Try mapbox-gl 3D extrude fill layers

mapbox-gl-extrude

Try mapbox-gl 3D extrude fill layers

.block

license: mit
height: 1000

.gitignore

node_modules
npm-debug.log

raw_data
data.json

README.md

Données gracieuseté de:

• http://donnees.ville.montreal.qc.ca/dataset/polygones-arrondissements/resource/e9b0f927-8f75-458c-8fda-b5da65cc8b73
• http://donnees.ville.montreal.qc.ca/dataset/population-recensement/resource/370b0c30-886a-435b-9049-bcc5a5dd2e80

Inspiration:

• https://www.mapbox.com/mapbox-gl-js/example/3d-extrusion-floorplan/

bundle.js

(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){(function(process){function normalizeArray(parts,allowAboveRoot){var up=0;for(var i=parts.length-1;i>=0;i--){var last=parts[i];if(last==="."){parts.splice(i,1)}else if(last===".."){parts.splice(i,1);up++}else if(up){parts.splice(i,1);up--}}if(allowAboveRoot){for(;up--;up){parts.unshift("..")}}return parts}var splitPathRe=/^(\/?|)([\s\S]*?)((?:\.{1,2}|[^\/]+?|)(\.[^.\/]*|))(?:[\/]*)$/;var splitPath=function(filename){return splitPathRe.exec(filename).slice(1)};exports.resolve=function(){var resolvedPath="",resolvedAbsolute=false;for(var i=arguments.length-1;i>=-1&&!resolvedAbsolute;i--){var path=i>=0?arguments[i]:process.cwd();if(typeof path!=="string"){throw new TypeError("Arguments to path.resolve must be strings")}else if(!path){continue}resolvedPath=path+"/"+resolvedPath;resolvedAbsolute=path.charAt(0)==="/"}resolvedPath=normalizeArray(filter(resolvedPath.split("/"),function(p){return!!p}),!resolvedAbsolute).join("/");return(resolvedAbsolute?"/":"")+resolvedPath||"."};exports.normalize=function(path){var isAbsolute=exports.isAbsolute(path),trailingSlash=substr(path,-1)==="/";path=normalizeArray(filter(path.split("/"),function(p){return!!p}),!isAbsolute).join("/");if(!path&&!isAbsolute){path="."}if(path&&trailingSlash){path+="/"}return(isAbsolute?"/":"")+path};exports.isAbsolute=function(path){return path.charAt(0)==="/"};exports.join=function(){var paths=Array.prototype.slice.call(arguments,0);return exports.normalize(filter(paths,function(p,index){if(typeof p!=="string"){throw new TypeError("Arguments to path.join must be strings")}return p}).join("/"))};exports.relative=function(from,to){from=exports.resolve(from).substr(1);to=exports.resolve(to).substr(1);function trim(arr){var start=0;for(;start<arr.length;start++){if(arr[start]!=="")break}var end=arr.length-1;for(;end>=0;end--){if(arr[end]!=="")break}if(start>end)return[];return arr.slice(start,end-start+1)}var fromParts=trim(from.split("/"));var toParts=trim(to.split("/"));var length=Math.min(fromParts.length,toParts.length);var samePartsLength=length;for(var i=0;i<length;i++){if(fromParts[i]!==toParts[i]){samePartsLength=i;break}}var outputParts=[];for(var i=samePartsLength;i<fromParts.length;i++){outputParts.push("..")}outputParts=outputParts.concat(toParts.slice(samePartsLength));return outputParts.join("/")};exports.sep="/";exports.delimiter=":";exports.dirname=function(path){var 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Item(fun,array){this.fun=fun;this.array=array}Item.prototype.run=function(){this.fun.apply(null,this.array)};process.title="browser";process.browser=true;process.env={};process.argv=[];process.version="";process.versions={};function noop(){}process.on=noop;process.addListener=noop;process.once=noop;process.off=noop;process.removeListener=noop;process.removeAllListeners=noop;process.emit=noop;process.binding=function(name){throw new Error("process.binding is not supported")};process.cwd=function(){return"/"};process.chdir=function(dir){throw new Error("process.chdir is not supported")};process.umask=function(){return 0}},{}],3:[function(require,module,exports){(function(global){(function(root){var freeExports=typeof exports=="object"&&exports&&!exports.nodeType&&exports;var freeModule=typeof module=="object"&&module&&!module.nodeType&&module;var freeGlobal=typeof 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encoded=map(labels,fn).join(".");return result+encoded}function ucs2decode(string){var output=[],counter=0,length=string.length,value,extra;while(counter<length){value=string.charCodeAt(counter++);if(value>=55296&&value<=56319&&counter<length){extra=string.charCodeAt(counter++);if((extra&64512)==56320){output.push(((value&1023)<<10)+(extra&1023)+65536)}else{output.push(value);counter--}}else{output.push(value)}}return output}function ucs2encode(array){return map(array,function(value){var output="";if(value>65535){value-=65536;output+=stringFromCharCode(value>>>10&1023|55296);value=56320|value&1023}output+=stringFromCharCode(value);return output}).join("")}function basicToDigit(codePoint){if(codePoint-48<10){return codePoint-22}if(codePoint-65<26){return codePoint-65}if(codePoint-97<26){return codePoint-97}return base}function digitToBasic(digit,flag){return digit+22+75*(digit<26)-((flag!=0)<<5)}function adapt(delta,numPoints,firstTime){var k=0;delta=firstTime?floor(delta/damp):delta>>1;delta+=floor(delta/numPoints);for(;delta>baseMinusTMin*tMax>>1;k+=base){delta=floor(delta/baseMinusTMin)}return floor(k+(baseMinusTMin+1)*delta/(delta+skew))}function decode(input){var output=[],inputLength=input.length,out,i=0,n=initialN,bias=initialBias,basic,j,index,oldi,w,k,digit,t,baseMinusT;basic=input.lastIndexOf(delimiter);if(basic<0){basic=0}for(j=0;j<basic;++j){if(input.charCodeAt(j)>=128){error("not-basic")}output.push(input.charCodeAt(j))}for(index=basic>0?basic+1:0;index<inputLength;){for(oldi=i,w=1,k=base;;k+=base){if(index>=inputLength){error("invalid-input")}digit=basicToDigit(input.charCodeAt(index++));if(digit>=base||digit>floor((maxInt-i)/w)){error("overflow")}i+=digit*w;t=k<=bias?tMin:k>=bias+tMax?tMax:k-bias;if(digit<t){break}baseMinusT=base-t;if(w>floor(maxInt/baseMinusT)){error("overflow")}w*=baseMinusT}out=output.length+1;bias=adapt(i-oldi,out,oldi==0);if(floor(i/out)>maxInt-n){error("overflow")}n+=floor(i/out);i%=out;output.splice(i++,0,n)}return ucs2encode(output)}function encode(input){var n,delta,handledCPCount,basicLength,bias,j,m,q,k,t,currentValue,output=[],inputLength,handledCPCountPlusOne,baseMinusT,qMinusT;input=ucs2decode(input);inputLength=input.length;n=initialN;delta=0;bias=initialBias;for(j=0;j<inputLength;++j){currentValue=input[j];if(currentValue<128){output.push(stringFromCharCode(currentValue))}}handledCPCount=basicLength=output.length;if(basicLength){output.push(delimiter)}while(handledCPCount<inputLength){for(m=maxInt,j=0;j<inputLength;++j){currentValue=input[j];if(currentValue>=n&&currentValue<m){m=currentValue}}handledCPCountPlusOne=handledCPCount+1;if(m-n>floor((maxInt-delta)/handledCPCountPlusOne)){error("overflow")}delta+=(m-n)*handledCPCountPlusOne;n=m;for(j=0;j<inputLength;++j){currentValue=input[j];if(currentValue<n&&++delta>maxInt){error("overflow")}if(currentValue==n){for(q=delta,k=base;;k+=base){t=k<=bias?tMin:k>=bias+tMax?tMax:k-bias;if(q<t){break}qMinusT=q-t;baseMinusT=base-t;output.push(stringFromCharCode(digitToBasic(t+qMinusT%baseMinusT,0)));q=floor(qMinusT/baseMinusT)}output.push(stringFromCharCode(digitToBasic(q,0)));bias=adapt(delta,handledCPCountPlusOne,handledCPCount==basicLength);delta=0;++handledCPCount}}++delta;++n}return output.join("")}function toUnicode(input){return mapDomain(input,function(string){return regexPunycode.test(string)?decode(string.slice(4).toLowerCase()):string})}function toASCII(input){return mapDomain(input,function(string){return regexNonASCII.test(string)?"xn--"+encode(string):string})}punycode={version:"1.4.1",ucs2:{decode:ucs2decode,encode:ucs2encode},decode:decode,encode:encode,toASCII:toASCII,toUnicode:toUnicode};if(typeof define=="function"&&typeof define.amd=="object"&&define.amd){define("punycode",function(){return punycode})}else if(freeExports&&freeModule){if(module.exports==freeExports){freeModule.exports=punycode}else{for(key in punycode){punycode.hasOwnProperty(key)&&(freeExports[key]=punycode[key])}}}else{root.punycode=punycode}})(this)}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],4:[function(require,module,exports){"use strict";function hasOwnProperty(obj,prop){return 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queryIndex=url.indexOf("?"),splitter=queryIndex!==-1&&queryIndex<url.indexOf("#")?"?":"#",uSplit=url.split(splitter),slashRegex=/\\/g;uSplit[0]=uSplit[0].replace(slashRegex,"/");url=uSplit.join(splitter);var rest=url;rest=rest.trim();if(!slashesDenoteHost&&url.split("#").length===1){var simplePath=simplePathPattern.exec(rest);if(simplePath){this.path=rest;this.href=rest;this.pathname=simplePath[1];if(simplePath[2]){this.search=simplePath[2];if(parseQueryString){this.query=querystring.parse(this.search.substr(1))}else{this.query=this.search.substr(1)}}else if(parseQueryString){this.search="";this.query={}}return this}}var proto=protocolPattern.exec(rest);if(proto){proto=proto[0];var lowerProto=proto.toLowerCase();this.protocol=lowerProto;rest=rest.substr(proto.length)}if(slashesDenoteHost||proto||rest.match(/^\/\/[^@\/]+@[^@\/]+/)){var slashes=rest.substr(0,2)==="//";if(slashes&&!(proto&&hostlessProtocol[proto])){rest=rest.substr(2);this.slashes=true}}if(!hostlessProtocol[proto]&&(slashes||proto&&!slashedProtocol[proto])){var hostEnd=-1;for(var i=0;i<hostEndingChars.length;i++){var hec=rest.indexOf(hostEndingChars[i]);if(hec!==-1&&(hostEnd===-1||hec<hostEnd))hostEnd=hec}var auth,atSign;if(hostEnd===-1){atSign=rest.lastIndexOf("@")}else{atSign=rest.lastIndexOf("@",hostEnd)}if(atSign!==-1){auth=rest.slice(0,atSign);rest=rest.slice(atSign+1);this.auth=decodeURIComponent(auth)}hostEnd=-1;for(var i=0;i<nonHostChars.length;i++){var hec=rest.indexOf(nonHostChars[i]);if(hec!==-1&&(hostEnd===-1||hec<hostEnd))hostEnd=hec}if(hostEnd===-1)hostEnd=rest.length;this.host=rest.slice(0,hostEnd);rest=rest.slice(hostEnd);this.parseHost();this.hostname=this.hostname||"";var ipv6Hostname=this.hostname[0]==="["&&this.hostname[this.hostname.length-1]==="]";if(!ipv6Hostname){var hostparts=this.hostname.split(/\./);for(var i=0,l=hostparts.length;i<l;i++){var part=hostparts[i];if(!part)continue;if(!part.match(hostnamePartPattern)){var newpart="";for(var j=0,k=part.length;j<k;j++){if(part.charCodeAt(j)>127){newpart+="x"}else{newpart+=part[j]}}if(!newpart.match(hostnamePartPattern)){var validParts=hostparts.slice(0,i);var notHost=hostparts.slice(i+1);var bit=part.match(hostnamePartStart);if(bit){validParts.push(bit[1]);notHost.unshift(bit[2])}if(notHost.length){rest="/"+notHost.join(".")+rest}this.hostname=validParts.join(".");break}}}}if(this.hostname.length>hostnameMaxLen){this.hostname=""}else{this.hostname=this.hostname.toLowerCase()}if(!ipv6Hostname){this.hostname=punycode.toASCII(this.hostname)}var p=this.port?":"+this.port:"";var h=this.hostname||"";this.host=h+p;this.href+=this.host;if(ipv6Hostname){this.hostname=this.hostname.substr(1,this.hostname.length-2);if(rest[0]!=="/"){rest="/"+rest}}}if(!unsafeProtocol[lowerProto]){for(var i=0,l=autoEscape.length;i<l;i++){var ae=autoEscape[i];if(rest.indexOf(ae)===-1)continue;var esc=encodeURIComponent(ae);if(esc===ae){esc=escape(ae)}rest=rest.split(ae).join(esc)}}var hash=rest.indexOf("#");if(hash!==-1){this.hash=rest.substr(hash);rest=rest.slice(0,hash)}var qm=rest.indexOf("?");if(qm!==-1){this.search=rest.substr(qm);this.query=rest.substr(qm+1);if(parseQueryString){this.query=querystring.parse(this.query)}rest=rest.slice(0,qm)}else if(parseQueryString){this.search="";this.query={}}if(rest)this.pathname=rest;if(slashedProtocol[lowerProto]&&this.hostname&&!this.pathname){this.pathname="/"}if(this.pathname||this.search){var p=this.pathname||"";var s=this.search||"";this.path=p+s}this.href=this.format();return this};function urlFormat(obj){if(util.isString(obj))obj=urlParse(obj);if(!(obj instanceof Url))return Url.prototype.format.call(obj);return obj.format()}Url.prototype.format=function(){var auth=this.auth||"";if(auth){auth=encodeURIComponent(auth);auth=auth.replace(/%3A/i,":");auth+="@"}var protocol=this.protocol||"",pathname=this.pathname||"",hash=this.hash||"",host=false,query="";if(this.host){host=auth+this.host}else if(this.hostname){host=auth+(this.hostname.indexOf(":")===-1?this.hostname:"["+this.hostname+"]");if(this.port){host+=":"+this.port}}if(this.query&&util.isObject(this.query)&&Object.keys(this.query).length){query=querystring.stringify(this.query)}var search=this.search||query&&"?"+query||"";if(protocol&&protocol.substr(-1)!==":")protocol+=":";if(this.slashes||(!protocol||slashedProtocol[protocol])&&host!==false){host="//"+(host||"");if(pathname&&pathname.charAt(0)!=="/")pathname="/"+pathname}else if(!host){host=""}if(hash&&hash.charAt(0)!=="#")hash="#"+hash;if(search&&search.charAt(0)!=="?")search="?"+search;pathname=pathname.replace(/[?#]/g,function(match){return encodeURIComponent(match)});search=search.replace("#","%23");return protocol+host+pathname+search+hash};function urlResolve(source,relative){return urlParse(source,false,true).resolve(relative)}Url.prototype.resolve=function(relative){return this.resolveObject(urlParse(relative,false,true)).format()};function urlResolveObject(source,relative){if(!source)return relative;return urlParse(source,false,true).resolveObject(relative)}Url.prototype.resolveObject=function(relative){if(util.isString(relative)){var rel=new Url;rel.parse(relative,false,true);relative=rel}var result=new Url;var tkeys=Object.keys(this);for(var tk=0;tk<tkeys.length;tk++){var tkey=tkeys[tk];result[tkey]=this[tkey]}result.hash=relative.hash;if(relative.href===""){result.href=result.format();return result}if(relative.slashes&&!relative.protocol){var rkeys=Object.keys(relative);for(var rk=0;rk<rkeys.length;rk++){var rkey=rkeys[rk];if(rkey!=="protocol")result[rkey]=relative[rkey]}if(slashedProtocol[result.protocol]&&result.hostname&&!result.pathname){result.path=result.pathname="/"}result.href=result.format();return result}if(relative.protocol&&relative.protocol!==result.protocol){if(!slashedProtocol[relative.protocol]){var keys=Object.keys(relative);for(var v=0;v<keys.length;v++){var k=keys[v];result[k]=relative[k]}result.href=result.format();return result}result.protocol=relative.protocol;if(!relative.host&&!hostlessProtocol[relative.protocol]){var relPath=(relative.pathname||"").split("/");while(relPath.length&&!(relative.host=relPath.shift()));if(!relative.host)relative.host="";if(!relative.hostname)relative.hostname="";if(relPath[0]!=="")relPath.unshift("");if(relPath.length<2)relPath.unshift("");result.pathname=relPath.join("/")}else{result.pathname=relative.pathname}result.search=relative.search;result.query=relative.query;result.host=relative.host||"";result.auth=relative.auth;result.hostname=relative.hostname||relative.host;result.port=relative.port;if(result.pathname||result.search){var p=result.pathname||"";var s=result.search||"";result.path=p+s}result.slashes=result.slashes||relative.slashes;result.href=result.format();return result}var isSourceAbs=result.pathname&&result.pathname.charAt(0)==="/",isRelAbs=relative.host||relative.pathname&&relative.pathname.charAt(0)==="/",mustEndAbs=isRelAbs||isSourceAbs||result.host&&relative.pathname,removeAllDots=mustEndAbs,srcPath=result.pathname&&result.pathname.split("/")||[],relPath=relative.pathname&&relative.pathname.split("/")||[],psychotic=result.protocol&&!slashedProtocol[result.protocol];if(psychotic){result.hostname="";result.port=null;if(result.host){if(srcPath[0]==="")srcPath[0]=result.host;else srcPath.unshift(result.host)}result.host="";if(relative.protocol){relative.hostname=null;relative.port=null;if(relative.host){if(relPath[0]==="")relPath[0]=relative.host;else relPath.unshift(relative.host)}relative.host=null}mustEndAbs=mustEndAbs&&(relPath[0]===""||srcPath[0]==="")}if(isRelAbs){result.host=relative.host||relative.host===""?relative.host:result.host;result.hostname=relative.hostname||relative.hostname===""?relative.hostname:result.hostname;result.search=relative.search;result.query=relative.query;srcPath=relPath}else if(relPath.length){if(!srcPath)srcPath=[];srcPath.pop();srcPath=srcPath.concat(relPath);result.search=relative.search;result.query=relative.query}else if(!util.isNullOrUndefined(relative.search)){if(psychotic){result.hostname=result.host=srcPath.shift();var authInHost=result.host&&result.host.indexOf("@")>0?result.host.split("@"):false;if(authInHost){result.auth=authInHost.shift();result.host=result.hostname=authInHost.shift()}}result.search=relative.search;result.query=relative.query;if(!util.isNull(result.pathname)||!util.isNull(result.search)){result.path=(result.pathname?result.pathname:"")+(result.search?result.search:"")}result.href=result.format();return result}if(!srcPath.length){result.pathname=null;if(result.search){result.path="/"+result.search}else{result.path=null}result.href=result.format();return result}var last=srcPath.slice(-1)[0];var hasTrailingSlash=(result.host||relative.host||srcPath.length>1)&&(last==="."||last==="..")||last==="";var up=0;for(var i=srcPath.length;i>=0;i--){last=srcPath[i];if(last==="."){srcPath.splice(i,1)}else if(last===".."){srcPath.splice(i,1);up++}else if(up){srcPath.splice(i,1);up--}}if(!mustEndAbs&&!removeAllDots){for(;up--;up){srcPath.unshift("..")}}if(mustEndAbs&&srcPath[0]!==""&&(!srcPath[0]||srcPath[0].charAt(0)!=="/")){srcPath.unshift("")}if(hasTrailingSlash&&srcPath.join("/").substr(-1)!=="/"){srcPath.push("")}var isAbsolute=srcPath[0]===""||srcPath[0]&&srcPath[0].charAt(0)==="/";if(psychotic){result.hostname=result.host=isAbsolute?"":srcPath.length?srcPath.shift():"";var authInHost=result.host&&result.host.indexOf("@")>0?result.host.split("@"):false;if(authInHost){result.auth=authInHost.shift();result.host=result.hostname=authInHost.shift()}}mustEndAbs=mustEndAbs||result.host&&srcPath.length;if(mustEndAbs&&!isAbsolute){srcPath.unshift("")}if(!srcPath.length){result.pathname=null;result.path=null}else{result.pathname=srcPath.join("/")}if(!util.isNull(result.pathname)||!util.isNull(result.search)){result.path=(result.pathname?result.pathname:"")+(result.search?result.search:"")}result.auth=relative.auth||result.auth;result.slashes=result.slashes||relative.slashes;result.href=result.format();return result};Url.prototype.parseHost=function(){var host=this.host;var port=portPattern.exec(host);if(port){port=port[0];if(port!==":"){this.port=port.substr(1)}host=host.substr(0,host.length-port.length)}if(host)this.hostname=host}},{"./util":8,punycode:3,querystring:6}],8:[function(require,module,exports){"use strict";module.exports={isString:function(arg){return typeof arg==="string"},isObject:function(arg){return typeof arg==="object"&&arg!==null},isNull:function(arg){return arg===null},isNullOrUndefined:function(arg){return arg==null}}},{}],9:[function(require,module,exports){if(typeof Object.create==="function"){module.exports=function inherits(ctor,superCtor){ctor.super_=superCtor;ctor.prototype=Object.create(superCtor.prototype,{constructor:{value:ctor,enumerable:false,writable:true,configurable:true}})}}else{module.exports=function inherits(ctor,superCtor){ctor.super_=superCtor;var TempCtor=function(){};TempCtor.prototype=superCtor.prototype;ctor.prototype=new TempCtor;ctor.prototype.constructor=ctor}}},{}],10:[function(require,module,exports){module.exports=function isBuffer(arg){return arg&&typeof arg==="object"&&typeof arg.copy==="function"&&typeof arg.fill==="function"&&typeof arg.readUInt8==="function"}},{}],11:[function(require,module,exports){(function(process,global){var formatRegExp=/%[sdj%]/g;exports.format=function(f){if(!isString(f)){var objects=[];for(var i=0;i<arguments.length;i++){objects.push(inspect(arguments[i]))}return objects.join(" ")}var i=1;var args=arguments;var len=args.length;var str=String(f).replace(formatRegExp,function(x){if(x==="%%")return"%";if(i>=len)return x;switch(x){case"%s":return String(args[i++]);case"%d":return Number(args[i++]);case"%j":try{return JSON.stringify(args[i++])}catch(_){return"[Circular]"}default:return x}});for(var x=args[i];i<len;x=args[++i]){if(isNull(x)||!isObject(x)){str+=" "+x}else{str+=" "+inspect(x)}}return str};exports.deprecate=function(fn,msg){if(isUndefined(global.process)){return function(){return exports.deprecate(fn,msg).apply(this,arguments)}}if(process.noDeprecation===true){return fn}var warned=false;function deprecated(){if(!warned){if(process.throwDeprecation){throw new Error(msg)}else if(process.traceDeprecation){console.trace(msg)}else{console.error(msg)}warned=true}return fn.apply(this,arguments)}return deprecated};var debugs={};var debugEnviron;exports.debuglog=function(set){if(isUndefined(debugEnviron))debugEnviron=process.env.NODE_DEBUG||"";set=set.toUpperCase();if(!debugs[set]){if(new RegExp("\\b"+set+"\\b","i").test(debugEnviron)){var pid=process.pid;debugs[set]=function(){var msg=exports.format.apply(exports,arguments);console.error("%s %d: %s",set,pid,msg)}}else{debugs[set]=function(){}}}return debugs[set]};function inspect(obj,opts){var ctx={seen:[],stylize:stylizeNoColor};if(arguments.length>=3)ctx.depth=arguments[2];if(arguments.length>=4)ctx.colors=arguments[3];if(isBoolean(opts)){ctx.showHidden=opts}else if(opts){exports._extend(ctx,opts)}if(isUndefined(ctx.showHidden))ctx.showHidden=false;if(isUndefined(ctx.depth))ctx.depth=2;if(isUndefined(ctx.colors))ctx.colors=false;if(isUndefined(ctx.customInspect))ctx.customInspect=true;if(ctx.colors)ctx.stylize=stylizeWithColor;return formatValue(ctx,obj,ctx.depth)}exports.inspect=inspect;inspect.colors={bold:[1,22],italic:[3,23],underline:[4,24],inverse:[7,27],white:[37,39],grey:[90,39],black:[30,39],blue:[34,39],cyan:[36,39],green:[32,39],magenta:[35,39],red:[31,39],yellow:[33,39]};inspect.styles={special:"cyan",number:"yellow",boolean:"yellow",undefined:"grey",null:"bold",string:"green",date:"magenta",regexp:"red"};function stylizeWithColor(str,styleType){var style=inspect.styles[styleType];if(style){return"["+inspect.colors[style][0]+"m"+str+"["+inspect.colors[style][1]+"m"}else{return str}}function stylizeNoColor(str,styleType){return str}function arrayToHash(array){var hash={};array.forEach(function(val,idx){hash[val]=true});return hash}function formatValue(ctx,value,recurseTimes){if(ctx.customInspect&&value&&isFunction(value.inspect)&&value.inspect!==exports.inspect&&!(value.constructor&&value.constructor.prototype===value)){var ret=value.inspect(recurseTimes,ctx);if(!isString(ret)){ret=formatValue(ctx,ret,recurseTimes)}return ret}var primitive=formatPrimitive(ctx,value);if(primitive){return primitive}var keys=Object.keys(value);var visibleKeys=arrayToHash(keys);if(ctx.showHidden){keys=Object.getOwnPropertyNames(value)}if(isError(value)&&(keys.indexOf("message")>=0||keys.indexOf("description")>=0)){return formatError(value)}if(keys.length===0){if(isFunction(value)){var name=value.name?": "+value.name:"";return ctx.stylize("[Function"+name+"]","special")}if(isRegExp(value)){return ctx.stylize(RegExp.prototype.toString.call(value),"regexp")}if(isDate(value)){return ctx.stylize(Date.prototype.toString.call(value),"date")}if(isError(value)){return formatError(value)}}var base="",array=false,braces=["{","}"];if(isArray(value)){array=true;braces=["[","]"]}if(isFunction(value)){var n=value.name?": "+value.name:"";base=" [Function"+n+"]"}if(isRegExp(value)){base=" "+RegExp.prototype.toString.call(value)}if(isDate(value)){base=" "+Date.prototype.toUTCString.call(value)}if(isError(value)){base=" "+formatError(value)}if(keys.length===0&&(!array||value.length==0)){return braces[0]+base+braces[1]}if(recurseTimes<0){if(isRegExp(value)){return ctx.stylize(RegExp.prototype.toString.call(value),"regexp")}else{return ctx.stylize("[Object]","special")}}ctx.seen.push(value);var output;if(array){output=formatArray(ctx,value,recurseTimes,visibleKeys,keys)}else{output=keys.map(function(key){return formatProperty(ctx,value,recurseTimes,visibleKeys,key,array)})}ctx.seen.pop();return reduceToSingleString(output,base,braces)}function formatPrimitive(ctx,value){if(isUndefined(value))return ctx.stylize("undefined","undefined");if(isString(value)){var simple="'"+JSON.stringify(value).replace(/^"|"$/g,"").replace(/'/g,"\\'").replace(/\\"/g,'"')+"'";return ctx.stylize(simple,"string")}if(isNumber(value))return ctx.stylize(""+value,"number");if(isBoolean(value))return ctx.stylize(""+value,"boolean");if(isNull(value))return ctx.stylize("null","null")}function formatError(value){return"["+Error.prototype.toString.call(value)+"]"}function formatArray(ctx,value,recurseTimes,visibleKeys,keys){var output=[];for(var i=0,l=value.length;i<l;++i){if(hasOwnProperty(value,String(i))){output.push(formatProperty(ctx,value,recurseTimes,visibleKeys,String(i),true))}else{output.push("")}}keys.forEach(function(key){if(!key.match(/^\d+$/)){output.push(formatProperty(ctx,value,recurseTimes,visibleKeys,key,true))}});
return output}function formatProperty(ctx,value,recurseTimes,visibleKeys,key,array){var name,str,desc;desc=Object.getOwnPropertyDescriptor(value,key)||{value:value[key]};if(desc.get){if(desc.set){str=ctx.stylize("[Getter/Setter]","special")}else{str=ctx.stylize("[Getter]","special")}}else{if(desc.set){str=ctx.stylize("[Setter]","special")}}if(!hasOwnProperty(visibleKeys,key)){name="["+key+"]"}if(!str){if(ctx.seen.indexOf(desc.value)<0){if(isNull(recurseTimes)){str=formatValue(ctx,desc.value,null)}else{str=formatValue(ctx,desc.value,recurseTimes-1)}if(str.indexOf("\n")>-1){if(array){str=str.split("\n").map(function(line){return"  "+line}).join("\n").substr(2)}else{str="\n"+str.split("\n").map(function(line){return"   "+line}).join("\n")}}}else{str=ctx.stylize("[Circular]","special")}}if(isUndefined(name)){if(array&&key.match(/^\d+$/)){return str}name=JSON.stringify(""+key);if(name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)){name=name.substr(1,name.length-2);name=ctx.stylize(name,"name")}else{name=name.replace(/'/g,"\\'").replace(/\\"/g,'"').replace(/(^"|"$)/g,"'");name=ctx.stylize(name,"string")}}return name+": "+str}function reduceToSingleString(output,base,braces){var numLinesEst=0;var length=output.reduce(function(prev,cur){numLinesEst++;if(cur.indexOf("\n")>=0)numLinesEst++;return prev+cur.replace(/\u001b\[\d\d?m/g,"").length+1},0);if(length>60){return braces[0]+(base===""?"":base+"\n ")+" "+output.join(",\n  ")+" "+braces[1]}return braces[0]+base+" "+output.join(", ")+" "+braces[1]}function isArray(ar){return Array.isArray(ar)}exports.isArray=isArray;function isBoolean(arg){return typeof arg==="boolean"}exports.isBoolean=isBoolean;function isNull(arg){return arg===null}exports.isNull=isNull;function isNullOrUndefined(arg){return arg==null}exports.isNullOrUndefined=isNullOrUndefined;function isNumber(arg){return typeof arg==="number"}exports.isNumber=isNumber;function isString(arg){return typeof arg==="string"}exports.isString=isString;function isSymbol(arg){return typeof arg==="symbol"}exports.isSymbol=isSymbol;function isUndefined(arg){return arg===void 0}exports.isUndefined=isUndefined;function isRegExp(re){return isObject(re)&&objectToString(re)==="[object RegExp]"}exports.isRegExp=isRegExp;function isObject(arg){return typeof arg==="object"&&arg!==null}exports.isObject=isObject;function isDate(d){return isObject(d)&&objectToString(d)==="[object Date]"}exports.isDate=isDate;function isError(e){return isObject(e)&&(objectToString(e)==="[object Error]"||e instanceof Error)}exports.isError=isError;function isFunction(arg){return typeof arg==="function"}exports.isFunction=isFunction;function isPrimitive(arg){return arg===null||typeof arg==="boolean"||typeof arg==="number"||typeof arg==="string"||typeof arg==="symbol"||typeof arg==="undefined"}exports.isPrimitive=isPrimitive;exports.isBuffer=require("./support/isBuffer");function objectToString(o){return Object.prototype.toString.call(o)}function pad(n){return n<10?"0"+n.toString(10):n.toString(10)}var months=["Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"];function timestamp(){var d=new Date;var time=[pad(d.getHours()),pad(d.getMinutes()),pad(d.getSeconds())].join(":");return[d.getDate(),months[d.getMonth()],time].join(" ")}exports.log=function(){console.log("%s - %s",timestamp(),exports.format.apply(exports,arguments))};exports.inherits=require("inherits");exports._extend=function(origin,add){if(!add||!isObject(add))return origin;var keys=Object.keys(add);var i=keys.length;while(i--){origin[keys[i]]=add[keys[i]]}return origin};function hasOwnProperty(obj,prop){return Object.prototype.hasOwnProperty.call(obj,prop)}}).call(this,require("_process"),typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./support/isBuffer":10,_process:2,inherits:9}],12:[function(require,module,exports){module.exports={type:"Topology",objects:{0:{name:"mapbox-gl-extrude",type:"GeometryCollection",properties:{"pop-colorbar":[[0,"#440154"],[2e4,"#472c7a"],[4e4,"#3c508b"],[6e4,"#2d708e"],[8e4,"#228d8d"],[1e5,"#24aa83"],[12e4,"#52c569"],[14e4,"#9bd93c"],[16e4,"#ece51b"]],"density-colorbar":[[0,"#440154"],[2e3,"#453882"],[4e3,"#31668e"],[6e3,"#228d8d"],[8e3,"#2fb47c"],[1e4,"#81d34d"],[12e3,"#efe51c"]]},geometries:[{type:"Polygon",properties:{name:"Ahuntsic-Cartierville",pop:126891,density:4961.868225779869,centroid:[-73.67415923134685,45.55963677315867],"pop-color":"#67cc5c","pop-z":7688.919051572128,"density-color":"#29798e","density-z":4029.396391825679},arcs:[[0,1,2,3,4,5]]},{type:"Polygon",properties:{name:"Anjou",pop:41928,density:3020.9381263873756,centroid:[-73.55647396467437,45.60958367032752],"pop-color":"#3a538b","pop-z":2540.6135816907126,"density-color":"#3c508b","density-z":2453.2205678397936},arcs:[[6,7,8,9,10]]},{type:"Polygon",properties:{name:"Côte-des-Neiges-Notre-Dame-de-Grâce",pop:165031,density:7680.930451318207,centroid:[-73.64007655497313,45.476771421416295],"pop-color":"#fde725","pop-z":1e4,"density-color":"#27ad81","density-z":6237.471863038273},arcs:[[11,12,13,14,15,16,17,18,19,20,21,22,23]]},{type:"Polygon",properties:{name:"Lachine",pop:41616,density:1799.2148205203657,centroid:[-73.6955454776235,45.45306637317464],"pop-color":"#3b528b","pop-z":2521.7080427313654,"density-color":"#46337f","density-z":1461.092752979063},arcs:[[24,25,26,27,28,29,30]]},{type:"Polygon",properties:{name:"LaSalle",pop:74276,density:2947.5365660003063,centroid:[-73.61886810236031,45.43205464417021],"pop-color":"#25848e","pop-z":4500.730165847628,"density-color":"#3c4f8a","density-z":2393.6131842657273},arcs:[[31,32,33,-26]]},{type:"Polygon",properties:{name:"Le 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bbox:[-73.9966030869942,45.3854017852652,-73.4738656203371,45.707578526278]}},{}],13:[function(require,module,exports){var mapboxgl=require("mapbox-gl");var d3_selection=require("d3-selection");var d3_format=require("d3-format");var topojson=require("topojson-client");var topology=require("./data.json");var data=topojson.feature(topology,topology.objects["0"]);data.properties=topology.objects["0"].properties;var specs=[{key:"pop",name:"Population",units:"habitants",cbUnits:"millier d'habitants",format:","},{key:"density",name:"Densité de population",units:"habitants par km²",cbUnits:"millers d'habitants par km²",format:",.2f"}].reverse();mapboxgl.accessToken="pk.eyJ1IjoiaHZyOHpvZGoiLCJhIjoiY2x3OXAzNHV6MDVwbDJrcDd4N3VvNWNlOSJ9.n6YG-bG9xRvigumeUerRvg";d3_format.formatDefaultLocale({decimal:",",thousands:" ",grouping:[3]});d3_selection.select("body").append("fieldset").style("border","none").append("select").attr("id","layer-select").selectAll("option").data(specs).enter().append("option").attr("value",function(d){return d.key}).text(function(d){return d.name});d3_selection.select("body").append("div").attr("id","map").style("width","1000px").style("height","800px");d3_selection.select("body").append("svg").attr("width",1e3).attr("height",300);var map=new mapboxgl.Map({container:"map",style:"mapbox://styles/mapbox/light-v9",center:[-73.67563994222256,45.491548049146814],zoom:10,pitch:10});map.addControl(new mapboxgl.NavigationControl);var popup=new mapboxgl.Popup({closeButton:false,closeOnClick:false});map.on("load",function(){map.addSource("source",{type:"geojson",data:data});specs.forEach(function(spec){addChoroplethLayer(spec);addExtrudedLayers(spec);addColorbar(spec)});map.on("mousemove",mousemoveHandler);map.on("click",clickHandler);setVisibility();d3_selection.select("#layer-select").on("click",function(){clearVisibility();setVisibility()})});function addChoroplethLayer(spec){var key=spec.key;map.addLayer({id:"choropleth-"+key,type:"fill",source:"source",layout:{visibility:"none"},paint:{"fill-color":{property:key+"-color",type:"identity"},"fill-outline-color":"#088","fill-opacity":.7}})}function addExtrudedLayers(spec){var key=spec.key;data.features.forEach(function(f){var name=f.properties.name;map.addLayer({id:"extrude-"+name+"-"+key,type:"fill",source:"source",layout:{visibility:"none"},paint:{"fill-color":{property:key+"-color",type:"identity"},"fill-extrude-height":{property:key+"-z",type:"identity"},"fill-extrude-base":0,"fill-opacity":.65},filter:["==","name",name]})})}function addColorbar(spec){var key=spec.key;var colorbarData=data.properties[key+"-colorbar"];var formatter=function(v){return v/1e3};var n=colorbarData.length;var w=50;var h=30;var colorbar=d3_selection.select("svg").append("g").attr("id","colorbar-"+key).classed("colorbar",true).style("cursor","pointer").style("visibility","hidden");var items=colorbar.selectAll(".item").data(colorbarData).enter().append("g").classed("item",true).attr("transform",function(_,i){return"translate("+(i*w+5)+",0)"});items.append("rect").attr("x",0).attr("y",0).attr("width",w).attr("height",h).attr("fill",function(d){return d[1]});items.append("line").attr("x1",0).attr("y1",h).attr("x2",0).attr("y2",h+5).attr("stroke-width","1.5").attr("stroke","black");items.append("text").text(function(d){return formatter(d[0])}).attr("x",-5).attr("y",2*h);colorbar.append("text").text(""+spec.name).attr("x",""+(w*n+10)).attr("y",h/2+5);colorbar.append("text").text("[en "+spec.cbUnits+"]").attr("x",""+(w*n+10)).attr("y",h+15);items.on("click",function(d,i){var min=d[0];var max=colorbarData[i+1]?colorbarData[i+1][0]:Infinity;var featuresWithin=[];data.features.forEach(function(f){var val=f.properties[key];if(val>=min&&val<max){featuresWithin.push(f)}});var areAllFeatureVisible=featuresWithin.every(function(f){return extrudeVisiblity(f,key).get()==="visible"});var newVal=areAllFeatureVisible?"none":"visible";featuresWithin.forEach(function(f){extrudeVisiblity(f,key).set(newVal)})})}function mousemoveHandler(evt){var features=findFeatures(evt);map.getCanvas().style.cursor=features.length?"pointer":"";if(!features.length){popup.remove();return}var spec=getVisibleSpec();var feature=features[0];var prop=feature.properties;var lnglat=JSON.parse(prop.centroid);var formatter=d3_format.format(spec.format);var html=("\n    <b>"+prop.name+"</b><br>\n    Population: "+formatter(prop[spec.key])+" "+spec.units+"\n  ").trim();popup.setLngLat(new mapboxgl.LngLat(lnglat[0],lnglat[1])).setHTML(html).addTo(map);popup._container.onclick=function(){extrudeVisiblity(feature,spec.key).toggle()}}function clickHandler(evt){var features=findFeatures(evt);if(!features.length)return;var feature=features[0];var spec=getVisibleSpec();extrudeVisiblity(feature,spec.key).toggle()}function getVisibleSpec(){var key=d3_selection.select("#layer-select").node().value;return specs.filter(function(s){return s.key===key})[0]}function findFeatures(evt){return map.queryRenderedFeatures(evt.point,{layers:specs.map(function(s){return"choropleth-"+s.key})})}function setVisibility(){var spec=getVisibleSpec();var key=spec.key;map.setLayoutProperty("choropleth-"+key,"visibility","visible");d3_selection.select("#colorbar-"+key).style("visibility",null)}function clearVisibility(){specs.forEach(function(s){var key=s.key;map.setLayoutProperty("choropleth-"+key,"visibility","none");d3_selection.select("#colorbar-"+key).style("visibility","hidden");data.features.forEach(function(f){extrudeVisiblity(f,key).set("none")})})}function extrudeVisiblity(feature,key){var name=feature.properties.name;var layerId="extrude-"+name+"-"+key;var get=function(){return map.getLayoutProperty(layerId,"visibility")};var set=function(val){return map.setLayoutProperty(layerId,"visibility",val)};var toggle=function(){return set(get()==="visible"?"none":"visible")};return{get:get,set:set,toggle:toggle}}},{"./data.json":12,"d3-format":14,"d3-selection":15,"mapbox-gl":33,"topojson-client":216}],14:[function(require,module,exports){(function(global,factory){typeof exports==="object"&&typeof module!=="undefined"?factory(exports):typeof define==="function"&&define.amd?define(["exports"],factory):factory(global.d3=global.d3||{})})(this,function(exports){"use strict";function formatDecimal(x,p){if((i=(x=p?x.toExponential(p-1):x.toExponential()).indexOf("e"))<0)return null;var i,coefficient=x.slice(0,i);return[coefficient.length>1?coefficient[0]+coefficient.slice(2):coefficient,+x.slice(i+1)]}function exponent(x){return x=formatDecimal(Math.abs(x)),x?x[1]:NaN}function formatGroup(grouping,thousands){return function(value,width){var i=value.length,t=[],j=0,g=grouping[0],length=0;while(i>0&&g>0){if(length+g+1>width)g=Math.max(1,width-length);t.push(value.substring(i-=g,i+g));if((length+=g+1)>width)break;g=grouping[j=(j+1)%grouping.length]}return t.reverse().join(thousands)}}function formatDefault(x,p){x=x.toPrecision(p);out:for(var n=x.length,i=1,i0=-1,i1;i<n;++i){switch(x[i]){case".":i0=i1=i;break;case"0":if(i0===0)i0=i;i1=i;break;case"e":break out;default:if(i0>0)i0=0;break}}return i0>0?x.slice(0,i0)+x.slice(i1+1):x}var prefixExponent;function formatPrefixAuto(x,p){var d=formatDecimal(x,p);if(!d)return x+"";var coefficient=d[0],exponent=d[1],i=exponent-(prefixExponent=Math.max(-8,Math.min(8,Math.floor(exponent/3)))*3)+1,n=coefficient.length;return i===n?coefficient:i>n?coefficient+new Array(i-n+1).join("0"):i>0?coefficient.slice(0,i)+"."+coefficient.slice(i):"0."+new Array(1-i).join("0")+formatDecimal(x,Math.max(0,p+i-1))[0]}function formatRounded(x,p){var d=formatDecimal(x,p);if(!d)return x+"";var coefficient=d[0],exponent=d[1];return exponent<0?"0."+new Array(-exponent).join("0")+coefficient:coefficient.length>exponent+1?coefficient.slice(0,exponent+1)+"."+coefficient.slice(exponent+1):coefficient+new Array(exponent-coefficient.length+2).join("0")}var formatTypes={"":formatDefault,"%":function(x,p){return(x*100).toFixed(p)},b:function(x){return Math.round(x).toString(2)},c:function(x){return x+""},d:function(x){return Math.round(x).toString(10)},e:function(x,p){return x.toExponential(p)},f:function(x,p){return x.toFixed(p)},g:function(x,p){return x.toPrecision(p)},o:function(x){return Math.round(x).toString(8)},p:function(x,p){return formatRounded(x*100,p)},r:formatRounded,s:formatPrefixAuto,X:function(x){return Math.round(x).toString(16).toUpperCase()},x:function(x){return Math.round(x).toString(16)}};var re=/^(?:(.)?([<>=^]))?([+\-\( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?([a-z%])?$/i;function formatSpecifier(specifier){return new FormatSpecifier(specifier)}function FormatSpecifier(specifier){if(!(match=re.exec(specifier)))throw new Error("invalid format: "+specifier);var match,fill=match[1]||" ",align=match[2]||">",sign=match[3]||"-",symbol=match[4]||"",zero=!!match[5],width=match[6]&&+match[6],comma=!!match[7],precision=match[8]&&+match[8].slice(1),type=match[9]||"";if(type==="n")comma=true,type="g";else if(!formatTypes[type])type="";if(zero||fill==="0"&&align==="=")zero=true,fill="0",align="=";this.fill=fill;this.align=align;this.sign=sign;this.symbol=symbol;this.zero=zero;this.width=width;this.comma=comma;this.precision=precision;this.type=type}FormatSpecifier.prototype.toString=function(){return this.fill+this.align+this.sign+this.symbol+(this.zero?"0":"")+(this.width==null?"":Math.max(1,this.width|0))+(this.comma?",":"")+(this.precision==null?"":"."+Math.max(0,this.precision|0))+this.type};var prefixes=["y","z","a","f","p","n","µ","m","","k","M","G","T","P","E","Z","Y"];function identity(x){return x}function formatLocale(locale){var group=locale.grouping&&locale.thousands?formatGroup(locale.grouping,locale.thousands):identity,currency=locale.currency,decimal=locale.decimal;function newFormat(specifier){specifier=formatSpecifier(specifier);var fill=specifier.fill,align=specifier.align,sign=specifier.sign,symbol=specifier.symbol,zero=specifier.zero,width=specifier.width,comma=specifier.comma,precision=specifier.precision,type=specifier.type;var prefix=symbol==="$"?currency[0]:symbol==="#"&&/[boxX]/.test(type)?"0"+type.toLowerCase():"",suffix=symbol==="$"?currency[1]:/[%p]/.test(type)?"%":"";var formatType=formatTypes[type],maybeSuffix=!type||/[defgprs%]/.test(type);precision=precision==null?type?6:12:/[gprs]/.test(type)?Math.max(1,Math.min(21,precision)):Math.max(0,Math.min(20,precision));function format(value){var valuePrefix=prefix,valueSuffix=suffix,i,n,c;if(type==="c"){valueSuffix=formatType(value)+valueSuffix;value=""}else{value=+value;var valueNegative=(value<0||1/value<0)&&(value*=-1,true);value=formatType(value,precision);if(valueNegative){i=-1,n=value.length;valueNegative=false;while(++i<n){if(c=value.charCodeAt(i),48<c&&c<58||type==="x"&&96<c&&c<103||type==="X"&&64<c&&c<71){valueNegative=true;break}}}valuePrefix=(valueNegative?sign==="("?sign:"-":sign==="-"||sign==="("?"":sign)+valuePrefix;valueSuffix=valueSuffix+(type==="s"?prefixes[8+prefixExponent/3]:"")+(valueNegative&&sign==="("?")":"");if(maybeSuffix){i=-1,n=value.length;while(++i<n){if(c=value.charCodeAt(i),48>c||c>57){valueSuffix=(c===46?decimal+value.slice(i+1):value.slice(i))+valueSuffix;value=value.slice(0,i);break}}}}if(comma&&!zero)value=group(value,Infinity);var length=valuePrefix.length+value.length+valueSuffix.length,padding=length<width?new Array(width-length+1).join(fill):"";if(comma&&zero)value=group(padding+value,padding.length?width-valueSuffix.length:Infinity),padding="";switch(align){case"<":return valuePrefix+value+valueSuffix+padding;case"=":return valuePrefix+padding+value+valueSuffix;case"^":return padding.slice(0,length=padding.length>>1)+valuePrefix+value+valueSuffix+padding.slice(length)}return padding+valuePrefix+value+valueSuffix}format.toString=function(){return specifier+""};return format}function formatPrefix(specifier,value){var f=newFormat((specifier=formatSpecifier(specifier),specifier.type="f",specifier)),e=Math.max(-8,Math.min(8,Math.floor(exponent(value)/3)))*3,k=Math.pow(10,-e),prefix=prefixes[8+e/3];return function(value){return f(k*value)+prefix}}return{format:newFormat,formatPrefix:formatPrefix}}var locale;defaultLocale({decimal:".",thousands:",",grouping:[3],currency:["$",""]});function defaultLocale(definition){locale=formatLocale(definition);exports.format=locale.format;exports.formatPrefix=locale.formatPrefix;return locale}function precisionFixed(step){return Math.max(0,-exponent(Math.abs(step)))}function precisionPrefix(step,value){return Math.max(0,Math.max(-8,Math.min(8,Math.floor(exponent(value)/3)))*3-exponent(Math.abs(step)))}function precisionRound(step,max){step=Math.abs(step),max=Math.abs(max)-step;return Math.max(0,exponent(max)-exponent(step))+1}exports.formatDefaultLocale=defaultLocale;exports.formatLocale=formatLocale;exports.formatSpecifier=formatSpecifier;exports.precisionFixed=precisionFixed;exports.precisionPrefix=precisionPrefix;exports.precisionRound=precisionRound;Object.defineProperty(exports,"__esModule",{value:true})})},{}],15:[function(require,module,exports){(function(global,factory){typeof exports==="object"&&typeof module!=="undefined"?factory(exports):typeof define==="function"&&define.amd?define(["exports"],factory):factory(global.d3=global.d3||{})})(this,function(exports){"use strict";var xhtml="http://www.w3.org/1999/xhtml";var namespaces={svg:"http://www.w3.org/2000/svg",xhtml:xhtml,xlink:"http://www.w3.org/1999/xlink",xml:"http://www.w3.org/XML/1998/namespace",xmlns:"http://www.w3.org/2000/xmlns/"};function namespace(name){var prefix=name+="",i=prefix.indexOf(":");if(i>=0&&(prefix=name.slice(0,i))!=="xmlns")name=name.slice(i+1);return namespaces.hasOwnProperty(prefix)?{space:namespaces[prefix],local:name}:name}function creatorInherit(name){return function(){var document=this.ownerDocument,uri=this.namespaceURI;return uri===xhtml&&document.documentElement.namespaceURI===xhtml?document.createElement(name):document.createElementNS(uri,name)}}function creatorFixed(fullname){return function(){return this.ownerDocument.createElementNS(fullname.space,fullname.local)}}function creator(name){var fullname=namespace(name);return(fullname.local?creatorFixed:creatorInherit)(fullname)}var nextId=0;function local(){return new Local}function Local(){this._="@"+(++nextId).toString(36)}Local.prototype=local.prototype={constructor:Local,get:function(node){var id=this._;while(!(id in node))if(!(node=node.parentNode))return;return node[id]},set:function(node,value){return node[this._]=value},remove:function(node){return this._ in node&&delete node[this._]},toString:function(){return this._}};var matcher=function(selector){return function(){return this.matches(selector)}};if(typeof document!=="undefined"){var element=document.documentElement;if(!element.matches){var vendorMatches=element.webkitMatchesSelector||element.msMatchesSelector||element.mozMatchesSelector||element.oMatchesSelector;matcher=function(selector){return function(){return vendorMatches.call(this,selector)}}}}var matcher$1=matcher;var filterEvents={};exports.event=null;if(typeof document!=="undefined"){var element$1=document.documentElement;if(!("onmouseenter"in element$1)){filterEvents={mouseenter:"mouseover",mouseleave:"mouseout"}}}function filterContextListener(listener,index,group){listener=contextListener(listener,index,group);return function(event){var related=event.relatedTarget;if(!related||related!==this&&!(related.compareDocumentPosition(this)&8)){listener.call(this,event)}}}function contextListener(listener,index,group){return function(event1){var event0=exports.event;exports.event=event1;try{listener.call(this,this.__data__,index,group)}finally{exports.event=event0}}}function parseTypenames(typenames){return typenames.trim().split(/^|\s+/).map(function(t){var name="",i=t.indexOf(".");if(i>=0)name=t.slice(i+1),t=t.slice(0,i);return{type:t,name:name}})}function onRemove(typename){return function(){var on=this.__on;if(!on)return;for(var j=0,i=-1,m=on.length,o;j<m;++j){if(o=on[j],(!typename.type||o.type===typename.type)&&o.name===typename.name){this.removeEventListener(o.type,o.listener,o.capture)}else{on[++i]=o}}if(++i)on.length=i;else delete this.__on}}function onAdd(typename,value,capture){var wrap=filterEvents.hasOwnProperty(typename.type)?filterContextListener:contextListener;return function(d,i,group){var on=this.__on,o,listener=wrap(value,i,group);if(on)for(var j=0,m=on.length;j<m;++j){if((o=on[j]).type===typename.type&&o.name===typename.name){this.removeEventListener(o.type,o.listener,o.capture);this.addEventListener(o.type,o.listener=listener,o.capture=capture);o.value=value;return}}this.addEventListener(typename.type,listener,capture);o={type:typename.type,name:typename.name,value:value,listener:listener,capture:capture};if(!on)this.__on=[o];else on.push(o)}}function selection_on(typename,value,capture){var typenames=parseTypenames(typename+""),i,n=typenames.length,t;if(arguments.length<2){var on=this.node().__on;if(on)for(var j=0,m=on.length,o;j<m;++j){for(i=0,o=on[j];i<n;++i){if((t=typenames[i]).type===o.type&&t.name===o.name){return o.value}}}return}on=value?onAdd:onRemove;if(capture==null)capture=false;for(i=0;i<n;++i)this.each(on(typenames[i],value,capture));return this}function customEvent(event1,listener,that,args){var event0=exports.event;event1.sourceEvent=exports.event;exports.event=event1;try{return listener.apply(that,args)}finally{exports.event=event0}}function sourceEvent(){var current=exports.event,source;while(source=current.sourceEvent)current=source;return current}function point(node,event){var svg=node.ownerSVGElement||node;if(svg.createSVGPoint){var point=svg.createSVGPoint();point.x=event.clientX,point.y=event.clientY;point=point.matrixTransform(node.getScreenCTM().inverse());return[point.x,point.y]}var rect=node.getBoundingClientRect();return[event.clientX-rect.left-node.clientLeft,event.clientY-rect.top-node.clientTop]}function mouse(node){var event=sourceEvent();if(event.changedTouches)event=event.changedTouches[0];return point(node,event)}function none(){}function selector(selector){return selector==null?none:function(){return this.querySelector(selector)}}function selection_select(select){if(typeof select!=="function")select=selector(select);for(var groups=this._groups,m=groups.length,subgroups=new Array(m),j=0;j<m;++j){for(var group=groups[j],n=group.length,subgroup=subgroups[j]=new Array(n),node,subnode,i=0;i<n;++i){if((node=group[i])&&(subnode=select.call(node,node.__data__,i,group))){if("__data__"in node)subnode.__data__=node.__data__;subgroup[i]=subnode}}}return new Selection(subgroups,this._parents)}function empty(){return[]}function selectorAll(selector){return selector==null?empty:function(){return this.querySelectorAll(selector)}}function selection_selectAll(select){if(typeof select!=="function")select=selectorAll(select);for(var groups=this._groups,m=groups.length,subgroups=[],parents=[],j=0;j<m;++j){for(var group=groups[j],n=group.length,node,i=0;i<n;++i){if(node=group[i]){subgroups.push(select.call(node,node.__data__,i,group));parents.push(node)}}}return new Selection(subgroups,parents)}function selection_filter(match){if(typeof match!=="function")match=matcher$1(match);for(var groups=this._groups,m=groups.length,subgroups=new Array(m),j=0;j<m;++j){for(var group=groups[j],n=group.length,subgroup=subgroups[j]=[],node,i=0;i<n;++i){if((node=group[i])&&match.call(node,node.__data__,i,group)){subgroup.push(node)}}}return new Selection(subgroups,this._parents)}function sparse(update){return new Array(update.length)}function selection_enter(){return new Selection(this._enter||this._groups.map(sparse),this._parents)}function EnterNode(parent,datum){this.ownerDocument=parent.ownerDocument;this.namespaceURI=parent.namespaceURI;this._next=null;this._parent=parent;this.__data__=datum}EnterNode.prototype={constructor:EnterNode,appendChild:function(child){return this._parent.insertBefore(child,this._next)},insertBefore:function(child,next){return this._parent.insertBefore(child,next)},querySelector:function(selector){return this._parent.querySelector(selector)},querySelectorAll:function(selector){return this._parent.querySelectorAll(selector)}};function constant(x){return function(){return x}}var keyPrefix="$";function bindIndex(parent,group,enter,update,exit,data){var i=0,node,groupLength=group.length,dataLength=data.length;for(;i<dataLength;++i){if(node=group[i]){node.__data__=data[i];update[i]=node}else{enter[i]=new EnterNode(parent,data[i])}}for(;i<groupLength;++i){if(node=group[i]){exit[i]=node}}}function bindKey(parent,group,enter,update,exit,data,key){var i,node,nodeByKeyValue={},groupLength=group.length,dataLength=data.length,keyValues=new Array(groupLength),keyValue;for(i=0;i<groupLength;++i){if(node=group[i]){keyValues[i]=keyValue=keyPrefix+key.call(node,node.__data__,i,group);if(keyValue in nodeByKeyValue){exit[i]=node}else{nodeByKeyValue[keyValue]=node}}}for(i=0;i<dataLength;++i){keyValue=keyPrefix+key.call(parent,data[i],i,data);if(node=nodeByKeyValue[keyValue]){update[i]=node;node.__data__=data[i];nodeByKeyValue[keyValue]=null}else{enter[i]=new EnterNode(parent,data[i])}}for(i=0;i<groupLength;++i){if((node=group[i])&&nodeByKeyValue[keyValues[i]]===node){exit[i]=node}}}function selection_data(value,key){if(!value){data=new Array(this.size()),j=-1;this.each(function(d){data[++j]=d});return data}var bind=key?bindKey:bindIndex,parents=this._parents,groups=this._groups;if(typeof value!=="function")value=constant(value);for(var m=groups.length,update=new Array(m),enter=new Array(m),exit=new Array(m),j=0;j<m;++j){var parent=parents[j],group=groups[j],groupLength=group.length,data=value.call(parent,parent&&parent.__data__,j,parents),dataLength=data.length,enterGroup=enter[j]=new Array(dataLength),updateGroup=update[j]=new Array(dataLength),exitGroup=exit[j]=new Array(groupLength);bind(parent,group,enterGroup,updateGroup,exitGroup,data,key);for(var i0=0,i1=0,previous,next;i0<dataLength;++i0){if(previous=enterGroup[i0]){if(i0>=i1)i1=i0+1;while(!(next=updateGroup[i1])&&++i1<dataLength);previous._next=next||null}}}update=new Selection(update,parents);update._enter=enter;update._exit=exit;return update}function selection_exit(){return new Selection(this._exit||this._groups.map(sparse),this._parents)}function selection_merge(selection){for(var groups0=this._groups,groups1=selection._groups,m0=groups0.length,m1=groups1.length,m=Math.min(m0,m1),merges=new Array(m0),j=0;j<m;++j){for(var group0=groups0[j],group1=groups1[j],n=group0.length,merge=merges[j]=new Array(n),node,i=0;i<n;++i){if(node=group0[i]||group1[i]){merge[i]=node}}}for(;j<m0;++j){merges[j]=groups0[j]}return new Selection(merges,this._parents)}function selection_order(){for(var groups=this._groups,j=-1,m=groups.length;++j<m;){for(var group=groups[j],i=group.length-1,next=group[i],node;--i>=0;){if(node=group[i]){if(next&&next!==node.nextSibling)next.parentNode.insertBefore(node,next);next=node}}}return this}function selection_sort(compare){if(!compare)compare=ascending;function compareNode(a,b){return a&&b?compare(a.__data__,b.__data__):!a-!b}for(var groups=this._groups,m=groups.length,sortgroups=new Array(m),j=0;j<m;++j){for(var group=groups[j],n=group.length,sortgroup=sortgroups[j]=new Array(n),node,i=0;i<n;++i){if(node=group[i]){sortgroup[i]=node}}sortgroup.sort(compareNode)}return new Selection(sortgroups,this._parents).order()}function ascending(a,b){return a<b?-1:a>b?1:a>=b?0:NaN}function selection_call(){var callback=arguments[0];arguments[0]=this;callback.apply(null,arguments);return this}function selection_nodes(){var nodes=new Array(this.size()),i=-1;this.each(function(){nodes[++i]=this});return nodes}function selection_node(){for(var groups=this._groups,j=0,m=groups.length;j<m;++j){for(var group=groups[j],i=0,n=group.length;i<n;++i){var node=group[i];if(node)return node}}return null}function selection_size(){var size=0;this.each(function(){++size});return size}function selection_empty(){return!this.node()}function selection_each(callback){for(var groups=this._groups,j=0,m=groups.length;j<m;++j){for(var group=groups[j],i=0,n=group.length,node;i<n;++i){if(node=group[i])callback.call(node,node.__data__,i,group)}}return this}function attrRemove(name){return function(){this.removeAttribute(name)}}function attrRemoveNS(fullname){return function(){this.removeAttributeNS(fullname.space,fullname.local)}}function attrConstant(name,value){return function(){this.setAttribute(name,value)}}function attrConstantNS(fullname,value){return function(){this.setAttributeNS(fullname.space,fullname.local,value)}}function attrFunction(name,value){return function(){var v=value.apply(this,arguments);if(v==null)this.removeAttribute(name);else this.setAttribute(name,v)}}function attrFunctionNS(fullname,value){return function(){var v=value.apply(this,arguments);if(v==null)this.removeAttributeNS(fullname.space,fullname.local);else this.setAttributeNS(fullname.space,fullname.local,v)}}function selection_attr(name,value){var fullname=namespace(name);if(arguments.length<2){var node=this.node();return fullname.local?node.getAttributeNS(fullname.space,fullname.local):node.getAttribute(fullname)}return this.each((value==null?fullname.local?attrRemoveNS:attrRemove:typeof value==="function"?fullname.local?attrFunctionNS:attrFunction:fullname.local?attrConstantNS:attrConstant)(fullname,value))}function defaultView(node){return node.ownerDocument&&node.ownerDocument.defaultView||node.document&&node||node.defaultView}function styleRemove(name){return function(){this.style.removeProperty(name)}}function styleConstant(name,value,priority){return function(){this.style.setProperty(name,value,priority)}}function styleFunction(name,value,priority){return function(){var v=value.apply(this,arguments);if(v==null)this.style.removeProperty(name);else this.style.setProperty(name,v,priority)}}function selection_style(name,value,priority){var node;return arguments.length>1?this.each((value==null?styleRemove:typeof value==="function"?styleFunction:styleConstant)(name,value,priority==null?"":priority)):defaultView(node=this.node()).getComputedStyle(node,null).getPropertyValue(name)}function propertyRemove(name){return function(){delete this[name]}}function propertyConstant(name,value){return function(){this[name]=value}}function propertyFunction(name,value){return function(){var v=value.apply(this,arguments);if(v==null)delete this[name];else this[name]=v}}function selection_property(name,value){return arguments.length>1?this.each((value==null?propertyRemove:typeof value==="function"?propertyFunction:propertyConstant)(name,value)):this.node()[name]}function classArray(string){return string.trim().split(/^|\s+/)}function classList(node){return node.classList||new ClassList(node)}function ClassList(node){this._node=node;this._names=classArray(node.getAttribute("class")||"")}ClassList.prototype={add:function(name){var i=this._names.indexOf(name);if(i<0){this._names.push(name);this._node.setAttribute("class",this._names.join(" "))}},remove:function(name){var i=this._names.indexOf(name);if(i>=0){this._names.splice(i,1);this._node.setAttribute("class",this._names.join(" "))}},contains:function(name){return this._names.indexOf(name)>=0}};function classedAdd(node,names){var list=classList(node),i=-1,n=names.length;while(++i<n)list.add(names[i])}function classedRemove(node,names){var list=classList(node),i=-1,n=names.length;while(++i<n)list.remove(names[i])}function classedTrue(names){return function(){classedAdd(this,names)}}function classedFalse(names){return function(){classedRemove(this,names)}}function classedFunction(names,value){return function(){(value.apply(this,arguments)?classedAdd:classedRemove)(this,names)}}function selection_classed(name,value){var names=classArray(name+"");if(arguments.length<2){var list=classList(this.node()),i=-1,n=names.length;while(++i<n)if(!list.contains(names[i]))return false;return true}return this.each((typeof value==="function"?classedFunction:value?classedTrue:classedFalse)(names,value))}function textRemove(){this.textContent=""}function textConstant(value){return function(){this.textContent=value}}function textFunction(value){return function(){var v=value.apply(this,arguments);this.textContent=v==null?"":v}}function selection_text(value){return arguments.length?this.each(value==null?textRemove:(typeof value==="function"?textFunction:textConstant)(value)):this.node().textContent}function htmlRemove(){this.innerHTML=""}function htmlConstant(value){return function(){this.innerHTML=value}}function htmlFunction(value){return function(){var v=value.apply(this,arguments);this.innerHTML=v==null?"":v}}function selection_html(value){return arguments.length?this.each(value==null?htmlRemove:(typeof value==="function"?htmlFunction:htmlConstant)(value)):this.node().innerHTML}function raise(){if(this.nextSibling)this.parentNode.appendChild(this)}function selection_raise(){return this.each(raise)}function lower(){if(this.previousSibling)this.parentNode.insertBefore(this,this.parentNode.firstChild)}function selection_lower(){return this.each(lower)}function selection_append(name){var create=typeof name==="function"?name:creator(name);return this.select(function(){return this.appendChild(create.apply(this,arguments))})}function constantNull(){return null}function selection_insert(name,before){var create=typeof name==="function"?name:creator(name),select=before==null?constantNull:typeof before==="function"?before:selector(before);return this.select(function(){return this.insertBefore(create.apply(this,arguments),select.apply(this,arguments)||null)})}function remove(){var parent=this.parentNode;if(parent)parent.removeChild(this)}function selection_remove(){return this.each(remove)}function selection_datum(value){return arguments.length?this.property("__data__",value):this.node().__data__}function dispatchEvent(node,type,params){var window=defaultView(node),event=window.CustomEvent;if(event){event=new event(type,params)}else{event=window.document.createEvent("Event");if(params)event.initEvent(type,params.bubbles,params.cancelable),event.detail=params.detail;else event.initEvent(type,false,false)}node.dispatchEvent(event)}function dispatchConstant(type,params){return function(){return dispatchEvent(this,type,params)}}function dispatchFunction(type,params){return function(){return dispatchEvent(this,type,params.apply(this,arguments))}}function selection_dispatch(type,params){return this.each((typeof params==="function"?dispatchFunction:dispatchConstant)(type,params))}var root=[null];function Selection(groups,parents){this._groups=groups;this._parents=parents}function selection(){return new Selection([[document.documentElement]],root)}Selection.prototype=selection.prototype={constructor:Selection,select:selection_select,selectAll:selection_selectAll,filter:selection_filter,data:selection_data,enter:selection_enter,exit:selection_exit,merge:selection_merge,order:selection_order,sort:selection_sort,call:selection_call,nodes:selection_nodes,node:selection_node,size:selection_size,empty:selection_empty,each:selection_each,attr:selection_attr,style:selection_style,property:selection_property,classed:selection_classed,text:selection_text,html:selection_html,raise:selection_raise,lower:selection_lower,append:selection_append,insert:selection_insert,remove:selection_remove,datum:selection_datum,on:selection_on,dispatch:selection_dispatch};function select(selector){return typeof selector==="string"?new Selection([[document.querySelector(selector)]],[document.documentElement]):new Selection([[selector]],root)}function selectAll(selector){return typeof selector==="string"?new Selection([document.querySelectorAll(selector)],[document.documentElement]):new Selection([selector==null?[]:selector],root)}function touch(node,touches,identifier){if(arguments.length<3)identifier=touches,touches=sourceEvent().changedTouches;for(var i=0,n=touches?touches.length:0,touch;i<n;++i){if((touch=touches[i]).identifier===identifier){return point(node,touch)}}return null}function touches(node,touches){if(touches==null)touches=sourceEvent().touches;
for(var i=0,n=touches?touches.length:0,points=new Array(n);i<n;++i){points[i]=point(node,touches[i])}return points}exports.creator=creator;exports.local=local;exports.matcher=matcher$1;exports.mouse=mouse;exports.namespace=namespace;exports.namespaces=namespaces;exports.select=select;exports.selectAll=selectAll;exports.selection=selection;exports.selector=selector;exports.selectorAll=selectorAll;exports.touch=touch;exports.touches=touches;exports.window=defaultView;exports.customEvent=customEvent;Object.defineProperty(exports,"__esModule",{value:true})})},{}],16:[function(require,module,exports){"use strict";var util=require("../util/util");module.exports=ArrayGroup;function ArrayGroup(arrayTypes){var LayoutVertexArrayType=arrayTypes.layoutVertexArrayType;this.layoutVertexArray=new LayoutVertexArrayType;var ElementArrayType=arrayTypes.elementArrayType;if(ElementArrayType)this.elementArray=new ElementArrayType;var ElementArrayType2=arrayTypes.elementArrayType2;if(ElementArrayType2)this.elementArray2=new ElementArrayType2;this.paintVertexArrays=util.mapObject(arrayTypes.paintVertexArrayTypes,function(PaintVertexArrayType){return new PaintVertexArrayType})}ArrayGroup.MAX_VERTEX_ARRAY_LENGTH=Math.pow(2,16)-1;ArrayGroup.prototype.hasCapacityFor=function(numVertices){return this.layoutVertexArray.length+numVertices<=ArrayGroup.MAX_VERTEX_ARRAY_LENGTH};ArrayGroup.prototype.isEmpty=function(){return this.layoutVertexArray.length===0};ArrayGroup.prototype.trim=function(){this.layoutVertexArray.trim();if(this.elementArray){this.elementArray.trim()}if(this.elementArray2){this.elementArray2.trim()}for(var layerName in this.paintVertexArrays){this.paintVertexArrays[layerName].trim()}};ArrayGroup.prototype.serialize=function(){return{layoutVertexArray:this.layoutVertexArray.serialize(),elementArray:this.elementArray&&this.elementArray.serialize(),elementArray2:this.elementArray2&&this.elementArray2.serialize(),paintVertexArrays:util.mapObject(this.paintVertexArrays,function(array){return array.serialize()})}};ArrayGroup.prototype.getTransferables=function(transferables){transferables.push(this.layoutVertexArray.arrayBuffer);if(this.elementArray){transferables.push(this.elementArray.arrayBuffer)}if(this.elementArray2){transferables.push(this.elementArray2.arrayBuffer)}for(var layerName in this.paintVertexArrays){transferables.push(this.paintVertexArrays[layerName].arrayBuffer)}}},{"../util/util":137}],17:[function(require,module,exports){"use strict";var ArrayGroup=require("./array_group");var BufferGroup=require("./buffer_group");var util=require("../util/util");var StructArrayType=require("../util/struct_array");module.exports=Bucket;Bucket.create=function(options){var Classes={fill:require("./bucket/fill_bucket"),fillextrusion:require("./bucket/fill_extrusion_bucket"),line:require("./bucket/line_bucket"),circle:require("./bucket/circle_bucket"),symbol:require("./bucket/symbol_bucket")};var type=options.layer.type;if(type==="fill"&&(!options.layer.isPaintValueFeatureConstant("fill-extrude-height")||!options.layer.isPaintValueZoomConstant("fill-extrude-height")||options.layer.getPaintValue("fill-extrude-height")!==0)){type="fillextrusion"}return new Classes[type](options)};Bucket.EXTENT=8192;function Bucket(options){this.zoom=options.zoom;this.overscaling=options.overscaling;this.layer=options.layer;this.childLayers=options.childLayers;this.type=this.layer.type;this.features=[];this.id=this.layer.id;this.index=options.index;this.sourceLayer=this.layer.sourceLayer;this.sourceLayerIndex=options.sourceLayerIndex;this.minZoom=this.layer.minzoom;this.maxZoom=this.layer.maxzoom;this.paintAttributes=createPaintAttributes(this);if(options.arrays){var programInterfaces=this.programInterfaces;this.bufferGroups=util.mapObject(options.arrays,function(programArrayGroups,programName){var programInterface=programInterfaces[programName];var paintVertexArrayTypes=options.paintVertexArrayTypes[programName];return programArrayGroups.map(function(arrayGroup){return new BufferGroup(arrayGroup,{layoutVertexArrayType:programInterface.layoutVertexArrayType.serialize(),elementArrayType:programInterface.elementArrayType&&programInterface.elementArrayType.serialize(),elementArrayType2:programInterface.elementArrayType2&&programInterface.elementArrayType2.serialize(),paintVertexArrayTypes:paintVertexArrayTypes})})})}}Bucket.prototype.populateArrays=function(){this.createArrays();this.recalculateStyleLayers();for(var i=0;i<this.features.length;i++){this.addFeature(this.features[i])}this.trimArrays()};Bucket.prototype.prepareArrayGroup=function(programName,numVertices){var groups=this.arrayGroups[programName];var currentGroup=groups.length&&groups[groups.length-1];if(!currentGroup||!currentGroup.hasCapacityFor(numVertices)){currentGroup=new ArrayGroup({layoutVertexArrayType:this.programInterfaces[programName].layoutVertexArrayType,elementArrayType:this.programInterfaces[programName].elementArrayType,elementArrayType2:this.programInterfaces[programName].elementArrayType2,paintVertexArrayTypes:this.paintVertexArrayTypes[programName]});currentGroup.index=groups.length;groups.push(currentGroup)}return currentGroup};Bucket.prototype.createArrays=function(){this.arrayGroups={};this.paintVertexArrayTypes={};for(var programName in this.programInterfaces){this.arrayGroups[programName]=[];var paintVertexArrayTypes=this.paintVertexArrayTypes[programName]={};var layerPaintAttributes=this.paintAttributes[programName];for(var layerName in layerPaintAttributes){paintVertexArrayTypes[layerName]=new Bucket.VertexArrayType(layerPaintAttributes[layerName].attributes)}}};Bucket.prototype.destroy=function(){for(var programName in this.bufferGroups){var programBufferGroups=this.bufferGroups[programName];for(var i=0;i<programBufferGroups.length;i++){programBufferGroups[i].destroy()}}};Bucket.prototype.trimArrays=function(){for(var programName in this.arrayGroups){var arrayGroups=this.arrayGroups[programName];for(var i=0;i<arrayGroups.length;i++){arrayGroups[i].trim()}}};Bucket.prototype.isEmpty=function(){for(var programName in this.arrayGroups){var arrayGroups=this.arrayGroups[programName];for(var i=0;i<arrayGroups.length;i++){if(!arrayGroups[i].isEmpty()){return false}}}return true};Bucket.prototype.getTransferables=function(transferables){for(var programName in this.arrayGroups){var arrayGroups=this.arrayGroups[programName];for(var i=0;i<arrayGroups.length;i++){arrayGroups[i].getTransferables(transferables)}}};Bucket.prototype.setUniforms=function(gl,programName,program,layer,globalProperties){var uniforms=this.paintAttributes[programName][layer.id].uniforms;for(var i=0;i<uniforms.length;i++){var uniform=uniforms[i];var uniformLocation=program[uniform.name];gl["uniform"+uniform.components+"fv"](uniformLocation,uniform.getValue(layer,globalProperties))}};Bucket.prototype.serialize=function(){return{layerId:this.layer.id,zoom:this.zoom,arrays:util.mapObject(this.arrayGroups,function(programArrayGroups){return programArrayGroups.map(function(arrayGroup){return arrayGroup.serialize()})}),paintVertexArrayTypes:util.mapObject(this.paintVertexArrayTypes,function(arrayTypes){return util.mapObject(arrayTypes,function(arrayType){return arrayType.serialize()})}),childLayerIds:this.childLayers.map(function(layer){return layer.id})}};var FAKE_ZOOM_HISTORY={lastIntegerZoom:Infinity,lastIntegerZoomTime:0,lastZoom:0};Bucket.prototype.recalculateStyleLayers=function(){for(var i=0;i<this.childLayers.length;i++){this.childLayers[i].recalculate(this.zoom,FAKE_ZOOM_HISTORY)}};Bucket.prototype.populatePaintArrays=function(interfaceName,globalProperties,featureProperties,startGroup,startIndex){for(var l=0;l<this.childLayers.length;l++){var layer=this.childLayers[l];var groups=this.arrayGroups[interfaceName];for(var g=startGroup.index;g<groups.length;g++){var group=groups[g];var length=group.layoutVertexArray.length;var paintArray=group.paintVertexArrays[layer.id];paintArray.resize(length);var attributes=this.paintAttributes[interfaceName][layer.id].attributes;for(var m=0;m<attributes.length;m++){var attribute=attributes[m];var value=attribute.getValue(layer,globalProperties,featureProperties);var multiplier=attribute.multiplier||1;var components=attribute.components||1;var start=g===startGroup.index?startIndex:0;for(var i=start;i<length;i++){var vertex=paintArray.get(i);for(var c=0;c<components;c++){var memberName=components>1?attribute.name+c:attribute.name;vertex[memberName]=value[c]*multiplier}}}}}};Bucket.VertexArrayType=function(members){return new StructArrayType({members:members,alignment:4})};Bucket.ElementArrayType=function(components){return new StructArrayType({members:[{type:"Uint16",name:"vertices",components:components||3}]})};function createPaintAttributes(bucket){var attributes={};for(var interfaceName in bucket.programInterfaces){var layerPaintAttributes=attributes[interfaceName]={};for(var c=0;c<bucket.childLayers.length;c++){var childLayer=bucket.childLayers[c];layerPaintAttributes[childLayer.id]={attributes:[],uniforms:[],defines:[],vertexPragmas:{define:{},initialize:{}},fragmentPragmas:{define:{},initialize:{}}}}var interface_=bucket.programInterfaces[interfaceName];if(!interface_.paintAttributes)continue;var attributePrecision="{precision}";var attributeType="{type}";for(var i=0;i<interface_.paintAttributes.length;i++){var attribute=interface_.paintAttributes[i];attribute.multiplier=attribute.multiplier||1;for(var j=0;j<bucket.childLayers.length;j++){var layer=bucket.childLayers[j];var paintAttributes=layerPaintAttributes[layer.id];var attributeInputName=attribute.name;var attributeInnerName=attribute.name.slice(2);var attributeVaryingDefinition;paintAttributes.fragmentPragmas.initialize[attributeInnerName]="";if(layer.isPaintValueFeatureConstant(attribute.paintProperty)){paintAttributes.uniforms.push(attribute);paintAttributes.fragmentPragmas.define[attributeInnerName]=paintAttributes.vertexPragmas.define[attributeInnerName]=["uniform",attributePrecision,attributeType,attributeInputName].join(" ")+";";paintAttributes.fragmentPragmas.initialize[attributeInnerName]=paintAttributes.vertexPragmas.initialize[attributeInnerName]=[attributePrecision,attributeType,attributeInnerName,"=",attributeInputName].join(" ")+";\n"}else if(layer.isPaintValueZoomConstant(attribute.paintProperty)){paintAttributes.attributes.push(util.extend({},attribute,{name:attributeInputName}));attributeVaryingDefinition=["varying",attributePrecision,attributeType,attributeInnerName].join(" ")+";\n";var attributeAttributeDefinition=[paintAttributes.fragmentPragmas.define[attributeInnerName],"attribute",attributePrecision,attributeType,attributeInputName].join(" ")+";\n";paintAttributes.fragmentPragmas.define[attributeInnerName]=attributeVaryingDefinition;paintAttributes.vertexPragmas.define[attributeInnerName]=attributeVaryingDefinition+attributeAttributeDefinition;paintAttributes.vertexPragmas.initialize[attributeInnerName]=[attributeInnerName,"=",attributeInputName,"/",attribute.multiplier.toFixed(1)].join(" ")+";\n"}else{var tName="u_"+attributeInputName.slice(2)+"_t";var zoomLevels=layer.getPaintValueStopZoomLevels(attribute.paintProperty);var numStops=0;while(numStops<zoomLevels.length&&zoomLevels[numStops]<bucket.zoom)numStops++;var stopOffset=Math.max(0,Math.min(zoomLevels.length-4,numStops-2));var fourZoomLevels=[];for(var s=0;s<4;s++){fourZoomLevels.push(zoomLevels[Math.min(stopOffset+s,zoomLevels.length-1)])}attributeVaryingDefinition=["varying",attributePrecision,attributeType,attributeInnerName].join(" ")+";\n";paintAttributes.vertexPragmas.define[attributeInnerName]=attributeVaryingDefinition+["uniform","lowp","float",tName].join(" ")+";\n";paintAttributes.fragmentPragmas.define[attributeInnerName]=attributeVaryingDefinition;paintAttributes.uniforms.push(util.extend({},attribute,{name:tName,getValue:createGetUniform(attribute,stopOffset),components:1}));var components=attribute.components;if(components===1){paintAttributes.attributes.push(util.extend({},attribute,{getValue:createFunctionGetValue(attribute,fourZoomLevels),isFunction:true,components:components*4}));paintAttributes.vertexPragmas.define[attributeInnerName]+=["attribute",attributePrecision,"vec4",attributeInputName].join(" ")+";\n";paintAttributes.vertexPragmas.initialize[attributeInnerName]=[attributeInnerName,"=","evaluate_zoom_function_1("+attributeInputName+", "+tName+")","/",attribute.multiplier.toFixed(1)].join(" ")+";\n"}else{var attributeInputNames=[];for(var k=0;k<4;k++){attributeInputNames.push(attributeInputName+k);paintAttributes.attributes.push(util.extend({},attribute,{getValue:createFunctionGetValue(attribute,[fourZoomLevels[k]]),isFunction:true,name:attributeInputName+k}));paintAttributes.vertexPragmas.define[attributeInnerName]+=["attribute",attributePrecision,attributeType,attributeInputName+k].join(" ")+";\n"}paintAttributes.vertexPragmas.initialize[attributeInnerName]=[attributeInnerName," = ","evaluate_zoom_function_4("+attributeInputNames.join(", ")+", "+tName+")","/",attribute.multiplier.toFixed(1)].join(" ")+";\n"}}}}}return attributes}function createFunctionGetValue(attribute,stopZoomLevels){return function(layer,globalProperties,featureProperties){if(stopZoomLevels.length===1){return attribute.getValue(layer,util.extend({},globalProperties,{zoom:stopZoomLevels[0]}),featureProperties)}else{var values=[];for(var z=0;z<stopZoomLevels.length;z++){var stopZoomLevel=stopZoomLevels[z];values.push(attribute.getValue(layer,util.extend({},globalProperties,{zoom:stopZoomLevel}),featureProperties)[0])}return values}}}function createGetUniform(attribute,stopOffset){return function(layer,globalProperties){var stopInterp=layer.getPaintInterpolationT(attribute.paintProperty,globalProperties.zoom);return[Math.max(0,Math.min(4,stopInterp-stopOffset))]}}},{"../util/struct_array":135,"../util/util":137,"./array_group":16,"./bucket/circle_bucket":18,"./bucket/fill_bucket":19,"./bucket/fill_extrusion_bucket":20,"./bucket/line_bucket":21,"./bucket/symbol_bucket":22,"./buffer_group":24}],18:[function(require,module,exports){"use strict";var Bucket=require("../bucket");var util=require("../../util/util");var loadGeometry=require("../load_geometry");var EXTENT=Bucket.EXTENT;module.exports=CircleBucket;function CircleBucket(){Bucket.apply(this,arguments)}CircleBucket.prototype=util.inherit(Bucket,{});CircleBucket.prototype.addCircleVertex=function(layoutVertexArray,x,y,extrudeX,extrudeY){return layoutVertexArray.emplaceBack(x*2+(extrudeX+1)/2,y*2+(extrudeY+1)/2)};CircleBucket.prototype.programInterfaces={circle:{layoutVertexArrayType:new Bucket.VertexArrayType([{name:"a_pos",components:2,type:"Int16"}]),elementArrayType:new Bucket.ElementArrayType,paintAttributes:[{name:"a_color",components:4,type:"Uint8",getValue:function(layer,globalProperties,featureProperties){return layer.getPaintValue("circle-color",globalProperties,featureProperties)},multiplier:255,paintProperty:"circle-color"},{name:"a_radius",components:1,type:"Uint16",isLayerConstant:false,getValue:function(layer,globalProperties,featureProperties){return[layer.getPaintValue("circle-radius",globalProperties,featureProperties)]},multiplier:10,paintProperty:"circle-radius"},{name:"a_blur",components:1,type:"Uint16",isLayerConstant:false,getValue:function(layer,globalProperties,featureProperties){return[layer.getPaintValue("circle-blur",globalProperties,featureProperties)]},multiplier:10,paintProperty:"circle-blur"},{name:"a_opacity",components:1,type:"Uint16",isLayerConstant:false,getValue:function(layer,globalProperties,featureProperties){return[layer.getPaintValue("circle-opacity",globalProperties,featureProperties)]},multiplier:255,paintProperty:"circle-opacity"}]}};CircleBucket.prototype.addFeature=function(feature){var globalProperties={zoom:this.zoom};var geometries=loadGeometry(feature);var startGroup=this.prepareArrayGroup("circle",0);var startIndex=startGroup.layoutVertexArray.length;for(var j=0;j<geometries.length;j++){for(var k=0;k<geometries[j].length;k++){var x=geometries[j][k].x;var y=geometries[j][k].y;if(x<0||x>=EXTENT||y<0||y>=EXTENT)continue;var group=this.prepareArrayGroup("circle",4);var layoutVertexArray=group.layoutVertexArray;var index=this.addCircleVertex(layoutVertexArray,x,y,-1,-1);this.addCircleVertex(layoutVertexArray,x,y,1,-1);this.addCircleVertex(layoutVertexArray,x,y,1,1);this.addCircleVertex(layoutVertexArray,x,y,-1,1);group.elementArray.emplaceBack(index,index+1,index+2);group.elementArray.emplaceBack(index,index+3,index+2)}}this.populatePaintArrays("circle",globalProperties,feature.properties,startGroup,startIndex)}},{"../../util/util":137,"../bucket":17,"../load_geometry":26}],19:[function(require,module,exports){"use strict";var Bucket=require("../bucket");var util=require("../../util/util");var loadGeometry=require("../load_geometry");var earcut=require("earcut");var classifyRings=require("../../util/classify_rings");var Point=require("point-geometry");var EARCUT_MAX_RINGS=500;module.exports=FillBucket;function FillBucket(){Bucket.apply(this,arguments)}FillBucket.prototype=util.inherit(Bucket,{});FillBucket.prototype.programInterfaces={fill:{layoutVertexArrayType:new Bucket.VertexArrayType([{name:"a_pos",components:2,type:"Int16"}]),elementArrayType:new Bucket.ElementArrayType(1),elementArrayType2:new Bucket.ElementArrayType(2),paintAttributes:[{name:"a_color",components:4,type:"Uint8",getValue:function(layer,globalProperties,featureProperties){return layer.getPaintValue("fill-color",globalProperties,featureProperties)},multiplier:255,paintProperty:"fill-color"},{name:"a_outline_color",components:4,type:"Uint8",getValue:function(layer,globalProperties,featureProperties){return layer.getPaintValue("fill-outline-color",globalProperties,featureProperties)},multiplier:255,paintProperty:"fill-outline-color"},{name:"a_opacity",components:1,type:"Uint8",getValue:function(layer,globalProperties,featureProperties){return[layer.getPaintValue("fill-opacity",globalProperties,featureProperties)]},multiplier:255,paintProperty:"fill-opacity"}]}};FillBucket.prototype.addVertex=function(vertexArray,x,y){return vertexArray.emplaceBack(x,y)};FillBucket.prototype.addFeature=function(feature){var lines=loadGeometry(feature);var polygons=convertCoords(classifyRings(lines,EARCUT_MAX_RINGS));this.factor=Math.pow(2,13);var startGroup=this.prepareArrayGroup("fill",0);var startIndex=startGroup.layoutVertexArray.length;for(var i=0;i<polygons.length;i++){this.addPolygon(polygons[i])}this.populatePaintArrays("fill",{zoom:this.zoom},feature.properties,startGroup,startIndex)};FillBucket.prototype.addPolygon=function(polygon){var numVertices=0;for(var k=0;k<polygon.length;k++){numVertices+=polygon[k].length}var group=this.prepareArrayGroup("fill",numVertices);var flattened=[];var holeIndices=[];var startIndex=group.layoutVertexArray.length;var indices=[];for(var r=0;r<polygon.length;r++){var ring=polygon[r];if(r>0)holeIndices.push(flattened.length/2);for(var v=0;v<ring.length;v++){var v1=ring[v];var index=this.addVertex(group.layoutVertexArray,v1[0],v1[1],0,0,1,1,0);indices.push(index);if(v>=1){group.elementArray2.emplaceBack(index-1,index)}flattened.push(v1[0]);flattened.push(v1[1])}}var triangleIndices=earcut(flattened,holeIndices);for(var i=0;i<triangleIndices.length;i++){group.elementArray.emplaceBack(triangleIndices[i]+startIndex)}};function convertCoords(rings){if(rings instanceof Point)return[rings.x,rings.y];return rings.map(convertCoords)}},{"../../util/classify_rings":123,"../../util/util":137,"../bucket":17,"../load_geometry":26,earcut:141,"point-geometry":196}],20:[function(require,module,exports){"use strict";var Bucket=require("../bucket");var util=require("../../util/util");var loadGeometry=require("../load_geometry");var earcut=require("earcut");var classifyRings=require("../../util/classify_rings");var Point=require("point-geometry");var EARCUT_MAX_RINGS=500;module.exports=FillExtrusionBucket;function FillExtrusionBucket(){Bucket.apply(this,arguments)}FillExtrusionBucket.prototype=util.inherit(Bucket,{});FillExtrusionBucket.prototype.programInterfaces={fillextrusion:{layoutVertexArrayType:new Bucket.VertexArrayType([{name:"a_pos",components:2,type:"Int16"},{name:"a_normal",components:3,type:"Int16"},{name:"a_edgedistance",components:1,type:"Int16"}]),elementArrayType:new Bucket.ElementArrayType(3),paintAttributes:[{name:"a_minH",components:1,type:"Uint16",getValue:function(layer,globalProperties,featureProperties){return[layer.getPaintValue("fill-extrude-base",globalProperties,featureProperties)]},multiplier:1,paintProperty:"fill-extrude-base"},{name:"a_maxH",components:1,type:"Uint16",getValue:function(layer,globalProperties,featureProperties){return[layer.getPaintValue("fill-extrude-height",globalProperties,featureProperties)]},multiplier:1,paintProperty:"fill-extrude-height"},{name:"a_color",components:4,type:"Uint8",getValue:function(layer,globalProperties,featureProperties){var color=layer.getPaintValue("fill-color",globalProperties,featureProperties);color[3]=1;return color},multiplier:255,paintProperty:"fill-color"}]}};FillExtrusionBucket.prototype.addVertex=function(vertexArray,x,y,nx,ny,nz,t,e){return vertexArray.emplaceBack(x,y,Math.floor(nx*this.factor)*2+t,ny*this.factor*2,nz*this.factor*2,Math.round(e))};FillExtrusionBucket.prototype.addFeature=function(feature){var lines=loadGeometry(feature);var polygons=convertCoords(classifyRings(lines,EARCUT_MAX_RINGS));this.factor=Math.pow(2,13);var startGroup=this.prepareArrayGroup("fillextrusion",0);var startIndex=startGroup.layoutVertexArray.length;for(var i=0;i<polygons.length;i++){this.addPolygon(polygons[i])}this.populatePaintArrays("fillextrusion",{zoom:this.zoom},feature.properties,startGroup,startIndex)};FillExtrusionBucket.prototype.addPolygon=function(polygon){var numVertices=0;for(var k=0;k<polygon.length;k++){numVertices+=polygon[k].length}numVertices*=5;var group=this.prepareArrayGroup("fillextrusion",numVertices);var flattened=[];var holeIndices=[];var indices=[];for(var r=0;r<polygon.length;r++){var ring=polygon[r];if(r>0)holeIndices.push(flattened.length/2);var edgeDistance=0;for(var v=0;v<ring.length;v++){var v1=ring[v];var index=this.addVertex(group.layoutVertexArray,v1[0],v1[1],0,0,1,1,0);indices.push(index);if(v>=1){var v2=ring[v-1];if(!isBoundaryEdge(v1,v2)){var perp=Point.convert(v1)._sub(Point.convert(v2))._perp()._unit();var bottomRight=this.addVertex(group.layoutVertexArray,v1[0],v1[1],perp.x,perp.y,0,0,edgeDistance);this.addVertex(group.layoutVertexArray,v1[0],v1[1],perp.x,perp.y,0,1,edgeDistance);edgeDistance+=Point.convert(v2).dist(Point.convert(v1));this.addVertex(group.layoutVertexArray,v2[0],v2[1],perp.x,perp.y,0,0,edgeDistance);this.addVertex(group.layoutVertexArray,v2[0],v2[1],perp.x,perp.y,0,1,edgeDistance);group.elementArray.emplaceBack(bottomRight,bottomRight+1,bottomRight+2);group.elementArray.emplaceBack(bottomRight+1,bottomRight+2,bottomRight+3)}}flattened.push(v1[0]);flattened.push(v1[1])}}var triangleIndices=earcut(flattened,holeIndices);for(var j=0;j<triangleIndices.length-2;j+=3){group.elementArray.emplaceBack(indices[triangleIndices[j]],indices[triangleIndices[j+1]],indices[triangleIndices[j+2]])}};function convertCoords(rings){if(rings instanceof Point)return[rings.x,rings.y];return rings.map(convertCoords)}function isBoundaryEdge(v1,v2){return v1.some(function(a,i){return isOutside(v2[i])&&v2[i]===a})}function isOutside(coord){return coord<0||coord>Bucket.EXTENT}},{"../../util/classify_rings":123,"../../util/util":137,"../bucket":17,"../load_geometry":26,earcut:141,"point-geometry":196}],21:[function(require,module,exports){"use strict";var Bucket=require("../bucket");var util=require("../../util/util");var loadGeometry=require("../load_geometry");var EXTENT=Bucket.EXTENT;var EXTRUDE_SCALE=63;var COS_HALF_SHARP_CORNER=Math.cos(75/2*(Math.PI/180));var SHARP_CORNER_OFFSET=15;var LINE_DISTANCE_BUFFER_BITS=15;var LINE_DISTANCE_SCALE=1/2;var MAX_LINE_DISTANCE=Math.pow(2,LINE_DISTANCE_BUFFER_BITS-1)/LINE_DISTANCE_SCALE;module.exports=LineBucket;function LineBucket(){Bucket.apply(this,arguments)}LineBucket.prototype=util.inherit(Bucket,{});LineBucket.prototype.addLineVertex=function(layoutVertexBuffer,point,extrude,tx,ty,dir,linesofar){return layoutVertexBuffer.emplaceBack(point.x<<1|tx,point.y<<1|ty,Math.round(EXTRUDE_SCALE*extrude.x)+128,Math.round(EXTRUDE_SCALE*extrude.y)+128,(dir===0?0:dir<0?-1:1)+1|(linesofar*LINE_DISTANCE_SCALE&63)<<2,linesofar*LINE_DISTANCE_SCALE>>6)};LineBucket.prototype.programInterfaces={line:{layoutVertexArrayType:new Bucket.VertexArrayType([{name:"a_pos",components:2,type:"Int16"},{name:"a_data",components:4,type:"Uint8"}]),paintAttributes:[{name:"a_color",components:4,type:"Uint8",getValue:function(layer,globalProperties,featureProperties){return layer.getPaintValue("line-color",globalProperties,featureProperties)},multiplier:255,paintProperty:"line-color"}],elementArrayType:new Bucket.ElementArrayType}};LineBucket.prototype.addFeature=function(feature){var lines=loadGeometry(feature,LINE_DISTANCE_BUFFER_BITS);for(var i=0;i<lines.length;i++){this.addLine(lines[i],feature.properties,this.layer.layout["line-join"],this.layer.layout["line-cap"],this.layer.layout["line-miter-limit"],this.layer.layout["line-round-limit"])}};LineBucket.prototype.addLine=function(vertices,featureProperties,join,cap,miterLimit,roundLimit){var len=vertices.length;while(len>2&&vertices[len-1].equals(vertices[len-2])){len--}if(vertices.length<2)return;if(join==="bevel")miterLimit=1.05;var sharpCornerOffset=SHARP_CORNER_OFFSET*(EXTENT/(512*this.overscaling));var firstVertex=vertices[0],lastVertex=vertices[len-1],closed=firstVertex.equals(lastVertex);var group=this.prepareArrayGroup("line",len*10);var startIndex=group.layoutVertexArray.length;if(len===2&&closed)return;this.distance=0;var beginCap=cap,endCap=closed?"butt":cap,startOfLine=true,currentVertex,prevVertex,nextVertex,prevNormal,nextNormal,offsetA,offsetB;this.e1=this.e2=this.e3=-1;if(closed){currentVertex=vertices[len-2];nextNormal=firstVertex.sub(currentVertex)._unit()._perp()}for(var i=0;i<len;i++){nextVertex=closed&&i===len-1?vertices[1]:vertices[i+1];if(nextVertex&&vertices[i].equals(nextVertex))continue;if(nextNormal)prevNormal=nextNormal;if(currentVertex)prevVertex=currentVertex;currentVertex=vertices[i];nextNormal=nextVertex?nextVertex.sub(currentVertex)._unit()._perp():prevNormal;prevNormal=prevNormal||nextNormal;var joinNormal=prevNormal.add(nextNormal)._unit();var cosHalfAngle=joinNormal.x*nextNormal.x+joinNormal.y*nextNormal.y;var miterLength=1/cosHalfAngle;var isSharpCorner=cosHalfAngle<COS_HALF_SHARP_CORNER&&prevVertex&&nextVertex;if(isSharpCorner&&i>0){var prevSegmentLength=currentVertex.dist(prevVertex);if(prevSegmentLength>2*sharpCornerOffset){var newPrevVertex=currentVertex.sub(currentVertex.sub(prevVertex)._mult(sharpCornerOffset/prevSegmentLength)._round());this.distance+=newPrevVertex.dist(prevVertex);this.addCurrentVertex(newPrevVertex,this.distance,prevNormal.mult(1),0,0,false);prevVertex=newPrevVertex}}var middleVertex=prevVertex&&nextVertex;var currentJoin=middleVertex?join:nextVertex?beginCap:endCap;if(middleVertex&&currentJoin==="round"){if(miterLength<roundLimit){currentJoin="miter"}else if(miterLength<=2){currentJoin="fakeround"}}if(currentJoin==="miter"&&miterLength>miterLimit){currentJoin="bevel"}if(currentJoin==="bevel"){if(miterLength>2)currentJoin="flipbevel";if(miterLength<miterLimit)currentJoin="miter"}if(prevVertex)this.distance+=currentVertex.dist(prevVertex);if(currentJoin==="miter"){joinNormal._mult(miterLength);this.addCurrentVertex(currentVertex,this.distance,joinNormal,0,0,false)}else if(currentJoin==="flipbevel"){if(miterLength>100){joinNormal=nextNormal.clone()}else{var direction=prevNormal.x*nextNormal.y-prevNormal.y*nextNormal.x>0?-1:1;var bevelLength=miterLength*prevNormal.add(nextNormal).mag()/prevNormal.sub(nextNormal).mag();joinNormal._perp()._mult(bevelLength*direction)}this.addCurrentVertex(currentVertex,this.distance,joinNormal,0,0,false);this.addCurrentVertex(currentVertex,this.distance,joinNormal.mult(-1),0,0,false)}else if(currentJoin==="bevel"||currentJoin==="fakeround"){var lineTurnsLeft=prevNormal.x*nextNormal.y-prevNormal.y*nextNormal.x>0;var offset=-Math.sqrt(miterLength*miterLength-1);if(lineTurnsLeft){offsetB=0;offsetA=offset}else{offsetA=0;offsetB=offset}if(!startOfLine){this.addCurrentVertex(currentVertex,this.distance,prevNormal,offsetA,offsetB,false)}if(currentJoin==="fakeround"){var n=Math.floor((.5-(cosHalfAngle-.5))*8);var approxFractionalJoinNormal;for(var m=0;m<n;m++){approxFractionalJoinNormal=nextNormal.mult((m+1)/(n+1))._add(prevNormal)._unit();this.addPieSliceVertex(currentVertex,this.distance,approxFractionalJoinNormal,lineTurnsLeft)}this.addPieSliceVertex(currentVertex,this.distance,joinNormal,lineTurnsLeft);for(var k=n-1;k>=0;k--){approxFractionalJoinNormal=prevNormal.mult((k+1)/(n+1))._add(nextNormal)._unit();this.addPieSliceVertex(currentVertex,this.distance,approxFractionalJoinNormal,lineTurnsLeft)}}if(nextVertex){this.addCurrentVertex(currentVertex,this.distance,nextNormal,-offsetA,-offsetB,false)}}else if(currentJoin==="butt"){if(!startOfLine){this.addCurrentVertex(currentVertex,this.distance,prevNormal,0,0,false)}if(nextVertex){this.addCurrentVertex(currentVertex,this.distance,nextNormal,0,0,false)}}else if(currentJoin==="square"){if(!startOfLine){this.addCurrentVertex(currentVertex,this.distance,prevNormal,1,1,false);this.e1=this.e2=-1}if(nextVertex){this.addCurrentVertex(currentVertex,this.distance,nextNormal,-1,-1,false)}}else if(currentJoin==="round"){if(!startOfLine){this.addCurrentVertex(currentVertex,this.distance,prevNormal,0,0,false);this.addCurrentVertex(currentVertex,this.distance,prevNormal,1,1,true);this.e1=this.e2=-1}if(nextVertex){this.addCurrentVertex(currentVertex,this.distance,nextNormal,-1,-1,true);this.addCurrentVertex(currentVertex,this.distance,nextNormal,0,0,false)}}if(isSharpCorner&&i<len-1){var nextSegmentLength=currentVertex.dist(nextVertex);if(nextSegmentLength>2*sharpCornerOffset){var newCurrentVertex=currentVertex.add(nextVertex.sub(currentVertex)._mult(sharpCornerOffset/nextSegmentLength)._round());this.distance+=newCurrentVertex.dist(currentVertex);this.addCurrentVertex(newCurrentVertex,this.distance,nextNormal.mult(1),0,0,false);currentVertex=newCurrentVertex}}startOfLine=false}this.populatePaintArrays("line",{zoom:this.zoom},featureProperties,group,startIndex)};LineBucket.prototype.addCurrentVertex=function(currentVertex,distance,normal,endLeft,endRight,round){var tx=round?1:0;var extrude;var arrayGroup=this.arrayGroups.line[this.arrayGroups.line.length-1];var layoutVertexArray=arrayGroup.layoutVertexArray;var elementArray=arrayGroup.elementArray;extrude=normal.clone();if(endLeft)extrude._sub(normal.perp()._mult(endLeft));this.e3=this.addLineVertex(layoutVertexArray,currentVertex,extrude,tx,0,endLeft,distance);if(this.e1>=0&&this.e2>=0){elementArray.emplaceBack(this.e1,this.e2,this.e3)}this.e1=this.e2;this.e2=this.e3;extrude=normal.mult(-1);if(endRight)extrude._sub(normal.perp()._mult(endRight));this.e3=this.addLineVertex(layoutVertexArray,currentVertex,extrude,tx,1,-endRight,distance);if(this.e1>=0&&this.e2>=0){elementArray.emplaceBack(this.e1,this.e2,this.e3)}this.e1=this.e2;this.e2=this.e3;if(distance>MAX_LINE_DISTANCE/2){this.distance=0;this.addCurrentVertex(currentVertex,this.distance,normal,endLeft,endRight,round)}};LineBucket.prototype.addPieSliceVertex=function(currentVertex,distance,extrude,lineTurnsLeft){var ty=lineTurnsLeft?1:0;extrude=extrude.mult(lineTurnsLeft?-1:1);var arrayGroup=this.arrayGroups.line[this.arrayGroups.line.length-1];var layoutVertexArray=arrayGroup.layoutVertexArray;var elementArray=arrayGroup.elementArray;this.e3=this.addLineVertex(layoutVertexArray,currentVertex,extrude,0,ty,0,distance);if(this.e1>=0&&this.e2>=0){elementArray.emplaceBack(this.e1,this.e2,this.e3)}if(lineTurnsLeft){this.e2=this.e3}else{this.e1=this.e3}}},{"../../util/util":137,
"../bucket":17,"../load_geometry":26}],22:[function(require,module,exports){"use strict";var Point=require("point-geometry");var Bucket=require("../bucket");var Anchor=require("../../symbol/anchor");var getAnchors=require("../../symbol/get_anchors");var resolveTokens=require("../../util/token");var Quads=require("../../symbol/quads");var Shaping=require("../../symbol/shaping");var resolveText=require("../../symbol/resolve_text");var mergeLines=require("../../symbol/mergelines");var clipLine=require("../../symbol/clip_line");var util=require("../../util/util");var loadGeometry=require("../load_geometry");var CollisionFeature=require("../../symbol/collision_feature");var findPoleOfInaccessibility=require("../../util/find_pole_of_inaccessibility");var classifyRings=require("../../util/classify_rings");var shapeText=Shaping.shapeText;var shapeIcon=Shaping.shapeIcon;var getGlyphQuads=Quads.getGlyphQuads;var getIconQuads=Quads.getIconQuads;var EXTENT=Bucket.EXTENT;module.exports=SymbolBucket;function SymbolBucket(options){Bucket.apply(this,arguments);this.showCollisionBoxes=options.showCollisionBoxes;this.overscaling=options.overscaling;this.collisionBoxArray=options.collisionBoxArray;this.symbolQuadsArray=options.symbolQuadsArray;this.symbolInstancesArray=options.symbolInstancesArray;this.sdfIcons=options.sdfIcons;this.iconsNeedLinear=options.iconsNeedLinear;this.adjustedTextSize=options.adjustedTextSize;this.adjustedIconSize=options.adjustedIconSize;this.fontstack=options.fontstack}SymbolBucket.MAX_QUADS=65535;SymbolBucket.prototype=util.inherit(Bucket,{});SymbolBucket.prototype.serialize=function(){var serialized=Bucket.prototype.serialize.apply(this);serialized.sdfIcons=this.sdfIcons;serialized.iconsNeedLinear=this.iconsNeedLinear;serialized.adjustedTextSize=this.adjustedTextSize;serialized.adjustedIconSize=this.adjustedIconSize;serialized.fontstack=this.fontstack;return serialized};var layoutVertexArrayType=new Bucket.VertexArrayType([{name:"a_pos",components:2,type:"Int16"},{name:"a_offset",components:2,type:"Int16"},{name:"a_texture_pos",components:2,type:"Uint16"},{name:"a_data",components:4,type:"Uint8"}]);var elementArrayType=new Bucket.ElementArrayType;function addVertex(array,x,y,ox,oy,tx,ty,minzoom,maxzoom,labelminzoom,labelangle){return array.emplaceBack(x,y,Math.round(ox*64),Math.round(oy*64),tx/4,ty/4,(labelminzoom||0)*10,labelangle,(minzoom||0)*10,Math.min(maxzoom||25,25)*10)}SymbolBucket.prototype.addCollisionBoxVertex=function(layoutVertexArray,point,extrude,maxZoom,placementZoom){return layoutVertexArray.emplaceBack(point.x,point.y,Math.round(extrude.x),Math.round(extrude.y),maxZoom*10,placementZoom*10)};SymbolBucket.prototype.programInterfaces={glyph:{layoutVertexArrayType:layoutVertexArrayType,elementArrayType:elementArrayType},icon:{layoutVertexArrayType:layoutVertexArrayType,elementArrayType:elementArrayType},collisionBox:{layoutVertexArrayType:new Bucket.VertexArrayType([{name:"a_pos",components:2,type:"Int16"},{name:"a_extrude",components:2,type:"Int16"},{name:"a_data",components:2,type:"Uint8"}])}};SymbolBucket.prototype.populateArrays=function(collisionTile,stacks,icons){var zoomHistory={lastIntegerZoom:Infinity,lastIntegerZoomTime:0,lastZoom:0};this.adjustedTextMaxSize=this.layer.getLayoutValue("text-size",{zoom:18,zoomHistory:zoomHistory});this.adjustedTextSize=this.layer.getLayoutValue("text-size",{zoom:this.zoom+1,zoomHistory:zoomHistory});this.adjustedIconMaxSize=this.layer.getLayoutValue("icon-size",{zoom:18,zoomHistory:zoomHistory});this.adjustedIconSize=this.layer.getLayoutValue("icon-size",{zoom:this.zoom+1,zoomHistory:zoomHistory});var tileSize=512*this.overscaling;this.tilePixelRatio=EXTENT/tileSize;this.compareText={};this.iconsNeedLinear=false;this.symbolInstancesStartIndex=this.symbolInstancesArray.length;var layout=this.layer.layout;var features=this.features;var textFeatures=this.textFeatures;var horizontalAlign=.5,verticalAlign=.5;switch(layout["text-anchor"]){case"right":case"top-right":case"bottom-right":horizontalAlign=1;break;case"left":case"top-left":case"bottom-left":horizontalAlign=0;break}switch(layout["text-anchor"]){case"bottom":case"bottom-right":case"bottom-left":verticalAlign=1;break;case"top":case"top-right":case"top-left":verticalAlign=0;break}var justify=layout["text-justify"]==="right"?1:layout["text-justify"]==="left"?0:.5;var oneEm=24;var lineHeight=layout["text-line-height"]*oneEm;var maxWidth=layout["symbol-placement"]!=="line"?layout["text-max-width"]*oneEm:0;var spacing=layout["text-letter-spacing"]*oneEm;var textOffset=[layout["text-offset"][0]*oneEm,layout["text-offset"][1]*oneEm];var fontstack=this.fontstack=layout["text-font"].join(",");var geometries=[];for(var g=0;g<features.length;g++){geometries.push(loadGeometry(features[g]))}if(layout["symbol-placement"]==="line"){var merged=mergeLines(features,textFeatures,geometries);geometries=merged.geometries;features=merged.features;textFeatures=merged.textFeatures}var shapedText,shapedIcon;for(var k=0;k<features.length;k++){if(!geometries[k])continue;if(textFeatures[k]){shapedText=shapeText(textFeatures[k],stacks[fontstack],maxWidth,lineHeight,horizontalAlign,verticalAlign,justify,spacing,textOffset)}else{shapedText=null}if(layout["icon-image"]){var iconName=resolveTokens(features[k].properties,layout["icon-image"]);var image=icons[iconName];shapedIcon=shapeIcon(image,layout);if(image){if(this.sdfIcons===undefined){this.sdfIcons=image.sdf}else if(this.sdfIcons!==image.sdf){util.warnOnce("Style sheet warning: Cannot mix SDF and non-SDF icons in one buffer")}if(image.pixelRatio!==1){this.iconsNeedLinear=true}else if(layout["icon-rotate"]!==0||!this.layer.isLayoutValueFeatureConstant("icon-rotate")){this.iconsNeedLinear=true}}}else{shapedIcon=null}if(shapedText||shapedIcon){this.addFeature(geometries[k],shapedText,shapedIcon,features[k])}}this.symbolInstancesEndIndex=this.symbolInstancesArray.length;this.placeFeatures(collisionTile,this.showCollisionBoxes);this.trimArrays()};SymbolBucket.prototype.addFeature=function(lines,shapedText,shapedIcon,feature){var layout=this.layer.layout;var glyphSize=24;var fontScale=this.adjustedTextSize/glyphSize,textMaxSize=this.adjustedTextMaxSize!==undefined?this.adjustedTextMaxSize:this.adjustedTextSize,textBoxScale=this.tilePixelRatio*fontScale,textMaxBoxScale=this.tilePixelRatio*textMaxSize/glyphSize,iconBoxScale=this.tilePixelRatio*this.adjustedIconSize,symbolMinDistance=this.tilePixelRatio*layout["symbol-spacing"],avoidEdges=layout["symbol-avoid-edges"],textPadding=layout["text-padding"]*this.tilePixelRatio,iconPadding=layout["icon-padding"]*this.tilePixelRatio,textMaxAngle=layout["text-max-angle"]/180*Math.PI,textAlongLine=layout["text-rotation-alignment"]==="map"&&layout["symbol-placement"]==="line",iconAlongLine=layout["icon-rotation-alignment"]==="map"&&layout["symbol-placement"]==="line",mayOverlap=layout["text-allow-overlap"]||layout["icon-allow-overlap"]||layout["text-ignore-placement"]||layout["icon-ignore-placement"],symbolPlacement=layout["symbol-placement"],isLine=symbolPlacement==="line",textRepeatDistance=symbolMinDistance/2;var list=null;if(isLine){list=clipLine(lines,0,0,EXTENT,EXTENT)}else{list=classifyRings(lines,0)}for(var i=0;i<list.length;i++){var anchors=null;var pointsOrRings=list[i];var line=null;if(isLine){line=pointsOrRings;anchors=getAnchors(line,symbolMinDistance,textMaxAngle,shapedText,shapedIcon,glyphSize,textMaxBoxScale,this.overscaling,EXTENT)}else{line=pointsOrRings[0];anchors=this.findPolygonAnchors(pointsOrRings)}for(var j=0,len=anchors.length;j<len;j++){var anchor=anchors[j];if(shapedText&&isLine){if(this.anchorIsTooClose(shapedText.text,textRepeatDistance,anchor)){continue}}var inside=!(anchor.x<0||anchor.x>EXTENT||anchor.y<0||anchor.y>EXTENT);if(avoidEdges&&!inside)continue;var addToBuffers=inside||mayOverlap;this.addSymbolInstance(anchor,line,shapedText,shapedIcon,this.layer,addToBuffers,this.symbolInstancesArray.length,this.collisionBoxArray,feature.index,this.sourceLayerIndex,this.index,textBoxScale,textPadding,textAlongLine,iconBoxScale,iconPadding,iconAlongLine,{zoom:this.zoom},feature.properties)}}};SymbolBucket.prototype.findPolygonAnchors=function(polygonRings){var outerRing=polygonRings[0];if(outerRing.length===0){return[]}else if(outerRing.length<3||!util.isClosedPolygon(outerRing)){return[new Anchor(outerRing[0].x,outerRing[0].y,0)]}var anchors=null;var poi=findPoleOfInaccessibility(polygonRings,16);anchors=[new Anchor(poi.x,poi.y,0)];return anchors};SymbolBucket.prototype.anchorIsTooClose=function(text,repeatDistance,anchor){var compareText=this.compareText;if(!(text in compareText)){compareText[text]=[]}else{var otherAnchors=compareText[text];for(var k=otherAnchors.length-1;k>=0;k--){if(anchor.dist(otherAnchors[k])<repeatDistance){return true}}}compareText[text].push(anchor);return false};SymbolBucket.prototype.placeFeatures=function(collisionTile,showCollisionBoxes){this.recalculateStyleLayers();this.createArrays();var layout=this.layer.layout;var maxScale=collisionTile.maxScale;var textAlongLine=layout["text-rotation-alignment"]==="map"&&layout["symbol-placement"]==="line";var iconAlongLine=layout["icon-rotation-alignment"]==="map"&&layout["symbol-placement"]==="line";var mayOverlap=layout["text-allow-overlap"]||layout["icon-allow-overlap"]||layout["text-ignore-placement"]||layout["icon-ignore-placement"];if(mayOverlap){var symbolInstancesStructTypeArray=this.symbolInstancesArray.toArray(this.symbolInstancesStartIndex,this.symbolInstancesEndIndex);var angle=collisionTile.angle;var sin=Math.sin(angle),cos=Math.cos(angle);this.sortedSymbolInstances=symbolInstancesStructTypeArray.sort(function(a,b){var aRotated=sin*a.anchorPointX+cos*a.anchorPointY|0;var bRotated=sin*b.anchorPointX+cos*b.anchorPointY|0;return aRotated-bRotated||b.index-a.index})}for(var p=this.symbolInstancesStartIndex;p<this.symbolInstancesEndIndex;p++){var symbolInstance=this.sortedSymbolInstances?this.sortedSymbolInstances[p-this.symbolInstancesStartIndex]:this.symbolInstancesArray.get(p);var textCollisionFeature={boxStartIndex:symbolInstance.textBoxStartIndex,boxEndIndex:symbolInstance.textBoxEndIndex};var iconCollisionFeature={boxStartIndex:symbolInstance.iconBoxStartIndex,boxEndIndex:symbolInstance.iconBoxEndIndex};var hasText=!(symbolInstance.textBoxStartIndex===symbolInstance.textBoxEndIndex);var hasIcon=!(symbolInstance.iconBoxStartIndex===symbolInstance.iconBoxEndIndex);var iconWithoutText=layout["text-optional"]||!hasText,textWithoutIcon=layout["icon-optional"]||!hasIcon;var glyphScale=hasText?collisionTile.placeCollisionFeature(textCollisionFeature,layout["text-allow-overlap"],layout["symbol-avoid-edges"]):collisionTile.minScale;var iconScale=hasIcon?collisionTile.placeCollisionFeature(iconCollisionFeature,layout["icon-allow-overlap"],layout["symbol-avoid-edges"]):collisionTile.minScale;if(!iconWithoutText&&!textWithoutIcon){iconScale=glyphScale=Math.max(iconScale,glyphScale)}else if(!textWithoutIcon&&glyphScale){glyphScale=Math.max(iconScale,glyphScale)}else if(!iconWithoutText&&iconScale){iconScale=Math.max(iconScale,glyphScale)}if(hasText){collisionTile.insertCollisionFeature(textCollisionFeature,glyphScale,layout["text-ignore-placement"]);if(glyphScale<=maxScale){this.addSymbols("glyph",symbolInstance.glyphQuadStartIndex,symbolInstance.glyphQuadEndIndex,glyphScale,layout["text-keep-upright"],textAlongLine,collisionTile.angle)}}if(hasIcon){collisionTile.insertCollisionFeature(iconCollisionFeature,iconScale,layout["icon-ignore-placement"]);if(iconScale<=maxScale){this.addSymbols("icon",symbolInstance.iconQuadStartIndex,symbolInstance.iconQuadEndIndex,iconScale,layout["icon-keep-upright"],iconAlongLine,collisionTile.angle)}}}if(showCollisionBoxes)this.addToDebugBuffers(collisionTile)};SymbolBucket.prototype.addSymbols=function(programName,quadsStart,quadsEnd,scale,keepUpright,alongLine,placementAngle){var group=this.prepareArrayGroup(programName,4*(quadsEnd-quadsStart));var elementArray=group.elementArray;var layoutVertexArray=group.layoutVertexArray;var zoom=this.zoom;var placementZoom=Math.max(Math.log(scale)/Math.LN2+zoom,0);for(var k=quadsStart;k<quadsEnd;k++){var symbol=this.symbolQuadsArray.get(k).SymbolQuad;var a=(symbol.anchorAngle+placementAngle+Math.PI)%(Math.PI*2);if(keepUpright&&alongLine&&(a<=Math.PI/2||a>Math.PI*3/2))continue;var tl=symbol.tl,tr=symbol.tr,bl=symbol.bl,br=symbol.br,tex=symbol.tex,anchorPoint=symbol.anchorPoint,minZoom=Math.max(zoom+Math.log(symbol.minScale)/Math.LN2,placementZoom),maxZoom=Math.min(zoom+Math.log(symbol.maxScale)/Math.LN2,25);if(maxZoom<=minZoom)continue;if(minZoom===placementZoom)minZoom=0;var glyphAngle=Math.round(symbol.glyphAngle/(Math.PI*2)*256);var index=addVertex(layoutVertexArray,anchorPoint.x,anchorPoint.y,tl.x,tl.y,tex.x,tex.y,minZoom,maxZoom,placementZoom,glyphAngle);addVertex(layoutVertexArray,anchorPoint.x,anchorPoint.y,tr.x,tr.y,tex.x+tex.w,tex.y,minZoom,maxZoom,placementZoom,glyphAngle);addVertex(layoutVertexArray,anchorPoint.x,anchorPoint.y,bl.x,bl.y,tex.x,tex.y+tex.h,minZoom,maxZoom,placementZoom,glyphAngle);addVertex(layoutVertexArray,anchorPoint.x,anchorPoint.y,br.x,br.y,tex.x+tex.w,tex.y+tex.h,minZoom,maxZoom,placementZoom,glyphAngle);elementArray.emplaceBack(index,index+1,index+2);elementArray.emplaceBack(index+1,index+2,index+3)}};SymbolBucket.prototype.updateIcons=function(icons){this.recalculateStyleLayers();var iconValue=this.layer.layout["icon-image"];if(!iconValue)return;for(var i=0;i<this.features.length;i++){var iconName=resolveTokens(this.features[i].properties,iconValue);if(iconName)icons[iconName]=true}};SymbolBucket.prototype.updateFont=function(stacks){this.recalculateStyleLayers();var fontName=this.layer.layout["text-font"],stack=stacks[fontName]=stacks[fontName]||{};this.textFeatures=resolveText(this.features,this.layer.layout,stack)};SymbolBucket.prototype.addToDebugBuffers=function(collisionTile){var group=this.prepareArrayGroup("collisionBox",0);var layoutVertexArray=group.layoutVertexArray;var angle=-collisionTile.angle;var yStretch=collisionTile.yStretch;for(var j=this.symbolInstancesStartIndex;j<this.symbolInstancesEndIndex;j++){var symbolInstance=this.symbolInstancesArray.get(j);symbolInstance.textCollisionFeature={boxStartIndex:symbolInstance.textBoxStartIndex,boxEndIndex:symbolInstance.textBoxEndIndex};symbolInstance.iconCollisionFeature={boxStartIndex:symbolInstance.iconBoxStartIndex,boxEndIndex:symbolInstance.iconBoxEndIndex};for(var i=0;i<2;i++){var feature=symbolInstance[i===0?"textCollisionFeature":"iconCollisionFeature"];if(!feature)continue;for(var b=feature.boxStartIndex;b<feature.boxEndIndex;b++){var box=this.collisionBoxArray.get(b);var anchorPoint=box.anchorPoint;var tl=new Point(box.x1,box.y1*yStretch)._rotate(angle);var tr=new Point(box.x2,box.y1*yStretch)._rotate(angle);var bl=new Point(box.x1,box.y2*yStretch)._rotate(angle);var br=new Point(box.x2,box.y2*yStretch)._rotate(angle);var maxZoom=Math.max(0,Math.min(25,this.zoom+Math.log(box.maxScale)/Math.LN2));var placementZoom=Math.max(0,Math.min(25,this.zoom+Math.log(box.placementScale)/Math.LN2));this.addCollisionBoxVertex(layoutVertexArray,anchorPoint,tl,maxZoom,placementZoom);this.addCollisionBoxVertex(layoutVertexArray,anchorPoint,tr,maxZoom,placementZoom);this.addCollisionBoxVertex(layoutVertexArray,anchorPoint,tr,maxZoom,placementZoom);this.addCollisionBoxVertex(layoutVertexArray,anchorPoint,br,maxZoom,placementZoom);this.addCollisionBoxVertex(layoutVertexArray,anchorPoint,br,maxZoom,placementZoom);this.addCollisionBoxVertex(layoutVertexArray,anchorPoint,bl,maxZoom,placementZoom);this.addCollisionBoxVertex(layoutVertexArray,anchorPoint,bl,maxZoom,placementZoom);this.addCollisionBoxVertex(layoutVertexArray,anchorPoint,tl,maxZoom,placementZoom)}}}};SymbolBucket.prototype.addSymbolInstance=function(anchor,line,shapedText,shapedIcon,layer,addToBuffers,index,collisionBoxArray,featureIndex,sourceLayerIndex,bucketIndex,textBoxScale,textPadding,textAlongLine,iconBoxScale,iconPadding,iconAlongLine,globalProperties,featureProperties){var glyphQuadStartIndex,glyphQuadEndIndex,iconQuadStartIndex,iconQuadEndIndex,textCollisionFeature,iconCollisionFeature,glyphQuads,iconQuads;if(shapedText){glyphQuads=addToBuffers?getGlyphQuads(anchor,shapedText,textBoxScale,line,layer,textAlongLine):[];textCollisionFeature=new CollisionFeature(collisionBoxArray,line,anchor,featureIndex,sourceLayerIndex,bucketIndex,shapedText,textBoxScale,textPadding,textAlongLine,false)}glyphQuadStartIndex=this.symbolQuadsArray.length;if(glyphQuads&&glyphQuads.length){for(var i=0;i<glyphQuads.length;i++){this.addSymbolQuad(glyphQuads[i])}}glyphQuadEndIndex=this.symbolQuadsArray.length;var textBoxStartIndex=textCollisionFeature?textCollisionFeature.boxStartIndex:this.collisionBoxArray.length;var textBoxEndIndex=textCollisionFeature?textCollisionFeature.boxEndIndex:this.collisionBoxArray.length;if(shapedIcon){iconQuads=addToBuffers?getIconQuads(anchor,shapedIcon,iconBoxScale,line,layer,iconAlongLine,shapedText,globalProperties,featureProperties):[];iconCollisionFeature=new CollisionFeature(collisionBoxArray,line,anchor,featureIndex,sourceLayerIndex,bucketIndex,shapedIcon,iconBoxScale,iconPadding,iconAlongLine,true)}iconQuadStartIndex=this.symbolQuadsArray.length;if(iconQuads&&iconQuads.length===1){this.addSymbolQuad(iconQuads[0])}iconQuadEndIndex=this.symbolQuadsArray.length;var iconBoxStartIndex=iconCollisionFeature?iconCollisionFeature.boxStartIndex:this.collisionBoxArray.length;var iconBoxEndIndex=iconCollisionFeature?iconCollisionFeature.boxEndIndex:this.collisionBoxArray.length;if(iconQuadEndIndex>SymbolBucket.MAX_QUADS)util.warnOnce("Too many symbols being rendered in a tile. See https://github.com/mapbox/mapbox-gl-js/issues/2907");if(glyphQuadEndIndex>SymbolBucket.MAX_QUADS)util.warnOnce("Too many glyphs being rendered in a tile. See https://github.com/mapbox/mapbox-gl-js/issues/2907");return this.symbolInstancesArray.emplaceBack(textBoxStartIndex,textBoxEndIndex,iconBoxStartIndex,iconBoxEndIndex,glyphQuadStartIndex,glyphQuadEndIndex,iconQuadStartIndex,iconQuadEndIndex,anchor.x,anchor.y,index)};SymbolBucket.prototype.addSymbolQuad=function(symbolQuad){return this.symbolQuadsArray.emplaceBack(symbolQuad.anchorPoint.x,symbolQuad.anchorPoint.y,symbolQuad.tl.x,symbolQuad.tl.y,symbolQuad.tr.x,symbolQuad.tr.y,symbolQuad.bl.x,symbolQuad.bl.y,symbolQuad.br.x,symbolQuad.br.y,symbolQuad.tex.h,symbolQuad.tex.w,symbolQuad.tex.x,symbolQuad.tex.y,symbolQuad.anchorAngle,symbolQuad.glyphAngle,symbolQuad.maxScale,symbolQuad.minScale)}},{"../../symbol/anchor":84,"../../symbol/clip_line":86,"../../symbol/collision_feature":88,"../../symbol/get_anchors":90,"../../symbol/mergelines":93,"../../symbol/quads":94,"../../symbol/resolve_text":95,"../../symbol/shaping":96,"../../util/classify_rings":123,"../../util/find_pole_of_inaccessibility":129,"../../util/token":136,"../../util/util":137,"../bucket":17,"../load_geometry":26,"point-geometry":196}],23:[function(require,module,exports){"use strict";module.exports=Buffer;function Buffer(array,arrayType,type){this.arrayBuffer=array.arrayBuffer;this.length=array.length;this.attributes=arrayType.members;this.itemSize=arrayType.bytesPerElement;this.type=type;this.arrayType=arrayType}Buffer.prototype.bind=function(gl){var type=gl[this.type];if(!this.buffer){this.gl=gl;this.buffer=gl.createBuffer();gl.bindBuffer(type,this.buffer);gl.bufferData(type,this.arrayBuffer,gl.STATIC_DRAW);this.arrayBuffer=null}else{gl.bindBuffer(type,this.buffer)}};var AttributeType={Int8:"BYTE",Uint8:"UNSIGNED_BYTE",Int16:"SHORT",Uint16:"UNSIGNED_SHORT"};Buffer.prototype.setVertexAttribPointers=function(gl,program){for(var j=0;j<this.attributes.length;j++){var member=this.attributes[j];var attribIndex=program[member.name];if(attribIndex!==undefined){gl.vertexAttribPointer(attribIndex,member.components,gl[AttributeType[member.type]],false,this.arrayType.bytesPerElement,member.offset)}}};Buffer.prototype.destroy=function(){if(this.buffer){this.gl.deleteBuffer(this.buffer)}};Buffer.BufferType={VERTEX:"ARRAY_BUFFER",ELEMENT:"ELEMENT_ARRAY_BUFFER"}},{}],24:[function(require,module,exports){"use strict";var util=require("../util/util");var Buffer=require("./buffer");var VertexArrayObject=require("../render/vertex_array_object");module.exports=BufferGroup;function BufferGroup(arrayGroup,arrayTypes){this.layoutVertexBuffer=new Buffer(arrayGroup.layoutVertexArray,arrayTypes.layoutVertexArrayType,Buffer.BufferType.VERTEX);if(arrayGroup.elementArray){this.elementBuffer=new Buffer(arrayGroup.elementArray,arrayTypes.elementArrayType,Buffer.BufferType.ELEMENT)}var vaos=this.vaos={};var secondVaos;if(arrayGroup.elementArray2){this.elementBuffer2=new Buffer(arrayGroup.elementArray2,arrayTypes.elementArrayType2,Buffer.BufferType.ELEMENT);secondVaos=this.secondVaos={}}this.paintVertexBuffers=util.mapObject(arrayGroup.paintVertexArrays,function(array,name){vaos[name]=new VertexArrayObject;if(arrayGroup.elementArray2){secondVaos[name]=new VertexArrayObject}return new Buffer(array,arrayTypes.paintVertexArrayTypes[name],Buffer.BufferType.VERTEX)})}BufferGroup.prototype.destroy=function(){this.layoutVertexBuffer.destroy();if(this.elementBuffer){this.elementBuffer.destroy()}if(this.elementBuffer2){this.elementBuffer2.destroy()}for(var n in this.paintVertexBuffers){this.paintVertexBuffers[n].destroy()}for(var j in this.vaos){this.vaos[j].destroy()}for(var k in this.secondVaos){this.secondVaos[k].destroy()}}},{"../render/vertex_array_object":49,"../util/util":137,"./buffer":23}],25:[function(require,module,exports){"use strict";var Point=require("point-geometry");var loadGeometry=require("./load_geometry");var EXTENT=require("./bucket").EXTENT;var featureFilter=require("feature-filter");var StructArrayType=require("../util/struct_array");var Grid=require("grid-index");var DictionaryCoder=require("../util/dictionary_coder");var vt=require("vector-tile");var Protobuf=require("pbf");var GeoJSONFeature=require("../util/vectortile_to_geojson");var arraysIntersect=require("../util/util").arraysIntersect;var intersection=require("../util/intersection_tests");var multiPolygonIntersectsBufferedMultiPoint=intersection.multiPolygonIntersectsBufferedMultiPoint;var multiPolygonIntersectsMultiPolygon=intersection.multiPolygonIntersectsMultiPolygon;var multiPolygonIntersectsBufferedMultiLine=intersection.multiPolygonIntersectsBufferedMultiLine;var FeatureIndexArray=new StructArrayType({members:[{type:"Uint32",name:"featureIndex"},{type:"Uint16",name:"sourceLayerIndex"},{type:"Uint16",name:"bucketIndex"}]});module.exports=FeatureIndex;function FeatureIndex(coord,overscaling,collisionTile){if(coord.grid){var serialized=coord;var rawTileData=overscaling;coord=serialized.coord;overscaling=serialized.overscaling;this.grid=new Grid(serialized.grid);this.featureIndexArray=new FeatureIndexArray(serialized.featureIndexArray);this.rawTileData=rawTileData;this.bucketLayerIDs=serialized.bucketLayerIDs}else{this.grid=new Grid(EXTENT,16,0);this.featureIndexArray=new FeatureIndexArray}this.coord=coord;this.overscaling=overscaling;this.x=coord.x;this.y=coord.y;this.z=coord.z-Math.log(overscaling)/Math.LN2;this.setCollisionTile(collisionTile)}FeatureIndex.prototype.insert=function(feature,featureIndex,sourceLayerIndex,bucketIndex){var key=this.featureIndexArray.length;this.featureIndexArray.emplaceBack(featureIndex,sourceLayerIndex,bucketIndex);var geometry=loadGeometry(feature);for(var r=0;r<geometry.length;r++){var ring=geometry[r];var bbox=[Infinity,Infinity,-Infinity,-Infinity];for(var i=0;i<ring.length;i++){var p=ring[i];bbox[0]=Math.min(bbox[0],p.x);bbox[1]=Math.min(bbox[1],p.y);bbox[2]=Math.max(bbox[2],p.x);bbox[3]=Math.max(bbox[3],p.y)}this.grid.insert(key,bbox[0],bbox[1],bbox[2],bbox[3])}};FeatureIndex.prototype.setCollisionTile=function(collisionTile){this.collisionTile=collisionTile};FeatureIndex.prototype.serialize=function(){var data={coord:this.coord,overscaling:this.overscaling,grid:this.grid.toArrayBuffer(),featureIndexArray:this.featureIndexArray.serialize(),bucketLayerIDs:this.bucketLayerIDs};return{data:data,transferables:[data.grid,data.featureIndexArray.arrayBuffer]}};function translateDistance(translate){return Math.sqrt(translate[0]*translate[0]+translate[1]*translate[1])}FeatureIndex.prototype.query=function(args,styleLayers){if(!this.vtLayers){this.vtLayers=new vt.VectorTile(new Protobuf(this.rawTileData)).layers;this.sourceLayerCoder=new DictionaryCoder(this.vtLayers?Object.keys(this.vtLayers).sort():["_geojsonTileLayer"])}var result={};var params=args.params||{},pixelsToTileUnits=EXTENT/args.tileSize/args.scale,filter=featureFilter(params.filter);var additionalRadius=0;for(var id in styleLayers){var styleLayer=styleLayers[id];var paint=styleLayer.paint;var styleLayerDistance=0;if(styleLayer.type==="line"){styleLayerDistance=getLineWidth(paint)/2+Math.abs(paint["line-offset"])+translateDistance(paint["line-translate"])}else if(styleLayer.type==="fill"){styleLayerDistance=translateDistance(paint["fill-translate"])}else if(styleLayer.type==="circle"){styleLayerDistance=paint["circle-radius"]+translateDistance(paint["circle-translate"])}additionalRadius=Math.max(additionalRadius,styleLayerDistance*pixelsToTileUnits)}var queryGeometry=args.queryGeometry.map(function(q){return q.map(function(p){return new Point(p.x,p.y)})});var minX=Infinity;var minY=Infinity;var maxX=-Infinity;var maxY=-Infinity;for(var i=0;i<queryGeometry.length;i++){var ring=queryGeometry[i];for(var k=0;k<ring.length;k++){var p=ring[k];minX=Math.min(minX,p.x);minY=Math.min(minY,p.y);maxX=Math.max(maxX,p.x);maxY=Math.max(maxY,p.y)}}var matching=this.grid.query(minX-additionalRadius,minY-additionalRadius,maxX+additionalRadius,maxY+additionalRadius);matching.sort(topDownFeatureComparator);this.filterMatching(result,matching,this.featureIndexArray,queryGeometry,filter,params.layers,styleLayers,args.bearing,pixelsToTileUnits);var matchingSymbols=this.collisionTile.queryRenderedSymbols(minX,minY,maxX,maxY,args.scale);matchingSymbols.sort();this.filterMatching(result,matchingSymbols,this.collisionTile.collisionBoxArray,queryGeometry,filter,params.layers,styleLayers,args.bearing,pixelsToTileUnits);return result};function topDownFeatureComparator(a,b){return b-a}function getLineWidth(paint){if(paint["line-gap-width"]>0){return paint["line-gap-width"]+2*paint["line-width"]}else{return paint["line-width"]}}FeatureIndex.prototype.filterMatching=function(result,matching,array,queryGeometry,filter,filterLayerIDs,styleLayers,bearing,pixelsToTileUnits){var previousIndex;for(var k=0;k<matching.length;k++){var index=matching[k];if(index===previousIndex)continue;previousIndex=index;var match=array.get(index);var layerIDs=this.bucketLayerIDs[match.bucketIndex];if(filterLayerIDs&&!arraysIntersect(filterLayerIDs,layerIDs))continue;var sourceLayerName=this.sourceLayerCoder.decode(match.sourceLayerIndex);var sourceLayer=this.vtLayers[sourceLayerName];var feature=sourceLayer.feature(match.featureIndex);if(!filter(feature))continue;var geometry=null;for(var l=0;l<layerIDs.length;l++){var layerID=layerIDs[l];if(filterLayerIDs&&filterLayerIDs.indexOf(layerID)<0){continue}var styleLayer=styleLayers[layerID];if(!styleLayer)continue;var translatedPolygon;if(styleLayer.type!=="symbol"){if(!geometry)geometry=loadGeometry(feature);var paint=styleLayer.paint;if(styleLayer.type==="line"){translatedPolygon=translate(queryGeometry,paint["line-translate"],paint["line-translate-anchor"],bearing,pixelsToTileUnits);var halfWidth=getLineWidth(paint)/2*pixelsToTileUnits;if(paint["line-offset"]){geometry=offsetLine(geometry,paint["line-offset"]*pixelsToTileUnits)}if(!multiPolygonIntersectsBufferedMultiLine(translatedPolygon,geometry,halfWidth))continue}else if(styleLayer.type==="fill"){translatedPolygon=translate(queryGeometry,paint["fill-translate"],paint["fill-translate-anchor"],bearing,pixelsToTileUnits);if(!multiPolygonIntersectsMultiPolygon(translatedPolygon,geometry))continue}else if(styleLayer.type==="circle"){translatedPolygon=translate(queryGeometry,paint["circle-translate"],paint["circle-translate-anchor"],bearing,pixelsToTileUnits);var circleRadius=paint["circle-radius"]*pixelsToTileUnits;if(!multiPolygonIntersectsBufferedMultiPoint(translatedPolygon,geometry,circleRadius))continue}}var geojsonFeature=new GeoJSONFeature(feature,this.z,this.x,this.y);geojsonFeature.layer=styleLayer.serialize({includeRefProperties:true});var layerResult=result[layerID];if(layerResult===undefined){layerResult=result[layerID]=[]}layerResult.push(geojsonFeature)}}};function translate(queryGeometry,translate,translateAnchor,bearing,pixelsToTileUnits){if(!translate[0]&&!translate[1]){return queryGeometry}translate=Point.convert(translate);if(translateAnchor==="viewport"){translate._rotate(-bearing)}var translated=[];for(var i=0;i<queryGeometry.length;i++){var ring=queryGeometry[i];var translatedRing=[];for(var k=0;k<ring.length;k++){translatedRing.push(ring[k].sub(translate._mult(pixelsToTileUnits)))}translated.push(translatedRing)}return translated}function offsetLine(rings,offset){var newRings=[];var zero=new Point(0,0);for(var k=0;k<rings.length;k++){var ring=rings[k];var newRing=[];for(var i=0;i<ring.length;i++){var a=ring[i-1];var b=ring[i];var c=ring[i+1];var aToB=i===0?zero:b.sub(a)._unit()._perp();var bToC=i===ring.length-1?zero:c.sub(b)._unit()._perp();var extrude=aToB._add(bToC)._unit();var cosHalfAngle=extrude.x*bToC.x+extrude.y*bToC.y;extrude._mult(1/cosHalfAngle);newRing.push(extrude._mult(offset)._add(b))}newRings.push(newRing)}return newRings}},{"../util/dictionary_coder":125,"../util/intersection_tests":132,"../util/struct_array":135,"../util/util":137,"../util/vectortile_to_geojson":138,"./bucket":17,"./load_geometry":26,"feature-filter":142,"grid-index":164,pbf:194,"point-geometry":196,"vector-tile":206}],26:[function(require,module,exports){"use strict";var util=require("../util/util");var EXTENT=require("./bucket").EXTENT;function createBounds(bits){return{min:-1*Math.pow(2,bits-1),max:Math.pow(2,bits-1)-1}}var boundsLookup={15:createBounds(15),16:createBounds(16)};module.exports=function loadGeometry(feature,bits){var bounds=boundsLookup[bits||16];var scale=EXTENT/feature.extent;var geometry=feature.loadGeometry();for(var r=0;r<geometry.length;r++){var ring=geometry[r];for(var p=0;p<ring.length;p++){var point=ring[p];point.x=Math.round(point.x*scale);point.y=Math.round(point.y*scale);if(point.x<bounds.min||point.x>bounds.max||point.y<bounds.min||point.y>bounds.max){util.warnOnce("Geometry exceeds allowed extent, reduce your vector tile buffer size")}}}return geometry}},{"../util/util":137,"./bucket":17}],27:[function(require,module,exports){"use strict";module.exports=Coordinate;function Coordinate(column,row,zoom){this.column=column;this.row=row;this.zoom=zoom}Coordinate.prototype={clone:function(){return new Coordinate(this.column,this.row,this.zoom)},zoomTo:function(zoom){return this.clone()._zoomTo(zoom)},sub:function(c){return this.clone()._sub(c)},_zoomTo:function(zoom){var scale=Math.pow(2,zoom-this.zoom);this.column*=scale;this.row*=scale;this.zoom=zoom;return this},_sub:function(c){c=c.zoomTo(this.zoom);this.column-=c.column;this.row-=c.row;return this}}},{}],28:[function(require,module,exports){"use strict";module.exports=LngLat;var wrap=require("../util/util").wrap;function LngLat(lng,lat){if(isNaN(lng)||isNaN(lat)){throw new Error("Invalid LngLat object: ("+lng+", "+lat+")")}this.lng=+lng;this.lat=+lat;if(this.lat>90||this.lat<-90){throw new Error("Invalid LngLat latitude value: must be between -90 and 90")}}LngLat.prototype.wrap=function(){return new LngLat(wrap(this.lng,-180,180),this.lat)};LngLat.prototype.toArray=function(){return[this.lng,this.lat]};LngLat.prototype.toString=function(){return"LngLat("+this.lng+", "+this.lat+")"};LngLat.convert=function(input){if(input instanceof LngLat){return input}else if(input&&input.hasOwnProperty("lng")&&input.hasOwnProperty("lat")){return new LngLat(input.lng,input.lat);
}else if(Array.isArray(input)&&input.length===2){return new LngLat(input[0],input[1])}else{throw new Error("`LngLatLike` argument must be specified as a LngLat instance, an object {lng: <lng>, lat: <lat>}, or an array of [<lng>, <lat>]")}}},{"../util/util":137}],29:[function(require,module,exports){"use strict";module.exports=LngLatBounds;var LngLat=require("./lng_lat");function LngLatBounds(sw,ne){if(!sw){return}else if(ne){this.setSouthWest(sw).setNorthEast(ne)}else if(sw.length===4){this.setSouthWest([sw[0],sw[1]]).setNorthEast([sw[2],sw[3]])}else{this.setSouthWest(sw[0]).setNorthEast(sw[1])}}LngLatBounds.prototype={setNorthEast:function(ne){this._ne=LngLat.convert(ne);return this},setSouthWest:function(sw){this._sw=LngLat.convert(sw);return this},extend:function(obj){var sw=this._sw,ne=this._ne,sw2,ne2;if(obj instanceof LngLat){sw2=obj;ne2=obj}else if(obj instanceof LngLatBounds){sw2=obj._sw;ne2=obj._ne;if(!sw2||!ne2)return this}else{if(Array.isArray(obj)){if(obj.every(Array.isArray)){return this.extend(LngLatBounds.convert(obj))}else{return this.extend(LngLat.convert(obj))}}return this}if(!sw&&!ne){this._sw=new LngLat(sw2.lng,sw2.lat);this._ne=new LngLat(ne2.lng,ne2.lat)}else{sw.lng=Math.min(sw2.lng,sw.lng);sw.lat=Math.min(sw2.lat,sw.lat);ne.lng=Math.max(ne2.lng,ne.lng);ne.lat=Math.max(ne2.lat,ne.lat)}return this},getCenter:function(){return new LngLat((this._sw.lng+this._ne.lng)/2,(this._sw.lat+this._ne.lat)/2)},getSouthWest:function(){return this._sw},getNorthEast:function(){return this._ne},getNorthWest:function(){return new LngLat(this.getWest(),this.getNorth())},getSouthEast:function(){return new LngLat(this.getEast(),this.getSouth())},getWest:function(){return this._sw.lng},getSouth:function(){return this._sw.lat},getEast:function(){return this._ne.lng},getNorth:function(){return this._ne.lat},toArray:function(){return[this._sw.toArray(),this._ne.toArray()]},toString:function(){return"LngLatBounds("+this._sw.toString()+", "+this._ne.toString()+")"}};LngLatBounds.convert=function(input){if(!input||input instanceof LngLatBounds)return input;return new LngLatBounds(input)}},{"./lng_lat":28}],30:[function(require,module,exports){"use strict";var LngLat=require("./lng_lat"),Point=require("point-geometry"),Coordinate=require("./coordinate"),util=require("../util/util"),interp=require("../util/interpolate"),TileCoord=require("../source/tile_coord"),EXTENT=require("../data/bucket").EXTENT,glmatrix=require("gl-matrix");var vec4=glmatrix.vec4,mat4=glmatrix.mat4,mat2=glmatrix.mat2;module.exports=Transform;function Transform(minZoom,maxZoom){this.tileSize=512;this._minZoom=minZoom||0;this._maxZoom=maxZoom||22;this.latRange=[-85.05113,85.05113];this.width=0;this.height=0;this._center=new LngLat(0,0);this.zoom=0;this.angle=0;this._altitude=1.5;this._pitch=0;this._unmodified=true}Transform.prototype={get minZoom(){return this._minZoom},set minZoom(zoom){if(this._minZoom===zoom)return;this._minZoom=zoom;this.zoom=Math.max(this.zoom,zoom)},get maxZoom(){return this._maxZoom},set maxZoom(zoom){if(this._maxZoom===zoom)return;this._maxZoom=zoom;this.zoom=Math.min(this.zoom,zoom)},get worldSize(){return this.tileSize*this.scale},get centerPoint(){return this.size._div(2)},get size(){return new Point(this.width,this.height)},get bearing(){return-this.angle/Math.PI*180},set bearing(bearing){var b=-util.wrap(bearing,-180,180)*Math.PI/180;if(this.angle===b)return;this._unmodified=false;this.angle=b;this._calcMatrices();this.rotationMatrix=mat2.create();mat2.rotate(this.rotationMatrix,this.rotationMatrix,this.angle)},get pitch(){return this._pitch/Math.PI*180},set pitch(pitch){var p=util.clamp(pitch,0,60)/180*Math.PI;if(this._pitch===p)return;this._unmodified=false;this._pitch=p;this._calcMatrices()},get altitude(){return this._altitude},set altitude(altitude){var a=Math.max(.75,altitude);if(this._altitude===a)return;this._unmodified=false;this._altitude=a;this._calcMatrices()},get zoom(){return this._zoom},set zoom(zoom){var z=Math.min(Math.max(zoom,this.minZoom),this.maxZoom);if(this._zoom===z)return;this._unmodified=false;this._zoom=z;this.scale=this.zoomScale(z);this.tileZoom=Math.floor(z);this.zoomFraction=z-this.tileZoom;this._calcMatrices();this._constrain()},get center(){return this._center},set center(center){if(center.lat===this._center.lat&&center.lng===this._center.lng)return;this._unmodified=false;this._center=center;this._calcMatrices();this._constrain()},coveringZoomLevel:function(options){return(options.roundZoom?Math.round:Math.floor)(this.zoom+this.scaleZoom(this.tileSize/options.tileSize))},coveringTiles:function(options){var z=this.coveringZoomLevel(options);var actualZ=z;if(z<options.minzoom)return[];if(z>options.maxzoom)z=options.maxzoom;var tr=this,tileCenter=tr.locationCoordinate(tr.center)._zoomTo(z),centerPoint=new Point(tileCenter.column-.5,tileCenter.row-.5);return TileCoord.cover(z,[tr.pointCoordinate(new Point(0,0))._zoomTo(z),tr.pointCoordinate(new Point(tr.width,0))._zoomTo(z),tr.pointCoordinate(new Point(tr.width,tr.height))._zoomTo(z),tr.pointCoordinate(new Point(0,tr.height))._zoomTo(z)],options.reparseOverscaled?actualZ:z).sort(function(a,b){return centerPoint.dist(a)-centerPoint.dist(b)})},resize:function(width,height){this.width=width;this.height=height;this.pixelsToGLUnits=[2/width,-2/height];this._calcMatrices();this._constrain()},get unmodified(){return this._unmodified},zoomScale:function(zoom){return Math.pow(2,zoom)},scaleZoom:function(scale){return Math.log(scale)/Math.LN2},project:function(lnglat,worldSize){return new Point(this.lngX(lnglat.lng,worldSize),this.latY(lnglat.lat,worldSize))},unproject:function(point,worldSize){return new LngLat(this.xLng(point.x,worldSize),this.yLat(point.y,worldSize))},get x(){return this.lngX(this.center.lng)},get y(){return this.latY(this.center.lat)},get point(){return new Point(this.x,this.y)},lngX:function(lng,worldSize){return(180+lng)*(worldSize||this.worldSize)/360},latY:function(lat,worldSize){var y=180/Math.PI*Math.log(Math.tan(Math.PI/4+lat*Math.PI/360));return(180-y)*(worldSize||this.worldSize)/360},xLng:function(x,worldSize){return x*360/(worldSize||this.worldSize)-180},yLat:function(y,worldSize){var y2=180-y*360/(worldSize||this.worldSize);return 360/Math.PI*Math.atan(Math.exp(y2*Math.PI/180))-90},panBy:function(offset){var point=this.centerPoint._add(offset);this.center=this.pointLocation(point)},setLocationAtPoint:function(lnglat,point){var c=this.locationCoordinate(lnglat);var coordAtPoint=this.pointCoordinate(point);var coordCenter=this.pointCoordinate(this.centerPoint);var translate=coordAtPoint._sub(c);this._unmodified=false;this.center=this.coordinateLocation(coordCenter._sub(translate))},locationPoint:function(lnglat){return this.coordinatePoint(this.locationCoordinate(lnglat))},pointLocation:function(p){return this.coordinateLocation(this.pointCoordinate(p))},locationCoordinate:function(lnglat){var k=this.zoomScale(this.tileZoom)/this.worldSize,ll=LngLat.convert(lnglat);return new Coordinate(this.lngX(ll.lng)*k,this.latY(ll.lat)*k,this.tileZoom)},coordinateLocation:function(coord){var worldSize=this.zoomScale(coord.zoom);return new LngLat(this.xLng(coord.column,worldSize),this.yLat(coord.row,worldSize))},pointCoordinate:function(p){var targetZ=0;var coord0=[p.x,p.y,0,1];var coord1=[p.x,p.y,1,1];vec4.transformMat4(coord0,coord0,this.pixelMatrixInverse);vec4.transformMat4(coord1,coord1,this.pixelMatrixInverse);var w0=coord0[3];var w1=coord1[3];var x0=coord0[0]/w0;var x1=coord1[0]/w1;var y0=coord0[1]/w0;var y1=coord1[1]/w1;var z0=coord0[2]/w0;var z1=coord1[2]/w1;var t=z0===z1?0:(targetZ-z0)/(z1-z0);var scale=this.worldSize/this.zoomScale(this.tileZoom);return new Coordinate(interp(x0,x1,t)/scale,interp(y0,y1,t)/scale,this.tileZoom)},coordinatePoint:function(coord){var scale=this.worldSize/this.zoomScale(coord.zoom);var p=[coord.column*scale,coord.row*scale,0,1];vec4.transformMat4(p,p,this.pixelMatrix);return new Point(p[0]/p[3],p[1]/p[3])},calculatePosMatrix:function(coord,maxZoom){if(maxZoom===undefined)maxZoom=Infinity;if(coord instanceof TileCoord)coord=coord.toCoordinate(maxZoom);var z=Math.min(coord.zoom,maxZoom);var scale=this.worldSize/Math.pow(2,z);var posMatrix=new Float64Array(16);mat4.identity(posMatrix);mat4.translate(posMatrix,posMatrix,[coord.column*scale,coord.row*scale,0]);mat4.scale(posMatrix,posMatrix,[scale/EXTENT,scale/EXTENT,1]);mat4.multiply(posMatrix,this.projMatrix,posMatrix);return new Float32Array(posMatrix)},_constrain:function(){if(!this.center||!this.width||!this.height||this._constraining)return;this._constraining=true;var minY,maxY,minX,maxX,sy,sx,x2,y2,size=this.size,unmodified=this._unmodified;if(this.latRange){minY=this.latY(this.latRange[1]);maxY=this.latY(this.latRange[0]);sy=maxY-minY<size.y?size.y/(maxY-minY):0}if(this.lngRange){minX=this.lngX(this.lngRange[0]);maxX=this.lngX(this.lngRange[1]);sx=maxX-minX<size.x?size.x/(maxX-minX):0}var s=Math.max(sx||0,sy||0);if(s){this.center=this.unproject(new Point(sx?(maxX+minX)/2:this.x,sy?(maxY+minY)/2:this.y));this.zoom+=this.scaleZoom(s);this._unmodified=unmodified;this._constraining=false;return}if(this.latRange){var y=this.y,h2=size.y/2;if(y-h2<minY)y2=minY+h2;if(y+h2>maxY)y2=maxY-h2}if(this.lngRange){var x=this.x,w2=size.x/2;if(x-w2<minX)x2=minX+w2;if(x+w2>maxX)x2=maxX-w2}if(x2!==undefined||y2!==undefined){this.center=this.unproject(new Point(x2!==undefined?x2:this.x,y2!==undefined?y2:this.y))}this._unmodified=unmodified;this._constraining=false},_calcMatrices:function(){if(!this.height)return;var halfFov=Math.atan(.5/this.altitude);var topHalfSurfaceDistance=Math.sin(halfFov)*this.altitude/Math.sin(Math.PI/2-this._pitch-halfFov);var farZ=Math.cos(Math.PI/2-this._pitch)*topHalfSurfaceDistance+this.altitude;var m=new Float64Array(16);mat4.perspective(m,2*Math.atan(this.height/2/this.altitude),this.width/this.height,.1,farZ);mat4.translate(m,m,[0,0,-this.altitude]);mat4.scale(m,m,[1,-1,1/this.height]);mat4.rotateX(m,m,this._pitch);mat4.rotateZ(m,m,this.angle);mat4.translate(m,m,[-this.x,-this.y,0]);this.projMatrix=m;m=mat4.create();mat4.scale(m,m,[this.width/2,-this.height/2,1]);mat4.translate(m,m,[1,-1,0]);this.pixelMatrix=mat4.multiply(new Float64Array(16),m,this.projMatrix);m=mat4.invert(new Float64Array(16),this.pixelMatrix);if(!m)throw new Error("failed to invert matrix");this.pixelMatrixInverse=m;m=mat2.create();mat2.scale(m,m,[1,Math.cos(this._pitch)]);mat2.rotate(m,m,this.angle);this.lineAntialiasingMatrix=m;var topedgelength=Math.sqrt(this.height*this.height/4*(1+this.altitude*this.altitude));this.lineStretch=(topedgelength+this.height/2*Math.tan(this._pitch))/topedgelength-1}}},{"../data/bucket":17,"../source/tile_coord":61,"../util/interpolate":131,"../util/util":137,"./coordinate":27,"./lng_lat":28,"gl-matrix":154,"point-geometry":196}],31:[function(require,module,exports){"use strict";var WorkerPool=require("./util/worker_pool");var globalWorkerPool;module.exports=function getGlobalWorkerPool(){if(!globalWorkerPool){globalWorkerPool=new WorkerPool}return globalWorkerPool}},{"./util/worker_pool":139}],32:[function(require,module,exports){"use strict";var simplexFont={" ":[16,[]],"!":[10,[5,21,5,7,-1,-1,5,2,4,1,5,0,6,1,5,2]],'"':[16,[4,21,4,14,-1,-1,12,21,12,14]],"#":[21,[11,25,4,-7,-1,-1,17,25,10,-7,-1,-1,4,12,18,12,-1,-1,3,6,17,6]],$:[20,[8,25,8,-4,-1,-1,12,25,12,-4,-1,-1,17,18,15,20,12,21,8,21,5,20,3,18,3,16,4,14,5,13,7,12,13,10,15,9,16,8,17,6,17,3,15,1,12,0,8,0,5,1,3,3]],"%":[24,[21,21,3,0,-1,-1,8,21,10,19,10,17,9,15,7,14,5,14,3,16,3,18,4,20,6,21,8,21,10,20,13,19,16,19,19,20,21,21,-1,-1,17,7,15,6,14,4,14,2,16,0,18,0,20,1,21,3,21,5,19,7,17,7]],"&":[26,[23,12,23,13,22,14,21,14,20,13,19,11,17,6,15,3,13,1,11,0,7,0,5,1,4,2,3,4,3,6,4,8,5,9,12,13,13,14,14,16,14,18,13,20,11,21,9,20,8,18,8,16,9,13,11,10,16,3,18,1,20,0,22,0,23,1,23,2]],"'":[10,[5,19,4,20,5,21,6,20,6,18,5,16,4,15]],"(":[14,[11,25,9,23,7,20,5,16,4,11,4,7,5,2,7,-2,9,-5,11,-7]],")":[14,[3,25,5,23,7,20,9,16,10,11,10,7,9,2,7,-2,5,-5,3,-7]],"*":[16,[8,21,8,9,-1,-1,3,18,13,12,-1,-1,13,18,3,12]],"+":[26,[13,18,13,0,-1,-1,4,9,22,9]],",":[10,[6,1,5,0,4,1,5,2,6,1,6,-1,5,-3,4,-4]],"-":[26,[4,9,22,9]],".":[10,[5,2,4,1,5,0,6,1,5,2]],"/":[22,[20,25,2,-7]],0:[20,[9,21,6,20,4,17,3,12,3,9,4,4,6,1,9,0,11,0,14,1,16,4,17,9,17,12,16,17,14,20,11,21,9,21]],1:[20,[6,17,8,18,11,21,11,0]],2:[20,[4,16,4,17,5,19,6,20,8,21,12,21,14,20,15,19,16,17,16,15,15,13,13,10,3,0,17,0]],3:[20,[5,21,16,21,10,13,13,13,15,12,16,11,17,8,17,6,16,3,14,1,11,0,8,0,5,1,4,2,3,4]],4:[20,[13,21,3,7,18,7,-1,-1,13,21,13,0]],5:[20,[15,21,5,21,4,12,5,13,8,14,11,14,14,13,16,11,17,8,17,6,16,3,14,1,11,0,8,0,5,1,4,2,3,4]],6:[20,[16,18,15,20,12,21,10,21,7,20,5,17,4,12,4,7,5,3,7,1,10,0,11,0,14,1,16,3,17,6,17,7,16,10,14,12,11,13,10,13,7,12,5,10,4,7]],7:[20,[17,21,7,0,-1,-1,3,21,17,21]],8:[20,[8,21,5,20,4,18,4,16,5,14,7,13,11,12,14,11,16,9,17,7,17,4,16,2,15,1,12,0,8,0,5,1,4,2,3,4,3,7,4,9,6,11,9,12,13,13,15,14,16,16,16,18,15,20,12,21,8,21]],9:[20,[16,14,15,11,13,9,10,8,9,8,6,9,4,11,3,14,3,15,4,18,6,20,9,21,10,21,13,20,15,18,16,14,16,9,15,4,13,1,10,0,8,0,5,1,4,3]],":":[10,[5,14,4,13,5,12,6,13,5,14,-1,-1,5,2,4,1,5,0,6,1,5,2]],";":[10,[5,14,4,13,5,12,6,13,5,14,-1,-1,6,1,5,0,4,1,5,2,6,1,6,-1,5,-3,4,-4]],"<":[24,[20,18,4,9,20,0]],"=":[26,[4,12,22,12,-1,-1,4,6,22,6]],">":[24,[4,18,20,9,4,0]],"?":[18,[3,16,3,17,4,19,5,20,7,21,11,21,13,20,14,19,15,17,15,15,14,13,13,12,9,10,9,7,-1,-1,9,2,8,1,9,0,10,1,9,2]],"@":[27,[18,13,17,15,15,16,12,16,10,15,9,14,8,11,8,8,9,6,11,5,14,5,16,6,17,8,-1,-1,12,16,10,14,9,11,9,8,10,6,11,5,-1,-1,18,16,17,8,17,6,19,5,21,5,23,7,24,10,24,12,23,15,22,17,20,19,18,20,15,21,12,21,9,20,7,19,5,17,4,15,3,12,3,9,4,6,5,4,7,2,9,1,12,0,15,0,18,1,20,2,21,3,-1,-1,19,16,18,8,18,6,19,5]],A:[18,[9,21,1,0,-1,-1,9,21,17,0,-1,-1,4,7,14,7]],B:[21,[4,21,4,0,-1,-1,4,21,13,21,16,20,17,19,18,17,18,15,17,13,16,12,13,11,-1,-1,4,11,13,11,16,10,17,9,18,7,18,4,17,2,16,1,13,0,4,0]],C:[21,[18,16,17,18,15,20,13,21,9,21,7,20,5,18,4,16,3,13,3,8,4,5,5,3,7,1,9,0,13,0,15,1,17,3,18,5]],D:[21,[4,21,4,0,-1,-1,4,21,11,21,14,20,16,18,17,16,18,13,18,8,17,5,16,3,14,1,11,0,4,0]],E:[19,[4,21,4,0,-1,-1,4,21,17,21,-1,-1,4,11,12,11,-1,-1,4,0,17,0]],F:[18,[4,21,4,0,-1,-1,4,21,17,21,-1,-1,4,11,12,11]],G:[21,[18,16,17,18,15,20,13,21,9,21,7,20,5,18,4,16,3,13,3,8,4,5,5,3,7,1,9,0,13,0,15,1,17,3,18,5,18,8,-1,-1,13,8,18,8]],H:[22,[4,21,4,0,-1,-1,18,21,18,0,-1,-1,4,11,18,11]],I:[8,[4,21,4,0]],J:[16,[12,21,12,5,11,2,10,1,8,0,6,0,4,1,3,2,2,5,2,7]],K:[21,[4,21,4,0,-1,-1,18,21,4,7,-1,-1,9,12,18,0]],L:[17,[4,21,4,0,-1,-1,4,0,16,0]],M:[24,[4,21,4,0,-1,-1,4,21,12,0,-1,-1,20,21,12,0,-1,-1,20,21,20,0]],N:[22,[4,21,4,0,-1,-1,4,21,18,0,-1,-1,18,21,18,0]],O:[22,[9,21,7,20,5,18,4,16,3,13,3,8,4,5,5,3,7,1,9,0,13,0,15,1,17,3,18,5,19,8,19,13,18,16,17,18,15,20,13,21,9,21]],P:[21,[4,21,4,0,-1,-1,4,21,13,21,16,20,17,19,18,17,18,14,17,12,16,11,13,10,4,10]],Q:[22,[9,21,7,20,5,18,4,16,3,13,3,8,4,5,5,3,7,1,9,0,13,0,15,1,17,3,18,5,19,8,19,13,18,16,17,18,15,20,13,21,9,21,-1,-1,12,4,18,-2]],R:[21,[4,21,4,0,-1,-1,4,21,13,21,16,20,17,19,18,17,18,15,17,13,16,12,13,11,4,11,-1,-1,11,11,18,0]],S:[20,[17,18,15,20,12,21,8,21,5,20,3,18,3,16,4,14,5,13,7,12,13,10,15,9,16,8,17,6,17,3,15,1,12,0,8,0,5,1,3,3]],T:[16,[8,21,8,0,-1,-1,1,21,15,21]],U:[22,[4,21,4,6,5,3,7,1,10,0,12,0,15,1,17,3,18,6,18,21]],V:[18,[1,21,9,0,-1,-1,17,21,9,0]],W:[24,[2,21,7,0,-1,-1,12,21,7,0,-1,-1,12,21,17,0,-1,-1,22,21,17,0]],X:[20,[3,21,17,0,-1,-1,17,21,3,0]],Y:[18,[1,21,9,11,9,0,-1,-1,17,21,9,11]],Z:[20,[17,21,3,0,-1,-1,3,21,17,21,-1,-1,3,0,17,0]],"[":[14,[4,25,4,-7,-1,-1,5,25,5,-7,-1,-1,4,25,11,25,-1,-1,4,-7,11,-7]],"\\":[14,[0,21,14,-3]],"]":[14,[9,25,9,-7,-1,-1,10,25,10,-7,-1,-1,3,25,10,25,-1,-1,3,-7,10,-7]],"^":[16,[6,15,8,18,10,15,-1,-1,3,12,8,17,13,12,-1,-1,8,17,8,0]],_:[16,[0,-2,16,-2]],"`":[10,[6,21,5,20,4,18,4,16,5,15,6,16,5,17]],a:[19,[15,14,15,0,-1,-1,15,11,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],b:[19,[4,21,4,0,-1,-1,4,11,6,13,8,14,11,14,13,13,15,11,16,8,16,6,15,3,13,1,11,0,8,0,6,1,4,3]],c:[18,[15,11,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],d:[19,[15,21,15,0,-1,-1,15,11,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],e:[18,[3,8,15,8,15,10,14,12,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],f:[12,[10,21,8,21,6,20,5,17,5,0,-1,-1,2,14,9,14]],g:[19,[15,14,15,-2,14,-5,13,-6,11,-7,8,-7,6,-6,-1,-1,15,11,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],h:[19,[4,21,4,0,-1,-1,4,10,7,13,9,14,12,14,14,13,15,10,15,0]],i:[8,[3,21,4,20,5,21,4,22,3,21,-1,-1,4,14,4,0]],j:[10,[5,21,6,20,7,21,6,22,5,21,-1,-1,6,14,6,-3,5,-6,3,-7,1,-7]],k:[17,[4,21,4,0,-1,-1,14,14,4,4,-1,-1,8,8,15,0]],l:[8,[4,21,4,0]],m:[30,[4,14,4,0,-1,-1,4,10,7,13,9,14,12,14,14,13,15,10,15,0,-1,-1,15,10,18,13,20,14,23,14,25,13,26,10,26,0]],n:[19,[4,14,4,0,-1,-1,4,10,7,13,9,14,12,14,14,13,15,10,15,0]],o:[19,[8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3,16,6,16,8,15,11,13,13,11,14,8,14]],p:[19,[4,14,4,-7,-1,-1,4,11,6,13,8,14,11,14,13,13,15,11,16,8,16,6,15,3,13,1,11,0,8,0,6,1,4,3]],q:[19,[15,14,15,-7,-1,-1,15,11,13,13,11,14,8,14,6,13,4,11,3,8,3,6,4,3,6,1,8,0,11,0,13,1,15,3]],r:[13,[4,14,4,0,-1,-1,4,8,5,11,7,13,9,14,12,14]],s:[17,[14,11,13,13,10,14,7,14,4,13,3,11,4,9,6,8,11,7,13,6,14,4,14,3,13,1,10,0,7,0,4,1,3,3]],t:[12,[5,21,5,4,6,1,8,0,10,0,-1,-1,2,14,9,14]],u:[19,[4,14,4,4,5,1,7,0,10,0,12,1,15,4,-1,-1,15,14,15,0]],v:[16,[2,14,8,0,-1,-1,14,14,8,0]],w:[22,[3,14,7,0,-1,-1,11,14,7,0,-1,-1,11,14,15,0,-1,-1,19,14,15,0]],x:[17,[3,14,14,0,-1,-1,14,14,3,0]],y:[16,[2,14,8,0,-1,-1,14,14,8,0,6,-4,4,-6,2,-7,1,-7]],z:[17,[14,14,3,0,-1,-1,3,14,14,14,-1,-1,3,0,14,0]],"{":[14,[9,25,7,24,6,23,5,21,5,19,6,17,7,16,8,14,8,12,6,10,-1,-1,7,24,6,22,6,20,7,18,8,17,9,15,9,13,8,11,4,9,8,7,9,5,9,3,8,1,7,0,6,-2,6,-4,7,-6,-1,-1,6,8,8,6,8,4,7,2,6,1,5,-1,5,-3,6,-5,7,-6,9,-7]],"|":[8,[4,25,4,-7]],"}":[14,[5,25,7,24,8,23,9,21,9,19,8,17,7,16,6,14,6,12,8,10,-1,-1,7,24,8,22,8,20,7,18,6,17,5,15,5,13,6,11,10,9,6,7,5,5,5,3,6,1,7,0,8,-2,8,-4,7,-6,-1,-1,8,8,6,6,6,4,7,2,8,1,9,-1,9,-3,8,-5,7,-6,5,-7]],"~":[24,[3,6,3,8,4,11,6,12,8,12,10,11,14,8,16,7,18,7,20,8,21,10,-1,-1,3,8,4,10,6,11,8,11,10,10,14,7,16,6,18,6,20,7,21,10,21,12]]};module.exports=function textVertices(text,left,baseline,scale){scale=scale||1;var strokes=[],i,len,j,len2,glyph,x,y,prev;for(i=0,len=text.length;i<len;i++){glyph=simplexFont[text[i]];if(!glyph)continue;prev=null;for(j=0,len2=glyph[1].length;j<len2;j+=2){if(glyph[1][j]===-1&&glyph[1][j+1]===-1){prev=null}else{x=left+glyph[1][j]*scale;y=baseline-glyph[1][j+1]*scale;if(prev){strokes.push(prev.x,prev.y,x,y)}prev={x:x,y:y}}}left+=glyph[0]*scale}return strokes}},{}],33:[function(require,module,exports){"use strict";var browser=require("./util/browser");var mapboxgl=module.exports={};mapboxgl.version=require("../package.json").version;mapboxgl.workerCount=Math.max(browser.hardwareConcurrency-1,1);mapboxgl.Map=require("./ui/map");mapboxgl.Control=require("./ui/control/control");mapboxgl.NavigationControl=require("./ui/control/navigation_control");mapboxgl.GeolocateControl=require("./ui/control/geolocate_control");mapboxgl.AttributionControl=require("./ui/control/attribution_control");mapboxgl.ScaleControl=require("./ui/control/scale_control");mapboxgl.Popup=require("./ui/popup");mapboxgl.Marker=require("./ui/marker");mapboxgl.Style=require("./style/style");mapboxgl.LngLat=require("./geo/lng_lat");mapboxgl.LngLatBounds=require("./geo/lng_lat_bounds");mapboxgl.Point=require("point-geometry");mapboxgl.Evented=require("./util/evented");mapboxgl.util=require("./util/util");mapboxgl.supported=require("./util/browser").supported;var ajax=require("./util/ajax");mapboxgl.util.getJSON=ajax.getJSON;mapboxgl.util.getArrayBuffer=ajax.getArrayBuffer;var config=require("./util/config");mapboxgl.config=config;Object.defineProperty(mapboxgl,"accessToken",{get:function(){return config.ACCESS_TOKEN},set:function(token){config.ACCESS_TOKEN=token}})},{"../package.json":215,"./geo/lng_lat":28,"./geo/lng_lat_bounds":29,"./style/style":71,"./ui/control/attribution_control":102,"./ui/control/control":103,"./ui/control/geolocate_control":104,"./ui/control/navigation_control":105,"./ui/control/scale_control":106,"./ui/map":115,"./ui/marker":116,"./ui/popup":117,"./util/ajax":119,"./util/browser":120,"./util/config":124,"./util/evented":128,"./util/util":137,"point-geometry":196}],34:[function(require,module,exports){"use strict";module.exports=function(uniforms){var pragmas={define:{},initialize:{}};for(var i=0;i<uniforms.length;i++){var uniform=uniforms[i];var type="{precision} "+(uniform.components===1?"float":"vec"+uniform.components);pragmas.define[uniform.name.slice(2)]="uniform "+type+" "+uniform.name+";\n";pragmas.initialize[uniform.name.slice(2)]=type+" "+uniform.name.slice(2)+" = "+uniform.name+";\n"}return pragmas}},{}],35:[function(require,module,exports){"use strict";var pixelsToTileUnits=require("../source/pixels_to_tile_units");var createUniformPragmas=require("./create_uniform_pragmas");var tileSize=512;module.exports=drawBackground;function drawBackground(painter,sourceCache,layer){var gl=painter.gl;var transform=painter.transform;var color=layer.paint["background-color"];var image=layer.paint["background-pattern"];var opacity=layer.paint["background-opacity"];var program;var imagePosA=image?painter.spriteAtlas.getPosition(image.from,true):null;var imagePosB=image?painter.spriteAtlas.getPosition(image.to,true):null;painter.setDepthSublayer(0);if(imagePosA&&imagePosB){if(painter.isOpaquePass)return;program=painter.useProgram("fillPattern");gl.uniform1i(program.u_image,0);gl.uniform2fv(program.u_pattern_tl_a,imagePosA.tl);gl.uniform2fv(program.u_pattern_br_a,imagePosA.br);gl.uniform2fv(program.u_pattern_tl_b,imagePosB.tl);gl.uniform2fv(program.u_pattern_br_b,imagePosB.br);gl.uniform1f(program.u_opacity,opacity);gl.uniform1f(program.u_mix,image.t);gl.uniform2fv(program.u_pattern_size_a,imagePosA.size);gl.uniform2fv(program.u_pattern_size_b,imagePosB.size);gl.uniform1f(program.u_scale_a,image.fromScale);gl.uniform1f(program.u_scale_b,image.toScale);gl.activeTexture(gl.TEXTURE0);painter.spriteAtlas.bind(gl,true);painter.tileExtentPatternVAO.bind(gl,program,painter.tileExtentBuffer)}else{if(painter.isOpaquePass!==(color[3]===1))return;var pragmas=createUniformPragmas([{name:"u_color",components:4},{name:"u_opacity",components:1}]);program=painter.useProgram("fill",[],pragmas,pragmas);gl.uniform4fv(program.u_color,color);gl.uniform1f(program.u_opacity,opacity);painter.tileExtentVAO.bind(gl,program,painter.tileExtentBuffer)}gl.disable(gl.STENCIL_TEST);var coords=transform.coveringTiles({tileSize:tileSize});for(var c=0;c<coords.length;c++){var coord=coords[c];if(imagePosA&&imagePosB){var tile={coord:coord,tileSize:tileSize};gl.uniform1f(program.u_tile_units_to_pixels,1/pixelsToTileUnits(tile,1,painter.transform.tileZoom));var tileSizeAtNearestZoom=tile.tileSize*Math.pow(2,painter.transform.tileZoom-tile.coord.z);var pixelX=tileSizeAtNearestZoom*(tile.coord.x+coord.w*Math.pow(2,tile.coord.z));var pixelY=tileSizeAtNearestZoom*tile.coord.y;gl.uniform2f(program.u_pixel_coord_upper,pixelX>>16,pixelY>>16);gl.uniform2f(program.u_pixel_coord_lower,pixelX&65535,pixelY&65535)}gl.uniformMatrix4fv(program.u_matrix,false,painter.transform.calculatePosMatrix(coord));gl.drawArrays(gl.TRIANGLE_STRIP,0,painter.tileExtentBuffer.length)}gl.stencilMask(0);gl.stencilFunc(gl.EQUAL,128,128)}},{"../source/pixels_to_tile_units":55,"./create_uniform_pragmas":34}],36:[function(require,module,exports){"use strict";var browser=require("../util/browser");module.exports=drawCircles;function drawCircles(painter,sourceCache,layer,coords){if(painter.isOpaquePass)return;var gl=painter.gl;painter.setDepthSublayer(0);painter.depthMask(false);gl.disable(gl.STENCIL_TEST);for(var i=0;i<coords.length;i++){var coord=coords[i];var tile=sourceCache.getTile(coord);var bucket=tile.getBucket(layer);if(!bucket)continue;var bufferGroups=bucket.bufferGroups.circle;if(!bufferGroups)continue;var programOptions=bucket.paintAttributes.circle[layer.id];var program=painter.useProgram("circle",programOptions.defines,programOptions.vertexPragmas,programOptions.fragmentPragmas);if(layer.paint["circle-pitch-scale"]==="map"){gl.uniform1i(program.u_scale_with_map,true);gl.uniform2f(program.u_extrude_scale,painter.transform.pixelsToGLUnits[0]*painter.transform.altitude,painter.transform.pixelsToGLUnits[1]*painter.transform.altitude)}else{gl.uniform1i(program.u_scale_with_map,false);gl.uniform2fv(program.u_extrude_scale,painter.transform.pixelsToGLUnits)}gl.uniform1f(program.u_devicepixelratio,browser.devicePixelRatio);gl.uniformMatrix4fv(program.u_matrix,false,painter.translatePosMatrix(coord.posMatrix,tile,layer.paint["circle-translate"],layer.paint["circle-translate-anchor"]));bucket.setUniforms(gl,"circle",program,layer,{zoom:painter.transform.zoom});for(var k=0;k<bufferGroups.length;k++){var group=bufferGroups[k];group.vaos[layer.id].bind(gl,program,group.layoutVertexBuffer,group.elementBuffer,group.paintVertexBuffers[layer.id]);gl.drawElements(gl.TRIANGLES,group.elementBuffer.length*3,gl.UNSIGNED_SHORT,0)}}}},{"../util/browser":120}],37:[function(require,module,exports){"use strict";module.exports=drawCollisionDebug;function drawCollisionDebug(painter,sourceCache,layer,coords){var gl=painter.gl;gl.enable(gl.STENCIL_TEST);var program=painter.useProgram("collisionBox");for(var i=0;i<coords.length;i++){var coord=coords[i];var tile=sourceCache.getTile(coord);var bucket=tile.getBucket(layer);if(!bucket)continue;var bufferGroups=bucket.bufferGroups.collisionBox;if(!bufferGroups||!bufferGroups.length)continue;var group=bufferGroups[0];if(group.layoutVertexBuffer.length===0)continue;gl.uniformMatrix4fv(program.u_matrix,false,coord.posMatrix);painter.enableTileClippingMask(coord);painter.lineWidth(1);gl.uniform1f(program.u_scale,Math.pow(2,painter.transform.zoom-tile.coord.z));gl.uniform1f(program.u_zoom,painter.transform.zoom*10);gl.uniform1f(program.u_maxzoom,(tile.coord.z+1)*10);group.vaos[layer.id].bind(gl,program,group.layoutVertexBuffer);gl.drawArrays(gl.LINES,0,group.layoutVertexBuffer.length)}}},{}],38:[function(require,module,exports){"use strict";var textVertices=require("../lib/debugtext");var browser=require("../util/browser");var mat4=require("gl-matrix").mat4;var EXTENT=require("../data/bucket").EXTENT;var Buffer=require("../data/buffer");var VertexArrayObject=require("./vertex_array_object");module.exports=drawDebug;function drawDebug(painter,sourceCache,coords){if(painter.isOpaquePass)return;if(!painter.options.debug)return;for(var i=0;i<coords.length;i++){drawDebugTile(painter,sourceCache,coords[i])}}function drawDebugTile(painter,sourceCache,coord){var gl=painter.gl;gl.disable(gl.STENCIL_TEST);painter.lineWidth(1*browser.devicePixelRatio);var posMatrix=coord.posMatrix;var program=painter.useProgram("debug");gl.uniformMatrix4fv(program.u_matrix,false,posMatrix);gl.uniform4f(program.u_color,1,0,0,1);painter.debugVAO.bind(gl,program,painter.debugBuffer);gl.drawArrays(gl.LINE_STRIP,0,painter.debugBuffer.length);var vertices=textVertices(coord.toString(),50,200,5);var debugTextArray=new painter.PosArray;for(var v=0;v<vertices.length;v+=2){debugTextArray.emplaceBack(vertices[v],vertices[v+1])}var debugTextBuffer=new Buffer(debugTextArray.serialize(),painter.PosArray.serialize(),Buffer.BufferType.VERTEX);var debugTextVAO=new VertexArrayObject;debugTextVAO.bind(gl,program,debugTextBuffer);gl.uniform4f(program.u_color,1,1,1,1);var tileSize=sourceCache.getTile(coord).tileSize;var onePixel=EXTENT/(Math.pow(2,painter.transform.zoom-coord.z)*tileSize);var translations=[[-1,-1],[-1,1],[1,-1],[1,1]];for(var i=0;i<translations.length;i++){var translation=translations[i];gl.uniformMatrix4fv(program.u_matrix,false,mat4.translate([],posMatrix,[onePixel*translation[0],onePixel*translation[1],0]));gl.drawArrays(gl.LINES,0,debugTextBuffer.length)}gl.uniform4f(program.u_color,0,0,0,1);gl.uniformMatrix4fv(program.u_matrix,false,posMatrix);gl.drawArrays(gl.LINES,0,debugTextBuffer.length)}},{"../data/bucket":17,"../data/buffer":23,"../lib/debugtext":32,"../util/browser":120,"./vertex_array_object":49,"gl-matrix":154}],39:[function(require,module,exports){"use strict";var mat3=require("gl-matrix").mat3;var mat4=require("gl-matrix").mat4;var vec3=require("gl-matrix").vec3;var Buffer=require("../data/buffer");var VertexArrayObject=require("./vertex_array_object");var StructArrayType=require("../util/struct_array");var setPattern=require("./set_pattern");module.exports=draw;function draw(painter,source,layer,coords){if(layer.paint["fill-opacity"]===0)return;var gl=painter.gl;gl.disable(gl.STENCIL_TEST);painter.depthMask(true);var texture=new ExtrusionTexture(gl,painter,layer);texture.bindFramebuffer();gl.clear(gl.COLOR_BUFFER_BIT|gl.DEPTH_BUFFER_BIT);for(var i=0;i<coords.length;i++){drawExtrusion(painter,source,layer,coords[i])}texture.unbindFramebuffer();texture.renderToMap()}function ExtrusionTexture(gl,painter,layer){this.gl=gl;this.width=painter.width;this.height=painter.height;this.painter=painter;this.layer=layer;this.texture=null;this.fbo=null;this.fbos=this.painter.preFbos[this.width]&&this.painter.preFbos[this.width][this.height]}ExtrusionTexture.prototype.bindFramebuffer=function(){var gl=this.gl;this.texture=this.painter.getViewportTexture(this.width,this.height);gl.activeTexture(gl.TEXTURE1);if(!this.texture){this.texture=gl.createTexture();gl.bindTexture(gl.TEXTURE_2D,this.texture);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,gl.LINEAR);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,gl.LINEAR);gl.texImage2D(gl.TEXTURE_2D,0,gl.RGBA,this.width,this.height,0,gl.RGBA,gl.UNSIGNED_BYTE,null);this.texture.width=this.width;this.texture.height=this.height}else{gl.bindTexture(gl.TEXTURE_2D,this.texture)}if(!this.fbos){this.fbo=gl.createFramebuffer();var stencil=gl.createRenderbuffer();var depthRenderBuffer=gl.createRenderbuffer();gl.bindRenderbuffer(gl.RENDERBUFFER,stencil);gl.bindRenderbuffer(gl.RENDERBUFFER,depthRenderBuffer);gl.renderbufferStorage(gl.RENDERBUFFER,gl.RGBA4,this.width,this.height);gl.renderbufferStorage(gl.RENDERBUFFER,gl.DEPTH_COMPONENT16,this.width,this.height);gl.bindFramebuffer(gl.FRAMEBUFFER,this.fbo);gl.framebufferRenderbuffer(gl.FRAMEBUFFER,gl.COLOR_ATTACHMENT0,gl.RENDERBUFFER,stencil);gl.framebufferRenderbuffer(gl.FRAMEBUFFER,gl.DEPTH_ATTACHMENT,gl.RENDERBUFFER,depthRenderBuffer);gl.framebufferTexture2D(gl.FRAMEBUFFER,gl.COLOR_ATTACHMENT0,gl.TEXTURE_2D,this.texture,0)}else{this.fbo=this.fbos.pop();gl.bindFramebuffer(gl.FRAMEBUFFER,this.fbo);gl.framebufferTexture2D(gl.FRAMEBUFFER,gl.COLOR_ATTACHMENT0,gl.TEXTURE_2D,this.texture,0)}};ExtrusionTexture.prototype.unbindFramebuffer=function(){this.painter.bindDefaultFramebuffer();if(this.fbos){this.fbos.push(this.fbo)}else{if(!this.painter.preFbos[this.width])this.painter.preFbos[this.width]={};this.painter.preFbos[this.width][this.height]=[this.fbo]}this.painter.saveViewportTexture(this.texture)};ExtrusionTexture.prototype.TextureBoundsArray=new StructArrayType({members:[{name:"a_pos",type:"Int16",components:2}]});ExtrusionTexture.prototype.renderToMap=function(){var gl=this.gl;var painter=this.painter;var program=painter.useProgram("fillExtrudeTexture");gl.activeTexture(gl.TEXTURE0);gl.bindTexture(gl.TEXTURE_2D,this.texture);gl.uniform1f(program.u_opacity,this.layer.paint["fill-opacity"]);gl.uniform1i(program.u_texture,1);gl.uniformMatrix4fv(program.u_matrix,false,mat4.ortho(mat4.create(),0,painter.width,painter.height,0,0,1));gl.disable(gl.DEPTH_TEST);gl.uniform1i(program.u_xdim,painter.width);gl.uniform1i(program.u_ydim,painter.height);var array=new this.TextureBoundsArray;array.emplaceBack(0,0);array.emplaceBack(painter.width,0);array.emplaceBack(0,painter.height);array.emplaceBack(painter.width,painter.height);var buffer=new Buffer(array.serialize(),this.TextureBoundsArray.serialize(),Buffer.BufferType.VERTEX);
var vao=new VertexArrayObject;vao.bind(gl,program,buffer);gl.drawArrays(gl.TRIANGLE_STRIP,0,4);gl.enable(gl.DEPTH_TEST)};function drawExtrusion(painter,source,layer,coord){var tile=source.getTile(coord);var bucket=tile.getBucket(layer);if(!bucket)return;var bufferGroups=bucket.bufferGroups.fillextrusion;if(!bufferGroups)return;if(painter.isOpaquePass)return;var gl=painter.gl;var image=layer.paint["fill-pattern"];var programOptions=bucket.paintAttributes.fillextrusion[layer.id];var program=painter.useProgram(image?"fillExtrudePattern":"fillExtrude",programOptions.defines,programOptions.vertexPragmas,programOptions.fragmentPragmas);if(image){setPattern(image,tile,coord,painter,program,true)}setMatrix(program,painter,coord,tile,layer);setLight(program,painter);bucket.setUniforms(gl,"fillextrusion",program,layer,{zoom:painter.transform.zoom});for(var i=0;i<bufferGroups.length;i++){var group=bufferGroups[i];group.vaos[layer.id].bind(gl,program,group.layoutVertexBuffer,group.elementBuffer,group.paintVertexBuffers[layer.id]);gl.drawElements(gl.TRIANGLES,group.elementBuffer.length*3,gl.UNSIGNED_SHORT,0)}}function setMatrix(program,painter,coord,tile,layer){var zScale=Math.pow(2,painter.transform.zoom)/5e4;painter.gl.uniformMatrix4fv(program.u_matrix,false,mat4.scale(mat4.create(),painter.translatePosMatrix(coord.posMatrix,tile,layer.paint["fill-translate"],layer.paint["fill-translate-anchor"]),[1,1,zScale,1]))}function setLight(program,painter){var gl=painter.gl;var light=painter.style.light;var _lp=light.calculated.position,lightPos=[_lp.x,_lp.y,_lp.z];var lightMat=mat3.create();if(light.calculated.anchor==="viewport")mat3.fromRotation(lightMat,-painter.transform.angle);vec3.transformMat3(lightPos,lightPos,lightMat);gl.uniform3fv(program.u_lightpos,lightPos);gl.uniform1f(program.u_lightintensity,light.calculated.intensity);gl.uniform3fv(program.u_lightcolor,light.calculated.color.slice(0,3))}},{"../data/buffer":23,"../util/struct_array":135,"./set_pattern":48,"./vertex_array_object":49,"gl-matrix":154}],40:[function(require,module,exports){"use strict";var setPattern=require("./set_pattern");module.exports=draw;function draw(painter,sourceCache,layer,coords){var gl=painter.gl;gl.enable(gl.STENCIL_TEST);var isOpaque=!layer.paint["fill-pattern"]&&layer.isPaintValueFeatureConstant("fill-color")&&layer.isPaintValueFeatureConstant("fill-opacity")&&layer.paint["fill-color"][3]===1&&layer.paint["fill-opacity"]===1;if(painter.isOpaquePass===isOpaque){painter.setDepthSublayer(1);for(var i=0;i<coords.length;i++){drawFill(painter,sourceCache,layer,coords[i])}}if(!painter.isOpaquePass&&layer.paint["fill-antialias"]){painter.lineWidth(2);painter.depthMask(false);painter.setDepthSublayer(layer.getPaintProperty("fill-outline-color")?2:0);for(var j=0;j<coords.length;j++){drawStroke(painter,sourceCache,layer,coords[j])}}}function drawFill(painter,sourceCache,layer,coord){var tile=sourceCache.getTile(coord);var bucket=tile.getBucket(layer);if(!bucket)return;var bufferGroups=bucket.bufferGroups.fill;if(!bufferGroups)return;var gl=painter.gl;var image=layer.paint["fill-pattern"];var program;if(!image){var programOptions=bucket.paintAttributes.fill[layer.id];program=painter.useProgram("fill",programOptions.defines,programOptions.vertexPragmas,programOptions.fragmentPragmas);bucket.setUniforms(gl,"fill",program,layer,{zoom:painter.transform.zoom})}else{program=painter.useProgram("fillPattern");setPattern(image,tile,coord,painter,program,false);gl.uniform1f(program.u_opacity,layer.paint["fill-opacity"]);gl.activeTexture(gl.TEXTURE0);painter.spriteAtlas.bind(gl,true)}gl.uniformMatrix4fv(program.u_matrix,false,painter.translatePosMatrix(coord.posMatrix,tile,layer.paint["fill-translate"],layer.paint["fill-translate-anchor"]));painter.enableTileClippingMask(coord);for(var i=0;i<bufferGroups.length;i++){var group=bufferGroups[i];group.vaos[layer.id].bind(gl,program,group.layoutVertexBuffer,group.elementBuffer,group.paintVertexBuffers[layer.id]);gl.drawElements(gl.TRIANGLES,group.elementBuffer.length,gl.UNSIGNED_SHORT,0)}}function drawStroke(painter,sourceCache,layer,coord){var tile=sourceCache.getTile(coord);var bucket=tile.getBucket(layer);if(!bucket)return;var bufferGroups=bucket.bufferGroups.fill;if(!bufferGroups)return;var gl=painter.gl;var image=layer.paint["fill-pattern"];var isOutlineColorDefined=layer.getPaintProperty("fill-outline-color");var program;if(image&&!isOutlineColorDefined){program=painter.useProgram("fillOutlinePattern");gl.uniform2f(program.u_world,gl.drawingBufferWidth,gl.drawingBufferHeight)}else{var programOptions=bucket.paintAttributes.fill[layer.id];program=painter.useProgram("fillOutline",programOptions.defines,programOptions.vertexPragmas,programOptions.fragmentPragmas);gl.uniform2f(program.u_world,gl.drawingBufferWidth,gl.drawingBufferHeight);bucket.setUniforms(gl,"fill",program,layer,{zoom:painter.transform.zoom})}gl.uniform1f(program.u_opacity,layer.paint["fill-opacity"]);gl.uniformMatrix4fv(program.u_matrix,false,painter.translatePosMatrix(coord.posMatrix,tile,layer.paint["fill-translate"],layer.paint["fill-translate-anchor"]));if(image){setPattern(image,tile,coord,painter,program,false)}painter.enableTileClippingMask(coord);for(var k=0;k<bufferGroups.length;k++){var group=bufferGroups[k];group.secondVaos[layer.id].bind(gl,program,group.layoutVertexBuffer,group.elementBuffer2,group.paintVertexBuffers[layer.id]);gl.drawElements(gl.LINES,group.elementBuffer2.length*2,gl.UNSIGNED_SHORT,0)}}},{"./set_pattern":48}],41:[function(require,module,exports){"use strict";var browser=require("../util/browser");var pixelsToTileUnits=require("../source/pixels_to_tile_units");module.exports=function drawLine(painter,sourceCache,layer,coords){if(painter.isOpaquePass)return;painter.setDepthSublayer(0);painter.depthMask(false);var gl=painter.gl;gl.enable(gl.STENCIL_TEST);if(layer.paint["line-width"]<=0)return;for(var k=0;k<coords.length;k++){drawLineTile(painter,sourceCache,layer,coords[k])}};function drawLineTile(painter,sourceCache,layer,coord){var tile=sourceCache.getTile(coord);var bucket=tile.getBucket(layer);if(!bucket)return;var bufferGroups=bucket.bufferGroups.line;if(!bufferGroups)return;var gl=painter.gl;var dasharray=layer.paint["line-dasharray"];var image=layer.paint["line-pattern"];var programOptions=bucket.paintAttributes.line[layer.id];var program=painter.useProgram(dasharray?"lineSDF":image?"linePattern":"line",programOptions.defines,programOptions.vertexPragmas,programOptions.fragmentPragmas);if(!image){gl.uniform4fv(program.u_color,layer.paint["line-color"])}var posA,posB,imagePosA,imagePosB;if(dasharray){posA=painter.lineAtlas.getDash(dasharray.from,layer.layout["line-cap"]==="round");posB=painter.lineAtlas.getDash(dasharray.to,layer.layout["line-cap"]==="round");gl.uniform1i(program.u_image,0);gl.activeTexture(gl.TEXTURE0);painter.lineAtlas.bind(gl);gl.uniform1f(program.u_tex_y_a,posA.y);gl.uniform1f(program.u_tex_y_b,posB.y);gl.uniform1f(program.u_mix,dasharray.t)}else if(image){imagePosA=painter.spriteAtlas.getPosition(image.from,true);imagePosB=painter.spriteAtlas.getPosition(image.to,true);if(!imagePosA||!imagePosB)return;gl.uniform1i(program.u_image,0);gl.activeTexture(gl.TEXTURE0);painter.spriteAtlas.bind(gl,true);gl.uniform2fv(program.u_pattern_tl_a,imagePosA.tl);gl.uniform2fv(program.u_pattern_br_a,imagePosA.br);gl.uniform2fv(program.u_pattern_tl_b,imagePosB.tl);gl.uniform2fv(program.u_pattern_br_b,imagePosB.br);gl.uniform1f(program.u_fade,image.t)}var antialiasing=1/browser.devicePixelRatio;gl.uniform1f(program.u_linewidth,layer.paint["line-width"]/2);gl.uniform1f(program.u_gapwidth,layer.paint["line-gap-width"]/2);gl.uniform1f(program.u_antialiasing,antialiasing/2);gl.uniform1f(program.u_blur,layer.paint["line-blur"]+antialiasing);gl.uniform1f(program.u_opacity,layer.paint["line-opacity"]);gl.uniformMatrix2fv(program.u_antialiasingmatrix,false,painter.transform.lineAntialiasingMatrix);gl.uniform1f(program.u_offset,-layer.paint["line-offset"]);gl.uniform1f(program.u_extra,painter.transform.lineStretch);painter.enableTileClippingMask(coord);var posMatrix=painter.translatePosMatrix(coord.posMatrix,tile,layer.paint["line-translate"],layer.paint["line-translate-anchor"]);gl.uniformMatrix4fv(program.u_matrix,false,posMatrix);if(dasharray){var widthA=posA.width*dasharray.fromScale;var widthB=posB.width*dasharray.toScale;var scaleA=[1/pixelsToTileUnits(tile,widthA,painter.transform.tileZoom),-posA.height/2];var scaleB=[1/pixelsToTileUnits(tile,widthB,painter.transform.tileZoom),-posB.height/2];var gamma=painter.lineAtlas.width/(Math.min(widthA,widthB)*256*browser.devicePixelRatio)/2;gl.uniform2fv(program.u_patternscale_a,scaleA);gl.uniform2fv(program.u_patternscale_b,scaleB);gl.uniform1f(program.u_sdfgamma,gamma)}else if(image){gl.uniform2fv(program.u_pattern_size_a,[pixelsToTileUnits(tile,imagePosA.size[0]*image.fromScale,painter.transform.tileZoom),imagePosB.size[1]]);gl.uniform2fv(program.u_pattern_size_b,[pixelsToTileUnits(tile,imagePosB.size[0]*image.toScale,painter.transform.tileZoom),imagePosB.size[1]])}gl.uniform1f(program.u_ratio,1/pixelsToTileUnits(tile,1,painter.transform.zoom));bucket.setUniforms(gl,"line",program,layer,{zoom:painter.transform.zoom});for(var i=0;i<bufferGroups.length;i++){var group=bufferGroups[i];group.vaos[layer.id].bind(gl,program,group.layoutVertexBuffer,group.elementBuffer,group.paintVertexBuffers[layer.id]);gl.drawElements(gl.TRIANGLES,group.elementBuffer.length*3,gl.UNSIGNED_SHORT,0)}}},{"../source/pixels_to_tile_units":55,"../util/browser":120}],42:[function(require,module,exports){"use strict";var util=require("../util/util");var StructArrayType=require("../util/struct_array");module.exports=drawRaster;function drawRaster(painter,sourceCache,layer,coords){if(painter.isOpaquePass)return;var gl=painter.gl;gl.enable(gl.DEPTH_TEST);painter.depthMask(true);gl.depthFunc(gl.LESS);var minTileZ=coords.length&&coords[0].z;for(var i=0;i<coords.length;i++){var coord=coords[i];painter.setDepthSublayer(coord.z-minTileZ);drawRasterTile(painter,sourceCache,layer,coord)}gl.depthFunc(gl.LEQUAL)}drawRaster.RasterBoundsArray=new StructArrayType({members:[{name:"a_pos",type:"Int16",components:2},{name:"a_texture_pos",type:"Int16",components:2}]});function drawRasterTile(painter,sourceCache,layer,coord){var gl=painter.gl;gl.disable(gl.STENCIL_TEST);var tile=sourceCache.getTile(coord);var posMatrix=painter.transform.calculatePosMatrix(coord,sourceCache.getSource().maxzoom);var program=painter.useProgram("raster");gl.uniformMatrix4fv(program.u_matrix,false,posMatrix);gl.uniform1f(program.u_brightness_low,layer.paint["raster-brightness-min"]);gl.uniform1f(program.u_brightness_high,layer.paint["raster-brightness-max"]);gl.uniform1f(program.u_saturation_factor,saturationFactor(layer.paint["raster-saturation"]));gl.uniform1f(program.u_contrast_factor,contrastFactor(layer.paint["raster-contrast"]));gl.uniform3fv(program.u_spin_weights,spinWeights(layer.paint["raster-hue-rotate"]));var parentTile=tile.sourceCache&&tile.sourceCache.findLoadedParent(coord,0,{}),opacities=getOpacities(tile,parentTile,layer,painter.transform);var parentScaleBy,parentTL;gl.activeTexture(gl.TEXTURE0);gl.bindTexture(gl.TEXTURE_2D,tile.texture);gl.activeTexture(gl.TEXTURE1);if(parentTile){gl.bindTexture(gl.TEXTURE_2D,parentTile.texture);parentScaleBy=Math.pow(2,parentTile.coord.z-tile.coord.z);parentTL=[tile.coord.x*parentScaleBy%1,tile.coord.y*parentScaleBy%1]}else{gl.bindTexture(gl.TEXTURE_2D,tile.texture)}gl.uniform2fv(program.u_tl_parent,parentTL||[0,0]);gl.uniform1f(program.u_scale_parent,parentScaleBy||1);gl.uniform1f(program.u_buffer_scale,1);gl.uniform1f(program.u_opacity0,opacities[0]);gl.uniform1f(program.u_opacity1,opacities[1]);gl.uniform1i(program.u_image0,0);gl.uniform1i(program.u_image1,1);var buffer=tile.boundsBuffer||painter.rasterBoundsBuffer;var vao=tile.boundsVAO||painter.rasterBoundsVAO;vao.bind(gl,program,buffer);gl.drawArrays(gl.TRIANGLE_STRIP,0,buffer.length)}function spinWeights(angle){angle*=Math.PI/180;var s=Math.sin(angle);var c=Math.cos(angle);return[(2*c+1)/3,(-Math.sqrt(3)*s-c+1)/3,(Math.sqrt(3)*s-c+1)/3]}function contrastFactor(contrast){return contrast>0?1/(1-contrast):1+contrast}function saturationFactor(saturation){return saturation>0?1-1/(1.001-saturation):-saturation}function getOpacities(tile,parentTile,layer,transform){var opacities=[1,0];var fadeDuration=layer.paint["raster-fade-duration"];if(tile.sourceCache&&fadeDuration>0){var now=Date.now();var sinceTile=(now-tile.timeAdded)/fadeDuration;var sinceParent=parentTile?(now-parentTile.timeAdded)/fadeDuration:-1;var source=tile.sourceCache.getSource();var idealZ=transform.coveringZoomLevel({tileSize:source.tileSize,roundZoom:source.roundZoom});var fadeIn=!parentTile||Math.abs(parentTile.coord.z-idealZ)>Math.abs(tile.coord.z-idealZ);opacities[0]=util.clamp(fadeIn?sinceTile:1-sinceParent,0,1);opacities[1]=parentTile?1-opacities[0]:0}var opacity=layer.paint["raster-opacity"];opacities[0]*=opacity;opacities[1]*=opacity;return opacities}},{"../util/struct_array":135,"../util/util":137}],43:[function(require,module,exports){"use strict";var browser=require("../util/browser");var drawCollisionDebug=require("./draw_collision_debug");var pixelsToTileUnits=require("../source/pixels_to_tile_units");module.exports=drawSymbols;function drawSymbols(painter,sourceCache,layer,coords){if(painter.isOpaquePass)return;var drawAcrossEdges=!(layer.layout["text-allow-overlap"]||layer.layout["icon-allow-overlap"]||layer.layout["text-ignore-placement"]||layer.layout["icon-ignore-placement"]);var gl=painter.gl;if(drawAcrossEdges){gl.disable(gl.STENCIL_TEST)}else{gl.enable(gl.STENCIL_TEST)}drawLayerSymbols(painter,sourceCache,layer,coords,false,layer.paint["icon-translate"],layer.paint["icon-translate-anchor"],layer.layout["icon-rotation-alignment"],layer.layout["icon-rotation-alignment"],layer.layout["icon-size"],layer.paint["icon-halo-width"],layer.paint["icon-halo-color"],layer.paint["icon-halo-blur"],layer.paint["icon-opacity"],layer.paint["icon-color"]);drawLayerSymbols(painter,sourceCache,layer,coords,true,layer.paint["text-translate"],layer.paint["text-translate-anchor"],layer.layout["text-rotation-alignment"],layer.layout["text-pitch-alignment"],layer.layout["text-size"],layer.paint["text-halo-width"],layer.paint["text-halo-color"],layer.paint["text-halo-blur"],layer.paint["text-opacity"],layer.paint["text-color"]);if(sourceCache.map.showCollisionBoxes){drawCollisionDebug(painter,sourceCache,layer,coords)}}function drawLayerSymbols(painter,sourceCache,layer,coords,isText,translate,translateAnchor,rotationAlignment,pitchAlignment,size,haloWidth,haloColor,haloBlur,opacity,color){var gl=painter.gl;painter.setDepthSublayer(0);painter.depthMask(false);if(pitchAlignment==="map"){gl.enable(gl.DEPTH_TEST)}else{gl.disable(gl.DEPTH_TEST)}for(var j=0;j<coords.length;j++){var tile=sourceCache.getTile(coords[j]);var bucket=tile.getBucket(layer);if(!bucket)continue;var bothBufferGroups=bucket.bufferGroups;var bufferGroups=isText?bothBufferGroups.glyph:bothBufferGroups.icon;if(!bufferGroups.length)continue;painter.enableTileClippingMask(coords[j]);drawSymbol(painter,layer,coords[j].posMatrix,tile,bucket,bufferGroups,isText,isText||bucket.sdfIcons,!isText&&bucket.iconsNeedLinear,isText?bucket.adjustedTextSize:bucket.adjustedIconSize,bucket.fontstack,translate,translateAnchor,rotationAlignment,pitchAlignment,size,haloWidth,haloColor,haloBlur,opacity,color)}gl.enable(gl.DEPTH_TEST)}function drawSymbol(painter,layer,posMatrix,tile,bucket,bufferGroups,isText,sdf,iconsNeedLinear,adjustedSize,fontstack,translate,translateAnchor,rotationAlignment,pitchAlignment,size,haloWidth,haloColor,haloBlur,opacity,color){var gl=painter.gl;var tr=painter.transform;var rotateWithMap=rotationAlignment==="map";var pitchWithMap=pitchAlignment==="map";var defaultSize=isText?24:1;var fontScale=size/defaultSize;var extrudeScale,s,gammaScale;if(pitchWithMap){s=pixelsToTileUnits(tile,1,painter.transform.zoom)*fontScale;gammaScale=1/Math.cos(tr._pitch);extrudeScale=[s,s]}else{s=painter.transform.altitude*fontScale;gammaScale=1;extrudeScale=[tr.pixelsToGLUnits[0]*s,tr.pixelsToGLUnits[1]*s]}if(!isText&&!painter.style.sprite.loaded())return;var program=painter.useProgram(sdf?"symbolSDF":"symbolIcon");gl.uniformMatrix4fv(program.u_matrix,false,painter.translatePosMatrix(posMatrix,tile,translate,translateAnchor));gl.uniform1i(program.u_rotate_with_map,rotateWithMap);gl.uniform1i(program.u_pitch_with_map,pitchWithMap);gl.uniform2fv(program.u_extrude_scale,extrudeScale);gl.activeTexture(gl.TEXTURE0);gl.uniform1i(program.u_texture,0);if(isText){var glyphAtlas=fontstack&&painter.glyphSource.getGlyphAtlas(fontstack);if(!glyphAtlas)return;glyphAtlas.updateTexture(gl);gl.uniform2f(program.u_texsize,glyphAtlas.width/4,glyphAtlas.height/4)}else{var mapMoving=painter.options.rotating||painter.options.zooming;var iconScaled=fontScale!==1||browser.devicePixelRatio!==painter.spriteAtlas.pixelRatio||iconsNeedLinear;var iconTransformed=pitchWithMap||painter.transform.pitch;painter.spriteAtlas.bind(gl,sdf||mapMoving||iconScaled||iconTransformed);gl.uniform2f(program.u_texsize,painter.spriteAtlas.width/4,painter.spriteAtlas.height/4)}var zoomAdjust=Math.log(size/adjustedSize)/Math.LN2||0;gl.uniform1f(program.u_zoom,(painter.transform.zoom-zoomAdjust)*10);gl.activeTexture(gl.TEXTURE1);painter.frameHistory.bind(gl);gl.uniform1i(program.u_fadetexture,1);var group;if(sdf){var sdfPx=8;var blurOffset=1.19;var haloOffset=6;var gamma=.105*defaultSize/size/browser.devicePixelRatio;if(haloWidth){gl.uniform1f(program.u_gamma,(haloBlur*blurOffset/fontScale/sdfPx+gamma)*gammaScale);gl.uniform4fv(program.u_color,haloColor);gl.uniform1f(program.u_opacity,opacity);gl.uniform1f(program.u_buffer,(haloOffset-haloWidth/fontScale)/sdfPx);for(var j=0;j<bufferGroups.length;j++){group=bufferGroups[j];group.vaos[layer.id].bind(gl,program,group.layoutVertexBuffer,group.elementBuffer);gl.drawElements(gl.TRIANGLES,group.elementBuffer.length*3,gl.UNSIGNED_SHORT,0)}}gl.uniform1f(program.u_gamma,gamma*gammaScale);gl.uniform4fv(program.u_color,color);gl.uniform1f(program.u_opacity,opacity);gl.uniform1f(program.u_buffer,(256-64)/256);gl.uniform1f(program.u_pitch,tr.pitch/360*2*Math.PI);gl.uniform1f(program.u_bearing,tr.bearing/360*2*Math.PI);gl.uniform1f(program.u_aspect_ratio,tr.width/tr.height);for(var i=0;i<bufferGroups.length;i++){group=bufferGroups[i];group.vaos[layer.id].bind(gl,program,group.layoutVertexBuffer,group.elementBuffer);gl.drawElements(gl.TRIANGLES,group.elementBuffer.length*3,gl.UNSIGNED_SHORT,0)}}else{gl.uniform1f(program.u_opacity,opacity);for(var k=0;k<bufferGroups.length;k++){group=bufferGroups[k];group.vaos[layer.id].bind(gl,program,group.layoutVertexBuffer,group.elementBuffer);gl.drawElements(gl.TRIANGLES,group.elementBuffer.length*3,gl.UNSIGNED_SHORT,0)}}}},{"../source/pixels_to_tile_units":55,"../util/browser":120,"./draw_collision_debug":37}],44:[function(require,module,exports){"use strict";module.exports=FrameHistory;function FrameHistory(){this.changeTimes=new Float64Array(256);this.changeOpacities=new Uint8Array(256);this.opacities=new Uint8ClampedArray(256);this.array=new Uint8Array(this.opacities.buffer);this.fadeDuration=300;this.previousZoom=0;this.firstFrame=true}FrameHistory.prototype.record=function(zoom){var now=Date.now();if(this.firstFrame){now=0;this.firstFrame=false}zoom=Math.floor(zoom*10);var z;if(zoom<this.previousZoom){for(z=zoom+1;z<=this.previousZoom;z++){this.changeTimes[z]=now;this.changeOpacities[z]=this.opacities[z]}}else{for(z=zoom;z>this.previousZoom;z--){this.changeTimes[z]=now;this.changeOpacities[z]=this.opacities[z]}}for(z=0;z<256;z++){var timeSince=now-this.changeTimes[z];var opacityChange=timeSince/this.fadeDuration*255;if(z<=zoom){this.opacities[z]=this.changeOpacities[z]+opacityChange}else{this.opacities[z]=this.changeOpacities[z]-opacityChange}}this.changed=true;this.previousZoom=zoom};FrameHistory.prototype.bind=function(gl){if(!this.texture){this.texture=gl.createTexture();gl.bindTexture(gl.TEXTURE_2D,this.texture);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,gl.NEAREST);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,gl.NEAREST);gl.texImage2D(gl.TEXTURE_2D,0,gl.ALPHA,256,1,0,gl.ALPHA,gl.UNSIGNED_BYTE,this.array)}else{gl.bindTexture(gl.TEXTURE_2D,this.texture);if(this.changed){gl.texSubImage2D(gl.TEXTURE_2D,0,0,0,256,1,gl.ALPHA,gl.UNSIGNED_BYTE,this.array);this.changed=false}}}},{}],45:[function(require,module,exports){"use strict";var util=require("../util/util");module.exports=LineAtlas;function LineAtlas(width,height){this.width=width;this.height=height;this.nextRow=0;this.bytes=4;this.data=new Uint8Array(this.width*this.height*this.bytes);this.positions={}}LineAtlas.prototype.setSprite=function(sprite){this.sprite=sprite};LineAtlas.prototype.getDash=function(dasharray,round){var key=dasharray.join(",")+round;if(!this.positions[key]){this.positions[key]=this.addDash(dasharray,round)}return this.positions[key]};LineAtlas.prototype.addDash=function(dasharray,round){var n=round?7:0;var height=2*n+1;var offset=128;if(this.nextRow+height>this.height){util.warnOnce("LineAtlas out of space");return null}var length=0;for(var i=0;i<dasharray.length;i++){length+=dasharray[i]}var stretch=this.width/length;var halfWidth=stretch/2;var oddLength=dasharray.length%2===1;for(var y=-n;y<=n;y++){var row=this.nextRow+n+y;var index=this.width*row;var left=oddLength?-dasharray[dasharray.length-1]:0;var right=dasharray[0];var partIndex=1;for(var x=0;x<this.width;x++){while(right<x/stretch){left=right;right=right+dasharray[partIndex];if(oddLength&&partIndex===dasharray.length-1){right+=dasharray[0]}partIndex++}var distLeft=Math.abs(x-left*stretch);var distRight=Math.abs(x-right*stretch);var dist=Math.min(distLeft,distRight);var inside=partIndex%2===1;var signedDistance;if(round){var distMiddle=n?y/n*(halfWidth+1):0;if(inside){var distEdge=halfWidth-Math.abs(distMiddle);signedDistance=Math.sqrt(dist*dist+distEdge*distEdge)}else{signedDistance=halfWidth-Math.sqrt(dist*dist+distMiddle*distMiddle)}}else{signedDistance=(inside?1:-1)*dist}this.data[3+(index+x)*4]=Math.max(0,Math.min(255,signedDistance+offset))}}var pos={y:(this.nextRow+n+.5)/this.height,height:2*n/this.height,width:length};this.nextRow+=height;this.dirty=true;return pos};LineAtlas.prototype.bind=function(gl){if(!this.texture){this.texture=gl.createTexture();gl.bindTexture(gl.TEXTURE_2D,this.texture);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.REPEAT);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.REPEAT);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,gl.LINEAR);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,gl.LINEAR);gl.texImage2D(gl.TEXTURE_2D,0,gl.RGBA,this.width,this.height,0,gl.RGBA,gl.UNSIGNED_BYTE,this.data)}else{gl.bindTexture(gl.TEXTURE_2D,this.texture);if(this.dirty){this.dirty=false;gl.texSubImage2D(gl.TEXTURE_2D,0,0,0,this.width,this.height,gl.RGBA,gl.UNSIGNED_BYTE,this.data)}}}},{"../util/util":137}],46:[function(require,module,exports){"use strict";var browser=require("../util/browser");var mat4=require("gl-matrix").mat4;var FrameHistory=require("./frame_history");var SourceCache=require("../source/source_cache");var EXTENT=require("../data/bucket").EXTENT;var pixelsToTileUnits=require("../source/pixels_to_tile_units");var util=require("../util/util");var StructArrayType=require("../util/struct_array");var Buffer=require("../data/buffer");var VertexArrayObject=require("./vertex_array_object");var RasterBoundsArray=require("./draw_raster").RasterBoundsArray;var createUniformPragmas=require("./create_uniform_pragmas");module.exports=Painter;function Painter(gl,transform){this.gl=gl;this.transform=transform;this.reusableTextures={};this.preFbos={};this.frameHistory=new FrameHistory;this.setup();this.numSublayers=SourceCache.maxUnderzooming+SourceCache.maxOverzooming+1;this.depthEpsilon=1/Math.pow(2,16);this.lineWidthRange=gl.getParameter(gl.ALIASED_LINE_WIDTH_RANGE)}util.extend(Painter.prototype,require("./painter/use_program"));Painter.prototype.resize=function(width,height){var gl=this.gl;this.width=width*browser.devicePixelRatio;this.height=height*browser.devicePixelRatio;gl.viewport(0,0,this.width,this.height)};Painter.prototype.setup=function(){var gl=this.gl;gl.verbose=true;gl.enable(gl.BLEND);gl.blendFunc(gl.ONE,gl.ONE_MINUS_SRC_ALPHA);gl.enable(gl.STENCIL_TEST);gl.enable(gl.DEPTH_TEST);gl.depthFunc(gl.LEQUAL);this._depthMask=false;gl.depthMask(false);var PosArray=this.PosArray=new StructArrayType({members:[{name:"a_pos",type:"Int16",components:2}]});var tileExtentArray=new PosArray;tileExtentArray.emplaceBack(0,0);tileExtentArray.emplaceBack(EXTENT,0);tileExtentArray.emplaceBack(0,EXTENT);tileExtentArray.emplaceBack(EXTENT,EXTENT);this.tileExtentBuffer=new Buffer(tileExtentArray.serialize(),PosArray.serialize(),Buffer.BufferType.VERTEX);this.tileExtentVAO=new VertexArrayObject;this.tileExtentPatternVAO=new VertexArrayObject;var debugArray=new PosArray;debugArray.emplaceBack(0,0);debugArray.emplaceBack(EXTENT,0);debugArray.emplaceBack(EXTENT,EXTENT);debugArray.emplaceBack(0,EXTENT);debugArray.emplaceBack(0,0);this.debugBuffer=new Buffer(debugArray.serialize(),PosArray.serialize(),Buffer.BufferType.VERTEX);this.debugVAO=new VertexArrayObject;var rasterBoundsArray=new RasterBoundsArray;rasterBoundsArray.emplaceBack(0,0,0,0);rasterBoundsArray.emplaceBack(EXTENT,0,32767,0);rasterBoundsArray.emplaceBack(0,EXTENT,0,32767);rasterBoundsArray.emplaceBack(EXTENT,EXTENT,32767,32767);this.rasterBoundsBuffer=new Buffer(rasterBoundsArray.serialize(),RasterBoundsArray.serialize(),Buffer.BufferType.VERTEX);this.rasterBoundsVAO=new VertexArrayObject};Painter.prototype.clearColor=function(){var gl=this.gl;gl.clearColor(0,0,0,0);gl.clear(gl.COLOR_BUFFER_BIT)};Painter.prototype.clearStencil=function(){var gl=this.gl;gl.clearStencil(0);gl.stencilMask(255);gl.clear(gl.STENCIL_BUFFER_BIT)};Painter.prototype.clearDepth=function(){var gl=this.gl;gl.clearDepth(1);this.depthMask(true);gl.clear(gl.DEPTH_BUFFER_BIT)};Painter.prototype._renderTileClippingMasks=function(coords){var gl=this.gl;gl.colorMask(false,false,false,false);this.depthMask(false);gl.disable(gl.DEPTH_TEST);gl.enable(gl.STENCIL_TEST);gl.stencilMask(248);gl.stencilOp(gl.KEEP,gl.KEEP,gl.REPLACE);var idNext=1;this._tileClippingMaskIDs={};for(var i=0;i<coords.length;i++){var coord=coords[i];var id=this._tileClippingMaskIDs[coord.id]=idNext++<<3;gl.stencilFunc(gl.ALWAYS,id,248);var pragmas=createUniformPragmas([{name:"u_color",components:4},{name:"u_opacity",components:1}]);var program=this.useProgram("fill",[],pragmas,pragmas);gl.uniformMatrix4fv(program.u_matrix,false,coord.posMatrix);this.tileExtentVAO.bind(gl,program,this.tileExtentBuffer);gl.drawArrays(gl.TRIANGLE_STRIP,0,this.tileExtentBuffer.length)}gl.stencilMask(0);gl.colorMask(true,true,true,true);this.depthMask(true);gl.enable(gl.DEPTH_TEST)};Painter.prototype.enableTileClippingMask=function(coord){var gl=this.gl;gl.stencilFunc(gl.EQUAL,this._tileClippingMaskIDs[coord.id],248)};Painter.prototype.prepareBuffers=function(){};Painter.prototype.bindDefaultFramebuffer=function(){var gl=this.gl;gl.bindFramebuffer(gl.FRAMEBUFFER,null)};var draw={symbol:require("./draw_symbol"),circle:require("./draw_circle"),line:require("./draw_line"),fill:require("./draw_fill"),extrusion:require("./draw_extrusion"),raster:require("./draw_raster"),background:require("./draw_background"),debug:require("./draw_debug")};Painter.prototype.render=function(style,options){this.style=style;this.options=options;this.lineAtlas=style.lineAtlas;this.spriteAtlas=style.spriteAtlas;this.spriteAtlas.setSprite(style.sprite);this.glyphSource=style.glyphSource;this.frameHistory.record(this.transform.zoom);this.prepareBuffers();this.clearColor();this.clearDepth();this.showOverdrawInspector(options.showOverdrawInspector);this.depthRange=(style._order.length+2)*this.numSublayers*this.depthEpsilon;this.renderPass({isOpaquePass:true});this.renderPass({isOpaquePass:false})};Painter.prototype.renderPass=function(options){var groups=this.style._groups;var isOpaquePass=options.isOpaquePass;this.currentLayer=isOpaquePass?this.style._order.length:-1;for(var i=0;i<groups.length;i++){var group=groups[isOpaquePass?groups.length-1-i:i];var sourceCache=this.style.sourceCaches[group.source];var j;var coords=[];if(sourceCache){coords=sourceCache.getVisibleCoordinates();for(j=0;j<coords.length;j++){coords[j].posMatrix=this.transform.calculatePosMatrix(coords[j],sourceCache.getSource().maxzoom)}this.clearStencil();if(sourceCache.prepare)sourceCache.prepare();if(sourceCache.getSource().isTileClipped){this._renderTileClippingMasks(coords)}}if(isOpaquePass){if(!this._showOverdrawInspector){this.gl.disable(this.gl.BLEND)}this.isOpaquePass=true}else{this.gl.enable(this.gl.BLEND);this.isOpaquePass=false;coords.reverse()}for(j=0;j<group.length;j++){var layer=group[isOpaquePass?group.length-1-j:j];this.currentLayer+=isOpaquePass?-1:1;this.renderLayer(this,sourceCache,layer,coords)}if(sourceCache){draw.debug(this,sourceCache,coords)}}};Painter.prototype.depthMask=function(mask){if(mask!==this._depthMask){this._depthMask=mask;this.gl.depthMask(mask)}};Painter.prototype.renderLayer=function(painter,sourceCache,layer,coords){if(layer.isHidden(this.transform.zoom))return;if(layer.type!=="background"&&!coords.length)return;this.id=layer.id;var type=layer.type;if(type==="fill"&&(!layer.isPaintValueFeatureConstant("fill-extrude-height")||!layer.isPaintValueZoomConstant("fill-extrude-height")||layer.getPaintValue("fill-extrude-height")!==0)){type="extrusion"}draw[type](painter,sourceCache,layer,coords)};Painter.prototype.setDepthSublayer=function(n){var farDepth=1-((1+this.currentLayer)*this.numSublayers+n)*this.depthEpsilon;var nearDepth=farDepth-1+this.depthRange;this.gl.depthRange(nearDepth,farDepth)};Painter.prototype.translatePosMatrix=function(matrix,tile,translate,anchor){if(!translate[0]&&!translate[1])return matrix;if(anchor==="viewport"){var sinA=Math.sin(-this.transform.angle);var cosA=Math.cos(-this.transform.angle);translate=[translate[0]*cosA-translate[1]*sinA,translate[0]*sinA+translate[1]*cosA]}var translation=[pixelsToTileUnits(tile,translate[0],this.transform.zoom),pixelsToTileUnits(tile,translate[1],this.transform.zoom),0];var translatedMatrix=new Float32Array(16);mat4.translate(translatedMatrix,matrix,translation);return translatedMatrix};Painter.prototype.saveTileTexture=function(texture){var textures=this.reusableTextures[texture.size];if(!textures){this.reusableTextures[texture.size]=[texture]}else{textures.push(texture)}};Painter.prototype.saveViewportTexture=function(texture){if(!this.reusableTextures.viewport)this.reusableTextures.viewport={};this.reusableTextures.viewport.texture=texture};Painter.prototype.getTileTexture=function(width,height){var widthTextures=this.reusableTextures[width];if(widthTextures){var textures=widthTextures[height||width];return textures&&textures.length>0?textures.pop():null}};Painter.prototype.getViewportTexture=function(width,height){if(!this.reusableTextures.viewport)return;var texture=this.reusableTextures.viewport.texture;if(texture.width===width&&texture.height===height){return texture}else{this.gl.deleteTexture(texture);this.reusableTextures.viewport.texture=null;return}};Painter.prototype.lineWidth=function(width){this.gl.lineWidth(util.clamp(width,this.lineWidthRange[0],this.lineWidthRange[1]))};Painter.prototype.showOverdrawInspector=function(enabled){if(!enabled&&!this._showOverdrawInspector)return;this._showOverdrawInspector=enabled;var gl=this.gl;if(enabled){gl.blendFunc(gl.CONSTANT_COLOR,gl.ONE);var numOverdrawSteps=8;var a=1/numOverdrawSteps;gl.blendColor(a,a,a,0);gl.clearColor(0,0,0,1);gl.clear(gl.COLOR_BUFFER_BIT)}else{gl.blendFunc(gl.ONE,gl.ONE_MINUS_SRC_ALPHA);
}}},{"../data/bucket":17,"../data/buffer":23,"../source/pixels_to_tile_units":55,"../source/source_cache":59,"../util/browser":120,"../util/struct_array":135,"../util/util":137,"./create_uniform_pragmas":34,"./draw_background":35,"./draw_circle":36,"./draw_debug":38,"./draw_extrusion":39,"./draw_fill":40,"./draw_line":41,"./draw_raster":42,"./draw_symbol":43,"./frame_history":44,"./painter/use_program":47,"./vertex_array_object":49,"gl-matrix":154}],47:[function(require,module,exports){"use strict";var util=require("../../util/util");var shaders=require("mapbox-gl-shaders");var utilSource=shaders.util;module.exports._createProgram=function(name,defines,vertexPragmas,fragmentPragmas){var gl=this.gl;var program=gl.createProgram();var definition=shaders[name];var definesSource="#define MAPBOX_GL_JS;\n";for(var j=0;j<defines.length;j++){definesSource+="#define "+defines[j]+";\n"}var fragmentShader=gl.createShader(gl.FRAGMENT_SHADER);gl.shaderSource(fragmentShader,applyPragmas(definesSource+definition.fragmentSource,fragmentPragmas));gl.compileShader(fragmentShader);gl.attachShader(program,fragmentShader);var vertexShader=gl.createShader(gl.VERTEX_SHADER);gl.shaderSource(vertexShader,applyPragmas(definesSource+utilSource+definition.vertexSource,vertexPragmas));gl.compileShader(vertexShader);gl.attachShader(program,vertexShader);gl.linkProgram(program);var attributes={};var numAttributes=gl.getProgramParameter(program,gl.ACTIVE_ATTRIBUTES);for(var i=0;i<numAttributes;i++){var attribute=gl.getActiveAttrib(program,i);attributes[attribute.name]=gl.getAttribLocation(program,attribute.name)}var uniforms={};var numUniforms=gl.getProgramParameter(program,gl.ACTIVE_UNIFORMS);for(var ui=0;ui<numUniforms;ui++){var uniform=gl.getActiveUniform(program,ui);uniforms[uniform.name]=gl.getUniformLocation(program,uniform.name)}return util.extend({program:program,definition:definition,attributes:attributes,numAttributes:numAttributes},attributes,uniforms)};module.exports._createProgramCached=function(name,defines,vertexPragmas,fragmentPragmas){this.cache=this.cache||{};var key=JSON.stringify({name:name,defines:defines,vertexPragmas:vertexPragmas,fragmentPragmas:fragmentPragmas});if(!this.cache[key]){this.cache[key]=this._createProgram(name,defines,vertexPragmas,fragmentPragmas)}return this.cache[key]};module.exports.useProgram=function(nextProgramName,defines,vertexPragmas,fragmentPragmas){var gl=this.gl;defines=defines||[];if(this._showOverdrawInspector){defines=defines.concat("OVERDRAW_INSPECTOR")}var nextProgram=this._createProgramCached(nextProgramName,defines,vertexPragmas,fragmentPragmas);var previousProgram=this.currentProgram;if(previousProgram!==nextProgram){gl.useProgram(nextProgram.program);this.currentProgram=nextProgram}return nextProgram};function applyPragmas(source,pragmas){return source.replace(/#pragma mapbox: ([\w]+) ([\w]+) ([\w]+) ([\w]+)/g,function(match,operation,precision,type,name){return pragmas[operation][name].replace(/{type}/g,type).replace(/{precision}/g,precision)})}},{"../../util/util":137,"mapbox-gl-shaders":167}],48:[function(require,module,exports){"use strict";var pixelsToTileUnits=require("../source/pixels_to_tile_units");module.exports=setPattern;function setPattern(image,tile,coord,painter,program,includeHeightFactor){var gl=painter.gl;var imagePosA=painter.spriteAtlas.getPosition(image.from,true);var imagePosB=painter.spriteAtlas.getPosition(image.to,true);if(!imagePosA||!imagePosB)return;gl.uniform1i(program.u_image,0);gl.uniform2fv(program.u_pattern_tl_a,imagePosA.tl);gl.uniform2fv(program.u_pattern_br_a,imagePosA.br);gl.uniform2fv(program.u_pattern_tl_b,imagePosB.tl);gl.uniform2fv(program.u_pattern_br_b,imagePosB.br);gl.uniform1f(program.u_mix,image.t);gl.uniform1f(program.u_tile_units_to_pixels,1/pixelsToTileUnits(tile,1,painter.transform.tileZoom));gl.uniform2fv(program.u_pattern_size_a,imagePosA.size);gl.uniform2fv(program.u_pattern_size_b,imagePosB.size);gl.uniform1f(program.u_scale_a,image.fromScale);gl.uniform1f(program.u_scale_b,image.toScale);var tileSizeAtNearestZoom=tile.tileSize*Math.pow(2,painter.transform.tileZoom-tile.coord.z);var pixelX=tileSizeAtNearestZoom*(tile.coord.x+coord.w*Math.pow(2,tile.coord.z));var pixelY=tileSizeAtNearestZoom*tile.coord.y;gl.uniform2f(program.u_pixel_coord_upper,pixelX>>16,pixelY>>16);gl.uniform2f(program.u_pixel_coord_lower,pixelX&65535,pixelY&65535);if(includeHeightFactor){gl.uniform1f(program.u_height_factor,-Math.pow(2,painter.transform.tileZoom)/tileSizeAtNearestZoom>>3)}gl.activeTexture(gl.TEXTURE0);painter.spriteAtlas.bind(gl,true)}},{"../source/pixels_to_tile_units":55}],49:[function(require,module,exports){"use strict";module.exports=VertexArrayObject;function VertexArrayObject(){this.boundProgram=null;this.boundVertexBuffer=null;this.boundVertexBuffer2=null;this.boundElementBuffer=null;this.vao=null}VertexArrayObject.prototype.bind=function(gl,program,layoutVertexBuffer,elementBuffer,vertexBuffer2){if(gl.extVertexArrayObject===undefined){gl.extVertexArrayObject=gl.getExtension("OES_vertex_array_object")}var isFreshBindRequired=!this.vao||this.boundProgram!==program||this.boundVertexBuffer!==layoutVertexBuffer||this.boundVertexBuffer2!==vertexBuffer2||this.boundElementBuffer!==elementBuffer;if(!gl.extVertexArrayObject||isFreshBindRequired){this.freshBind(gl,program,layoutVertexBuffer,elementBuffer,vertexBuffer2);this.gl=gl}else{gl.extVertexArrayObject.bindVertexArrayOES(this.vao)}};VertexArrayObject.prototype.freshBind=function(gl,program,layoutVertexBuffer,elementBuffer,vertexBuffer2){var numPrevAttributes;var numNextAttributes=program.numAttributes;if(gl.extVertexArrayObject){if(this.vao)this.destroy();this.vao=gl.extVertexArrayObject.createVertexArrayOES();gl.extVertexArrayObject.bindVertexArrayOES(this.vao);numPrevAttributes=0;this.boundProgram=program;this.boundVertexBuffer=layoutVertexBuffer;this.boundVertexBuffer2=vertexBuffer2;this.boundElementBuffer=elementBuffer}else{numPrevAttributes=gl.currentNumAttributes||0;for(var i=numNextAttributes;i<numPrevAttributes;i++){gl.disableVertexAttribArray(i)}}for(var j=numPrevAttributes;j<numNextAttributes;j++){gl.enableVertexAttribArray(j)}layoutVertexBuffer.bind(gl);layoutVertexBuffer.setVertexAttribPointers(gl,program);if(vertexBuffer2){vertexBuffer2.bind(gl);vertexBuffer2.setVertexAttribPointers(gl,program)}if(elementBuffer){elementBuffer.bind(gl)}gl.currentNumAttributes=numNextAttributes};VertexArrayObject.prototype.destroy=function(){if(this.vao){this.gl.extVertexArrayObject.deleteVertexArrayOES(this.vao);this.vao=null}}},{}],50:[function(require,module,exports){"use strict";var Evented=require("../util/evented");var util=require("../util/util");var window=require("../util/window");var EXTENT=require("../data/bucket").EXTENT;module.exports=GeoJSONSource;function GeoJSONSource(id,options,dispatcher,eventedParent){options=options||{};this.id=id;this.dispatcher=dispatcher;this._data=options.data;if(options.maxzoom!==undefined)this.maxzoom=options.maxzoom;if(options.type)this.type=options.type;var scale=EXTENT/this.tileSize;this.workerOptions=util.extend({source:this.id,cluster:options.cluster||false,geojsonVtOptions:{buffer:(options.buffer!==undefined?options.buffer:128)*scale,tolerance:(options.tolerance!==undefined?options.tolerance:.375)*scale,extent:EXTENT,maxZoom:this.maxzoom},superclusterOptions:{maxZoom:Math.min(options.clusterMaxZoom,this.maxzoom-1)||this.maxzoom-1,extent:EXTENT,radius:(options.clusterRadius||50)*scale,log:false}},options.workerOptions);this.setEventedParent(eventedParent);this.fire("dataloading",{dataType:"source"});this._updateWorkerData(function done(err){if(err){this.fire("error",{error:err});return}this.fire("data",{dataType:"source"});this.fire("source.load")}.bind(this))}GeoJSONSource.prototype=util.inherit(Evented,{type:"geojson",minzoom:0,maxzoom:18,tileSize:512,isTileClipped:true,reparseOverscaled:true,onAdd:function(map){this.map=map},setData:function(data){this._data=data;this.fire("dataloading",{dataType:"source"});this._updateWorkerData(function(err){if(err){return this.fire("error",{error:err})}this.fire("data",{dataType:"source"})}.bind(this));return this},_updateWorkerData:function(callback){var options=util.extend({},this.workerOptions);var data=this._data;if(typeof data==="string"){options.url=resolveURL(data)}else{options.data=JSON.stringify(data)}this.workerID=this.dispatcher.send(this.type+".loadData",options,function(err){this._loaded=true;callback(err)}.bind(this))},loadTile:function(tile,callback){var overscaling=tile.coord.z>this.maxzoom?Math.pow(2,tile.coord.z-this.maxzoom):1;var params={type:this.type,uid:tile.uid,coord:tile.coord,zoom:tile.coord.z,maxZoom:this.maxzoom,tileSize:this.tileSize,source:this.id,overscaling:overscaling,angle:this.map.transform.angle,pitch:this.map.transform.pitch,showCollisionBoxes:this.map.showCollisionBoxes};tile.workerID=this.dispatcher.send("load tile",params,function(err,data){tile.unloadVectorData();if(tile.aborted)return;if(err){return callback(err)}tile.loadVectorData(data,this.map.painter);if(tile.redoWhenDone){tile.redoWhenDone=false;tile.redoPlacement(this)}return callback(null)}.bind(this),this.workerID)},abortTile:function(tile){tile.aborted=true},unloadTile:function(tile){tile.unloadVectorData();this.dispatcher.send("remove tile",{uid:tile.uid,source:this.id},function(){},tile.workerID)},serialize:function(){return{type:this.type,data:this._data}}});function resolveURL(url){var a=window.document.createElement("a");a.href=url;return a.href}},{"../data/bucket":17,"../util/evented":128,"../util/util":137,"../util/window":122}],51:[function(require,module,exports){"use strict";var util=require("../util/util");var ajax=require("../util/ajax");var rewind=require("geojson-rewind");var GeoJSONWrapper=require("./geojson_wrapper");var vtpbf=require("vt-pbf");var supercluster=require("supercluster");var geojsonvt=require("geojson-vt");var VectorTileWorkerSource=require("./vector_tile_worker_source");module.exports=GeoJSONWorkerSource;function GeoJSONWorkerSource(actor,styleLayers,loadGeoJSON){if(loadGeoJSON){this.loadGeoJSON=loadGeoJSON}VectorTileWorkerSource.call(this,actor,styleLayers)}GeoJSONWorkerSource.prototype=util.inherit(VectorTileWorkerSource,{_geoJSONIndexes:{},loadVectorData:function(params,callback){var source=params.source,coord=params.coord;if(!this._geoJSONIndexes[source]){return callback(null,null)}var geoJSONTile=this._geoJSONIndexes[source].getTile(Math.min(coord.z,params.maxZoom),coord.x,coord.y);if(!geoJSONTile){return callback(null,null)}var geojsonWrapper=new GeoJSONWrapper(geoJSONTile.features);geojsonWrapper.name="_geojsonTileLayer";var pbf=vtpbf({layers:{_geojsonTileLayer:geojsonWrapper}});if(pbf.byteOffset!==0||pbf.byteLength!==pbf.buffer.byteLength){pbf=new Uint8Array(pbf)}geojsonWrapper.rawData=pbf.buffer;callback(null,geojsonWrapper)},loadData:function(params,callback){var handleData=function(err,data){if(err)return callback(err);if(typeof data!="object"){return callback(new Error("Input data is not a valid GeoJSON object."))}rewind(data,true);this._indexData(data,params,function(err,indexed){if(err){return callback(err)}this._geoJSONIndexes[params.source]=indexed;callback(null)}.bind(this))}.bind(this);this.loadGeoJSON(params,handleData)},loadGeoJSON:function(params,callback){if(params.url){ajax.getJSON(params.url,callback)}else if(typeof params.data==="string"){try{return callback(null,JSON.parse(params.data))}catch(e){return callback(new Error("Input data is not a valid GeoJSON object."))}}else{return callback(new Error("Input data is not a valid GeoJSON object."))}},_indexData:function(data,params,callback){try{if(params.cluster){callback(null,supercluster(params.superclusterOptions).load(data.features))}else{callback(null,geojsonvt(data,params.geojsonVtOptions))}}catch(err){return callback(err)}}})},{"../util/ajax":119,"../util/util":137,"./geojson_wrapper":52,"./vector_tile_worker_source":63,"geojson-rewind":143,"geojson-vt":149,supercluster:199,"vt-pbf":210}],52:[function(require,module,exports){"use strict";var Point=require("point-geometry");var VectorTileFeature=require("vector-tile").VectorTileFeature;var EXTENT=require("../data/bucket").EXTENT;module.exports=GeoJSONWrapper;function GeoJSONWrapper(features){this.features=features;this.length=features.length;this.extent=EXTENT}GeoJSONWrapper.prototype.feature=function(i){return new FeatureWrapper(this.features[i])};function FeatureWrapper(feature){this.type=feature.type;if(feature.type===1){this.rawGeometry=[];for(var i=0;i<feature.geometry.length;i++){this.rawGeometry.push([feature.geometry[i]])}}else{this.rawGeometry=feature.geometry}this.properties=feature.tags;this.extent=EXTENT}FeatureWrapper.prototype.loadGeometry=function(){var rings=this.rawGeometry;this.geometry=[];for(var i=0;i<rings.length;i++){var ring=rings[i],newRing=[];for(var j=0;j<ring.length;j++){newRing.push(new Point(ring[j][0],ring[j][1]))}this.geometry.push(newRing)}return this.geometry};FeatureWrapper.prototype.bbox=function(){if(!this.geometry)this.loadGeometry();var rings=this.geometry,x1=Infinity,x2=-Infinity,y1=Infinity,y2=-Infinity;for(var i=0;i<rings.length;i++){var ring=rings[i];for(var j=0;j<ring.length;j++){var coord=ring[j];x1=Math.min(x1,coord.x);x2=Math.max(x2,coord.x);y1=Math.min(y1,coord.y);y2=Math.max(y2,coord.y)}}return[x1,y1,x2,y2]};FeatureWrapper.prototype.toGeoJSON=VectorTileFeature.prototype.toGeoJSON},{"../data/bucket":17,"point-geometry":196,"vector-tile":206}],53:[function(require,module,exports){"use strict";var util=require("../util/util");var TileCoord=require("./tile_coord");var LngLat=require("../geo/lng_lat");var Point=require("point-geometry");var Evented=require("../util/evented");var ajax=require("../util/ajax");var EXTENT=require("../data/bucket").EXTENT;var RasterBoundsArray=require("../render/draw_raster").RasterBoundsArray;var Buffer=require("../data/buffer");var VertexArrayObject=require("../render/vertex_array_object");module.exports=ImageSource;function ImageSource(id,options,dispatcher,eventedParent){this.id=id;this.dispatcher=dispatcher;this.url=options.url;this.coordinates=options.coordinates;this.setEventedParent(eventedParent);this.fire("dataloading",{dataType:"source"});ajax.getImage(options.url,function(err,image){if(err)return this.fire("error",{error:err});this.image=image;this._loaded=true;this.fire("data",{dataType:"source"});this.fire("source.load");if(this.map){this.setCoordinates(options.coordinates)}}.bind(this))}ImageSource.prototype=util.inherit(Evented,{minzoom:0,maxzoom:22,tileSize:512,onAdd:function(map){this.map=map;if(this.image){this.setCoordinates(this.coordinates)}},setCoordinates:function(coordinates){this.coordinates=coordinates;var map=this.map;var cornerZ0Coords=coordinates.map(function(coord){return map.transform.locationCoordinate(LngLat.convert(coord)).zoomTo(0)});var centerCoord=this.centerCoord=util.getCoordinatesCenter(cornerZ0Coords);centerCoord.column=Math.round(centerCoord.column);centerCoord.row=Math.round(centerCoord.row);this.minzoom=this.maxzoom=centerCoord.zoom;this.coord=new TileCoord(centerCoord.zoom,centerCoord.column,centerCoord.row);this._tileCoords=cornerZ0Coords.map(function(coord){var zoomedCoord=coord.zoomTo(centerCoord.zoom);return new Point(Math.round((zoomedCoord.column-centerCoord.column)*EXTENT),Math.round((zoomedCoord.row-centerCoord.row)*EXTENT))});this.fire("data",{dataType:"source"});return this},_setTile:function(tile){this._prepared=false;this.tile=tile;var maxInt16=32767;var array=new RasterBoundsArray;array.emplaceBack(this._tileCoords[0].x,this._tileCoords[0].y,0,0);array.emplaceBack(this._tileCoords[1].x,this._tileCoords[1].y,maxInt16,0);array.emplaceBack(this._tileCoords[3].x,this._tileCoords[3].y,0,maxInt16);array.emplaceBack(this._tileCoords[2].x,this._tileCoords[2].y,maxInt16,maxInt16);this.tile.buckets={};this.tile.boundsBuffer=new Buffer(array.serialize(),RasterBoundsArray.serialize(),Buffer.BufferType.VERTEX);this.tile.boundsVAO=new VertexArrayObject;this.tile.state="loaded"},prepare:function(){if(!this.tile||!this._loaded||!this.image||!this.image.complete)return;this._prepareImage(this.map.painter.gl,this.image)},_prepareImage:function(gl,image){if(!this._prepared){this._prepared=true;this.tile.texture=gl.createTexture();gl.bindTexture(gl.TEXTURE_2D,this.tile.texture);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,gl.LINEAR);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,gl.LINEAR);gl.texImage2D(gl.TEXTURE_2D,0,gl.RGBA,gl.RGBA,gl.UNSIGNED_BYTE,image)}else{gl.bindTexture(gl.TEXTURE_2D,this.tile.texture);gl.texSubImage2D(gl.TEXTURE_2D,0,0,0,gl.RGBA,gl.UNSIGNED_BYTE,image)}},loadTile:function(tile,callback){if(this.coord&&this.coord.toString()===tile.coord.toString()){this._setTile(tile);callback(null)}else{tile.state="errored";callback(null)}},serialize:function(){return{type:"image",urls:this.url,coordinates:this.coordinates}}})},{"../data/bucket":17,"../data/buffer":23,"../geo/lng_lat":28,"../render/draw_raster":42,"../render/vertex_array_object":49,"../util/ajax":119,"../util/evented":128,"../util/util":137,"./tile_coord":61,"point-geometry":196}],54:[function(require,module,exports){"use strict";var util=require("../util/util");var ajax=require("../util/ajax");var browser=require("../util/browser");var normalizeURL=require("../util/mapbox").normalizeSourceURL;module.exports=function(options,callback){var loaded=function(err,tileJSON){if(err){return callback(err)}var result=util.pick(tileJSON,["tiles","minzoom","maxzoom","attribution"]);if(tileJSON.vector_layers){result.vectorLayers=tileJSON.vector_layers;result.vectorLayerIds=result.vectorLayers.map(function(layer){return layer.id})}callback(null,result)};if(options.url){ajax.getJSON(normalizeURL(options.url),loaded)}else{browser.frame(loaded.bind(null,null,options))}}},{"../util/ajax":119,"../util/browser":120,"../util/mapbox":134,"../util/util":137}],55:[function(require,module,exports){"use strict";var Bucket=require("../data/bucket");module.exports=function(tile,pixelValue,z){return pixelValue*(Bucket.EXTENT/(tile.tileSize*Math.pow(2,z-tile.coord.z)))}},{"../data/bucket":17}],56:[function(require,module,exports){"use strict";var TileCoord=require("./tile_coord");exports.rendered=function(sourceCache,styleLayers,queryGeometry,params,zoom,bearing){var tilesIn=sourceCache.tilesIn(queryGeometry);tilesIn.sort(sortTilesIn);var renderedFeatureLayers=[];for(var r=0;r<tilesIn.length;r++){var tileIn=tilesIn[r];if(!tileIn.tile.featureIndex)continue;renderedFeatureLayers.push(tileIn.tile.featureIndex.query({queryGeometry:tileIn.queryGeometry,scale:tileIn.scale,tileSize:tileIn.tile.tileSize,bearing:bearing,params:params},styleLayers))}return mergeRenderedFeatureLayers(renderedFeatureLayers)};exports.source=function(sourceCache,params){var tiles=sourceCache.getRenderableIds().map(function(id){return sourceCache.getTileByID(id)});var result=[];var dataTiles={};for(var i=0;i<tiles.length;i++){var tile=tiles[i];var dataID=new TileCoord(Math.min(tile.sourceMaxZoom,tile.coord.z),tile.coord.x,tile.coord.y,0).id;if(!dataTiles[dataID]){dataTiles[dataID]=true;tile.querySourceFeatures(result,params)}}return result};function sortTilesIn(a,b){var coordA=a.coord;var coordB=b.coord;return coordA.z-coordB.z||coordA.y-coordB.y||coordA.w-coordB.w||coordA.x-coordB.x}function mergeRenderedFeatureLayers(tiles){var result=tiles[0]||{};for(var i=1;i<tiles.length;i++){var tile=tiles[i];for(var layerID in tile){var tileFeatures=tile[layerID];var resultFeatures=result[layerID];if(resultFeatures===undefined){resultFeatures=result[layerID]=tileFeatures}else{for(var f=0;f<tileFeatures.length;f++){resultFeatures.push(tileFeatures[f])}}}}return result}},{"./tile_coord":61}],57:[function(require,module,exports){"use strict";var util=require("../util/util");var ajax=require("../util/ajax");var Evented=require("../util/evented");var loadTileJSON=require("./load_tilejson");var normalizeURL=require("../util/mapbox").normalizeTileURL;module.exports=RasterTileSource;function RasterTileSource(id,options,dispatcher,eventedParent){this.id=id;this.dispatcher=dispatcher;util.extend(this,util.pick(options,["url","scheme","tileSize"]));this.setEventedParent(eventedParent);this.fire("dataloading",{dataType:"source"});loadTileJSON(options,function(err,tileJSON){if(err){return this.fire("error",err)}util.extend(this,tileJSON);this.fire("data",{dataType:"source"});this.fire("source.load")}.bind(this))}RasterTileSource.prototype=util.inherit(Evented,{minzoom:0,maxzoom:22,roundZoom:true,scheme:"xyz",tileSize:512,_loaded:false,onAdd:function(map){this.map=map},serialize:function(){return{type:"raster",url:this.url,tileSize:this.tileSize,tiles:this.tiles}},loadTile:function(tile,callback){var url=normalizeURL(tile.coord.url(this.tiles,null,this.scheme),this.url,this.tileSize);tile.request=ajax.getImage(url,done.bind(this));function done(err,img){delete tile.request;if(tile.aborted)return;if(err){return callback(err)}var gl=this.map.painter.gl;tile.texture=this.map.painter.getTileTexture(img.width);if(tile.texture){gl.bindTexture(gl.TEXTURE_2D,tile.texture);gl.texSubImage2D(gl.TEXTURE_2D,0,0,0,gl.RGBA,gl.UNSIGNED_BYTE,img)}else{tile.texture=gl.createTexture();gl.bindTexture(gl.TEXTURE_2D,tile.texture);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,gl.LINEAR_MIPMAP_NEAREST);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,gl.LINEAR);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.CLAMP_TO_EDGE);gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL,true);gl.texImage2D(gl.TEXTURE_2D,0,gl.RGBA,gl.RGBA,gl.UNSIGNED_BYTE,img);tile.texture.size=img.width}gl.generateMipmap(gl.TEXTURE_2D);this.map.animationLoop.set(this.map.style.rasterFadeDuration);tile.state="loaded";callback(null)}},abortTile:function(tile){if(tile.request){tile.request.abort();delete tile.request}},unloadTile:function(tile){if(tile.texture)this.map.painter.saveTileTexture(tile.texture)}})},{"../util/ajax":119,"../util/evented":128,"../util/mapbox":134,"../util/util":137,"./load_tilejson":54}],58:[function(require,module,exports){"use strict";var util=require("../util/util");var sourceTypes={vector:require("../source/vector_tile_source"),raster:require("../source/raster_tile_source"),geojson:require("../source/geojson_source"),video:require("../source/video_source"),image:require("../source/image_source")};exports.create=function(id,source,dispatcher,eventedParent){source=new sourceTypes[source.type](id,source,dispatcher,eventedParent);source.setEventedParent(eventedParent);if(source.id!==id){throw new Error("Expected Source id to be "+id+" instead of "+source.id)}util.bindAll(["load","abort","unload","serialize","prepare"],source);return source};exports.getType=function(name){return sourceTypes[name]};exports.setType=function(name,type){sourceTypes[name]=type}},{"../source/geojson_source":50,"../source/image_source":53,"../source/raster_tile_source":57,"../source/vector_tile_source":62,"../source/video_source":64,"../util/util":137}],59:[function(require,module,exports){"use strict";var Source=require("./source");var Tile=require("./tile");var Evented=require("../util/evented");var TileCoord=require("./tile_coord");var Cache=require("../util/lru_cache");var Coordinate=require("../geo/coordinate");var util=require("../util/util");var EXTENT=require("../data/bucket").EXTENT;module.exports=SourceCache;function SourceCache(id,options,dispatcher){this.id=id;this.dispatcher=dispatcher;this._source=Source.create(id,options,dispatcher,this);this.on("source.load",function(){if(this.map&&this._source.onAdd){this._source.onAdd(this.map)}this._sourceLoaded=true});this.on("error",function(){this._sourceErrored=true});this.on("data",function(event){if(this._sourceLoaded&&event.dataType==="source"){this.reload();if(this.transform){this.update(this.transform,this.map&&this.map.style.rasterFadeDuration)}}});this._tiles={};this._cache=new Cache(0,this.unloadTile.bind(this));this._isIdRenderable=this._isIdRenderable.bind(this)}SourceCache.maxOverzooming=10;SourceCache.maxUnderzooming=3;SourceCache.prototype=util.inherit(Evented,{onAdd:function(map){this.map=map;if(this._source&&this._source.onAdd){this._source.onAdd(map)}},loaded:function(){if(this._sourceErrored){return true}if(!this._sourceLoaded){return false}for(var t in this._tiles){var tile=this._tiles[t];if(tile.state!=="loaded"&&tile.state!=="errored")return false}return true},getSource:function(){return this._source},loadTile:function(tile,callback){return this._source.loadTile(tile,callback)},unloadTile:function(tile){if(this._source.unloadTile)return this._source.unloadTile(tile)},abortTile:function(tile){if(this._source.abortTile)return this._source.abortTile(tile)},serialize:function(){return this._source.serialize()},prepare:function(){if(this._sourceLoaded&&this._source.prepare)return this._source.prepare()},getIds:function(){return Object.keys(this._tiles).map(Number).sort(compareKeyZoom)},getRenderableIds:function(){return this.getIds().filter(this._isIdRenderable)},_isIdRenderable:function(id){return this._tiles[id].hasData()&&!this._coveredTiles[id]},reload:function(){this._cache.reset();for(var i in this._tiles){var tile=this._tiles[i];if(tile.state!=="loading"){tile.state="reloading"}this.loadTile(this._tiles[i],this._tileLoaded.bind(this,this._tiles[i]))}},_tileLoaded:function(tile,err){if(err){tile.state="errored";this._source.fire("error",{tile:tile,error:err});return}tile.sourceCache=this;tile.timeAdded=(new Date).getTime();this._source.fire("data",{tile:tile,dataType:"tile"});if(this.map)this.map.painter.tileExtentVAO.vao=null},getTile:function(coord){return this.getTileByID(coord.id)},getTileByID:function(id){return this._tiles[id]},getZoom:function(transform){return transform.zoom+transform.scaleZoom(transform.tileSize/this._source.tileSize)},findLoadedChildren:function(coord,maxCoveringZoom,retain){var found=false;for(var id in this._tiles){var tile=this._tiles[id];if(retain[id]||!tile.hasData()||tile.coord.z<=coord.z||tile.coord.z>maxCoveringZoom)continue;var z2=Math.pow(2,Math.min(tile.coord.z,this._source.maxzoom)-Math.min(coord.z,this._source.maxzoom));if(Math.floor(tile.coord.x/z2)!==coord.x||Math.floor(tile.coord.y/z2)!==coord.y)continue;retain[id]=true;found=true;while(tile&&tile.coord.z-1>coord.z){var parentId=tile.coord.parent(this._source.maxzoom).id;tile=this._tiles[parentId];if(tile&&tile.hasData()){delete retain[id];retain[parentId]=true}}}return found},findLoadedParent:function(coord,minCoveringZoom,retain){for(var z=coord.z-1;z>=minCoveringZoom;z--){coord=coord.parent(this._source.maxzoom);var tile=this._tiles[coord.id];if(tile&&tile.hasData()){retain[coord.id]=true;return tile}if(this._cache.has(coord.id)){this.addTile(coord);retain[coord.id]=true;return this._tiles[coord.id]}}},updateCacheSize:function(transform){var widthInTiles=Math.ceil(transform.width/transform.tileSize)+1;var heightInTiles=Math.ceil(transform.height/transform.tileSize)+1;var approxTilesInView=widthInTiles*heightInTiles;var commonZoomRange=5;this._cache.setMaxSize(Math.floor(approxTilesInView*commonZoomRange))},update:function(transform,fadeDuration){if(!this._sourceLoaded){return}var i;var coord;var tile;this.updateCacheSize(transform);var zoom=(this._source.roundZoom?Math.round:Math.floor)(this.getZoom(transform));var minCoveringZoom=Math.max(zoom-SourceCache.maxOverzooming,this._source.minzoom);var maxCoveringZoom=Math.max(zoom+SourceCache.maxUnderzooming,this._source.minzoom);var retain={};var now=(new Date).getTime();this._coveredTiles={};var visibleCoords;if(!this.used){visibleCoords=[]}else if(this._source.coord){visibleCoords=[this._source.coord]}else{visibleCoords=transform.coveringTiles({tileSize:this._source.tileSize,minzoom:this._source.minzoom,maxzoom:this._source.maxzoom,roundZoom:this._source.roundZoom,reparseOverscaled:this._source.reparseOverscaled})}for(i=0;i<visibleCoords.length;i++){coord=visibleCoords[i];tile=this.addTile(coord);retain[coord.id]=true;if(tile.hasData())continue;if(!this.findLoadedChildren(coord,maxCoveringZoom,retain)){this.findLoadedParent(coord,minCoveringZoom,retain)}}var parentsForFading={};var ids=Object.keys(retain);for(var k=0;k<ids.length;k++){var id=ids[k];coord=TileCoord.fromID(id);tile=this._tiles[id];if(tile&&tile.timeAdded>now-(fadeDuration||0)){if(this.findLoadedChildren(coord,maxCoveringZoom,retain)){retain[id]=true}this.findLoadedParent(coord,minCoveringZoom,parentsForFading)}}var fadedParent;for(fadedParent in parentsForFading){if(!retain[fadedParent]){this._coveredTiles[fadedParent]=true}}for(fadedParent in parentsForFading){retain[fadedParent]=true}var remove=util.keysDifference(this._tiles,retain);for(i=0;i<remove.length;i++){this.removeTile(+remove[i])}this.transform=transform},addTile:function(coord){var tile=this._tiles[coord.id];if(tile)return tile;var wrapped=coord.wrapped();tile=this._tiles[wrapped.id];if(!tile){tile=this._cache.get(wrapped.id);if(tile&&this._redoPlacement){this._redoPlacement(tile)}}if(!tile){var zoom=coord.z;var overscaling=zoom>this._source.maxzoom?Math.pow(2,zoom-this._source.maxzoom):1;tile=new Tile(wrapped,this._source.tileSize*overscaling,this._source.maxzoom);this.loadTile(tile,this._tileLoaded.bind(this,tile))}tile.uses++;this._tiles[coord.id]=tile;this._source.fire("dataloading",{tile:tile,dataType:"tile"});return tile},removeTile:function(id){var tile=this._tiles[id];if(!tile)return;tile.uses--;delete this._tiles[id];this._source.fire("data",{tile:tile,dataType:"tile"});if(tile.uses>0)return;if(tile.hasData()){this._cache.add(tile.coord.wrapped().id,tile)}else{tile.aborted=true;this.abortTile(tile);this.unloadTile(tile)}},clearTiles:function(){for(var id in this._tiles)this.removeTile(id);this._cache.reset()},tilesIn:function(queryGeometry){var tileResults={};var ids=this.getIds();var minX=Infinity;var minY=Infinity;var maxX=-Infinity;var maxY=-Infinity;var z=queryGeometry[0].zoom;for(var k=0;k<queryGeometry.length;k++){var p=queryGeometry[k];minX=Math.min(minX,p.column);minY=Math.min(minY,p.row);maxX=Math.max(maxX,p.column);maxY=Math.max(maxY,p.row)}for(var i=0;i<ids.length;i++){var tile=this._tiles[ids[i]];var coord=TileCoord.fromID(ids[i]);var tileSpaceBounds=[coordinateToTilePoint(coord,tile.sourceMaxZoom,new Coordinate(minX,minY,z)),coordinateToTilePoint(coord,tile.sourceMaxZoom,new Coordinate(maxX,maxY,z))];if(tileSpaceBounds[0].x<EXTENT&&tileSpaceBounds[0].y<EXTENT&&tileSpaceBounds[1].x>=0&&tileSpaceBounds[1].y>=0){var tileSpaceQueryGeometry=[];for(var j=0;j<queryGeometry.length;j++){tileSpaceQueryGeometry.push(coordinateToTilePoint(coord,tile.sourceMaxZoom,queryGeometry[j]))}var tileResult=tileResults[tile.coord.id];if(tileResult===undefined){tileResult=tileResults[tile.coord.id]={tile:tile,coord:coord,queryGeometry:[],scale:Math.pow(2,this.transform.zoom-tile.coord.z)}}tileResult.queryGeometry.push(tileSpaceQueryGeometry)}}var results=[];for(var t in tileResults){results.push(tileResults[t])}return results},redoPlacement:function(){var ids=this.getIds();for(var i=0;i<ids.length;i++){var tile=this.getTileByID(ids[i]);tile.redoPlacement(this)}},getVisibleCoordinates:function(){return this.getRenderableIds().map(TileCoord.fromID)}});function coordinateToTilePoint(tileCoord,sourceMaxZoom,coord){var zoomedCoord=coord.zoomTo(Math.min(tileCoord.z,sourceMaxZoom));return{x:(zoomedCoord.column-(tileCoord.x+tileCoord.w*Math.pow(2,tileCoord.z)))*EXTENT,y:(zoomedCoord.row-tileCoord.y)*EXTENT}}function compareKeyZoom(a,b){return a%32-b%32}},{"../data/bucket":17,"../geo/coordinate":27,"../util/evented":128,"../util/lru_cache":133,"../util/util":137,"./source":58,"./tile":60,"./tile_coord":61}],60:[function(require,module,exports){"use strict";var util=require("../util/util");var Bucket=require("../data/bucket");
var FeatureIndex=require("../data/feature_index");var vt=require("vector-tile");var Protobuf=require("pbf");var GeoJSONFeature=require("../util/vectortile_to_geojson");var featureFilter=require("feature-filter");var CollisionTile=require("../symbol/collision_tile");var CollisionBoxArray=require("../symbol/collision_box");var SymbolInstancesArray=require("../symbol/symbol_instances");var SymbolQuadsArray=require("../symbol/symbol_quads");module.exports=Tile;function Tile(coord,size,sourceMaxZoom){this.coord=coord;this.uid=util.uniqueId();this.uses=0;this.tileSize=size;this.sourceMaxZoom=sourceMaxZoom;this.buckets={};this.state="loading"}Tile.prototype={loadVectorData:function(data,painter){if(this.hasData()){this.unloadVectorData(painter)}this.state="loaded";if(!data)return;if(data.rawTileData){this.rawTileData=data.rawTileData}this.collisionBoxArray=new CollisionBoxArray(data.collisionBoxArray);this.collisionTile=new CollisionTile(data.collisionTile,this.collisionBoxArray);this.symbolInstancesArray=new SymbolInstancesArray(data.symbolInstancesArray);this.symbolQuadsArray=new SymbolQuadsArray(data.symbolQuadsArray);this.featureIndex=new FeatureIndex(data.featureIndex,this.rawTileData,this.collisionTile);this.buckets=unserializeBuckets(data.buckets,painter.style)},reloadSymbolData:function(data,style){if(this.state==="unloaded")return;this.collisionTile=new CollisionTile(data.collisionTile,this.collisionBoxArray);this.featureIndex.setCollisionTile(this.collisionTile);for(var id in this.buckets){var bucket=this.buckets[id];if(bucket.type==="symbol"){bucket.destroy();delete this.buckets[id]}}util.extend(this.buckets,unserializeBuckets(data.buckets,style))},unloadVectorData:function(){for(var id in this.buckets){this.buckets[id].destroy()}this.collisionBoxArray=null;this.symbolQuadsArray=null;this.symbolInstancesArray=null;this.collisionTile=null;this.featureIndex=null;this.buckets=null;this.state="unloaded"},redoPlacement:function(source){if(this.state!=="loaded"||this.state==="reloading"){this.redoWhenDone=true;return}this.state="reloading";source.dispatcher.send("redo placement",{uid:this.uid,source:source.id,angle:source.map.transform.angle,pitch:source.map.transform.pitch,showCollisionBoxes:source.map.showCollisionBoxes},done.bind(this),this.workerID);function done(_,data){this.reloadSymbolData(data,source.map.style);source.fire("data",{tile:this,dataType:"tile"});if(source.map)source.map.painter.tileExtentVAO.vao=null;this.state="loaded";if(this.redoWhenDone){this.redoPlacement(source);this.redoWhenDone=false}}},getBucket:function(layer){return this.buckets&&this.buckets[layer.ref||layer.id]},querySourceFeatures:function(result,params){if(!this.rawTileData)return;if(!this.vtLayers){this.vtLayers=new vt.VectorTile(new Protobuf(this.rawTileData)).layers}var layer=this.vtLayers._geojsonTileLayer||this.vtLayers[params.sourceLayer];if(!layer)return;var filter=featureFilter(params.filter);var coord={z:this.coord.z,x:this.coord.x,y:this.coord.y};for(var i=0;i<layer.length;i++){var feature=layer.feature(i);if(filter(feature)){var geojsonFeature=new GeoJSONFeature(feature,this.coord.z,this.coord.x,this.coord.y);geojsonFeature.tile=coord;result.push(geojsonFeature)}}},hasData:function(){return this.state==="loaded"||this.state==="reloading"}};function unserializeBuckets(input,style){if(!style)return;var output={};for(var i=0;i<input.length;i++){var layer=style.getLayer(input[i].layerId);if(!layer)continue;var bucket=Bucket.create(util.extend({layer:layer,childLayers:input[i].childLayerIds.map(style.getLayer.bind(style)).filter(function(layer){return layer})},input[i]));output[bucket.id]=bucket}return output}},{"../data/bucket":17,"../data/feature_index":25,"../symbol/collision_box":87,"../symbol/collision_tile":89,"../symbol/symbol_instances":98,"../symbol/symbol_quads":99,"../util/util":137,"../util/vectortile_to_geojson":138,"feature-filter":142,pbf:194,"vector-tile":206}],61:[function(require,module,exports){"use strict";var WhooTS=require("whoots-js");var Coordinate=require("../geo/coordinate");module.exports=TileCoord;function TileCoord(z,x,y,w){if(isNaN(w))w=0;this.z=+z;this.x=+x;this.y=+y;this.w=+w;w*=2;if(w<0)w=w*-1-1;var dim=1<<this.z;this.id=(dim*dim*w+dim*this.y+this.x)*32+this.z;this.posMatrix=null}TileCoord.prototype.toString=function(){return this.z+"/"+this.x+"/"+this.y};TileCoord.prototype.toCoordinate=function(sourceMaxZoom){var zoom=Math.min(this.z,sourceMaxZoom);var tileScale=Math.pow(2,zoom);var row=this.y;var column=this.x+tileScale*this.w;return new Coordinate(column,row,zoom)};TileCoord.fromID=function(id){var z=id%32,dim=1<<z;var xy=(id-z)/32;var x=xy%dim,y=(xy-x)/dim%dim;var w=Math.floor(xy/(dim*dim));if(w%2!==0)w=w*-1-1;w/=2;return new TileCoord(z,x,y,w)};function getQuadkey(z,x,y){var quadkey="",mask;for(var i=z;i>0;i--){mask=1<<i-1;quadkey+=(x&mask?1:0)+(y&mask?2:0)}return quadkey}TileCoord.prototype.url=function(urls,sourceMaxZoom,scheme){var bbox=WhooTS.getTileBBox(this.x,this.y,this.z);var quadkey=getQuadkey(this.z,this.x,this.y);return urls[(this.x+this.y)%urls.length].replace("{prefix}",(this.x%16).toString(16)+(this.y%16).toString(16)).replace("{z}",Math.min(this.z,sourceMaxZoom||this.z)).replace("{x}",this.x).replace("{y}",scheme==="tms"?Math.pow(2,this.z)-this.y-1:this.y).replace("{quadkey}",quadkey).replace("{bbox-epsg-3857}",bbox)};TileCoord.prototype.parent=function(sourceMaxZoom){if(this.z===0)return null;if(this.z>sourceMaxZoom){return new TileCoord(this.z-1,this.x,this.y,this.w)}return new TileCoord(this.z-1,Math.floor(this.x/2),Math.floor(this.y/2),this.w)};TileCoord.prototype.wrapped=function(){return new TileCoord(this.z,this.x,this.y,0)};TileCoord.prototype.children=function(sourceMaxZoom){if(this.z>=sourceMaxZoom){return[new TileCoord(this.z+1,this.x,this.y,this.w)]}var z=this.z+1;var x=this.x*2;var y=this.y*2;return[new TileCoord(z,x,y,this.w),new TileCoord(z,x+1,y,this.w),new TileCoord(z,x,y+1,this.w),new TileCoord(z,x+1,y+1,this.w)]};function edge(a,b){if(a.row>b.row){var t=a;a=b;b=t}return{x0:a.column,y0:a.row,x1:b.column,y1:b.row,dx:b.column-a.column,dy:b.row-a.row}}function scanSpans(e0,e1,ymin,ymax,scanLine){var y0=Math.max(ymin,Math.floor(e1.y0));var y1=Math.min(ymax,Math.ceil(e1.y1));if(e0.x0===e1.x0&&e0.y0===e1.y0?e0.x0+e1.dy/e0.dy*e0.dx<e1.x1:e0.x1-e1.dy/e0.dy*e0.dx<e1.x0){var t=e0;e0=e1;e1=t}var m0=e0.dx/e0.dy;var m1=e1.dx/e1.dy;var d0=e0.dx>0;var d1=e1.dx<0;for(var y=y0;y<y1;y++){var x0=m0*Math.max(0,Math.min(e0.dy,y+d0-e0.y0))+e0.x0;var x1=m1*Math.max(0,Math.min(e1.dy,y+d1-e1.y0))+e1.x0;scanLine(Math.floor(x1),Math.ceil(x0),y)}}function scanTriangle(a,b,c,ymin,ymax,scanLine){var ab=edge(a,b),bc=edge(b,c),ca=edge(c,a);var t;if(ab.dy>bc.dy){t=ab;ab=bc;bc=t}if(ab.dy>ca.dy){t=ab;ab=ca;ca=t}if(bc.dy>ca.dy){t=bc;bc=ca;ca=t}if(ab.dy)scanSpans(ca,ab,ymin,ymax,scanLine);if(bc.dy)scanSpans(ca,bc,ymin,ymax,scanLine)}TileCoord.cover=function(z,bounds,actualZ){var tiles=1<<z;var t={};function scanLine(x0,x1,y){var x,wx,coord;if(y>=0&&y<=tiles){for(x=x0;x<x1;x++){wx=(x%tiles+tiles)%tiles;coord=new TileCoord(actualZ,wx,y,Math.floor(x/tiles));t[coord.id]=coord}}}scanTriangle(bounds[0],bounds[1],bounds[2],0,tiles,scanLine);scanTriangle(bounds[2],bounds[3],bounds[0],0,tiles,scanLine);return Object.keys(t).map(function(id){return t[id]})}},{"../geo/coordinate":27,"whoots-js":214}],62:[function(require,module,exports){"use strict";var Evented=require("../util/evented");var util=require("../util/util");var loadTileJSON=require("./load_tilejson");var normalizeURL=require("../util/mapbox").normalizeTileURL;module.exports=VectorTileSource;function VectorTileSource(id,options,dispatcher,eventedParent){this.id=id;this.dispatcher=dispatcher;util.extend(this,util.pick(options,["url","scheme","tileSize"]));this._options=util.extend({type:"vector"},options);if(this.tileSize!==512){throw new Error("vector tile sources must have a tileSize of 512")}this.setEventedParent(eventedParent);this.fire("dataloading",{dataType:"source"});loadTileJSON(options,function(err,tileJSON){if(err){this.fire("error",err);return}util.extend(this,tileJSON);this.fire("data",{dataType:"source"});this.fire("source.load")}.bind(this))}VectorTileSource.prototype=util.inherit(Evented,{minzoom:0,maxzoom:22,scheme:"xyz",tileSize:512,reparseOverscaled:true,isTileClipped:true,onAdd:function(map){this.map=map},serialize:function(){return util.extend({},this._options)},loadTile:function(tile,callback){var overscaling=tile.coord.z>this.maxzoom?Math.pow(2,tile.coord.z-this.maxzoom):1;var params={url:normalizeURL(tile.coord.url(this.tiles,this.maxzoom,this.scheme),this.url),uid:tile.uid,coord:tile.coord,zoom:tile.coord.z,tileSize:this.tileSize*overscaling,source:this.id,overscaling:overscaling,angle:this.map.transform.angle,pitch:this.map.transform.pitch,showCollisionBoxes:this.map.showCollisionBoxes};if(!tile.workerID){tile.workerID=this.dispatcher.send("load tile",params,done.bind(this))}else if(tile.state==="loading"){tile.reloadCallback=callback}else{this.dispatcher.send("reload tile",params,done.bind(this),tile.workerID)}function done(err,data){if(tile.aborted)return;if(err){return callback(err)}tile.loadVectorData(data,this.map.painter);if(tile.redoWhenDone){tile.redoWhenDone=false;tile.redoPlacement(this)}callback(null);if(tile.reloadCallback){this.loadTile(tile,tile.reloadCallback);tile.reloadCallback=null}}},abortTile:function(tile){this.dispatcher.send("abort tile",{uid:tile.uid,source:this.id},null,tile.workerID)},unloadTile:function(tile){tile.unloadVectorData();this.dispatcher.send("remove tile",{uid:tile.uid,source:this.id},null,tile.workerID)}})},{"../util/evented":128,"../util/mapbox":134,"../util/util":137,"./load_tilejson":54}],63:[function(require,module,exports){"use strict";var ajax=require("../util/ajax");var vt=require("vector-tile");var Protobuf=require("pbf");var WorkerTile=require("./worker_tile");var util=require("../util/util");module.exports=VectorTileWorkerSource;function VectorTileWorkerSource(actor,styleLayers,loadVectorData){this.actor=actor;this.styleLayers=styleLayers;if(loadVectorData){this.loadVectorData=loadVectorData}this.loading={};this.loaded={}}VectorTileWorkerSource.prototype={loadTile:function(params,callback){var source=params.source,uid=params.uid;if(!this.loading[source])this.loading[source]={};var workerTile=this.loading[source][uid]=new WorkerTile(params);workerTile.abort=this.loadVectorData(params,done.bind(this));function done(err,vectorTile){delete this.loading[source][uid];if(err)return callback(err);if(!vectorTile)return callback(null,null);workerTile.vectorTile=vectorTile;workerTile.parse(vectorTile,this.styleLayers.getLayerFamilies(),this.actor,function(err,result,transferrables){if(err)return callback(err);callback(null,util.extend({rawTileData:vectorTile.rawData},result),transferrables)});this.loaded[source]=this.loaded[source]||{};this.loaded[source][uid]=workerTile}},reloadTile:function(params,callback){var loaded=this.loaded[params.source],uid=params.uid;if(loaded&&loaded[uid]){var workerTile=loaded[uid];workerTile.parse(workerTile.vectorTile,this.styleLayers.getLayerFamilies(),this.actor,callback)}},abortTile:function(params){var loading=this.loading[params.source],uid=params.uid;if(loading&&loading[uid]&&loading[uid].abort){loading[uid].abort();delete loading[uid]}},removeTile:function(params){var loaded=this.loaded[params.source],uid=params.uid;if(loaded&&loaded[uid]){delete loaded[uid]}},loadVectorData:function(params,callback){var xhr=ajax.getArrayBuffer(params.url,done.bind(this));return function abort(){xhr.abort()};function done(err,arrayBuffer){if(err){return callback(err)}var vectorTile=new vt.VectorTile(new Protobuf(arrayBuffer));vectorTile.rawData=arrayBuffer;callback(err,vectorTile)}},redoPlacement:function(params,callback){var loaded=this.loaded[params.source],loading=this.loading[params.source],uid=params.uid;if(loaded&&loaded[uid]){var workerTile=loaded[uid];var result=workerTile.redoPlacement(params.angle,params.pitch,params.showCollisionBoxes);if(result.result){callback(null,result.result,result.transferables)}}else if(loading&&loading[uid]){loading[uid].angle=params.angle}}}},{"../util/ajax":119,"../util/util":137,"./worker_tile":66,pbf:194,"vector-tile":206}],64:[function(require,module,exports){"use strict";var util=require("../util/util");var ajax=require("../util/ajax");var ImageSource=require("./image_source");module.exports=VideoSource;function VideoSource(id,options,dispatcher,eventedParent){this.id=id;this.urls=options.urls;this.coordinates=options.coordinates;this.setEventedParent(eventedParent);this.fire("dataloading",{dataType:"source"});ajax.getVideo(options.urls,function(err,video){if(err)return this.fire("error",{error:err});this.video=video;this.video.loop=true;var loopID;this.video.addEventListener("playing",function(){loopID=this.map.style.animationLoop.set(Infinity);this.map._rerender()}.bind(this));this.video.addEventListener("pause",function(){this.map.style.animationLoop.cancel(loopID)}.bind(this));if(this.map){this.video.play();this.setCoordinates(options.coordinates)}this.fire("data",{dataType:"source"});this.fire("source.load")}.bind(this))}VideoSource.prototype=util.inherit(ImageSource,{roundZoom:true,getVideo:function(){return this.video},onAdd:function(map){if(this.map)return;this.map=map;if(this.video){this.video.play();this.setCoordinates(this.coordinates)}},prepare:function(){if(!this.tile||this.video.readyState<2)return;this._prepareImage(this.map.painter.gl,this.video)},serialize:function(){return{type:"video",urls:this.urls,coordinates:this.coordinates}}})},{"../util/ajax":119,"../util/util":137,"./image_source":53}],65:[function(require,module,exports){"use strict";var Actor=require("../util/actor");var StyleLayer=require("../style/style_layer");var util=require("../util/util");var VectorTileWorkerSource=require("./vector_tile_worker_source");var GeoJSONWorkerSource=require("./geojson_worker_source");var featureFilter=require("feature-filter");module.exports=function createWorker(self){return new Worker(self)};function Worker(self){this.self=self;this.actor=new Actor(self,this);this.layers={};this.layerFamilies={};this.workerSourceTypes={vector:VectorTileWorkerSource,geojson:GeoJSONWorkerSource};this.workerSources={};this.self.registerWorkerSource=function(name,WorkerSource){if(this.workerSourceTypes[name]){throw new Error('Worker source with name "'+name+'" already registered.')}this.workerSourceTypes[name]=WorkerSource}.bind(this)}util.extend(Worker.prototype,{"set layers":function(mapId,layerDefinitions){var layers=this.layers[mapId]={};var childLayerIndicies=[];for(var i=0;i<layerDefinitions.length;i++){var layer=layerDefinitions[i];if(layer.type==="fill"||layer.type==="line"||layer.type==="circle"||layer.type==="symbol"){if(layer.ref){childLayerIndicies.push(i)}else{setLayer(layer)}}}for(var j=0;j<childLayerIndicies.length;j++){setLayer(layerDefinitions[childLayerIndicies[j]])}function setLayer(serializedLayer){var styleLayer=StyleLayer.create(serializedLayer,serializedLayer.ref&&layers[serializedLayer.ref]);styleLayer.updatePaintTransitions({},{transition:false});styleLayer.filter=featureFilter(styleLayer.filter);layers[styleLayer.id]=styleLayer}this.layerFamilies[mapId]=createLayerFamilies(this.layers[mapId])},"update layers":function(mapId,layerDefinitions){var id;var layer;var layers=this.layers[mapId];for(id in layerDefinitions){layer=layerDefinitions[id];if(layer.ref)updateLayer(layer)}for(id in layerDefinitions){layer=layerDefinitions[id];if(!layer.ref)updateLayer(layer)}function updateLayer(layer){var refLayer=layers[layer.ref];var styleLayer=layers[layer.id];if(styleLayer){styleLayer.set(layer,refLayer)}else{styleLayer=layers[layer.id]=StyleLayer.create(layer,refLayer)}styleLayer.updatePaintTransitions({},{transition:false});styleLayer.filter=featureFilter(styleLayer.filter)}this.layerFamilies[mapId]=createLayerFamilies(this.layers[mapId])},"load tile":function(mapId,params,callback){var type=params.type||"vector";this.getWorkerSource(mapId,type).loadTile(params,callback)},"reload tile":function(mapId,params,callback){var type=params.type||"vector";this.getWorkerSource(mapId,type).reloadTile(params,callback)},"abort tile":function(mapId,params){var type=params.type||"vector";this.getWorkerSource(mapId,type).abortTile(params)},"remove tile":function(mapId,params){var type=params.type||"vector";this.getWorkerSource(mapId,type).removeTile(params)},"redo placement":function(mapId,params,callback){var type=params.type||"vector";this.getWorkerSource(mapId,type).redoPlacement(params,callback)},"load worker source":function(map,params,callback){try{this.self.importScripts(params.url);callback()}catch(e){callback(e)}},getWorkerSource:function(mapId,type){if(!this.workerSources[mapId])this.workerSources[mapId]={};if(!this.workerSources[mapId][type]){var layers={getLayers:function(){return this.layers[mapId]}.bind(this),getLayerFamilies:function(){return this.layerFamilies[mapId]}.bind(this)};var actor={send:function(type,data,callback,buffers){this.actor.send(type,data,callback,buffers,mapId)}.bind(this)};this.workerSources[mapId][type]=new this.workerSourceTypes[type](actor,layers)}return this.workerSources[mapId][type]}});function createLayerFamilies(layers){var families={};for(var layerId in layers){var layer=layers[layerId];var parentLayerId=layer.ref||layer.id;var parentLayer=layers[parentLayerId];if(parentLayer.layout&&parentLayer.layout.visibility==="none")continue;families[parentLayerId]=families[parentLayerId]||[];if(layerId===parentLayerId){families[parentLayerId].unshift(layer)}else{families[parentLayerId].push(layer)}}return families}},{"../style/style_layer":74,"../util/actor":118,"../util/util":137,"./geojson_worker_source":51,"./vector_tile_worker_source":63,"feature-filter":142}],66:[function(require,module,exports){"use strict";var FeatureIndex=require("../data/feature_index");var CollisionTile=require("../symbol/collision_tile");var Bucket=require("../data/bucket");var CollisionBoxArray=require("../symbol/collision_box");var DictionaryCoder=require("../util/dictionary_coder");var util=require("../util/util");var SymbolInstancesArray=require("../symbol/symbol_instances");var SymbolQuadsArray=require("../symbol/symbol_quads");module.exports=WorkerTile;function WorkerTile(params){this.coord=params.coord;this.uid=params.uid;this.zoom=params.zoom;this.tileSize=params.tileSize;this.source=params.source;this.overscaling=params.overscaling;this.angle=params.angle;this.pitch=params.pitch;this.showCollisionBoxes=params.showCollisionBoxes}WorkerTile.prototype.parse=function(data,layerFamilies,actor,callback){this.status="parsing";this.data=data;this.collisionBoxArray=new CollisionBoxArray;this.symbolInstancesArray=new SymbolInstancesArray;this.symbolQuadsArray=new SymbolQuadsArray;var collisionTile=new CollisionTile(this.angle,this.pitch,this.collisionBoxArray);var featureIndex=new FeatureIndex(this.coord,this.overscaling,collisionTile,data.layers);var sourceLayerCoder=new DictionaryCoder(data.layers?Object.keys(data.layers).sort():["_geojsonTileLayer"]);var tile=this;var bucketsById={};var bucketsBySourceLayer={};var i;var layer;var sourceLayerId;var bucket;var bucketIndex=0;for(var layerId in layerFamilies){layer=layerFamilies[layerId][0];if(layer.source!==this.source)continue;if(layer.ref)continue;if(layer.minzoom&&this.zoom<layer.minzoom)continue;if(layer.maxzoom&&this.zoom>=layer.maxzoom)continue;if(layer.layout&&layer.layout.visibility==="none")continue;if(data.layers&&!data.layers[layer.sourceLayer])continue;bucket=Bucket.create({layer:layer,index:bucketIndex++,childLayers:layerFamilies[layerId],zoom:this.zoom,overscaling:this.overscaling,showCollisionBoxes:this.showCollisionBoxes,collisionBoxArray:this.collisionBoxArray,symbolQuadsArray:this.symbolQuadsArray,symbolInstancesArray:this.symbolInstancesArray,sourceLayerIndex:sourceLayerCoder.encode(layer.sourceLayer||"_geojsonTileLayer")});bucketsById[layer.id]=bucket;if(data.layers){sourceLayerId=layer.sourceLayer;bucketsBySourceLayer[sourceLayerId]=bucketsBySourceLayer[sourceLayerId]||{};bucketsBySourceLayer[sourceLayerId][layer.id]=bucket}}if(data.layers){for(sourceLayerId in bucketsBySourceLayer){if(layer.version===1){util.warnOnce('Vector tile source "'+this.source+'" layer "'+sourceLayerId+'" does not use vector tile spec v2 '+"and therefore may have some rendering errors.")}layer=data.layers[sourceLayerId];if(layer){sortLayerIntoBuckets(layer,bucketsBySourceLayer[sourceLayerId])}}}else{sortLayerIntoBuckets(data,bucketsById)}function sortLayerIntoBuckets(layer,buckets){for(var i=0;i<layer.length;i++){var feature=layer.feature(i);feature.index=i;for(var id in buckets){if(buckets[id].layer.filter(feature))buckets[id].features.push(feature)}}}var buckets=[],symbolBuckets=this.symbolBuckets=[],otherBuckets=[];featureIndex.bucketLayerIDs={};for(var id in bucketsById){bucket=bucketsById[id];if(bucket.features.length===0)continue;featureIndex.bucketLayerIDs[bucket.index]=bucket.childLayers.map(getLayerId);buckets.push(bucket);if(bucket.type==="symbol")symbolBuckets.push(bucket);else otherBuckets.push(bucket)}var icons={};var stacks={};var deps=0;if(symbolBuckets.length>0){for(i=symbolBuckets.length-1;i>=0;i--){symbolBuckets[i].updateIcons(icons);symbolBuckets[i].updateFont(stacks)}for(var fontName in stacks){stacks[fontName]=Object.keys(stacks[fontName]).map(Number)}icons=Object.keys(icons);actor.send("get glyphs",{uid:this.uid,stacks:stacks},function(err,newStacks){stacks=newStacks;gotDependency(err)});if(icons.length){actor.send("get icons",{icons:icons},function(err,newIcons){icons=newIcons;gotDependency(err)})}else{gotDependency()}}for(i=otherBuckets.length-1;i>=0;i--){parseBucket(this,otherBuckets[i])}if(symbolBuckets.length===0)return done();function gotDependency(err){if(err)return callback(err);deps++;if(deps===2){for(var i=symbolBuckets.length-1;i>=0;i--){parseBucket(tile,symbolBuckets[i])}done()}}function parseBucket(tile,bucket){bucket.populateArrays(collisionTile,stacks,icons);if(bucket.type!=="symbol"){for(var i=0;i<bucket.features.length;i++){var feature=bucket.features[i];featureIndex.insert(feature,feature.index,bucket.sourceLayerIndex,bucket.index)}}bucket.features=null}function done(){tile.status="done";if(tile.redoPlacementAfterDone){tile.redoPlacement(tile.angle,tile.pitch,null);tile.redoPlacementAfterDone=false}var featureIndex_=featureIndex.serialize();var collisionTile_=collisionTile.serialize();var collisionBoxArray=tile.collisionBoxArray.serialize();var symbolInstancesArray=tile.symbolInstancesArray.serialize();var symbolQuadsArray=tile.symbolQuadsArray.serialize();var nonEmptyBuckets=buckets.filter(isBucketNonEmpty);callback(null,{buckets:nonEmptyBuckets.map(serializeBucket),featureIndex:featureIndex_.data,collisionTile:collisionTile_.data,collisionBoxArray:collisionBoxArray,symbolInstancesArray:symbolInstancesArray,symbolQuadsArray:symbolQuadsArray},getTransferables(nonEmptyBuckets).concat(featureIndex_.transferables).concat(collisionTile_.transferables))}};WorkerTile.prototype.redoPlacement=function(angle,pitch,showCollisionBoxes){if(this.status!=="done"){this.redoPlacementAfterDone=true;this.angle=angle;return{}}var collisionTile=new CollisionTile(angle,pitch,this.collisionBoxArray);var buckets=this.symbolBuckets;for(var i=buckets.length-1;i>=0;i--){buckets[i].placeFeatures(collisionTile,showCollisionBoxes)}var collisionTile_=collisionTile.serialize();var nonEmptyBuckets=buckets.filter(isBucketNonEmpty);return{result:{buckets:nonEmptyBuckets.map(serializeBucket),collisionTile:collisionTile_.data},transferables:getTransferables(nonEmptyBuckets).concat(collisionTile_.transferables)}};function isBucketNonEmpty(bucket){return!bucket.isEmpty()}function serializeBucket(bucket){return bucket.serialize()}function getTransferables(buckets){var transferables=[];for(var i in buckets){buckets[i].getTransferables(transferables)}return transferables}function getLayerId(layer){return layer.id}},{"../data/bucket":17,"../data/feature_index":25,"../symbol/collision_box":87,"../symbol/collision_tile":89,"../symbol/symbol_instances":98,"../symbol/symbol_quads":99,"../util/dictionary_coder":125,"../util/util":137}],67:[function(require,module,exports){"use strict";module.exports=AnimationLoop;function AnimationLoop(){this.n=0;this.times=[]}AnimationLoop.prototype.stopped=function(){this.times=this.times.filter(function(t){return t.time>=(new Date).getTime()});return!this.times.length};AnimationLoop.prototype.set=function(t){this.times.push({id:this.n,time:t+(new Date).getTime()});return this.n++};AnimationLoop.prototype.cancel=function(n){this.times=this.times.filter(function(t){return t.id!==n})}},{}],68:[function(require,module,exports){"use strict";var Evented=require("../util/evented");var ajax=require("../util/ajax");var browser=require("../util/browser");var normalizeURL=require("../util/mapbox").normalizeSpriteURL;module.exports=ImageSprite;function ImageSprite(base){this.base=base;this.retina=browser.devicePixelRatio>1;var format=this.retina?"@2x":"";ajax.getJSON(normalizeURL(base,format,".json"),function(err,data){if(err){this.fire("error",{error:err});return}this.data=data;if(this.img)this.fire("data",{dataType:"style"})}.bind(this));ajax.getImage(normalizeURL(base,format,".png"),function(err,img){if(err){this.fire("error",{error:err});return}var data=img.getData();var newdata=img.data=new Uint8Array(data.length);for(var i=0;i<data.length;i+=4){var alpha=data[i+3]/255;newdata[i+0]=data[i+0]*alpha;newdata[i+1]=data[i+1]*alpha;newdata[i+2]=data[i+2]*alpha;newdata[i+3]=data[i+3]}this.img=img;if(this.data)this.fire("data",{dataType:"style"})}.bind(this))}ImageSprite.prototype=Object.create(Evented);ImageSprite.prototype.toJSON=function(){return this.base};ImageSprite.prototype.loaded=function(){return!!(this.data&&this.img)};ImageSprite.prototype.resize=function(){if(browser.devicePixelRatio>1!==this.retina){var newSprite=new ImageSprite(this.base);newSprite.on("data",function(){this.img=newSprite.img;this.data=newSprite.data;this.retina=newSprite.retina}.bind(this))}};function SpritePosition(){}SpritePosition.prototype={x:0,y:0,width:0,height:0,pixelRatio:1,sdf:false};ImageSprite.prototype.getSpritePosition=function(name){if(!this.loaded())return new SpritePosition;var pos=this.data&&this.data[name];if(pos&&this.img)return pos;return new SpritePosition}},{"../util/ajax":119,"../util/browser":120,"../util/evented":128,"../util/mapbox":134}],69:[function(require,module,exports){"use strict";var styleSpec=require("./style_spec");var util=require("../util/util");var Evented=require("../util/evented");var validateStyle=require("./validate_style");var StyleDeclaration=require("./style_declaration");var StyleTransition=require("./style_transition");module.exports=Light;var TRANSITION_SUFFIX="-transition";function Light(lightOptions){this.set(lightOptions)}Light.prototype=util.inherit(Evented,{properties:["anchor","color","position","intensity"],_specifications:styleSpec.$root.light,set:function(lightOpts){if(this._validate(validateStyle.light,lightOpts))return;this._declarations={};this._transitions={};this._transitionOptions={};this.calculated={};lightOpts=util.extend({anchor:this._specifications.anchor.default,color:this._specifications.color.default,position:this._specifications.position.default,intensity:this._specifications.intensity.default},lightOpts);for(var p in this.properties){var prop=this.properties[p];this._declarations[prop]=new StyleDeclaration(this._specifications[prop],lightOpts[prop])}return this},getLight:function(){return{anchor:this.getLightProperty("anchor"),color:this.getLightProperty("color"),position:this.getLightProperty("position"),intensity:this.getLightProperty("intensity")}},getLightProperty:function(property){if(util.endsWith(property,TRANSITION_SUFFIX)){return this._transitionOptions[property]}else{return this._declarations[property]&&this._declarations[property].value}},getLightValue:function(property,globalProperties){if(property==="position"){var calculated=this._transitions[property].calculate(globalProperties),cartesian=util.sphericalToCartesian(calculated);return{x:cartesian[0],y:cartesian[1],z:cartesian[2]}}return this._transitions[property].calculate(globalProperties)},setLight:function(options){if(this._validate(validateStyle.light,options))return;for(var key in options){var value=options[key];if(util.endsWith(key,TRANSITION_SUFFIX)){this._transitionOptions[key]=value}else if(value===null||value===undefined){delete this._declarations[key]}else{this._declarations[key]=new StyleDeclaration(this._specifications[key],value)}}},recalculate:function(zoom,zoomHistory){for(var property in this._declarations){this.calculated[property]=this.getLightValue(property,{zoom:zoom,zoomHistory:zoomHistory})}},_applyLightDeclaration:function(property,declaration,options,globalOptions,animationLoop){var oldTransition=options.transition?this._transitions[property]:undefined;var spec=this._specifications[property];if(declaration===null||declaration===undefined){declaration=new StyleDeclaration(spec,spec.default)}if(oldTransition&&oldTransition.declaration.json===declaration.json)return;var transitionOptions=util.extend({duration:300,delay:0},globalOptions,this.getLightProperty(property+TRANSITION_SUFFIX));var newTransition=this._transitions[property]=new StyleTransition(spec,declaration,oldTransition,transitionOptions);if(!newTransition.instant()){newTransition.loopID=animationLoop.set(newTransition.endTime-Date.now())}if(oldTransition){animationLoop.cancel(oldTransition.loopID)}},updateLightTransitions:function(options,globalOptions,animationLoop){var property;for(property in this._declarations){this._applyLightDeclaration(property,this._declarations[property],options,globalOptions,animationLoop)}},_validate:function(validate,value){return validateStyle.emitErrors(this,validate.call(validateStyle,util.extend({value:value,style:{glyphs:true,sprite:true},styleSpec:styleSpec})))}})},{"../util/evented":128,"../util/util":137,"./style_declaration":72,"./style_spec":81,"./style_transition":82,"./validate_style":83}],70:[function(require,module,exports){"use strict";var parseColorString=require("csscolorparser").parseCSSColor;var util=require("../util/util");var StyleFunction=require("./style_function");var cache={};module.exports=function parseColor(input){if(StyleFunction.isFunctionDefinition(input)){if(!input.stops)return input;else return util.extend({},input,{stops:input.stops.map(function(stop){return[stop[0],parseColor(stop[1])]})})}else if(typeof input==="string"){if(!cache[input]){var rgba=parseColorString(input);if(!rgba){throw new Error("Invalid color "+input)}cache[input]=[rgba[0]/255*rgba[3],rgba[1]/255*rgba[3],rgba[2]/255*rgba[3],rgba[3]]}return cache[input]}else if(Array.isArray(input)){return input}else{throw new Error("Invalid color "+input)}}},{"../util/util":137,"./style_function":73,csscolorparser:140}],71:[function(require,module,exports){"use strict";var Evented=require("../util/evented");var StyleLayer=require("./style_layer");var ImageSprite=require("./image_sprite");var Light=require("./light");var GlyphSource=require("../symbol/glyph_source");var SpriteAtlas=require("../symbol/sprite_atlas");var LineAtlas=require("../render/line_atlas");var util=require("../util/util");var ajax=require("../util/ajax");var mapbox=require("../util/mapbox");var browser=require("../util/browser");var Dispatcher=require("../util/dispatcher");var AnimationLoop=require("./animation_loop");var validateStyle=require("./validate_style");var Source=require("../source/source");var QueryFeatures=require("../source/query_features");var SourceCache=require("../source/source_cache");var styleSpec=require("./style_spec");var StyleFunction=require("./style_function");var getWorkerPool=require("../global_worker_pool");module.exports=Style;function Style(stylesheet,map,options){this.map=map;this.animationLoop=map&&map.animationLoop||new AnimationLoop;
this.dispatcher=new Dispatcher(getWorkerPool(),this);this.spriteAtlas=new SpriteAtlas(1024,1024);this.lineAtlas=new LineAtlas(256,512);this._layers={};this._order=[];this._groups=[];this.sourceCaches={};this.zoomHistory={};util.bindAll(["_redoPlacement"],this);this._resetUpdates();options=util.extend({validate:typeof stylesheet==="string"?!mapbox.isMapboxURL(stylesheet):true},options);this.setEventedParent(map);this.fire("dataloading",{dataType:"style"});var stylesheetLoaded=function(err,stylesheet){if(err){this.fire("error",{error:err});return}if(options.validate&&validateStyle.emitErrors(this,validateStyle(stylesheet)))return;this._loaded=true;this.stylesheet=stylesheet;this.updateClasses();for(var id in stylesheet.sources){this.addSource(id,stylesheet.sources[id],options)}if(stylesheet.sprite){this.sprite=new ImageSprite(stylesheet.sprite);this.sprite.setEventedParent(this)}this.glyphSource=new GlyphSource(stylesheet.glyphs);this._resolve();this.fire("data",{dataType:"style"});this.fire("style.load")}.bind(this);if(typeof stylesheet==="string"){ajax.getJSON(mapbox.normalizeStyleURL(stylesheet),stylesheetLoaded)}else{browser.frame(stylesheetLoaded.bind(this,null,stylesheet))}this.on("source.load",function(event){var source=event.source;if(source&&source.vectorLayerIds){for(var layerId in this._layers){var layer=this._layers[layerId];if(layer.source===source.id){this._validateLayer(layer)}}}})}Style.prototype=util.inherit(Evented,{_loaded:false,_validateLayer:function(layer){var sourceCache=this.sourceCaches[layer.source];if(!layer.sourceLayer)return;if(!sourceCache)return;var source=sourceCache.getSource();if(!source.vectorLayerIds)return;if(source.vectorLayerIds.indexOf(layer.sourceLayer)===-1){this.fire("error",{error:new Error('Source layer "'+layer.sourceLayer+'" '+'does not exist on source "'+source.id+'" '+'as specified by style layer "'+layer.id+'"')})}},loaded:function(){if(!this._loaded)return false;if(Object.keys(this._updates.sources).length)return false;for(var id in this.sourceCaches)if(!this.sourceCaches[id].loaded())return false;if(this.sprite&&!this.sprite.loaded())return false;return true},_resolve:function(){var layer,layerJSON;this._layers={};this._order=this.stylesheet.layers.map(function(layer){return layer.id});for(var i=0;i<this.stylesheet.layers.length;i++){layerJSON=this.stylesheet.layers[i];if(layerJSON.ref)continue;layer=StyleLayer.create(layerJSON);this._layers[layer.id]=layer;layer.setEventedParent(this,{layer:{id:layer.id}})}for(var j=0;j<this.stylesheet.layers.length;j++){layerJSON=this.stylesheet.layers[j];if(!layerJSON.ref)continue;var refLayer=this.getLayer(layerJSON.ref);layer=StyleLayer.create(layerJSON,refLayer);this._layers[layer.id]=layer;layer.setEventedParent(this,{layer:{id:layer.id}})}this._groupLayers();this._updateWorkerLayers();this.light=new Light(this.stylesheet.light)},_groupLayers:function(){var group;this._groups=[];for(var i=0;i<this._order.length;++i){var layer=this._layers[this._order[i]];if(!group||layer.source!==group.source){group=[];group.source=layer.source;this._groups.push(group)}group.push(layer)}},_updateWorkerLayers:function(ids){this.dispatcher.broadcast(ids?"update layers":"set layers",this._serializeLayers(ids))},_serializeLayers:function(ids){ids=ids||this._order;var serialized=[];var options={includeRefProperties:true};for(var i=0;i<ids.length;i++){serialized.push(this._layers[ids[i]].serialize(options))}return serialized},_applyClasses:function(classes,options){if(!this._loaded)return;classes=classes||[];options=options||{transition:true};var transition=this.stylesheet.transition||{};var layers=this._updates.allPaintProps?this._layers:this._updates.paintProps;for(var id in layers){var layer=this._layers[id];var props=this._updates.paintProps[id];if(this._updates.allPaintProps||props.all){layer.updatePaintTransitions(classes,options,transition,this.animationLoop)}else{for(var paintName in props){this._layers[id].updatePaintTransition(paintName,classes,options,transition,this.animationLoop)}}}this.light.updateLightTransitions(options,transition,this.animationLoop)},_recalculate:function(z){if(!this._loaded)return;for(var sourceId in this.sourceCaches)this.sourceCaches[sourceId].used=false;this._updateZoomHistory(z);this.rasterFadeDuration=300;for(var layerId in this._layers){var layer=this._layers[layerId];layer.recalculate(z,this.zoomHistory);if(!layer.isHidden(z)&&layer.source){this.sourceCaches[layer.source].used=true}}this.light.recalculate(z,this.zoomHistory);var maxZoomTransitionDuration=300;if(Math.floor(this.z)!==Math.floor(z)){this.animationLoop.set(maxZoomTransitionDuration)}this.z=z},_updateZoomHistory:function(z){var zh=this.zoomHistory;if(zh.lastIntegerZoom===undefined){zh.lastIntegerZoom=Math.floor(z);zh.lastIntegerZoomTime=0;zh.lastZoom=z}if(Math.floor(zh.lastZoom)<Math.floor(z)){zh.lastIntegerZoom=Math.floor(z);zh.lastIntegerZoomTime=Date.now()}else if(Math.floor(zh.lastZoom)>Math.floor(z)){zh.lastIntegerZoom=Math.floor(z+1);zh.lastIntegerZoomTime=Date.now()}zh.lastZoom=z},_checkLoaded:function(){if(!this._loaded){throw new Error("Style is not done loading")}},update:function(classes,options){if(!this._updates.changed)return this;if(this._updates.allLayers){this._groupLayers();this._updateWorkerLayers()}else{var updatedIds=Object.keys(this._updates.layers);if(updatedIds.length){this._updateWorkerLayers(updatedIds)}}var updatedSourceIds=Object.keys(this._updates.sources);var i;for(i=0;i<updatedSourceIds.length;i++){this._reloadSource(updatedSourceIds[i])}for(i=0;i<this._updates.events.length;i++){var args=this._updates.events[i];this.fire(args[0],args[1])}this._applyClasses(classes,options);if(this._updates.changed){this.fire("data",{dataType:"style"})}this._resetUpdates();return this},_resetUpdates:function(){this._updates={events:[],layers:{},sources:{},paintProps:{}}},addSource:function(id,source,options){this._checkLoaded();if(this.sourceCaches[id]!==undefined){throw new Error("There is already a source with this ID")}if(!source.type){throw new Error("The type property must be defined, but the only the following properties were given: "+Object.keys(source)+".")}var builtIns=["vector","raster","geojson","video","image"];var shouldValidate=builtIns.indexOf(source.type)>=0;if(shouldValidate&&this._validate(validateStyle.source,"sources."+id,source,null,options))return this;source=new SourceCache(id,source,this.dispatcher);this.sourceCaches[id]=source;source.style=this;source.setEventedParent(this,{source:source.getSource()});if(source.onAdd)source.onAdd(this.map);this._updates.changed=true;return this},removeSource:function(id){this._checkLoaded();if(this.sourceCaches[id]===undefined){throw new Error("There is no source with this ID")}var sourceCache=this.sourceCaches[id];delete this.sourceCaches[id];delete this._updates.sources[id];sourceCache.setEventedParent(null);sourceCache.clearTiles();if(sourceCache.onRemove)sourceCache.onRemove(this.map);this._updates.changed=true;return this},getSource:function(id){return this.sourceCaches[id]&&this.sourceCaches[id].getSource()},addLayer:function(layer,before,options){this._checkLoaded();if(!(layer instanceof StyleLayer)){if(this._validate(validateStyle.layer,"layers."+layer.id,layer,{arrayIndex:-1},options))return this;var refLayer=layer.ref&&this.getLayer(layer.ref);layer=StyleLayer.create(layer,refLayer)}this._validateLayer(layer);layer.setEventedParent(this,{layer:{id:layer.id}});this._layers[layer.id]=layer;this._order.splice(before?this._order.indexOf(before):Infinity,0,layer.id);this._updates.allLayers=true;if(layer.source){this._updates.sources[layer.source]=true}return this.updateClasses(layer.id)},removeLayer:function(id){this._checkLoaded();var layer=this._layers[id];if(layer===undefined){throw new Error("There is no layer with this ID")}for(var i in this._layers){if(this._layers[i].ref===id){this.removeLayer(i)}}layer.setEventedParent(null);delete this._layers[id];delete this._updates.layers[id];delete this._updates.paintProps[id];this._order.splice(this._order.indexOf(id),1);this._updates.allLayers=true;this._updates.changed=true;return this},getLayer:function(id){return this._layers[id]},getReferentLayer:function(id){var layer=this.getLayer(id);if(layer.ref){layer=this.getLayer(layer.ref)}return layer},setLayerZoomRange:function(layerId,minzoom,maxzoom){this._checkLoaded();var layer=this.getReferentLayer(layerId);if(layer.minzoom===minzoom&&layer.maxzoom===maxzoom)return this;if(minzoom!=null){layer.minzoom=minzoom}if(maxzoom!=null){layer.maxzoom=maxzoom}return this._updateLayer(layer)},setFilter:function(layerId,filter){this._checkLoaded();var layer=this.getReferentLayer(layerId);if(filter!==null&&this._validate(validateStyle.filter,"layers."+layer.id+".filter",filter))return this;if(util.deepEqual(layer.filter,filter))return this;layer.filter=util.clone(filter);return this._updateLayer(layer)},getFilter:function(layer){return util.clone(this.getReferentLayer(layer).filter)},setLayoutProperty:function(layerId,name,value){this._checkLoaded();var layer=this.getReferentLayer(layerId);if(util.deepEqual(layer.getLayoutProperty(name),value))return this;layer.setLayoutProperty(name,value);return this._updateLayer(layer)},getLayoutProperty:function(layer,name){return this.getReferentLayer(layer).getLayoutProperty(name)},setPaintProperty:function(layerId,name,value,klass){this._checkLoaded();var layer=this.getLayer(layerId);if(util.deepEqual(layer.getPaintProperty(name,klass),value))return this;var wasFeatureConstant=layer.isPaintValueFeatureConstant(name);layer.setPaintProperty(name,value,klass);var isFeatureConstant=!(value&&StyleFunction.isFunctionDefinition(value)&&value.property!=="$zoom"&&value.property!==undefined);if(!isFeatureConstant||!wasFeatureConstant){this._updates.layers[layerId]=true;if(layer.source){this._updates.sources[layer.source]=true}}return this.updateClasses(layerId,name)},getPaintProperty:function(layer,name,klass){return this.getLayer(layer).getPaintProperty(name,klass)},updateClasses:function(layerId,paintName){this._updates.changed=true;if(!layerId){this._updates.allPaintProps=true}else{var props=this._updates.paintProps;if(!props[layerId])props[layerId]={};props[layerId][paintName||"all"]=true}return this},serialize:function(){return util.filterObject({version:this.stylesheet.version,name:this.stylesheet.name,metadata:this.stylesheet.metadata,light:this.stylesheet.light,center:this.stylesheet.center,zoom:this.stylesheet.zoom,bearing:this.stylesheet.bearing,pitch:this.stylesheet.pitch,sprite:this.stylesheet.sprite,glyphs:this.stylesheet.glyphs,transition:this.stylesheet.transition,sources:util.mapObject(this.sourceCaches,function(source){return source.serialize()}),layers:this._order.map(function(id){return this._layers[id].serialize()},this)},function(value){return value!==undefined})},_updateLayer:function(layer){this._updates.layers[layer.id]=true;if(layer.source){this._updates.sources[layer.source]=true}this._updates.changed=true;return this},_flattenRenderedFeatures:function(sourceResults){var features=[];for(var l=this._order.length-1;l>=0;l--){var layerID=this._order[l];for(var s=0;s<sourceResults.length;s++){var layerFeatures=sourceResults[s][layerID];if(layerFeatures){for(var f=0;f<layerFeatures.length;f++){features.push(layerFeatures[f])}}}}return features},queryRenderedFeatures:function(queryGeometry,params,zoom,bearing){if(params&&params.filter){this._validate(validateStyle.filter,"queryRenderedFeatures.filter",params.filter)}var includedSources={};if(params&&params.layers){for(var i=0;i<params.layers.length;i++){var layer=this._layers[params.layers[i]];if(!(layer instanceof StyleLayer)){return this.fire("error",{error:"The layer '"+params.layers[i]+"' does not exist in the map's style and cannot be queried for features."})}includedSources[layer.source]=true}}var sourceResults=[];for(var id in this.sourceCaches){if(params.layers&&!includedSources[id])continue;var sourceCache=this.sourceCaches[id];var results=QueryFeatures.rendered(sourceCache,this._layers,queryGeometry,params,zoom,bearing);sourceResults.push(results)}return this._flattenRenderedFeatures(sourceResults)},querySourceFeatures:function(sourceID,params){if(params&&params.filter){this._validate(validateStyle.filter,"querySourceFeatures.filter",params.filter)}var sourceCache=this.sourceCaches[sourceID];return sourceCache?QueryFeatures.source(sourceCache,params):[]},addSourceType:function(name,SourceType,callback){if(Source.getType(name)){return callback(new Error('A source type called "'+name+'" already exists.'))}Source.setType(name,SourceType);if(!SourceType.workerSourceURL){return callback(null,null)}this.dispatcher.broadcast("load worker source",{name:name,url:SourceType.workerSourceURL},callback)},getLight:function(){return this.light.getLight()},setLight:function(lightOptions,transitionOptions){this._checkLoaded();var light=this.light.getLight();var _update=false;for(var key in lightOptions){if(!util.deepEqual(lightOptions[key],light[key])){_update=true;break}}if(!_update)return this;var transition=this.stylesheet.transition||{};this.light.setLight(lightOptions);return this.light.updateLightTransitions(transitionOptions||{transition:true},transition,this.animationLoop)},_validate:function(validate,key,value,props,options){if(options&&options.validate===false){return false}return validateStyle.emitErrors(this,validate.call(validateStyle,util.extend({key:key,style:this.serialize(),value:value,styleSpec:styleSpec},props)))},_remove:function(){for(var id in this.sourceCaches){this.sourceCaches[id].clearTiles()}this.dispatcher.remove()},_reloadSource:function(id){this.sourceCaches[id].reload()},_updateSources:function(transform){for(var id in this.sourceCaches){this.sourceCaches[id].update(transform)}},_redoPlacement:function(){for(var id in this.sourceCaches){if(this.sourceCaches[id].redoPlacement)this.sourceCaches[id].redoPlacement()}},"get icons":function(mapId,params,callback){var sprite=this.sprite;var spriteAtlas=this.spriteAtlas;if(sprite.loaded()){spriteAtlas.setSprite(sprite);spriteAtlas.addIcons(params.icons,callback)}else{sprite.on("data",function(){spriteAtlas.setSprite(sprite);spriteAtlas.addIcons(params.icons,callback)})}},"get glyphs":function(mapId,params,callback){var stacks=params.stacks,remaining=Object.keys(stacks).length,allGlyphs={};for(var fontName in stacks){this.glyphSource.getSimpleGlyphs(fontName,stacks[fontName],params.uid,done)}function done(err,glyphs,fontName){if(err)console.error(err);allGlyphs[fontName]=glyphs;remaining--;if(remaining===0)callback(null,allGlyphs)}}})},{"../global_worker_pool":31,"../render/line_atlas":45,"../source/query_features":56,"../source/source":58,"../source/source_cache":59,"../symbol/glyph_source":92,"../symbol/sprite_atlas":97,"../util/ajax":119,"../util/browser":120,"../util/dispatcher":126,"../util/evented":128,"../util/mapbox":134,"../util/util":137,"./animation_loop":67,"./image_sprite":68,"./light":69,"./style_function":73,"./style_layer":74,"./style_spec":81,"./validate_style":83}],72:[function(require,module,exports){"use strict";var MapboxGLFunction=require("./style_function");var parseColor=require("./parse_color");var util=require("../util/util");module.exports=StyleDeclaration;function StyleDeclaration(reference,value){this.value=util.clone(value);this.isFunction=MapboxGLFunction.isFunctionDefinition(value);this.json=JSON.stringify(this.value);var parsedValue=reference.type==="color"&&this.value?parseColor(this.value):value;var specDefault=reference.default;if(specDefault&&reference.type==="color")specDefault=parseColor(specDefault);this.calculate=MapboxGLFunction[reference.function||"piecewise-constant"](parsedValue);this.isFeatureConstant=this.calculate.isFeatureConstant;this.isZoomConstant=this.calculate.isZoomConstant;if(reference.type==="color"){this.calculate=wrapColorCalculate(this.calculate)}if(reference.function==="piecewise-constant"&&reference.transition){this.calculate=wrapTransitionedCalculate(this.calculate)}if(!this.isFeatureConstant&&!this.isZoomConstant){this.stopZoomLevels=[];var interpolationAmountStops=[];var stops=this.value.stops;for(var i=0;i<this.value.stops.length;i++){var zoom=stops[i][0].zoom;if(this.stopZoomLevels.indexOf(zoom)<0){this.stopZoomLevels.push(zoom);interpolationAmountStops.push([zoom,interpolationAmountStops.length])}}this.calculateInterpolationT=MapboxGLFunction.interpolated({stops:interpolationAmountStops,base:value.base,colorSpace:value.colorSpace})}}function wrapColorCalculate(calculate){return function(globalProperties,featureProperties){var color=calculate(globalProperties,featureProperties);return color&&parseColor(color)}}function wrapTransitionedCalculate(calculate){return function(globalProperties,featureProperties){var z=globalProperties.zoom;var zh=globalProperties.zoomHistory;var duration=globalProperties.duration;var fraction=z%1;var t=Math.min((Date.now()-zh.lastIntegerZoomTime)/duration,1);var fromScale=1;var toScale=1;var mix,from,to;if(z>zh.lastIntegerZoom){mix=fraction+(1-fraction)*t;fromScale*=2;from=calculate({zoom:z-1},featureProperties);to=calculate({zoom:z},featureProperties)}else{mix=1-(1-t)*fraction;to=calculate({zoom:z},featureProperties);from=calculate({zoom:z+1},featureProperties);fromScale/=2}if(from===undefined||to===undefined){return undefined}else{return{from:from,fromScale:fromScale,to:to,toScale:toScale,t:mix}}}}},{"../util/util":137,"./parse_color":70,"./style_function":73}],73:[function(require,module,exports){"use strict";var MapboxGLFunction=require("mapbox-gl-function");exports.interpolated=function(parameters,specDefault){var inner=MapboxGLFunction.interpolated(parameters,specDefault);var outer=function(globalProperties,featureProperties){return inner(globalProperties&&globalProperties.zoom,featureProperties||{})};outer.isFeatureConstant=inner.isFeatureConstant;outer.isZoomConstant=inner.isZoomConstant;return outer};exports["piecewise-constant"]=function(parameters,specDefault){var inner=MapboxGLFunction["piecewise-constant"](parameters,specDefault);var outer=function(globalProperties,featureProperties){return inner(globalProperties&&globalProperties.zoom,featureProperties||{})};outer.isFeatureConstant=inner.isFeatureConstant;outer.isZoomConstant=inner.isZoomConstant;return outer};exports.isFunctionDefinition=MapboxGLFunction.isFunctionDefinition},{"mapbox-gl-function":166}],74:[function(require,module,exports){"use strict";var util=require("../util/util");var StyleTransition=require("./style_transition");var StyleDeclaration=require("./style_declaration");var styleSpec=require("./style_spec");var validateStyle=require("./validate_style");var parseColor=require("./parse_color");var Evented=require("../util/evented");module.exports=StyleLayer;var TRANSITION_SUFFIX="-transition";function StyleLayer(layer,refLayer){this.set(layer,refLayer)}StyleLayer.prototype=util.inherit(Evented,{set:function(layer,refLayer){this.id=layer.id;this.ref=layer.ref;this.metadata=layer.metadata;this.type=(refLayer||layer).type;this.source=(refLayer||layer).source;this.sourceLayer=(refLayer||layer)["source-layer"];this.minzoom=(refLayer||layer).minzoom;this.maxzoom=(refLayer||layer).maxzoom;this.filter=(refLayer||layer).filter;this.paint={};this.layout={};this._paintSpecifications=styleSpec["paint_"+this.type];this._layoutSpecifications=styleSpec["layout_"+this.type];this._paintTransitions={};this._paintTransitionOptions={};this._paintDeclarations={};this._layoutDeclarations={};this._layoutFunctions={};var paintName,layoutName;var options={validate:false};for(var key in layer){var match=key.match(/^paint(?:\.(.*))?$/);if(match){var klass=match[1]||"";for(paintName in layer[key]){this.setPaintProperty(paintName,layer[key][paintName],klass,options)}}}if(this.ref){this._layoutDeclarations=refLayer._layoutDeclarations}else{for(layoutName in layer.layout){this.setLayoutProperty(layoutName,layer.layout[layoutName],options)}}for(paintName in this._paintSpecifications){this.paint[paintName]=this.getPaintValue(paintName)}for(layoutName in this._layoutSpecifications){this._updateLayoutValue(layoutName)}},setLayoutProperty:function(name,value,options){if(value==null){delete this._layoutDeclarations[name]}else{var key="layers."+this.id+".layout."+name;if(this._validate(validateStyle.layoutProperty,key,name,value,options))return;this._layoutDeclarations[name]=new StyleDeclaration(this._layoutSpecifications[name],value)}this._updateLayoutValue(name)},getLayoutProperty:function(name){return this._layoutDeclarations[name]&&this._layoutDeclarations[name].value},getLayoutValue:function(name,globalProperties,featureProperties){var specification=this._layoutSpecifications[name];var declaration=this._layoutDeclarations[name];if(declaration){return declaration.calculate(globalProperties,featureProperties)}else{return specification.default}},setPaintProperty:function(name,value,klass,options){var validateStyleKey="layers."+this.id+(klass?'["paint.'+klass+'"].':".paint.")+name;if(util.endsWith(name,TRANSITION_SUFFIX)){if(!this._paintTransitionOptions[klass||""]){this._paintTransitionOptions[klass||""]={}}if(value===null||value===undefined){delete this._paintTransitionOptions[klass||""][name]}else{if(this._validate(validateStyle.paintProperty,validateStyleKey,name,value,options))return;this._paintTransitionOptions[klass||""][name]=value}}else{if(!this._paintDeclarations[klass||""]){this._paintDeclarations[klass||""]={}}if(value===null||value===undefined){delete this._paintDeclarations[klass||""][name]}else{if(this._validate(validateStyle.paintProperty,validateStyleKey,name,value,options))return;this._paintDeclarations[klass||""][name]=new StyleDeclaration(this._paintSpecifications[name],value)}}},getPaintProperty:function(name,klass){klass=klass||"";if(util.endsWith(name,TRANSITION_SUFFIX)){return this._paintTransitionOptions[klass]&&this._paintTransitionOptions[klass][name]}else{return this._paintDeclarations[klass]&&this._paintDeclarations[klass][name]&&this._paintDeclarations[klass][name].value}},getPaintValue:function(name,globalProperties,featureProperties){var specification=this._paintSpecifications[name];var transition=this._paintTransitions[name];if(transition){return transition.calculate(globalProperties,featureProperties)}else if(specification.type==="color"&&specification.default){return parseColor(specification.default)}else{return specification.default}},getPaintValueStopZoomLevels:function(name){var transition=this._paintTransitions[name];if(transition){return transition.declaration.stopZoomLevels}else{return[]}},getPaintInterpolationT:function(name,zoom){var transition=this._paintTransitions[name];return transition.declaration.calculateInterpolationT({zoom:zoom})},isPaintValueFeatureConstant:function(name){var transition=this._paintTransitions[name];if(transition){return transition.declaration.isFeatureConstant}else{return true}},isLayoutValueFeatureConstant:function(name){var declaration=this._layoutDeclarations[name];if(declaration){return declaration.isFeatureConstant}else{return true}},isPaintValueZoomConstant:function(name){var transition=this._paintTransitions[name];if(transition){return transition.declaration.isZoomConstant}else{return true}},isHidden:function(zoom){if(this.minzoom&&zoom<this.minzoom)return true;if(this.maxzoom&&zoom>=this.maxzoom)return true;if(this.layout["visibility"]==="none")return true;return false},updatePaintTransitions:function(classes,options,globalOptions,animationLoop){var declarations=util.extend({},this._paintDeclarations[""]);for(var i=0;i<classes.length;i++){util.extend(declarations,this._paintDeclarations[classes[i]])}var name;for(name in declarations){this._applyPaintDeclaration(name,declarations[name],options,globalOptions,animationLoop)}for(name in this._paintTransitions){if(!(name in declarations))this._applyPaintDeclaration(name,null,options,globalOptions,animationLoop)}},updatePaintTransition:function(name,classes,options,globalOptions,animationLoop){var declaration=this._paintDeclarations[""][name];for(var i=0;i<classes.length;i++){var classPaintDeclarations=this._paintDeclarations[classes[i]];if(classPaintDeclarations&&classPaintDeclarations[name]){declaration=classPaintDeclarations[name]}}this._applyPaintDeclaration(name,declaration,options,globalOptions,animationLoop)},recalculate:function(zoom,zoomHistory){for(var paintName in this._paintTransitions){this.paint[paintName]=this.getPaintValue(paintName,{zoom:zoom,zoomHistory:zoomHistory})}for(var layoutName in this._layoutFunctions){this.layout[layoutName]=this.getLayoutValue(layoutName,{zoom:zoom,zoomHistory:zoomHistory})}},serialize:function(options){var output={id:this.id,ref:this.ref,metadata:this.metadata,minzoom:this.minzoom,maxzoom:this.maxzoom};for(var klass in this._paintDeclarations){var key=klass===""?"paint":"paint."+klass;output[key]=util.mapObject(this._paintDeclarations[klass],getDeclarationValue)}if(!this.ref||options&&options.includeRefProperties){util.extend(output,{type:this.type,source:this.source,"source-layer":this.sourceLayer,filter:this.filter,layout:util.mapObject(this._layoutDeclarations,getDeclarationValue)})}return util.filterObject(output,function(value,key){return value!==undefined&&!(key==="layout"&&!Object.keys(value).length)})},_applyPaintDeclaration:function(name,declaration,options,globalOptions,animationLoop){var oldTransition=options.transition?this._paintTransitions[name]:undefined;var spec=this._paintSpecifications[name];if(declaration===null||declaration===undefined){declaration=new StyleDeclaration(spec,spec.default)}if(oldTransition&&oldTransition.declaration.json===declaration.json)return;var transitionOptions=util.extend({duration:300,delay:0},globalOptions,this.getPaintProperty(name+TRANSITION_SUFFIX));var newTransition=this._paintTransitions[name]=new StyleTransition(spec,declaration,oldTransition,transitionOptions);if(!newTransition.instant()){newTransition.loopID=animationLoop.set(newTransition.endTime-Date.now())}if(oldTransition){animationLoop.cancel(oldTransition.loopID)}},_updateLayoutValue:function(name){var declaration=this._layoutDeclarations[name];if(declaration&&declaration.isFunction){this._layoutFunctions[name]=true}else{delete this._layoutFunctions[name];this.layout[name]=this.getLayoutValue(name)}},_validate:function(validate,key,name,value,options){if(options&&options.validate===false){return false}return validateStyle.emitErrors(this,validate.call(validateStyle,{key:key,layerType:this.type,objectKey:name,value:value,styleSpec:styleSpec,style:{glyphs:true,sprite:true}}))}});function getDeclarationValue(declaration){return declaration.value}var Classes={background:require("./style_layer/background_style_layer"),circle:require("./style_layer/circle_style_layer"),fill:require("./style_layer/fill_style_layer"),line:require("./style_layer/line_style_layer"),raster:require("./style_layer/raster_style_layer"),symbol:require("./style_layer/symbol_style_layer")};StyleLayer.create=function(layer,refLayer){return new Classes[(refLayer||layer).type](layer,refLayer)}},{"../util/evented":128,"../util/util":137,"./parse_color":70,"./style_declaration":72,"./style_layer/background_style_layer":75,"./style_layer/circle_style_layer":76,"./style_layer/fill_style_layer":77,"./style_layer/line_style_layer":78,"./style_layer/raster_style_layer":79,"./style_layer/symbol_style_layer":80,"./style_spec":81,"./style_transition":82,"./validate_style":83}],75:[function(require,module,exports){"use strict";var util=require("../../util/util");var StyleLayer=require("../style_layer");function BackgroundStyleLayer(){StyleLayer.apply(this,arguments)}module.exports=BackgroundStyleLayer;BackgroundStyleLayer.prototype=util.inherit(StyleLayer,{})},{"../../util/util":137,"../style_layer":74}],76:[function(require,module,exports){"use strict";var util=require("../../util/util");var StyleLayer=require("../style_layer");function CircleStyleLayer(){StyleLayer.apply(this,arguments)}module.exports=CircleStyleLayer;CircleStyleLayer.prototype=util.inherit(StyleLayer,{})},{"../../util/util":137,"../style_layer":74}],77:[function(require,module,exports){"use strict";var util=require("../../util/util");var StyleLayer=require("../style_layer");function FillStyleLayer(){StyleLayer.apply(this,arguments)}FillStyleLayer.prototype=util.inherit(StyleLayer,{getPaintValue:function(name,globalProperties,featureProperties){if(name==="fill-outline-color"&&this.getPaintProperty("fill-outline-color")===undefined){return StyleLayer.prototype.getPaintValue.call(this,"fill-color",globalProperties,featureProperties)}else{return StyleLayer.prototype.getPaintValue.call(this,name,globalProperties,featureProperties)}},getPaintValueStopZoomLevels:function(name){if(name==="fill-outline-color"&&this.getPaintProperty("fill-outline-color")===undefined){return StyleLayer.prototype.getPaintValueStopZoomLevels.call(this,"fill-color")}else{return StyleLayer.prototype.getPaintValueStopZoomLevels.call(this,name)}},getPaintInterpolationT:function(name,zoom){if(name==="fill-outline-color"&&this.getPaintProperty("fill-outline-color")===undefined){return StyleLayer.prototype.getPaintInterpolationT.call(this,"fill-color",zoom)}else{return StyleLayer.prototype.getPaintInterpolationT.call(this,name,zoom)}},isPaintValueFeatureConstant:function(name){if(name==="fill-outline-color"&&this.getPaintProperty("fill-outline-color")===undefined){return StyleLayer.prototype.isPaintValueFeatureConstant.call(this,"fill-color")}else{return StyleLayer.prototype.isPaintValueFeatureConstant.call(this,name)}},isPaintValueZoomConstant:function(name){if(name==="fill-outline-color"&&this.getPaintProperty("fill-outline-color")===undefined){return StyleLayer.prototype.isPaintValueZoomConstant.call(this,"fill-color")}else{return StyleLayer.prototype.isPaintValueZoomConstant.call(this,name)}}});module.exports=FillStyleLayer},{"../../util/util":137,"../style_layer":74}],78:[function(require,module,exports){"use strict";var util=require("../../util/util");var StyleLayer=require("../style_layer");function LineStyleLayer(){StyleLayer.apply(this,arguments)}module.exports=LineStyleLayer;LineStyleLayer.prototype=util.inherit(StyleLayer,{getPaintValue:function(name,globalProperties,featureProperties){var value=StyleLayer.prototype.getPaintValue.apply(this,arguments);if(value&&name==="line-dasharray"){var flooredZoom=Math.floor(globalProperties.zoom);if(this._flooredZoom!==flooredZoom){this._flooredZoom=flooredZoom;this._flooredLineWidth=this.getPaintValue("line-width",globalProperties,featureProperties)}value.fromScale*=this._flooredLineWidth;value.toScale*=this._flooredLineWidth}return value}})},{"../../util/util":137,"../style_layer":74}],79:[function(require,module,exports){"use strict";var util=require("../../util/util");var StyleLayer=require("../style_layer");function RasterStyleLayer(){StyleLayer.apply(this,arguments)}module.exports=RasterStyleLayer;RasterStyleLayer.prototype=util.inherit(StyleLayer,{})},{"../../util/util":137,"../style_layer":74}],80:[function(require,module,exports){"use strict";var util=require("../../util/util");var StyleLayer=require("../style_layer");function SymbolStyleLayer(){StyleLayer.apply(this,arguments)}module.exports=SymbolStyleLayer;SymbolStyleLayer.prototype=util.inherit(StyleLayer,{getLayoutValue:function(name,globalProperties,featureProperties){var value=StyleLayer.prototype.getLayoutValue.apply(this,arguments);if(value!=="auto"){return value}switch(name){case"text-rotation-alignment":case"icon-rotation-alignment":return this.getLayoutValue("symbol-placement",globalProperties,featureProperties)==="line"?"map":"viewport";case"text-pitch-alignment":return this.getLayoutValue("text-rotation-alignment",globalProperties,featureProperties);default:return value}}})},{"../../util/util":137,"../style_layer":74}],81:[function(require,module,exports){"use strict";module.exports=require("mapbox-gl-style-spec/reference/latest.min")},{"mapbox-gl-style-spec/reference/latest.min":190
}],82:[function(require,module,exports){"use strict";var util=require("../util/util");var interpolate=require("../util/interpolate");module.exports=StyleTransition;function StyleTransition(reference,declaration,oldTransition,value){this.declaration=declaration;this.startTime=this.endTime=(new Date).getTime();if(reference.function==="piecewise-constant"&&reference.transition){this.interp=interpZoomTransitioned}else{this.interp=interpolate[reference.type]}this.oldTransition=oldTransition;this.duration=value.duration||0;this.delay=value.delay||0;if(!this.instant()){this.endTime=this.startTime+this.duration+this.delay;this.ease=util.easeCubicInOut}if(oldTransition&&oldTransition.endTime<=this.startTime){delete oldTransition.oldTransition}}StyleTransition.prototype.instant=function(){return!this.oldTransition||!this.interp||this.duration===0&&this.delay===0};StyleTransition.prototype.calculate=function(globalProperties,featureProperties){var value=this.declaration.calculate(util.extend({},globalProperties,{duration:this.duration}),featureProperties);if(this.instant())return value;var t=globalProperties.time||Date.now();if(t<this.endTime){var oldValue=this.oldTransition.calculate(util.extend({},globalProperties,{time:this.startTime}),featureProperties);var eased=this.ease((t-this.startTime-this.delay)/this.duration);value=this.interp(oldValue,value,eased)}return value};function interpZoomTransitioned(from,to,t){if((from&&from.to)===undefined||(to&&to.to)===undefined){return undefined}else{return{from:from.to,fromScale:from.toScale,to:to.to,toScale:to.toScale,t:t}}}},{"../util/interpolate":131,"../util/util":137}],83:[function(require,module,exports){"use strict";module.exports=require("mapbox-gl-style-spec/lib/validate_style.min");module.exports.emitErrors=function(emitter,errors){if(errors&&errors.length){for(var i=0;i<errors.length;i++){emitter.fire("error",{error:new Error(errors[i].message)})}return true}else{return false}}},{"mapbox-gl-style-spec/lib/validate_style.min":189}],84:[function(require,module,exports){"use strict";var Point=require("point-geometry");module.exports=Anchor;function Anchor(x,y,angle,segment){this.x=x;this.y=y;this.angle=angle;if(segment!==undefined){this.segment=segment}}Anchor.prototype=Object.create(Point.prototype);Anchor.prototype.clone=function(){return new Anchor(this.x,this.y,this.angle,this.segment)}},{"point-geometry":196}],85:[function(require,module,exports){"use strict";module.exports=checkMaxAngle;function checkMaxAngle(line,anchor,labelLength,windowSize,maxAngle){if(anchor.segment===undefined)return true;var p=anchor;var index=anchor.segment+1;var anchorDistance=0;while(anchorDistance>-labelLength/2){index--;if(index<0)return false;anchorDistance-=line[index].dist(p);p=line[index]}anchorDistance+=line[index].dist(line[index+1]);index++;var recentCorners=[];var recentAngleDelta=0;while(anchorDistance<labelLength/2){var prev=line[index-1];var current=line[index];var next=line[index+1];if(!next)return false;var angleDelta=prev.angleTo(current)-current.angleTo(next);angleDelta=Math.abs((angleDelta+3*Math.PI)%(Math.PI*2)-Math.PI);recentCorners.push({distance:anchorDistance,angleDelta:angleDelta});recentAngleDelta+=angleDelta;while(anchorDistance-recentCorners[0].distance>windowSize){recentAngleDelta-=recentCorners.shift().angleDelta}if(recentAngleDelta>maxAngle)return false;index++;anchorDistance+=current.dist(next)}return true}},{}],86:[function(require,module,exports){"use strict";var Point=require("point-geometry");module.exports=clipLine;function clipLine(lines,x1,y1,x2,y2){var clippedLines=[];for(var l=0;l<lines.length;l++){var line=lines[l];var clippedLine;for(var i=0;i<line.length-1;i++){var p0=line[i];var p1=line[i+1];if(p0.x<x1&&p1.x<x1){continue}else if(p0.x<x1){p0=new Point(x1,p0.y+(p1.y-p0.y)*((x1-p0.x)/(p1.x-p0.x)))._round()}else if(p1.x<x1){p1=new Point(x1,p0.y+(p1.y-p0.y)*((x1-p0.x)/(p1.x-p0.x)))._round()}if(p0.y<y1&&p1.y<y1){continue}else if(p0.y<y1){p0=new Point(p0.x+(p1.x-p0.x)*((y1-p0.y)/(p1.y-p0.y)),y1)._round()}else if(p1.y<y1){p1=new Point(p0.x+(p1.x-p0.x)*((y1-p0.y)/(p1.y-p0.y)),y1)._round()}if(p0.x>=x2&&p1.x>=x2){continue}else if(p0.x>=x2){p0=new Point(x2,p0.y+(p1.y-p0.y)*((x2-p0.x)/(p1.x-p0.x)))._round()}else if(p1.x>=x2){p1=new Point(x2,p0.y+(p1.y-p0.y)*((x2-p0.x)/(p1.x-p0.x)))._round()}if(p0.y>=y2&&p1.y>=y2){continue}else if(p0.y>=y2){p0=new Point(p0.x+(p1.x-p0.x)*((y2-p0.y)/(p1.y-p0.y)),y2)._round()}else if(p1.y>=y2){p1=new Point(p0.x+(p1.x-p0.x)*((y2-p0.y)/(p1.y-p0.y)),y2)._round()}if(!clippedLine||!p0.equals(clippedLine[clippedLine.length-1])){clippedLine=[p0];clippedLines.push(clippedLine)}clippedLine.push(p1)}}return clippedLines}},{"point-geometry":196}],87:[function(require,module,exports){"use strict";var StructArrayType=require("../util/struct_array");var util=require("../util/util");var Point=require("point-geometry");var CollisionBoxArray=module.exports=new StructArrayType({members:[{type:"Int16",name:"anchorPointX"},{type:"Int16",name:"anchorPointY"},{type:"Int16",name:"x1"},{type:"Int16",name:"y1"},{type:"Int16",name:"x2"},{type:"Int16",name:"y2"},{type:"Float32",name:"maxScale"},{type:"Uint32",name:"featureIndex"},{type:"Uint16",name:"sourceLayerIndex"},{type:"Uint16",name:"bucketIndex"},{type:"Int16",name:"bbox0"},{type:"Int16",name:"bbox1"},{type:"Int16",name:"bbox2"},{type:"Int16",name:"bbox3"},{type:"Float32",name:"placementScale"}]});util.extendAll(CollisionBoxArray.prototype.StructType.prototype,{get anchorPoint(){return new Point(this.anchorPointX,this.anchorPointY)}})},{"../util/struct_array":135,"../util/util":137,"point-geometry":196}],88:[function(require,module,exports){"use strict";module.exports=CollisionFeature;function CollisionFeature(collisionBoxArray,line,anchor,featureIndex,sourceLayerIndex,bucketIndex,shaped,boxScale,padding,alignLine,straight){var y1=shaped.top*boxScale-padding;var y2=shaped.bottom*boxScale+padding;var x1=shaped.left*boxScale-padding;var x2=shaped.right*boxScale+padding;this.boxStartIndex=collisionBoxArray.length;if(alignLine){var height=y2-y1;var length=x2-x1;if(height>0){height=Math.max(10*boxScale,height);if(straight){var vector=line[anchor.segment+1].sub(line[anchor.segment])._unit()._mult(length);var straightLine=[anchor.sub(vector),anchor.add(vector)];this._addLineCollisionBoxes(collisionBoxArray,straightLine,anchor,0,length,height,featureIndex,sourceLayerIndex,bucketIndex)}else{this._addLineCollisionBoxes(collisionBoxArray,line,anchor,anchor.segment,length,height,featureIndex,sourceLayerIndex,bucketIndex)}}}else{collisionBoxArray.emplaceBack(anchor.x,anchor.y,x1,y1,x2,y2,Infinity,featureIndex,sourceLayerIndex,bucketIndex,0,0,0,0,0)}this.boxEndIndex=collisionBoxArray.length}CollisionFeature.prototype._addLineCollisionBoxes=function(collisionBoxArray,line,anchor,segment,labelLength,boxSize,featureIndex,sourceLayerIndex,bucketIndex){var step=boxSize/2;var nBoxes=Math.floor(labelLength/step);var firstBoxOffset=-boxSize/2;var bboxes=this.boxes;var p=anchor;var index=segment+1;var anchorDistance=firstBoxOffset;do{index--;if(index<0)return bboxes;anchorDistance-=line[index].dist(p);p=line[index]}while(anchorDistance>-labelLength/2);var segmentLength=line[index].dist(line[index+1]);for(var i=0;i<nBoxes;i++){var boxDistanceToAnchor=-labelLength/2+i*step;while(anchorDistance+segmentLength<boxDistanceToAnchor){anchorDistance+=segmentLength;index++;if(index+1>=line.length)return bboxes;segmentLength=line[index].dist(line[index+1])}var segmentBoxDistance=boxDistanceToAnchor-anchorDistance;var p0=line[index];var p1=line[index+1];var boxAnchorPoint=p1.sub(p0)._unit()._mult(segmentBoxDistance)._add(p0)._round();var distanceToInnerEdge=Math.max(Math.abs(boxDistanceToAnchor-firstBoxOffset)-step/2,0);var maxScale=labelLength/2/distanceToInnerEdge;collisionBoxArray.emplaceBack(boxAnchorPoint.x,boxAnchorPoint.y,-boxSize/2,-boxSize/2,boxSize/2,boxSize/2,maxScale,featureIndex,sourceLayerIndex,bucketIndex,0,0,0,0,0)}return bboxes}},{}],89:[function(require,module,exports){"use strict";var Point=require("point-geometry");var EXTENT=require("../data/bucket").EXTENT;var Grid=require("grid-index");module.exports=CollisionTile;function CollisionTile(angle,pitch,collisionBoxArray){if(typeof angle==="object"){var serialized=angle;collisionBoxArray=pitch;angle=serialized.angle;pitch=serialized.pitch;this.grid=new Grid(serialized.grid);this.ignoredGrid=new Grid(serialized.ignoredGrid)}else{this.grid=new Grid(EXTENT,12,6);this.ignoredGrid=new Grid(EXTENT,12,0)}this.angle=angle;this.pitch=pitch;var sin=Math.sin(angle),cos=Math.cos(angle);this.rotationMatrix=[cos,-sin,sin,cos];this.reverseRotationMatrix=[cos,sin,-sin,cos];this.yStretch=1/Math.cos(pitch/180*Math.PI);this.yStretch=Math.pow(this.yStretch,1.3);this.collisionBoxArray=collisionBoxArray;if(collisionBoxArray.length===0){collisionBoxArray.emplaceBack();var maxInt16=32767;collisionBoxArray.emplaceBack(0,0,0,-maxInt16,0,maxInt16,maxInt16,0,0,0,0,0,0,0,0,0);collisionBoxArray.emplaceBack(EXTENT,0,0,-maxInt16,0,maxInt16,maxInt16,0,0,0,0,0,0,0,0,0);collisionBoxArray.emplaceBack(0,0,-maxInt16,0,maxInt16,0,maxInt16,0,0,0,0,0,0,0,0,0);collisionBoxArray.emplaceBack(0,EXTENT,-maxInt16,0,maxInt16,0,maxInt16,0,0,0,0,0,0,0,0,0)}this.tempCollisionBox=collisionBoxArray.get(0);this.edges=[collisionBoxArray.get(1),collisionBoxArray.get(2),collisionBoxArray.get(3),collisionBoxArray.get(4)]}CollisionTile.prototype.serialize=function(){var data={angle:this.angle,pitch:this.pitch,grid:this.grid.toArrayBuffer(),ignoredGrid:this.ignoredGrid.toArrayBuffer()};return{data:data,transferables:[data.grid,data.ignoredGrid]}};CollisionTile.prototype.minScale=.25;CollisionTile.prototype.maxScale=2;CollisionTile.prototype.placeCollisionFeature=function(collisionFeature,allowOverlap,avoidEdges){var collisionBoxArray=this.collisionBoxArray;var minPlacementScale=this.minScale;var rotationMatrix=this.rotationMatrix;var yStretch=this.yStretch;for(var b=collisionFeature.boxStartIndex;b<collisionFeature.boxEndIndex;b++){var box=collisionBoxArray.get(b);var anchorPoint=box.anchorPoint._matMult(rotationMatrix);var x=anchorPoint.x;var y=anchorPoint.y;var x1=x+box.x1;var y1=y+box.y1*yStretch;var x2=x+box.x2;var y2=y+box.y2*yStretch;box.bbox0=x1;box.bbox1=y1;box.bbox2=x2;box.bbox3=y2;if(!allowOverlap){var blockingBoxes=this.grid.query(x1,y1,x2,y2);for(var i=0;i<blockingBoxes.length;i++){var blocking=collisionBoxArray.get(blockingBoxes[i]);var blockingAnchorPoint=blocking.anchorPoint._matMult(rotationMatrix);minPlacementScale=this.getPlacementScale(minPlacementScale,anchorPoint,box,blockingAnchorPoint,blocking);if(minPlacementScale>=this.maxScale){return minPlacementScale}}}if(avoidEdges){var rotatedCollisionBox;if(this.angle){var reverseRotationMatrix=this.reverseRotationMatrix;var tl=new Point(box.x1,box.y1).matMult(reverseRotationMatrix);var tr=new Point(box.x2,box.y1).matMult(reverseRotationMatrix);var bl=new Point(box.x1,box.y2).matMult(reverseRotationMatrix);var br=new Point(box.x2,box.y2).matMult(reverseRotationMatrix);rotatedCollisionBox=this.tempCollisionBox;rotatedCollisionBox.anchorPointX=box.anchorPoint.x;rotatedCollisionBox.anchorPointY=box.anchorPoint.y;rotatedCollisionBox.x1=Math.min(tl.x,tr.x,bl.x,br.x);rotatedCollisionBox.y1=Math.min(tl.y,tr.x,bl.x,br.x);rotatedCollisionBox.x2=Math.max(tl.x,tr.x,bl.x,br.x);rotatedCollisionBox.y2=Math.max(tl.y,tr.x,bl.x,br.x);rotatedCollisionBox.maxScale=box.maxScale}else{rotatedCollisionBox=box}for(var k=0;k<this.edges.length;k++){var edgeBox=this.edges[k];minPlacementScale=this.getPlacementScale(minPlacementScale,box.anchorPoint,rotatedCollisionBox,edgeBox.anchorPoint,edgeBox);if(minPlacementScale>=this.maxScale){return minPlacementScale}}}}return minPlacementScale};CollisionTile.prototype.queryRenderedSymbols=function(minX,minY,maxX,maxY,scale){var sourceLayerFeatures={};var result=[];var collisionBoxArray=this.collisionBoxArray;var rotationMatrix=this.rotationMatrix;var anchorPoint=new Point(minX,minY)._matMult(rotationMatrix);var queryBox=this.tempCollisionBox;queryBox.anchorX=anchorPoint.x;queryBox.anchorY=anchorPoint.y;queryBox.x1=0;queryBox.y1=0;queryBox.x2=maxX-minX;queryBox.y2=maxY-minY;queryBox.maxScale=scale;scale=queryBox.maxScale;var searchBox=[anchorPoint.x+queryBox.x1/scale,anchorPoint.y+queryBox.y1/scale*this.yStretch,anchorPoint.x+queryBox.x2/scale,anchorPoint.y+queryBox.y2/scale*this.yStretch];var blockingBoxKeys=this.grid.query(searchBox[0],searchBox[1],searchBox[2],searchBox[3]);var blockingBoxKeys2=this.ignoredGrid.query(searchBox[0],searchBox[1],searchBox[2],searchBox[3]);for(var k=0;k<blockingBoxKeys2.length;k++){blockingBoxKeys.push(blockingBoxKeys2[k])}for(var i=0;i<blockingBoxKeys.length;i++){var blocking=collisionBoxArray.get(blockingBoxKeys[i]);var sourceLayer=blocking.sourceLayerIndex;var featureIndex=blocking.featureIndex;if(sourceLayerFeatures[sourceLayer]===undefined){sourceLayerFeatures[sourceLayer]={}}if(!sourceLayerFeatures[sourceLayer][featureIndex]){var blockingAnchorPoint=blocking.anchorPoint.matMult(rotationMatrix);var minPlacementScale=this.getPlacementScale(this.minScale,anchorPoint,queryBox,blockingAnchorPoint,blocking);if(minPlacementScale>=scale){sourceLayerFeatures[sourceLayer][featureIndex]=true;result.push(blockingBoxKeys[i])}}}return result};CollisionTile.prototype.getPlacementScale=function(minPlacementScale,anchorPoint,box,blockingAnchorPoint,blocking){var anchorDiffX=anchorPoint.x-blockingAnchorPoint.x;var anchorDiffY=anchorPoint.y-blockingAnchorPoint.y;var s1=(blocking.x1-box.x2)/anchorDiffX;var s2=(blocking.x2-box.x1)/anchorDiffX;var s3=(blocking.y1-box.y2)*this.yStretch/anchorDiffY;var s4=(blocking.y2-box.y1)*this.yStretch/anchorDiffY;if(isNaN(s1)||isNaN(s2))s1=s2=1;if(isNaN(s3)||isNaN(s4))s3=s4=1;var collisionFreeScale=Math.min(Math.max(s1,s2),Math.max(s3,s4));var blockingMaxScale=blocking.maxScale;var boxMaxScale=box.maxScale;if(collisionFreeScale>blockingMaxScale){collisionFreeScale=blockingMaxScale}if(collisionFreeScale>boxMaxScale){collisionFreeScale=boxMaxScale}if(collisionFreeScale>minPlacementScale&&collisionFreeScale>=blocking.placementScale){minPlacementScale=collisionFreeScale}return minPlacementScale};CollisionTile.prototype.insertCollisionFeature=function(collisionFeature,minPlacementScale,ignorePlacement){var grid=ignorePlacement?this.ignoredGrid:this.grid;var collisionBoxArray=this.collisionBoxArray;for(var k=collisionFeature.boxStartIndex;k<collisionFeature.boxEndIndex;k++){var box=collisionBoxArray.get(k);box.placementScale=minPlacementScale;if(minPlacementScale<this.maxScale){grid.insert(k,box.bbox0,box.bbox1,box.bbox2,box.bbox3)}}}},{"../data/bucket":17,"grid-index":164,"point-geometry":196}],90:[function(require,module,exports){"use strict";var interpolate=require("../util/interpolate");var Anchor=require("../symbol/anchor");var checkMaxAngle=require("./check_max_angle");module.exports=getAnchors;function getAnchors(line,spacing,maxAngle,shapedText,shapedIcon,glyphSize,boxScale,overscaling,tileExtent){var angleWindowSize=shapedText?3/5*glyphSize*boxScale:0;var labelLength=Math.max(shapedText?shapedText.right-shapedText.left:0,shapedIcon?shapedIcon.right-shapedIcon.left:0);var isLineContinued=line[0].x===0||line[0].x===tileExtent||line[0].y===0||line[0].y===tileExtent;if(spacing-labelLength*boxScale<spacing/4){spacing=labelLength*boxScale+spacing/4}var fixedExtraOffset=glyphSize*2;var offset=!isLineContinued?(labelLength/2+fixedExtraOffset)*boxScale*overscaling%spacing:spacing/2*overscaling%spacing;return resample(line,offset,spacing,angleWindowSize,maxAngle,labelLength*boxScale,isLineContinued,false,tileExtent)}function resample(line,offset,spacing,angleWindowSize,maxAngle,labelLength,isLineContinued,placeAtMiddle,tileExtent){var halfLabelLength=labelLength/2;var lineLength=0;for(var k=0;k<line.length-1;k++){lineLength+=line[k].dist(line[k+1])}var distance=0,markedDistance=offset-spacing;var anchors=[];for(var i=0;i<line.length-1;i++){var a=line[i],b=line[i+1];var segmentDist=a.dist(b),angle=b.angleTo(a);while(markedDistance+spacing<distance+segmentDist){markedDistance+=spacing;var t=(markedDistance-distance)/segmentDist,x=interpolate(a.x,b.x,t),y=interpolate(a.y,b.y,t);if(x>=0&&x<tileExtent&&y>=0&&y<tileExtent&&markedDistance-halfLabelLength>=0&&markedDistance+halfLabelLength<=lineLength){var anchor=new Anchor(x,y,angle,i)._round();if(!angleWindowSize||checkMaxAngle(line,anchor,labelLength,angleWindowSize,maxAngle)){anchors.push(anchor)}}}distance+=segmentDist}if(!placeAtMiddle&&!anchors.length&&!isLineContinued){anchors=resample(line,distance/2,spacing,angleWindowSize,maxAngle,labelLength,isLineContinued,true,tileExtent)}return anchors}},{"../symbol/anchor":84,"../util/interpolate":131,"./check_max_angle":85}],91:[function(require,module,exports){"use strict";var ShelfPack=require("shelf-pack");var util=require("../util/util");var SIZE_GROWTH_RATE=4;var DEFAULT_SIZE=128;var MAX_SIZE=2048;module.exports=GlyphAtlas;function GlyphAtlas(){this.width=DEFAULT_SIZE;this.height=DEFAULT_SIZE;this.bin=new ShelfPack(this.width,this.height);this.index={};this.ids={};this.data=new Uint8Array(this.width*this.height)}GlyphAtlas.prototype.getGlyphs=function(){var glyphs={},split,name,id;for(var key in this.ids){split=key.split("#");name=split[0];id=split[1];if(!glyphs[name])glyphs[name]=[];glyphs[name].push(id)}return glyphs};GlyphAtlas.prototype.getRects=function(){var rects={},split,name,id;for(var key in this.ids){split=key.split("#");name=split[0];id=split[1];if(!rects[name])rects[name]={};rects[name][id]=this.index[key]}return rects};GlyphAtlas.prototype.addGlyph=function(id,name,glyph,buffer){if(!glyph)return null;var key=name+"#"+glyph.id;if(this.index[key]){if(this.ids[key].indexOf(id)<0){this.ids[key].push(id)}return this.index[key]}if(!glyph.bitmap){return null}var bufferedWidth=glyph.width+buffer*2;var bufferedHeight=glyph.height+buffer*2;var padding=1;var packWidth=bufferedWidth+2*padding;var packHeight=bufferedHeight+2*padding;packWidth+=4-packWidth%4;packHeight+=4-packHeight%4;var rect=this.bin.packOne(packWidth,packHeight);if(!rect){this.resize();rect=this.bin.packOne(packWidth,packHeight)}if(!rect){util.warnOnce("glyph bitmap overflow");return null}this.index[key]=rect;this.ids[key]=[id];var target=this.data;var source=glyph.bitmap;for(var y=0;y<bufferedHeight;y++){var y1=this.width*(rect.y+y+padding)+rect.x+padding;var y2=bufferedWidth*y;for(var x=0;x<bufferedWidth;x++){target[y1+x]=source[y2+x]}}this.dirty=true;return rect};GlyphAtlas.prototype.resize=function(){var prevWidth=this.width;var prevHeight=this.height;if(prevWidth>=MAX_SIZE||prevHeight>=MAX_SIZE)return;if(this.texture){if(this.gl){this.gl.deleteTexture(this.texture)}this.texture=null}this.width*=SIZE_GROWTH_RATE;this.height*=SIZE_GROWTH_RATE;this.bin.resize(this.width,this.height);var buf=new ArrayBuffer(this.width*this.height);for(var i=0;i<prevHeight;i++){var src=new Uint8Array(this.data.buffer,prevHeight*i,prevWidth);var dst=new Uint8Array(buf,prevHeight*i*SIZE_GROWTH_RATE,prevWidth);dst.set(src)}this.data=new Uint8Array(buf)};GlyphAtlas.prototype.bind=function(gl){this.gl=gl;if(!this.texture){this.texture=gl.createTexture();gl.bindTexture(gl.TEXTURE_2D,this.texture);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,gl.LINEAR);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,gl.LINEAR);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.CLAMP_TO_EDGE);gl.texImage2D(gl.TEXTURE_2D,0,gl.ALPHA,this.width,this.height,0,gl.ALPHA,gl.UNSIGNED_BYTE,null)}else{gl.bindTexture(gl.TEXTURE_2D,this.texture)}};GlyphAtlas.prototype.updateTexture=function(gl){this.bind(gl);if(this.dirty){gl.texSubImage2D(gl.TEXTURE_2D,0,0,0,this.width,this.height,gl.ALPHA,gl.UNSIGNED_BYTE,this.data);this.dirty=false}}},{"../util/util":137,"shelf-pack":198}],92:[function(require,module,exports){"use strict";var normalizeURL=require("../util/mapbox").normalizeGlyphsURL;var ajax=require("../util/ajax");var Glyphs=require("../util/glyphs");var GlyphAtlas=require("../symbol/glyph_atlas");var Protobuf=require("pbf");module.exports=GlyphSource;function GlyphSource(url){this.url=url&&normalizeURL(url);this.atlases={};this.stacks={};this.loading={}}GlyphSource.prototype.getSimpleGlyphs=function(fontstack,glyphIDs,uid,callback){if(this.stacks[fontstack]===undefined){this.stacks[fontstack]={}}if(this.atlases[fontstack]===undefined){this.atlases[fontstack]=new GlyphAtlas}var glyphs={};var stack=this.stacks[fontstack];var atlas=this.atlases[fontstack];var buffer=3;var missing={};var remaining=0;var range;for(var i=0;i<glyphIDs.length;i++){var glyphID=glyphIDs[i];range=Math.floor(glyphID/256);if(stack[range]){var glyph=stack[range].glyphs[glyphID];var rect=atlas.addGlyph(uid,fontstack,glyph,buffer);if(glyph)glyphs[glyphID]=new SimpleGlyph(glyph,rect,buffer)}else{if(missing[range]===undefined){missing[range]=[];remaining++}missing[range].push(glyphID)}}if(!remaining)callback(undefined,glyphs,fontstack);var onRangeLoaded=function(err,range,data){if(!err){var stack=this.stacks[fontstack][range]=data.stacks[0];for(var i=0;i<missing[range].length;i++){var glyphID=missing[range][i];var glyph=stack.glyphs[glyphID];var rect=atlas.addGlyph(uid,fontstack,glyph,buffer);if(glyph)glyphs[glyphID]=new SimpleGlyph(glyph,rect,buffer)}}remaining--;if(!remaining)callback(undefined,glyphs,fontstack)}.bind(this);for(var r in missing){this.loadRange(fontstack,r,onRangeLoaded)}};function SimpleGlyph(glyph,rect,buffer){var padding=1;this.advance=glyph.advance;this.left=glyph.left-buffer-padding;this.top=glyph.top+buffer+padding;this.rect=rect}GlyphSource.prototype.loadRange=function(fontstack,range,callback){if(range*256>65535)return callback("glyphs > 65535 not supported");if(this.loading[fontstack]===undefined){this.loading[fontstack]={}}var loading=this.loading[fontstack];if(loading[range]){loading[range].push(callback)}else{loading[range]=[callback];var rangeName=range*256+"-"+(range*256+255);var url=glyphUrl(fontstack,rangeName,this.url);ajax.getArrayBuffer(url,function(err,data){var glyphs=!err&&new Glyphs(new Protobuf(data));for(var i=0;i<loading[range].length;i++){loading[range][i](err,range,glyphs)}delete loading[range]})}};GlyphSource.prototype.getGlyphAtlas=function(fontstack){return this.atlases[fontstack]};function glyphUrl(fontstack,range,url,subdomains){subdomains=subdomains||"abc";return url.replace("{s}",subdomains[fontstack.length%subdomains.length]).replace("{fontstack}",fontstack).replace("{range}",range)}},{"../symbol/glyph_atlas":91,"../util/ajax":119,"../util/glyphs":130,"../util/mapbox":134,pbf:194}],93:[function(require,module,exports){"use strict";module.exports=function(features,textFeatures,geometries){var leftIndex={},rightIndex={},mergedFeatures=[],mergedGeom=[],mergedTexts=[],mergedIndex=0,k;function add(k){mergedFeatures.push(features[k]);mergedGeom.push(geometries[k]);mergedTexts.push(textFeatures[k]);mergedIndex++}function mergeFromRight(leftKey,rightKey,geom){var i=rightIndex[leftKey];delete rightIndex[leftKey];rightIndex[rightKey]=i;mergedGeom[i][0].pop();mergedGeom[i][0]=mergedGeom[i][0].concat(geom[0]);return i}function mergeFromLeft(leftKey,rightKey,geom){var i=leftIndex[rightKey];delete leftIndex[rightKey];leftIndex[leftKey]=i;mergedGeom[i][0].shift();mergedGeom[i][0]=geom[0].concat(mergedGeom[i][0]);return i}function getKey(text,geom,onRight){var point=onRight?geom[0][geom[0].length-1]:geom[0][0];return text+":"+point.x+":"+point.y}for(k=0;k<features.length;k++){var geom=geometries[k],text=textFeatures[k];if(!text){add(k);continue}var leftKey=getKey(text,geom),rightKey=getKey(text,geom,true);if(leftKey in rightIndex&&rightKey in leftIndex&&rightIndex[leftKey]!==leftIndex[rightKey]){var j=mergeFromLeft(leftKey,rightKey,geom);var i=mergeFromRight(leftKey,rightKey,mergedGeom[j]);delete leftIndex[leftKey];delete rightIndex[rightKey];rightIndex[getKey(text,mergedGeom[i],true)]=i;mergedGeom[j]=null}else if(leftKey in rightIndex){mergeFromRight(leftKey,rightKey,geom)}else if(rightKey in leftIndex){mergeFromLeft(leftKey,rightKey,geom)}else{add(k);leftIndex[leftKey]=mergedIndex-1;rightIndex[rightKey]=mergedIndex-1}}return{features:mergedFeatures,textFeatures:mergedTexts,geometries:mergedGeom}}},{}],94:[function(require,module,exports){"use strict";var Point=require("point-geometry");module.exports={getIconQuads:getIconQuads,getGlyphQuads:getGlyphQuads,SymbolQuad:SymbolQuad};var minScale=.5;function SymbolQuad(anchorPoint,tl,tr,bl,br,tex,anchorAngle,glyphAngle,minScale,maxScale){this.anchorPoint=anchorPoint;this.tl=tl;this.tr=tr;this.bl=bl;this.br=br;this.tex=tex;this.anchorAngle=anchorAngle;this.glyphAngle=glyphAngle;this.minScale=minScale;this.maxScale=maxScale}function getIconQuads(anchor,shapedIcon,boxScale,line,layer,alongLine,shapedText,globalProperties,featureProperties){var rect=shapedIcon.image.rect;var layout=layer.layout;var border=1;var left=shapedIcon.left-border;var right=left+rect.w/shapedIcon.image.pixelRatio;var top=shapedIcon.top-border;var bottom=top+rect.h/shapedIcon.image.pixelRatio;var tl,tr,br,bl;if(layout["icon-text-fit"]!=="none"&&shapedText){var iconWidth=right-left,iconHeight=bottom-top,size=layout["text-size"]/24,textLeft=shapedText.left*size,textRight=shapedText.right*size,textTop=shapedText.top*size,textBottom=shapedText.bottom*size,textWidth=textRight-textLeft,textHeight=textBottom-textTop,padT=layout["icon-text-fit-padding"][0],padR=layout["icon-text-fit-padding"][1],padB=layout["icon-text-fit-padding"][2],padL=layout["icon-text-fit-padding"][3],offsetY=layout["icon-text-fit"]==="width"?(textHeight-iconHeight)*.5:0,offsetX=layout["icon-text-fit"]==="height"?(textWidth-iconWidth)*.5:0,width=layout["icon-text-fit"]==="width"||layout["icon-text-fit"]==="both"?textWidth:iconWidth,height=layout["icon-text-fit"]==="height"||layout["icon-text-fit"]==="both"?textHeight:iconHeight;tl=new Point(textLeft+offsetX-padL,textTop+offsetY-padT);tr=new Point(textLeft+offsetX+padR+width,textTop+offsetY-padT);br=new Point(textLeft+offsetX+padR+width,textTop+offsetY+padB+height);bl=new Point(textLeft+offsetX-padL,textTop+offsetY+padB+height)}else{tl=new Point(left,top);tr=new Point(right,top);br=new Point(right,bottom);bl=new Point(left,bottom)}var angle=layer.getLayoutValue("icon-rotate",globalProperties,featureProperties)*Math.PI/180;if(alongLine){var prev=line[anchor.segment];if(anchor.y===prev.y&&anchor.x===prev.x&&anchor.segment+1<line.length){var next=line[anchor.segment+1];angle+=Math.atan2(anchor.y-next.y,anchor.x-next.x)+Math.PI}else{angle+=Math.atan2(anchor.y-prev.y,anchor.x-prev.x)}}if(angle){var sin=Math.sin(angle),cos=Math.cos(angle),matrix=[cos,-sin,sin,cos];tl=tl.matMult(matrix);tr=tr.matMult(matrix);bl=bl.matMult(matrix);br=br.matMult(matrix)}return[new SymbolQuad(new Point(anchor.x,anchor.y),tl,tr,bl,br,shapedIcon.image.rect,0,0,minScale,Infinity)]}function getGlyphQuads(anchor,shaping,boxScale,line,layer,alongLine){var textRotate=layer.layout["text-rotate"]*Math.PI/180;var keepUpright=layer.layout["text-keep-upright"];var positionedGlyphs=shaping.positionedGlyphs;var quads=[];for(var k=0;k<positionedGlyphs.length;k++){var positionedGlyph=positionedGlyphs[k];var glyph=positionedGlyph.glyph;if(!glyph)continue;var rect=glyph.rect;if(!rect)continue;var centerX=(positionedGlyph.x+glyph.advance/2)*boxScale;var glyphInstances;var labelMinScale=minScale;if(alongLine){glyphInstances=[];labelMinScale=getSegmentGlyphs(glyphInstances,anchor,centerX,line,anchor.segment,true);if(keepUpright){labelMinScale=Math.min(labelMinScale,getSegmentGlyphs(glyphInstances,anchor,centerX,line,anchor.segment,false))}}else{glyphInstances=[{anchorPoint:new Point(anchor.x,anchor.y),offset:0,angle:0,maxScale:Infinity,minScale:minScale}]}var x1=positionedGlyph.x+glyph.left,y1=positionedGlyph.y-glyph.top,x2=x1+rect.w,y2=y1+rect.h,otl=new Point(x1,y1),otr=new Point(x2,y1),obl=new Point(x1,y2),obr=new Point(x2,y2);for(var i=0;i<glyphInstances.length;i++){var instance=glyphInstances[i],tl=otl,tr=otr,bl=obl,br=obr;if(textRotate){var sin=Math.sin(textRotate),cos=Math.cos(textRotate),matrix=[cos,-sin,sin,cos];tl=tl.matMult(matrix);tr=tr.matMult(matrix);bl=bl.matMult(matrix);br=br.matMult(matrix)}var glyphMinScale=Math.max(instance.minScale,labelMinScale);var anchorAngle=(anchor.angle+instance.offset+2*Math.PI)%(2*Math.PI);var glyphAngle=(instance.angle+instance.offset+2*Math.PI)%(2*Math.PI);quads.push(new SymbolQuad(instance.anchorPoint,tl,tr,bl,br,rect,anchorAngle,glyphAngle,glyphMinScale,instance.maxScale))}}return quads}function getSegmentGlyphs(glyphs,anchor,offset,line,segment,forward){var upsideDown=!forward;if(offset<0)forward=!forward;if(forward)segment++;var newAnchorPoint=new Point(anchor.x,anchor.y);var end=line[segment];var prevScale=Infinity;offset=Math.abs(offset);var placementScale=minScale;while(true){var distance=newAnchorPoint.dist(end);var scale=offset/distance;var angle=Math.atan2(end.y-newAnchorPoint.y,end.x-newAnchorPoint.x);if(!forward)angle+=Math.PI;glyphs.push({anchorPoint:newAnchorPoint,offset:upsideDown?Math.PI:0,minScale:scale,maxScale:prevScale,angle:(angle+2*Math.PI)%(2*Math.PI)});if(scale<=placementScale)break;newAnchorPoint=end;while(newAnchorPoint.equals(end)){segment+=forward?1:-1;end=line[segment];if(!end){return scale}}var unit=end.sub(newAnchorPoint)._unit();newAnchorPoint=newAnchorPoint.sub(unit._mult(distance));prevScale=scale}return placementScale}},{"point-geometry":196}],95:[function(require,module,exports){"use strict";var resolveTokens=require("../util/token");module.exports=resolveText;function resolveText(features,layoutProperties,codepoints){var textFeatures=[];for(var i=0,fl=features.length;i<fl;i++){var text=resolveTokens(features[i].properties,layoutProperties["text-field"]);if(!text){textFeatures[i]=null;continue}text=text.toString();var transform=layoutProperties["text-transform"];if(transform==="uppercase"){text=text.toLocaleUpperCase()}else if(transform==="lowercase"){text=text.toLocaleLowerCase()}for(var j=0;j<text.length;j++){codepoints[text.charCodeAt(j)]=true}textFeatures[i]=text}return textFeatures}},{"../util/token":136}],96:[function(require,module,exports){"use strict";module.exports={shapeText:shapeText,shapeIcon:shapeIcon};function PositionedGlyph(codePoint,x,y,glyph){this.codePoint=codePoint;this.x=x;this.y=y;this.glyph=glyph||null}function Shaping(positionedGlyphs,text,top,bottom,left,right){this.positionedGlyphs=positionedGlyphs;this.text=text;this.top=top;this.bottom=bottom;this.left=left;this.right=right}var newLine=10;function shapeText(text,glyphs,maxWidth,lineHeight,horizontalAlign,verticalAlign,justify,spacing,translate){var positionedGlyphs=[];var shaping=new Shaping(positionedGlyphs,text,translate[1],translate[1],translate[0],translate[0]);var yOffset=-17;var x=0;var y=yOffset;text=text.trim();for(var i=0;i<text.length;i++){var codePoint=text.charCodeAt(i);var glyph=glyphs[codePoint];if(!glyph&&codePoint!==newLine)continue;positionedGlyphs.push(new PositionedGlyph(codePoint,x,y,glyph));if(glyph){x+=glyph.advance+spacing}}if(!positionedGlyphs.length)return false;linewrap(shaping,glyphs,lineHeight,maxWidth,horizontalAlign,verticalAlign,justify,translate);return shaping}var invisible={32:true,8203:true};var breakable={32:true,38:true,43:true,45:true,47:true,173:true,183:true,8203:true,8208:true,8211:true};invisible[newLine]=breakable[newLine]=true;function linewrap(shaping,glyphs,lineHeight,maxWidth,horizontalAlign,verticalAlign,justify,translate){var lastSafeBreak=null;var lengthBeforeCurrentLine=0;var lineStartIndex=0;var line=0;var maxLineLength=0;var positionedGlyphs=shaping.positionedGlyphs;if(maxWidth){for(var i=0;i<positionedGlyphs.length;i++){var positionedGlyph=positionedGlyphs[i];positionedGlyph.x-=lengthBeforeCurrentLine;positionedGlyph.y+=lineHeight*line;if(lastSafeBreak!==null&&(positionedGlyph.x>maxWidth||positionedGlyphs[lastSafeBreak].codePoint===newLine)){var lineLength=positionedGlyphs[lastSafeBreak+1].x;
maxLineLength=Math.max(lineLength,maxLineLength);for(var k=lastSafeBreak+1;k<=i;k++){positionedGlyphs[k].y+=lineHeight;positionedGlyphs[k].x-=lineLength}if(justify){var lineEnd=lastSafeBreak;if(invisible[positionedGlyphs[lastSafeBreak].codePoint]){lineEnd--}justifyLine(positionedGlyphs,glyphs,lineStartIndex,lineEnd,justify)}lineStartIndex=lastSafeBreak+1;lastSafeBreak=null;lengthBeforeCurrentLine+=lineLength;line++}if(breakable[positionedGlyph.codePoint]){lastSafeBreak=i}}}var lastPositionedGlyph=positionedGlyphs[positionedGlyphs.length-1];var lastLineLength=lastPositionedGlyph.x+glyphs[lastPositionedGlyph.codePoint].advance;maxLineLength=Math.max(maxLineLength,lastLineLength);var height=(line+1)*lineHeight;justifyLine(positionedGlyphs,glyphs,lineStartIndex,positionedGlyphs.length-1,justify);align(positionedGlyphs,justify,horizontalAlign,verticalAlign,maxLineLength,lineHeight,line,translate);shaping.top+=-verticalAlign*height;shaping.bottom=shaping.top+height;shaping.left+=-horizontalAlign*maxLineLength;shaping.right=shaping.left+maxLineLength}function justifyLine(positionedGlyphs,glyphs,start,end,justify){var lastAdvance=glyphs[positionedGlyphs[end].codePoint].advance;var lineIndent=(positionedGlyphs[end].x+lastAdvance)*justify;for(var j=start;j<=end;j++){positionedGlyphs[j].x-=lineIndent}}function align(positionedGlyphs,justify,horizontalAlign,verticalAlign,maxLineLength,lineHeight,line,translate){var shiftX=(justify-horizontalAlign)*maxLineLength+translate[0];var shiftY=(-verticalAlign*(line+1)+.5)*lineHeight+translate[1];for(var j=0;j<positionedGlyphs.length;j++){positionedGlyphs[j].x+=shiftX;positionedGlyphs[j].y+=shiftY}}function shapeIcon(image,layout){if(!image||!image.rect)return null;var dx=layout["icon-offset"][0];var dy=layout["icon-offset"][1];var x1=dx-image.width/2;var x2=x1+image.width;var y1=dy-image.height/2;var y2=y1+image.height;return new PositionedIcon(image,y1,y2,x1,x2)}function PositionedIcon(image,top,bottom,left,right){this.image=image;this.top=top;this.bottom=bottom;this.left=left;this.right=right}},{}],97:[function(require,module,exports){"use strict";var ShelfPack=require("shelf-pack");var browser=require("../util/browser");var util=require("../util/util");module.exports=SpriteAtlas;function SpriteAtlas(width,height){this.width=width;this.height=height;this.bin=new ShelfPack(width,height);this.images={};this.data=false;this.texture=0;this.filter=0;this.pixelRatio=1;this.dirty=true}function copyBitmap(src,srcStride,srcX,srcY,dst,dstStride,dstX,dstY,width,height,wrap){var srcI=srcY*srcStride+srcX;var dstI=dstY*dstStride+dstX;var x,y;if(wrap){dstI-=dstStride;for(y=-1;y<=height;y++,srcI=((y+height)%height+srcY)*srcStride+srcX,dstI+=dstStride){for(x=-1;x<=width;x++){dst[dstI+x]=src[srcI+(x+width)%width]}}}else{for(y=0;y<height;y++,srcI+=srcStride,dstI+=dstStride){for(x=0;x<width;x++){dst[dstI+x]=src[srcI+x]}}}}SpriteAtlas.prototype.allocateImage=function(pixelWidth,pixelHeight){pixelWidth=pixelWidth/this.pixelRatio;pixelHeight=pixelHeight/this.pixelRatio;var padding=2;var packWidth=pixelWidth+padding+(4-(pixelWidth+padding)%4);var packHeight=pixelHeight+padding+(4-(pixelHeight+padding)%4);var rect=this.bin.packOne(packWidth,packHeight);if(!rect){util.warnOnce("SpriteAtlas out of space.");return null}return rect};SpriteAtlas.prototype.getImage=function(name,wrap){if(this.images[name]){return this.images[name]}if(!this.sprite){return null}var pos=this.sprite.getSpritePosition(name);if(!pos.width||!pos.height){return null}var rect=this.allocateImage(pos.width,pos.height);if(!rect){return null}var image=new AtlasImage(rect,pos.width/pos.pixelRatio,pos.height/pos.pixelRatio,pos.sdf,pos.pixelRatio/this.pixelRatio);this.images[name]=image;this.copy(rect,pos,wrap);return image};SpriteAtlas.prototype.getPosition=function(name,repeating){var image=this.getImage(name,repeating);var rect=image&&image.rect;if(!rect){return null}var width=image.width*image.pixelRatio;var height=image.height*image.pixelRatio;var padding=1;return{size:[image.width,image.height],tl:[(rect.x+padding)/this.width,(rect.y+padding)/this.height],br:[(rect.x+padding+width)/this.width,(rect.y+padding+height)/this.height]}};SpriteAtlas.prototype.allocate=function(){if(!this.data){var w=Math.floor(this.width*this.pixelRatio);var h=Math.floor(this.height*this.pixelRatio);this.data=new Uint32Array(w*h);for(var i=0;i<this.data.length;i++){this.data[i]=0}}};SpriteAtlas.prototype.copy=function(dst,src,wrap){if(!this.sprite.img.data)return;var srcImg=new Uint32Array(this.sprite.img.data.buffer);this.allocate();var dstImg=this.data;var padding=1;copyBitmap(srcImg,this.sprite.img.width,src.x,src.y,dstImg,this.width*this.pixelRatio,(dst.x+padding)*this.pixelRatio,(dst.y+padding)*this.pixelRatio,src.width,src.height,wrap);this.dirty=true};SpriteAtlas.prototype.setSprite=function(sprite){if(sprite){this.pixelRatio=browser.devicePixelRatio>1?2:1;if(this.canvas){this.canvas.width=this.width*this.pixelRatio;this.canvas.height=this.height*this.pixelRatio}}this.sprite=sprite};SpriteAtlas.prototype.addIcons=function(icons,callback){for(var i=0;i<icons.length;i++){this.getImage(icons[i])}callback(null,this.images)};SpriteAtlas.prototype.bind=function(gl,linear){var first=false;if(!this.texture){this.texture=gl.createTexture();gl.bindTexture(gl.TEXTURE_2D,this.texture);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_S,gl.CLAMP_TO_EDGE);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_WRAP_T,gl.CLAMP_TO_EDGE);first=true}else{gl.bindTexture(gl.TEXTURE_2D,this.texture)}var filterVal=linear?gl.LINEAR:gl.NEAREST;if(filterVal!==this.filter){gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MIN_FILTER,filterVal);gl.texParameteri(gl.TEXTURE_2D,gl.TEXTURE_MAG_FILTER,filterVal);this.filter=filterVal}if(this.dirty){this.allocate();if(first){gl.texImage2D(gl.TEXTURE_2D,0,gl.RGBA,this.width*this.pixelRatio,this.height*this.pixelRatio,0,gl.RGBA,gl.UNSIGNED_BYTE,new Uint8Array(this.data.buffer))}else{gl.texSubImage2D(gl.TEXTURE_2D,0,0,0,this.width*this.pixelRatio,this.height*this.pixelRatio,gl.RGBA,gl.UNSIGNED_BYTE,new Uint8Array(this.data.buffer))}this.dirty=false}};function AtlasImage(rect,width,height,sdf,pixelRatio){this.rect=rect;this.width=width;this.height=height;this.sdf=sdf;this.pixelRatio=pixelRatio}},{"../util/browser":120,"../util/util":137,"shelf-pack":198}],98:[function(require,module,exports){"use strict";var StructArrayType=require("../util/struct_array");var util=require("../util/util");var Point=require("point-geometry");var SymbolInstancesArray=module.exports=new StructArrayType({members:[{type:"Uint16",name:"textBoxStartIndex"},{type:"Uint16",name:"textBoxEndIndex"},{type:"Uint16",name:"iconBoxStartIndex"},{type:"Uint16",name:"iconBoxEndIndex"},{type:"Uint16",name:"glyphQuadStartIndex"},{type:"Uint16",name:"glyphQuadEndIndex"},{type:"Uint16",name:"iconQuadStartIndex"},{type:"Uint16",name:"iconQuadEndIndex"},{type:"Int16",name:"anchorPointX"},{type:"Int16",name:"anchorPointY"},{type:"Int8",name:"index"}]});util.extendAll(SymbolInstancesArray.prototype.StructType.prototype,{get anchorPoint(){return new Point(this.anchorPointX,this.anchorPointY)}})},{"../util/struct_array":135,"../util/util":137,"point-geometry":196}],99:[function(require,module,exports){"use strict";var StructArrayType=require("../util/struct_array");var util=require("../util/util");var Point=require("point-geometry");var SymbolQuad=require("./quads").SymbolQuad;var SymbolQuadsArray=module.exports=new StructArrayType({members:[{type:"Int16",name:"anchorPointX"},{type:"Int16",name:"anchorPointY"},{type:"Float32",name:"tlX"},{type:"Float32",name:"tlY"},{type:"Float32",name:"trX"},{type:"Float32",name:"trY"},{type:"Float32",name:"blX"},{type:"Float32",name:"blY"},{type:"Float32",name:"brX"},{type:"Float32",name:"brY"},{type:"Int16",name:"texH"},{type:"Int16",name:"texW"},{type:"Int16",name:"texX"},{type:"Int16",name:"texY"},{type:"Float32",name:"anchorAngle"},{type:"Float32",name:"glyphAngle"},{type:"Float32",name:"maxScale"},{type:"Float32",name:"minScale"}]});util.extendAll(SymbolQuadsArray.prototype.StructType.prototype,{get anchorPoint(){return new Point(this.anchorPointX,this.anchorPointY)},get SymbolQuad(){return new SymbolQuad(this.anchorPoint,new Point(this.tlX,this.tlY),new Point(this.trX,this.trY),new Point(this.blX,this.blY),new Point(this.brX,this.brY),{x:this.texX,y:this.texY,h:this.texH,w:this.texW,height:this.texH,width:this.texW},this.anchorAngle,this.glyphAngle,this.minScale,this.maxScale)}})},{"../util/struct_array":135,"../util/util":137,"./quads":94,"point-geometry":196}],100:[function(require,module,exports){"use strict";var DOM=require("../util/dom");var Point=require("point-geometry");var handlers={scrollZoom:require("./handler/scroll_zoom"),boxZoom:require("./handler/box_zoom"),dragRotate:require("./handler/drag_rotate"),dragPan:require("./handler/drag_pan"),keyboard:require("./handler/keyboard"),doubleClickZoom:require("./handler/dblclick_zoom"),touchZoomRotate:require("./handler/touch_zoom_rotate")};module.exports=function bindHandlers(map,options){var el=map.getCanvasContainer();var contextMenuEvent=null;var startPos=null;var tapped=null;for(var name in handlers){map[name]=new handlers[name](map,options);if(options.interactive&&options[name]){map[name].enable()}}el.addEventListener("mouseout",onMouseOut,false);el.addEventListener("mousedown",onMouseDown,false);el.addEventListener("mouseup",onMouseUp,false);el.addEventListener("mousemove",onMouseMove,false);el.addEventListener("touchstart",onTouchStart,false);el.addEventListener("touchend",onTouchEnd,false);el.addEventListener("touchmove",onTouchMove,false);el.addEventListener("touchcancel",onTouchCancel,false);el.addEventListener("click",onClick,false);el.addEventListener("dblclick",onDblClick,false);el.addEventListener("contextmenu",onContextMenu,false);function onMouseOut(e){fireMouseEvent("mouseout",e)}function onMouseDown(e){map.stop();startPos=DOM.mousePos(el,e);fireMouseEvent("mousedown",e)}function onMouseUp(e){var rotating=map.dragRotate&&map.dragRotate.isActive();if(contextMenuEvent&&!rotating){fireMouseEvent("contextmenu",contextMenuEvent)}contextMenuEvent=null;fireMouseEvent("mouseup",e)}function onMouseMove(e){if(map.dragPan&&map.dragPan.isActive())return;if(map.dragRotate&&map.dragRotate.isActive())return;var target=e.toElement||e.target;while(target&&target!==el)target=target.parentNode;if(target!==el)return;fireMouseEvent("mousemove",e)}function onTouchStart(e){map.stop();fireTouchEvent("touchstart",e);if(!e.touches||e.touches.length>1)return;if(!tapped){tapped=setTimeout(onTouchTimeout,300)}else{clearTimeout(tapped);tapped=null;fireMouseEvent("dblclick",e)}}function onTouchMove(e){fireTouchEvent("touchmove",e)}function onTouchEnd(e){fireTouchEvent("touchend",e)}function onTouchCancel(e){fireTouchEvent("touchcancel",e)}function onTouchTimeout(){tapped=null}function onClick(e){var pos=DOM.mousePos(el,e);if(pos.equals(startPos)){fireMouseEvent("click",e)}}function onDblClick(e){fireMouseEvent("dblclick",e);e.preventDefault()}function onContextMenu(e){contextMenuEvent=e;e.preventDefault()}function fireMouseEvent(type,e){var pos=DOM.mousePos(el,e);return map.fire(type,{lngLat:map.unproject(pos),point:pos,originalEvent:e})}function fireTouchEvent(type,e){var touches=DOM.touchPos(el,e);var singular=touches.reduce(function(prev,curr,i,arr){return prev.add(curr.div(arr.length))},new Point(0,0));return map.fire(type,{lngLat:map.unproject(singular),point:singular,lngLats:touches.map(function(t){return map.unproject(t)},this),points:touches,originalEvent:e})}}},{"../util/dom":127,"./handler/box_zoom":107,"./handler/dblclick_zoom":108,"./handler/drag_pan":109,"./handler/drag_rotate":110,"./handler/keyboard":111,"./handler/scroll_zoom":112,"./handler/touch_zoom_rotate":113,"point-geometry":196}],101:[function(require,module,exports){"use strict";var util=require("../util/util");var interpolate=require("../util/interpolate");var browser=require("../util/browser");var LngLat=require("../geo/lng_lat");var LngLatBounds=require("../geo/lng_lat_bounds");var Point=require("point-geometry");var Camera=module.exports=function(){};util.extend(Camera.prototype,{getCenter:function(){return this.transform.center},setCenter:function(center,eventData){this.jumpTo({center:center},eventData);return this},panBy:function(offset,options,eventData){this.panTo(this.transform.center,util.extend({offset:Point.convert(offset).mult(-1)},options),eventData);return this},panTo:function(lnglat,options,eventData){return this.easeTo(util.extend({center:lnglat},options),eventData)},getZoom:function(){return this.transform.zoom},setZoom:function(zoom,eventData){this.jumpTo({zoom:zoom},eventData);return this},zoomTo:function(zoom,options,eventData){return this.easeTo(util.extend({zoom:zoom},options),eventData)},zoomIn:function(options,eventData){this.zoomTo(this.getZoom()+1,options,eventData);return this},zoomOut:function(options,eventData){this.zoomTo(this.getZoom()-1,options,eventData);return this},getBearing:function(){return this.transform.bearing},setBearing:function(bearing,eventData){this.jumpTo({bearing:bearing},eventData);return this},rotateTo:function(bearing,options,eventData){return this.easeTo(util.extend({bearing:bearing},options),eventData)},resetNorth:function(options,eventData){this.rotateTo(0,util.extend({duration:1e3},options),eventData);return this},snapToNorth:function(options,eventData){if(Math.abs(this.getBearing())<this._bearingSnap){return this.resetNorth(options,eventData)}return this},getPitch:function(){return this.transform.pitch},setPitch:function(pitch,eventData){this.jumpTo({pitch:pitch},eventData);return this},fitBounds:function(bounds,options,eventData){options=util.extend({padding:0,offset:[0,0],maxZoom:Infinity},options);bounds=LngLatBounds.convert(bounds);var offset=Point.convert(options.offset),tr=this.transform,nw=tr.project(bounds.getNorthWest()),se=tr.project(bounds.getSouthEast()),size=se.sub(nw),scaleX=(tr.width-options.padding*2-Math.abs(offset.x)*2)/size.x,scaleY=(tr.height-options.padding*2-Math.abs(offset.y)*2)/size.y;options.center=tr.unproject(nw.add(se).div(2));options.zoom=Math.min(tr.scaleZoom(tr.scale*Math.min(scaleX,scaleY)),options.maxZoom);options.bearing=0;return options.linear?this.easeTo(options,eventData):this.flyTo(options,eventData)},jumpTo:function(options,eventData){this.stop();var tr=this.transform,zoomChanged=false,bearingChanged=false,pitchChanged=false;if("zoom"in options&&tr.zoom!==+options.zoom){zoomChanged=true;tr.zoom=+options.zoom}if("center"in options){tr.center=LngLat.convert(options.center)}if("bearing"in options&&tr.bearing!==+options.bearing){bearingChanged=true;tr.bearing=+options.bearing}if("pitch"in options&&tr.pitch!==+options.pitch){pitchChanged=true;tr.pitch=+options.pitch}this.fire("movestart",eventData).fire("move",eventData);if(zoomChanged){this.fire("zoomstart",eventData).fire("zoom",eventData).fire("zoomend",eventData)}if(bearingChanged){this.fire("rotate",eventData)}if(pitchChanged){this.fire("pitch",eventData)}return this.fire("moveend",eventData)},easeTo:function(options,eventData){this.stop();options=util.extend({offset:[0,0],duration:500,easing:util.ease},options);var tr=this.transform,offset=Point.convert(options.offset),startZoom=this.getZoom(),startBearing=this.getBearing(),startPitch=this.getPitch(),zoom="zoom"in options?+options.zoom:startZoom,bearing="bearing"in options?this._normalizeBearing(options.bearing,startBearing):startBearing,pitch="pitch"in options?+options.pitch:startPitch,toLngLat,toPoint;if("center"in options){toLngLat=LngLat.convert(options.center);toPoint=tr.centerPoint.add(offset)}else if("around"in options){toLngLat=LngLat.convert(options.around);toPoint=tr.locationPoint(toLngLat)}else{toPoint=tr.centerPoint.add(offset);toLngLat=tr.pointLocation(toPoint)}var fromPoint=tr.locationPoint(toLngLat);if(options.animate===false)options.duration=0;this.zooming=zoom!==startZoom;this.rotating=startBearing!==bearing;this.pitching=pitch!==startPitch;if(options.smoothEasing&&options.duration!==0){options.easing=this._smoothOutEasing(options.duration)}if(!options.noMoveStart){this.fire("movestart",eventData)}if(this.zooming){this.fire("zoomstart",eventData)}clearTimeout(this._onEaseEnd);this._ease(function(k){if(this.zooming){tr.zoom=interpolate(startZoom,zoom,k)}if(this.rotating){tr.bearing=interpolate(startBearing,bearing,k)}if(this.pitching){tr.pitch=interpolate(startPitch,pitch,k)}tr.setLocationAtPoint(toLngLat,fromPoint.add(toPoint.sub(fromPoint)._mult(k)));this.fire("move",eventData);if(this.zooming){this.fire("zoom",eventData)}if(this.rotating){this.fire("rotate",eventData)}if(this.pitching){this.fire("pitch",eventData)}},function(){if(options.delayEndEvents){this._onEaseEnd=setTimeout(this._easeToEnd.bind(this,eventData),options.delayEndEvents)}else{this._easeToEnd(eventData)}}.bind(this),options);return this},_easeToEnd:function(eventData){var wasZooming=this.zooming;this.zooming=false;this.rotating=false;this.pitching=false;if(wasZooming){this.fire("zoomend",eventData)}this.fire("moveend",eventData)},flyTo:function(options,eventData){this.stop();options=util.extend({offset:[0,0],speed:1.2,curve:1.42,easing:util.ease},options);var tr=this.transform,offset=Point.convert(options.offset),startZoom=this.getZoom(),startBearing=this.getBearing(),startPitch=this.getPitch();var center="center"in options?LngLat.convert(options.center):this.getCenter();var zoom="zoom"in options?+options.zoom:startZoom;var bearing="bearing"in options?this._normalizeBearing(options.bearing,startBearing):startBearing;var pitch="pitch"in options?+options.pitch:startPitch;if(Math.abs(tr.center.lng)+Math.abs(center.lng)>180){if(tr.center.lng>0&&center.lng<0){center.lng+=360}else if(tr.center.lng<0&&center.lng>0){center.lng-=360}}var scale=tr.zoomScale(zoom-startZoom),from=tr.point,to="center"in options?tr.project(center).sub(offset.div(scale)):from;var startWorldSize=tr.worldSize,rho=options.curve,w0=Math.max(tr.width,tr.height),w1=w0/scale,u1=to.sub(from).mag();if("minZoom"in options){var minZoom=util.clamp(Math.min(options.minZoom,startZoom,zoom),tr.minZoom,tr.maxZoom);var wMax=w0/tr.zoomScale(minZoom-startZoom);rho=Math.sqrt(wMax/u1*2)}var rho2=rho*rho;function r(i){var b=(w1*w1-w0*w0+(i?-1:1)*rho2*rho2*u1*u1)/(2*(i?w1:w0)*rho2*u1);return Math.log(Math.sqrt(b*b+1)-b)}function sinh(n){return(Math.exp(n)-Math.exp(-n))/2}function cosh(n){return(Math.exp(n)+Math.exp(-n))/2}function tanh(n){return sinh(n)/cosh(n)}var r0=r(0),w=function(s){return cosh(r0)/cosh(r0+rho*s)},u=function(s){return w0*((cosh(r0)*tanh(r0+rho*s)-sinh(r0))/rho2)/u1},S=(r(1)-r0)/rho;if(Math.abs(u1)<1e-6){if(Math.abs(w0-w1)<1e-6)return this.easeTo(options);var k=w1<w0?-1:1;S=Math.abs(Math.log(w1/w0))/rho;u=function(){return 0};w=function(s){return Math.exp(k*rho*s)}}if("duration"in options){options.duration=+options.duration}else{var V="screenSpeed"in options?+options.screenSpeed/rho:+options.speed;options.duration=1e3*S/V}this.zooming=true;if(startBearing!==bearing)this.rotating=true;if(startPitch!==pitch)this.pitching=true;this.fire("movestart",eventData);this.fire("zoomstart",eventData);this._ease(function(k){var s=k*S,us=u(s);tr.zoom=startZoom+tr.scaleZoom(1/w(s));tr.center=tr.unproject(from.add(to.sub(from).mult(us)),startWorldSize);if(this.rotating){tr.bearing=interpolate(startBearing,bearing,k)}if(this.pitching){tr.pitch=interpolate(startPitch,pitch,k)}this.fire("move",eventData);this.fire("zoom",eventData);if(this.rotating){this.fire("rotate",eventData)}if(this.pitching){this.fire("pitch",eventData)}},function(){this.zooming=false;this.rotating=false;this.pitching=false;this.fire("zoomend",eventData);this.fire("moveend",eventData)},options);return this},isEasing:function(){return!!this._abortFn},stop:function(){if(this._abortFn){this._abortFn();this._finishEase()}return this},_ease:function(frame,finish,options){this._finishFn=finish;this._abortFn=browser.timed(function(t){frame.call(this,options.easing(t));if(t===1){this._finishEase()}},options.animate===false?0:options.duration,this)},_finishEase:function(){delete this._abortFn;var finish=this._finishFn;delete this._finishFn;finish.call(this)},_normalizeBearing:function(bearing,currentBearing){bearing=util.wrap(bearing,-180,180);var diff=Math.abs(bearing-currentBearing);if(Math.abs(bearing-360-currentBearing)<diff)bearing-=360;if(Math.abs(bearing+360-currentBearing)<diff)bearing+=360;return bearing},_smoothOutEasing:function(duration){var easing=util.ease;if(this._prevEase){var ease=this._prevEase,t=(Date.now()-ease.start)/ease.duration,speed=ease.easing(t+.01)-ease.easing(t),x=.27/Math.sqrt(speed*speed+1e-4)*.01,y=Math.sqrt(.27*.27-x*x);easing=util.bezier(x,y,.25,1)}this._prevEase={start:(new Date).getTime(),duration:duration,easing:easing};return easing}})},{"../geo/lng_lat":28,"../geo/lng_lat_bounds":29,"../util/browser":120,"../util/interpolate":131,"../util/util":137,"point-geometry":196}],102:[function(require,module,exports){"use strict";var Control=require("./control");var DOM=require("../../util/dom");var util=require("../../util/util");module.exports=AttributionControl;function AttributionControl(options){util.setOptions(this,options)}AttributionControl.prototype=util.inherit(Control,{options:{position:"bottom-right"},onAdd:function(map){var className="mapboxgl-ctrl-attrib",container=this._container=DOM.create("div",className,map.getContainer());this._updateAttributions();this._updateEditLink();map.on("data",function(event){if(event.dataType==="source"){this._updateAttributions();this._updateEditLink()}}.bind(this));map.on("moveend",this._updateEditLink.bind(this));return container},_updateAttributions:function(){if(!this._map.style)return;var attributions=[];var sourceCaches=this._map.style.sourceCaches;for(var id in sourceCaches){var source=sourceCaches[id].getSource();if(source.attribution&&attributions.indexOf(source.attribution)<0){attributions.push(source.attribution)}}attributions.sort(function(a,b){return a.length-b.length});attributions=attributions.filter(function(attrib,i){for(var j=i+1;j<attributions.length;j++){if(attributions[j].indexOf(attrib)>=0){return false}}return true});this._container.innerHTML=attributions.join(" | ");this._editLink=null},_updateEditLink:function(){if(!this._editLink)this._editLink=this._container.querySelector(".mapbox-improve-map");if(this._editLink){var center=this._map.getCenter();this._editLink.href="https://www.mapbox.com/map-feedback/#/"+center.lng+"/"+center.lat+"/"+Math.round(this._map.getZoom()+1)}}})},{"../../util/dom":127,"../../util/util":137,"./control":103}],103:[function(require,module,exports){"use strict";var util=require("../../util/util");var Evented=require("../../util/evented");module.exports=Control;function Control(){}Control.prototype={addTo:function(map){this._map=map;var container=this._container=this.onAdd(map);if(this.options&&this.options.position){var pos=this.options.position;var corner=map._controlCorners[pos];container.className+=" mapboxgl-ctrl";if(pos.indexOf("bottom")!==-1){corner.insertBefore(container,corner.firstChild)}else{corner.appendChild(container)}}return this},remove:function(){this._container.parentNode.removeChild(this._container);if(this.onRemove)this.onRemove(this._map);this._map=null;return this}};util.extend(Control.prototype,Evented)},{"../../util/evented":128,"../../util/util":137}],104:[function(require,module,exports){"use strict";var Control=require("./control");var browser=require("../../util/browser");var DOM=require("../../util/dom");var util=require("../../util/util");var window=require("../../util/window");module.exports=GeolocateControl;var geoOptions={enableHighAccuracy:false,timeout:6e3};function GeolocateControl(options){util.setOptions(this,options)}GeolocateControl.prototype=util.inherit(Control,{options:{position:"top-right"},onAdd:function(map){var className="mapboxgl-ctrl";var container=this._container=DOM.create("div",className+"-group",map.getContainer());if(!browser.supportsGeolocation)return container;this._container.addEventListener("contextmenu",this._onContextMenu.bind(this));this._geolocateButton=DOM.create("button",className+"-icon "+className+"-geolocate",this._container);this._geolocateButton.type="button";this._geolocateButton.addEventListener("click",this._onClickGeolocate.bind(this));return container},_onContextMenu:function(e){e.preventDefault()},_onClickGeolocate:function(){window.navigator.geolocation.getCurrentPosition(this._success.bind(this),this._error.bind(this),geoOptions);this._timeoutId=setTimeout(this._finish.bind(this),1e4)},_success:function(position){this._map.jumpTo({center:[position.coords.longitude,position.coords.latitude],zoom:17,bearing:0,pitch:0});this.fire("geolocate",position);this._finish()},_error:function(error){this.fire("error",error);this._finish()},_finish:function(){if(this._timeoutId){clearTimeout(this._timeoutId)}this._timeoutId=undefined}})},{"../../util/browser":120,"../../util/dom":127,"../../util/util":137,"../../util/window":122,"./control":103}],105:[function(require,module,exports){"use strict";var Control=require("./control");var DOM=require("../../util/dom");var util=require("../../util/util");var window=require("../../util/window");module.exports=NavigationControl;function NavigationControl(options){util.setOptions(this,options)}NavigationControl.prototype=util.inherit(Control,{options:{position:"top-right"},onAdd:function(map){var className="mapboxgl-ctrl";var container=this._container=DOM.create("div",className+"-group",map.getContainer());this._container.addEventListener("contextmenu",this._onContextMenu.bind(this));this._zoomInButton=this._createButton(className+"-icon "+className+"-zoom-in",map.zoomIn.bind(map));this._zoomOutButton=this._createButton(className+"-icon "+className+"-zoom-out",map.zoomOut.bind(map));this._compass=this._createButton(className+"-icon "+className+"-compass",map.resetNorth.bind(map));this._compassArrow=DOM.create("span","arrow",this._compass);this._compass.addEventListener("mousedown",this._onCompassDown.bind(this));this._onCompassMove=this._onCompassMove.bind(this);this._onCompassUp=this._onCompassUp.bind(this);map.on("rotate",this._rotateCompassArrow.bind(this));this._rotateCompassArrow();this._el=map.getCanvasContainer();return container},_onContextMenu:function(e){e.preventDefault()},_onCompassDown:function(e){if(e.button!==0)return;DOM.disableDrag();window.document.addEventListener("mousemove",this._onCompassMove);window.document.addEventListener("mouseup",this._onCompassUp);this._el.dispatchEvent(copyMouseEvent(e));e.stopPropagation()},_onCompassMove:function(e){if(e.button!==0)return;this._el.dispatchEvent(copyMouseEvent(e));e.stopPropagation()},_onCompassUp:function(e){if(e.button!==0)return;window.document.removeEventListener("mousemove",this._onCompassMove);window.document.removeEventListener("mouseup",this._onCompassUp);DOM.enableDrag();this._el.dispatchEvent(copyMouseEvent(e));e.stopPropagation()},_createButton:function(className,fn){var a=DOM.create("button",className,this._container);a.type="button";a.addEventListener("click",function(){fn()});return a},_rotateCompassArrow:function(){var rotate="rotate("+this._map.transform.angle*(180/Math.PI)+"deg)";this._compassArrow.style.transform=rotate}});function copyMouseEvent(e){return new window.MouseEvent(e.type,{button:2,buttons:2,bubbles:true,cancelable:true,detail:e.detail,view:e.view,screenX:e.screenX,screenY:e.screenY,clientX:e.clientX,clientY:e.clientY,movementX:e.movementX,movementY:e.movementY,ctrlKey:e.ctrlKey,shiftKey:e.shiftKey,altKey:e.altKey,metaKey:e.metaKey})}},{"../../util/dom":127,"../../util/util":137,"../../util/window":122,"./control":103}],106:[function(require,module,exports){"use strict";var util=require("../../util/util");var Control=require("./control");var DOM=require("../../util/dom");module.exports=ScaleControl;function ScaleControl(options){util.setOptions(this,options)}ScaleControl.prototype=util.inherit(Control,{options:{position:"bottom-left"},onAdd:function(map){var className="mapboxgl-ctrl-scale",container=this._container=DOM.create("div",className,map.getContainer()),options=this.options;updateScale(map,container,options);map.on("move",function(){updateScale(map,container,options)});return container}});function updateScale(map,scale,options){var maxWidth=options&&options.maxWidth||100;var y=map._container.clientHeight/2;var maxMeters=getDistance(map.unproject([0,y]),map.unproject([maxWidth,y]));if(options&&options.unit==="imperial"){var maxFeet=3.2808*maxMeters;if(maxFeet>5280){var maxMiles=maxFeet/5280;setScale(scale,maxWidth,maxMiles,"mi")}else{setScale(scale,maxWidth,maxFeet,"ft")}}else{setScale(scale,maxWidth,maxMeters,"m")}}function setScale(scale,maxWidth,maxDistance,unit){var distance=getRoundNum(maxDistance);var ratio=distance/maxDistance;if(unit==="m"&&distance>=1e3){distance=distance/1e3;unit="km"}scale.style.width=maxWidth*ratio+"px";scale.innerHTML=distance+unit}function getDistance(latlng1,latlng2){var R=6371e3;var rad=Math.PI/180,lat1=latlng1.lat*rad,lat2=latlng2.lat*rad,a=Math.sin(lat1)*Math.sin(lat2)+Math.cos(lat1)*Math.cos(lat2)*Math.cos((latlng2.lng-latlng1.lng)*rad);var maxMeters=R*Math.acos(Math.min(a,1));return maxMeters}function getRoundNum(num){var pow10=Math.pow(10,(Math.floor(num)+"").length-1),d=num/pow10;d=d>=10?10:d>=5?5:d>=3?3:d>=2?2:1;return pow10*d}},{"../../util/dom":127,"../../util/util":137,"./control":103}],107:[function(require,module,exports){"use strict";var DOM=require("../../util/dom");var LngLatBounds=require("../../geo/lng_lat_bounds");var util=require("../../util/util");var window=require("../../util/window");module.exports=BoxZoomHandler;function BoxZoomHandler(map){this._map=map;this._el=map.getCanvasContainer();this._container=map.getContainer();util.bindHandlers(this)}BoxZoomHandler.prototype={_enabled:false,_active:false,isEnabled:function(){return this._enabled},isActive:function(){return this._active},enable:function(){if(this.isEnabled())return;this._el.addEventListener("mousedown",this._onMouseDown,false);this._enabled=true},disable:function(){if(!this.isEnabled())return;this._el.removeEventListener("mousedown",this._onMouseDown);this._enabled=false},_onMouseDown:function(e){if(!(e.shiftKey&&e.button===0))return;window.document.addEventListener("mousemove",this._onMouseMove,false);window.document.addEventListener("keydown",this._onKeyDown,false);window.document.addEventListener("mouseup",this._onMouseUp,false);DOM.disableDrag();this._startPos=DOM.mousePos(this._el,e);this._active=true},_onMouseMove:function(e){var p0=this._startPos,p1=DOM.mousePos(this._el,e);if(!this._box){this._box=DOM.create("div","mapboxgl-boxzoom",this._container);this._container.classList.add("mapboxgl-crosshair");this._fireEvent("boxzoomstart",e)}var minX=Math.min(p0.x,p1.x),maxX=Math.max(p0.x,p1.x),minY=Math.min(p0.y,p1.y),maxY=Math.max(p0.y,p1.y);DOM.setTransform(this._box,"translate("+minX+"px,"+minY+"px)");this._box.style.width=maxX-minX+"px";this._box.style.height=maxY-minY+"px"},_onMouseUp:function(e){if(e.button!==0)return;var p0=this._startPos,p1=DOM.mousePos(this._el,e),bounds=(new LngLatBounds).extend(this._map.unproject(p0)).extend(this._map.unproject(p1));this._finish();if(p0.x===p1.x&&p0.y===p1.y){this._fireEvent("boxzoomcancel",e)}else{this._map.fitBounds(bounds,{linear:true}).fire("boxzoomend",{originalEvent:e,boxZoomBounds:bounds})}},_onKeyDown:function(e){if(e.keyCode===27){this._finish();this._fireEvent("boxzoomcancel",e)}},_finish:function(){this._active=false;window.document.removeEventListener("mousemove",this._onMouseMove,false);window.document.removeEventListener("keydown",this._onKeyDown,false);window.document.removeEventListener("mouseup",this._onMouseUp,false);this._container.classList.remove("mapboxgl-crosshair");if(this._box){this._box.parentNode.removeChild(this._box);this._box=null}DOM.enableDrag()},_fireEvent:function(type,e){return this._map.fire(type,{originalEvent:e
})}}},{"../../geo/lng_lat_bounds":29,"../../util/dom":127,"../../util/util":137,"../../util/window":122}],108:[function(require,module,exports){"use strict";module.exports=DoubleClickZoomHandler;function DoubleClickZoomHandler(map){this._map=map;this._onDblClick=this._onDblClick.bind(this)}DoubleClickZoomHandler.prototype={_enabled:false,isEnabled:function(){return this._enabled},enable:function(){if(this.isEnabled())return;this._map.on("dblclick",this._onDblClick);this._enabled=true},disable:function(){if(!this.isEnabled())return;this._map.off("dblclick",this._onDblClick);this._enabled=false},_onDblClick:function(e){this._map.zoomTo(this._map.getZoom()+(e.originalEvent.shiftKey?-1:1),{around:e.lngLat},e)}}},{}],109:[function(require,module,exports){"use strict";var DOM=require("../../util/dom");var util=require("../../util/util");var window=require("../../util/window");module.exports=DragPanHandler;var inertiaLinearity=.3,inertiaEasing=util.bezier(0,0,inertiaLinearity,1),inertiaMaxSpeed=1400,inertiaDeceleration=2500;function DragPanHandler(map){this._map=map;this._el=map.getCanvasContainer();util.bindHandlers(this)}DragPanHandler.prototype={_enabled:false,_active:false,isEnabled:function(){return this._enabled},isActive:function(){return this._active},enable:function(){if(this.isEnabled())return;this._el.addEventListener("mousedown",this._onDown);this._el.addEventListener("touchstart",this._onDown);this._enabled=true},disable:function(){if(!this.isEnabled())return;this._el.removeEventListener("mousedown",this._onDown);this._el.removeEventListener("touchstart",this._onDown);this._enabled=false},_onDown:function(e){if(this._ignoreEvent(e))return;if(this.isActive())return;if(e.touches){window.document.addEventListener("touchmove",this._onMove);window.document.addEventListener("touchend",this._onTouchEnd)}else{window.document.addEventListener("mousemove",this._onMove);window.document.addEventListener("mouseup",this._onMouseUp)}this._active=false;this._startPos=this._pos=DOM.mousePos(this._el,e);this._inertia=[[Date.now(),this._pos]]},_onMove:function(e){if(this._ignoreEvent(e))return;if(!this.isActive()){this._active=true;this._fireEvent("dragstart",e);this._fireEvent("movestart",e)}var pos=DOM.mousePos(this._el,e),map=this._map;map.stop();this._drainInertiaBuffer();this._inertia.push([Date.now(),pos]);map.transform.setLocationAtPoint(map.transform.pointLocation(this._pos),pos);this._fireEvent("drag",e);this._fireEvent("move",e);this._pos=pos;e.preventDefault()},_onUp:function(e){if(!this.isActive())return;this._active=false;this._fireEvent("dragend",e);this._drainInertiaBuffer();var finish=function(){this._fireEvent("moveend",e)}.bind(this);var inertia=this._inertia;if(inertia.length<2){finish();return}var last=inertia[inertia.length-1],first=inertia[0],flingOffset=last[1].sub(first[1]),flingDuration=(last[0]-first[0])/1e3;if(flingDuration===0||last[1].equals(first[1])){finish();return}var velocity=flingOffset.mult(inertiaLinearity/flingDuration),speed=velocity.mag();if(speed>inertiaMaxSpeed){speed=inertiaMaxSpeed;velocity._unit()._mult(speed)}var duration=speed/(inertiaDeceleration*inertiaLinearity),offset=velocity.mult(-duration/2);this._map.panBy(offset,{duration:duration*1e3,easing:inertiaEasing,noMoveStart:true},{originalEvent:e})},_onMouseUp:function(e){if(this._ignoreEvent(e))return;this._onUp(e);window.document.removeEventListener("mousemove",this._onMove);window.document.removeEventListener("mouseup",this._onMouseUp)},_onTouchEnd:function(e){if(this._ignoreEvent(e))return;this._onUp(e);window.document.removeEventListener("touchmove",this._onMove);window.document.removeEventListener("touchend",this._onTouchEnd)},_fireEvent:function(type,e){return this._map.fire(type,{originalEvent:e})},_ignoreEvent:function(e){var map=this._map;if(map.boxZoom&&map.boxZoom.isActive())return true;if(map.dragRotate&&map.dragRotate.isActive())return true;if(e.touches){return e.touches.length>1}else{if(e.ctrlKey)return true;var buttons=1,button=0;return e.type==="mousemove"?e.buttons&buttons===0:e.button!==button}},_drainInertiaBuffer:function(){var inertia=this._inertia,now=Date.now(),cutoff=160;while(inertia.length>0&&now-inertia[0][0]>cutoff)inertia.shift()}}},{"../../util/dom":127,"../../util/util":137,"../../util/window":122}],110:[function(require,module,exports){"use strict";var DOM=require("../../util/dom");var util=require("../../util/util");var window=require("../../util/window");module.exports=DragRotateHandler;var inertiaLinearity=.25,inertiaEasing=util.bezier(0,0,inertiaLinearity,1),inertiaMaxSpeed=180,inertiaDeceleration=720;function DragRotateHandler(map,options){this._map=map;this._el=map.getCanvasContainer();this._bearingSnap=options.bearingSnap;this._pitchWithRotate=options.pitchWithRotate!==false;util.bindHandlers(this)}DragRotateHandler.prototype={_enabled:false,_active:false,isEnabled:function(){return this._enabled},isActive:function(){return this._active},enable:function(){if(this.isEnabled())return;this._el.addEventListener("mousedown",this._onDown);this._enabled=true},disable:function(){if(!this.isEnabled())return;this._el.removeEventListener("mousedown",this._onDown);this._enabled=false},_onDown:function(e){if(this._ignoreEvent(e))return;if(this.isActive())return;window.document.addEventListener("mousemove",this._onMove);window.document.addEventListener("mouseup",this._onUp);this._active=false;this._inertia=[[Date.now(),this._map.getBearing()]];this._startPos=this._pos=DOM.mousePos(this._el,e);this._center=this._map.transform.centerPoint;e.preventDefault()},_onMove:function(e){if(this._ignoreEvent(e))return;if(!this.isActive()){this._active=true;this._fireEvent("rotatestart",e);this._fireEvent("movestart",e)}var map=this._map;map.stop();var p1=this._pos,p2=DOM.mousePos(this._el,e),bearingDiff=(p1.x-p2.x)*.8,pitchDiff=(p1.y-p2.y)*-.5,bearing=map.getBearing()-bearingDiff,pitch=map.getPitch()-pitchDiff,inertia=this._inertia,last=inertia[inertia.length-1];this._drainInertiaBuffer();inertia.push([Date.now(),map._normalizeBearing(bearing,last[1])]);map.transform.bearing=bearing;if(this._pitchWithRotate)map.transform.pitch=pitch;this._fireEvent("rotate",e);this._fireEvent("move",e);this._pos=p2},_onUp:function(e){if(this._ignoreEvent(e))return;window.document.removeEventListener("mousemove",this._onMove);window.document.removeEventListener("mouseup",this._onUp);if(!this.isActive())return;this._active=false;this._fireEvent("rotateend",e);this._drainInertiaBuffer();var map=this._map,mapBearing=map.getBearing(),inertia=this._inertia;var finish=function(){if(Math.abs(mapBearing)<this._bearingSnap){map.resetNorth({noMoveStart:true},{originalEvent:e})}else{this._fireEvent("moveend",e)}}.bind(this);if(inertia.length<2){finish();return}var first=inertia[0],last=inertia[inertia.length-1],previous=inertia[inertia.length-2],bearing=map._normalizeBearing(mapBearing,previous[1]),flingDiff=last[1]-first[1],sign=flingDiff<0?-1:1,flingDuration=(last[0]-first[0])/1e3;if(flingDiff===0||flingDuration===0){finish();return}var speed=Math.abs(flingDiff*(inertiaLinearity/flingDuration));if(speed>inertiaMaxSpeed){speed=inertiaMaxSpeed}var duration=speed/(inertiaDeceleration*inertiaLinearity),offset=sign*speed*(duration/2);bearing+=offset;if(Math.abs(map._normalizeBearing(bearing,0))<this._bearingSnap){bearing=map._normalizeBearing(0,bearing)}map.rotateTo(bearing,{duration:duration*1e3,easing:inertiaEasing,noMoveStart:true},{originalEvent:e})},_fireEvent:function(type,e){return this._map.fire(type,{originalEvent:e})},_ignoreEvent:function(e){var map=this._map;if(map.boxZoom&&map.boxZoom.isActive())return true;if(map.dragPan&&map.dragPan.isActive())return true;if(e.touches){return e.touches.length>1}else{var buttons=e.ctrlKey?1:2,button=e.ctrlKey?0:2;return e.type==="mousemove"?e.buttons&buttons===0:e.button!==button}},_drainInertiaBuffer:function(){var inertia=this._inertia,now=Date.now(),cutoff=160;while(inertia.length>0&&now-inertia[0][0]>cutoff)inertia.shift()}}},{"../../util/dom":127,"../../util/util":137,"../../util/window":122}],111:[function(require,module,exports){"use strict";module.exports=KeyboardHandler;var panStep=100,bearingStep=15,pitchStep=10;function KeyboardHandler(map){this._map=map;this._el=map.getCanvasContainer();this._onKeyDown=this._onKeyDown.bind(this)}function easeOut(t){return t*(2-t)}KeyboardHandler.prototype={_enabled:false,isEnabled:function(){return this._enabled},enable:function(){if(this.isEnabled())return;this._el.addEventListener("keydown",this._onKeyDown,false);this._enabled=true},disable:function(){if(!this.isEnabled())return;this._el.removeEventListener("keydown",this._onKeyDown);this._enabled=false},_onKeyDown:function(e){if(e.altKey||e.ctrlKey||e.metaKey)return;var zoomDir=0;var bearingDir=0;var pitchDir=0;var xDir=0;var yDir=0;switch(e.keyCode){case 61:case 107:case 171:case 187:zoomDir=1;break;case 189:case 109:case 173:zoomDir=-1;break;case 37:if(e.shiftKey){bearingDir=-1}else{e.preventDefault();xDir=-1}break;case 39:if(e.shiftKey){bearingDir=1}else{e.preventDefault();xDir=1}break;case 38:if(e.shiftKey){pitchDir=1}else{e.preventDefault();yDir=-1}break;case 40:if(e.shiftKey){pitchDir=-1}else{yDir=1;e.preventDefault()}break}var map=this._map;var zoom=map.getZoom();var easeOptions={duration:300,delayEndEvents:500,easing:easeOut,zoom:zoomDir?Math.round(zoom)+zoomDir*(e.shiftKey?2:1):zoom,bearing:map.getBearing()+bearingDir*bearingStep,pitch:map.getPitch()+pitchDir*pitchStep,offset:[-xDir*panStep,-yDir*panStep],center:map.getCenter()};map.easeTo(easeOptions,{originalEvent:e})}}},{}],112:[function(require,module,exports){"use strict";var DOM=require("../../util/dom");var util=require("../../util/util");var browser=require("../../util/browser");var window=require("../../util/window");module.exports=ScrollZoomHandler;var ua=window.navigator.userAgent.toLowerCase(),firefox=ua.indexOf("firefox")!==-1,safari=ua.indexOf("safari")!==-1&&ua.indexOf("chrom")===-1;function ScrollZoomHandler(map){this._map=map;this._el=map.getCanvasContainer();util.bindHandlers(this)}ScrollZoomHandler.prototype={_enabled:false,isEnabled:function(){return this._enabled},enable:function(){if(this.isEnabled())return;this._el.addEventListener("wheel",this._onWheel,false);this._el.addEventListener("mousewheel",this._onWheel,false);this._enabled=true},disable:function(){if(!this.isEnabled())return;this._el.removeEventListener("wheel",this._onWheel);this._el.removeEventListener("mousewheel",this._onWheel);this._enabled=false},_onWheel:function(e){var value;if(e.type==="wheel"){value=e.deltaY;if(firefox&&e.deltaMode===window.WheelEvent.DOM_DELTA_PIXEL)value/=browser.devicePixelRatio;if(e.deltaMode===window.WheelEvent.DOM_DELTA_LINE)value*=40}else if(e.type==="mousewheel"){value=-e.wheelDeltaY;if(safari)value=value/3}var now=browser.now(),timeDelta=now-(this._time||0);this._pos=DOM.mousePos(this._el,e);this._time=now;if(value!==0&&value%4.000244140625===0){this._type="wheel"}else if(value!==0&&Math.abs(value)<4){this._type="trackpad"}else if(timeDelta>400){this._type=null;this._lastValue=value;this._timeout=setTimeout(this._onTimeout,40)}else if(!this._type){this._type=Math.abs(timeDelta*value)<200?"trackpad":"wheel";if(this._timeout){clearTimeout(this._timeout);this._timeout=null;value+=this._lastValue}}if(e.shiftKey&&value)value=value/4;if(this._type)this._zoom(-value,e);e.preventDefault()},_onTimeout:function(){this._type="wheel";this._zoom(-this._lastValue)},_zoom:function(delta,e){if(delta===0)return;var map=this._map;var scale=2/(1+Math.exp(-Math.abs(delta/100)));if(delta<0&&scale!==0)scale=1/scale;var fromScale=map.ease?map.ease.to:map.transform.scale,targetZoom=map.transform.scaleZoom(fromScale*scale);map.zoomTo(targetZoom,{duration:this._type==="wheel"?200:0,around:map.unproject(this._pos),delayEndEvents:200,smoothEasing:true},{originalEvent:e})}}},{"../../util/browser":120,"../../util/dom":127,"../../util/util":137,"../../util/window":122}],113:[function(require,module,exports){"use strict";var DOM=require("../../util/dom");var util=require("../../util/util");var window=require("../../util/window");module.exports=TouchZoomRotateHandler;var inertiaLinearity=.15,inertiaEasing=util.bezier(0,0,inertiaLinearity,1),inertiaDeceleration=12,inertiaMaxSpeed=2.5,significantScaleThreshold=.15,significantRotateThreshold=4;function TouchZoomRotateHandler(map){this._map=map;this._el=map.getCanvasContainer();util.bindHandlers(this)}TouchZoomRotateHandler.prototype={_enabled:false,isEnabled:function(){return this._enabled},enable:function(){if(this.isEnabled())return;this._el.addEventListener("touchstart",this._onStart,false);this._enabled=true},disable:function(){if(!this.isEnabled())return;this._el.removeEventListener("touchstart",this._onStart);this._enabled=false},disableRotation:function(){this._rotationDisabled=true},enableRotation:function(){this._rotationDisabled=false},_onStart:function(e){if(e.touches.length!==2)return;var p0=DOM.mousePos(this._el,e.touches[0]),p1=DOM.mousePos(this._el,e.touches[1]);this._startVec=p0.sub(p1);this._startScale=this._map.transform.scale;this._startBearing=this._map.transform.bearing;this._gestureIntent=undefined;this._inertia=[];window.document.addEventListener("touchmove",this._onMove,false);window.document.addEventListener("touchend",this._onEnd,false)},_onMove:function(e){if(e.touches.length!==2)return;var p0=DOM.mousePos(this._el,e.touches[0]),p1=DOM.mousePos(this._el,e.touches[1]),p=p0.add(p1).div(2),vec=p0.sub(p1),scale=vec.mag()/this._startVec.mag(),bearing=this._rotationDisabled?0:vec.angleWith(this._startVec)*180/Math.PI,map=this._map;if(!this._gestureIntent){var scalingSignificantly=Math.abs(1-scale)>significantScaleThreshold,rotatingSignificantly=Math.abs(bearing)>significantRotateThreshold;if(rotatingSignificantly){this._gestureIntent="rotate"}else if(scalingSignificantly){this._gestureIntent="zoom"}if(this._gestureIntent){this._startVec=vec;this._startScale=map.transform.scale;this._startBearing=map.transform.bearing}}else{var param={duration:0,around:map.unproject(p)};if(this._gestureIntent==="rotate"){param.bearing=this._startBearing+bearing}if(this._gestureIntent==="zoom"||this._gestureIntent==="rotate"){param.zoom=map.transform.scaleZoom(this._startScale*scale)}map.stop();this._drainInertiaBuffer();this._inertia.push([Date.now(),scale,p]);map.easeTo(param,{originalEvent:e})}e.preventDefault()},_onEnd:function(e){window.document.removeEventListener("touchmove",this._onMove);window.document.removeEventListener("touchend",this._onEnd);this._drainInertiaBuffer();var inertia=this._inertia,map=this._map;if(inertia.length<2){map.snapToNorth({},{originalEvent:e});return}var last=inertia[inertia.length-1],first=inertia[0],lastScale=map.transform.scaleZoom(this._startScale*last[1]),firstScale=map.transform.scaleZoom(this._startScale*first[1]),scaleOffset=lastScale-firstScale,scaleDuration=(last[0]-first[0])/1e3,p=last[2];if(scaleDuration===0||lastScale===firstScale){map.snapToNorth({},{originalEvent:e});return}var speed=scaleOffset*inertiaLinearity/scaleDuration;if(Math.abs(speed)>inertiaMaxSpeed){if(speed>0){speed=inertiaMaxSpeed}else{speed=-inertiaMaxSpeed}}var duration=Math.abs(speed/(inertiaDeceleration*inertiaLinearity))*1e3,targetScale=lastScale+speed*duration/2e3;if(targetScale<0){targetScale=0}map.easeTo({zoom:targetScale,duration:duration,easing:inertiaEasing,around:map.unproject(p)},{originalEvent:e})},_drainInertiaBuffer:function(){var inertia=this._inertia,now=Date.now(),cutoff=160;while(inertia.length>2&&now-inertia[0][0]>cutoff)inertia.shift()}}},{"../../util/dom":127,"../../util/util":137,"../../util/window":122}],114:[function(require,module,exports){"use strict";module.exports=Hash;var util=require("../util/util");var window=require("../util/window");function Hash(){util.bindAll(["_onHashChange","_updateHash"],this)}Hash.prototype={addTo:function(map){this._map=map;window.addEventListener("hashchange",this._onHashChange,false);this._map.on("moveend",this._updateHash);return this},remove:function(){window.removeEventListener("hashchange",this._onHashChange,false);this._map.off("moveend",this._updateHash);delete this._map;return this},_onHashChange:function(){var loc=window.location.hash.replace("#","").split("/");if(loc.length>=3){this._map.jumpTo({center:[+loc[2],+loc[1]],zoom:+loc[0],bearing:+(loc[3]||0),pitch:+(loc[4]||0)});return true}return false},_updateHash:function(){var center=this._map.getCenter(),zoom=this._map.getZoom(),bearing=this._map.getBearing(),pitch=this._map.getPitch(),precision=Math.max(0,Math.ceil(Math.log(zoom)/Math.LN2)),hash="#"+Math.round(zoom*100)/100+"/"+center.lat.toFixed(precision)+"/"+center.lng.toFixed(precision);if(bearing||pitch)hash+="/"+Math.round(bearing*10)/10;if(pitch)hash+="/"+Math.round(pitch);window.history.replaceState("","",hash)}}},{"../util/util":137,"../util/window":122}],115:[function(require,module,exports){"use strict";var util=require("../util/util");var browser=require("../util/browser");var window=require("../util/window");var Evented=require("../util/evented");var DOM=require("../util/dom");var Style=require("../style/style");var AnimationLoop=require("../style/animation_loop");var Painter=require("../render/painter");var Transform=require("../geo/transform");var Hash=require("./hash");var bindHandlers=require("./bind_handlers");var Camera=require("./camera");var LngLat=require("../geo/lng_lat");var LngLatBounds=require("../geo/lng_lat_bounds");var Point=require("point-geometry");var AttributionControl=require("./control/attribution_control");var isSupported=require("mapbox-gl-supported");var defaultMinZoom=0;var defaultMaxZoom=20;var defaultOptions={center:[0,0],zoom:0,bearing:0,pitch:0,minZoom:defaultMinZoom,maxZoom:defaultMaxZoom,interactive:true,scrollZoom:true,boxZoom:true,dragRotate:true,dragPan:true,keyboard:true,doubleClickZoom:true,touchZoomRotate:true,bearingSnap:7,hash:false,attributionControl:true,failIfMajorPerformanceCaveat:false,preserveDrawingBuffer:false,trackResize:true};var Map=module.exports=function(options){options=util.extend({},defaultOptions,options);this._interactive=options.interactive;this._failIfMajorPerformanceCaveat=options.failIfMajorPerformanceCaveat;this._preserveDrawingBuffer=options.preserveDrawingBuffer;this._trackResize=options.trackResize;this._bearingSnap=options.bearingSnap;if(typeof options.container==="string"){this._container=window.document.getElementById(options.container)}else{this._container=options.container}this.animationLoop=new AnimationLoop;this.transform=new Transform(options.minZoom,options.maxZoom);if(options.maxBounds){this.setMaxBounds(options.maxBounds)}util.bindAll(["_onWindowOnline","_onWindowResize","_contextLost","_contextRestored","_update","_render"],this);this._setupContainer();this._setupPainter();this.on("move",this._update.bind(this,false));this.on("zoom",this._update.bind(this,true));this.on("moveend",function(){this.animationLoop.set(300);this._rerender()}.bind(this));if(typeof window!=="undefined"){window.addEventListener("online",this._onWindowOnline,false);window.addEventListener("resize",this._onWindowResize,false)}bindHandlers(this,options);this._hash=options.hash&&(new Hash).addTo(this);if(!this._hash||!this._hash._onHashChange()){this.jumpTo({center:options.center,zoom:options.zoom,bearing:options.bearing,pitch:options.pitch})}this._classes=[];this.resize();if(options.classes)this.setClasses(options.classes);if(options.style)this.setStyle(options.style);if(options.attributionControl)this.addControl(new AttributionControl(options.attributionControl));this.on("style.load",function(){if(this.transform.unmodified){this.jumpTo(this.style.stylesheet)}this.style.update(this._classes,{transition:false})});this.on("data",function(event){if(event.dataType==="style"){this._update(true)}else{this._update()}})};util.extend(Map.prototype,Evented);util.extend(Map.prototype,Camera.prototype);util.extend(Map.prototype,{addControl:function(control){control.addTo(this);return this},addClass:function(klass,options){if(this._classes.indexOf(klass)>=0||klass==="")return this;this._classes.push(klass);this._classOptions=options;if(this.style)this.style.updateClasses();return this._update(true)},removeClass:function(klass,options){var i=this._classes.indexOf(klass);if(i<0||klass==="")return this;this._classes.splice(i,1);this._classOptions=options;if(this.style)this.style.updateClasses();return this._update(true)},setClasses:function(klasses,options){var uniqueClasses={};for(var i=0;i<klasses.length;i++){if(klasses[i]!=="")uniqueClasses[klasses[i]]=true}this._classes=Object.keys(uniqueClasses);this._classOptions=options;if(this.style)this.style.updateClasses();return this._update(true)},hasClass:function(klass){return this._classes.indexOf(klass)>=0},getClasses:function(){return this._classes},resize:function(){var dimensions=this._containerDimensions();var width=dimensions[0];var height=dimensions[1];this._resizeCanvas(width,height);this.transform.resize(width,height);this.painter.resize(width,height);return this.fire("movestart").fire("move").fire("resize").fire("moveend")},getBounds:function(){var bounds=new LngLatBounds(this.transform.pointLocation(new Point(0,this.transform.height)),this.transform.pointLocation(new Point(this.transform.width,0)));if(this.transform.angle||this.transform.pitch){bounds.extend(this.transform.pointLocation(new Point(this.transform.size.x,0)));bounds.extend(this.transform.pointLocation(new Point(0,this.transform.size.y)))}return bounds},setMaxBounds:function(lnglatbounds){if(lnglatbounds){var b=LngLatBounds.convert(lnglatbounds);this.transform.lngRange=[b.getWest(),b.getEast()];this.transform.latRange=[b.getSouth(),b.getNorth()];this.transform._constrain();this._update()}else if(lnglatbounds===null||lnglatbounds===undefined){this.transform.lngRange=[];this.transform.latRange=[];this._update()}return this},setMinZoom:function(minZoom){minZoom=minZoom===null||minZoom===undefined?defaultMinZoom:minZoom;if(minZoom>=defaultMinZoom&&minZoom<=this.transform.maxZoom){this.transform.minZoom=minZoom;this._update();if(this.getZoom()<minZoom)this.setZoom(minZoom);return this}else throw new Error("minZoom must be between "+defaultMinZoom+" and the current maxZoom, inclusive")},setMaxZoom:function(maxZoom){maxZoom=maxZoom===null||maxZoom===undefined?defaultMaxZoom:maxZoom;if(maxZoom>=this.transform.minZoom&&maxZoom<=defaultMaxZoom){this.transform.maxZoom=maxZoom;this._update();if(this.getZoom()>maxZoom)this.setZoom(maxZoom);return this}else throw new Error("maxZoom must be between the current minZoom and "+defaultMaxZoom+", inclusive")},project:function(lnglat){return this.transform.locationPoint(LngLat.convert(lnglat))},unproject:function(point){return this.transform.pointLocation(Point.convert(point))},queryRenderedFeatures:function(){var params={};var geometry;if(arguments.length===2){geometry=arguments[0];params=arguments[1]}else if(arguments.length===1&&isPointLike(arguments[0])){geometry=arguments[0]}else if(arguments.length===1){params=arguments[0]}return this.style.queryRenderedFeatures(this._makeQueryGeometry(geometry),params,this.transform.zoom,this.transform.angle);function isPointLike(input){return input instanceof Point||Array.isArray(input)}},_makeQueryGeometry:function(pointOrBox){if(pointOrBox===undefined){pointOrBox=[Point.convert([0,0]),Point.convert([this.transform.width,this.transform.height])]}var queryGeometry;var isPoint=pointOrBox instanceof Point||typeof pointOrBox[0]==="number";if(isPoint){var point=Point.convert(pointOrBox);queryGeometry=[point]}else{var box=[Point.convert(pointOrBox[0]),Point.convert(pointOrBox[1])];queryGeometry=[box[0],new Point(box[1].x,box[0].y),box[1],new Point(box[0].x,box[1].y),box[0]]}queryGeometry=queryGeometry.map(function(p){return this.transform.pointCoordinate(p)}.bind(this));return queryGeometry},querySourceFeatures:function(sourceID,params){return this.style.querySourceFeatures(sourceID,params)},setStyle:function(style){if(this.style){this.style.setEventedParent(null);this.style._remove();this.off("rotate",this.style._redoPlacement);this.off("pitch",this.style._redoPlacement)}if(!style){this.style=null;return this}else if(style instanceof Style){this.style=style}else{this.style=new Style(style,this)}this.style.setEventedParent(this,{style:this.style});this.on("rotate",this.style._redoPlacement);this.on("pitch",this.style._redoPlacement);return this},getStyle:function(){if(this.style){return this.style.serialize()}},addSource:function(id,source){this.style.addSource(id,source);this._update(true);return this},addSourceType:function(name,SourceType,callback){return this.style.addSourceType(name,SourceType,callback)},removeSource:function(id){this.style.removeSource(id);this._update(true);return this},getSource:function(id){return this.style.getSource(id)},addLayer:function(layer,before){this.style.addLayer(layer,before);this._update(true);return this},removeLayer:function(id){this.style.removeLayer(id);this._update(true);return this},getLayer:function(id){return this.style.getLayer(id)},setFilter:function(layer,filter){this.style.setFilter(layer,filter);this._update(true);return this},setLayerZoomRange:function(layerId,minzoom,maxzoom){this.style.setLayerZoomRange(layerId,minzoom,maxzoom);this._update(true);return this},getFilter:function(layer){return this.style.getFilter(layer)},setPaintProperty:function(layer,name,value,klass){this.style.setPaintProperty(layer,name,value,klass);this._update(true);return this},getPaintProperty:function(layer,name,klass){return this.style.getPaintProperty(layer,name,klass)},setLayoutProperty:function(layer,name,value){this.style.setLayoutProperty(layer,name,value);this._update(true);return this},getLayoutProperty:function(layer,name){return this.style.getLayoutProperty(layer,name)},setLight:function(lightOptions){this.style.setLight(lightOptions);this._update(true);return this},getLight:function(){return this.style.getLight()},getContainer:function(){return this._container},getCanvasContainer:function(){return this._canvasContainer},getCanvas:function(){return this._canvas},_containerDimensions:function(){var width=0;var height=0;if(this._container){width=this._container.offsetWidth||400;height=this._container.offsetHeight||300}return[width,height]},_setupContainer:function(){var container=this._container;container.classList.add("mapboxgl-map");var canvasContainer=this._canvasContainer=DOM.create("div","mapboxgl-canvas-container",container);if(this._interactive){canvasContainer.classList.add("mapboxgl-interactive")}this._canvas=DOM.create("canvas","mapboxgl-canvas",canvasContainer);this._canvas.style.position="absolute";this._canvas.addEventListener("webglcontextlost",this._contextLost,false);this._canvas.addEventListener("webglcontextrestored",this._contextRestored,false);this._canvas.setAttribute("tabindex",0);var dimensions=this._containerDimensions();this._resizeCanvas(dimensions[0],dimensions[1]);var controlContainer=this._controlContainer=DOM.create("div","mapboxgl-control-container",container);var corners=this._controlCorners={};["top-left","top-right","bottom-left","bottom-right"].forEach(function(pos){corners[pos]=DOM.create("div","mapboxgl-ctrl-"+pos,controlContainer)})},_resizeCanvas:function(width,height){var pixelRatio=window.devicePixelRatio||1;this._canvas.width=pixelRatio*width;this._canvas.height=pixelRatio*height;this._canvas.style.width=width+"px";this._canvas.style.height=height+"px"},_setupPainter:function(){var attributes=util.extend({failIfMajorPerformanceCaveat:this._failIfMajorPerformanceCaveat,preserveDrawingBuffer:this._preserveDrawingBuffer},isSupported.webGLContextAttributes);var gl=this._canvas.getContext("webgl",attributes)||this._canvas.getContext("experimental-webgl",attributes);if(!gl){this.fire("error",{error:new Error("Failed to initialize WebGL")});return}this.painter=new Painter(gl,this.transform)},_contextLost:function(event){event.preventDefault();if(this._frameId){browser.cancelFrame(this._frameId)}this.fire("webglcontextlost",{originalEvent:event})},_contextRestored:function(event){this._setupPainter();this.resize();this._update();this.fire("webglcontextrestored",{originalEvent:event})},loaded:function(){if(this._styleDirty||this._sourcesDirty)return false;if(!this.style||!this.style.loaded())return false;return true},_update:function(updateStyle){if(!this.style)return this;this._styleDirty=this._styleDirty||updateStyle;this._sourcesDirty=true;this._rerender();return this},_render:function(){if(this.style&&this._styleDirty){this._styleDirty=false;this.style.update(this._classes,this._classOptions);this._classOptions=null;this.style._recalculate(this.transform.zoom)}if(this.style&&this._sourcesDirty){this._sourcesDirty=false;this.style._updateSources(this.transform)}this.painter.render(this.style,{debug:this.showTileBoundaries,showOverdrawInspector:this._showOverdrawInspector,vertices:this.vertices,rotating:this.rotating,zooming:this.zooming});this.fire("render");if(this.loaded()&&!this._loaded){this._loaded=true;this.fire("load")}this._frameId=null;if(!this.animationLoop.stopped()){this._styleDirty=true}if(this._sourcesDirty||this._repaint||this._styleDirty){this._rerender()}return this},remove:function(){if(this._hash)this._hash.remove();browser.cancelFrame(this._frameId);this.setStyle(null);if(typeof window!=="undefined"){window.removeEventListener("resize",this._onWindowResize,false)}var extension=this.painter.gl.getExtension("WEBGL_lose_context");if(extension)extension.loseContext();removeNode(this._canvasContainer);removeNode(this._controlContainer);this._container.classList.remove("mapboxgl-map");this.fire("remove")},_rerender:function(){if(this.style&&!this._frameId){this._frameId=browser.frame(this._render)}},_onWindowOnline:function(){this._update()},_onWindowResize:function(){if(this._trackResize){this.stop().resize()._update()}}});util.extendAll(Map.prototype,{_showTileBoundaries:false,get showTileBoundaries(){return this._showTileBoundaries},set showTileBoundaries(value){if(this._showTileBoundaries===value)return;this._showTileBoundaries=value;this._update()},_showCollisionBoxes:false,get showCollisionBoxes(){return this._showCollisionBoxes},set showCollisionBoxes(value){if(this._showCollisionBoxes===value)return;this._showCollisionBoxes=value;this.style._redoPlacement()},_showOverdrawInspector:false,get showOverdrawInspector(){return this._showOverdrawInspector},set showOverdrawInspector(value){if(this._showOverdrawInspector===value)return;this._showOverdrawInspector=value;this._update()},_repaint:false,get repaint(){return this._repaint},set repaint(value){this._repaint=value;this._update()},_vertices:false,get vertices(){return this._vertices},set vertices(value){this._vertices=value;this._update()}});function removeNode(node){if(node.parentNode){node.parentNode.removeChild(node)}}},{"../geo/lng_lat":28,"../geo/lng_lat_bounds":29,"../geo/transform":30,"../render/painter":46,"../style/animation_loop":67,"../style/style":71,"../util/browser":120,"../util/dom":127,"../util/evented":128,"../util/util":137,"../util/window":122,"./bind_handlers":100,"./camera":101,"./control/attribution_control":102,"./hash":114,"mapbox-gl-supported":192,"point-geometry":196}],116:[function(require,module,exports){"use strict";module.exports=Marker;var DOM=require("../util/dom");var util=require("../util/util");var LngLat=require("../geo/lng_lat");var Point=require("point-geometry");var Popup=require("./popup");function Marker(element,options){this._offset=Point.convert(options&&options.offset||[0,0]);this._update=this._update.bind(this);this._onMapClick=this._onMapClick.bind(this);if(!element)element=DOM.create("div");element.classList.add("mapboxgl-marker");this._element=element;this._popup=null}Marker.prototype={addTo:function(map){this.remove();this._map=map;map.getCanvasContainer().appendChild(this._element);map.on("move",this._update);map.on("moveend",this._update);this._update();this._map.on("click",this._onMapClick);
return this},remove:function(){if(this._map){this._map.off("click",this._onMapClick);this._map.off("move",this._update);this._map.off("moveend",this._update);this._map=null}DOM.remove(this._element);if(this._popup)this._popup.remove();return this},getLngLat:function(){return this._lngLat},setLngLat:function(lnglat){this._lngLat=LngLat.convert(lnglat);if(this._popup)this._popup.setLngLat(this._lngLat);this._update();return this},getElement:function(){return this._element},setPopup:function(popup){var that=this;if(this._popup){this._popup.remove();this._popup=null}if(popup){this._popup=popup;this._popup.setLngLat(this._lngLat)}return this},_onMapClick:function(event){var targetElement=event.originalEvent.target;var element=this._element;if(this._popup&&(targetElement===element||element.contains(targetElement))){this.togglePopup()}},getPopup:function(){return this._popup},togglePopup:function(){var popup=this._popup;if(!popup)return;else if(popup.isOpen())popup.remove();else popup.addTo(this._map)},_update:function(e){if(!this._map)return;var pos=this._map.project(this._lngLat)._add(this._offset);if(!e||e.type==="moveend")pos=pos.round();DOM.setTransform(this._element,"translate("+pos.x+"px,"+pos.y+"px)")}}},{"../geo/lng_lat":28,"../util/dom":127,"../util/util":137,"./popup":117,"point-geometry":196}],117:[function(require,module,exports){"use strict";module.exports=Popup;var util=require("../util/util");var Evented=require("../util/evented");var DOM=require("../util/dom");var LngLat=require("../geo/lng_lat");var Point=require("point-geometry");var window=require("../util/window");function Popup(options){util.setOptions(this,options);util.bindAll(["_update","_onClickClose"],this)}Popup.prototype=util.inherit(Evented,{options:{closeButton:true,closeOnClick:true},addTo:function(map){this._map=map;this._map.on("move",this._update);if(this.options.closeOnClick){this._map.on("click",this._onClickClose)}this._update();return this},isOpen:function(){return!!this._map},remove:function(){if(this._content&&this._content.parentNode){this._content.parentNode.removeChild(this._content)}if(this._container){this._container.parentNode.removeChild(this._container);delete this._container}if(this._map){this._map.off("move",this._update);this._map.off("click",this._onClickClose);delete this._map}this.fire("close");return this},getLngLat:function(){return this._lngLat},setLngLat:function(lnglat){this._lngLat=LngLat.convert(lnglat);this._update();return this},setText:function(text){return this.setDOMContent(window.document.createTextNode(text))},setHTML:function(html){var frag=window.document.createDocumentFragment();var temp=window.document.createElement("body"),child;temp.innerHTML=html;while(true){child=temp.firstChild;if(!child)break;frag.appendChild(child)}return this.setDOMContent(frag)},setDOMContent:function(htmlNode){this._createContent();this._content.appendChild(htmlNode);this._update();return this},_createContent:function(){if(this._content&&this._content.parentNode){this._content.parentNode.removeChild(this._content)}this._content=DOM.create("div","mapboxgl-popup-content",this._container);if(this.options.closeButton){this._closeButton=DOM.create("button","mapboxgl-popup-close-button",this._content);this._closeButton.type="button";this._closeButton.innerHTML="&#215;";this._closeButton.addEventListener("click",this._onClickClose)}},_update:function(){if(!this._map||!this._lngLat||!this._content){return}if(!this._container){this._container=DOM.create("div","mapboxgl-popup",this._map.getContainer());this._tip=DOM.create("div","mapboxgl-popup-tip",this._container);this._container.appendChild(this._content)}var anchor=this.options.anchor;var offset=normalizeOffset(this.options.offset);var pos=this._map.project(this._lngLat).round();if(!anchor){var width=this._container.offsetWidth,height=this._container.offsetHeight;if(pos.y+offset.bottom.y<height){anchor=["top"]}else if(pos.y>this._map.transform.height-height){anchor=["bottom"]}else{anchor=[]}if(pos.x<width/2){anchor.push("left")}else if(pos.x>this._map.transform.width-width/2){anchor.push("right")}if(anchor.length===0){anchor="bottom"}else{anchor=anchor.join("-")}}var offsetedPos=pos.add(offset[anchor]);var anchorTranslate={top:"translate(-50%,0)","top-left":"translate(0,0)","top-right":"translate(-100%,0)",bottom:"translate(-50%,-100%)","bottom-left":"translate(0,-100%)","bottom-right":"translate(-100%,-100%)",left:"translate(0,-50%)",right:"translate(-100%,-50%)"};var classList=this._container.classList;for(var key in anchorTranslate){classList.remove("mapboxgl-popup-anchor-"+key)}classList.add("mapboxgl-popup-anchor-"+anchor);DOM.setTransform(this._container,anchorTranslate[anchor]+" translate("+offsetedPos.x+"px,"+offsetedPos.y+"px)")},_onClickClose:function(){this.remove()}});function normalizeOffset(offset){if(!offset){return normalizeOffset(new Point(0,0))}else if(typeof offset==="number"){var cornerOffset=Math.round(Math.sqrt(.5*Math.pow(offset,2)));return{top:new Point(0,offset),"top-left":new Point(cornerOffset,cornerOffset),"top-right":new Point(-cornerOffset,cornerOffset),bottom:new Point(0,-offset),"bottom-left":new Point(cornerOffset,-cornerOffset),"bottom-right":new Point(-cornerOffset,-cornerOffset),left:new Point(offset,0),right:new Point(-offset,0)}}else if(isPointLike(offset)){var convertedOffset=Point.convert(offset);return{top:convertedOffset,"top-left":convertedOffset,"top-right":convertedOffset,bottom:convertedOffset,"bottom-left":convertedOffset,"bottom-right":convertedOffset,left:convertedOffset,right:convertedOffset}}else{return{top:Point.convert(offset["top"]),"top-left":Point.convert(offset["top-left"]),"top-right":Point.convert(offset["top-right"]),bottom:Point.convert(offset["bottom"]),"bottom-left":Point.convert(offset["bottom-left"]),"bottom-right":Point.convert(offset["bottom-right"]),left:Point.convert(offset["left"]),right:Point.convert(offset["right"])}}}function isPointLike(input){return input instanceof Point||Array.isArray(input)}},{"../geo/lng_lat":28,"../util/dom":127,"../util/evented":128,"../util/util":137,"../util/window":122,"point-geometry":196}],118:[function(require,module,exports){"use strict";module.exports=Actor;function Actor(target,parent,mapId){this.target=target;this.parent=parent;this.mapId=mapId;this.callbacks={};this.callbackID=0;this.receive=this.receive.bind(this);this.target.addEventListener("message",this.receive,false)}Actor.prototype.send=function(type,data,callback,buffers,targetMapId){var id=callback?this.mapId+":"+this.callbackID++:null;if(callback)this.callbacks[id]=callback;this.target.postMessage({targetMapId:targetMapId,sourceMapId:this.mapId,type:type,id:String(id),data:data},buffers)};Actor.prototype.receive=function(message){var data=message.data,id=data.id,callback;if(data.targetMapId&&this.mapId!==data.targetMapId)return;if(data.type==="<response>"){callback=this.callbacks[data.id];delete this.callbacks[data.id];if(callback)callback(data.error||null,data.data)}else if(typeof data.id!=="undefined"&&this.parent[data.type]){this.parent[data.type](data.sourceMapId,data.data,done.bind(this))}else if(typeof data.id!=="undefined"&&this.parent.getWorkerSource){var keys=data.type.split(".");var workerSource=this.parent.getWorkerSource(data.sourceMapId,keys[0]);workerSource[keys[1]](data.data,done.bind(this))}else{this.parent[data.type](data.data)}function done(err,data,buffers){this.target.postMessage({sourceMapId:this.mapId,type:"<response>",id:String(id),error:err?String(err):null,data:data},buffers)}};Actor.prototype.remove=function(){this.target.removeEventListener("message",this.receive,false)}},{}],119:[function(require,module,exports){"use strict";var window=require("./window");exports.getJSON=function(url,callback){var xhr=new window.XMLHttpRequest;xhr.open("GET",url,true);xhr.setRequestHeader("Accept","application/json");xhr.onerror=function(e){callback(e)};xhr.onload=function(){if(xhr.status>=200&&xhr.status<300&&xhr.response){var data;try{data=JSON.parse(xhr.response)}catch(err){return callback(err)}callback(null,data)}else{callback(new Error(xhr.statusText))}};xhr.send();return xhr};exports.getArrayBuffer=function(url,callback){var xhr=new window.XMLHttpRequest;xhr.open("GET",url,true);xhr.responseType="arraybuffer";xhr.onerror=function(e){callback(e)};xhr.onload=function(){if(xhr.status>=200&&xhr.status<300&&xhr.response){callback(null,xhr.response)}else{callback(new Error(xhr.statusText))}};xhr.send();return xhr};function sameOrigin(url){var a=window.document.createElement("a");a.href=url;return a.protocol===window.document.location.protocol&&a.host===window.document.location.host}exports.getImage=function(url,callback){return exports.getArrayBuffer(url,function(err,imgData){if(err)return callback(err);var img=new window.Image;img.onload=function(){callback(null,img);(window.URL||window.webkitURL).revokeObjectURL(img.src)};var blob=new window.Blob([new Uint8Array(imgData)],{type:"image/png"});img.src=(window.URL||window.webkitURL).createObjectURL(blob);img.getData=function(){var canvas=window.document.createElement("canvas");var context=canvas.getContext("2d");canvas.width=img.width;canvas.height=img.height;context.drawImage(img,0,0);return context.getImageData(0,0,img.width,img.height).data};return img})};exports.getVideo=function(urls,callback){var video=window.document.createElement("video");video.onloadstart=function(){callback(null,video)};for(var i=0;i<urls.length;i++){var s=window.document.createElement("source");if(!sameOrigin(urls[i])){video.crossOrigin="Anonymous"}s.src=urls[i];video.appendChild(s)}video.getData=function(){return video};return video}},{"./window":122}],120:[function(require,module,exports){"use strict";var window=require("./window");module.exports.now=function(){if(window.performance&&window.performance.now){return window.performance.now.bind(window.performance)}else{return Date.now.bind(Date)}}();var frame=window.requestAnimationFrame||window.mozRequestAnimationFrame||window.webkitRequestAnimationFrame||window.msRequestAnimationFrame;exports.frame=function(fn){return frame(fn)};var cancel=window.cancelAnimationFrame||window.mozCancelAnimationFrame||window.webkitCancelAnimationFrame||window.msCancelAnimationFrame;exports.cancelFrame=function(id){cancel(id)};exports.timed=function(fn,dur,ctx){if(!dur){fn.call(ctx,1);return null}var abort=false,start=module.exports.now();function tick(now){if(abort)return;now=module.exports.now();if(now>=start+dur){fn.call(ctx,1)}else{fn.call(ctx,(now-start)/dur);exports.frame(tick)}}exports.frame(tick);return function(){abort=true}};exports.supported=require("mapbox-gl-supported");exports.hardwareConcurrency=window.navigator.hardwareConcurrency||4;Object.defineProperty(exports,"devicePixelRatio",{get:function(){return window.devicePixelRatio}});exports.supportsWebp=false;var webpImgTest=window.document.createElement("img");webpImgTest.onload=function(){exports.supportsWebp=true};webpImgTest.src="data:image/webp;base64,UklGRh4AAABXRUJQVlA4TBEAAAAvAQAAAAfQ//73v/+BiOh/AAA=";exports.supportsGeolocation=!!window.navigator.geolocation},{"./window":122,"mapbox-gl-supported":192}],121:[function(require,module,exports){"use strict";var WebWorkify=require("webworkify");var window=require("../window");var workerURL=window.URL.createObjectURL(new WebWorkify(require("../../source/worker"),{bare:true}));module.exports=function(){return new window.Worker(workerURL)}},{"../../source/worker":65,"../window":122,webworkify:213}],122:[function(require,module,exports){"use strict";module.exports=self},{}],123:[function(require,module,exports){"use strict";var quickselect=require("quickselect");var calculateSignedArea=require("./util").calculateSignedArea;module.exports=function classifyRings(rings,maxRings){var len=rings.length;if(len<=1)return[rings];var polygons=[],polygon,ccw;for(var i=0;i<len;i++){var area=calculateSignedArea(rings[i]);if(area===0)continue;rings[i].area=Math.abs(area);if(ccw===undefined)ccw=area<0;if(ccw===area<0){if(polygon)polygons.push(polygon);polygon=[rings[i]]}else{polygon.push(rings[i])}}if(polygon)polygons.push(polygon);if(maxRings>1){for(var j=0;j<polygons.length;j++){if(polygons[j].length<=maxRings)continue;quickselect(polygons[j],maxRings,1,polygons[j].length-1,compareAreas);polygons[j]=polygons[j].slice(0,maxRings)}}return polygons};function compareAreas(a,b){return b.area-a.area}},{"./util":137,quickselect:197}],124:[function(require,module,exports){"use strict";module.exports={API_URL:"https://api.mapbox.com",REQUIRE_ACCESS_TOKEN:true}},{}],125:[function(require,module,exports){"use strict";module.exports=DictionaryCoder;function DictionaryCoder(strings){this._stringToNumber={};this._numberToString=[];for(var i=0;i<strings.length;i++){var string=strings[i];this._stringToNumber[string]=i;this._numberToString[i]=string}}DictionaryCoder.prototype.encode=function(string){return this._stringToNumber[string]};DictionaryCoder.prototype.decode=function(n){return this._numberToString[n]}},{}],126:[function(require,module,exports){"use strict";var util=require("./util");var Actor=require("./actor");module.exports=Dispatcher;function Dispatcher(workerPool,parent){this.workerPool=workerPool;this.actors=[];this.currentActor=0;this.id=util.uniqueId();var workers=this.workerPool.acquire(this.id);for(var i=0;i<workers.length;i++){var worker=workers[i];var actor=new Actor(worker,parent,this.id);actor.name="Worker "+i;this.actors.push(actor)}}Dispatcher.prototype={broadcast:function(type,data,cb){cb=cb||function(){};util.asyncAll(this.actors,function(actor,done){actor.send(type,data,done)},cb)},send:function(type,data,callback,targetID,buffers){if(typeof targetID!=="number"||isNaN(targetID)){targetID=this.currentActor=(this.currentActor+1)%this.actors.length}this.actors[targetID].send(type,data,callback,buffers);return targetID},remove:function(){this.actors.forEach(function(actor){actor.remove()});this.actors=[];this.workerPool.release(this.id)}}},{"./actor":118,"./util":137}],127:[function(require,module,exports){"use strict";var Point=require("point-geometry");var window=require("./window");exports.create=function(tagName,className,container){var el=window.document.createElement(tagName);if(className)el.className=className;if(container)container.appendChild(el);return el};var docStyle=window.document.documentElement.style;function testProp(props){for(var i=0;i<props.length;i++){if(props[i]in docStyle){return props[i]}}return props[0]}var selectProp=testProp(["userSelect","MozUserSelect","WebkitUserSelect","msUserSelect"]),userSelect;exports.disableDrag=function(){if(selectProp){userSelect=docStyle[selectProp];docStyle[selectProp]="none"}};exports.enableDrag=function(){if(selectProp){docStyle[selectProp]=userSelect}};var transformProp=testProp(["transform","WebkitTransform"]);exports.setTransform=function(el,value){el.style[transformProp]=value};function suppressClick(e){e.preventDefault();e.stopPropagation();window.removeEventListener("click",suppressClick,true)}exports.suppressClick=function(){window.addEventListener("click",suppressClick,true);window.setTimeout(function(){window.removeEventListener("click",suppressClick,true)},0)};exports.mousePos=function(el,e){var rect=el.getBoundingClientRect();e=e.touches?e.touches[0]:e;return new Point(e.clientX-rect.left-el.clientLeft,e.clientY-rect.top-el.clientTop)};exports.touchPos=function(el,e){var rect=el.getBoundingClientRect(),points=[];var touches=e.type==="touchend"?e.changedTouches:e.touches;for(var i=0;i<touches.length;i++){points.push(new Point(touches[i].clientX-rect.left-el.clientLeft,touches[i].clientY-rect.top-el.clientTop))}return points};exports.remove=function(node){if(node.parentNode){node.parentNode.removeChild(node)}}},{"./window":122,"point-geometry":196}],128:[function(require,module,exports){"use strict";var util=require("./util");var Evented={on:function(type,listener){this._listeners=this._listeners||{};this._listeners[type]=this._listeners[type]||[];this._listeners[type].push(listener);return this},off:function(type,listener){if(this._listeners&&this._listeners[type]){var index=this._listeners[type].indexOf(listener);if(index!==-1){this._listeners[type].splice(index,1)}}return this},once:function(type,listener){var wrapper=function(data){this.off(type,wrapper);listener.call(this,data)}.bind(this);this.on(type,wrapper);return this},fire:function(type,data){if(this.listens(type)){data=util.extend({},data,{type:type,target:this});var listeners=this._listeners&&this._listeners[type]?this._listeners[type].slice():[];for(var i=0;i<listeners.length;i++){listeners[i].call(this,data)}if(this._eventedParent){this._eventedParent.fire(type,util.extend({},data,this._eventedParentData))}}else if(util.endsWith(type,"error")){console.error(data&&data.error||data||"Empty error event")}return this},listens:function(type){return this._listeners&&this._listeners[type]||this._eventedParent&&this._eventedParent.listens(type)},setEventedParent:function(parent,data){this._eventedParent=parent;this._eventedParentData=data;return this}};module.exports=Evented},{"./util":137}],129:[function(require,module,exports){"use strict";var Queue=require("tinyqueue");var Point=require("point-geometry");var distToSegmentSquared=require("./intersection_tests").distToSegmentSquared;module.exports=function(polygonRings,precision,debug){precision=precision||1;var minX,minY,maxX,maxY;var outerRing=polygonRings[0];for(var i=0;i<outerRing.length;i++){var p=outerRing[i];if(!i||p.x<minX)minX=p.x;if(!i||p.y<minY)minY=p.y;if(!i||p.x>maxX)maxX=p.x;if(!i||p.y>maxY)maxY=p.y}var width=maxX-minX;var height=maxY-minY;var cellSize=Math.min(width,height);var h=cellSize/2;var cellQueue=new Queue(null,compareMax);for(var x=minX;x<maxX;x+=cellSize){for(var y=minY;y<maxY;y+=cellSize){cellQueue.push(new Cell(x+h,y+h,h,polygonRings))}}var bestCell=getCentroidCell(polygonRings);var numProbes=cellQueue.length;while(cellQueue.length){var cell=cellQueue.pop();if(cell.d>bestCell.d){bestCell=cell;if(debug)console.log("found best %d after %d probes",Math.round(1e4*cell.d)/1e4,numProbes)}if(cell.max-bestCell.d<=precision)continue;h=cell.h/2;cellQueue.push(new Cell(cell.p.x-h,cell.p.y-h,h,polygonRings));cellQueue.push(new Cell(cell.p.x+h,cell.p.y-h,h,polygonRings));cellQueue.push(new Cell(cell.p.x-h,cell.p.y+h,h,polygonRings));cellQueue.push(new Cell(cell.p.x+h,cell.p.y+h,h,polygonRings));numProbes+=4}if(debug){console.log("num probes: "+numProbes);console.log("best distance: "+bestCell.d)}return bestCell.p};function compareMax(a,b){return b.max-a.max}function Cell(x,y,h,polygon){this.p=new Point(x,y);this.h=h;this.d=pointToPolygonDist(this.p,polygon);this.max=this.d+this.h*Math.SQRT2}function pointToPolygonDist(p,polygon){var inside=false;var minDistSq=Infinity;for(var k=0;k<polygon.length;k++){var ring=polygon[k];for(var i=0,len=ring.length,j=len-1;i<len;j=i++){var a=ring[i];var b=ring[j];if(a.y>p.y!==b.y>p.y&&p.x<(b.x-a.x)*(p.y-a.y)/(b.y-a.y)+a.x)inside=!inside;minDistSq=Math.min(minDistSq,distToSegmentSquared(p,a,b))}}return(inside?1:-1)*Math.sqrt(minDistSq)}function getCentroidCell(polygon){var area=0;var x=0;var y=0;var points=polygon[0];for(var i=0,len=points.length,j=len-1;i<len;j=i++){var a=points[i];var b=points[j];var f=a.x*b.y-b.x*a.y;x+=(a.x+b.x)*f;y+=(a.y+b.y)*f;area+=f*3}return new Cell(x/area,y/area,0,polygon)}},{"./intersection_tests":132,"point-geometry":196,tinyqueue:204}],130:[function(require,module,exports){"use strict";module.exports=Glyphs;function Glyphs(pbf,end){this.stacks=pbf.readFields(readFontstacks,[],end)}function readFontstacks(tag,stacks,pbf){if(tag===1){var fontstack=pbf.readMessage(readFontstack,{glyphs:{}});stacks.push(fontstack)}}function readFontstack(tag,fontstack,pbf){if(tag===1)fontstack.name=pbf.readString();else if(tag===2)fontstack.range=pbf.readString();else if(tag===3){var glyph=pbf.readMessage(readGlyph,{});fontstack.glyphs[glyph.id]=glyph}}function readGlyph(tag,glyph,pbf){if(tag===1)glyph.id=pbf.readVarint();else if(tag===2)glyph.bitmap=pbf.readBytes();else if(tag===3)glyph.width=pbf.readVarint();else if(tag===4)glyph.height=pbf.readVarint();else if(tag===5)glyph.left=pbf.readSVarint();else if(tag===6)glyph.top=pbf.readSVarint();else if(tag===7)glyph.advance=pbf.readVarint()}},{}],131:[function(require,module,exports){"use strict";module.exports=interpolate;function interpolate(a,b,t){return a*(1-t)+b*t}interpolate.number=interpolate;interpolate.vec2=function(from,to,t){return[interpolate(from[0],to[0],t),interpolate(from[1],to[1],t)]};interpolate.color=function(from,to,t){return[interpolate(from[0],to[0],t),interpolate(from[1],to[1],t),interpolate(from[2],to[2],t),interpolate(from[3],to[3],t)]};interpolate.array=function(from,to,t){return from.map(function(d,i){return interpolate(d,to[i],t)})}},{}],132:[function(require,module,exports){"use strict";var isCounterClockwise=require("./util").isCounterClockwise;module.exports={multiPolygonIntersectsBufferedMultiPoint:multiPolygonIntersectsBufferedMultiPoint,multiPolygonIntersectsMultiPolygon:multiPolygonIntersectsMultiPolygon,multiPolygonIntersectsBufferedMultiLine:multiPolygonIntersectsBufferedMultiLine,distToSegmentSquared:distToSegmentSquared};function multiPolygonIntersectsBufferedMultiPoint(multiPolygon,rings,radius){for(var j=0;j<multiPolygon.length;j++){var polygon=multiPolygon[j];for(var i=0;i<rings.length;i++){var ring=rings[i];for(var k=0;k<ring.length;k++){var point=ring[k];if(polygonContainsPoint(polygon,point))return true;if(pointIntersectsBufferedLine(point,polygon,radius))return true}}}return false}function multiPolygonIntersectsMultiPolygon(multiPolygonA,multiPolygonB){if(multiPolygonA.length===1&&multiPolygonA[0].length===1){return multiPolygonContainsPoint(multiPolygonB,multiPolygonA[0][0])}for(var m=0;m<multiPolygonB.length;m++){var ring=multiPolygonB[m];for(var n=0;n<ring.length;n++){if(multiPolygonContainsPoint(multiPolygonA,ring[n]))return true}}for(var j=0;j<multiPolygonA.length;j++){var polygon=multiPolygonA[j];for(var i=0;i<polygon.length;i++){if(multiPolygonContainsPoint(multiPolygonB,polygon[i]))return true}for(var k=0;k<multiPolygonB.length;k++){if(lineIntersectsLine(polygon,multiPolygonB[k]))return true}}return false}function multiPolygonIntersectsBufferedMultiLine(multiPolygon,multiLine,radius){for(var i=0;i<multiLine.length;i++){var line=multiLine[i];for(var j=0;j<multiPolygon.length;j++){var polygon=multiPolygon[j];if(polygon.length>=3){for(var k=0;k<line.length;k++){if(polygonContainsPoint(polygon,line[k]))return true}}if(lineIntersectsBufferedLine(polygon,line,radius))return true}}return false}function lineIntersectsBufferedLine(lineA,lineB,radius){if(lineA.length>1){if(lineIntersectsLine(lineA,lineB))return true;for(var j=0;j<lineB.length;j++){if(pointIntersectsBufferedLine(lineB[j],lineA,radius))return true}}for(var k=0;k<lineA.length;k++){if(pointIntersectsBufferedLine(lineA[k],lineB,radius))return true}return false}function lineIntersectsLine(lineA,lineB){for(var i=0;i<lineA.length-1;i++){var a0=lineA[i];var a1=lineA[i+1];for(var j=0;j<lineB.length-1;j++){var b0=lineB[j];var b1=lineB[j+1];if(lineSegmentIntersectsLineSegment(a0,a1,b0,b1))return true}}return false}function lineSegmentIntersectsLineSegment(a0,a1,b0,b1){return isCounterClockwise(a0,b0,b1)!==isCounterClockwise(a1,b0,b1)&&isCounterClockwise(a0,a1,b0)!==isCounterClockwise(a0,a1,b1)}function pointIntersectsBufferedLine(p,line,radius){var radiusSquared=radius*radius;if(line.length===1)return p.distSqr(line[0])<radiusSquared;for(var i=1;i<line.length;i++){var v=line[i-1],w=line[i];if(distToSegmentSquared(p,v,w)<radiusSquared)return true}return false}function distToSegmentSquared(p,v,w){var l2=v.distSqr(w);if(l2===0)return p.distSqr(v);var t=((p.x-v.x)*(w.x-v.x)+(p.y-v.y)*(w.y-v.y))/l2;if(t<0)return p.distSqr(v);if(t>1)return p.distSqr(w);return p.distSqr(w.sub(v)._mult(t)._add(v))}function multiPolygonContainsPoint(rings,p){var c=false,ring,p1,p2;for(var k=0;k<rings.length;k++){ring=rings[k];for(var i=0,j=ring.length-1;i<ring.length;j=i++){p1=ring[i];p2=ring[j];if(p1.y>p.y!==p2.y>p.y&&p.x<(p2.x-p1.x)*(p.y-p1.y)/(p2.y-p1.y)+p1.x){c=!c}}}return c}function polygonContainsPoint(ring,p){var c=false;for(var i=0,j=ring.length-1;i<ring.length;j=i++){var p1=ring[i];var p2=ring[j];if(p1.y>p.y!==p2.y>p.y&&p.x<(p2.x-p1.x)*(p.y-p1.y)/(p2.y-p1.y)+p1.x){c=!c}}return c}},{"./util":137}],133:[function(require,module,exports){"use strict";module.exports=LRUCache;function LRUCache(max,onRemove){this.max=max;this.onRemove=onRemove;this.reset()}LRUCache.prototype.reset=function(){for(var key in this.data){this.onRemove(this.data[key])}this.data={};this.order=[];return this};LRUCache.prototype.add=function(key,data){if(this.has(key)){this.order.splice(this.order.indexOf(key),1);this.data[key]=data;this.order.push(key)}else{this.data[key]=data;this.order.push(key);if(this.order.length>this.max){var removedData=this.get(this.order[0]);if(removedData)this.onRemove(removedData)}}return this};LRUCache.prototype.has=function(key){return key in this.data};LRUCache.prototype.keys=function(){return this.order};LRUCache.prototype.get=function(key){if(!this.has(key)){return null}var data=this.data[key];delete this.data[key];this.order.splice(this.order.indexOf(key),1);return data};LRUCache.prototype.setMaxSize=function(max){this.max=max;while(this.order.length>this.max){var removedData=this.get(this.order[0]);if(removedData)this.onRemove(removedData)}return this}},{}],134:[function(require,module,exports){"use strict";var config=require("./config");var browser=require("./browser");var URL=require("url");var util=require("./util");function makeAPIURL(path,query,accessToken){accessToken=accessToken||config.ACCESS_TOKEN;if(!accessToken&&config.REQUIRE_ACCESS_TOKEN){throw new Error("An API access token is required to use Mapbox GL. "+"See https://www.mapbox.com/developers/api/#access-tokens")}var url=config.API_URL+path+(query?"?"+query:"");if(config.REQUIRE_ACCESS_TOKEN){if(accessToken[0]==="s"){throw new Error("Use a public access token (pk.*) with Mapbox GL JS, not a secret access token (sk.*). "+"See https://www.mapbox.com/developers/api/#access-tokens")}url+=(query?"&":"?")+"access_token="+accessToken}return url}module.exports.isMapboxURL=function(url){return URL.parse(url).protocol==="mapbox:"};module.exports.normalizeStyleURL=function(url,accessToken){var urlObject=URL.parse(url);if(urlObject.protocol!=="mapbox:"){return url}else{return makeAPIURL("/styles/v1"+urlObject.pathname,urlObject.query,accessToken)}};module.exports.normalizeSourceURL=function(url,accessToken){var urlObject=URL.parse(url);if(urlObject.protocol!=="mapbox:"){return url}else{var sources=url.match(/mapbox:\/\/([^?]+)/)[1];return makeAPIURL("/v4/"+sources+".json",urlObject.query,accessToken)+"&secure"}};module.exports.normalizeGlyphsURL=function(url,accessToken){var urlObject=URL.parse(url);if(urlObject.protocol!=="mapbox:"){return url}else{var user=urlObject.pathname.split("/")[1];return makeAPIURL("/fonts/v1/"+user+"/{fontstack}/{range}.pbf",urlObject.query,accessToken)}};module.exports.normalizeSpriteURL=function(url,format,extension,accessToken){var urlObject=URL.parse(url);if(urlObject.protocol!=="mapbox:"){urlObject.pathname+=format+extension;return URL.format(urlObject)}else{return makeAPIURL("/styles/v1"+urlObject.pathname+"/sprite"+format+extension,urlObject.query,accessToken)}};module.exports.normalizeTileURL=function(tileURL,sourceURL,tileSize){var tileURLObject=URL.parse(tileURL,true);if(!sourceURL)return tileURL;var sourceURLObject=URL.parse(sourceURL);if(sourceURLObject.protocol!=="mapbox:")return tileURL;var extension=browser.supportsWebp?".webp":"$1";var resolution=browser.devicePixelRatio>=2||tileSize===512?"@2x":"";return URL.format({protocol:tileURLObject.protocol,hostname:tileURLObject.hostname,pathname:tileURLObject.pathname.replace(/(\.(?:png|jpg)\d*)/,resolution+extension),query:replaceTempAccessToken(tileURLObject.query)})};function replaceTempAccessToken(query){if(query.access_token&&query.access_token.slice(0,3)==="tk."){return util.extend({},query,{access_token:config.ACCESS_TOKEN})}else{return query}}},{"./browser":120,"./config":124,"./util":137,url:7}],135:[function(require,module,exports){"use strict";module.exports=StructArrayType;var viewTypes={Int8:Int8Array,Uint8:Uint8Array,Uint8Clamped:Uint8ClampedArray,Int16:Int16Array,Uint16:Uint16Array,Int32:Int32Array,Uint32:Uint32Array,Float32:Float32Array,Float64:Float64Array};var structArrayTypeCache={};function StructArrayType(options){var key=JSON.stringify(options);if(structArrayTypeCache[key]){return structArrayTypeCache[key]}if(options.alignment===undefined)options.alignment=1;function StructType(){Struct.apply(this,arguments)}StructType.prototype=Object.create(Struct.prototype);var offset=0;var maxSize=0;var usedTypes=["Uint8"];StructType.prototype.members=options.members.map(function(member){member={name:member.name,type:member.type,components:member.components||1};if(usedTypes.indexOf(member.type)<0)usedTypes.push(member.type);var typeSize=sizeOf(member.type);maxSize=Math.max(maxSize,typeSize);member.offset=offset=align(offset,Math.max(options.alignment,typeSize));for(var c=0;c<member.components;c++){Object.defineProperty(StructType.prototype,member.name+(member.components===1?"":c),{get:createGetter(member,c),set:createSetter(member,c)})}offset+=typeSize*member.components;return member});StructType.prototype.alignment=options.alignment;StructType.prototype.size=align(offset,Math.max(maxSize,options.alignment));function StructArrayType(){StructArray.apply(this,arguments);this.members=StructType.prototype.members}StructArrayType.serialize=serializeStructArrayType;StructArrayType.prototype=Object.create(StructArray.prototype);StructArrayType.prototype.StructType=StructType;StructArrayType.prototype.bytesPerElement=StructType.prototype.size;StructArrayType.prototype.emplaceBack=createEmplaceBack(StructType.prototype.members,StructType.prototype.size);StructArrayType.prototype._usedTypes=usedTypes;structArrayTypeCache[key]=StructArrayType;return StructArrayType}function serializeStructArrayType(){return{members:this.prototype.StructType.prototype.members,alignment:this.prototype.StructType.prototype.alignment,bytesPerElement:this.prototype.bytesPerElement}}function align(offset,size){return Math.ceil(offset/size)*size}function sizeOf(type){return viewTypes[type].BYTES_PER_ELEMENT}function getArrayViewName(type){return type.toLowerCase()}function createEmplaceBack(members,bytesPerElement){var usedTypeSizes=[];var argNames=[];var body=""+"var i = this.length;\n"+"this.resize(this.length + 1);\n";for(var m=0;m<members.length;m++){var member=members[m];var size=sizeOf(member.type);if(usedTypeSizes.indexOf(size)<0){usedTypeSizes.push(size);body+="var o"+size.toFixed(0)+" = i * "+(bytesPerElement/size).toFixed(0)+";\n"}for(var c=0;c<member.components;c++){var argName="v"+argNames.length;var index="o"+size.toFixed(0)+" + "+(member.offset/size+c).toFixed(0);body+="this."+getArrayViewName(member.type)+"["+index+"] = "+argName+";\n";argNames.push(argName)}}body+="return i;";return new Function(argNames,body)}function createMemberComponentString(member,component){var elementOffset="this._pos"+sizeOf(member.type).toFixed(0);var componentOffset=(member.offset/sizeOf(member.type)+component).toFixed(0);var index=elementOffset+" + "+componentOffset;return"this._structArray."+getArrayViewName(member.type)+"["+index+"]"}function createGetter(member,c){return new Function([],"return "+createMemberComponentString(member,c)+";")}function createSetter(member,c){return new Function(["x"],createMemberComponentString(member,c)+" = x;")}function Struct(structArray,index){this._structArray=structArray;this._pos1=index*this.size;this._pos2=this._pos1/2;this._pos4=this._pos1/4;this._pos8=this._pos1/8}function StructArray(serialized){if(serialized!==undefined){this.arrayBuffer=serialized.arrayBuffer;this.length=serialized.length;
this.capacity=this.arrayBuffer.byteLength/this.bytesPerElement;this._refreshViews()}else{this.capacity=-1;this.resize(0)}}StructArray.prototype.DEFAULT_CAPACITY=128;StructArray.prototype.RESIZE_MULTIPLIER=5;StructArray.prototype.serialize=function(){this.trim();return{length:this.length,arrayBuffer:this.arrayBuffer}};StructArray.prototype.get=function(index){return new this.StructType(this,index)};StructArray.prototype.trim=function(){if(this.length!==this.capacity){this.capacity=this.length;this.arrayBuffer=this.arrayBuffer.slice(0,this.length*this.bytesPerElement);this._refreshViews()}};StructArray.prototype.resize=function(n){this.length=n;if(n>this.capacity){this.capacity=Math.max(n,Math.floor(this.capacity*this.RESIZE_MULTIPLIER),this.DEFAULT_CAPACITY);this.arrayBuffer=new ArrayBuffer(this.capacity*this.bytesPerElement);var oldUint8Array=this.uint8;this._refreshViews();if(oldUint8Array)this.uint8.set(oldUint8Array)}};StructArray.prototype._refreshViews=function(){for(var t=0;t<this._usedTypes.length;t++){var type=this._usedTypes[t];this[getArrayViewName(type)]=new viewTypes[type](this.arrayBuffer)}};StructArray.prototype.toArray=function(startIndex,endIndex){var array=[];for(var i=startIndex;i<endIndex;i++){var struct=this.get(i);array.push(struct)}return array}},{}],136:[function(require,module,exports){"use strict";module.exports=resolveTokens;function resolveTokens(properties,text){return text.replace(/{([^{}]+)}/g,function(match,key){return key in properties?properties[key]:""})}},{}],137:[function(require,module,exports){"use strict";var UnitBezier=require("unitbezier");var Coordinate=require("../geo/coordinate");exports.easeCubicInOut=function(t){if(t<=0)return 0;if(t>=1)return 1;var t2=t*t,t3=t2*t;return 4*(t<.5?t3:3*(t-t2)+t3-.75)};exports.bezier=function(p1x,p1y,p2x,p2y){var bezier=new UnitBezier(p1x,p1y,p2x,p2y);return function(t){return bezier.solve(t)}};exports.ease=exports.bezier(.25,.1,.25,1);exports.clamp=function(n,min,max){return Math.min(max,Math.max(min,n))};exports.wrap=function(n,min,max){var d=max-min;var w=((n-min)%d+d)%d+min;return w===min?max:w};exports.coalesce=function(){for(var i=0;i<arguments.length;i++){var arg=arguments[i];if(arg!==null&&arg!==undefined)return arg}};exports.asyncAll=function(array,fn,callback){if(!array.length){return callback(null,[])}var remaining=array.length;var results=new Array(array.length);var error=null;array.forEach(function(item,i){fn(item,function(err,result){if(err)error=err;results[i]=result;if(--remaining===0)callback(error,results)})})};exports.keysDifference=function(obj,other){var difference=[];for(var i in obj){if(!(i in other)){difference.push(i)}}return difference};exports.extend=function(dest){for(var i=1;i<arguments.length;i++){var src=arguments[i];for(var k in src){dest[k]=src[k]}}return dest};exports.extendAll=function(dest,src){for(var i in src){Object.defineProperty(dest,i,Object.getOwnPropertyDescriptor(src,i))}return dest};exports.inherit=function(parent,props){var parentProto=typeof parent==="function"?parent.prototype:parent,proto=Object.create(parentProto);exports.extendAll(proto,props);return proto};exports.pick=function(src,properties){var result={};for(var i=0;i<properties.length;i++){var k=properties[i];if(k in src){result[k]=src[k]}}return result};var id=1;exports.uniqueId=function(){return id++};exports.debounce=function(fn,time){var timer,args;return function(){args=arguments;clearTimeout(timer);timer=setTimeout(function(){fn.apply(null,args)},time)}};exports.bindAll=function(fns,context){fns.forEach(function(fn){if(!context[fn]){return}context[fn]=context[fn].bind(context)})};exports.bindHandlers=function(context){for(var i in context){if(typeof context[i]==="function"&&i.indexOf("_on")===0){context[i]=context[i].bind(context)}}};exports.setOptions=function(obj,options){if(!obj.hasOwnProperty("options")){obj.options=obj.options?Object.create(obj.options):{}}for(var i in options){obj.options[i]=options[i]}return obj.options};exports.getCoordinatesCenter=function(coords){var minX=Infinity;var minY=Infinity;var maxX=-Infinity;var maxY=-Infinity;for(var i=0;i<coords.length;i++){minX=Math.min(minX,coords[i].column);minY=Math.min(minY,coords[i].row);maxX=Math.max(maxX,coords[i].column);maxY=Math.max(maxY,coords[i].row)}var dx=maxX-minX;var dy=maxY-minY;var dMax=Math.max(dx,dy);return new Coordinate((minX+maxX)/2,(minY+maxY)/2,0).zoomTo(Math.floor(-Math.log(dMax)/Math.LN2))};exports.endsWith=function(string,suffix){return string.indexOf(suffix,string.length-suffix.length)!==-1};exports.startsWith=function(string,prefix){return string.indexOf(prefix)===0};exports.mapObject=function(input,iterator,context){var output={};for(var key in input){output[key]=iterator.call(context||this,input[key],key,input)}return output};exports.filterObject=function(input,iterator,context){var output={};for(var key in input){if(iterator.call(context||this,input[key],key,input)){output[key]=input[key]}}return output};exports.deepEqual=function(a,b){if(Array.isArray(a)){if(!Array.isArray(b)||a.length!==b.length)return false;for(var i=0;i<a.length;i++){if(!exports.deepEqual(a[i],b[i]))return false}return true}if(typeof a==="object"&&a!==null&&b!==null){if(!(typeof b==="object"))return false;var keys=Object.keys(a);if(keys.length!==Object.keys(b).length)return false;for(var key in a){if(!exports.deepEqual(a[key],b[key]))return false}return true}return a===b};exports.clone=function(input){if(Array.isArray(input)){return input.map(exports.clone)}else if(typeof input==="object"){return exports.mapObject(input,exports.clone)}else{return input}};exports.arraysIntersect=function(a,b){for(var l=0;l<a.length;l++){if(b.indexOf(a[l])>=0)return true}return false};var warnOnceHistory={};exports.warnOnce=function(message){if(!warnOnceHistory[message]){if(typeof console!=="undefined")console.warn(message);warnOnceHistory[message]=true}};exports.isCounterClockwise=function(a,b,c){return(c.y-a.y)*(b.x-a.x)>(b.y-a.y)*(c.x-a.x)};exports.calculateSignedArea=function(ring){var sum=0;for(var i=0,len=ring.length,j=len-1,p1,p2;i<len;j=i++){p1=ring[i];p2=ring[j];sum+=(p2.x-p1.x)*(p1.y+p2.y)}return sum};exports.isClosedPolygon=function(points){if(points.length<4)return false;var p1=points[0];var p2=points[points.length-1];if(Math.abs(p1.x-p2.x)>0||Math.abs(p1.y-p2.y)>0){return false}return Math.abs(exports.calculateSignedArea(points))>.01};exports.sphericalToCartesian=function(spherical){var r=spherical[0],azimuthal=spherical[1],polar=spherical[2];azimuthal+=90;azimuthal*=Math.PI/180;polar*=Math.PI/180;return[r*Math.cos(azimuthal)*Math.sin(polar),r*Math.sin(azimuthal)*Math.sin(polar),r*Math.cos(polar)]}},{"../geo/coordinate":27,unitbezier:205}],138:[function(require,module,exports){"use strict";module.exports=Feature;function Feature(vectorTileFeature,z,x,y){this._vectorTileFeature=vectorTileFeature;vectorTileFeature._z=z;vectorTileFeature._x=x;vectorTileFeature._y=y;this.properties=vectorTileFeature.properties;if(vectorTileFeature.id!=null){this.id=vectorTileFeature.id}}Feature.prototype={type:"Feature",get geometry(){if(this._geometry===undefined){this._geometry=this._vectorTileFeature.toGeoJSON(this._vectorTileFeature._x,this._vectorTileFeature._y,this._vectorTileFeature._z).geometry}return this._geometry},set geometry(g){this._geometry=g},toJSON:function(){var json={};for(var i in this){if(i==="_geometry"||i==="_vectorTileFeature"||i==="toJSON")continue;json[i]=this[i]}return json}}},{}],139:[function(require,module,exports){"use strict";var WebWorker=require("./web_worker");module.exports=WorkerPool;function WorkerPool(){this.active={}}WorkerPool.prototype={acquire:function(mapId){if(!this.workers){var workerCount=require("../mapbox-gl").workerCount;this.workers=[];while(this.workers.length<workerCount){this.workers.push(new WebWorker)}}this.active[mapId]=true;return this.workers.slice()},release:function(mapId){delete this.active[mapId];if(Object.keys(this.active).length===0){this.workers.forEach(function(w){w.terminate()});this.workers=null}}}},{"../mapbox-gl":33,"./web_worker":121}],140:[function(require,module,exports){var kCSSColorTable={transparent:[0,0,0,0],aliceblue:[240,248,255,1],antiquewhite:[250,235,215,1],aqua:[0,255,255,1],aquamarine:[127,255,212,1],azure:[240,255,255,1],beige:[245,245,220,1],bisque:[255,228,196,1],black:[0,0,0,1],blanchedalmond:[255,235,205,1],blue:[0,0,255,1],blueviolet:[138,43,226,1],brown:[165,42,42,1],burlywood:[222,184,135,1],cadetblue:[95,158,160,1],chartreuse:[127,255,0,1],chocolate:[210,105,30,1],coral:[255,127,80,1],cornflowerblue:[100,149,237,1],cornsilk:[255,248,220,1],crimson:[220,20,60,1],cyan:[0,255,255,1],darkblue:[0,0,139,1],darkcyan:[0,139,139,1],darkgoldenrod:[184,134,11,1],darkgray:[169,169,169,1],darkgreen:[0,100,0,1],darkgrey:[169,169,169,1],darkkhaki:[189,183,107,1],darkmagenta:[139,0,139,1],darkolivegreen:[85,107,47,1],darkorange:[255,140,0,1],darkorchid:[153,50,204,1],darkred:[139,0,0,1],darksalmon:[233,150,122,1],darkseagreen:[143,188,143,1],darkslateblue:[72,61,139,1],darkslategray:[47,79,79,1],darkslategrey:[47,79,79,1],darkturquoise:[0,206,209,1],darkviolet:[148,0,211,1],deeppink:[255,20,147,1],deepskyblue:[0,191,255,1],dimgray:[105,105,105,1],dimgrey:[105,105,105,1],dodgerblue:[30,144,255,1],firebrick:[178,34,34,1],floralwhite:[255,250,240,1],forestgreen:[34,139,34,1],fuchsia:[255,0,255,1],gainsboro:[220,220,220,1],ghostwhite:[248,248,255,1],gold:[255,215,0,1],goldenrod:[218,165,32,1],gray:[128,128,128,1],green:[0,128,0,1],greenyellow:[173,255,47,1],grey:[128,128,128,1],honeydew:[240,255,240,1],hotpink:[255,105,180,1],indianred:[205,92,92,1],indigo:[75,0,130,1],ivory:[255,255,240,1],khaki:[240,230,140,1],lavender:[230,230,250,1],lavenderblush:[255,240,245,1],lawngreen:[124,252,0,1],lemonchiffon:[255,250,205,1],lightblue:[173,216,230,1],lightcoral:[240,128,128,1],lightcyan:[224,255,255,1],lightgoldenrodyellow:[250,250,210,1],lightgray:[211,211,211,1],lightgreen:[144,238,144,1],lightgrey:[211,211,211,1],lightpink:[255,182,193,1],lightsalmon:[255,160,122,1],lightseagreen:[32,178,170,1],lightskyblue:[135,206,250,1],lightslategray:[119,136,153,1],lightslategrey:[119,136,153,1],lightsteelblue:[176,196,222,1],lightyellow:[255,255,224,1],lime:[0,255,0,1],limegreen:[50,205,50,1],linen:[250,240,230,1],magenta:[255,0,255,1],maroon:[128,0,0,1],mediumaquamarine:[102,205,170,1],mediumblue:[0,0,205,1],mediumorchid:[186,85,211,1],mediumpurple:[147,112,219,1],mediumseagreen:[60,179,113,1],mediumslateblue:[123,104,238,1],mediumspringgreen:[0,250,154,1],mediumturquoise:[72,209,204,1],mediumvioletred:[199,21,133,1],midnightblue:[25,25,112,1],mintcream:[245,255,250,1],mistyrose:[255,228,225,1],moccasin:[255,228,181,1],navajowhite:[255,222,173,1],navy:[0,0,128,1],oldlace:[253,245,230,1],olive:[128,128,0,1],olivedrab:[107,142,35,1],orange:[255,165,0,1],orangered:[255,69,0,1],orchid:[218,112,214,1],palegoldenrod:[238,232,170,1],palegreen:[152,251,152,1],paleturquoise:[175,238,238,1],palevioletred:[219,112,147,1],papayawhip:[255,239,213,1],peachpuff:[255,218,185,1],peru:[205,133,63,1],pink:[255,192,203,1],plum:[221,160,221,1],powderblue:[176,224,230,1],purple:[128,0,128,1],rebeccapurple:[102,51,153,1],red:[255,0,0,1],rosybrown:[188,143,143,1],royalblue:[65,105,225,1],saddlebrown:[139,69,19,1],salmon:[250,128,114,1],sandybrown:[244,164,96,1],seagreen:[46,139,87,1],seashell:[255,245,238,1],sienna:[160,82,45,1],silver:[192,192,192,1],skyblue:[135,206,235,1],slateblue:[106,90,205,1],slategray:[112,128,144,1],slategrey:[112,128,144,1],snow:[255,250,250,1],springgreen:[0,255,127,1],steelblue:[70,130,180,1],tan:[210,180,140,1],teal:[0,128,128,1],thistle:[216,191,216,1],tomato:[255,99,71,1],turquoise:[64,224,208,1],violet:[238,130,238,1],wheat:[245,222,179,1],white:[255,255,255,1],whitesmoke:[245,245,245,1],yellow:[255,255,0,1],yellowgreen:[154,205,50,1]};function clamp_css_byte(i){i=Math.round(i);return i<0?0:i>255?255:i}function clamp_css_float(f){return f<0?0:f>1?1:f}function parse_css_int(str){if(str[str.length-1]==="%")return clamp_css_byte(parseFloat(str)/100*255);return clamp_css_byte(parseInt(str))}function parse_css_float(str){if(str[str.length-1]==="%")return clamp_css_float(parseFloat(str)/100);return clamp_css_float(parseFloat(str))}function css_hue_to_rgb(m1,m2,h){if(h<0)h+=1;else if(h>1)h-=1;if(h*6<1)return m1+(m2-m1)*h*6;if(h*2<1)return m2;if(h*3<2)return m1+(m2-m1)*(2/3-h)*6;return m1}function parseCSSColor(css_str){var str=css_str.replace(/ /g,"").toLowerCase();if(str in kCSSColorTable)return kCSSColorTable[str].slice();if(str[0]==="#"){if(str.length===4){var iv=parseInt(str.substr(1),16);if(!(iv>=0&&iv<=4095))return null;return[(iv&3840)>>4|(iv&3840)>>8,iv&240|(iv&240)>>4,iv&15|(iv&15)<<4,1]}else if(str.length===7){var iv=parseInt(str.substr(1),16);if(!(iv>=0&&iv<=16777215))return null;return[(iv&16711680)>>16,(iv&65280)>>8,iv&255,1]}return null}var op=str.indexOf("("),ep=str.indexOf(")");if(op!==-1&&ep+1===str.length){var fname=str.substr(0,op);var params=str.substr(op+1,ep-(op+1)).split(",");var alpha=1;switch(fname){case"rgba":if(params.length!==4)return null;alpha=parse_css_float(params.pop());case"rgb":if(params.length!==3)return null;return[parse_css_int(params[0]),parse_css_int(params[1]),parse_css_int(params[2]),alpha];case"hsla":if(params.length!==4)return null;alpha=parse_css_float(params.pop());case"hsl":if(params.length!==3)return null;var h=(parseFloat(params[0])%360+360)%360/360;var s=parse_css_float(params[1]);var l=parse_css_float(params[2]);var m2=l<=.5?l*(s+1):l+s-l*s;var m1=l*2-m2;return[clamp_css_byte(css_hue_to_rgb(m1,m2,h+1/3)*255),clamp_css_byte(css_hue_to_rgb(m1,m2,h)*255),clamp_css_byte(css_hue_to_rgb(m1,m2,h-1/3)*255),alpha];default:return null}}return null}try{exports.parseCSSColor=parseCSSColor}catch(e){}},{}],141:[function(require,module,exports){"use strict";module.exports=earcut;function earcut(data,holeIndices,dim){dim=dim||2;var hasHoles=holeIndices&&holeIndices.length,outerLen=hasHoles?holeIndices[0]*dim:data.length,outerNode=linkedList(data,0,outerLen,dim,true),triangles=[];if(!outerNode)return triangles;var minX,minY,maxX,maxY,x,y,size;if(hasHoles)outerNode=eliminateHoles(data,holeIndices,outerNode,dim);if(data.length>80*dim){minX=maxX=data[0];minY=maxY=data[1];for(var i=dim;i<outerLen;i+=dim){x=data[i];y=data[i+1];if(x<minX)minX=x;if(y<minY)minY=y;if(x>maxX)maxX=x;if(y>maxY)maxY=y}size=Math.max(maxX-minX,maxY-minY)}earcutLinked(outerNode,triangles,dim,minX,minY,size);return triangles}function linkedList(data,start,end,dim,clockwise){var i,last;if(clockwise===signedArea(data,start,end,dim)>0){for(i=start;i<end;i+=dim)last=insertNode(i,data[i],data[i+1],last)}else{for(i=end-dim;i>=start;i-=dim)last=insertNode(i,data[i],data[i+1],last)}if(last&&equals(last,last.next)){removeNode(last);last=last.next}return last}function filterPoints(start,end){if(!start)return start;if(!end)end=start;var p=start,again;do{again=false;if(!p.steiner&&(equals(p,p.next)||area(p.prev,p,p.next)===0)){removeNode(p);p=end=p.prev;if(p===p.next)return null;again=true}else{p=p.next}}while(again||p!==end);return end}function earcutLinked(ear,triangles,dim,minX,minY,size,pass){if(!ear)return;if(!pass&&size)indexCurve(ear,minX,minY,size);var stop=ear,prev,next;while(ear.prev!==ear.next){prev=ear.prev;next=ear.next;if(size?isEarHashed(ear,minX,minY,size):isEar(ear)){triangles.push(prev.i/dim);triangles.push(ear.i/dim);triangles.push(next.i/dim);removeNode(ear);ear=next.next;stop=next.next;continue}ear=next;if(ear===stop){if(!pass){earcutLinked(filterPoints(ear),triangles,dim,minX,minY,size,1)}else if(pass===1){ear=cureLocalIntersections(ear,triangles,dim);earcutLinked(ear,triangles,dim,minX,minY,size,2)}else if(pass===2){splitEarcut(ear,triangles,dim,minX,minY,size)}break}}}function isEar(ear){var a=ear.prev,b=ear,c=ear.next;if(area(a,b,c)>=0)return false;var p=ear.next.next;while(p!==ear.prev){if(pointInTriangle(a.x,a.y,b.x,b.y,c.x,c.y,p.x,p.y)&&area(p.prev,p,p.next)>=0)return false;p=p.next}return true}function isEarHashed(ear,minX,minY,size){var a=ear.prev,b=ear,c=ear.next;if(area(a,b,c)>=0)return false;var minTX=a.x<b.x?a.x<c.x?a.x:c.x:b.x<c.x?b.x:c.x,minTY=a.y<b.y?a.y<c.y?a.y:c.y:b.y<c.y?b.y:c.y,maxTX=a.x>b.x?a.x>c.x?a.x:c.x:b.x>c.x?b.x:c.x,maxTY=a.y>b.y?a.y>c.y?a.y:c.y:b.y>c.y?b.y:c.y;var minZ=zOrder(minTX,minTY,minX,minY,size),maxZ=zOrder(maxTX,maxTY,minX,minY,size);var p=ear.nextZ;while(p&&p.z<=maxZ){if(p!==ear.prev&&p!==ear.next&&pointInTriangle(a.x,a.y,b.x,b.y,c.x,c.y,p.x,p.y)&&area(p.prev,p,p.next)>=0)return false;p=p.nextZ}p=ear.prevZ;while(p&&p.z>=minZ){if(p!==ear.prev&&p!==ear.next&&pointInTriangle(a.x,a.y,b.x,b.y,c.x,c.y,p.x,p.y)&&area(p.prev,p,p.next)>=0)return false;p=p.prevZ}return true}function cureLocalIntersections(start,triangles,dim){var p=start;do{var a=p.prev,b=p.next.next;if(!equals(a,b)&&intersects(a,p,p.next,b)&&locallyInside(a,b)&&locallyInside(b,a)){triangles.push(a.i/dim);triangles.push(p.i/dim);triangles.push(b.i/dim);removeNode(p);removeNode(p.next);p=start=b}p=p.next}while(p!==start);return p}function splitEarcut(start,triangles,dim,minX,minY,size){var a=start;do{var b=a.next.next;while(b!==a.prev){if(a.i!==b.i&&isValidDiagonal(a,b)){var c=splitPolygon(a,b);a=filterPoints(a,a.next);c=filterPoints(c,c.next);earcutLinked(a,triangles,dim,minX,minY,size);earcutLinked(c,triangles,dim,minX,minY,size);return}b=b.next}a=a.next}while(a!==start)}function eliminateHoles(data,holeIndices,outerNode,dim){var queue=[],i,len,start,end,list;for(i=0,len=holeIndices.length;i<len;i++){start=holeIndices[i]*dim;end=i<len-1?holeIndices[i+1]*dim:data.length;list=linkedList(data,start,end,dim,false);if(list===list.next)list.steiner=true;queue.push(getLeftmost(list))}queue.sort(compareX);for(i=0;i<queue.length;i++){eliminateHole(queue[i],outerNode);outerNode=filterPoints(outerNode,outerNode.next)}return outerNode}function compareX(a,b){return a.x-b.x}function eliminateHole(hole,outerNode){outerNode=findHoleBridge(hole,outerNode);if(outerNode){var b=splitPolygon(outerNode,hole);filterPoints(b,b.next)}}function findHoleBridge(hole,outerNode){var p=outerNode,hx=hole.x,hy=hole.y,qx=-Infinity,m;do{if(hy<=p.y&&hy>=p.next.y){var x=p.x+(hy-p.y)*(p.next.x-p.x)/(p.next.y-p.y);if(x<=hx&&x>qx){qx=x;if(x===hx){if(hy===p.y)return p;if(hy===p.next.y)return p.next}m=p.x<p.next.x?p:p.next}}p=p.next}while(p!==outerNode);if(!m)return null;if(hx===qx)return m.prev;var stop=m,mx=m.x,my=m.y,tanMin=Infinity,tan;p=m.next;while(p!==stop){if(hx>=p.x&&p.x>=mx&&pointInTriangle(hy<my?hx:qx,hy,mx,my,hy<my?qx:hx,hy,p.x,p.y)){tan=Math.abs(hy-p.y)/(hx-p.x);if((tan<tanMin||tan===tanMin&&p.x>m.x)&&locallyInside(p,hole)){m=p;tanMin=tan}}p=p.next}return m}function indexCurve(start,minX,minY,size){var p=start;do{if(p.z===null)p.z=zOrder(p.x,p.y,minX,minY,size);p.prevZ=p.prev;p.nextZ=p.next;p=p.next}while(p!==start);p.prevZ.nextZ=null;p.prevZ=null;sortLinked(p)}function sortLinked(list){var i,p,q,e,tail,numMerges,pSize,qSize,inSize=1;do{p=list;list=null;tail=null;numMerges=0;while(p){numMerges++;q=p;pSize=0;for(i=0;i<inSize;i++){pSize++;q=q.nextZ;if(!q)break}qSize=inSize;while(pSize>0||qSize>0&&q){if(pSize===0){e=q;q=q.nextZ;qSize--}else if(qSize===0||!q){e=p;p=p.nextZ;pSize--}else if(p.z<=q.z){e=p;p=p.nextZ;pSize--}else{e=q;q=q.nextZ;qSize--}if(tail)tail.nextZ=e;else list=e;e.prevZ=tail;tail=e}p=q}tail.nextZ=null;inSize*=2}while(numMerges>1);return list}function zOrder(x,y,minX,minY,size){x=32767*(x-minX)/size;y=32767*(y-minY)/size;x=(x|x<<8)&16711935;x=(x|x<<4)&252645135;x=(x|x<<2)&858993459;x=(x|x<<1)&1431655765;y=(y|y<<8)&16711935;y=(y|y<<4)&252645135;y=(y|y<<2)&858993459;y=(y|y<<1)&1431655765;return x|y<<1}function getLeftmost(start){var p=start,leftmost=start;do{if(p.x<leftmost.x)leftmost=p;p=p.next}while(p!==start);return leftmost}function pointInTriangle(ax,ay,bx,by,cx,cy,px,py){return(cx-px)*(ay-py)-(ax-px)*(cy-py)>=0&&(ax-px)*(by-py)-(bx-px)*(ay-py)>=0&&(bx-px)*(cy-py)-(cx-px)*(by-py)>=0}function isValidDiagonal(a,b){return a.next.i!==b.i&&a.prev.i!==b.i&&!intersectsPolygon(a,b)&&locallyInside(a,b)&&locallyInside(b,a)&&middleInside(a,b)}function area(p,q,r){return(q.y-p.y)*(r.x-q.x)-(q.x-p.x)*(r.y-q.y)}function equals(p1,p2){return p1.x===p2.x&&p1.y===p2.y}function intersects(p1,q1,p2,q2){if(equals(p1,q1)&&equals(p2,q2)||equals(p1,q2)&&equals(p2,q1))return true;return area(p1,q1,p2)>0!==area(p1,q1,q2)>0&&area(p2,q2,p1)>0!==area(p2,q2,q1)>0}function intersectsPolygon(a,b){var p=a;do{if(p.i!==a.i&&p.next.i!==a.i&&p.i!==b.i&&p.next.i!==b.i&&intersects(p,p.next,a,b))return true;p=p.next}while(p!==a);return false}function locallyInside(a,b){return area(a.prev,a,a.next)<0?area(a,b,a.next)>=0&&area(a,a.prev,b)>=0:area(a,b,a.prev)<0||area(a,a.next,b)<0}function middleInside(a,b){var p=a,inside=false,px=(a.x+b.x)/2,py=(a.y+b.y)/2;do{if(p.y>py!==p.next.y>py&&px<(p.next.x-p.x)*(py-p.y)/(p.next.y-p.y)+p.x)inside=!inside;p=p.next}while(p!==a);return inside}function splitPolygon(a,b){var a2=new Node(a.i,a.x,a.y),b2=new Node(b.i,b.x,b.y),an=a.next,bp=b.prev;a.next=b;b.prev=a;a2.next=an;an.prev=a2;b2.next=a2;a2.prev=b2;bp.next=b2;b2.prev=bp;return b2}function insertNode(i,x,y,last){var p=new Node(i,x,y);if(!last){p.prev=p;p.next=p}else{p.next=last.next;p.prev=last;last.next.prev=p;last.next=p}return p}function removeNode(p){p.next.prev=p.prev;p.prev.next=p.next;if(p.prevZ)p.prevZ.nextZ=p.nextZ;if(p.nextZ)p.nextZ.prevZ=p.prevZ}function Node(i,x,y){this.i=i;this.x=x;this.y=y;this.prev=null;this.next=null;this.z=null;this.prevZ=null;this.nextZ=null;this.steiner=false}earcut.deviation=function(data,holeIndices,dim,triangles){var hasHoles=holeIndices&&holeIndices.length;var outerLen=hasHoles?holeIndices[0]*dim:data.length;var polygonArea=Math.abs(signedArea(data,0,outerLen,dim));if(hasHoles){for(var i=0,len=holeIndices.length;i<len;i++){var start=holeIndices[i]*dim;var end=i<len-1?holeIndices[i+1]*dim:data.length;polygonArea-=Math.abs(signedArea(data,start,end,dim))}}var trianglesArea=0;for(i=0;i<triangles.length;i+=3){var a=triangles[i]*dim;var b=triangles[i+1]*dim;var c=triangles[i+2]*dim;trianglesArea+=Math.abs((data[a]-data[c])*(data[b+1]-data[a+1])-(data[a]-data[b])*(data[c+1]-data[a+1]))}return polygonArea===0&&trianglesArea===0?0:Math.abs((trianglesArea-polygonArea)/polygonArea)};function signedArea(data,start,end,dim){var sum=0;for(var i=start,j=end-dim;i<end;i+=dim){sum+=(data[j]-data[i])*(data[i+1]+data[j+1]);j=i}return sum}earcut.flatten=function(data){var dim=data[0][0].length,result={vertices:[],holes:[],dimensions:dim},holeIndex=0;for(var i=0;i<data.length;i++){for(var j=0;j<data[i].length;j++){for(var d=0;d<dim;d++)result.vertices.push(data[i][j][d])}if(i>0){holeIndex+=data[i-1].length;result.holes.push(holeIndex)}}return result}},{}],142:[function(require,module,exports){"use strict";module.exports=createFilter;var types=["Unknown","Point","LineString","Polygon"];function createFilter(filter){return new Function("f","var p = (f && f.properties || {}); return "+compile(filter))}function compile(filter){if(!filter)return"true";var op=filter[0];if(filter.length<=1)return op==="any"?"false":"true";var str=op==="=="?compileComparisonOp(filter[1],filter[2],"===",false):op==="!="?compileComparisonOp(filter[1],filter[2],"!==",false):op==="<"||op===">"||op==="<="||op===">="?compileComparisonOp(filter[1],filter[2],op,true):op==="any"?compileLogicalOp(filter.slice(1),"||"):op==="all"?compileLogicalOp(filter.slice(1),"&&"):op==="none"?compileNegation(compileLogicalOp(filter.slice(1),"||")):op==="in"?compileInOp(filter[1],filter.slice(2)):op==="!in"?compileNegation(compileInOp(filter[1],filter.slice(2))):op==="has"?compileHasOp(filter[1]):op==="!has"?compileNegation(compileHasOp([filter[1]])):"true";return"("+str+")"}function compilePropertyReference(property){return property==="$type"?"f.type":property==="$id"?"f.id":"p["+JSON.stringify(property)+"]"}function compileComparisonOp(property,value,op,checkType){var left=compilePropertyReference(property);var right=property==="$type"?types.indexOf(value):JSON.stringify(value);return(checkType?"typeof "+left+"=== typeof "+right+"&&":"")+left+op+right}function compileLogicalOp(expressions,op){return expressions.map(compile).join(op)}function compileInOp(property,values){if(property==="$type")values=values.map(function(value){return types.indexOf(value)});var left=JSON.stringify(values.sort(compare));var right=compilePropertyReference(property);if(values.length<=200)return left+".indexOf("+right+") !== -1";return"function(v, a, i, j) {"+"while (i <= j) { var m = (i + j) >> 1;"+"    if (a[m] === v) return true; if (a[m] > v) j = m - 1; else i = m + 1;"+"}"+"return false; }("+right+", "+left+",0,"+(values.length-1)+")"}function compileHasOp(property){return JSON.stringify(property)+" in p"}function compileNegation(expression){return"!("+expression+")"}function compare(a,b){return a<b?-1:a>b?1:0}},{}],143:[function(require,module,exports){var geojsonArea=require("geojson-area");module.exports=rewind;function rewind(gj,outer){switch(gj&&gj.type||null){case"FeatureCollection":gj.features=gj.features.map(curryOuter(rewind,outer));return gj;case"Feature":gj.geometry=rewind(gj.geometry,outer);return gj;case"Polygon":case"MultiPolygon":return correct(gj,outer);default:return gj}}function curryOuter(a,b){return function(_){return a(_,b)}}function correct(_,outer){if(_.type==="Polygon"){_.coordinates=correctRings(_.coordinates,outer)}else if(_.type==="MultiPolygon"){_.coordinates=_.coordinates.map(curryOuter(correctRings,outer))}return _}function correctRings(_,outer){outer=!!outer;_[0]=wind(_[0],!outer);for(var i=1;i<_.length;i++){_[i]=wind(_[i],outer)}return _}function wind(_,dir){return cw(_)===dir?_:_.reverse()}function cw(_){return geojsonArea.ring(_)>=0}},{"geojson-area":144}],144:[function(require,module,exports){var wgs84=require("wgs84");module.exports.geometry=geometry;module.exports.ring=ringArea;function geometry(_){if(_.type==="Polygon")return polygonArea(_.coordinates);else if(_.type==="MultiPolygon"){var area=0;for(var i=0;i<_.coordinates.length;i++){area+=polygonArea(_.coordinates[i])}return area}else{return null}}function polygonArea(coords){var area=0;if(coords&&coords.length>0){area+=Math.abs(ringArea(coords[0]));for(var i=1;i<coords.length;i++){area-=Math.abs(ringArea(coords[i]))}}return area}function ringArea(coords){var area=0;if(coords.length>2){var p1,p2;for(var i=0;i<coords.length-1;i++){p1=coords[i];p2=coords[i+1];area+=rad(p2[0]-p1[0])*(2+Math.sin(rad(p1[1]))+Math.sin(rad(p2[1])))}area=area*wgs84.RADIUS*wgs84.RADIUS/2}return area}function rad(_){return _*Math.PI/180}},{wgs84:145}],145:[function(require,module,exports){module.exports.RADIUS=6378137;module.exports.FLATTENING=1/298.257223563;module.exports.POLAR_RADIUS=6356752.3142},{}],146:[function(require,module,exports){"use strict";module.exports=clip;var createFeature=require("./feature");function clip(features,scale,k1,k2,axis,intersect,minAll,maxAll){k1/=scale;k2/=scale;if(minAll>=k1&&maxAll<=k2)return features;else if(minAll>k2||maxAll<k1)return null;var clipped=[];for(var i=0;i<features.length;i++){var feature=features[i],geometry=feature.geometry,type=feature.type,min,max;min=feature.min[axis];max=feature.max[axis];if(min>=k1&&max<=k2){clipped.push(feature);continue}else if(min>k2||max<k1)continue;var slices=type===1?clipPoints(geometry,k1,k2,axis):clipGeometry(geometry,k1,k2,axis,intersect,type===3);if(slices.length){clipped.push(createFeature(feature.tags,type,slices,feature.id))}}return clipped.length?clipped:null}function clipPoints(geometry,k1,k2,axis){var slice=[];for(var i=0;i<geometry.length;i++){var a=geometry[i],ak=a[axis];if(ak>=k1&&ak<=k2)slice.push(a)}return slice}function clipGeometry(geometry,k1,k2,axis,intersect,closed){var slices=[];for(var i=0;i<geometry.length;i++){var ak=0,bk=0,b=null,points=geometry[i],area=points.area,dist=points.dist,outer=points.outer,len=points.length,a,j,last;var slice=[];for(j=0;j<len-1;j++){a=b||points[j];b=points[j+1];ak=bk||a[axis];bk=b[axis];if(ak<k1){if(bk>k2){slice.push(intersect(a,b,k1),intersect(a,b,k2));if(!closed)slice=newSlice(slices,slice,area,dist,outer)}else if(bk>=k1)slice.push(intersect(a,b,k1))}else if(ak>k2){if(bk<k1){slice.push(intersect(a,b,k2),intersect(a,b,k1));if(!closed)slice=newSlice(slices,slice,area,dist,outer)}else if(bk<=k2)slice.push(intersect(a,b,k2))}else{slice.push(a);if(bk<k1){slice.push(intersect(a,b,k1));if(!closed)slice=newSlice(slices,slice,area,dist,outer)}else if(bk>k2){slice.push(intersect(a,b,k2));if(!closed)slice=newSlice(slices,slice,area,dist,outer)}}}a=points[len-1];ak=a[axis];if(ak>=k1&&ak<=k2)slice.push(a);last=slice[slice.length-1];if(closed&&last&&(slice[0][0]!==last[0]||slice[0][1]!==last[1]))slice.push(slice[0]);newSlice(slices,slice,area,dist,outer)}return slices}function newSlice(slices,slice,area,dist,outer){if(slice.length){slice.area=area;slice.dist=dist;if(outer!==undefined)slice.outer=outer;slices.push(slice)}return[]}},{"./feature":148}],147:[function(require,module,exports){"use strict";module.exports=convert;var simplify=require("./simplify");var createFeature=require("./feature");function convert(data,tolerance){var features=[];if(data.type==="FeatureCollection"){for(var i=0;i<data.features.length;i++){convertFeature(features,data.features[i],tolerance)}}else if(data.type==="Feature"){convertFeature(features,data,tolerance)}else{convertFeature(features,{geometry:data},tolerance)}return features}function convertFeature(features,feature,tolerance){if(feature.geometry===null){return}var geom=feature.geometry,type=geom.type,coords=geom.coordinates,tags=feature.properties,id=feature.id,i,j,rings,projectedRing;if(type==="Point"){features.push(createFeature(tags,1,[projectPoint(coords)],id))}else if(type==="MultiPoint"){features.push(createFeature(tags,1,project(coords),id))}else if(type==="LineString"){features.push(createFeature(tags,2,[project(coords,tolerance)],id))}else if(type==="MultiLineString"||type==="Polygon"){rings=[];for(i=0;i<coords.length;i++){projectedRing=project(coords[i],tolerance);if(type==="Polygon")projectedRing.outer=i===0;rings.push(projectedRing)}features.push(createFeature(tags,type==="Polygon"?3:2,rings,id))}else if(type==="MultiPolygon"){rings=[];for(i=0;i<coords.length;i++){for(j=0;j<coords[i].length;j++){projectedRing=project(coords[i][j],tolerance);projectedRing.outer=j===0;rings.push(projectedRing)}}features.push(createFeature(tags,3,rings,id))}else if(type==="GeometryCollection"){for(i=0;i<geom.geometries.length;i++){convertFeature(features,{geometry:geom.geometries[i],properties:tags},tolerance)}}else{throw new Error("Input data is not a valid GeoJSON object.")}}function project(lonlats,tolerance){var projected=[];for(var i=0;i<lonlats.length;i++){projected.push(projectPoint(lonlats[i]))}if(tolerance){simplify(projected,tolerance);calcSize(projected)}return projected}function projectPoint(p){var sin=Math.sin(p[1]*Math.PI/180),x=p[0]/360+.5,y=.5-.25*Math.log((1+sin)/(1-sin))/Math.PI;y=y<0?0:y>1?1:y;return[x,y,0]}function calcSize(points){var area=0,dist=0;for(var i=0,a,b;i<points.length-1;i++){a=b||points[i];b=points[i+1];area+=a[0]*b[1]-b[0]*a[1];dist+=Math.abs(b[0]-a[0])+Math.abs(b[1]-a[1])}points.area=Math.abs(area/2);points.dist=dist}},{"./feature":148,"./simplify":150}],148:[function(require,module,exports){"use strict";module.exports=createFeature;function createFeature(tags,type,geom,id){var feature={id:id||null,type:type,geometry:geom,tags:tags||null,min:[Infinity,Infinity],max:[-Infinity,-Infinity]};calcBBox(feature);return feature}function calcBBox(feature){var geometry=feature.geometry,min=feature.min,max=feature.max;if(feature.type===1){calcRingBBox(min,max,geometry)}else{for(var i=0;i<geometry.length;i++){calcRingBBox(min,max,geometry[i])}}return feature}function calcRingBBox(min,max,points){for(var i=0,p;i<points.length;i++){p=points[i];min[0]=Math.min(p[0],min[0]);max[0]=Math.max(p[0],max[0]);min[1]=Math.min(p[1],min[1]);max[1]=Math.max(p[1],max[1])}}},{}],149:[function(require,module,exports){
"use strict";module.exports=geojsonvt;var convert=require("./convert"),transform=require("./transform"),clip=require("./clip"),wrap=require("./wrap"),createTile=require("./tile");function geojsonvt(data,options){return new GeoJSONVT(data,options)}function GeoJSONVT(data,options){options=this.options=extend(Object.create(this.options),options);var debug=options.debug;if(debug)console.time("preprocess data");var z2=1<<options.maxZoom,features=convert(data,options.tolerance/(z2*options.extent));this.tiles={};this.tileCoords=[];if(debug){console.timeEnd("preprocess data");console.log("index: maxZoom: %d, maxPoints: %d",options.indexMaxZoom,options.indexMaxPoints);console.time("generate tiles");this.stats={};this.total=0}features=wrap(features,options.buffer/options.extent,intersectX);if(features.length)this.splitTile(features,0,0,0);if(debug){if(features.length)console.log("features: %d, points: %d",this.tiles[0].numFeatures,this.tiles[0].numPoints);console.timeEnd("generate tiles");console.log("tiles generated:",this.total,JSON.stringify(this.stats))}}GeoJSONVT.prototype.options={maxZoom:14,indexMaxZoom:5,indexMaxPoints:1e5,solidChildren:false,tolerance:3,extent:4096,buffer:64,debug:0};GeoJSONVT.prototype.splitTile=function(features,z,x,y,cz,cx,cy){var stack=[features,z,x,y],options=this.options,debug=options.debug,solid=null;while(stack.length){y=stack.pop();x=stack.pop();z=stack.pop();features=stack.pop();var z2=1<<z,id=toID(z,x,y),tile=this.tiles[id],tileTolerance=z===options.maxZoom?0:options.tolerance/(z2*options.extent);if(!tile){if(debug>1)console.time("creation");tile=this.tiles[id]=createTile(features,z2,x,y,tileTolerance,z===options.maxZoom);this.tileCoords.push({z:z,x:x,y:y});if(debug){if(debug>1){console.log("tile z%d-%d-%d (features: %d, points: %d, simplified: %d)",z,x,y,tile.numFeatures,tile.numPoints,tile.numSimplified);console.timeEnd("creation")}var key="z"+z;this.stats[key]=(this.stats[key]||0)+1;this.total++}}tile.source=features;if(!cz){if(z===options.indexMaxZoom||tile.numPoints<=options.indexMaxPoints)continue}else{if(z===options.maxZoom||z===cz)continue;var m=1<<cz-z;if(x!==Math.floor(cx/m)||y!==Math.floor(cy/m))continue}if(!options.solidChildren&&isClippedSquare(tile,options.extent,options.buffer)){if(cz)solid=z;continue}tile.source=null;if(debug>1)console.time("clipping");var k1=.5*options.buffer/options.extent,k2=.5-k1,k3=.5+k1,k4=1+k1,tl,bl,tr,br,left,right;tl=bl=tr=br=null;left=clip(features,z2,x-k1,x+k3,0,intersectX,tile.min[0],tile.max[0]);right=clip(features,z2,x+k2,x+k4,0,intersectX,tile.min[0],tile.max[0]);if(left){tl=clip(left,z2,y-k1,y+k3,1,intersectY,tile.min[1],tile.max[1]);bl=clip(left,z2,y+k2,y+k4,1,intersectY,tile.min[1],tile.max[1])}if(right){tr=clip(right,z2,y-k1,y+k3,1,intersectY,tile.min[1],tile.max[1]);br=clip(right,z2,y+k2,y+k4,1,intersectY,tile.min[1],tile.max[1])}if(debug>1)console.timeEnd("clipping");if(features.length){stack.push(tl||[],z+1,x*2,y*2);stack.push(bl||[],z+1,x*2,y*2+1);stack.push(tr||[],z+1,x*2+1,y*2);stack.push(br||[],z+1,x*2+1,y*2+1)}}return solid};GeoJSONVT.prototype.getTile=function(z,x,y){var options=this.options,extent=options.extent,debug=options.debug;var z2=1<<z;x=(x%z2+z2)%z2;var id=toID(z,x,y);if(this.tiles[id])return transform.tile(this.tiles[id],extent);if(debug>1)console.log("drilling down to z%d-%d-%d",z,x,y);var z0=z,x0=x,y0=y,parent;while(!parent&&z0>0){z0--;x0=Math.floor(x0/2);y0=Math.floor(y0/2);parent=this.tiles[toID(z0,x0,y0)]}if(!parent||!parent.source)return null;if(debug>1)console.log("found parent tile z%d-%d-%d",z0,x0,y0);if(isClippedSquare(parent,extent,options.buffer))return transform.tile(parent,extent);if(debug>1)console.time("drilling down");var solid=this.splitTile(parent.source,z0,x0,y0,z,x,y);if(debug>1)console.timeEnd("drilling down");if(solid!==null){var m=1<<z-solid;id=toID(solid,Math.floor(x/m),Math.floor(y/m))}return this.tiles[id]?transform.tile(this.tiles[id],extent):null};function toID(z,x,y){return((1<<z)*y+x)*32+z}function intersectX(a,b,x){return[x,(x-a[0])*(b[1]-a[1])/(b[0]-a[0])+a[1],1]}function intersectY(a,b,y){return[(y-a[1])*(b[0]-a[0])/(b[1]-a[1])+a[0],y,1]}function extend(dest,src){for(var i in src)dest[i]=src[i];return dest}function isClippedSquare(tile,extent,buffer){var features=tile.source;if(features.length!==1)return false;var feature=features[0];if(feature.type!==3||feature.geometry.length>1)return false;var len=feature.geometry[0].length;if(len!==5)return false;for(var i=0;i<len;i++){var p=transform.point(feature.geometry[0][i],extent,tile.z2,tile.x,tile.y);if(p[0]!==-buffer&&p[0]!==extent+buffer||p[1]!==-buffer&&p[1]!==extent+buffer)return false}return true}},{"./clip":146,"./convert":147,"./tile":151,"./transform":152,"./wrap":153}],150:[function(require,module,exports){"use strict";module.exports=simplify;function simplify(points,tolerance){var sqTolerance=tolerance*tolerance,len=points.length,first=0,last=len-1,stack=[],i,maxSqDist,sqDist,index;points[first][2]=1;points[last][2]=1;while(last){maxSqDist=0;for(i=first+1;i<last;i++){sqDist=getSqSegDist(points[i],points[first],points[last]);if(sqDist>maxSqDist){index=i;maxSqDist=sqDist}}if(maxSqDist>sqTolerance){points[index][2]=maxSqDist;stack.push(first);stack.push(index);first=index}else{last=stack.pop();first=stack.pop()}}}function getSqSegDist(p,a,b){var x=a[0],y=a[1],bx=b[0],by=b[1],px=p[0],py=p[1],dx=bx-x,dy=by-y;if(dx!==0||dy!==0){var t=((px-x)*dx+(py-y)*dy)/(dx*dx+dy*dy);if(t>1){x=bx;y=by}else if(t>0){x+=dx*t;y+=dy*t}}dx=px-x;dy=py-y;return dx*dx+dy*dy}},{}],151:[function(require,module,exports){"use strict";module.exports=createTile;function createTile(features,z2,tx,ty,tolerance,noSimplify){var tile={features:[],numPoints:0,numSimplified:0,numFeatures:0,source:null,x:tx,y:ty,z2:z2,transformed:false,min:[2,1],max:[-1,0]};for(var i=0;i<features.length;i++){tile.numFeatures++;addFeature(tile,features[i],tolerance,noSimplify);var min=features[i].min,max=features[i].max;if(min[0]<tile.min[0])tile.min[0]=min[0];if(min[1]<tile.min[1])tile.min[1]=min[1];if(max[0]>tile.max[0])tile.max[0]=max[0];if(max[1]>tile.max[1])tile.max[1]=max[1]}return tile}function addFeature(tile,feature,tolerance,noSimplify){var geom=feature.geometry,type=feature.type,simplified=[],sqTolerance=tolerance*tolerance,i,j,ring,p;if(type===1){for(i=0;i<geom.length;i++){simplified.push(geom[i]);tile.numPoints++;tile.numSimplified++}}else{for(i=0;i<geom.length;i++){ring=geom[i];if(!noSimplify&&(type===2&&ring.dist<tolerance||type===3&&ring.area<sqTolerance)){tile.numPoints+=ring.length;continue}var simplifiedRing=[];for(j=0;j<ring.length;j++){p=ring[j];if(noSimplify||p[2]>sqTolerance){simplifiedRing.push(p);tile.numSimplified++}tile.numPoints++}if(type===3)rewind(simplifiedRing,ring.outer);simplified.push(simplifiedRing)}}if(simplified.length){var tileFeature={geometry:simplified,type:type,tags:feature.tags||null};if(feature.id!==null){tileFeature.id=feature.id}tile.features.push(tileFeature)}}function rewind(ring,clockwise){var area=signedArea(ring);if(area<0===clockwise)ring.reverse()}function signedArea(ring){var sum=0;for(var i=0,len=ring.length,j=len-1,p1,p2;i<len;j=i++){p1=ring[i];p2=ring[j];sum+=(p2[0]-p1[0])*(p1[1]+p2[1])}return sum}},{}],152:[function(require,module,exports){"use strict";exports.tile=transformTile;exports.point=transformPoint;function transformTile(tile,extent){if(tile.transformed)return tile;var z2=tile.z2,tx=tile.x,ty=tile.y,i,j,k;for(i=0;i<tile.features.length;i++){var feature=tile.features[i],geom=feature.geometry,type=feature.type;if(type===1){for(j=0;j<geom.length;j++)geom[j]=transformPoint(geom[j],extent,z2,tx,ty)}else{for(j=0;j<geom.length;j++){var ring=geom[j];for(k=0;k<ring.length;k++)ring[k]=transformPoint(ring[k],extent,z2,tx,ty)}}}tile.transformed=true;return tile}function transformPoint(p,extent,z2,tx,ty){var x=Math.round(extent*(p[0]*z2-tx)),y=Math.round(extent*(p[1]*z2-ty));return[x,y]}},{}],153:[function(require,module,exports){"use strict";var clip=require("./clip");var createFeature=require("./feature");module.exports=wrap;function wrap(features,buffer,intersectX){var merged=features,left=clip(features,1,-1-buffer,buffer,0,intersectX,-1,2),right=clip(features,1,1-buffer,2+buffer,0,intersectX,-1,2);if(left||right){merged=clip(features,1,-buffer,1+buffer,0,intersectX,-1,2)||[];if(left)merged=shiftFeatureCoords(left,1).concat(merged);if(right)merged=merged.concat(shiftFeatureCoords(right,-1))}return merged}function shiftFeatureCoords(features,offset){var newFeatures=[];for(var i=0;i<features.length;i++){var feature=features[i],type=feature.type;var newGeometry;if(type===1){newGeometry=shiftCoords(feature.geometry,offset)}else{newGeometry=[];for(var j=0;j<feature.geometry.length;j++){newGeometry.push(shiftCoords(feature.geometry[j],offset))}}newFeatures.push(createFeature(feature.tags,type,newGeometry,feature.id))}return newFeatures}function shiftCoords(points,offset){var newPoints=[];newPoints.area=points.area;newPoints.dist=points.dist;for(var i=0;i<points.length;i++){newPoints.push([points[i][0]+offset,points[i][1],points[i][2]])}return newPoints}},{"./clip":146,"./feature":148}],154:[function(require,module,exports){exports.glMatrix=require("./gl-matrix/common.js");exports.mat2=require("./gl-matrix/mat2.js");exports.mat2d=require("./gl-matrix/mat2d.js");exports.mat3=require("./gl-matrix/mat3.js");exports.mat4=require("./gl-matrix/mat4.js");exports.quat=require("./gl-matrix/quat.js");exports.vec2=require("./gl-matrix/vec2.js");exports.vec3=require("./gl-matrix/vec3.js");exports.vec4=require("./gl-matrix/vec4.js")},{"./gl-matrix/common.js":155,"./gl-matrix/mat2.js":156,"./gl-matrix/mat2d.js":157,"./gl-matrix/mat3.js":158,"./gl-matrix/mat4.js":159,"./gl-matrix/quat.js":160,"./gl-matrix/vec2.js":161,"./gl-matrix/vec3.js":162,"./gl-matrix/vec4.js":163}],155:[function(require,module,exports){var glMatrix={};glMatrix.EPSILON=1e-6;glMatrix.ARRAY_TYPE=typeof Float32Array!=="undefined"?Float32Array:Array;glMatrix.RANDOM=Math.random;glMatrix.ENABLE_SIMD=false;glMatrix.SIMD_AVAILABLE=glMatrix.ARRAY_TYPE===Float32Array&&"SIMD"in this;glMatrix.USE_SIMD=glMatrix.ENABLE_SIMD&&glMatrix.SIMD_AVAILABLE;glMatrix.setMatrixArrayType=function(type){glMatrix.ARRAY_TYPE=type};var degree=Math.PI/180;glMatrix.toRadian=function(a){return a*degree};glMatrix.equals=function(a,b){return Math.abs(a-b)<=glMatrix.EPSILON*Math.max(1,Math.abs(a),Math.abs(b))};module.exports=glMatrix},{}],156:[function(require,module,exports){var glMatrix=require("./common.js");var mat2={};mat2.create=function(){var out=new glMatrix.ARRAY_TYPE(4);out[0]=1;out[1]=0;out[2]=0;out[3]=1;return out};mat2.clone=function(a){var out=new glMatrix.ARRAY_TYPE(4);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};mat2.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};mat2.identity=function(out){out[0]=1;out[1]=0;out[2]=0;out[3]=1;return out};mat2.fromValues=function(m00,m01,m10,m11){var out=new glMatrix.ARRAY_TYPE(4);out[0]=m00;out[1]=m01;out[2]=m10;out[3]=m11;return out};mat2.set=function(out,m00,m01,m10,m11){out[0]=m00;out[1]=m01;out[2]=m10;out[3]=m11;return out};mat2.transpose=function(out,a){if(out===a){var a1=a[1];out[1]=a[2];out[2]=a1}else{out[0]=a[0];out[1]=a[2];out[2]=a[1];out[3]=a[3]}return out};mat2.invert=function(out,a){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],det=a0*a3-a2*a1;if(!det){return null}det=1/det;out[0]=a3*det;out[1]=-a1*det;out[2]=-a2*det;out[3]=a0*det;return out};mat2.adjoint=function(out,a){var a0=a[0];out[0]=a[3];out[1]=-a[1];out[2]=-a[2];out[3]=a0;return out};mat2.determinant=function(a){return a[0]*a[3]-a[2]*a[1]};mat2.multiply=function(out,a,b){var a0=a[0],a1=a[1],a2=a[2],a3=a[3];var b0=b[0],b1=b[1],b2=b[2],b3=b[3];out[0]=a0*b0+a2*b1;out[1]=a1*b0+a3*b1;out[2]=a0*b2+a2*b3;out[3]=a1*b2+a3*b3;return out};mat2.mul=mat2.multiply;mat2.rotate=function(out,a,rad){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],s=Math.sin(rad),c=Math.cos(rad);out[0]=a0*c+a2*s;out[1]=a1*c+a3*s;out[2]=a0*-s+a2*c;out[3]=a1*-s+a3*c;return out};mat2.scale=function(out,a,v){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],v0=v[0],v1=v[1];out[0]=a0*v0;out[1]=a1*v0;out[2]=a2*v1;out[3]=a3*v1;return out};mat2.fromRotation=function(out,rad){var s=Math.sin(rad),c=Math.cos(rad);out[0]=c;out[1]=s;out[2]=-s;out[3]=c;return out};mat2.fromScaling=function(out,v){out[0]=v[0];out[1]=0;out[2]=0;out[3]=v[1];return out};mat2.str=function(a){return"mat2("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"};mat2.frob=function(a){return Math.sqrt(Math.pow(a[0],2)+Math.pow(a[1],2)+Math.pow(a[2],2)+Math.pow(a[3],2))};mat2.LDU=function(L,D,U,a){L[2]=a[2]/a[0];U[0]=a[0];U[1]=a[1];U[3]=a[3]-L[2]*U[1];return[L,D,U]};mat2.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];out[2]=a[2]+b[2];out[3]=a[3]+b[3];return out};mat2.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];out[2]=a[2]-b[2];out[3]=a[3]-b[3];return out};mat2.sub=mat2.subtract;mat2.exactEquals=function(a,b){return a[0]===b[0]&&a[1]===b[1]&&a[2]===b[2]&&a[3]===b[3]};mat2.equals=function(a,b){var a0=a[0],a1=a[1],a2=a[2],a3=a[3];var b0=b[0],b1=b[1],b2=b[2],b3=b[3];return Math.abs(a0-b0)<=glMatrix.EPSILON*Math.max(1,Math.abs(a0),Math.abs(b0))&&Math.abs(a1-b1)<=glMatrix.EPSILON*Math.max(1,Math.abs(a1),Math.abs(b1))&&Math.abs(a2-b2)<=glMatrix.EPSILON*Math.max(1,Math.abs(a2),Math.abs(b2))&&Math.abs(a3-b3)<=glMatrix.EPSILON*Math.max(1,Math.abs(a3),Math.abs(b3))};mat2.multiplyScalar=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;out[2]=a[2]*b;out[3]=a[3]*b;return out};mat2.multiplyScalarAndAdd=function(out,a,b,scale){out[0]=a[0]+b[0]*scale;out[1]=a[1]+b[1]*scale;out[2]=a[2]+b[2]*scale;out[3]=a[3]+b[3]*scale;return out};module.exports=mat2},{"./common.js":155}],157:[function(require,module,exports){var glMatrix=require("./common.js");var mat2d={};mat2d.create=function(){var out=new glMatrix.ARRAY_TYPE(6);out[0]=1;out[1]=0;out[2]=0;out[3]=1;out[4]=0;out[5]=0;return out};mat2d.clone=function(a){var out=new glMatrix.ARRAY_TYPE(6);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];return out};mat2d.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];return out};mat2d.identity=function(out){out[0]=1;out[1]=0;out[2]=0;out[3]=1;out[4]=0;out[5]=0;return out};mat2d.fromValues=function(a,b,c,d,tx,ty){var out=new glMatrix.ARRAY_TYPE(6);out[0]=a;out[1]=b;out[2]=c;out[3]=d;out[4]=tx;out[5]=ty;return out};mat2d.set=function(out,a,b,c,d,tx,ty){out[0]=a;out[1]=b;out[2]=c;out[3]=d;out[4]=tx;out[5]=ty;return out};mat2d.invert=function(out,a){var aa=a[0],ab=a[1],ac=a[2],ad=a[3],atx=a[4],aty=a[5];var det=aa*ad-ab*ac;if(!det){return null}det=1/det;out[0]=ad*det;out[1]=-ab*det;out[2]=-ac*det;out[3]=aa*det;out[4]=(ac*aty-ad*atx)*det;out[5]=(ab*atx-aa*aty)*det;return out};mat2d.determinant=function(a){return a[0]*a[3]-a[1]*a[2]};mat2d.multiply=function(out,a,b){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],a4=a[4],a5=a[5],b0=b[0],b1=b[1],b2=b[2],b3=b[3],b4=b[4],b5=b[5];out[0]=a0*b0+a2*b1;out[1]=a1*b0+a3*b1;out[2]=a0*b2+a2*b3;out[3]=a1*b2+a3*b3;out[4]=a0*b4+a2*b5+a4;out[5]=a1*b4+a3*b5+a5;return out};mat2d.mul=mat2d.multiply;mat2d.rotate=function(out,a,rad){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],a4=a[4],a5=a[5],s=Math.sin(rad),c=Math.cos(rad);out[0]=a0*c+a2*s;out[1]=a1*c+a3*s;out[2]=a0*-s+a2*c;out[3]=a1*-s+a3*c;out[4]=a4;out[5]=a5;return out};mat2d.scale=function(out,a,v){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],a4=a[4],a5=a[5],v0=v[0],v1=v[1];out[0]=a0*v0;out[1]=a1*v0;out[2]=a2*v1;out[3]=a3*v1;out[4]=a4;out[5]=a5;return out};mat2d.translate=function(out,a,v){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],a4=a[4],a5=a[5],v0=v[0],v1=v[1];out[0]=a0;out[1]=a1;out[2]=a2;out[3]=a3;out[4]=a0*v0+a2*v1+a4;out[5]=a1*v0+a3*v1+a5;return out};mat2d.fromRotation=function(out,rad){var s=Math.sin(rad),c=Math.cos(rad);out[0]=c;out[1]=s;out[2]=-s;out[3]=c;out[4]=0;out[5]=0;return out};mat2d.fromScaling=function(out,v){out[0]=v[0];out[1]=0;out[2]=0;out[3]=v[1];out[4]=0;out[5]=0;return out};mat2d.fromTranslation=function(out,v){out[0]=1;out[1]=0;out[2]=0;out[3]=1;out[4]=v[0];out[5]=v[1];return out};mat2d.str=function(a){return"mat2d("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+", "+a[4]+", "+a[5]+")"};mat2d.frob=function(a){return Math.sqrt(Math.pow(a[0],2)+Math.pow(a[1],2)+Math.pow(a[2],2)+Math.pow(a[3],2)+Math.pow(a[4],2)+Math.pow(a[5],2)+1)};mat2d.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];out[2]=a[2]+b[2];out[3]=a[3]+b[3];out[4]=a[4]+b[4];out[5]=a[5]+b[5];return out};mat2d.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];out[2]=a[2]-b[2];out[3]=a[3]-b[3];out[4]=a[4]-b[4];out[5]=a[5]-b[5];return out};mat2d.sub=mat2d.subtract;mat2d.multiplyScalar=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;out[2]=a[2]*b;out[3]=a[3]*b;out[4]=a[4]*b;out[5]=a[5]*b;return out};mat2d.multiplyScalarAndAdd=function(out,a,b,scale){out[0]=a[0]+b[0]*scale;out[1]=a[1]+b[1]*scale;out[2]=a[2]+b[2]*scale;out[3]=a[3]+b[3]*scale;out[4]=a[4]+b[4]*scale;out[5]=a[5]+b[5]*scale;return out};mat2d.exactEquals=function(a,b){return a[0]===b[0]&&a[1]===b[1]&&a[2]===b[2]&&a[3]===b[3]&&a[4]===b[4]&&a[5]===b[5]};mat2d.equals=function(a,b){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],a4=a[4],a5=a[5];var b0=b[0],b1=b[1],b2=b[2],b3=b[3],b4=b[4],b5=b[5];return Math.abs(a0-b0)<=glMatrix.EPSILON*Math.max(1,Math.abs(a0),Math.abs(b0))&&Math.abs(a1-b1)<=glMatrix.EPSILON*Math.max(1,Math.abs(a1),Math.abs(b1))&&Math.abs(a2-b2)<=glMatrix.EPSILON*Math.max(1,Math.abs(a2),Math.abs(b2))&&Math.abs(a3-b3)<=glMatrix.EPSILON*Math.max(1,Math.abs(a3),Math.abs(b3))&&Math.abs(a4-b4)<=glMatrix.EPSILON*Math.max(1,Math.abs(a4),Math.abs(b4))&&Math.abs(a5-b5)<=glMatrix.EPSILON*Math.max(1,Math.abs(a5),Math.abs(b5))};module.exports=mat2d},{"./common.js":155}],158:[function(require,module,exports){var glMatrix=require("./common.js");var mat3={};mat3.create=function(){var out=new glMatrix.ARRAY_TYPE(9);out[0]=1;out[1]=0;out[2]=0;out[3]=0;out[4]=1;out[5]=0;out[6]=0;out[7]=0;out[8]=1;return out};mat3.fromMat4=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[4];out[4]=a[5];out[5]=a[6];out[6]=a[8];out[7]=a[9];out[8]=a[10];return out};mat3.clone=function(a){var out=new glMatrix.ARRAY_TYPE(9);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];return out};mat3.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];return out};mat3.fromValues=function(m00,m01,m02,m10,m11,m12,m20,m21,m22){var out=new glMatrix.ARRAY_TYPE(9);out[0]=m00;out[1]=m01;out[2]=m02;out[3]=m10;out[4]=m11;out[5]=m12;out[6]=m20;out[7]=m21;out[8]=m22;return out};mat3.set=function(out,m00,m01,m02,m10,m11,m12,m20,m21,m22){out[0]=m00;out[1]=m01;out[2]=m02;out[3]=m10;out[4]=m11;out[5]=m12;out[6]=m20;out[7]=m21;out[8]=m22;return out};mat3.identity=function(out){out[0]=1;out[1]=0;out[2]=0;out[3]=0;out[4]=1;out[5]=0;out[6]=0;out[7]=0;out[8]=1;return out};mat3.transpose=function(out,a){if(out===a){var a01=a[1],a02=a[2],a12=a[5];out[1]=a[3];out[2]=a[6];out[3]=a01;out[5]=a[7];out[6]=a02;out[7]=a12}else{out[0]=a[0];out[1]=a[3];out[2]=a[6];out[3]=a[1];out[4]=a[4];out[5]=a[7];out[6]=a[2];out[7]=a[5];out[8]=a[8]}return out};mat3.invert=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8],b01=a22*a11-a12*a21,b11=-a22*a10+a12*a20,b21=a21*a10-a11*a20,det=a00*b01+a01*b11+a02*b21;if(!det){return null}det=1/det;out[0]=b01*det;out[1]=(-a22*a01+a02*a21)*det;out[2]=(a12*a01-a02*a11)*det;out[3]=b11*det;out[4]=(a22*a00-a02*a20)*det;out[5]=(-a12*a00+a02*a10)*det;out[6]=b21*det;out[7]=(-a21*a00+a01*a20)*det;out[8]=(a11*a00-a01*a10)*det;return out};mat3.adjoint=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8];out[0]=a11*a22-a12*a21;out[1]=a02*a21-a01*a22;out[2]=a01*a12-a02*a11;out[3]=a12*a20-a10*a22;out[4]=a00*a22-a02*a20;out[5]=a02*a10-a00*a12;out[6]=a10*a21-a11*a20;out[7]=a01*a20-a00*a21;out[8]=a00*a11-a01*a10;return out};mat3.determinant=function(a){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8];return a00*(a22*a11-a12*a21)+a01*(-a22*a10+a12*a20)+a02*(a21*a10-a11*a20)};mat3.multiply=function(out,a,b){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8],b00=b[0],b01=b[1],b02=b[2],b10=b[3],b11=b[4],b12=b[5],b20=b[6],b21=b[7],b22=b[8];out[0]=b00*a00+b01*a10+b02*a20;out[1]=b00*a01+b01*a11+b02*a21;out[2]=b00*a02+b01*a12+b02*a22;out[3]=b10*a00+b11*a10+b12*a20;out[4]=b10*a01+b11*a11+b12*a21;out[5]=b10*a02+b11*a12+b12*a22;out[6]=b20*a00+b21*a10+b22*a20;out[7]=b20*a01+b21*a11+b22*a21;out[8]=b20*a02+b21*a12+b22*a22;return out};mat3.mul=mat3.multiply;mat3.translate=function(out,a,v){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8],x=v[0],y=v[1];out[0]=a00;out[1]=a01;out[2]=a02;out[3]=a10;out[4]=a11;out[5]=a12;out[6]=x*a00+y*a10+a20;out[7]=x*a01+y*a11+a21;out[8]=x*a02+y*a12+a22;return out};mat3.rotate=function(out,a,rad){var a00=a[0],a01=a[1],a02=a[2],a10=a[3],a11=a[4],a12=a[5],a20=a[6],a21=a[7],a22=a[8],s=Math.sin(rad),c=Math.cos(rad);out[0]=c*a00+s*a10;out[1]=c*a01+s*a11;out[2]=c*a02+s*a12;out[3]=c*a10-s*a00;out[4]=c*a11-s*a01;out[5]=c*a12-s*a02;out[6]=a20;out[7]=a21;out[8]=a22;return out};mat3.scale=function(out,a,v){var x=v[0],y=v[1];out[0]=x*a[0];out[1]=x*a[1];out[2]=x*a[2];out[3]=y*a[3];out[4]=y*a[4];out[5]=y*a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];return out};mat3.fromTranslation=function(out,v){out[0]=1;out[1]=0;out[2]=0;out[3]=0;out[4]=1;out[5]=0;out[6]=v[0];out[7]=v[1];out[8]=1;return out};mat3.fromRotation=function(out,rad){var s=Math.sin(rad),c=Math.cos(rad);out[0]=c;out[1]=s;out[2]=0;out[3]=-s;out[4]=c;out[5]=0;out[6]=0;out[7]=0;out[8]=1;return out};mat3.fromScaling=function(out,v){out[0]=v[0];out[1]=0;out[2]=0;out[3]=0;out[4]=v[1];out[5]=0;out[6]=0;out[7]=0;out[8]=1;return out};mat3.fromMat2d=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=0;out[3]=a[2];out[4]=a[3];out[5]=0;out[6]=a[4];out[7]=a[5];out[8]=1;return out};mat3.fromQuat=function(out,q){var x=q[0],y=q[1],z=q[2],w=q[3],x2=x+x,y2=y+y,z2=z+z,xx=x*x2,yx=y*x2,yy=y*y2,zx=z*x2,zy=z*y2,zz=z*z2,wx=w*x2,wy=w*y2,wz=w*z2;out[0]=1-yy-zz;out[3]=yx-wz;out[6]=zx+wy;out[1]=yx+wz;out[4]=1-xx-zz;out[7]=zy-wx;out[2]=zx-wy;out[5]=zy+wx;out[8]=1-xx-yy;return out};mat3.normalFromMat4=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15],b00=a00*a11-a01*a10,b01=a00*a12-a02*a10,b02=a00*a13-a03*a10,b03=a01*a12-a02*a11,b04=a01*a13-a03*a11,b05=a02*a13-a03*a12,b06=a20*a31-a21*a30,b07=a20*a32-a22*a30,b08=a20*a33-a23*a30,b09=a21*a32-a22*a31,b10=a21*a33-a23*a31,b11=a22*a33-a23*a32,det=b00*b11-b01*b10+b02*b09+b03*b08-b04*b07+b05*b06;if(!det){return null}det=1/det;out[0]=(a11*b11-a12*b10+a13*b09)*det;out[1]=(a12*b08-a10*b11-a13*b07)*det;out[2]=(a10*b10-a11*b08+a13*b06)*det;out[3]=(a02*b10-a01*b11-a03*b09)*det;out[4]=(a00*b11-a02*b08+a03*b07)*det;out[5]=(a01*b08-a00*b10-a03*b06)*det;out[6]=(a31*b05-a32*b04+a33*b03)*det;out[7]=(a32*b02-a30*b05-a33*b01)*det;out[8]=(a30*b04-a31*b02+a33*b00)*det;return out};mat3.str=function(a){return"mat3("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+", "+a[4]+", "+a[5]+", "+a[6]+", "+a[7]+", "+a[8]+")"};mat3.frob=function(a){return Math.sqrt(Math.pow(a[0],2)+Math.pow(a[1],2)+Math.pow(a[2],2)+Math.pow(a[3],2)+Math.pow(a[4],2)+Math.pow(a[5],2)+Math.pow(a[6],2)+Math.pow(a[7],2)+Math.pow(a[8],2))};mat3.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];out[2]=a[2]+b[2];out[3]=a[3]+b[3];out[4]=a[4]+b[4];out[5]=a[5]+b[5];out[6]=a[6]+b[6];out[7]=a[7]+b[7];out[8]=a[8]+b[8];return out};mat3.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];out[2]=a[2]-b[2];out[3]=a[3]-b[3];out[4]=a[4]-b[4];out[5]=a[5]-b[5];out[6]=a[6]-b[6];out[7]=a[7]-b[7];out[8]=a[8]-b[8];return out};mat3.sub=mat3.subtract;mat3.multiplyScalar=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;out[2]=a[2]*b;out[3]=a[3]*b;out[4]=a[4]*b;out[5]=a[5]*b;out[6]=a[6]*b;out[7]=a[7]*b;out[8]=a[8]*b;return out};mat3.multiplyScalarAndAdd=function(out,a,b,scale){out[0]=a[0]+b[0]*scale;out[1]=a[1]+b[1]*scale;out[2]=a[2]+b[2]*scale;out[3]=a[3]+b[3]*scale;out[4]=a[4]+b[4]*scale;out[5]=a[5]+b[5]*scale;out[6]=a[6]+b[6]*scale;out[7]=a[7]+b[7]*scale;out[8]=a[8]+b[8]*scale;return out};mat3.exactEquals=function(a,b){return a[0]===b[0]&&a[1]===b[1]&&a[2]===b[2]&&a[3]===b[3]&&a[4]===b[4]&&a[5]===b[5]&&a[6]===b[6]&&a[7]===b[7]&&a[8]===b[8]};mat3.equals=function(a,b){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],a4=a[4],a5=a[5],a6=a[6],a7=a[7],a8=a[8];var b0=b[0],b1=b[1],b2=b[2],b3=b[3],b4=b[4],b5=b[5],b6=a[6],b7=b[7],b8=b[8];return Math.abs(a0-b0)<=glMatrix.EPSILON*Math.max(1,Math.abs(a0),Math.abs(b0))&&Math.abs(a1-b1)<=glMatrix.EPSILON*Math.max(1,Math.abs(a1),Math.abs(b1))&&Math.abs(a2-b2)<=glMatrix.EPSILON*Math.max(1,Math.abs(a2),Math.abs(b2))&&Math.abs(a3-b3)<=glMatrix.EPSILON*Math.max(1,Math.abs(a3),Math.abs(b3))&&Math.abs(a4-b4)<=glMatrix.EPSILON*Math.max(1,Math.abs(a4),Math.abs(b4))&&Math.abs(a5-b5)<=glMatrix.EPSILON*Math.max(1,Math.abs(a5),Math.abs(b5))&&Math.abs(a6-b6)<=glMatrix.EPSILON*Math.max(1,Math.abs(a6),Math.abs(b6))&&Math.abs(a7-b7)<=glMatrix.EPSILON*Math.max(1,Math.abs(a7),Math.abs(b7))&&Math.abs(a8-b8)<=glMatrix.EPSILON*Math.max(1,Math.abs(a8),Math.abs(b8))};module.exports=mat3},{"./common.js":155}],159:[function(require,module,exports){var glMatrix=require("./common.js");var mat4={scalar:{},SIMD:{}};mat4.create=function(){var out=new glMatrix.ARRAY_TYPE(16);out[0]=1;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=1;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=1;out[11]=0;out[12]=0;out[13]=0;out[14]=0;out[15]=1;return out};mat4.clone=function(a){var out=new glMatrix.ARRAY_TYPE(16);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];out[9]=a[9];out[10]=a[10];out[11]=a[11];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15];return out};mat4.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];out[9]=a[9];out[10]=a[10];out[11]=a[11];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15];return out};mat4.fromValues=function(m00,m01,m02,m03,m10,m11,m12,m13,m20,m21,m22,m23,m30,m31,m32,m33){var out=new glMatrix.ARRAY_TYPE(16);out[0]=m00;out[1]=m01;out[2]=m02;out[3]=m03;out[4]=m10;out[5]=m11;out[6]=m12;out[7]=m13;out[8]=m20;out[9]=m21;out[10]=m22;out[11]=m23;out[12]=m30;out[13]=m31;out[14]=m32;out[15]=m33;return out};mat4.set=function(out,m00,m01,m02,m03,m10,m11,m12,m13,m20,m21,m22,m23,m30,m31,m32,m33){out[0]=m00;out[1]=m01;out[2]=m02;out[3]=m03;out[4]=m10;out[5]=m11;out[6]=m12;out[7]=m13;out[8]=m20;out[9]=m21;out[10]=m22;out[11]=m23;out[12]=m30;out[13]=m31;out[14]=m32;out[15]=m33;return out};mat4.identity=function(out){out[0]=1;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=1;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=1;out[11]=0;out[12]=0;out[13]=0;out[14]=0;out[15]=1;return out};mat4.scalar.transpose=function(out,a){if(out===a){var a01=a[1],a02=a[2],a03=a[3],a12=a[6],a13=a[7],a23=a[11];out[1]=a[4];out[2]=a[8];out[3]=a[12];out[4]=a01;out[6]=a[9];out[7]=a[13];out[8]=a02;out[9]=a12;out[11]=a[14];out[12]=a03;out[13]=a13;out[14]=a23}else{out[0]=a[0];out[1]=a[4];out[2]=a[8];out[3]=a[12];out[4]=a[1];out[5]=a[5];out[6]=a[9];out[7]=a[13];out[8]=a[2];out[9]=a[6];out[10]=a[10];out[11]=a[14];out[12]=a[3];out[13]=a[7];out[14]=a[11];out[15]=a[15]}return out};mat4.SIMD.transpose=function(out,a){var a0,a1,a2,a3,tmp01,tmp23,out0,out1,out2,out3;a0=SIMD.Float32x4.load(a,0);a1=SIMD.Float32x4.load(a,4);a2=SIMD.Float32x4.load(a,8);a3=SIMD.Float32x4.load(a,12);tmp01=SIMD.Float32x4.shuffle(a0,a1,0,1,4,5);tmp23=SIMD.Float32x4.shuffle(a2,a3,0,1,4,5);out0=SIMD.Float32x4.shuffle(tmp01,tmp23,0,2,4,6);out1=SIMD.Float32x4.shuffle(tmp01,tmp23,1,3,5,7);SIMD.Float32x4.store(out,0,out0);SIMD.Float32x4.store(out,4,out1);tmp01=SIMD.Float32x4.shuffle(a0,a1,2,3,6,7);tmp23=SIMD.Float32x4.shuffle(a2,a3,2,3,6,7);out2=SIMD.Float32x4.shuffle(tmp01,tmp23,0,2,4,6);out3=SIMD.Float32x4.shuffle(tmp01,tmp23,1,3,5,7);SIMD.Float32x4.store(out,8,out2);SIMD.Float32x4.store(out,12,out3);return out};mat4.transpose=glMatrix.USE_SIMD?mat4.SIMD.transpose:mat4.scalar.transpose;mat4.scalar.invert=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15],b00=a00*a11-a01*a10,b01=a00*a12-a02*a10,b02=a00*a13-a03*a10,b03=a01*a12-a02*a11,b04=a01*a13-a03*a11,b05=a02*a13-a03*a12,b06=a20*a31-a21*a30,b07=a20*a32-a22*a30,b08=a20*a33-a23*a30,b09=a21*a32-a22*a31,b10=a21*a33-a23*a31,b11=a22*a33-a23*a32,det=b00*b11-b01*b10+b02*b09+b03*b08-b04*b07+b05*b06;if(!det){return null}det=1/det;out[0]=(a11*b11-a12*b10+a13*b09)*det;out[1]=(a02*b10-a01*b11-a03*b09)*det;out[2]=(a31*b05-a32*b04+a33*b03)*det;out[3]=(a22*b04-a21*b05-a23*b03)*det;out[4]=(a12*b08-a10*b11-a13*b07)*det;out[5]=(a00*b11-a02*b08+a03*b07)*det;out[6]=(a32*b02-a30*b05-a33*b01)*det;out[7]=(a20*b05-a22*b02+a23*b01)*det;out[8]=(a10*b10-a11*b08+a13*b06)*det;out[9]=(a01*b08-a00*b10-a03*b06)*det;out[10]=(a30*b04-a31*b02+a33*b00)*det;out[11]=(a21*b02-a20*b04-a23*b00)*det;out[12]=(a11*b07-a10*b09-a12*b06)*det;out[13]=(a00*b09-a01*b07+a02*b06)*det;out[14]=(a31*b01-a30*b03-a32*b00)*det;out[15]=(a20*b03-a21*b01+a22*b00)*det;return out};mat4.SIMD.invert=function(out,a){var row0,row1,row2,row3,tmp1,minor0,minor1,minor2,minor3,det,a0=SIMD.Float32x4.load(a,0),a1=SIMD.Float32x4.load(a,4),a2=SIMD.Float32x4.load(a,8),a3=SIMD.Float32x4.load(a,12);tmp1=SIMD.Float32x4.shuffle(a0,a1,0,1,4,5);row1=SIMD.Float32x4.shuffle(a2,a3,0,1,4,5);row0=SIMD.Float32x4.shuffle(tmp1,row1,0,2,4,6);row1=SIMD.Float32x4.shuffle(row1,tmp1,1,3,5,7);tmp1=SIMD.Float32x4.shuffle(a0,a1,2,3,6,7);row3=SIMD.Float32x4.shuffle(a2,a3,2,3,6,7);row2=SIMD.Float32x4.shuffle(tmp1,row3,0,2,4,6);row3=SIMD.Float32x4.shuffle(row3,tmp1,1,3,5,7);tmp1=SIMD.Float32x4.mul(row2,row3);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);minor0=SIMD.Float32x4.mul(row1,tmp1);minor1=SIMD.Float32x4.mul(row0,tmp1);tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor0=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row1,tmp1),minor0);minor1=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row0,tmp1),minor1);minor1=SIMD.Float32x4.swizzle(minor1,2,3,0,1);tmp1=SIMD.Float32x4.mul(row1,row2);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);minor0=SIMD.Float32x4.add(SIMD.Float32x4.mul(row3,tmp1),minor0);minor3=SIMD.Float32x4.mul(row0,tmp1);tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor0=SIMD.Float32x4.sub(minor0,SIMD.Float32x4.mul(row3,tmp1));minor3=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row0,tmp1),minor3);minor3=SIMD.Float32x4.swizzle(minor3,2,3,0,1);tmp1=SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(row1,2,3,0,1),row3);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);row2=SIMD.Float32x4.swizzle(row2,2,3,0,1);minor0=SIMD.Float32x4.add(SIMD.Float32x4.mul(row2,tmp1),minor0);minor2=SIMD.Float32x4.mul(row0,tmp1);tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor0=SIMD.Float32x4.sub(minor0,SIMD.Float32x4.mul(row2,tmp1));minor2=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row0,tmp1),minor2);minor2=SIMD.Float32x4.swizzle(minor2,2,3,0,1);tmp1=SIMD.Float32x4.mul(row0,row1);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);minor2=SIMD.Float32x4.add(SIMD.Float32x4.mul(row3,tmp1),minor2);minor3=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row2,tmp1),minor3);tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor2=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row3,tmp1),minor2);minor3=SIMD.Float32x4.sub(minor3,SIMD.Float32x4.mul(row2,tmp1));tmp1=SIMD.Float32x4.mul(row0,row3);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);minor1=SIMD.Float32x4.sub(minor1,SIMD.Float32x4.mul(row2,tmp1));minor2=SIMD.Float32x4.add(SIMD.Float32x4.mul(row1,tmp1),minor2);tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor1=SIMD.Float32x4.add(SIMD.Float32x4.mul(row2,tmp1),minor1);minor2=SIMD.Float32x4.sub(minor2,SIMD.Float32x4.mul(row1,tmp1));tmp1=SIMD.Float32x4.mul(row0,row2);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);
minor1=SIMD.Float32x4.add(SIMD.Float32x4.mul(row3,tmp1),minor1);minor3=SIMD.Float32x4.sub(minor3,SIMD.Float32x4.mul(row1,tmp1));tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor1=SIMD.Float32x4.sub(minor1,SIMD.Float32x4.mul(row3,tmp1));minor3=SIMD.Float32x4.add(SIMD.Float32x4.mul(row1,tmp1),minor3);det=SIMD.Float32x4.mul(row0,minor0);det=SIMD.Float32x4.add(SIMD.Float32x4.swizzle(det,2,3,0,1),det);det=SIMD.Float32x4.add(SIMD.Float32x4.swizzle(det,1,0,3,2),det);tmp1=SIMD.Float32x4.reciprocalApproximation(det);det=SIMD.Float32x4.sub(SIMD.Float32x4.add(tmp1,tmp1),SIMD.Float32x4.mul(det,SIMD.Float32x4.mul(tmp1,tmp1)));det=SIMD.Float32x4.swizzle(det,0,0,0,0);if(!det){return null}SIMD.Float32x4.store(out,0,SIMD.Float32x4.mul(det,minor0));SIMD.Float32x4.store(out,4,SIMD.Float32x4.mul(det,minor1));SIMD.Float32x4.store(out,8,SIMD.Float32x4.mul(det,minor2));SIMD.Float32x4.store(out,12,SIMD.Float32x4.mul(det,minor3));return out};mat4.invert=glMatrix.USE_SIMD?mat4.SIMD.invert:mat4.scalar.invert;mat4.scalar.adjoint=function(out,a){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15];out[0]=a11*(a22*a33-a23*a32)-a21*(a12*a33-a13*a32)+a31*(a12*a23-a13*a22);out[1]=-(a01*(a22*a33-a23*a32)-a21*(a02*a33-a03*a32)+a31*(a02*a23-a03*a22));out[2]=a01*(a12*a33-a13*a32)-a11*(a02*a33-a03*a32)+a31*(a02*a13-a03*a12);out[3]=-(a01*(a12*a23-a13*a22)-a11*(a02*a23-a03*a22)+a21*(a02*a13-a03*a12));out[4]=-(a10*(a22*a33-a23*a32)-a20*(a12*a33-a13*a32)+a30*(a12*a23-a13*a22));out[5]=a00*(a22*a33-a23*a32)-a20*(a02*a33-a03*a32)+a30*(a02*a23-a03*a22);out[6]=-(a00*(a12*a33-a13*a32)-a10*(a02*a33-a03*a32)+a30*(a02*a13-a03*a12));out[7]=a00*(a12*a23-a13*a22)-a10*(a02*a23-a03*a22)+a20*(a02*a13-a03*a12);out[8]=a10*(a21*a33-a23*a31)-a20*(a11*a33-a13*a31)+a30*(a11*a23-a13*a21);out[9]=-(a00*(a21*a33-a23*a31)-a20*(a01*a33-a03*a31)+a30*(a01*a23-a03*a21));out[10]=a00*(a11*a33-a13*a31)-a10*(a01*a33-a03*a31)+a30*(a01*a13-a03*a11);out[11]=-(a00*(a11*a23-a13*a21)-a10*(a01*a23-a03*a21)+a20*(a01*a13-a03*a11));out[12]=-(a10*(a21*a32-a22*a31)-a20*(a11*a32-a12*a31)+a30*(a11*a22-a12*a21));out[13]=a00*(a21*a32-a22*a31)-a20*(a01*a32-a02*a31)+a30*(a01*a22-a02*a21);out[14]=-(a00*(a11*a32-a12*a31)-a10*(a01*a32-a02*a31)+a30*(a01*a12-a02*a11));out[15]=a00*(a11*a22-a12*a21)-a10*(a01*a22-a02*a21)+a20*(a01*a12-a02*a11);return out};mat4.SIMD.adjoint=function(out,a){var a0,a1,a2,a3;var row0,row1,row2,row3;var tmp1;var minor0,minor1,minor2,minor3;var a0=SIMD.Float32x4.load(a,0);var a1=SIMD.Float32x4.load(a,4);var a2=SIMD.Float32x4.load(a,8);var a3=SIMD.Float32x4.load(a,12);tmp1=SIMD.Float32x4.shuffle(a0,a1,0,1,4,5);row1=SIMD.Float32x4.shuffle(a2,a3,0,1,4,5);row0=SIMD.Float32x4.shuffle(tmp1,row1,0,2,4,6);row1=SIMD.Float32x4.shuffle(row1,tmp1,1,3,5,7);tmp1=SIMD.Float32x4.shuffle(a0,a1,2,3,6,7);row3=SIMD.Float32x4.shuffle(a2,a3,2,3,6,7);row2=SIMD.Float32x4.shuffle(tmp1,row3,0,2,4,6);row3=SIMD.Float32x4.shuffle(row3,tmp1,1,3,5,7);tmp1=SIMD.Float32x4.mul(row2,row3);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);minor0=SIMD.Float32x4.mul(row1,tmp1);minor1=SIMD.Float32x4.mul(row0,tmp1);tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor0=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row1,tmp1),minor0);minor1=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row0,tmp1),minor1);minor1=SIMD.Float32x4.swizzle(minor1,2,3,0,1);tmp1=SIMD.Float32x4.mul(row1,row2);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);minor0=SIMD.Float32x4.add(SIMD.Float32x4.mul(row3,tmp1),minor0);minor3=SIMD.Float32x4.mul(row0,tmp1);tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor0=SIMD.Float32x4.sub(minor0,SIMD.Float32x4.mul(row3,tmp1));minor3=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row0,tmp1),minor3);minor3=SIMD.Float32x4.swizzle(minor3,2,3,0,1);tmp1=SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(row1,2,3,0,1),row3);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);row2=SIMD.Float32x4.swizzle(row2,2,3,0,1);minor0=SIMD.Float32x4.add(SIMD.Float32x4.mul(row2,tmp1),minor0);minor2=SIMD.Float32x4.mul(row0,tmp1);tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor0=SIMD.Float32x4.sub(minor0,SIMD.Float32x4.mul(row2,tmp1));minor2=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row0,tmp1),minor2);minor2=SIMD.Float32x4.swizzle(minor2,2,3,0,1);tmp1=SIMD.Float32x4.mul(row0,row1);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);minor2=SIMD.Float32x4.add(SIMD.Float32x4.mul(row3,tmp1),minor2);minor3=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row2,tmp1),minor3);tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor2=SIMD.Float32x4.sub(SIMD.Float32x4.mul(row3,tmp1),minor2);minor3=SIMD.Float32x4.sub(minor3,SIMD.Float32x4.mul(row2,tmp1));tmp1=SIMD.Float32x4.mul(row0,row3);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);minor1=SIMD.Float32x4.sub(minor1,SIMD.Float32x4.mul(row2,tmp1));minor2=SIMD.Float32x4.add(SIMD.Float32x4.mul(row1,tmp1),minor2);tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor1=SIMD.Float32x4.add(SIMD.Float32x4.mul(row2,tmp1),minor1);minor2=SIMD.Float32x4.sub(minor2,SIMD.Float32x4.mul(row1,tmp1));tmp1=SIMD.Float32x4.mul(row0,row2);tmp1=SIMD.Float32x4.swizzle(tmp1,1,0,3,2);minor1=SIMD.Float32x4.add(SIMD.Float32x4.mul(row3,tmp1),minor1);minor3=SIMD.Float32x4.sub(minor3,SIMD.Float32x4.mul(row1,tmp1));tmp1=SIMD.Float32x4.swizzle(tmp1,2,3,0,1);minor1=SIMD.Float32x4.sub(minor1,SIMD.Float32x4.mul(row3,tmp1));minor3=SIMD.Float32x4.add(SIMD.Float32x4.mul(row1,tmp1),minor3);SIMD.Float32x4.store(out,0,minor0);SIMD.Float32x4.store(out,4,minor1);SIMD.Float32x4.store(out,8,minor2);SIMD.Float32x4.store(out,12,minor3);return out};mat4.adjoint=glMatrix.USE_SIMD?mat4.SIMD.adjoint:mat4.scalar.adjoint;mat4.determinant=function(a){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15],b00=a00*a11-a01*a10,b01=a00*a12-a02*a10,b02=a00*a13-a03*a10,b03=a01*a12-a02*a11,b04=a01*a13-a03*a11,b05=a02*a13-a03*a12,b06=a20*a31-a21*a30,b07=a20*a32-a22*a30,b08=a20*a33-a23*a30,b09=a21*a32-a22*a31,b10=a21*a33-a23*a31,b11=a22*a33-a23*a32;return b00*b11-b01*b10+b02*b09+b03*b08-b04*b07+b05*b06};mat4.SIMD.multiply=function(out,a,b){var a0=SIMD.Float32x4.load(a,0);var a1=SIMD.Float32x4.load(a,4);var a2=SIMD.Float32x4.load(a,8);var a3=SIMD.Float32x4.load(a,12);var b0=SIMD.Float32x4.load(b,0);var out0=SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b0,0,0,0,0),a0),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b0,1,1,1,1),a1),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b0,2,2,2,2),a2),SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b0,3,3,3,3),a3))));SIMD.Float32x4.store(out,0,out0);var b1=SIMD.Float32x4.load(b,4);var out1=SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b1,0,0,0,0),a0),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b1,1,1,1,1),a1),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b1,2,2,2,2),a2),SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b1,3,3,3,3),a3))));SIMD.Float32x4.store(out,4,out1);var b2=SIMD.Float32x4.load(b,8);var out2=SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b2,0,0,0,0),a0),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b2,1,1,1,1),a1),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b2,2,2,2,2),a2),SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b2,3,3,3,3),a3))));SIMD.Float32x4.store(out,8,out2);var b3=SIMD.Float32x4.load(b,12);var out3=SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b3,0,0,0,0),a0),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b3,1,1,1,1),a1),SIMD.Float32x4.add(SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b3,2,2,2,2),a2),SIMD.Float32x4.mul(SIMD.Float32x4.swizzle(b3,3,3,3,3),a3))));SIMD.Float32x4.store(out,12,out3);return out};mat4.scalar.multiply=function(out,a,b){var a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11],a30=a[12],a31=a[13],a32=a[14],a33=a[15];var b0=b[0],b1=b[1],b2=b[2],b3=b[3];out[0]=b0*a00+b1*a10+b2*a20+b3*a30;out[1]=b0*a01+b1*a11+b2*a21+b3*a31;out[2]=b0*a02+b1*a12+b2*a22+b3*a32;out[3]=b0*a03+b1*a13+b2*a23+b3*a33;b0=b[4];b1=b[5];b2=b[6];b3=b[7];out[4]=b0*a00+b1*a10+b2*a20+b3*a30;out[5]=b0*a01+b1*a11+b2*a21+b3*a31;out[6]=b0*a02+b1*a12+b2*a22+b3*a32;out[7]=b0*a03+b1*a13+b2*a23+b3*a33;b0=b[8];b1=b[9];b2=b[10];b3=b[11];out[8]=b0*a00+b1*a10+b2*a20+b3*a30;out[9]=b0*a01+b1*a11+b2*a21+b3*a31;out[10]=b0*a02+b1*a12+b2*a22+b3*a32;out[11]=b0*a03+b1*a13+b2*a23+b3*a33;b0=b[12];b1=b[13];b2=b[14];b3=b[15];out[12]=b0*a00+b1*a10+b2*a20+b3*a30;out[13]=b0*a01+b1*a11+b2*a21+b3*a31;out[14]=b0*a02+b1*a12+b2*a22+b3*a32;out[15]=b0*a03+b1*a13+b2*a23+b3*a33;return out};mat4.multiply=glMatrix.USE_SIMD?mat4.SIMD.multiply:mat4.scalar.multiply;mat4.mul=mat4.multiply;mat4.scalar.translate=function(out,a,v){var x=v[0],y=v[1],z=v[2],a00,a01,a02,a03,a10,a11,a12,a13,a20,a21,a22,a23;if(a===out){out[12]=a[0]*x+a[4]*y+a[8]*z+a[12];out[13]=a[1]*x+a[5]*y+a[9]*z+a[13];out[14]=a[2]*x+a[6]*y+a[10]*z+a[14];out[15]=a[3]*x+a[7]*y+a[11]*z+a[15]}else{a00=a[0];a01=a[1];a02=a[2];a03=a[3];a10=a[4];a11=a[5];a12=a[6];a13=a[7];a20=a[8];a21=a[9];a22=a[10];a23=a[11];out[0]=a00;out[1]=a01;out[2]=a02;out[3]=a03;out[4]=a10;out[5]=a11;out[6]=a12;out[7]=a13;out[8]=a20;out[9]=a21;out[10]=a22;out[11]=a23;out[12]=a00*x+a10*y+a20*z+a[12];out[13]=a01*x+a11*y+a21*z+a[13];out[14]=a02*x+a12*y+a22*z+a[14];out[15]=a03*x+a13*y+a23*z+a[15]}return out};mat4.SIMD.translate=function(out,a,v){var a0=SIMD.Float32x4.load(a,0),a1=SIMD.Float32x4.load(a,4),a2=SIMD.Float32x4.load(a,8),a3=SIMD.Float32x4.load(a,12),vec=SIMD.Float32x4(v[0],v[1],v[2],0);if(a!==out){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[8]=a[8];out[9]=a[9];out[10]=a[10];out[11]=a[11]}a0=SIMD.Float32x4.mul(a0,SIMD.Float32x4.swizzle(vec,0,0,0,0));a1=SIMD.Float32x4.mul(a1,SIMD.Float32x4.swizzle(vec,1,1,1,1));a2=SIMD.Float32x4.mul(a2,SIMD.Float32x4.swizzle(vec,2,2,2,2));var t0=SIMD.Float32x4.add(a0,SIMD.Float32x4.add(a1,SIMD.Float32x4.add(a2,a3)));SIMD.Float32x4.store(out,12,t0);return out};mat4.translate=glMatrix.USE_SIMD?mat4.SIMD.translate:mat4.scalar.translate;mat4.scalar.scale=function(out,a,v){var x=v[0],y=v[1],z=v[2];out[0]=a[0]*x;out[1]=a[1]*x;out[2]=a[2]*x;out[3]=a[3]*x;out[4]=a[4]*y;out[5]=a[5]*y;out[6]=a[6]*y;out[7]=a[7]*y;out[8]=a[8]*z;out[9]=a[9]*z;out[10]=a[10]*z;out[11]=a[11]*z;out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15];return out};mat4.SIMD.scale=function(out,a,v){var a0,a1,a2;var vec=SIMD.Float32x4(v[0],v[1],v[2],0);a0=SIMD.Float32x4.load(a,0);SIMD.Float32x4.store(out,0,SIMD.Float32x4.mul(a0,SIMD.Float32x4.swizzle(vec,0,0,0,0)));a1=SIMD.Float32x4.load(a,4);SIMD.Float32x4.store(out,4,SIMD.Float32x4.mul(a1,SIMD.Float32x4.swizzle(vec,1,1,1,1)));a2=SIMD.Float32x4.load(a,8);SIMD.Float32x4.store(out,8,SIMD.Float32x4.mul(a2,SIMD.Float32x4.swizzle(vec,2,2,2,2)));out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15];return out};mat4.scale=glMatrix.USE_SIMD?mat4.SIMD.scale:mat4.scalar.scale;mat4.rotate=function(out,a,rad,axis){var x=axis[0],y=axis[1],z=axis[2],len=Math.sqrt(x*x+y*y+z*z),s,c,t,a00,a01,a02,a03,a10,a11,a12,a13,a20,a21,a22,a23,b00,b01,b02,b10,b11,b12,b20,b21,b22;if(Math.abs(len)<glMatrix.EPSILON){return null}len=1/len;x*=len;y*=len;z*=len;s=Math.sin(rad);c=Math.cos(rad);t=1-c;a00=a[0];a01=a[1];a02=a[2];a03=a[3];a10=a[4];a11=a[5];a12=a[6];a13=a[7];a20=a[8];a21=a[9];a22=a[10];a23=a[11];b00=x*x*t+c;b01=y*x*t+z*s;b02=z*x*t-y*s;b10=x*y*t-z*s;b11=y*y*t+c;b12=z*y*t+x*s;b20=x*z*t+y*s;b21=y*z*t-x*s;b22=z*z*t+c;out[0]=a00*b00+a10*b01+a20*b02;out[1]=a01*b00+a11*b01+a21*b02;out[2]=a02*b00+a12*b01+a22*b02;out[3]=a03*b00+a13*b01+a23*b02;out[4]=a00*b10+a10*b11+a20*b12;out[5]=a01*b10+a11*b11+a21*b12;out[6]=a02*b10+a12*b11+a22*b12;out[7]=a03*b10+a13*b11+a23*b12;out[8]=a00*b20+a10*b21+a20*b22;out[9]=a01*b20+a11*b21+a21*b22;out[10]=a02*b20+a12*b21+a22*b22;out[11]=a03*b20+a13*b21+a23*b22;if(a!==out){out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}return out};mat4.scalar.rotateX=function(out,a,rad){var s=Math.sin(rad),c=Math.cos(rad),a10=a[4],a11=a[5],a12=a[6],a13=a[7],a20=a[8],a21=a[9],a22=a[10],a23=a[11];if(a!==out){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}out[4]=a10*c+a20*s;out[5]=a11*c+a21*s;out[6]=a12*c+a22*s;out[7]=a13*c+a23*s;out[8]=a20*c-a10*s;out[9]=a21*c-a11*s;out[10]=a22*c-a12*s;out[11]=a23*c-a13*s;return out};mat4.SIMD.rotateX=function(out,a,rad){var s=SIMD.Float32x4.splat(Math.sin(rad)),c=SIMD.Float32x4.splat(Math.cos(rad));if(a!==out){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}var a_1=SIMD.Float32x4.load(a,4);var a_2=SIMD.Float32x4.load(a,8);SIMD.Float32x4.store(out,4,SIMD.Float32x4.add(SIMD.Float32x4.mul(a_1,c),SIMD.Float32x4.mul(a_2,s)));SIMD.Float32x4.store(out,8,SIMD.Float32x4.sub(SIMD.Float32x4.mul(a_2,c),SIMD.Float32x4.mul(a_1,s)));return out};mat4.rotateX=glMatrix.USE_SIMD?mat4.SIMD.rotateX:mat4.scalar.rotateX;mat4.scalar.rotateY=function(out,a,rad){var s=Math.sin(rad),c=Math.cos(rad),a00=a[0],a01=a[1],a02=a[2],a03=a[3],a20=a[8],a21=a[9],a22=a[10],a23=a[11];if(a!==out){out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}out[0]=a00*c-a20*s;out[1]=a01*c-a21*s;out[2]=a02*c-a22*s;out[3]=a03*c-a23*s;out[8]=a00*s+a20*c;out[9]=a01*s+a21*c;out[10]=a02*s+a22*c;out[11]=a03*s+a23*c;return out};mat4.SIMD.rotateY=function(out,a,rad){var s=SIMD.Float32x4.splat(Math.sin(rad)),c=SIMD.Float32x4.splat(Math.cos(rad));if(a!==out){out[4]=a[4];out[5]=a[5];out[6]=a[6];out[7]=a[7];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}var a_0=SIMD.Float32x4.load(a,0);var a_2=SIMD.Float32x4.load(a,8);SIMD.Float32x4.store(out,0,SIMD.Float32x4.sub(SIMD.Float32x4.mul(a_0,c),SIMD.Float32x4.mul(a_2,s)));SIMD.Float32x4.store(out,8,SIMD.Float32x4.add(SIMD.Float32x4.mul(a_0,s),SIMD.Float32x4.mul(a_2,c)));return out};mat4.rotateY=glMatrix.USE_SIMD?mat4.SIMD.rotateY:mat4.scalar.rotateY;mat4.scalar.rotateZ=function(out,a,rad){var s=Math.sin(rad),c=Math.cos(rad),a00=a[0],a01=a[1],a02=a[2],a03=a[3],a10=a[4],a11=a[5],a12=a[6],a13=a[7];if(a!==out){out[8]=a[8];out[9]=a[9];out[10]=a[10];out[11]=a[11];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}out[0]=a00*c+a10*s;out[1]=a01*c+a11*s;out[2]=a02*c+a12*s;out[3]=a03*c+a13*s;out[4]=a10*c-a00*s;out[5]=a11*c-a01*s;out[6]=a12*c-a02*s;out[7]=a13*c-a03*s;return out};mat4.SIMD.rotateZ=function(out,a,rad){var s=SIMD.Float32x4.splat(Math.sin(rad)),c=SIMD.Float32x4.splat(Math.cos(rad));if(a!==out){out[8]=a[8];out[9]=a[9];out[10]=a[10];out[11]=a[11];out[12]=a[12];out[13]=a[13];out[14]=a[14];out[15]=a[15]}var a_0=SIMD.Float32x4.load(a,0);var a_1=SIMD.Float32x4.load(a,4);SIMD.Float32x4.store(out,0,SIMD.Float32x4.add(SIMD.Float32x4.mul(a_0,c),SIMD.Float32x4.mul(a_1,s)));SIMD.Float32x4.store(out,4,SIMD.Float32x4.sub(SIMD.Float32x4.mul(a_1,c),SIMD.Float32x4.mul(a_0,s)));return out};mat4.rotateZ=glMatrix.USE_SIMD?mat4.SIMD.rotateZ:mat4.scalar.rotateZ;mat4.fromTranslation=function(out,v){out[0]=1;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=1;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=1;out[11]=0;out[12]=v[0];out[13]=v[1];out[14]=v[2];out[15]=1;return out};mat4.fromScaling=function(out,v){out[0]=v[0];out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=v[1];out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=v[2];out[11]=0;out[12]=0;out[13]=0;out[14]=0;out[15]=1;return out};mat4.fromRotation=function(out,rad,axis){var x=axis[0],y=axis[1],z=axis[2],len=Math.sqrt(x*x+y*y+z*z),s,c,t;if(Math.abs(len)<glMatrix.EPSILON){return null}len=1/len;x*=len;y*=len;z*=len;s=Math.sin(rad);c=Math.cos(rad);t=1-c;out[0]=x*x*t+c;out[1]=y*x*t+z*s;out[2]=z*x*t-y*s;out[3]=0;out[4]=x*y*t-z*s;out[5]=y*y*t+c;out[6]=z*y*t+x*s;out[7]=0;out[8]=x*z*t+y*s;out[9]=y*z*t-x*s;out[10]=z*z*t+c;out[11]=0;out[12]=0;out[13]=0;out[14]=0;out[15]=1;return out};mat4.fromXRotation=function(out,rad){var s=Math.sin(rad),c=Math.cos(rad);out[0]=1;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=c;out[6]=s;out[7]=0;out[8]=0;out[9]=-s;out[10]=c;out[11]=0;out[12]=0;out[13]=0;out[14]=0;out[15]=1;return out};mat4.fromYRotation=function(out,rad){var s=Math.sin(rad),c=Math.cos(rad);out[0]=c;out[1]=0;out[2]=-s;out[3]=0;out[4]=0;out[5]=1;out[6]=0;out[7]=0;out[8]=s;out[9]=0;out[10]=c;out[11]=0;out[12]=0;out[13]=0;out[14]=0;out[15]=1;return out};mat4.fromZRotation=function(out,rad){var s=Math.sin(rad),c=Math.cos(rad);out[0]=c;out[1]=s;out[2]=0;out[3]=0;out[4]=-s;out[5]=c;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=1;out[11]=0;out[12]=0;out[13]=0;out[14]=0;out[15]=1;return out};mat4.fromRotationTranslation=function(out,q,v){var x=q[0],y=q[1],z=q[2],w=q[3],x2=x+x,y2=y+y,z2=z+z,xx=x*x2,xy=x*y2,xz=x*z2,yy=y*y2,yz=y*z2,zz=z*z2,wx=w*x2,wy=w*y2,wz=w*z2;out[0]=1-(yy+zz);out[1]=xy+wz;out[2]=xz-wy;out[3]=0;out[4]=xy-wz;out[5]=1-(xx+zz);out[6]=yz+wx;out[7]=0;out[8]=xz+wy;out[9]=yz-wx;out[10]=1-(xx+yy);out[11]=0;out[12]=v[0];out[13]=v[1];out[14]=v[2];out[15]=1;return out};mat4.getTranslation=function(out,mat){out[0]=mat[12];out[1]=mat[13];out[2]=mat[14];return out};mat4.getRotation=function(out,mat){var trace=mat[0]+mat[5]+mat[10];var S=0;if(trace>0){S=Math.sqrt(trace+1)*2;out[3]=.25*S;out[0]=(mat[6]-mat[9])/S;out[1]=(mat[8]-mat[2])/S;out[2]=(mat[1]-mat[4])/S}else if(mat[0]>mat[5]&mat[0]>mat[10]){S=Math.sqrt(1+mat[0]-mat[5]-mat[10])*2;out[3]=(mat[6]-mat[9])/S;out[0]=.25*S;out[1]=(mat[1]+mat[4])/S;out[2]=(mat[8]+mat[2])/S}else if(mat[5]>mat[10]){S=Math.sqrt(1+mat[5]-mat[0]-mat[10])*2;out[3]=(mat[8]-mat[2])/S;out[0]=(mat[1]+mat[4])/S;out[1]=.25*S;out[2]=(mat[6]+mat[9])/S}else{S=Math.sqrt(1+mat[10]-mat[0]-mat[5])*2;out[3]=(mat[1]-mat[4])/S;out[0]=(mat[8]+mat[2])/S;out[1]=(mat[6]+mat[9])/S;out[2]=.25*S}return out};mat4.fromRotationTranslationScale=function(out,q,v,s){var x=q[0],y=q[1],z=q[2],w=q[3],x2=x+x,y2=y+y,z2=z+z,xx=x*x2,xy=x*y2,xz=x*z2,yy=y*y2,yz=y*z2,zz=z*z2,wx=w*x2,wy=w*y2,wz=w*z2,sx=s[0],sy=s[1],sz=s[2];out[0]=(1-(yy+zz))*sx;out[1]=(xy+wz)*sx;out[2]=(xz-wy)*sx;out[3]=0;out[4]=(xy-wz)*sy;out[5]=(1-(xx+zz))*sy;out[6]=(yz+wx)*sy;out[7]=0;out[8]=(xz+wy)*sz;out[9]=(yz-wx)*sz;out[10]=(1-(xx+yy))*sz;out[11]=0;out[12]=v[0];out[13]=v[1];out[14]=v[2];out[15]=1;return out};mat4.fromRotationTranslationScaleOrigin=function(out,q,v,s,o){var x=q[0],y=q[1],z=q[2],w=q[3],x2=x+x,y2=y+y,z2=z+z,xx=x*x2,xy=x*y2,xz=x*z2,yy=y*y2,yz=y*z2,zz=z*z2,wx=w*x2,wy=w*y2,wz=w*z2,sx=s[0],sy=s[1],sz=s[2],ox=o[0],oy=o[1],oz=o[2];out[0]=(1-(yy+zz))*sx;out[1]=(xy+wz)*sx;out[2]=(xz-wy)*sx;out[3]=0;out[4]=(xy-wz)*sy;out[5]=(1-(xx+zz))*sy;out[6]=(yz+wx)*sy;out[7]=0;out[8]=(xz+wy)*sz;out[9]=(yz-wx)*sz;out[10]=(1-(xx+yy))*sz;out[11]=0;out[12]=v[0]+ox-(out[0]*ox+out[4]*oy+out[8]*oz);out[13]=v[1]+oy-(out[1]*ox+out[5]*oy+out[9]*oz);out[14]=v[2]+oz-(out[2]*ox+out[6]*oy+out[10]*oz);out[15]=1;return out};mat4.fromQuat=function(out,q){var x=q[0],y=q[1],z=q[2],w=q[3],x2=x+x,y2=y+y,z2=z+z,xx=x*x2,yx=y*x2,yy=y*y2,zx=z*x2,zy=z*y2,zz=z*z2,wx=w*x2,wy=w*y2,wz=w*z2;out[0]=1-yy-zz;out[1]=yx+wz;out[2]=zx-wy;out[3]=0;out[4]=yx-wz;out[5]=1-xx-zz;out[6]=zy+wx;out[7]=0;out[8]=zx+wy;out[9]=zy-wx;out[10]=1-xx-yy;out[11]=0;out[12]=0;out[13]=0;out[14]=0;out[15]=1;return out};mat4.frustum=function(out,left,right,bottom,top,near,far){var rl=1/(right-left),tb=1/(top-bottom),nf=1/(near-far);out[0]=near*2*rl;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=near*2*tb;out[6]=0;out[7]=0;out[8]=(right+left)*rl;out[9]=(top+bottom)*tb;out[10]=(far+near)*nf;out[11]=-1;out[12]=0;out[13]=0;out[14]=far*near*2*nf;out[15]=0;return out};mat4.perspective=function(out,fovy,aspect,near,far){var f=1/Math.tan(fovy/2),nf=1/(near-far);out[0]=f/aspect;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=f;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=(far+near)*nf;out[11]=-1;out[12]=0;out[13]=0;out[14]=2*far*near*nf;out[15]=0;return out};mat4.perspectiveFromFieldOfView=function(out,fov,near,far){var upTan=Math.tan(fov.upDegrees*Math.PI/180),downTan=Math.tan(fov.downDegrees*Math.PI/180),leftTan=Math.tan(fov.leftDegrees*Math.PI/180),rightTan=Math.tan(fov.rightDegrees*Math.PI/180),xScale=2/(leftTan+rightTan),yScale=2/(upTan+downTan);out[0]=xScale;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=yScale;out[6]=0;out[7]=0;out[8]=-((leftTan-rightTan)*xScale*.5);out[9]=(upTan-downTan)*yScale*.5;out[10]=far/(near-far);out[11]=-1;out[12]=0;out[13]=0;out[14]=far*near/(near-far);out[15]=0;return out};mat4.ortho=function(out,left,right,bottom,top,near,far){var lr=1/(left-right),bt=1/(bottom-top),nf=1/(near-far);out[0]=-2*lr;out[1]=0;out[2]=0;out[3]=0;out[4]=0;out[5]=-2*bt;out[6]=0;out[7]=0;out[8]=0;out[9]=0;out[10]=2*nf;out[11]=0;out[12]=(left+right)*lr;out[13]=(top+bottom)*bt;out[14]=(far+near)*nf;out[15]=1;return out};mat4.lookAt=function(out,eye,center,up){var x0,x1,x2,y0,y1,y2,z0,z1,z2,len,eyex=eye[0],eyey=eye[1],eyez=eye[2],upx=up[0],upy=up[1],upz=up[2],centerx=center[0],centery=center[1],centerz=center[2];if(Math.abs(eyex-centerx)<glMatrix.EPSILON&&Math.abs(eyey-centery)<glMatrix.EPSILON&&Math.abs(eyez-centerz)<glMatrix.EPSILON){return mat4.identity(out)}z0=eyex-centerx;z1=eyey-centery;z2=eyez-centerz;len=1/Math.sqrt(z0*z0+z1*z1+z2*z2);z0*=len;z1*=len;z2*=len;x0=upy*z2-upz*z1;x1=upz*z0-upx*z2;x2=upx*z1-upy*z0;len=Math.sqrt(x0*x0+x1*x1+x2*x2);if(!len){x0=0;x1=0;x2=0}else{len=1/len;x0*=len;x1*=len;x2*=len}y0=z1*x2-z2*x1;y1=z2*x0-z0*x2;y2=z0*x1-z1*x0;len=Math.sqrt(y0*y0+y1*y1+y2*y2);if(!len){y0=0;y1=0;y2=0}else{len=1/len;y0*=len;y1*=len;y2*=len}out[0]=x0;out[1]=y0;out[2]=z0;out[3]=0;out[4]=x1;out[5]=y1;out[6]=z1;out[7]=0;out[8]=x2;out[9]=y2;out[10]=z2;out[11]=0;out[12]=-(x0*eyex+x1*eyey+x2*eyez);out[13]=-(y0*eyex+y1*eyey+y2*eyez);out[14]=-(z0*eyex+z1*eyey+z2*eyez);out[15]=1;return out};mat4.str=function(a){return"mat4("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+", "+a[4]+", "+a[5]+", "+a[6]+", "+a[7]+", "+a[8]+", "+a[9]+", "+a[10]+", "+a[11]+", "+a[12]+", "+a[13]+", "+a[14]+", "+a[15]+")"};mat4.frob=function(a){return Math.sqrt(Math.pow(a[0],2)+Math.pow(a[1],2)+Math.pow(a[2],2)+Math.pow(a[3],2)+Math.pow(a[4],2)+Math.pow(a[5],2)+Math.pow(a[6],2)+Math.pow(a[7],2)+Math.pow(a[8],2)+Math.pow(a[9],2)+Math.pow(a[10],2)+Math.pow(a[11],2)+Math.pow(a[12],2)+Math.pow(a[13],2)+Math.pow(a[14],2)+Math.pow(a[15],2))};mat4.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];out[2]=a[2]+b[2];out[3]=a[3]+b[3];out[4]=a[4]+b[4];out[5]=a[5]+b[5];out[6]=a[6]+b[6];out[7]=a[7]+b[7];out[8]=a[8]+b[8];out[9]=a[9]+b[9];out[10]=a[10]+b[10];out[11]=a[11]+b[11];out[12]=a[12]+b[12];out[13]=a[13]+b[13];out[14]=a[14]+b[14];out[15]=a[15]+b[15];return out};mat4.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];out[2]=a[2]-b[2];out[3]=a[3]-b[3];out[4]=a[4]-b[4];out[5]=a[5]-b[5];out[6]=a[6]-b[6];out[7]=a[7]-b[7];out[8]=a[8]-b[8];out[9]=a[9]-b[9];out[10]=a[10]-b[10];out[11]=a[11]-b[11];out[12]=a[12]-b[12];out[13]=a[13]-b[13];out[14]=a[14]-b[14];out[15]=a[15]-b[15];return out};mat4.sub=mat4.subtract;mat4.multiplyScalar=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;out[2]=a[2]*b;out[3]=a[3]*b;out[4]=a[4]*b;out[5]=a[5]*b;out[6]=a[6]*b;out[7]=a[7]*b;out[8]=a[8]*b;out[9]=a[9]*b;out[10]=a[10]*b;out[11]=a[11]*b;out[12]=a[12]*b;out[13]=a[13]*b;out[14]=a[14]*b;out[15]=a[15]*b;return out};mat4.multiplyScalarAndAdd=function(out,a,b,scale){out[0]=a[0]+b[0]*scale;out[1]=a[1]+b[1]*scale;out[2]=a[2]+b[2]*scale;out[3]=a[3]+b[3]*scale;out[4]=a[4]+b[4]*scale;out[5]=a[5]+b[5]*scale;out[6]=a[6]+b[6]*scale;out[7]=a[7]+b[7]*scale;out[8]=a[8]+b[8]*scale;out[9]=a[9]+b[9]*scale;out[10]=a[10]+b[10]*scale;out[11]=a[11]+b[11]*scale;out[12]=a[12]+b[12]*scale;out[13]=a[13]+b[13]*scale;out[14]=a[14]+b[14]*scale;out[15]=a[15]+b[15]*scale;return out};mat4.exactEquals=function(a,b){return a[0]===b[0]&&a[1]===b[1]&&a[2]===b[2]&&a[3]===b[3]&&a[4]===b[4]&&a[5]===b[5]&&a[6]===b[6]&&a[7]===b[7]&&a[8]===b[8]&&a[9]===b[9]&&a[10]===b[10]&&a[11]===b[11]&&a[12]===b[12]&&a[13]===b[13]&&a[14]===b[14]&&a[15]===b[15]};mat4.equals=function(a,b){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],a4=a[4],a5=a[5],a6=a[6],a7=a[7],a8=a[8],a9=a[9],a10=a[10],a11=a[11],a12=a[12],a13=a[13],a14=a[14],a15=a[15];var b0=b[0],b1=b[1],b2=b[2],b3=b[3],b4=b[4],b5=b[5],b6=b[6],b7=b[7],b8=b[8],b9=b[9],b10=b[10],b11=b[11],b12=b[12],b13=b[13],b14=b[14],b15=b[15];return Math.abs(a0-b0)<=glMatrix.EPSILON*Math.max(1,Math.abs(a0),Math.abs(b0))&&Math.abs(a1-b1)<=glMatrix.EPSILON*Math.max(1,Math.abs(a1),Math.abs(b1))&&Math.abs(a2-b2)<=glMatrix.EPSILON*Math.max(1,Math.abs(a2),Math.abs(b2))&&Math.abs(a3-b3)<=glMatrix.EPSILON*Math.max(1,Math.abs(a3),Math.abs(b3))&&Math.abs(a4-b4)<=glMatrix.EPSILON*Math.max(1,Math.abs(a4),Math.abs(b4))&&Math.abs(a5-b5)<=glMatrix.EPSILON*Math.max(1,Math.abs(a5),Math.abs(b5))&&Math.abs(a6-b6)<=glMatrix.EPSILON*Math.max(1,Math.abs(a6),Math.abs(b6))&&Math.abs(a7-b7)<=glMatrix.EPSILON*Math.max(1,Math.abs(a7),Math.abs(b7))&&Math.abs(a8-b8)<=glMatrix.EPSILON*Math.max(1,Math.abs(a8),Math.abs(b8))&&Math.abs(a9-b9)<=glMatrix.EPSILON*Math.max(1,Math.abs(a9),Math.abs(b9))&&Math.abs(a10-b10)<=glMatrix.EPSILON*Math.max(1,Math.abs(a10),Math.abs(b10))&&Math.abs(a11-b11)<=glMatrix.EPSILON*Math.max(1,Math.abs(a11),Math.abs(b11))&&Math.abs(a12-b12)<=glMatrix.EPSILON*Math.max(1,Math.abs(a12),Math.abs(b12))&&Math.abs(a13-b13)<=glMatrix.EPSILON*Math.max(1,Math.abs(a13),Math.abs(b13))&&Math.abs(a14-b14)<=glMatrix.EPSILON*Math.max(1,Math.abs(a14),Math.abs(b14))&&Math.abs(a15-b15)<=glMatrix.EPSILON*Math.max(1,Math.abs(a15),Math.abs(b15))};module.exports=mat4},{"./common.js":155}],160:[function(require,module,exports){var glMatrix=require("./common.js");var mat3=require("./mat3.js");var vec3=require("./vec3.js");var vec4=require("./vec4.js");var quat={};quat.create=function(){var out=new glMatrix.ARRAY_TYPE(4);out[0]=0;out[1]=0;out[2]=0;out[3]=1;return out};quat.rotationTo=function(){var tmpvec3=vec3.create();var xUnitVec3=vec3.fromValues(1,0,0);var yUnitVec3=vec3.fromValues(0,1,0);return function(out,a,b){var dot=vec3.dot(a,b);if(dot<-.999999){vec3.cross(tmpvec3,xUnitVec3,a);if(vec3.length(tmpvec3)<1e-6)vec3.cross(tmpvec3,yUnitVec3,a);vec3.normalize(tmpvec3,tmpvec3);quat.setAxisAngle(out,tmpvec3,Math.PI);return out}else if(dot>.999999){out[0]=0;out[1]=0;out[2]=0;out[3]=1;return out}else{vec3.cross(tmpvec3,a,b);out[0]=tmpvec3[0];out[1]=tmpvec3[1];out[2]=tmpvec3[2];out[3]=1+dot;return quat.normalize(out,out)}}}();quat.setAxes=function(){var matr=mat3.create();return function(out,view,right,up){matr[0]=right[0];matr[3]=right[1];matr[6]=right[2];matr[1]=up[0];matr[4]=up[1];matr[7]=up[2];matr[2]=-view[0];matr[5]=-view[1];matr[8]=-view[2];return quat.normalize(out,quat.fromMat3(out,matr))}}();quat.clone=vec4.clone;quat.fromValues=vec4.fromValues;quat.copy=vec4.copy;quat.set=vec4.set;quat.identity=function(out){out[0]=0;out[1]=0;out[2]=0;out[3]=1;return out};quat.setAxisAngle=function(out,axis,rad){rad=rad*.5;var s=Math.sin(rad);out[0]=s*axis[0];out[1]=s*axis[1];out[2]=s*axis[2];out[3]=Math.cos(rad);return out};quat.getAxisAngle=function(out_axis,q){var rad=Math.acos(q[3])*2;var s=Math.sin(rad/2);if(s!=0){out_axis[0]=q[0]/s;out_axis[1]=q[1]/s;out_axis[2]=q[2]/s}else{out_axis[0]=1;out_axis[1]=0;out_axis[2]=0}return rad};quat.add=vec4.add;quat.multiply=function(out,a,b){var ax=a[0],ay=a[1],az=a[2],aw=a[3],bx=b[0],by=b[1],bz=b[2],bw=b[3];out[0]=ax*bw+aw*bx+ay*bz-az*by;out[1]=ay*bw+aw*by+az*bx-ax*bz;out[2]=az*bw+aw*bz+ax*by-ay*bx;out[3]=aw*bw-ax*bx-ay*by-az*bz;return out};quat.mul=quat.multiply;quat.scale=vec4.scale;quat.rotateX=function(out,a,rad){rad*=.5;var ax=a[0],ay=a[1],az=a[2],aw=a[3],bx=Math.sin(rad),bw=Math.cos(rad);out[0]=ax*bw+aw*bx;out[1]=ay*bw+az*bx;out[2]=az*bw-ay*bx;out[3]=aw*bw-ax*bx;return out};quat.rotateY=function(out,a,rad){rad*=.5;var ax=a[0],ay=a[1],az=a[2],aw=a[3],by=Math.sin(rad),bw=Math.cos(rad);out[0]=ax*bw-az*by;out[1]=ay*bw+aw*by;out[2]=az*bw+ax*by;out[3]=aw*bw-ay*by;return out};quat.rotateZ=function(out,a,rad){rad*=.5;var ax=a[0],ay=a[1],az=a[2],aw=a[3],bz=Math.sin(rad),bw=Math.cos(rad);out[0]=ax*bw+ay*bz;out[1]=ay*bw-ax*bz;out[2]=az*bw+aw*bz;out[3]=aw*bw-az*bz;return out};quat.calculateW=function(out,a){var x=a[0],y=a[1],z=a[2];out[0]=x;out[1]=y;out[2]=z;out[3]=Math.sqrt(Math.abs(1-x*x-y*y-z*z));return out};quat.dot=vec4.dot;quat.lerp=vec4.lerp;quat.slerp=function(out,a,b,t){var ax=a[0],ay=a[1],az=a[2],aw=a[3],bx=b[0],by=b[1],bz=b[2],bw=b[3];var omega,cosom,sinom,scale0,scale1;cosom=ax*bx+ay*by+az*bz+aw*bw;if(cosom<0){cosom=-cosom;bx=-bx;by=-by;bz=-bz;bw=-bw}if(1-cosom>1e-6){omega=Math.acos(cosom);sinom=Math.sin(omega);scale0=Math.sin((1-t)*omega)/sinom;scale1=Math.sin(t*omega)/sinom}else{scale0=1-t;scale1=t}out[0]=scale0*ax+scale1*bx;out[1]=scale0*ay+scale1*by;out[2]=scale0*az+scale1*bz;out[3]=scale0*aw+scale1*bw;return out};quat.sqlerp=function(){var temp1=quat.create();var temp2=quat.create();return function(out,a,b,c,d,t){quat.slerp(temp1,a,d,t);quat.slerp(temp2,b,c,t);quat.slerp(out,temp1,temp2,2*t*(1-t));return out}}();quat.invert=function(out,a){var a0=a[0],a1=a[1],a2=a[2],a3=a[3],dot=a0*a0+a1*a1+a2*a2+a3*a3,invDot=dot?1/dot:0;out[0]=-a0*invDot;out[1]=-a1*invDot;out[2]=-a2*invDot;out[3]=a3*invDot;return out};quat.conjugate=function(out,a){out[0]=-a[0];out[1]=-a[1];out[2]=-a[2];out[3]=a[3];return out};quat.length=vec4.length;quat.len=quat.length;quat.squaredLength=vec4.squaredLength;quat.sqrLen=quat.squaredLength;quat.normalize=vec4.normalize;quat.fromMat3=function(out,m){var fTrace=m[0]+m[4]+m[8];var fRoot;if(fTrace>0){fRoot=Math.sqrt(fTrace+1);out[3]=.5*fRoot;fRoot=.5/fRoot;out[0]=(m[5]-m[7])*fRoot;out[1]=(m[6]-m[2])*fRoot;out[2]=(m[1]-m[3])*fRoot}else{var i=0;if(m[4]>m[0])i=1;if(m[8]>m[i*3+i])i=2;var j=(i+1)%3;var k=(i+2)%3;fRoot=Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k]+1);out[i]=.5*fRoot;fRoot=.5/fRoot;out[3]=(m[j*3+k]-m[k*3+j])*fRoot;out[j]=(m[j*3+i]+m[i*3+j])*fRoot;out[k]=(m[k*3+i]+m[i*3+k])*fRoot}return out};quat.str=function(a){return"quat("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"};quat.exactEquals=vec4.exactEquals;quat.equals=vec4.equals;module.exports=quat},{"./common.js":155,"./mat3.js":158,"./vec3.js":162,"./vec4.js":163}],161:[function(require,module,exports){var glMatrix=require("./common.js");var vec2={};vec2.create=function(){var out=new glMatrix.ARRAY_TYPE(2);out[0]=0;out[1]=0;return out};vec2.clone=function(a){var out=new glMatrix.ARRAY_TYPE(2);out[0]=a[0];out[1]=a[1];return out};vec2.fromValues=function(x,y){var out=new glMatrix.ARRAY_TYPE(2);out[0]=x;out[1]=y;return out};vec2.copy=function(out,a){out[0]=a[0];out[1]=a[1];return out};vec2.set=function(out,x,y){out[0]=x;out[1]=y;return out};vec2.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];return out};vec2.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];return out};vec2.sub=vec2.subtract;vec2.multiply=function(out,a,b){out[0]=a[0]*b[0];out[1]=a[1]*b[1];return out};vec2.mul=vec2.multiply;vec2.divide=function(out,a,b){out[0]=a[0]/b[0];out[1]=a[1]/b[1];return out};vec2.div=vec2.divide;vec2.ceil=function(out,a){out[0]=Math.ceil(a[0]);out[1]=Math.ceil(a[1]);return out};vec2.floor=function(out,a){out[0]=Math.floor(a[0]);out[1]=Math.floor(a[1]);return out};vec2.min=function(out,a,b){out[0]=Math.min(a[0],b[0]);out[1]=Math.min(a[1],b[1]);return out};vec2.max=function(out,a,b){out[0]=Math.max(a[0],b[0]);out[1]=Math.max(a[1],b[1]);return out};vec2.round=function(out,a){out[0]=Math.round(a[0]);out[1]=Math.round(a[1]);return out};vec2.scale=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;return out};vec2.scaleAndAdd=function(out,a,b,scale){out[0]=a[0]+b[0]*scale;out[1]=a[1]+b[1]*scale;return out};vec2.distance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1];return Math.sqrt(x*x+y*y)};vec2.dist=vec2.distance;vec2.squaredDistance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1];return x*x+y*y};vec2.sqrDist=vec2.squaredDistance;vec2.length=function(a){var x=a[0],y=a[1];return Math.sqrt(x*x+y*y)};vec2.len=vec2.length;vec2.squaredLength=function(a){var x=a[0],y=a[1];return x*x+y*y};vec2.sqrLen=vec2.squaredLength;vec2.negate=function(out,a){out[0]=-a[0];out[1]=-a[1];return out};vec2.inverse=function(out,a){out[0]=1/a[0];out[1]=1/a[1];return out};vec2.normalize=function(out,a){var x=a[0],y=a[1];
var len=x*x+y*y;if(len>0){len=1/Math.sqrt(len);out[0]=a[0]*len;out[1]=a[1]*len}return out};vec2.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]};vec2.cross=function(out,a,b){var z=a[0]*b[1]-a[1]*b[0];out[0]=out[1]=0;out[2]=z;return out};vec2.lerp=function(out,a,b,t){var ax=a[0],ay=a[1];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);return out};vec2.random=function(out,scale){scale=scale||1;var r=glMatrix.RANDOM()*2*Math.PI;out[0]=Math.cos(r)*scale;out[1]=Math.sin(r)*scale;return out};vec2.transformMat2=function(out,a,m){var x=a[0],y=a[1];out[0]=m[0]*x+m[2]*y;out[1]=m[1]*x+m[3]*y;return out};vec2.transformMat2d=function(out,a,m){var x=a[0],y=a[1];out[0]=m[0]*x+m[2]*y+m[4];out[1]=m[1]*x+m[3]*y+m[5];return out};vec2.transformMat3=function(out,a,m){var x=a[0],y=a[1];out[0]=m[0]*x+m[3]*y+m[6];out[1]=m[1]*x+m[4]*y+m[7];return out};vec2.transformMat4=function(out,a,m){var x=a[0],y=a[1];out[0]=m[0]*x+m[4]*y+m[12];out[1]=m[1]*x+m[5]*y+m[13];return out};vec2.forEach=function(){var vec=vec2.create();return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=2}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i<l;i+=stride){vec[0]=a[i];vec[1]=a[i+1];fn(vec,vec,arg);a[i]=vec[0];a[i+1]=vec[1]}return a}}();vec2.str=function(a){return"vec2("+a[0]+", "+a[1]+")"};vec2.exactEquals=function(a,b){return a[0]===b[0]&&a[1]===b[1]};vec2.equals=function(a,b){var a0=a[0],a1=a[1];var b0=b[0],b1=b[1];return Math.abs(a0-b0)<=glMatrix.EPSILON*Math.max(1,Math.abs(a0),Math.abs(b0))&&Math.abs(a1-b1)<=glMatrix.EPSILON*Math.max(1,Math.abs(a1),Math.abs(b1))};module.exports=vec2},{"./common.js":155}],162:[function(require,module,exports){var glMatrix=require("./common.js");var vec3={};vec3.create=function(){var out=new glMatrix.ARRAY_TYPE(3);out[0]=0;out[1]=0;out[2]=0;return out};vec3.clone=function(a){var out=new glMatrix.ARRAY_TYPE(3);out[0]=a[0];out[1]=a[1];out[2]=a[2];return out};vec3.fromValues=function(x,y,z){var out=new glMatrix.ARRAY_TYPE(3);out[0]=x;out[1]=y;out[2]=z;return out};vec3.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];return out};vec3.set=function(out,x,y,z){out[0]=x;out[1]=y;out[2]=z;return out};vec3.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];out[2]=a[2]+b[2];return out};vec3.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];out[2]=a[2]-b[2];return out};vec3.sub=vec3.subtract;vec3.multiply=function(out,a,b){out[0]=a[0]*b[0];out[1]=a[1]*b[1];out[2]=a[2]*b[2];return out};vec3.mul=vec3.multiply;vec3.divide=function(out,a,b){out[0]=a[0]/b[0];out[1]=a[1]/b[1];out[2]=a[2]/b[2];return out};vec3.div=vec3.divide;vec3.ceil=function(out,a){out[0]=Math.ceil(a[0]);out[1]=Math.ceil(a[1]);out[2]=Math.ceil(a[2]);return out};vec3.floor=function(out,a){out[0]=Math.floor(a[0]);out[1]=Math.floor(a[1]);out[2]=Math.floor(a[2]);return out};vec3.min=function(out,a,b){out[0]=Math.min(a[0],b[0]);out[1]=Math.min(a[1],b[1]);out[2]=Math.min(a[2],b[2]);return out};vec3.max=function(out,a,b){out[0]=Math.max(a[0],b[0]);out[1]=Math.max(a[1],b[1]);out[2]=Math.max(a[2],b[2]);return out};vec3.round=function(out,a){out[0]=Math.round(a[0]);out[1]=Math.round(a[1]);out[2]=Math.round(a[2]);return out};vec3.scale=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;out[2]=a[2]*b;return out};vec3.scaleAndAdd=function(out,a,b,scale){out[0]=a[0]+b[0]*scale;out[1]=a[1]+b[1]*scale;out[2]=a[2]+b[2]*scale;return out};vec3.distance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2];return Math.sqrt(x*x+y*y+z*z)};vec3.dist=vec3.distance;vec3.squaredDistance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2];return x*x+y*y+z*z};vec3.sqrDist=vec3.squaredDistance;vec3.length=function(a){var x=a[0],y=a[1],z=a[2];return Math.sqrt(x*x+y*y+z*z)};vec3.len=vec3.length;vec3.squaredLength=function(a){var x=a[0],y=a[1],z=a[2];return x*x+y*y+z*z};vec3.sqrLen=vec3.squaredLength;vec3.negate=function(out,a){out[0]=-a[0];out[1]=-a[1];out[2]=-a[2];return out};vec3.inverse=function(out,a){out[0]=1/a[0];out[1]=1/a[1];out[2]=1/a[2];return out};vec3.normalize=function(out,a){var x=a[0],y=a[1],z=a[2];var len=x*x+y*y+z*z;if(len>0){len=1/Math.sqrt(len);out[0]=a[0]*len;out[1]=a[1]*len;out[2]=a[2]*len}return out};vec3.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]};vec3.cross=function(out,a,b){var ax=a[0],ay=a[1],az=a[2],bx=b[0],by=b[1],bz=b[2];out[0]=ay*bz-az*by;out[1]=az*bx-ax*bz;out[2]=ax*by-ay*bx;return out};vec3.lerp=function(out,a,b,t){var ax=a[0],ay=a[1],az=a[2];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);out[2]=az+t*(b[2]-az);return out};vec3.hermite=function(out,a,b,c,d,t){var factorTimes2=t*t,factor1=factorTimes2*(2*t-3)+1,factor2=factorTimes2*(t-2)+t,factor3=factorTimes2*(t-1),factor4=factorTimes2*(3-2*t);out[0]=a[0]*factor1+b[0]*factor2+c[0]*factor3+d[0]*factor4;out[1]=a[1]*factor1+b[1]*factor2+c[1]*factor3+d[1]*factor4;out[2]=a[2]*factor1+b[2]*factor2+c[2]*factor3+d[2]*factor4;return out};vec3.bezier=function(out,a,b,c,d,t){var inverseFactor=1-t,inverseFactorTimesTwo=inverseFactor*inverseFactor,factorTimes2=t*t,factor1=inverseFactorTimesTwo*inverseFactor,factor2=3*t*inverseFactorTimesTwo,factor3=3*factorTimes2*inverseFactor,factor4=factorTimes2*t;out[0]=a[0]*factor1+b[0]*factor2+c[0]*factor3+d[0]*factor4;out[1]=a[1]*factor1+b[1]*factor2+c[1]*factor3+d[1]*factor4;out[2]=a[2]*factor1+b[2]*factor2+c[2]*factor3+d[2]*factor4;return out};vec3.random=function(out,scale){scale=scale||1;var r=glMatrix.RANDOM()*2*Math.PI;var z=glMatrix.RANDOM()*2-1;var zScale=Math.sqrt(1-z*z)*scale;out[0]=Math.cos(r)*zScale;out[1]=Math.sin(r)*zScale;out[2]=z*scale;return out};vec3.transformMat4=function(out,a,m){var x=a[0],y=a[1],z=a[2],w=m[3]*x+m[7]*y+m[11]*z+m[15];w=w||1;out[0]=(m[0]*x+m[4]*y+m[8]*z+m[12])/w;out[1]=(m[1]*x+m[5]*y+m[9]*z+m[13])/w;out[2]=(m[2]*x+m[6]*y+m[10]*z+m[14])/w;return out};vec3.transformMat3=function(out,a,m){var x=a[0],y=a[1],z=a[2];out[0]=x*m[0]+y*m[3]+z*m[6];out[1]=x*m[1]+y*m[4]+z*m[7];out[2]=x*m[2]+y*m[5]+z*m[8];return out};vec3.transformQuat=function(out,a,q){var x=a[0],y=a[1],z=a[2],qx=q[0],qy=q[1],qz=q[2],qw=q[3],ix=qw*x+qy*z-qz*y,iy=qw*y+qz*x-qx*z,iz=qw*z+qx*y-qy*x,iw=-qx*x-qy*y-qz*z;out[0]=ix*qw+iw*-qx+iy*-qz-iz*-qy;out[1]=iy*qw+iw*-qy+iz*-qx-ix*-qz;out[2]=iz*qw+iw*-qz+ix*-qy-iy*-qx;return out};vec3.rotateX=function(out,a,b,c){var p=[],r=[];p[0]=a[0]-b[0];p[1]=a[1]-b[1];p[2]=a[2]-b[2];r[0]=p[0];r[1]=p[1]*Math.cos(c)-p[2]*Math.sin(c);r[2]=p[1]*Math.sin(c)+p[2]*Math.cos(c);out[0]=r[0]+b[0];out[1]=r[1]+b[1];out[2]=r[2]+b[2];return out};vec3.rotateY=function(out,a,b,c){var p=[],r=[];p[0]=a[0]-b[0];p[1]=a[1]-b[1];p[2]=a[2]-b[2];r[0]=p[2]*Math.sin(c)+p[0]*Math.cos(c);r[1]=p[1];r[2]=p[2]*Math.cos(c)-p[0]*Math.sin(c);out[0]=r[0]+b[0];out[1]=r[1]+b[1];out[2]=r[2]+b[2];return out};vec3.rotateZ=function(out,a,b,c){var p=[],r=[];p[0]=a[0]-b[0];p[1]=a[1]-b[1];p[2]=a[2]-b[2];r[0]=p[0]*Math.cos(c)-p[1]*Math.sin(c);r[1]=p[0]*Math.sin(c)+p[1]*Math.cos(c);r[2]=p[2];out[0]=r[0]+b[0];out[1]=r[1]+b[1];out[2]=r[2]+b[2];return out};vec3.forEach=function(){var vec=vec3.create();return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=3}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i<l;i+=stride){vec[0]=a[i];vec[1]=a[i+1];vec[2]=a[i+2];fn(vec,vec,arg);a[i]=vec[0];a[i+1]=vec[1];a[i+2]=vec[2]}return a}}();vec3.angle=function(a,b){var tempA=vec3.fromValues(a[0],a[1],a[2]);var tempB=vec3.fromValues(b[0],b[1],b[2]);vec3.normalize(tempA,tempA);vec3.normalize(tempB,tempB);var cosine=vec3.dot(tempA,tempB);if(cosine>1){return 0}else{return Math.acos(cosine)}};vec3.str=function(a){return"vec3("+a[0]+", "+a[1]+", "+a[2]+")"};vec3.exactEquals=function(a,b){return a[0]===b[0]&&a[1]===b[1]&&a[2]===b[2]};vec3.equals=function(a,b){var a0=a[0],a1=a[1],a2=a[2];var b0=b[0],b1=b[1],b2=b[2];return Math.abs(a0-b0)<=glMatrix.EPSILON*Math.max(1,Math.abs(a0),Math.abs(b0))&&Math.abs(a1-b1)<=glMatrix.EPSILON*Math.max(1,Math.abs(a1),Math.abs(b1))&&Math.abs(a2-b2)<=glMatrix.EPSILON*Math.max(1,Math.abs(a2),Math.abs(b2))};module.exports=vec3},{"./common.js":155}],163:[function(require,module,exports){var glMatrix=require("./common.js");var vec4={};vec4.create=function(){var out=new glMatrix.ARRAY_TYPE(4);out[0]=0;out[1]=0;out[2]=0;out[3]=0;return out};vec4.clone=function(a){var out=new glMatrix.ARRAY_TYPE(4);out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};vec4.fromValues=function(x,y,z,w){var out=new glMatrix.ARRAY_TYPE(4);out[0]=x;out[1]=y;out[2]=z;out[3]=w;return out};vec4.copy=function(out,a){out[0]=a[0];out[1]=a[1];out[2]=a[2];out[3]=a[3];return out};vec4.set=function(out,x,y,z,w){out[0]=x;out[1]=y;out[2]=z;out[3]=w;return out};vec4.add=function(out,a,b){out[0]=a[0]+b[0];out[1]=a[1]+b[1];out[2]=a[2]+b[2];out[3]=a[3]+b[3];return out};vec4.subtract=function(out,a,b){out[0]=a[0]-b[0];out[1]=a[1]-b[1];out[2]=a[2]-b[2];out[3]=a[3]-b[3];return out};vec4.sub=vec4.subtract;vec4.multiply=function(out,a,b){out[0]=a[0]*b[0];out[1]=a[1]*b[1];out[2]=a[2]*b[2];out[3]=a[3]*b[3];return out};vec4.mul=vec4.multiply;vec4.divide=function(out,a,b){out[0]=a[0]/b[0];out[1]=a[1]/b[1];out[2]=a[2]/b[2];out[3]=a[3]/b[3];return out};vec4.div=vec4.divide;vec4.ceil=function(out,a){out[0]=Math.ceil(a[0]);out[1]=Math.ceil(a[1]);out[2]=Math.ceil(a[2]);out[3]=Math.ceil(a[3]);return out};vec4.floor=function(out,a){out[0]=Math.floor(a[0]);out[1]=Math.floor(a[1]);out[2]=Math.floor(a[2]);out[3]=Math.floor(a[3]);return out};vec4.min=function(out,a,b){out[0]=Math.min(a[0],b[0]);out[1]=Math.min(a[1],b[1]);out[2]=Math.min(a[2],b[2]);out[3]=Math.min(a[3],b[3]);return out};vec4.max=function(out,a,b){out[0]=Math.max(a[0],b[0]);out[1]=Math.max(a[1],b[1]);out[2]=Math.max(a[2],b[2]);out[3]=Math.max(a[3],b[3]);return out};vec4.round=function(out,a){out[0]=Math.round(a[0]);out[1]=Math.round(a[1]);out[2]=Math.round(a[2]);out[3]=Math.round(a[3]);return out};vec4.scale=function(out,a,b){out[0]=a[0]*b;out[1]=a[1]*b;out[2]=a[2]*b;out[3]=a[3]*b;return out};vec4.scaleAndAdd=function(out,a,b,scale){out[0]=a[0]+b[0]*scale;out[1]=a[1]+b[1]*scale;out[2]=a[2]+b[2]*scale;out[3]=a[3]+b[3]*scale;return out};vec4.distance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2],w=b[3]-a[3];return Math.sqrt(x*x+y*y+z*z+w*w)};vec4.dist=vec4.distance;vec4.squaredDistance=function(a,b){var x=b[0]-a[0],y=b[1]-a[1],z=b[2]-a[2],w=b[3]-a[3];return x*x+y*y+z*z+w*w};vec4.sqrDist=vec4.squaredDistance;vec4.length=function(a){var x=a[0],y=a[1],z=a[2],w=a[3];return Math.sqrt(x*x+y*y+z*z+w*w)};vec4.len=vec4.length;vec4.squaredLength=function(a){var x=a[0],y=a[1],z=a[2],w=a[3];return x*x+y*y+z*z+w*w};vec4.sqrLen=vec4.squaredLength;vec4.negate=function(out,a){out[0]=-a[0];out[1]=-a[1];out[2]=-a[2];out[3]=-a[3];return out};vec4.inverse=function(out,a){out[0]=1/a[0];out[1]=1/a[1];out[2]=1/a[2];out[3]=1/a[3];return out};vec4.normalize=function(out,a){var x=a[0],y=a[1],z=a[2],w=a[3];var len=x*x+y*y+z*z+w*w;if(len>0){len=1/Math.sqrt(len);out[0]=x*len;out[1]=y*len;out[2]=z*len;out[3]=w*len}return out};vec4.dot=function(a,b){return a[0]*b[0]+a[1]*b[1]+a[2]*b[2]+a[3]*b[3]};vec4.lerp=function(out,a,b,t){var ax=a[0],ay=a[1],az=a[2],aw=a[3];out[0]=ax+t*(b[0]-ax);out[1]=ay+t*(b[1]-ay);out[2]=az+t*(b[2]-az);out[3]=aw+t*(b[3]-aw);return out};vec4.random=function(out,scale){scale=scale||1;out[0]=glMatrix.RANDOM();out[1]=glMatrix.RANDOM();out[2]=glMatrix.RANDOM();out[3]=glMatrix.RANDOM();vec4.normalize(out,out);vec4.scale(out,out,scale);return out};vec4.transformMat4=function(out,a,m){var x=a[0],y=a[1],z=a[2],w=a[3];out[0]=m[0]*x+m[4]*y+m[8]*z+m[12]*w;out[1]=m[1]*x+m[5]*y+m[9]*z+m[13]*w;out[2]=m[2]*x+m[6]*y+m[10]*z+m[14]*w;out[3]=m[3]*x+m[7]*y+m[11]*z+m[15]*w;return out};vec4.transformQuat=function(out,a,q){var x=a[0],y=a[1],z=a[2],qx=q[0],qy=q[1],qz=q[2],qw=q[3],ix=qw*x+qy*z-qz*y,iy=qw*y+qz*x-qx*z,iz=qw*z+qx*y-qy*x,iw=-qx*x-qy*y-qz*z;out[0]=ix*qw+iw*-qx+iy*-qz-iz*-qy;out[1]=iy*qw+iw*-qy+iz*-qx-ix*-qz;out[2]=iz*qw+iw*-qz+ix*-qy-iy*-qx;out[3]=a[3];return out};vec4.forEach=function(){var vec=vec4.create();return function(a,stride,offset,count,fn,arg){var i,l;if(!stride){stride=4}if(!offset){offset=0}if(count){l=Math.min(count*stride+offset,a.length)}else{l=a.length}for(i=offset;i<l;i+=stride){vec[0]=a[i];vec[1]=a[i+1];vec[2]=a[i+2];vec[3]=a[i+3];fn(vec,vec,arg);a[i]=vec[0];a[i+1]=vec[1];a[i+2]=vec[2];a[i+3]=vec[3]}return a}}();vec4.str=function(a){return"vec4("+a[0]+", "+a[1]+", "+a[2]+", "+a[3]+")"};vec4.exactEquals=function(a,b){return a[0]===b[0]&&a[1]===b[1]&&a[2]===b[2]&&a[3]===b[3]};vec4.equals=function(a,b){var a0=a[0],a1=a[1],a2=a[2],a3=a[3];var b0=b[0],b1=b[1],b2=b[2],b3=b[3];return Math.abs(a0-b0)<=glMatrix.EPSILON*Math.max(1,Math.abs(a0),Math.abs(b0))&&Math.abs(a1-b1)<=glMatrix.EPSILON*Math.max(1,Math.abs(a1),Math.abs(b1))&&Math.abs(a2-b2)<=glMatrix.EPSILON*Math.max(1,Math.abs(a2),Math.abs(b2))&&Math.abs(a3-b3)<=glMatrix.EPSILON*Math.max(1,Math.abs(a3),Math.abs(b3))};module.exports=vec4},{"./common.js":155}],164:[function(require,module,exports){"use strict";module.exports=GridIndex;var NUM_PARAMS=3;function GridIndex(extent,n,padding){var cells=this.cells=[];if(extent instanceof ArrayBuffer){this.arrayBuffer=extent;var array=new Int32Array(this.arrayBuffer);extent=array[0];n=array[1];padding=array[2];this.d=n+2*padding;for(var k=0;k<this.d*this.d;k++){var start=array[NUM_PARAMS+k];var end=array[NUM_PARAMS+k+1];cells.push(start===end?null:array.subarray(start,end))}var keysOffset=array[NUM_PARAMS+cells.length];var bboxesOffset=array[NUM_PARAMS+cells.length+1];this.keys=array.subarray(keysOffset,bboxesOffset);this.bboxes=array.subarray(bboxesOffset);this.insert=this._insertReadonly}else{this.d=n+2*padding;for(var i=0;i<this.d*this.d;i++){cells.push([])}this.keys=[];this.bboxes=[]}this.n=n;this.extent=extent;this.padding=padding;this.scale=n/extent;this.uid=0;var p=padding/n*extent;this.min=-p;this.max=extent+p}GridIndex.prototype.insert=function(key,x1,y1,x2,y2){this._forEachCell(x1,y1,x2,y2,this._insertCell,this.uid++);this.keys.push(key);this.bboxes.push(x1);this.bboxes.push(y1);this.bboxes.push(x2);this.bboxes.push(y2)};GridIndex.prototype._insertReadonly=function(){throw"Cannot insert into a GridIndex created from an ArrayBuffer."};GridIndex.prototype._insertCell=function(x1,y1,x2,y2,cellIndex,uid){this.cells[cellIndex].push(uid)};GridIndex.prototype.query=function(x1,y1,x2,y2){var min=this.min;var max=this.max;if(x1<=min&&y1<=min&&max<=x2&&max<=y2){return Array.prototype.slice.call(this.keys)}else{var result=[];var seenUids={};this._forEachCell(x1,y1,x2,y2,this._queryCell,result,seenUids);return result}};GridIndex.prototype._queryCell=function(x1,y1,x2,y2,cellIndex,result,seenUids){var cell=this.cells[cellIndex];if(cell!==null){var keys=this.keys;var bboxes=this.bboxes;for(var u=0;u<cell.length;u++){var uid=cell[u];if(seenUids[uid]===undefined){var offset=uid*4;if(x1<=bboxes[offset+2]&&y1<=bboxes[offset+3]&&x2>=bboxes[offset+0]&&y2>=bboxes[offset+1]){seenUids[uid]=true;result.push(keys[uid])}else{seenUids[uid]=false}}}}};GridIndex.prototype._forEachCell=function(x1,y1,x2,y2,fn,arg1,arg2){var cx1=this._convertToCellCoord(x1);var cy1=this._convertToCellCoord(y1);var cx2=this._convertToCellCoord(x2);var cy2=this._convertToCellCoord(y2);for(var x=cx1;x<=cx2;x++){for(var y=cy1;y<=cy2;y++){var cellIndex=this.d*y+x;if(fn.call(this,x1,y1,x2,y2,cellIndex,arg1,arg2))return}}};GridIndex.prototype._convertToCellCoord=function(x){return Math.max(0,Math.min(this.d-1,Math.floor(x*this.scale)+this.padding))};GridIndex.prototype.toArrayBuffer=function(){if(this.arrayBuffer)return this.arrayBuffer;var cells=this.cells;var metadataLength=NUM_PARAMS+this.cells.length+1+1;var totalCellLength=0;for(var i=0;i<this.cells.length;i++){totalCellLength+=this.cells[i].length}var array=new Int32Array(metadataLength+totalCellLength+this.keys.length+this.bboxes.length);array[0]=this.extent;array[1]=this.n;array[2]=this.padding;var offset=metadataLength;for(var k=0;k<cells.length;k++){var cell=cells[k];array[NUM_PARAMS+k]=offset;array.set(cell,offset);offset+=cell.length}array[NUM_PARAMS+cells.length]=offset;array.set(this.keys,offset);offset+=this.keys.length;array[NUM_PARAMS+cells.length+1]=offset;array.set(this.bboxes,offset);offset+=this.bboxes.length;return array.buffer}},{}],165:[function(require,module,exports){var Kn=18,Xn=.95047,Yn=1,Zn=1.08883,t0=4/29,t1=6/29,t2=3*t1*t1,t3=t1*t1*t1,deg2rad=Math.PI/180,rad2deg=180/Math.PI;function xyz2lab(t){return t>t3?Math.pow(t,1/3):t/t2+t0}function lab2xyz(t){return t>t1?t*t*t:t2*(t-t0)}function xyz2rgb(x){return 255*(x<=.0031308?12.92*x:1.055*Math.pow(x,1/2.4)-.055)}function rgb2xyz(x){return(x/=255)<=.04045?x/12.92:Math.pow((x+.055)/1.055,2.4)}function rgbToLab(rgbColor){var b=rgb2xyz(rgbColor[0]),a=rgb2xyz(rgbColor[1]),l=rgb2xyz(rgbColor[2]),x=xyz2lab((.4124564*b+.3575761*a+.1804375*l)/Xn),y=xyz2lab((.2126729*b+.7151522*a+.072175*l)/Yn),z=xyz2lab((.0193339*b+.119192*a+.9503041*l)/Zn);return[116*y-16,500*(x-y),200*(y-z),rgbColor[3]]}function labToRgb(labColor){var y=(labColor[0]+16)/116,x=isNaN(labColor[1])?y:y+labColor[1]/500,z=isNaN(labColor[2])?y:y-labColor[2]/200;y=Yn*lab2xyz(y);x=Xn*lab2xyz(x);z=Zn*lab2xyz(z);return[xyz2rgb(3.2404542*x-1.5371385*y-.4985314*z),xyz2rgb(-.969266*x+1.8760108*y+.041556*z),xyz2rgb(.0556434*x-.2040259*y+1.0572252*z),labColor[3]]}function rgbToHcl(rgbColor){var labColor=rgbToLab(rgbColor);var l=labColor[0],a=labColor[1],b=labColor[2];var h=Math.atan2(b,a)*rad2deg;return[h<0?h+360:h,Math.sqrt(a*a+b*b),l,rgbColor[3]]}function hclToRgb(hclColor){var h=hclColor[0]*deg2rad,c=hclColor[1],l=hclColor[2];return labToRgb([l,Math.cos(h)*c,Math.sin(h)*c,hclColor[3]])}module.exports={lab:{forward:rgbToLab,reverse:labToRgb},hcl:{forward:rgbToHcl,reverse:hclToRgb}}},{}],166:[function(require,module,exports){"use strict";var colorSpaces=require("./color_spaces");function identityFunction(x){return x}function createFunction(parameters,defaultType){var fun;if(!isFunctionDefinition(parameters)){fun=function(){return parameters};fun.isFeatureConstant=true;fun.isZoomConstant=true}else{var zoomAndFeatureDependent=parameters.stops&&typeof parameters.stops[0][0]==="object";var featureDependent=zoomAndFeatureDependent||parameters.property!==undefined;var zoomDependent=zoomAndFeatureDependent||!featureDependent;var type=parameters.type||defaultType||"exponential";var innerFun;if(type==="exponential"){innerFun=evaluateExponentialFunction}else if(type==="interval"){innerFun=evaluateIntervalFunction}else if(type==="categorical"){innerFun=evaluateCategoricalFunction}else if(type==="identity"){innerFun=evaluateIdentityFunction}else{throw new Error('Unknown function type "'+type+'"')}var outputFunction;if(parameters.colorSpace&&parameters.colorSpace!=="rgb"){if(colorSpaces[parameters.colorSpace]){var colorspace=colorSpaces[parameters.colorSpace];parameters=JSON.parse(JSON.stringify(parameters));for(var s=0;s<parameters.stops.length;s++){parameters.stops[s]=[parameters.stops[s][0],colorspace.forward(parameters.stops[s][1])]}outputFunction=colorspace.reverse}else{throw new Error("Unknown color space: "+parameters.colorSpace)}}else{outputFunction=identityFunction}if(zoomAndFeatureDependent){var featureFunctions={};var featureFunctionStops=[];for(s=0;s<parameters.stops.length;s++){var stop=parameters.stops[s];if(featureFunctions[stop[0].zoom]===undefined){featureFunctions[stop[0].zoom]={zoom:stop[0].zoom,type:parameters.type,property:parameters.property,stops:[]}}featureFunctions[stop[0].zoom].stops.push([stop[0].value,stop[1]])}for(var z in featureFunctions){featureFunctionStops.push([featureFunctions[z].zoom,createFunction(featureFunctions[z])])}fun=function(zoom,feature){return outputFunction(evaluateExponentialFunction({stops:featureFunctionStops,base:parameters.base},zoom)(zoom,feature))};fun.isFeatureConstant=false;fun.isZoomConstant=false}else if(zoomDependent){fun=function(zoom){return outputFunction(innerFun(parameters,zoom))};fun.isFeatureConstant=true;fun.isZoomConstant=false}else{fun=function(zoom,feature){return outputFunction(innerFun(parameters,feature[parameters.property]))};fun.isFeatureConstant=false;fun.isZoomConstant=true}}return fun}function evaluateCategoricalFunction(parameters,input){for(var i=0;i<parameters.stops.length;i++){if(input===parameters.stops[i][0]){return parameters.stops[i][1]}}return parameters.stops[0][1]}function evaluateIntervalFunction(parameters,input){for(var i=0;i<parameters.stops.length;i++){if(input<parameters.stops[i][0])break}return parameters.stops[Math.max(i-1,0)][1]}function evaluateExponentialFunction(parameters,input){var base=parameters.base!==undefined?parameters.base:1;var i=0;while(true){if(i>=parameters.stops.length)break;else if(input<=parameters.stops[i][0])break;else i++}if(i===0){return parameters.stops[i][1]}else if(i===parameters.stops.length){return parameters.stops[i-1][1]}else{return interpolate(input,base,parameters.stops[i-1][0],parameters.stops[i][0],parameters.stops[i-1][1],parameters.stops[i][1])}}function evaluateIdentityFunction(parameters,input){return input}function interpolate(input,base,inputLower,inputUpper,outputLower,outputUpper){if(typeof outputLower==="function"){return function(){var evaluatedLower=outputLower.apply(undefined,arguments);var evaluatedUpper=outputUpper.apply(undefined,arguments);return interpolate(input,base,inputLower,inputUpper,evaluatedLower,evaluatedUpper)}}else if(outputLower.length){return interpolateArray(input,base,inputLower,inputUpper,outputLower,outputUpper)}else{return interpolateNumber(input,base,inputLower,inputUpper,outputLower,outputUpper)}}function interpolateNumber(input,base,inputLower,inputUpper,outputLower,outputUpper){var difference=inputUpper-inputLower;var progress=input-inputLower;var ratio;if(base===1){ratio=progress/difference}else{ratio=(Math.pow(base,progress)-1)/(Math.pow(base,difference)-1)}return outputLower*(1-ratio)+outputUpper*ratio}function interpolateArray(input,base,inputLower,inputUpper,outputLower,outputUpper){var output=[];for(var i=0;i<outputLower.length;i++){output[i]=interpolateNumber(input,base,inputLower,inputUpper,outputLower[i],outputUpper[i])}return output}function isFunctionDefinition(value){return typeof value==="object"&&(value.stops||value.type==="identity")}module.exports.isFunctionDefinition=isFunctionDefinition;module.exports.interpolated=function(parameters){return createFunction(parameters,"exponential")};module.exports["piecewise-constant"]=function(parameters){return createFunction(parameters,"interval")}},{"./color_spaces":165}],167:[function(require,module,exports){var path=require("path");module.exports={circle:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\n#pragma mapbox: define lowp vec4 color\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n\nvarying vec2 v_extrude;\nvarying lowp float v_antialiasblur;\n\nvoid main() {\n    #pragma mapbox: initialize lowp vec4 color\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n\n    float t = smoothstep(1.0 - max(blur, v_antialiasblur), 1.0, length(v_extrude));\n    gl_FragColor = color * (1.0 - t) * opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform mat4 u_matrix;\nuniform bool u_scale_with_map;\nuniform vec2 u_extrude_scale;\nuniform float u_devicepixelratio;\n\nattribute vec2 a_pos;\n\n#pragma mapbox: define lowp vec4 color\n#pragma mapbox: define mediump float radius\n#pragma mapbox: define lowp float blur\n#pragma mapbox: define lowp float opacity\n\nvarying vec2 v_extrude;\nvarying lowp float v_antialiasblur;\n\nvoid main(void) {\n    #pragma mapbox: initialize lowp vec4 color\n    #pragma mapbox: initialize mediump float radius\n    #pragma mapbox: initialize lowp float blur\n    #pragma mapbox: initialize lowp float opacity\n\n    // unencode the extrusion vector that we snuck into the a_pos vector\n    v_extrude = vec2(mod(a_pos, 2.0) * 2.0 - 1.0);\n\n    vec2 extrude = v_extrude * radius * u_extrude_scale;\n    // multiply a_pos by 0.5, since we had it * 2 in order to sneak\n    // in extrusion data\n    gl_Position = u_matrix * vec4(floor(a_pos * 0.5), 0, 1);\n\n    if (u_scale_with_map) {\n        gl_Position.xy += extrude;\n    } else {\n        gl_Position.xy += extrude * gl_Position.w;\n    }\n\n    // This is a minimum blur distance that serves as a faux-antialiasing for\n    // the circle. since blur is a ratio of the circle's size and the intent is\n    // to keep the blur at roughly 1px, the two are inversely related.\n    v_antialiasblur = 1.0 / u_devicepixelratio / radius;\n}\n"},collisionBox:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform float u_zoom;\nuniform float u_maxzoom;\n\nvarying float v_max_zoom;\nvarying float v_placement_zoom;\n\nvoid main() {\n\n    float alpha = 0.5;\n\n    gl_FragColor = vec4(0.0, 1.0, 0.0, 1.0) * alpha;\n\n    if (v_placement_zoom > u_zoom) {\n        gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0) * alpha;\n    }\n\n    if (u_zoom >= v_max_zoom) {\n        gl_FragColor = vec4(0.0, 0.0, 0.0, 1.0) * alpha * 0.25;\n    }\n\n    if (v_placement_zoom >= u_maxzoom) {\n        gl_FragColor = vec4(0.0, 0.0, 1.0, 1.0) * alpha * 0.2;\n    }\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nattribute vec2 a_pos;\nattribute vec2 a_extrude;\nattribute vec2 a_data;\n\nuniform mat4 u_matrix;\nuniform float u_scale;\n\nvarying float v_max_zoom;\nvarying float v_placement_zoom;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos + a_extrude / u_scale, 0.0, 1.0);\n\n    v_max_zoom = a_data.x;\n    v_placement_zoom = a_data.y;\n}\n"},debug:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform lowp vec4 u_color;\n\nvoid main() {\n    gl_FragColor = u_color;\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nattribute vec2 a_pos;\n\nuniform mat4 u_matrix;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, step(32767.0, a_pos.x), 1);\n}\n"},fill:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\n#pragma mapbox: define lowp vec4 color\n#pragma mapbox: define lowp float opacity\n\nvoid main() {\n    #pragma mapbox: initialize lowp vec4 color\n    #pragma mapbox: initialize lowp float opacity\n\n    gl_FragColor = color * opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nattribute vec2 a_pos;\n\nuniform mat4 u_matrix;\n\n#pragma mapbox: define lowp vec4 color\n#pragma mapbox: define lowp float opacity\n\nvoid main() {\n    #pragma mapbox: initialize lowp vec4 color\n    #pragma mapbox: initialize lowp float opacity\n\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n}\n"},fillOutline:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\n#pragma mapbox: define lowp vec4 outline_color\n#pragma mapbox: define lowp float opacity\n\nvarying vec2 v_pos;\n\nvoid main() {\n    #pragma mapbox: initialize lowp vec4 outline_color\n    #pragma mapbox: initialize lowp float opacity\n\n    float dist = length(v_pos - gl_FragCoord.xy);\n    float alpha = smoothstep(1.0, 0.0, dist);\n    gl_FragColor = outline_color * (alpha * opacity);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nattribute vec2 a_pos;\n\nuniform mat4 u_matrix;\nuniform vec2 u_world;\n\nvarying vec2 v_pos;\n\n#pragma mapbox: define lowp vec4 outline_color\n#pragma mapbox: define lowp float opacity\n\nvoid main() {\n    #pragma mapbox: initialize lowp vec4 outline_color\n    #pragma mapbox: initialize lowp float opacity\n\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n    v_pos = (gl_Position.xy / gl_Position.w + 1.0) / 2.0 * u_world;\n}\n"},fillOutlinePattern:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform float u_opacity;\nuniform vec2 u_pattern_tl_a;\nuniform vec2 u_pattern_br_a;\nuniform vec2 u_pattern_tl_b;\nuniform vec2 u_pattern_br_b;\nuniform float u_mix;\n\nuniform sampler2D u_image;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\nvarying vec2 v_pos;\n\nvoid main() {\n    vec2 imagecoord = mod(v_pos_a, 1.0);\n    vec2 pos = mix(u_pattern_tl_a, u_pattern_br_a, imagecoord);\n    vec4 color1 = texture2D(u_image, pos);\n\n    vec2 imagecoord_b = mod(v_pos_b, 1.0);\n    vec2 pos2 = mix(u_pattern_tl_b, u_pattern_br_b, imagecoord_b);\n    vec4 color2 = texture2D(u_image, pos2);\n\n    // find distance to outline for alpha interpolation\n\n    float dist = length(v_pos - gl_FragCoord.xy);\n    float alpha = smoothstep(1.0, 0.0, dist);\n    \n\n    gl_FragColor = mix(color1, color2, u_mix) * alpha * u_opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform vec2 u_pattern_size_a;\nuniform vec2 u_pattern_size_b;\nuniform vec2 u_pixel_coord_upper;\nuniform vec2 u_pixel_coord_lower;\nuniform float u_scale_a;\nuniform float u_scale_b;\nuniform float u_tile_units_to_pixels;\n\nattribute vec2 a_pos;\n\nuniform mat4 u_matrix;\nuniform vec2 u_world;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\nvarying vec2 v_pos;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n    vec2 scaled_size_a = u_scale_a * u_pattern_size_a;\n    vec2 scaled_size_b = u_scale_b * u_pattern_size_b;\n\n    // the correct offset needs to be calculated.\n    //\n    // The offset depends on how many pixels are between the world origin and\n    // the edge of the tile:\n    // vec2 offset = mod(pixel_coord, size)\n    //\n    // At high zoom levels there are a ton of pixels between the world origin\n    // and the edge of the tile. The glsl spec only guarantees 16 bits of\n    // precision for highp floats. We need more than that.\n    //\n    // The pixel_coord is passed in as two 16 bit values:\n    // pixel_coord_upper = floor(pixel_coord / 2^16)\n    // pixel_coord_lower = mod(pixel_coord, 2^16)\n    //\n    // The offset is calculated in a series of steps that should preserve this precision:\n    vec2 offset_a = mod(mod(mod(u_pixel_coord_upper, scaled_size_a) * 256.0, scaled_size_a) * 256.0 + u_pixel_coord_lower, scaled_size_a);\n    vec2 offset_b = mod(mod(mod(u_pixel_coord_upper, scaled_size_b) * 256.0, scaled_size_b) * 256.0 + u_pixel_coord_lower, scaled_size_b);\n\n    v_pos_a = (u_tile_units_to_pixels * a_pos + offset_a) / scaled_size_a;\n    v_pos_b = (u_tile_units_to_pixels * a_pos + offset_b) / scaled_size_b;\n\n    v_pos = (gl_Position.xy / gl_Position.w + 1.0) / 2.0 * u_world;\n}\n"},fillPattern:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform float u_opacity;\nuniform vec2 u_pattern_tl_a;\nuniform vec2 u_pattern_br_a;\nuniform vec2 u_pattern_tl_b;\nuniform vec2 u_pattern_br_b;\nuniform float u_mix;\n\nuniform sampler2D u_image;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\n\nvoid main() {\n\n    vec2 imagecoord = mod(v_pos_a, 1.0);\n    vec2 pos = mix(u_pattern_tl_a, u_pattern_br_a, imagecoord);\n    vec4 color1 = texture2D(u_image, pos);\n\n    vec2 imagecoord_b = mod(v_pos_b, 1.0);\n    vec2 pos2 = mix(u_pattern_tl_b, u_pattern_br_b, imagecoord_b);\n    vec4 color2 = texture2D(u_image, pos2);\n\n    gl_FragColor = mix(color1, color2, u_mix) * u_opacity;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",
vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform mat4 u_matrix;\nuniform vec2 u_pattern_size_a;\nuniform vec2 u_pattern_size_b;\nuniform vec2 u_pixel_coord_upper;\nuniform vec2 u_pixel_coord_lower;\nuniform float u_scale_a;\nuniform float u_scale_b;\nuniform float u_tile_units_to_pixels;\n\nattribute vec2 a_pos;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n    vec2 scaled_size_a = u_scale_a * u_pattern_size_a;\n    vec2 scaled_size_b = u_scale_b * u_pattern_size_b;\n\n    // the correct offset needs to be calculated.\n    //\n    // The offset depends on how many pixels are between the world origin and\n    // the edge of the tile:\n    // vec2 offset = mod(pixel_coord, size)\n    //\n    // At high zoom levels there are a ton of pixels between the world origin\n    // and the edge of the tile. The glsl spec only guarantees 16 bits of\n    // precision for highp floats. We need more than that.\n    //\n    // The pixel_coord is passed in as two 16 bit values:\n    // pixel_coord_upper = floor(pixel_coord / 2^16)\n    // pixel_coord_lower = mod(pixel_coord, 2^16)\n    //\n    // The offset is calculated in a series of steps that should preserve this precision:\n    vec2 offset_a = mod(mod(mod(u_pixel_coord_upper, scaled_size_a) * 256.0, scaled_size_a) * 256.0 + u_pixel_coord_lower, scaled_size_a);\n    vec2 offset_b = mod(mod(mod(u_pixel_coord_upper, scaled_size_b) * 256.0, scaled_size_b) * 256.0 + u_pixel_coord_lower, scaled_size_b);\n\n    v_pos_a = (u_tile_units_to_pixels * a_pos + offset_a) / scaled_size_a;\n    v_pos_b = (u_tile_units_to_pixels * a_pos + offset_b) / scaled_size_b;\n}\n"},fillExtrude:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nvarying vec4 v_color;\n#ifdef MAPBOX_GL_JS\n#pragma mapbox: define lowp float minH\n#pragma mapbox: define lowp float maxH\n#endif\n#pragma mapbox: define lowp vec4 color\n\nvoid main() {\n#ifdef MAPBOX_GL_JS\n    #pragma mapbox: initialize lowp float minH\n    #pragma mapbox: initialize lowp float maxH\n#endif\n    #pragma mapbox: initialize lowp vec4 color\n\n    gl_FragColor = v_color;\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform mat4 u_matrix;\nuniform vec3 u_lightcolor;\nuniform lowp vec3 u_lightpos;\nuniform lowp float u_lightintensity;\nuniform lowp vec4 u_outline_color;\n\nattribute vec2 a_pos;\nattribute vec3 a_normal;\nattribute float a_edgedistance;\n\nvarying vec4 v_color;\n\n#ifndef MAPBOX_GL_JS\nattribute float minH;\nattribute float maxH;\n#else\n#pragma mapbox: define lowp float minH\n#pragma mapbox: define lowp float maxH\n#endif\n\n#pragma mapbox: define lowp vec4 color\n\nvoid main() {\n#ifdef MAPBOX_GL_JS\n    #pragma mapbox: initialize lowp float minH\n    #pragma mapbox: initialize lowp float maxH\n#endif\n    #pragma mapbox: initialize lowp vec4 color\n\n    float ed = a_edgedistance; // use each attrib in order to not trip a VAO assert\n    float t = mod(a_normal.x, 2.0);\n\n    gl_Position = u_matrix * vec4(a_pos, t > 0.0 ? maxH : minH, 1);\n\n#ifdef OUTLINE\n    color = u_outline_color;\n#endif\n\n    // Relative luminance (how dark/bright is the surface color?)\n    float colorvalue = color.r * 0.2126 + color.g * 0.7152 + color.b * 0.0722;\n\n    v_color = vec4(0.0, 0.0, 0.0, 1.0);\n\n    // Add slight ambient lighting so no extrusions are totally black\n    vec4 ambientlight = vec4(0.03, 0.03, 0.03, 1.0);\n    color += ambientlight;\n\n    // Calculate cos(theta), where theta is the angle between surface normal and diffuse light ray\n    float directional = clamp(dot(a_normal / 16384.0, u_lightpos), 0.0, 1.0);\n\n    // Adjust directional so that\n    // the range of values for highlight/shading is narrower\n    // with lower light intensity\n    // and with lighter/brighter surface colors\n    directional = mix((1.0 - u_lightintensity), max((1.0 - colorvalue + u_lightintensity), 1.0), directional);\n\n    // Add gradient along z axis of side surfaces\n    if (a_normal.y != 0.0) {\n        directional *= clamp((t + minH) * pow(maxH / 150.0, 0.5), mix(0.7, 0.98, 1.0 - u_lightintensity), 1.0);\n    }\n\n    // Assign final color based on surface + ambient light color, diffuse light directional, and light color\n    // with lower bounds adjusted to hue of light\n    // so that shading is tinted with the complementary (opposite) color to the light color\n    v_color.r += clamp(color.r * directional * u_lightcolor.r, mix(0.0, 0.3, 1.0 - u_lightcolor.r), 1.0);\n    v_color.g += clamp(color.g * directional * u_lightcolor.g, mix(0.0, 0.3, 1.0 - u_lightcolor.g), 1.0);\n    v_color.b += clamp(color.b * directional * u_lightcolor.b, mix(0.0, 0.3, 1.0 - u_lightcolor.b), 1.0);\n}\n"},fillExtrudePattern:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform vec2 u_pattern_tl_a;\nuniform vec2 u_pattern_br_a;\nuniform vec2 u_pattern_tl_b;\nuniform vec2 u_pattern_br_b;\nuniform float u_mix;\n\nuniform sampler2D u_image;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\nvarying vec4 v_lighting;\n\n#ifdef MAPBOX_GL_JS\n#pragma mapbox: define lowp float minH\n#pragma mapbox: define lowp float maxH\n#endif\n#pragma mapbox: define lowp vec4 color\n\nvoid main() {\n#ifdef MAPBOX_GL_JS\n    #pragma mapbox: initialize lowp float minH\n    #pragma mapbox: initialize lowp float maxH\n#endif\n    #pragma mapbox: initialize lowp vec4 color\n\n    vec2 imagecoord = mod(v_pos_a, 1.0);\n    vec2 pos = mix(u_pattern_tl_a, u_pattern_br_a, imagecoord);\n    vec4 color1 = texture2D(u_image, pos);\n\n    vec2 imagecoord_b = mod(v_pos_b, 1.0);\n    vec2 pos2 = mix(u_pattern_tl_b, u_pattern_br_b, imagecoord_b);\n    vec4 color2 = texture2D(u_image, pos2);\n\n    vec4 mixedColor = mix(color1, color2, u_mix);\n\n    gl_FragColor = mixedColor * v_lighting;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform mat4 u_matrix;\nuniform vec2 u_pattern_size_a;\nuniform vec2 u_pattern_size_b;\nuniform vec2 u_pixel_coord_upper;\nuniform vec2 u_pixel_coord_lower;\nuniform float u_scale_a;\nuniform float u_scale_b;\nuniform float u_tile_units_to_pixels;\nuniform float u_height_factor;\n\nuniform vec3 u_lightcolor;\nuniform lowp vec3 u_lightpos;\nuniform lowp float u_lightintensity;\n\nattribute vec2 a_pos;\nattribute vec3 a_normal;\nattribute float a_edgedistance;\n\nvarying vec2 v_pos_a;\nvarying vec2 v_pos_b;\nvarying vec4 v_lighting;\nvarying float v_directional;\n\n#ifndef MAPBOX_GL_JS\nattribute float minH;\nattribute float maxH;\n#else\n#pragma mapbox: define lowp float minH\n#pragma mapbox: define lowp float maxH\n#endif\n\n#pragma mapbox: define lowp vec4 color\n\nvoid main() {\n#ifdef MAPBOX_GL_JS\n    #pragma mapbox: initialize lowp float minH\n    #pragma mapbox: initialize lowp float maxH\n#endif\n    #pragma mapbox: initialize lowp vec4 color\n\n    float t = mod(a_normal.x, 2.0);\n    float z = t > 0.0 ? maxH : minH;\n\n    gl_Position = u_matrix * vec4(a_pos, z, 1);\n\n    vec2 scaled_size_a = u_scale_a * u_pattern_size_a;\n    vec2 scaled_size_b = u_scale_b * u_pattern_size_b;\n\n    // the following offset calculation is duplicated from the regular pattern shader:\n    vec2 offset_a = mod(mod(mod(u_pixel_coord_upper, scaled_size_a) * 256.0, scaled_size_a) * 256.0 + u_pixel_coord_lower, scaled_size_a);\n    vec2 offset_b = mod(mod(mod(u_pixel_coord_upper, scaled_size_b) * 256.0, scaled_size_b) * 256.0 + u_pixel_coord_lower, scaled_size_b);\n\n    if (a_normal.x == 1.0 && a_normal.y == 0.0 && a_normal.z == 16384.0) {\n        // extrusion top\n        v_pos_a = (u_tile_units_to_pixels * a_pos + offset_a) / scaled_size_a;\n        v_pos_b = (u_tile_units_to_pixels * a_pos + offset_b) / scaled_size_b;\n    } else {\n        // extrusion side\n        float hf = z * u_height_factor;\n\n        v_pos_a = (u_tile_units_to_pixels * vec2(a_edgedistance, hf) + offset_a) / scaled_size_a;\n        v_pos_b = (u_tile_units_to_pixels * vec2(a_edgedistance, hf) + offset_b) / scaled_size_b;\n    }\n\n    v_lighting = vec4(0.0, 0.0, 0.0, 1.0);\n    float directional = clamp(dot(a_normal / 16383.0, u_lightpos), 0.0, 1.0);\n    directional = mix((1.0 - u_lightintensity), max((0.5 + u_lightintensity), 1.0), directional);\n\n    if (a_normal.y != 0.0) {\n        directional *= clamp((t + minH) * pow(maxH / 150.0, 0.5), mix(0.7, 0.98, 1.0 - u_lightintensity), 1.0);\n    }\n\n    v_lighting.rgb += clamp(directional * u_lightcolor, mix(vec3(0.0), vec3(0.3), 1.0 - u_lightcolor), vec3(1.0));\n}\n"},fillExtrudeTexture:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform sampler2D u_texture;\nuniform float u_opacity;\n\nvarying vec2 v_pos;\n\nvoid main() {\n    gl_FragColor = texture2D(u_texture, v_pos) * u_opacity;\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform mat4 u_matrix;\nuniform int u_xdim;\nuniform int u_ydim;\nattribute vec2 a_pos;\nvarying vec2 v_pos;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n\n    v_pos.x = a_pos.x / float(u_xdim);\n    v_pos.y = 1.0 - a_pos.y / float(u_ydim);\n}\n"},line:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform lowp float u_opacity;\nuniform float u_blur;\n\n#pragma mapbox: define lowp vec4 color\n\nvarying vec2 v_linewidth;\nvarying vec2 v_normal;\nvarying float v_gamma_scale;\n\nvoid main() {\n    #pragma mapbox: initialize lowp vec4 color\n\n    // Calculate the distance of the pixel from the line in pixels.\n    float dist = length(v_normal) * v_linewidth.s;\n\n    // Calculate the antialiasing fade factor. This is either when fading in\n    // the line in case of an offset line (v_linewidth.t) or when fading out\n    // (v_linewidth.s)\n    float blur = u_blur * v_gamma_scale;\n    float alpha = clamp(min(dist - (v_linewidth.t - blur), v_linewidth.s - dist) / blur, 0.0, 1.0);\n\n    gl_FragColor = color * (alpha * u_opacity);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\n// floor(127 / 2) == 63.0\n// the maximum allowed miter limit is 2.0 at the moment. the extrude normal is\n// stored in a byte (-128..127). we scale regular normals up to length 63, but\n// there are also \"special\" normals that have a bigger length (of up to 126 in\n// this case).\n// #define scale 63.0\n#define scale 0.015873016\n\nattribute vec2 a_pos;\nattribute vec4 a_data;\n\nuniform mat4 u_matrix;\nuniform mediump float u_ratio;\nuniform mediump float u_linewidth;\nuniform mediump float u_gapwidth;\nuniform mediump float u_antialiasing;\nuniform mediump float u_extra;\nuniform mat2 u_antialiasingmatrix;\nuniform mediump float u_offset;\nuniform mediump float u_blur;\n\nvarying vec2 v_normal;\nvarying vec2 v_linewidth;\nvarying float v_gamma_scale;\n\n#pragma mapbox: define lowp vec4 color\n\nvoid main() {\n    #pragma mapbox: initialize lowp vec4 color\n\n    vec2 a_extrude = a_data.xy - 128.0;\n    float a_direction = mod(a_data.z, 4.0) - 1.0;\n\n    // We store the texture normals in the most insignificant bit\n    // transform y so that 0 => -1 and 1 => 1\n    // In the texture normal, x is 0 if the normal points straight up/down and 1 if it's a round cap\n    // y is 1 if the normal points up, and -1 if it points down\n    mediump vec2 normal = mod(a_pos, 2.0);\n    normal.y = sign(normal.y - 0.5);\n    v_normal = normal;\n\n    float inset = u_gapwidth + (u_gapwidth > 0.0 ? u_antialiasing : 0.0);\n    float outset = u_gapwidth + u_linewidth * (u_gapwidth > 0.0 ? 2.0 : 1.0) + u_antialiasing;\n\n    // Scale the extrusion vector down to a normal and then up by the line width\n    // of this vertex.\n    mediump vec2 dist = outset * a_extrude * scale;\n\n    // Calculate the offset when drawing a line that is to the side of the actual line.\n    // We do this by creating a vector that points towards the extrude, but rotate\n    // it when we're drawing round end points (a_direction = -1 or 1) since their\n    // extrude vector points in another direction.\n    mediump float u = 0.5 * a_direction;\n    mediump float t = 1.0 - abs(u);\n    mediump vec2 offset = u_offset * a_extrude * scale * normal.y * mat2(t, -u, u, t);\n\n    // Remove the texture normal bit of the position before scaling it with the\n    // model/view matrix.\n    gl_Position = u_matrix * vec4(floor(a_pos * 0.5) + (offset + dist) / u_ratio, 0.0, 1.0);\n\n    // position of y on the screen\n    float y = gl_Position.y / gl_Position.w;\n\n    // how much features are squished in the y direction by the tilt\n    float squish_scale = length(a_extrude) / length(u_antialiasingmatrix * a_extrude);\n\n    // how much features are squished in all directions by the perspectiveness\n    float perspective_scale = 1.0 / (1.0 - min(y * u_extra, 0.9));\n\n    v_linewidth = vec2(outset, inset);\n    v_gamma_scale = perspective_scale * squish_scale;\n}\n"},linePattern:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform float u_blur;\n\nuniform vec2 u_pattern_size_a;\nuniform vec2 u_pattern_size_b;\nuniform vec2 u_pattern_tl_a;\nuniform vec2 u_pattern_br_a;\nuniform vec2 u_pattern_tl_b;\nuniform vec2 u_pattern_br_b;\nuniform float u_fade;\nuniform float u_opacity;\n\nuniform sampler2D u_image;\n\nvarying vec2 v_normal;\nvarying vec2 v_linewidth;\nvarying float v_linesofar;\nvarying float v_gamma_scale;\n\nvoid main() {\n    // Calculate the distance of the pixel from the line in pixels.\n    float dist = length(v_normal) * v_linewidth.s;\n\n    // Calculate the antialiasing fade factor. This is either when fading in\n    // the line in case of an offset line (v_linewidth.t) or when fading out\n    // (v_linewidth.s)\n    float blur = u_blur * v_gamma_scale;\n    float alpha = clamp(min(dist - (v_linewidth.t - blur), v_linewidth.s - dist) / blur, 0.0, 1.0);\n\n    float x_a = mod(v_linesofar / u_pattern_size_a.x, 1.0);\n    float x_b = mod(v_linesofar / u_pattern_size_b.x, 1.0);\n    float y_a = 0.5 + (v_normal.y * v_linewidth.s / u_pattern_size_a.y);\n    float y_b = 0.5 + (v_normal.y * v_linewidth.s / u_pattern_size_b.y);\n    vec2 pos_a = mix(u_pattern_tl_a, u_pattern_br_a, vec2(x_a, y_a));\n    vec2 pos_b = mix(u_pattern_tl_b, u_pattern_br_b, vec2(x_b, y_b));\n\n    vec4 color = mix(texture2D(u_image, pos_a), texture2D(u_image, pos_b), u_fade);\n\n    alpha *= u_opacity;\n\n    gl_FragColor = color * alpha;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\n// floor(127 / 2) == 63.0\n// the maximum allowed miter limit is 2.0 at the moment. the extrude normal is\n// stored in a byte (-128..127). we scale regular normals up to length 63, but\n// there are also \"special\" normals that have a bigger length (of up to 126 in\n// this case).\n// #define scale 63.0\n#define scale 0.015873016\n\n// We scale the distance before adding it to the buffers so that we can store\n// long distances for long segments. Use this value to unscale the distance.\n#define LINE_DISTANCE_SCALE 2.0\n\nattribute vec2 a_pos;\nattribute vec4 a_data;\n\nuniform mat4 u_matrix;\nuniform mediump float u_ratio;\nuniform mediump float u_linewidth;\nuniform mediump float u_gapwidth;\nuniform mediump float u_antialiasing;\nuniform mediump float u_extra;\nuniform mat2 u_antialiasingmatrix;\nuniform mediump float u_offset;\n\nvarying vec2 v_normal;\nvarying vec2 v_linewidth;\nvarying float v_linesofar;\nvarying float v_gamma_scale;\n\nvoid main() {\n    vec2 a_extrude = a_data.xy - 128.0;\n    float a_direction = mod(a_data.z, 4.0) - 1.0;\n    float a_linesofar = (floor(a_data.z / 4.0) + a_data.w * 64.0) * LINE_DISTANCE_SCALE;\n\n    // We store the texture normals in the most insignificant bit\n    // transform y so that 0 => -1 and 1 => 1\n    // In the texture normal, x is 0 if the normal points straight up/down and 1 if it's a round cap\n    // y is 1 if the normal points up, and -1 if it points down\n    mediump vec2 normal = mod(a_pos, 2.0);\n    normal.y = sign(normal.y - 0.5);\n    v_normal = normal;\n\n    float inset = u_gapwidth + (u_gapwidth > 0.0 ? u_antialiasing : 0.0);\n    float outset = u_gapwidth + u_linewidth * (u_gapwidth > 0.0 ? 2.0 : 1.0) + u_antialiasing;\n\n    // Scale the extrusion vector down to a normal and then up by the line width\n    // of this vertex.\n    mediump vec2 dist = outset * a_extrude * scale;\n\n    // Calculate the offset when drawing a line that is to the side of the actual line.\n    // We do this by creating a vector that points towards the extrude, but rotate\n    // it when we're drawing round end points (a_direction = -1 or 1) since their\n    // extrude vector points in another direction.\n    mediump float u = 0.5 * a_direction;\n    mediump float t = 1.0 - abs(u);\n    mediump vec2 offset = u_offset * a_extrude * scale * normal.y * mat2(t, -u, u, t);\n\n    // Remove the texture normal bit of the position before scaling it with the\n    // model/view matrix.\n    gl_Position = u_matrix * vec4(floor(a_pos * 0.5) + (offset + dist) / u_ratio, 0.0, 1.0);\n    v_linesofar = a_linesofar;\n\n    // position of y on the screen\n    float y = gl_Position.y / gl_Position.w;\n\n    // how much features are squished in the y direction by the tilt\n    float squish_scale = length(a_extrude) / length(u_antialiasingmatrix * a_extrude);\n\n    // how much features are squished in all directions by the perspectiveness\n    float perspective_scale = 1.0 / (1.0 - min(y * u_extra, 0.9));\n\n    v_linewidth = vec2(outset, inset);\n    v_gamma_scale = perspective_scale * squish_scale;\n}\n"},lineSDF:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform lowp float u_opacity;\n\nuniform float u_blur;\nuniform sampler2D u_image;\nuniform float u_sdfgamma;\nuniform float u_mix;\n\nvarying vec2 v_normal;\nvarying vec2 v_linewidth;\nvarying vec2 v_tex_a;\nvarying vec2 v_tex_b;\nvarying float v_gamma_scale;\n\n#pragma mapbox: define lowp vec4 color\n\nvoid main() {\n    #pragma mapbox: initialize lowp vec4 color\n\n    // Calculate the distance of the pixel from the line in pixels.\n    float dist = length(v_normal) * v_linewidth.s;\n\n    // Calculate the antialiasing fade factor. This is either when fading in\n    // the line in case of an offset line (v_linewidth.t) or when fading out\n    // (v_linewidth.s)\n    float blur = u_blur * v_gamma_scale;\n    float alpha = clamp(min(dist - (v_linewidth.t - blur), v_linewidth.s - dist) / blur, 0.0, 1.0);\n\n    float sdfdist_a = texture2D(u_image, v_tex_a).a;\n    float sdfdist_b = texture2D(u_image, v_tex_b).a;\n    float sdfdist = mix(sdfdist_a, sdfdist_b, u_mix);\n    alpha *= smoothstep(0.5 - u_sdfgamma, 0.5 + u_sdfgamma, sdfdist);\n\n    gl_FragColor = color * (alpha * u_opacity);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\n// floor(127 / 2) == 63.0\n// the maximum allowed miter limit is 2.0 at the moment. the extrude normal is\n// stored in a byte (-128..127). we scale regular normals up to length 63, but\n// there are also \"special\" normals that have a bigger length (of up to 126 in\n// this case).\n// #define scale 63.0\n#define scale 0.015873016\n\n// We scale the distance before adding it to the buffers so that we can store\n// long distances for long segments. Use this value to unscale the distance.\n#define LINE_DISTANCE_SCALE 2.0\n\nattribute vec2 a_pos;\nattribute vec4 a_data;\n\nuniform mat4 u_matrix;\nuniform mediump float u_ratio;\nuniform mediump float u_linewidth;\nuniform mediump float u_gapwidth;\nuniform mediump float u_antialiasing;\nuniform vec2 u_patternscale_a;\nuniform float u_tex_y_a;\nuniform vec2 u_patternscale_b;\nuniform float u_tex_y_b;\nuniform float u_extra;\nuniform mat2 u_antialiasingmatrix;\nuniform mediump float u_offset;\n\nvarying vec2 v_normal;\nvarying vec2 v_linewidth;\nvarying vec2 v_tex_a;\nvarying vec2 v_tex_b;\nvarying float v_gamma_scale;\n\n#pragma mapbox: define lowp vec4 color\n\nvoid main() {\n    #pragma mapbox: initialize lowp vec4 color\n\n    vec2 a_extrude = a_data.xy - 128.0;\n    float a_direction = mod(a_data.z, 4.0) - 1.0;\n    float a_linesofar = (floor(a_data.z / 4.0) + a_data.w * 64.0) * LINE_DISTANCE_SCALE;\n\n    // We store the texture normals in the most insignificant bit\n    // transform y so that 0 => -1 and 1 => 1\n    // In the texture normal, x is 0 if the normal points straight up/down and 1 if it's a round cap\n    // y is 1 if the normal points up, and -1 if it points down\n    mediump vec2 normal = mod(a_pos, 2.0);\n    normal.y = sign(normal.y - 0.5);\n    v_normal = normal;\n\n    float inset = u_gapwidth + (u_gapwidth > 0.0 ? u_antialiasing : 0.0);\n    float outset = u_gapwidth + u_linewidth * (u_gapwidth > 0.0 ? 2.0 : 1.0) + u_antialiasing;\n\n    // Scale the extrusion vector down to a normal and then up by the line width\n    // of this vertex.\n    mediump vec2 dist = outset * a_extrude * scale;\n\n    // Calculate the offset when drawing a line that is to the side of the actual line.\n    // We do this by creating a vector that points towards the extrude, but rotate\n    // it when we're drawing round end points (a_direction = -1 or 1) since their\n    // extrude vector points in another direction.\n    mediump float u = 0.5 * a_direction;\n    mediump float t = 1.0 - abs(u);\n    mediump vec2 offset = u_offset * a_extrude * scale * normal.y * mat2(t, -u, u, t);\n\n    // Remove the texture normal bit of the position before scaling it with the\n    // model/view matrix.\n    gl_Position = u_matrix * vec4(floor(a_pos * 0.5) + (offset + dist) / u_ratio, 0.0, 1.0);\n\n    v_tex_a = vec2(a_linesofar * u_patternscale_a.x, normal.y * u_patternscale_a.y + u_tex_y_a);\n    v_tex_b = vec2(a_linesofar * u_patternscale_b.x, normal.y * u_patternscale_b.y + u_tex_y_b);\n\n    // position of y on the screen\n    float y = gl_Position.y / gl_Position.w;\n\n    // how much features are squished in the y direction by the tilt\n    float squish_scale = length(a_extrude) / length(u_antialiasingmatrix * a_extrude);\n\n    // how much features are squished in all directions by the perspectiveness\n    float perspective_scale = 1.0 / (1.0 - min(y * u_extra, 0.9));\n\n    v_linewidth = vec2(outset, inset);\n    v_gamma_scale = perspective_scale * squish_scale;\n}\n"},raster:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform float u_opacity0;\nuniform float u_opacity1;\nuniform sampler2D u_image0;\nuniform sampler2D u_image1;\nvarying vec2 v_pos0;\nvarying vec2 v_pos1;\n\nuniform float u_brightness_low;\nuniform float u_brightness_high;\n\nuniform float u_saturation_factor;\nuniform float u_contrast_factor;\nuniform vec3 u_spin_weights;\n\nvoid main() {\n\n    // read and cross-fade colors from the main and parent tiles\n    vec4 color0 = texture2D(u_image0, v_pos0);\n    vec4 color1 = texture2D(u_image1, v_pos1);\n    vec4 color = color0 * u_opacity0 + color1 * u_opacity1;\n    vec3 rgb = color.rgb;\n\n    // spin\n    rgb = vec3(\n        dot(rgb, u_spin_weights.xyz),\n        dot(rgb, u_spin_weights.zxy),\n        dot(rgb, u_spin_weights.yzx));\n\n    // saturation\n    float average = (color.r + color.g + color.b) / 3.0;\n    rgb += (average - rgb) * u_saturation_factor;\n\n    // contrast\n    rgb = (rgb - 0.5) * u_contrast_factor + 0.5;\n\n    // brightness\n    vec3 u_high_vec = vec3(u_brightness_low, u_brightness_low, u_brightness_low);\n    vec3 u_low_vec = vec3(u_brightness_high, u_brightness_high, u_brightness_high);\n\n    gl_FragColor = vec4(mix(u_high_vec, u_low_vec, rgb), color.a);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform mat4 u_matrix;\nuniform vec2 u_tl_parent;\nuniform float u_scale_parent;\nuniform float u_buffer_scale;\n\nattribute vec2 a_pos;\nattribute vec2 a_texture_pos;\n\nvarying vec2 v_pos0;\nvarying vec2 v_pos1;\n\nvoid main() {\n    gl_Position = u_matrix * vec4(a_pos, 0, 1);\n    v_pos0 = (((a_texture_pos / 32767.0) - 0.5) / u_buffer_scale ) + 0.5;\n    v_pos1 = (v_pos0 * u_scale_parent) + u_tl_parent;\n}\n"},symbolIcon:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform sampler2D u_texture;\nuniform sampler2D u_fadetexture;\nuniform lowp float u_opacity;\n\nvarying vec2 v_tex;\nvarying vec2 v_fade_tex;\n\nvoid main() {\n    lowp float alpha = texture2D(u_fadetexture, v_fade_tex).a * u_opacity;\n    gl_FragColor = texture2D(u_texture, v_tex) * alpha;\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nattribute vec2 a_pos;\nattribute vec2 a_offset;\nattribute vec2 a_texture_pos;\nattribute vec4 a_data;\n\n\n// matrix is for the vertex position.\nuniform mat4 u_matrix;\n\nuniform mediump float u_zoom;\nuniform bool u_rotate_with_map;\nuniform vec2 u_extrude_scale;\n\nuniform vec2 u_texsize;\n\nvarying vec2 v_tex;\nvarying vec2 v_fade_tex;\n\nvoid main() {\n    vec2 a_tex = a_texture_pos.xy;\n    mediump float a_labelminzoom = a_data[0];\n    mediump vec2 a_zoom = a_data.pq;\n    mediump float a_minzoom = a_zoom[0];\n    mediump float a_maxzoom = a_zoom[1];\n\n    // u_zoom is the current zoom level adjusted for the change in font size\n    mediump float z = 2.0 - step(a_minzoom, u_zoom) - (1.0 - step(a_maxzoom, u_zoom));\n\n    vec2 extrude = u_extrude_scale * (a_offset / 64.0);\n    if (u_rotate_with_map) {\n        gl_Position = u_matrix * vec4(a_pos + extrude, 0, 1);\n        gl_Position.z += z * gl_Position.w;\n    } else {\n        gl_Position = u_matrix * vec4(a_pos, 0, 1) + vec4(extrude, 0, 0);\n    }\n\n    v_tex = a_tex / u_texsize;\n    v_fade_tex = vec2(a_labelminzoom / 255.0, 0.0);\n}\n"},symbolSDF:{fragmentSource:"#ifdef GL_ES\nprecision mediump float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nuniform sampler2D u_texture;\nuniform sampler2D u_fadetexture;\nuniform lowp vec4 u_color;\nuniform lowp float u_opacity;\nuniform lowp float u_buffer;\nuniform lowp float u_gamma;\n\nvarying vec2 v_tex;\nvarying vec2 v_fade_tex;\nvarying float v_gamma_scale;\n\nvoid main() {\n    lowp float dist = texture2D(u_texture, v_tex).a;\n    lowp float fade_alpha = texture2D(u_fadetexture, v_fade_tex).a;\n    lowp float gamma = u_gamma * v_gamma_scale;\n    lowp float alpha = smoothstep(u_buffer - gamma, u_buffer + gamma, dist) * fade_alpha;\n\n    gl_FragColor = u_color * (alpha * u_opacity);\n\n#ifdef OVERDRAW_INSPECTOR\n    gl_FragColor = vec4(1.0);\n#endif\n}\n",vertexSource:"#ifdef GL_ES\nprecision highp float;\n#else\n#define lowp\n#define mediump\n#define highp\n#endif\n\nconst float PI = 3.141592653589793;\n\nattribute vec2 a_pos;\nattribute vec2 a_offset;\nattribute vec2 a_texture_pos;\nattribute vec4 a_data;\n\n\n// matrix is for the vertex position.\nuniform mat4 u_matrix;\n\nuniform mediump float u_zoom;\nuniform bool u_rotate_with_map;\nuniform bool u_pitch_with_map;\nuniform mediump float u_pitch;\nuniform mediump float u_bearing;\nuniform mediump float u_aspect_ratio;\nuniform vec2 u_extrude_scale;\n\nuniform vec2 u_texsize;\n\nvarying vec2 v_tex;\nvarying vec2 v_fade_tex;\nvarying float v_gamma_scale;\n\nvoid main() {\n    vec2 a_tex = a_texture_pos.xy;\n    mediump float a_labelminzoom = a_data[0];\n    mediump vec2 a_zoom = a_data.pq;\n    mediump float a_minzoom = a_zoom[0];\n    mediump float a_maxzoom = a_zoom[1];\n\n    // u_zoom is the current zoom level adjusted for the change in font size\n    mediump float z = 2.0 - step(a_minzoom, u_zoom) - (1.0 - step(a_maxzoom, u_zoom));\n\n    // pitch-alignment: map\n    // rotation-alignment: map | viewport\n    if (u_pitch_with_map) {\n        lowp float angle = u_rotate_with_map ? (a_data[1] / 256.0 * 2.0 * PI) : u_bearing;\n        lowp float asin = sin(angle);\n        lowp float acos = cos(angle);\n        mat2 RotationMatrix = mat2(acos, asin, -1.0 * asin, acos);\n        vec2 offset = RotationMatrix * a_offset;\n        vec2 extrude = u_extrude_scale * (offset / 64.0);\n        gl_Position = u_matrix * vec4(a_pos + extrude, 0, 1);\n        gl_Position.z += z * gl_Position.w;\n    // pitch-alignment: viewport\n    // rotation-alignment: map\n    } else if (u_rotate_with_map) {\n        // foreshortening factor to apply on pitched maps\n        // as a label goes from horizontal <=> vertical in angle\n        // it goes from 0% foreshortening to up to around 70% foreshortening\n        lowp float pitchfactor = 1.0 - cos(u_pitch * sin(u_pitch * 0.75));\n\n        lowp float lineangle = a_data[1] / 256.0 * 2.0 * PI;\n\n        // use the lineangle to position points a,b along the line\n        // project the points and calculate the label angle in projected space\n        // this calculation allows labels to be rendered unskewed on pitched maps\n        vec4 a = u_matrix * vec4(a_pos, 0, 1);\n        vec4 b = u_matrix * vec4(a_pos + vec2(cos(lineangle),sin(lineangle)), 0, 1);\n        lowp float angle = atan((b[1]/b[3] - a[1]/a[3])/u_aspect_ratio, b[0]/b[3] - a[0]/a[3]);\n        lowp float asin = sin(angle);\n        lowp float acos = cos(angle);\n        mat2 RotationMatrix = mat2(acos, -1.0 * asin, asin, acos);\n\n        vec2 offset = RotationMatrix * (vec2((1.0-pitchfactor)+(pitchfactor*cos(angle*2.0)), 1.0) * a_offset);\n        vec2 extrude = u_extrude_scale * (offset / 64.0);\n        gl_Position = u_matrix * vec4(a_pos, 0, 1) + vec4(extrude, 0, 0);\n        gl_Position.z += z * gl_Position.w;\n    // pitch-alignment: viewport\n    // rotation-alignment: viewport\n    } else {\n        vec2 extrude = u_extrude_scale * (a_offset / 64.0);\n        gl_Position = u_matrix * vec4(a_pos, 0, 1) + vec4(extrude, 0, 0);\n    }\n\n    v_gamma_scale = (gl_Position.w - 0.5);\n\n    v_tex = a_tex / u_texsize;\n    v_fade_tex = vec2(a_labelminzoom / 255.0, 0.0);\n}\n"}};module.exports.util="float evaluate_zoom_function_1(const vec4 values, const float t) {\n    if (t < 1.0) {\n        return mix(values[0], values[1], t);\n    } else if (t < 2.0) {\n        return mix(values[1], values[2], t - 1.0);\n    } else {\n        return mix(values[2], values[3], t - 2.0);\n    }\n}\nvec4 evaluate_zoom_function_4(const vec4 value0, const vec4 value1, const vec4 value2, const vec4 value3, const float t) {\n    if (t < 1.0) {\n        return mix(value0, value1, t);\n    } else if (t < 2.0) {\n        return mix(value1, value2, t - 1.0);\n    } else {\n        return mix(value2, value3, t - 2.0);\n    }\n}\n"},{path:1}],168:[function(require,module,exports){"use strict";var format=require("util").format;function ValidationError(key,value){this.message=(key?key+": ":"")+format.apply(format,Array.prototype.slice.call(arguments,2));if(value!==null&&value!==undefined&&value.__line__){this.line=value.__line__}}module.exports=ValidationError},{util:11
}],169:[function(require,module,exports){"use strict";module.exports=function(output){for(var i=1;i<arguments.length;i++){var input=arguments[i];for(var k in input){output[k]=input[k]}}return output}},{}],170:[function(require,module,exports){"use strict";module.exports=function getType(val){if(val instanceof Number){return"number"}else if(val instanceof String){return"string"}else if(val instanceof Boolean){return"boolean"}else if(Array.isArray(val)){return"array"}else if(val===null){return"null"}else{return typeof val}}},{}],171:[function(require,module,exports){"use strict";module.exports=function unbundle(value){if(value instanceof Number||value instanceof String||value instanceof Boolean){return value.valueOf()}else{return value}}},{}],172:[function(require,module,exports){"use strict";var ValidationError=require("../error/validation_error");var getType=require("../util/get_type");var extend=require("../util/extend");module.exports=function validate(options){var validateFunction=require("./validate_function");var validateObject=require("./validate_object");var VALIDATORS={"*":function(){return[]},array:require("./validate_array"),boolean:require("./validate_boolean"),number:require("./validate_number"),color:require("./validate_color"),constants:require("./validate_constants"),enum:require("./validate_enum"),filter:require("./validate_filter"),function:require("./validate_function"),layer:require("./validate_layer"),object:require("./validate_object"),source:require("./validate_source"),string:require("./validate_string")};var value=options.value;var valueSpec=options.valueSpec;var key=options.key;var styleSpec=options.styleSpec;var style=options.style;if(getType(value)==="string"&&value[0]==="@"){if(styleSpec.$version>7){return[new ValidationError(key,value,"constants have been deprecated as of v8")]}if(!(value in style.constants)){return[new ValidationError(key,value,'constant "%s" not found',value)]}options=extend({},options,{value:style.constants[value]})}if(valueSpec.function&&getType(value)==="object"){return validateFunction(options)}else if(valueSpec.type&&VALIDATORS[valueSpec.type]){return VALIDATORS[valueSpec.type](options)}else{return validateObject(extend({},options,{valueSpec:valueSpec.type?styleSpec[valueSpec.type]:valueSpec}))}}},{"../error/validation_error":168,"../util/extend":169,"../util/get_type":170,"./validate_array":173,"./validate_boolean":174,"./validate_color":175,"./validate_constants":176,"./validate_enum":177,"./validate_filter":178,"./validate_function":179,"./validate_layer":181,"./validate_number":184,"./validate_object":185,"./validate_source":187,"./validate_string":188}],173:[function(require,module,exports){"use strict";var getType=require("../util/get_type");var validate=require("./validate");var ValidationError=require("../error/validation_error");module.exports=function validateArray(options){var array=options.value;var arraySpec=options.valueSpec;var style=options.style;var styleSpec=options.styleSpec;var key=options.key;var validateArrayElement=options.arrayElementValidator||validate;if(getType(array)!=="array"){return[new ValidationError(key,array,"array expected, %s found",getType(array))]}if(arraySpec.length&&array.length!==arraySpec.length){return[new ValidationError(key,array,"array length %d expected, length %d found",arraySpec.length,array.length)]}if(arraySpec["min-length"]&&array.length<arraySpec["min-length"]){return[new ValidationError(key,array,"array length at least %d expected, length %d found",arraySpec["min-length"],array.length)]}var arrayElementSpec={type:arraySpec.value};if(styleSpec.$version<7){arrayElementSpec.function=arraySpec.function}if(getType(arraySpec.value)==="object"){arrayElementSpec=arraySpec.value}var errors=[];for(var i=0;i<array.length;i++){errors=errors.concat(validateArrayElement({array:array,arrayIndex:i,value:array[i],valueSpec:arrayElementSpec,style:style,styleSpec:styleSpec,key:key+"["+i+"]"}))}return errors}},{"../error/validation_error":168,"../util/get_type":170,"./validate":172}],174:[function(require,module,exports){"use strict";var getType=require("../util/get_type");var ValidationError=require("../error/validation_error");module.exports=function validateBoolean(options){var value=options.value;var key=options.key;var type=getType(value);if(type!=="boolean"){return[new ValidationError(key,value,"boolean expected, %s found",type)]}return[]}},{"../error/validation_error":168,"../util/get_type":170}],175:[function(require,module,exports){"use strict";var ValidationError=require("../error/validation_error");var getType=require("../util/get_type");var parseCSSColor=require("csscolorparser").parseCSSColor;module.exports=function validateColor(options){var key=options.key;var value=options.value;var type=getType(value);if(type!=="string"){return[new ValidationError(key,value,"color expected, %s found",type)]}if(parseCSSColor(value)===null){return[new ValidationError(key,value,'color expected, "%s" found',value)]}return[]}},{"../error/validation_error":168,"../util/get_type":170,csscolorparser:140}],176:[function(require,module,exports){"use strict";var ValidationError=require("../error/validation_error");var getType=require("../util/get_type");module.exports=function validateConstants(options){var key=options.key;var constants=options.value;var styleSpec=options.styleSpec;if(styleSpec.$version>7){if(constants){return[new ValidationError(key,constants,"constants have been deprecated as of v8")]}else{return[]}}else{var type=getType(constants);if(type!=="object"){return[new ValidationError(key,constants,"object expected, %s found",type)]}var errors=[];for(var constantName in constants){if(constantName[0]!=="@"){errors.push(new ValidationError(key+"."+constantName,constants[constantName],'constants must start with "@"'))}}return errors}}},{"../error/validation_error":168,"../util/get_type":170}],177:[function(require,module,exports){"use strict";var ValidationError=require("../error/validation_error");var unbundle=require("../util/unbundle_jsonlint");module.exports=function validateEnum(options){var key=options.key;var value=options.value;var valueSpec=options.valueSpec;var errors=[];if(Array.isArray(valueSpec.values)){if(valueSpec.values.indexOf(unbundle(value))===-1){errors.push(new ValidationError(key,value,"expected one of [%s], %s found",valueSpec.values.join(", "),value))}}else{if(Object.keys(valueSpec.values).indexOf(unbundle(value))===-1){errors.push(new ValidationError(key,value,"expected one of [%s], %s found",Object.keys(valueSpec.values).join(", "),value))}}return errors}},{"../error/validation_error":168,"../util/unbundle_jsonlint":171}],178:[function(require,module,exports){"use strict";var ValidationError=require("../error/validation_error");var validateEnum=require("./validate_enum");var getType=require("../util/get_type");var unbundle=require("../util/unbundle_jsonlint");module.exports=function validateFilter(options){var value=options.value;var key=options.key;var styleSpec=options.styleSpec;var type;var errors=[];if(getType(value)!=="array"){return[new ValidationError(key,value,"array expected, %s found",getType(value))]}if(value.length<1){return[new ValidationError(key,value,"filter array must have at least 1 element")]}errors=errors.concat(validateEnum({key:key+"[0]",value:value[0],valueSpec:styleSpec.filter_operator,style:options.style,styleSpec:options.styleSpec}));switch(unbundle(value[0])){case"<":case"<=":case">":case">=":if(value.length>=2&&value[1]=="$type"){errors.push(new ValidationError(key,value,'"$type" cannot be use with operator "%s"',value[0]))}case"==":case"!=":if(value.length!=3){errors.push(new ValidationError(key,value,'filter array for operator "%s" must have 3 elements',value[0]))}case"in":case"!in":if(value.length>=2){type=getType(value[1]);if(type!=="string"){errors.push(new ValidationError(key+"[1]",value[1],"string expected, %s found",type))}else if(value[1][0]==="@"){errors.push(new ValidationError(key+"[1]",value[1],"filter key cannot be a constant"))}}for(var i=2;i<value.length;i++){type=getType(value[i]);if(value[1]=="$type"){errors=errors.concat(validateEnum({key:key+"["+i+"]",value:value[i],valueSpec:styleSpec.geometry_type,style:options.style,styleSpec:options.styleSpec}))}else if(type==="string"&&value[i][0]==="@"){errors.push(new ValidationError(key+"["+i+"]",value[i],"filter value cannot be a constant"))}else if(type!=="string"&&type!=="number"&&type!=="boolean"){errors.push(new ValidationError(key+"["+i+"]",value[i],"string, number, or boolean expected, %s found",type))}}break;case"any":case"all":case"none":for(i=1;i<value.length;i++){errors=errors.concat(validateFilter({key:key+"["+i+"]",value:value[i],style:options.style,styleSpec:options.styleSpec}))}break;case"has":case"!has":type=getType(value[1]);if(value.length!==2){errors.push(new ValidationError(key,value,'filter array for "%s" operator must have 2 elements',value[0]))}else if(type!=="string"){errors.push(new ValidationError(key+"[1]",value[1],"string expected, %s found",type))}else if(value[1][0]==="@"){errors.push(new ValidationError(key+"[1]",value[1],"filter key cannot be a constant"))}break}return errors}},{"../error/validation_error":168,"../util/get_type":170,"../util/unbundle_jsonlint":171,"./validate_enum":177}],179:[function(require,module,exports){"use strict";var ValidationError=require("../error/validation_error");var getType=require("../util/get_type");var validate=require("./validate");var validateObject=require("./validate_object");var validateArray=require("./validate_array");var validateNumber=require("./validate_number");var unbundle=require("../util/unbundle_jsonlint");module.exports=function validateFunction(options){var functionValueSpec=options.valueSpec;var functionValue=options.value;var stopKeyType;var isPropertyFunction=options.value.property!==undefined||stopKeyType==="object";var isZoomFunction=options.value.property===undefined||stopKeyType==="object";var errors=validateObject({key:options.key,value:options.value,valueSpec:options.styleSpec.function,style:options.style,styleSpec:options.styleSpec,objectElementValidators:{stops:validateFunctionStops}});if(unbundle(options.value.type)!=="identity"&&!options.value.stops){errors.push(new ValidationError(options.key,options.value,'missing required property "stops"'))}if(options.styleSpec.$version>=8){if(isPropertyFunction&&!options.valueSpec["property-function"]){errors.push(new ValidationError(options.key,options.value,"property functions not supported"))}else if(isZoomFunction&&!options.valueSpec["zoom-function"]){errors.push(new ValidationError(options.key,options.value,"zoom functions not supported"))}}return errors;function validateFunctionStops(options){if(unbundle(functionValue.type)==="identity"){return[new ValidationError(options.key,options.value,'identity function may not have a "stops" property')]}var errors=[];var value=options.value;errors=errors.concat(validateArray({key:options.key,value:value,valueSpec:options.valueSpec,style:options.style,styleSpec:options.styleSpec,arrayElementValidator:validateFunctionStop}));if(getType(value)==="array"&&value.length===0){errors.push(new ValidationError(options.key,value,"array must have at least one stop"))}return errors}function validateFunctionStop(options){var errors=[];var value=options.value;var key=options.key;if(getType(value)!=="array"){return[new ValidationError(key,value,"array expected, %s found",getType(value))]}if(value.length!==2){return[new ValidationError(key,value,"array length %d expected, length %d found",2,value.length)]}var type=getType(value[0]);if(!stopKeyType)stopKeyType=type;if(type!==stopKeyType){return[new ValidationError(key,value,"%s stop key type must match previous stop key type %s",type,stopKeyType)]}if(type==="object"){if(value[0].zoom===undefined){return[new ValidationError(key,value,"object stop key must have zoom")]}if(value[0].value===undefined){return[new ValidationError(key,value,"object stop key must have value")]}errors=errors.concat(validateObject({key:key+"[0]",value:value[0],valueSpec:{zoom:{}},style:options.style,styleSpec:options.styleSpec,objectElementValidators:{zoom:validateNumber,value:validateValue}}))}else{errors=errors.concat((isZoomFunction?validateNumber:validateValue)({key:key+"[0]",value:value[0],valueSpec:{},style:options.style,styleSpec:options.styleSpec}))}errors=errors.concat(validate({key:key+"[1]",value:value[1],valueSpec:functionValueSpec,style:options.style,styleSpec:options.styleSpec}));if(getType(value[0])==="number"){if(functionValueSpec.function==="piecewise-constant"&&value[0]%1!==0){errors.push(new ValidationError(key+"[0]",value[0],"zoom level for piecewise-constant functions must be an integer"))}if(options.arrayIndex!==0){if(value[0]<options.array[options.arrayIndex-1][0]){errors.push(new ValidationError(key+"[0]",value[0],"array stops must appear in ascending order"))}}}return errors}function validateValue(options){var errors=[];var type=getType(options.value);if(type!=="number"&&type!=="string"&&type!=="array"){errors.push(new ValidationError(options.key,options.value,"property value must be a number, string or array"))}return errors}}},{"../error/validation_error":168,"../util/get_type":170,"../util/unbundle_jsonlint":171,"./validate":172,"./validate_array":173,"./validate_number":184,"./validate_object":185}],180:[function(require,module,exports){"use strict";var ValidationError=require("../error/validation_error");var validateString=require("./validate_string");module.exports=function(options){var value=options.value;var key=options.key;var errors=validateString(options);if(errors.length)return errors;if(value.indexOf("{fontstack}")===-1){errors.push(new ValidationError(key,value,'"glyphs" url must include a "{fontstack}" token'))}if(value.indexOf("{range}")===-1){errors.push(new ValidationError(key,value,'"glyphs" url must include a "{range}" token'))}return errors}},{"../error/validation_error":168,"./validate_string":188}],181:[function(require,module,exports){"use strict";var ValidationError=require("../error/validation_error");var unbundle=require("../util/unbundle_jsonlint");var validateObject=require("./validate_object");var validateFilter=require("./validate_filter");var validatePaintProperty=require("./validate_paint_property");var validateLayoutProperty=require("./validate_layout_property");var extend=require("../util/extend");module.exports=function validateLayer(options){var errors=[];var layer=options.value;var key=options.key;var style=options.style;var styleSpec=options.styleSpec;if(!layer.type&&!layer.ref){errors.push(new ValidationError(key,layer,'either "type" or "ref" is required'))}var type=unbundle(layer.type);var ref=unbundle(layer.ref);if(layer.id){for(var i=0;i<options.arrayIndex;i++){var otherLayer=style.layers[i];if(unbundle(otherLayer.id)===unbundle(layer.id)){errors.push(new ValidationError(key,layer.id,'duplicate layer id "%s", previously used at line %d',layer.id,otherLayer.id.__line__))}}}if("ref"in layer){["type","source","source-layer","filter","layout"].forEach(function(p){if(p in layer){errors.push(new ValidationError(key,layer[p],'"%s" is prohibited for ref layers',p))}});var parent;style.layers.forEach(function(layer){if(layer.id==ref)parent=layer});if(!parent){errors.push(new ValidationError(key,layer.ref,'ref layer "%s" not found',ref))}else if(parent.ref){errors.push(new ValidationError(key,layer.ref,"ref cannot reference another ref layer"))}else{type=unbundle(parent.type)}}else if(type!=="background"){if(!layer.source){errors.push(new ValidationError(key,layer,'missing required property "source"'))}else{var source=style.sources&&style.sources[layer.source];if(!source){errors.push(new ValidationError(key,layer.source,'source "%s" not found',layer.source))}else if(source.type=="vector"&&type=="raster"){errors.push(new ValidationError(key,layer.source,'layer "%s" requires a raster source',layer.id))}else if(source.type=="raster"&&type!="raster"){errors.push(new ValidationError(key,layer.source,'layer "%s" requires a vector source',layer.id))}else if(source.type=="vector"&&!layer["source-layer"]){errors.push(new ValidationError(key,layer,'layer "%s" must specify a "source-layer"',layer.id))}}}errors=errors.concat(validateObject({key:key,value:layer,valueSpec:styleSpec.layer,style:options.style,styleSpec:options.styleSpec,objectElementValidators:{filter:validateFilter,layout:function(options){return validateObject({layer:layer,key:options.key,value:options.value,style:options.style,styleSpec:options.styleSpec,objectElementValidators:{"*":function(options){return validateLayoutProperty(extend({layerType:type},options))}}})},paint:function(options){return validateObject({layer:layer,key:options.key,value:options.value,style:options.style,styleSpec:options.styleSpec,objectElementValidators:{"*":function(options){return validatePaintProperty(extend({layerType:type},options))}}})}}}));return errors}},{"../error/validation_error":168,"../util/extend":169,"../util/unbundle_jsonlint":171,"./validate_filter":178,"./validate_layout_property":182,"./validate_object":185,"./validate_paint_property":186}],182:[function(require,module,exports){"use strict";var validate=require("./validate");var ValidationError=require("../error/validation_error");module.exports=function validateLayoutProperty(options){var key=options.key;var style=options.style;var styleSpec=options.styleSpec;var value=options.value;var propertyKey=options.objectKey;var layerSpec=styleSpec["layout_"+options.layerType];if(!layerSpec)return[];if(options.valueSpec||layerSpec[propertyKey]){var errors=[];if(options.layerType==="symbol"){if(propertyKey==="icon-image"&&style&&!style.sprite){errors.push(new ValidationError(key,value,'use of "icon-image" requires a style "sprite" property'))}else if(propertyKey==="text-field"&&style&&!style.glyphs){errors.push(new ValidationError(key,value,'use of "text-field" requires a style "glyphs" property'))}}return errors.concat(validate({key:options.key,value:value,valueSpec:options.valueSpec||layerSpec[propertyKey],style:style,styleSpec:styleSpec}))}else{return[new ValidationError(key,value,'unknown property "%s"',propertyKey)]}}},{"../error/validation_error":168,"./validate":172}],183:[function(require,module,exports){"use strict";var ValidationError=require("../error/validation_error");var getType=require("../util/get_type");var validate=require("./validate");var validateTypes={enum:require("./validate_enum"),color:require("./validate_color"),array:require("./validate_array"),number:require("./validate_number"),function:require("./validate_function")};module.exports=function validateLight(options){var light=options.value;var styleSpec=options.styleSpec;var lightSpec=styleSpec.$root.light;var style=options.style;var errors=[];var type;for(var key in light){var transitionMatch=key.match(/^(.*)-transition$/);if(transitionMatch&&lightSpec[transitionMatch[1]]&&lightSpec[transitionMatch[1]].transition){var baseKey=transitionMatch[1];type=lightSpec[baseKey].type;errors=errors.concat(validate({key:key,value:light[key],valueSpec:styleSpec.transition,style:style,styleSpec:styleSpec}))}else if(lightSpec[key]){type=lightSpec[key].type;if(lightSpec[key].function&&getType(light[key])==="object")type="function";errors=errors.concat(validateTypes[type]({key:key,value:light[key],valueSpec:lightSpec[key],style:style,styleSpec:styleSpec}))}else{errors=errors.concat([new ValidationError(key,light[key],'unknown property "%s"',key)])}}return errors}},{"../error/validation_error":168,"../util/get_type":170,"./validate":172,"./validate_array":173,"./validate_color":175,"./validate_enum":177,"./validate_function":179,"./validate_number":184}],184:[function(require,module,exports){"use strict";var getType=require("../util/get_type");var ValidationError=require("../error/validation_error");module.exports=function validateNumber(options){var key=options.key;var value=options.value;var valueSpec=options.valueSpec;var type=getType(value);if(type!=="number"){return[new ValidationError(key,value,"number expected, %s found",type)]}if("minimum"in valueSpec&&value<valueSpec.minimum){return[new ValidationError(key,value,"%s is less than the minimum value %s",value,valueSpec.minimum)]}if("maximum"in valueSpec&&value>valueSpec.maximum){return[new ValidationError(key,value,"%s is greater than the maximum value %s",value,valueSpec.maximum)]}return[]}},{"../error/validation_error":168,"../util/get_type":170}],185:[function(require,module,exports){"use strict";var ValidationError=require("../error/validation_error");var getType=require("../util/get_type");var validate=require("./validate");module.exports=function validateObject(options){var key=options.key;var object=options.value;var valueSpec=options.valueSpec;var objectElementValidators=options.objectElementValidators||{};var style=options.style;var styleSpec=options.styleSpec;var errors=[];var type=getType(object);if(type!=="object"){return[new ValidationError(key,object,"object expected, %s found",type)]}for(var objectKey in object){var valueSpecKey=objectKey.split(".")[0];var objectElementSpec=valueSpec&&(valueSpec[valueSpecKey]||valueSpec["*"]);var objectElementValidator=objectElementValidators[valueSpecKey]||objectElementValidators["*"];if(objectElementSpec||objectElementValidator){errors=errors.concat((objectElementValidator||validate)({key:(key?key+".":key)+objectKey,value:object[objectKey],valueSpec:objectElementSpec,style:style,styleSpec:styleSpec,object:object,objectKey:objectKey}))}else if(key!==""&&key.split(".").length!==1){errors.push(new ValidationError(key,object[objectKey],'unknown property "%s"',objectKey))}}for(valueSpecKey in valueSpec){if(valueSpec[valueSpecKey].required&&valueSpec[valueSpecKey]["default"]===undefined&&object[valueSpecKey]===undefined){errors.push(new ValidationError(key,object,'missing required property "%s"',valueSpecKey))}}return errors}},{"../error/validation_error":168,"../util/get_type":170,"./validate":172}],186:[function(require,module,exports){"use strict";var validate=require("./validate");var ValidationError=require("../error/validation_error");module.exports=function validatePaintProperty(options){var key=options.key;var style=options.style;var styleSpec=options.styleSpec;var value=options.value;var propertyKey=options.objectKey;var layerSpec=styleSpec["paint_"+options.layerType];if(!layerSpec)return[];var transitionMatch=propertyKey.match(/^(.*)-transition$/);if(transitionMatch&&layerSpec[transitionMatch[1]]&&layerSpec[transitionMatch[1]].transition){return validate({key:key,value:value,valueSpec:styleSpec.transition,style:style,styleSpec:styleSpec})}else if(options.valueSpec||layerSpec[propertyKey]){return validate({key:options.key,value:value,valueSpec:options.valueSpec||layerSpec[propertyKey],style:style,styleSpec:styleSpec})}else{return[new ValidationError(key,value,'unknown property "%s"',propertyKey)]}}},{"../error/validation_error":168,"./validate":172}],187:[function(require,module,exports){"use strict";var ValidationError=require("../error/validation_error");var unbundle=require("../util/unbundle_jsonlint");var validateObject=require("./validate_object");var validateEnum=require("./validate_enum");module.exports=function validateSource(options){var value=options.value;var key=options.key;var styleSpec=options.styleSpec;var style=options.style;if(!value.type){return[new ValidationError(key,value,'"type" is required')]}var type=unbundle(value.type);switch(type){case"vector":case"raster":var errors=[];errors=errors.concat(validateObject({key:key,value:value,valueSpec:styleSpec.source_tile,style:options.style,styleSpec:styleSpec}));if("url"in value){for(var prop in value){if(["type","url","tileSize"].indexOf(prop)<0){errors.push(new ValidationError(key+"."+prop,value[prop],'a source with a "url" property may not include a "%s" property',prop))}}}return errors;case"geojson":return validateObject({key:key,value:value,valueSpec:styleSpec.source_geojson,style:style,styleSpec:styleSpec});case"video":return validateObject({key:key,value:value,valueSpec:styleSpec.source_video,style:style,styleSpec:styleSpec});case"image":return validateObject({key:key,value:value,valueSpec:styleSpec.source_image,style:style,styleSpec:styleSpec});default:return validateEnum({key:key+".type",value:value.type,valueSpec:{values:["vector","raster","geojson","video","image"]},style:style,styleSpec:styleSpec})}}},{"../error/validation_error":168,"../util/unbundle_jsonlint":171,"./validate_enum":177,"./validate_object":185}],188:[function(require,module,exports){"use strict";var getType=require("../util/get_type");var ValidationError=require("../error/validation_error");module.exports=function validateString(options){var value=options.value;var key=options.key;var type=getType(value);if(type!=="string"){return[new ValidationError(key,value,"string expected, %s found",type)]}return[]}},{"../error/validation_error":168,"../util/get_type":170}],189:[function(require,module,exports){"use strict";var validateConstants=require("./validate/validate_constants");var validate=require("./validate/validate");var latestStyleSpec=require("../reference/latest.min");var validateGlyphsURL=require("./validate/validate_glyphs_url");function validateStyleMin(style,styleSpec){styleSpec=styleSpec||latestStyleSpec;var errors=[];errors=errors.concat(validate({key:"",value:style,valueSpec:styleSpec.$root,styleSpec:styleSpec,style:style,objectElementValidators:{glyphs:validateGlyphsURL}}));if(styleSpec.$version>7&&style.constants){errors=errors.concat(validateConstants({key:"constants",value:style.constants,style:style,styleSpec:styleSpec}))}return sortErrors(errors)}validateStyleMin.source=wrapCleanErrors(require("./validate/validate_source"));validateStyleMin.light=wrapCleanErrors(require("./validate/validate_light"));validateStyleMin.layer=wrapCleanErrors(require("./validate/validate_layer"));validateStyleMin.filter=wrapCleanErrors(require("./validate/validate_filter"));validateStyleMin.paintProperty=wrapCleanErrors(require("./validate/validate_paint_property"));validateStyleMin.layoutProperty=wrapCleanErrors(require("./validate/validate_layout_property"));function sortErrors(errors){return[].concat(errors).sort(function(a,b){return a.line-b.line})}function wrapCleanErrors(inner){return function(){return sortErrors(inner.apply(this,arguments))}}module.exports=validateStyleMin},{"../reference/latest.min":190,"./validate/validate":172,"./validate/validate_constants":176,"./validate/validate_filter":178,"./validate/validate_glyphs_url":180,"./validate/validate_layer":181,"./validate/validate_layout_property":182,"./validate/validate_light":183,"./validate/validate_paint_property":186,"./validate/validate_source":187}],190:[function(require,module,exports){module.exports=require("./v8.min.json")},{"./v8.min.json":191}],191:[function(require,module,exports){module.exports={$version:8,$root:{version:{required:true,type:"enum",values:[8]},name:{type:"string"},metadata:{type:"*"},center:{type:"array",value:"number"},zoom:{type:"number"},bearing:{type:"number",default:0,period:360,units:"degrees"},pitch:{type:"number",default:0,units:"degrees"},light:{anchor:{type:"enum",default:"viewport",values:{map:{},viewport:{}},transition:false},position:{type:"array",default:[1.15,210,30],length:3,value:"number",transition:true,function:"interpolated","zoom-function":true,"property-function":false},color:{type:"color",default:"#ffffff",function:"interpolated","zoom-function":true,"property-function":false,transition:true},intensity:{type:"number",default:.5,minimum:0,maximum:1,function:"interpolated","zoom-function":true,"property-function":false,transition:true}},sources:{required:true,type:"sources"},sprite:{type:"string"},glyphs:{type:"string"},transition:{type:"transition"},layers:{required:true,type:"array",value:"layer"}},sources:{"*":{type:"source"}},source:["source_tile","source_geojson","source_video","source_image"],source_tile:{type:{required:true,type:"enum",values:{vector:{},raster:{}}},url:{type:"string"},tiles:{type:"array",value:"string"},minzoom:{type:"number",default:0},maxzoom:{type:"number",default:22},tileSize:{type:"number",default:512,units:"pixels"},"*":{type:"*"}},source_geojson:{type:{required:true,type:"enum",values:{geojson:{}}},data:{type:"*"},maxzoom:{type:"number",default:18},buffer:{type:"number",default:128,maximum:512,minimum:0},tolerance:{type:"number",default:.375},cluster:{type:"boolean",default:false},clusterRadius:{type:"number",default:50,minimum:0},clusterMaxZoom:{type:"number"}},source_video:{type:{required:true,type:"enum",values:{video:{}}},urls:{required:true,type:"array",value:"string"},coordinates:{required:true,type:"array",length:4,value:{type:"array",length:2,value:"number"}}},source_image:{type:{required:true,type:"enum",values:{image:{}}},url:{required:true,type:"string"},coordinates:{required:true,type:"array",length:4,value:{type:"array",length:2,value:"number"}}},layer:{id:{type:"string",required:true},type:{type:"enum",values:{fill:{},line:{},symbol:{},circle:{},raster:{},background:{}}},metadata:{type:"*"},ref:{type:"string"},source:{type:"string"},"source-layer":{type:"string"},minzoom:{type:"number",minimum:0,maximum:22},maxzoom:{type:"number",minimum:0,maximum:22},interactive:{type:"boolean",default:false},filter:{type:"filter"},layout:{type:"layout"},paint:{type:"paint"},"paint.*":{type:"paint"}},layout:["layout_fill","layout_line","layout_circle","layout_symbol","layout_raster","layout_background"],layout_background:{visibility:{type:"enum",function:"piecewise-constant","zoom-function":true,values:{visible:{},none:{}},default:"visible"}},layout_fill:{visibility:{type:"enum",function:"piecewise-constant","zoom-function":true,values:{visible:{},none:{}},default:"visible"}},layout_circle:{visibility:{type:"enum",function:"piecewise-constant","zoom-function":true,values:{visible:{},none:{}},default:"visible"}},layout_line:{"line-cap":{type:"enum",function:"piecewise-constant","zoom-function":true,"property-function":true,values:{butt:{},round:{},square:{}},default:"butt"},"line-join":{type:"enum",function:"piecewise-constant","zoom-function":true,"property-function":true,values:{bevel:{},round:{},miter:{}},default:"miter"},"line-miter-limit":{type:"number",default:2,function:"interpolated","zoom-function":true,"property-function":true,requires:[{"line-join":"miter"}]},"line-round-limit":{type:"number",default:1.05,function:"interpolated","zoom-function":true,"property-function":true,requires:[{"line-join":"round"}]},visibility:{type:"enum",function:"piecewise-constant","zoom-function":true,values:{visible:{},none:{}},default:"visible"}},layout_symbol:{"symbol-placement":{type:"enum",function:"piecewise-constant","zoom-function":true,"property-function":true,values:{point:{},line:{}},default:"point"},"symbol-spacing":{type:"number",default:250,minimum:1,function:"interpolated","zoom-function":true,"property-function":true,units:"pixels",requires:[{"symbol-placement":"line"}]},"symbol-avoid-edges":{type:"boolean",function:"piecewise-constant","zoom-function":true,"property-function":true,default:false},"icon-allow-overlap":{type:"boolean",function:"piecewise-constant","zoom-function":true,"property-function":true,default:false,requires:["icon-image"]},"icon-ignore-placement":{type:"boolean",function:"piecewise-constant","zoom-function":true,"property-function":true,default:false,requires:["icon-image"]},"icon-optional":{type:"boolean",function:"piecewise-constant","zoom-function":true,"property-function":true,default:false,requires:["icon-image","text-field"]},"icon-rotation-alignment":{type:"enum",function:"piecewise-constant","zoom-function":true,"property-function":true,values:{map:{},viewport:{},auto:{}},default:"auto",requires:["icon-image"]},"icon-size":{type:"number",default:1,minimum:0,function:"interpolated","zoom-function":true,"property-function":true,requires:["icon-image"]},"icon-text-fit":{
type:"enum",function:"piecewise-constant","zoom-function":true,"property-function":false,values:{none:{},width:{},height:{},both:{}},default:"none",requires:["icon-image","text-field"]},"icon-text-fit-padding":{type:"array",value:"number",length:4,default:[0,0,0,0],units:"pixels",function:"interpolated","zoom-function":true,"property-function":true,requires:["icon-image","text-field",{"icon-text-fit":["both","width","height"]}]},"icon-image":{type:"string",function:"piecewise-constant","zoom-function":true,"property-function":true,tokens:true},"icon-rotate":{type:"number",default:0,period:360,function:"interpolated","zoom-function":true,"property-function":true,units:"degrees",requires:["icon-image"]},"icon-padding":{type:"number",default:2,minimum:0,function:"interpolated","zoom-function":true,"property-function":true,units:"pixels",requires:["icon-image"]},"icon-keep-upright":{type:"boolean",function:"piecewise-constant","zoom-function":true,"property-function":true,default:false,requires:["icon-image",{"icon-rotation-alignment":"map"},{"symbol-placement":"line"}]},"icon-offset":{type:"array",value:"number",length:2,default:[0,0],function:"interpolated","zoom-function":true,"property-function":true,requires:["icon-image"]},"text-pitch-alignment":{type:"enum",function:"piecewise-constant","zoom-function":true,"property-function":true,values:{map:{},viewport:{},auto:{}},default:"auto",requires:["text-field"]},"text-rotation-alignment":{type:"enum",function:"piecewise-constant","zoom-function":true,"property-function":true,values:{map:{},viewport:{},auto:{}},default:"auto",requires:["text-field"]},"text-field":{type:"string",function:"piecewise-constant","zoom-function":true,"property-function":true,default:"",tokens:true},"text-font":{type:"array",value:"string",function:"piecewise-constant","zoom-function":true,"property-function":true,default:["Open Sans Regular","Arial Unicode MS 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:0,minimum:0,transition:true,requires:[{"<=":"fill-extrude-height"}]}},paint_line:{"line-opacity":{type:"number",function:"interpolated","zoom-function":true,"property-function":true,default:1,minimum:0,maximum:1,transition:true},"line-color":{type:"color",default:"#000000",function:"interpolated","zoom-function":true,"property-function":true,transition:true,requires:[{"!":"line-pattern"}]},"line-translate":{type:"array",value:"number",length:2,default:[0,0],function:"interpolated","zoom-function":true,"property-function":true,transition:true,units:"pixels"},"line-translate-anchor":{type:"enum",function:"piecewise-constant","zoom-function":true,"property-function":true,values:{map:{},viewport:{}},default:"map",requires:["line-translate"]},"line-width":{type:"number",default:1,minimum:0,function:"interpolated","zoom-function":true,"property-function":true,transition:true,units:"pixels"},"line-gap-width":{type:"number",default:0,minimum:0,function:"interpolated","zoom-function":true,"property-function":true,transition:true,units:"pixels"},"line-offset":{type:"number",default:0,function:"interpolated","zoom-function":true,"property-function":true,transition:true,units:"pixels"},"line-blur":{type:"number",default:0,minimum:0,function:"interpolated","zoom-function":true,"property-function":true,transition:true,units:"pixels"},"line-dasharray":{type:"array",value:"number",function:"piecewise-constant","zoom-function":true,"property-function":true,minimum:0,transition:true,units:"line 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0)",function:"interpolated","zoom-function":true,"property-function":true,transition:true,requires:["icon-image"]},"icon-halo-width":{type:"number",default:0,minimum:0,function:"interpolated","zoom-function":true,"property-function":true,transition:true,units:"pixels",requires:["icon-image"]},"icon-halo-blur":{type:"number",default:0,minimum:0,function:"interpolated","zoom-function":true,"property-function":true,transition:true,units:"pixels",requires:["icon-image"]},"icon-translate":{type:"array",value:"number",length:2,default:[0,0],function:"interpolated","zoom-function":true,"property-function":true,transition:true,units:"pixels",requires:["icon-image"]},"icon-translate-anchor":{type:"enum",function:"piecewise-constant","zoom-function":true,"property-function":true,values:{map:{},viewport:{}},default:"map",requires:["icon-image","icon-translate"]},"text-opacity":{type:"number",default:1,minimum:0,maximum:1,function:"interpolated","zoom-function":true,"property-function":true,transition:true,requires:["text-field"]},"text-color":{type:"color",default:"#000000",function:"interpolated","zoom-function":true,"property-function":true,transition:true,requires:["text-field"]},"text-halo-color":{type:"color",default:"rgba(0, 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0)",function:"interpolated","zoom-function":true,"property-function":true,transition:true,requires:["text-field"]},"text-halo-width":{type:"number",default:0,minimum:0,function:"interpolated","zoom-function":true,"property-function":true,transition:true,units:"pixels",requires:["text-field"]},"text-halo-blur":{type:"number",default:0,minimum:0,function:"interpolated","zoom-function":true,"property-function":true,transition:true,units:"pixels",requires:["text-field"]},"text-translate":{type:"array",value:"number",length:2,default:[0,0],function:"interpolated","zoom-function":true,"property-function":true,transition:true,units:"pixels",requires:["text-field"]},"text-translate-anchor":{type:"enum",function:"piecewise-constant","zoom-function":true,"property-function":true,values:{map:{},viewport:{}},default:"map",requires:["text-field","text-translate"]}},paint_raster:{"raster-opacity":{type:"number",default:1,minimum:0,maximum:1,function:"interpolated","zoom-function":true,transition:true},"raster-hue-rotate":{type:"number",default:0,period:360,function:"interpolated","zoom-function":true,transition:true,units:"degrees"},"raster-brightness-min":{type:"number",function:"interpolated","zoom-function":true,default:0,minimum:0,maximum:1,transition:true},"raster-brightness-max":{type:"number",function:"interpolated","zoom-function":true,default:1,minimum:0,maximum:1,transition:true},"raster-saturation":{type:"number",default:0,minimum:-1,maximum:1,function:"interpolated","zoom-function":true,transition:true},"raster-contrast":{type:"number",default:0,minimum:-1,maximum:1,function:"interpolated","zoom-function":true,transition:true},"raster-fade-duration":{type:"number",default:300,minimum:0,function:"interpolated","zoom-function":true,transition:true,units:"milliseconds"}},paint_background:{"background-color":{type:"color",default:"#000000",function:"interpolated","zoom-function":true,transition:true,requires:[{"!":"background-pattern"}]},"background-pattern":{type:"string",function:"piecewise-constant","zoom-function":true,transition:true},"background-opacity":{type:"number",default:1,minimum:0,maximum:1,function:"interpolated","zoom-function":true,transition:true}},transition:{duration:{type:"number",default:300,minimum:0,units:"milliseconds"},delay:{type:"number",default:0,minimum:0,units:"milliseconds"}}}},{}],192:[function(require,module,exports){"use strict";if(typeof module!=="undefined"&&module.exports){module.exports=isSupported}else if(window){window.mapboxgl=window.mapboxgl||{};window.mapboxgl.supported=isSupported}function isSupported(options){return!!(isBrowser()&&isArraySupported()&&isFunctionSupported()&&isObjectSupported()&&isJSONSupported()&&isWorkerSupported()&&isUint8ClampedArraySupported()&&isWebGLSupportedCached(options&&options.failIfMajorPerformanceCaveat))}function isBrowser(){return typeof window!=="undefined"&&typeof document!=="undefined"}function isArraySupported(){return Array.prototype&&Array.prototype.every&&Array.prototype.filter&&Array.prototype.forEach&&Array.prototype.indexOf&&Array.prototype.lastIndexOf&&Array.prototype.map&&Array.prototype.some&&Array.prototype.reduce&&Array.prototype.reduceRight&&Array.isArray}function isFunctionSupported(){return Function.prototype&&Function.prototype.bind}function isObjectSupported(){return Object.keys&&Object.create&&Object.getPrototypeOf&&Object.getOwnPropertyNames&&Object.isSealed&&Object.isFrozen&&Object.isExtensible&&Object.getOwnPropertyDescriptor&&Object.defineProperty&&Object.defineProperties&&Object.seal&&Object.freeze&&Object.preventExtensions}function isJSONSupported(){return"JSON"in window&&"parse"in JSON&&"stringify"in JSON}function isWorkerSupported(){return"Worker"in window}function isUint8ClampedArraySupported(){return"Uint8ClampedArray"in window}var isWebGLSupportedCache={};function isWebGLSupportedCached(failIfMajorPerformanceCaveat){if(isWebGLSupportedCache[failIfMajorPerformanceCaveat]===undefined){isWebGLSupportedCache[failIfMajorPerformanceCaveat]=isWebGLSupported(failIfMajorPerformanceCaveat)}return isWebGLSupportedCache[failIfMajorPerformanceCaveat]}isSupported.webGLContextAttributes={antialias:false,alpha:true,stencil:true,depth:true};function isWebGLSupported(failIfMajorPerformanceCaveat){var canvas=document.createElement("canvas");var attributes=Object.create(isSupported.webGLContextAttributes);attributes.failIfMajorPerformanceCaveat=failIfMajorPerformanceCaveat;if(canvas.probablySupportsContext){return canvas.probablySupportsContext("webgl",attributes)||canvas.probablySupportsContext("experimental-webgl",attributes)}else if(canvas.supportsContext){return canvas.supportsContext("webgl",attributes)||canvas.supportsContext("experimental-webgl",attributes)}else{return canvas.getContext("webgl",attributes)||canvas.getContext("experimental-webgl",attributes)}}},{}],193:[function(require,module,exports){"use strict";module.exports=Buffer;var ieee754=require("ieee754");var BufferMethods;function Buffer(length){var arr;if(length&&length.length){arr=length;length=arr.length}var buf=new Uint8Array(length||0);if(arr)buf.set(arr);buf.readUInt32LE=BufferMethods.readUInt32LE;buf.writeUInt32LE=BufferMethods.writeUInt32LE;buf.readInt32LE=BufferMethods.readInt32LE;buf.writeInt32LE=BufferMethods.writeInt32LE;buf.readFloatLE=BufferMethods.readFloatLE;buf.writeFloatLE=BufferMethods.writeFloatLE;buf.readDoubleLE=BufferMethods.readDoubleLE;buf.writeDoubleLE=BufferMethods.writeDoubleLE;buf.toString=BufferMethods.toString;buf.write=BufferMethods.write;buf.slice=BufferMethods.slice;buf.copy=BufferMethods.copy;buf._isBuffer=true;return buf}var lastStr,lastStrEncoded;BufferMethods={readUInt32LE:function(pos){return(this[pos]|this[pos+1]<<8|this[pos+2]<<16)+this[pos+3]*16777216},writeUInt32LE:function(val,pos){this[pos]=val;this[pos+1]=val>>>8;this[pos+2]=val>>>16;this[pos+3]=val>>>24},readInt32LE:function(pos){return(this[pos]|this[pos+1]<<8|this[pos+2]<<16)+(this[pos+3]<<24)},readFloatLE:function(pos){return ieee754.read(this,pos,true,23,4)},readDoubleLE:function(pos){return ieee754.read(this,pos,true,52,8)},writeFloatLE:function(val,pos){return ieee754.write(this,val,pos,true,23,4)},writeDoubleLE:function(val,pos){return ieee754.write(this,val,pos,true,52,8)},toString:function(encoding,start,end){var str="",tmp="";start=start||0;end=Math.min(this.length,end||this.length);for(var i=start;i<end;i++){var ch=this[i];if(ch<=127){str+=decodeURIComponent(tmp)+String.fromCharCode(ch);tmp=""}else{tmp+="%"+ch.toString(16)}}str+=decodeURIComponent(tmp);return str},write:function(str,pos){var bytes=str===lastStr?lastStrEncoded:encodeString(str);for(var i=0;i<bytes.length;i++){this[pos+i]=bytes[i]}},slice:function(start,end){return this.subarray(start,end)},copy:function(buf,pos){pos=pos||0;for(var i=0;i<this.length;i++){buf[pos+i]=this[i]}}};BufferMethods.writeInt32LE=BufferMethods.writeUInt32LE;Buffer.byteLength=function(str){lastStr=str;lastStrEncoded=encodeString(str);return lastStrEncoded.length};Buffer.isBuffer=function(buf){return!!(buf&&buf._isBuffer)};function encodeString(str){var length=str.length,bytes=[];for(var i=0,c,lead;i<length;i++){c=str.charCodeAt(i);if(c>55295&&c<57344){if(lead){if(c<56320){bytes.push(239,191,189);lead=c;continue}else{c=lead-55296<<10|c-56320|65536;lead=null}}else{if(c>56319||i+1===length)bytes.push(239,191,189);else lead=c;continue}}else if(lead){bytes.push(239,191,189);lead=null}if(c<128)bytes.push(c);else if(c<2048)bytes.push(c>>6|192,c&63|128);else if(c<65536)bytes.push(c>>12|224,c>>6&63|128,c&63|128);else bytes.push(c>>18|240,c>>12&63|128,c>>6&63|128,c&63|128)}return bytes}},{ieee754:195}],194:[function(require,module,exports){(function(global){"use strict";module.exports=Pbf;var Buffer=global.Buffer||require("./buffer");function Pbf(buf){this.buf=!Buffer.isBuffer(buf)?new Buffer(buf||0):buf;this.pos=0;this.length=this.buf.length}Pbf.Varint=0;Pbf.Fixed64=1;Pbf.Bytes=2;Pbf.Fixed32=5;var SHIFT_LEFT_32=(1<<16)*(1<<16),SHIFT_RIGHT_32=1/SHIFT_LEFT_32,POW_2_63=Math.pow(2,63);Pbf.prototype={destroy:function(){this.buf=null},readFields:function(readField,result,end){end=end||this.length;while(this.pos<end){var val=this.readVarint(),tag=val>>3,startPos=this.pos;readField(tag,result,this);if(this.pos===startPos)this.skip(val)}return result},readMessage:function(readField,result){return this.readFields(readField,result,this.readVarint()+this.pos)},readFixed32:function(){var val=this.buf.readUInt32LE(this.pos);this.pos+=4;return val},readSFixed32:function(){var val=this.buf.readInt32LE(this.pos);this.pos+=4;return val},readFixed64:function(){var val=this.buf.readUInt32LE(this.pos)+this.buf.readUInt32LE(this.pos+4)*SHIFT_LEFT_32;this.pos+=8;return val},readSFixed64:function(){var val=this.buf.readUInt32LE(this.pos)+this.buf.readInt32LE(this.pos+4)*SHIFT_LEFT_32;this.pos+=8;return val},readFloat:function(){var val=this.buf.readFloatLE(this.pos);this.pos+=4;return val},readDouble:function(){var val=this.buf.readDoubleLE(this.pos);this.pos+=8;return val},readVarint:function(){var buf=this.buf,val,b;b=buf[this.pos++];val=b&127;if(b<128)return val;b=buf[this.pos++];val|=(b&127)<<7;if(b<128)return val;b=buf[this.pos++];val|=(b&127)<<14;if(b<128)return val;b=buf[this.pos++];val|=(b&127)<<21;if(b<128)return val;return readVarintRemainder(val,this)},readVarint64:function(){var startPos=this.pos,val=this.readVarint();if(val<POW_2_63)return val;var pos=this.pos-2;while(this.buf[pos]===255)pos--;if(pos<startPos)pos=startPos;val=0;for(var i=0;i<pos-startPos+1;i++){var b=~this.buf[startPos+i]&127;val+=i<4?b<<i*7:b*Math.pow(2,i*7)}return-val-1},readSVarint:function(){var num=this.readVarint();return num%2===1?(num+1)/-2:num/2},readBoolean:function(){return Boolean(this.readVarint())},readString:function(){var end=this.readVarint()+this.pos,str=this.buf.toString("utf8",this.pos,end);this.pos=end;return str},readBytes:function(){var end=this.readVarint()+this.pos,buffer=this.buf.slice(this.pos,end);this.pos=end;return buffer},readPackedVarint:function(){var end=this.readVarint()+this.pos,arr=[];while(this.pos<end)arr.push(this.readVarint());return arr},readPackedSVarint:function(){var end=this.readVarint()+this.pos,arr=[];while(this.pos<end)arr.push(this.readSVarint());return arr},readPackedBoolean:function(){var end=this.readVarint()+this.pos,arr=[];while(this.pos<end)arr.push(this.readBoolean());return arr},readPackedFloat:function(){var end=this.readVarint()+this.pos,arr=[];while(this.pos<end)arr.push(this.readFloat());return arr},readPackedDouble:function(){var end=this.readVarint()+this.pos,arr=[];while(this.pos<end)arr.push(this.readDouble());return arr},readPackedFixed32:function(){var end=this.readVarint()+this.pos,arr=[];while(this.pos<end)arr.push(this.readFixed32());return arr},readPackedSFixed32:function(){var end=this.readVarint()+this.pos,arr=[];while(this.pos<end)arr.push(this.readSFixed32());return arr},readPackedFixed64:function(){var end=this.readVarint()+this.pos,arr=[];while(this.pos<end)arr.push(this.readFixed64());return arr},readPackedSFixed64:function(){var end=this.readVarint()+this.pos,arr=[];while(this.pos<end)arr.push(this.readSFixed64());return arr},skip:function(val){var type=val&7;if(type===Pbf.Varint)while(this.buf[this.pos++]>127){}else if(type===Pbf.Bytes)this.pos=this.readVarint()+this.pos;else if(type===Pbf.Fixed32)this.pos+=4;else if(type===Pbf.Fixed64)this.pos+=8;else throw new Error("Unimplemented type: "+type)},writeTag:function(tag,type){this.writeVarint(tag<<3|type)},realloc:function(min){var length=this.length||16;while(length<this.pos+min)length*=2;if(length!==this.length){var buf=new Buffer(length);this.buf.copy(buf);this.buf=buf;this.length=length}},finish:function(){this.length=this.pos;this.pos=0;return this.buf.slice(0,this.length)},writeFixed32:function(val){this.realloc(4);this.buf.writeUInt32LE(val,this.pos);this.pos+=4},writeSFixed32:function(val){this.realloc(4);this.buf.writeInt32LE(val,this.pos);this.pos+=4},writeFixed64:function(val){this.realloc(8);this.buf.writeInt32LE(val&-1,this.pos);this.buf.writeUInt32LE(Math.floor(val*SHIFT_RIGHT_32),this.pos+4);this.pos+=8},writeSFixed64:function(val){this.realloc(8);this.buf.writeInt32LE(val&-1,this.pos);this.buf.writeInt32LE(Math.floor(val*SHIFT_RIGHT_32),this.pos+4);this.pos+=8},writeVarint:function(val){val=+val;if(val>268435455){writeBigVarint(val,this);return}this.realloc(4);this.buf[this.pos++]=val&127|(val>127?128:0);if(val<=127)return;this.buf[this.pos++]=(val>>>=7)&127|(val>127?128:0);if(val<=127)return;this.buf[this.pos++]=(val>>>=7)&127|(val>127?128:0);if(val<=127)return;this.buf[this.pos++]=val>>>7&127},writeSVarint:function(val){this.writeVarint(val<0?-val*2-1:val*2)},writeBoolean:function(val){this.writeVarint(Boolean(val))},writeString:function(str){str=String(str);var bytes=Buffer.byteLength(str);this.writeVarint(bytes);this.realloc(bytes);this.buf.write(str,this.pos);this.pos+=bytes},writeFloat:function(val){this.realloc(4);this.buf.writeFloatLE(val,this.pos);this.pos+=4},writeDouble:function(val){this.realloc(8);this.buf.writeDoubleLE(val,this.pos);this.pos+=8},writeBytes:function(buffer){var len=buffer.length;this.writeVarint(len);this.realloc(len);for(var i=0;i<len;i++)this.buf[this.pos++]=buffer[i]},writeRawMessage:function(fn,obj){this.pos++;var startPos=this.pos;fn(obj,this);var len=this.pos-startPos;if(len>=128)reallocForRawMessage(startPos,len,this);this.pos=startPos-1;this.writeVarint(len);this.pos+=len},writeMessage:function(tag,fn,obj){this.writeTag(tag,Pbf.Bytes);this.writeRawMessage(fn,obj)},writePackedVarint:function(tag,arr){this.writeMessage(tag,writePackedVarint,arr)},writePackedSVarint:function(tag,arr){this.writeMessage(tag,writePackedSVarint,arr)},writePackedBoolean:function(tag,arr){this.writeMessage(tag,writePackedBoolean,arr)},writePackedFloat:function(tag,arr){this.writeMessage(tag,writePackedFloat,arr)},writePackedDouble:function(tag,arr){this.writeMessage(tag,writePackedDouble,arr)},writePackedFixed32:function(tag,arr){this.writeMessage(tag,writePackedFixed32,arr)},writePackedSFixed32:function(tag,arr){this.writeMessage(tag,writePackedSFixed32,arr)},writePackedFixed64:function(tag,arr){this.writeMessage(tag,writePackedFixed64,arr)},writePackedSFixed64:function(tag,arr){this.writeMessage(tag,writePackedSFixed64,arr)},writeBytesField:function(tag,buffer){this.writeTag(tag,Pbf.Bytes);this.writeBytes(buffer)},writeFixed32Field:function(tag,val){this.writeTag(tag,Pbf.Fixed32);this.writeFixed32(val)},writeSFixed32Field:function(tag,val){this.writeTag(tag,Pbf.Fixed32);this.writeSFixed32(val)},writeFixed64Field:function(tag,val){this.writeTag(tag,Pbf.Fixed64);this.writeFixed64(val)},writeSFixed64Field:function(tag,val){this.writeTag(tag,Pbf.Fixed64);this.writeSFixed64(val)},writeVarintField:function(tag,val){this.writeTag(tag,Pbf.Varint);this.writeVarint(val)},writeSVarintField:function(tag,val){this.writeTag(tag,Pbf.Varint);this.writeSVarint(val)},writeStringField:function(tag,str){this.writeTag(tag,Pbf.Bytes);this.writeString(str)},writeFloatField:function(tag,val){this.writeTag(tag,Pbf.Fixed32);this.writeFloat(val)},writeDoubleField:function(tag,val){this.writeTag(tag,Pbf.Fixed64);this.writeDouble(val)},writeBooleanField:function(tag,val){this.writeVarintField(tag,Boolean(val))}};function readVarintRemainder(val,pbf){var buf=pbf.buf,b;b=buf[pbf.pos++];val+=(b&127)*268435456;if(b<128)return val;b=buf[pbf.pos++];val+=(b&127)*34359738368;if(b<128)return val;b=buf[pbf.pos++];val+=(b&127)*4398046511104;if(b<128)return val;b=buf[pbf.pos++];val+=(b&127)*562949953421312;if(b<128)return val;b=buf[pbf.pos++];val+=(b&127)*72057594037927940;if(b<128)return val;b=buf[pbf.pos++];val+=(b&127)*0x8000000000000000;if(b<128)return val;throw new Error("Expected varint not more than 10 bytes")}function writeBigVarint(val,pbf){pbf.realloc(10);var maxPos=pbf.pos+10;while(val>=1){if(pbf.pos>=maxPos)throw new Error("Given varint doesn't fit into 10 bytes");var b=val&255;pbf.buf[pbf.pos++]=b|(val>=128?128:0);val/=128}}function reallocForRawMessage(startPos,len,pbf){var extraLen=len<=16383?1:len<=2097151?2:len<=268435455?3:Math.ceil(Math.log(len)/(Math.LN2*7));pbf.realloc(extraLen);for(var i=pbf.pos-1;i>=startPos;i--)pbf.buf[i+extraLen]=pbf.buf[i]}function writePackedVarint(arr,pbf){for(var i=0;i<arr.length;i++)pbf.writeVarint(arr[i])}function writePackedSVarint(arr,pbf){for(var i=0;i<arr.length;i++)pbf.writeSVarint(arr[i])}function writePackedFloat(arr,pbf){for(var i=0;i<arr.length;i++)pbf.writeFloat(arr[i])}function writePackedDouble(arr,pbf){for(var i=0;i<arr.length;i++)pbf.writeDouble(arr[i])}function writePackedBoolean(arr,pbf){for(var i=0;i<arr.length;i++)pbf.writeBoolean(arr[i])}function writePackedFixed32(arr,pbf){for(var i=0;i<arr.length;i++)pbf.writeFixed32(arr[i])}function writePackedSFixed32(arr,pbf){for(var i=0;i<arr.length;i++)pbf.writeSFixed32(arr[i])}function writePackedFixed64(arr,pbf){for(var i=0;i<arr.length;i++)pbf.writeFixed64(arr[i])}function writePackedSFixed64(arr,pbf){for(var i=0;i<arr.length;i++)pbf.writeSFixed64(arr[i])}}).call(this,typeof global!=="undefined"?global:typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./buffer":193}],195:[function(require,module,exports){exports.read=function(buffer,offset,isLE,mLen,nBytes){var e,m;var eLen=nBytes*8-mLen-1;var eMax=(1<<eLen)-1;var eBias=eMax>>1;var nBits=-7;var i=isLE?nBytes-1:0;var d=isLE?-1:1;var s=buffer[offset+i];i+=d;e=s&(1<<-nBits)-1;s>>=-nBits;nBits+=eLen;for(;nBits>0;e=e*256+buffer[offset+i],i+=d,nBits-=8){}m=e&(1<<-nBits)-1;e>>=-nBits;nBits+=mLen;for(;nBits>0;m=m*256+buffer[offset+i],i+=d,nBits-=8){}if(e===0){e=1-eBias}else if(e===eMax){return m?NaN:(s?-1:1)*Infinity}else{m=m+Math.pow(2,mLen);e=e-eBias}return(s?-1:1)*m*Math.pow(2,e-mLen)};exports.write=function(buffer,value,offset,isLE,mLen,nBytes){var e,m,c;var eLen=nBytes*8-mLen-1;var eMax=(1<<eLen)-1;var eBias=eMax>>1;var rt=mLen===23?Math.pow(2,-24)-Math.pow(2,-77):0;var i=isLE?0:nBytes-1;var d=isLE?1:-1;var s=value<0||value===0&&1/value<0?1:0;value=Math.abs(value);if(isNaN(value)||value===Infinity){m=isNaN(value)?1:0;e=eMax}else{e=Math.floor(Math.log(value)/Math.LN2);if(value*(c=Math.pow(2,-e))<1){e--;c*=2}if(e+eBias>=1){value+=rt/c}else{value+=rt*Math.pow(2,1-eBias)}if(value*c>=2){e++;c/=2}if(e+eBias>=eMax){m=0;e=eMax}else if(e+eBias>=1){m=(value*c-1)*Math.pow(2,mLen);e=e+eBias}else{m=value*Math.pow(2,eBias-1)*Math.pow(2,mLen);e=0}}for(;mLen>=8;buffer[offset+i]=m&255,i+=d,m/=256,mLen-=8){}e=e<<mLen|m;eLen+=mLen;for(;eLen>0;buffer[offset+i]=e&255,i+=d,e/=256,eLen-=8){}buffer[offset+i-d]|=s*128}},{}],196:[function(require,module,exports){"use strict";module.exports=Point;function Point(x,y){this.x=x;this.y=y}Point.prototype={clone:function(){return new Point(this.x,this.y)},add:function(p){return this.clone()._add(p)},sub:function(p){return this.clone()._sub(p)},mult:function(k){return this.clone()._mult(k)},div:function(k){return this.clone()._div(k)},rotate:function(a){return this.clone()._rotate(a)},matMult:function(m){return this.clone()._matMult(m)},unit:function(){return this.clone()._unit()},perp:function(){return this.clone()._perp()},round:function(){return this.clone()._round()},mag:function(){return Math.sqrt(this.x*this.x+this.y*this.y)},equals:function(p){return this.x===p.x&&this.y===p.y},dist:function(p){return Math.sqrt(this.distSqr(p))},distSqr:function(p){var dx=p.x-this.x,dy=p.y-this.y;return dx*dx+dy*dy},angle:function(){return Math.atan2(this.y,this.x)},angleTo:function(b){return Math.atan2(this.y-b.y,this.x-b.x)},angleWith:function(b){return this.angleWithSep(b.x,b.y)},angleWithSep:function(x,y){return Math.atan2(this.x*y-this.y*x,this.x*x+this.y*y)},_matMult:function(m){var x=m[0]*this.x+m[1]*this.y,y=m[2]*this.x+m[3]*this.y;this.x=x;this.y=y;return this},_add:function(p){this.x+=p.x;this.y+=p.y;return this},_sub:function(p){this.x-=p.x;this.y-=p.y;return this},_mult:function(k){this.x*=k;this.y*=k;return this},_div:function(k){this.x/=k;this.y/=k;return this},_unit:function(){this._div(this.mag());return this},_perp:function(){var y=this.y;this.y=this.x;this.x=-y;return this},_rotate:function(angle){var cos=Math.cos(angle),sin=Math.sin(angle),x=cos*this.x-sin*this.y,y=sin*this.x+cos*this.y;this.x=x;this.y=y;return this},_round:function(){this.x=Math.round(this.x);this.y=Math.round(this.y);return this}};Point.convert=function(a){if(a instanceof Point){return a}if(Array.isArray(a)){return new Point(a[0],a[1])}return a}},{}],197:[function(require,module,exports){"use strict";module.exports=partialSort;function partialSort(arr,k,left,right,compare){left=left||0;right=right||arr.length-1;compare=compare||defaultCompare;while(right>left){
if(right-left>600){var n=right-left+1;var m=k-left+1;var z=Math.log(n);var s=.5*Math.exp(2*z/3);var sd=.5*Math.sqrt(z*s*(n-s)/n)*(m-n/2<0?-1:1);var newLeft=Math.max(left,Math.floor(k-m*s/n+sd));var newRight=Math.min(right,Math.floor(k+(n-m)*s/n+sd));partialSort(arr,k,newLeft,newRight,compare)}var t=arr[k];var i=left;var j=right;swap(arr,left,k);if(compare(arr[right],t)>0)swap(arr,left,right);while(i<j){swap(arr,i,j);i++;j--;while(compare(arr[i],t)<0)i++;while(compare(arr[j],t)>0)j--}if(compare(arr[left],t)===0)swap(arr,left,j);else{j++;swap(arr,j,right)}if(j<=k)left=j+1;if(k<=j)right=j-1}}function swap(arr,i,j){var tmp=arr[i];arr[i]=arr[j];arr[j]=tmp}function defaultCompare(a,b){return a<b?-1:a>b?1:0}},{}],198:[function(require,module,exports){(function(global,factory){typeof exports==="object"&&typeof module!=="undefined"?module.exports=factory():typeof define==="function"&&define.amd?define(factory):global.ShelfPack=factory()})(this,function(){function ShelfPack(w,h,options){options=options||{};this.w=w||64;this.h=h||64;this.autoResize=!!options.autoResize;this.shelves=[];this.stats={};this.count=function(h){this.stats[h]=(this.stats[h]|0)+1}}ShelfPack.prototype.pack=function(bins,options){bins=[].concat(bins);options=options||{};var results=[],w,h,allocation;for(var i=0;i<bins.length;i++){w=bins[i].w||bins[i].width;h=bins[i].h||bins[i].height;if(w&&h){allocation=this.packOne(w,h);if(!allocation){continue}if(options.inPlace){bins[i].x=allocation.x;bins[i].y=allocation.y}results.push(allocation)}}if(this.shelves.length>0){var w2=0;var h2=0;for(var j=0;j<this.shelves.length;j++){var shelf=this.shelves[j];h2+=shelf.h;w2=Math.max(shelf.w-shelf.free,w2)}this.resize(w2,h2)}return results};ShelfPack.prototype.packOne=function(w,h){var y=0,best={shelf:-1,waste:Infinity},shelf,waste;for(var i=0;i<this.shelves.length;i++){shelf=this.shelves[i];y+=shelf.h;if(h===shelf.h&&w<=shelf.free){this.count(h);return shelf.alloc(w,h)}if(h>shelf.h||w>shelf.free){continue}if(h<shelf.h&&w<=shelf.free){waste=shelf.h-h;if(waste<best.waste){best.waste=waste;best.shelf=i}}}if(best.shelf!==-1){shelf=this.shelves[best.shelf];this.count(h);return shelf.alloc(w,h)}if(h<=this.h-y&&w<=this.w){shelf=new Shelf(y,this.w,h);this.shelves.push(shelf);this.count(h);return shelf.alloc(w,h)}if(this.autoResize){var h1,h2,w1,w2;h1=h2=this.h;w1=w2=this.w;if(w1<=h1||w>w1){w2=Math.max(w,w1)*2}if(h1<w1||h>h1){h2=Math.max(h,h1)*2}this.resize(w2,h2);return this.packOne(w,h)}return null};ShelfPack.prototype.clear=function(){this.shelves=[];this.stats={}};ShelfPack.prototype.resize=function(w,h){this.w=w;this.h=h;for(var i=0;i<this.shelves.length;i++){this.shelves[i].resize(w)}return true};function Shelf(y,w,h){this.x=0;this.y=y;this.w=this.free=w;this.h=h}Shelf.prototype.alloc=function(w,h){if(w>this.free||h>this.h){return null}var x=this.x;this.x+=w;this.free-=w;return{x:x,y:this.y,w:w,h:h,width:w,height:h}};Shelf.prototype.resize=function(w){this.free+=w-this.w;this.w=w;return true};return ShelfPack})},{}],199:[function(require,module,exports){"use strict";var kdbush=require("kdbush");module.exports=supercluster;function supercluster(options){return new SuperCluster(options)}function SuperCluster(options){this.options=extend(Object.create(this.options),options);this.trees=new Array(this.options.maxZoom+1)}SuperCluster.prototype={options:{minZoom:0,maxZoom:16,radius:40,extent:512,nodeSize:64,log:false},load:function(points){var log=this.options.log;if(log)console.time("total time");var timerId="prepare "+points.length+" points";if(log)console.time(timerId);this.points=points;var clusters=points.map(createPointCluster);if(log)console.timeEnd(timerId);for(var z=this.options.maxZoom;z>=this.options.minZoom;z--){var now=+Date.now();this.trees[z+1]=kdbush(clusters,getX,getY,this.options.nodeSize,Float32Array);clusters=this._cluster(clusters,z);if(log)console.log("z%d: %d clusters in %dms",z,clusters.length,+Date.now()-now)}this.trees[this.options.minZoom]=kdbush(clusters,getX,getY,this.options.nodeSize,Float32Array);if(log)console.timeEnd("total time");return this},getClusters:function(bbox,zoom){var tree=this.trees[this._limitZoom(zoom)];var ids=tree.range(lngX(bbox[0]),latY(bbox[3]),lngX(bbox[2]),latY(bbox[1]));var clusters=[];for(var i=0;i<ids.length;i++){var c=tree.points[ids[i]];clusters.push(c.id!==-1?this.points[c.id]:getClusterJSON(c))}return clusters},getTile:function(z,x,y){var tree=this.trees[this._limitZoom(z)];var z2=Math.pow(2,z);var extent=this.options.extent;var r=this.options.radius;var p=r/extent;var top=(y-p)/z2;var bottom=(y+1+p)/z2;var tile={features:[]};this._addTileFeatures(tree.range((x-p)/z2,top,(x+1+p)/z2,bottom),tree.points,x,y,z2,tile);if(x===0){this._addTileFeatures(tree.range(1-p/z2,top,1,bottom),tree.points,z2,y,z2,tile)}if(x===z2-1){this._addTileFeatures(tree.range(0,top,p/z2,bottom),tree.points,-1,y,z2,tile)}return tile.features.length?tile:null},_addTileFeatures:function(ids,points,x,y,z2,tile){for(var i=0;i<ids.length;i++){var c=points[ids[i]];tile.features.push({type:1,geometry:[[Math.round(this.options.extent*(c.x*z2-x)),Math.round(this.options.extent*(c.y*z2-y))]],tags:c.id!==-1?this.points[c.id].properties:getClusterProperties(c)})}},_limitZoom:function(z){return Math.max(this.options.minZoom,Math.min(z,this.options.maxZoom+1))},_cluster:function(points,zoom){var clusters=[];var r=this.options.radius/(this.options.extent*Math.pow(2,zoom));for(var i=0;i<points.length;i++){var p=points[i];if(p.zoom<=zoom)continue;p.zoom=zoom;var tree=this.trees[zoom+1];var neighborIds=tree.within(p.x,p.y,r);var foundNeighbors=false;var numPoints=p.numPoints;var wx=p.x*numPoints;var wy=p.y*numPoints;for(var j=0;j<neighborIds.length;j++){var b=tree.points[neighborIds[j]];if(zoom<b.zoom){foundNeighbors=true;b.zoom=zoom;wx+=b.x*b.numPoints;wy+=b.y*b.numPoints;numPoints+=b.numPoints}}clusters.push(foundNeighbors?createCluster(wx/numPoints,wy/numPoints,numPoints,-1):p)}return clusters}};function createCluster(x,y,numPoints,id){return{x:x,y:y,zoom:Infinity,id:id,numPoints:numPoints}}function createPointCluster(p,i){var coords=p.geometry.coordinates;return createCluster(lngX(coords[0]),latY(coords[1]),1,i)}function getClusterJSON(cluster){return{type:"Feature",properties:getClusterProperties(cluster),geometry:{type:"Point",coordinates:[xLng(cluster.x),yLat(cluster.y)]}}}function getClusterProperties(cluster){var count=cluster.numPoints;var abbrev=count>=1e4?Math.round(count/1e3)+"k":count>=1e3?Math.round(count/100)/10+"k":count;return{cluster:true,point_count:count,point_count_abbreviated:abbrev}}function lngX(lng){return lng/360+.5}function latY(lat){var sin=Math.sin(lat*Math.PI/180),y=.5-.25*Math.log((1+sin)/(1-sin))/Math.PI;return y<0?0:y>1?1:y}function xLng(x){return(x-.5)*360}function yLat(y){var y2=(180-y*360)*Math.PI/180;return 360*Math.atan(Math.exp(y2))/Math.PI-90}function extend(dest,src){for(var id in src)dest[id]=src[id];return dest}function getX(p){return p.x}function getY(p){return p.y}},{kdbush:200}],200:[function(require,module,exports){"use strict";var sort=require("./sort");var range=require("./range");var within=require("./within");module.exports=kdbush;function kdbush(points,getX,getY,nodeSize,ArrayType){return new KDBush(points,getX,getY,nodeSize,ArrayType)}function KDBush(points,getX,getY,nodeSize,ArrayType){getX=getX||defaultGetX;getY=getY||defaultGetY;ArrayType=ArrayType||Array;this.nodeSize=nodeSize||64;this.points=points;this.ids=new ArrayType(points.length);this.coords=new ArrayType(points.length*2);for(var i=0;i<points.length;i++){this.ids[i]=i;this.coords[2*i]=getX(points[i]);this.coords[2*i+1]=getY(points[i])}sort(this.ids,this.coords,this.nodeSize,0,this.ids.length-1,0)}KDBush.prototype={range:function(minX,minY,maxX,maxY){return range(this.ids,this.coords,minX,minY,maxX,maxY,this.nodeSize)},within:function(x,y,r){return within(this.ids,this.coords,x,y,r,this.nodeSize)}};function defaultGetX(p){return p[0]}function defaultGetY(p){return p[1]}},{"./range":201,"./sort":202,"./within":203}],201:[function(require,module,exports){"use strict";module.exports=range;function range(ids,coords,minX,minY,maxX,maxY,nodeSize){var stack=[0,ids.length-1,0];var result=[];var x,y;while(stack.length){var axis=stack.pop();var right=stack.pop();var left=stack.pop();if(right-left<=nodeSize){for(var i=left;i<=right;i++){x=coords[2*i];y=coords[2*i+1];if(x>=minX&&x<=maxX&&y>=minY&&y<=maxY)result.push(ids[i])}continue}var m=Math.floor((left+right)/2);x=coords[2*m];y=coords[2*m+1];if(x>=minX&&x<=maxX&&y>=minY&&y<=maxY)result.push(ids[m]);var nextAxis=(axis+1)%2;if(axis===0?minX<=x:minY<=y){stack.push(left);stack.push(m-1);stack.push(nextAxis)}if(axis===0?maxX>=x:maxY>=y){stack.push(m+1);stack.push(right);stack.push(nextAxis)}}return result}},{}],202:[function(require,module,exports){"use strict";module.exports=sortKD;function sortKD(ids,coords,nodeSize,left,right,depth){if(right-left<=nodeSize)return;var m=Math.floor((left+right)/2);select(ids,coords,m,left,right,depth%2);sortKD(ids,coords,nodeSize,left,m-1,depth+1);sortKD(ids,coords,nodeSize,m+1,right,depth+1)}function select(ids,coords,k,left,right,inc){while(right>left){if(right-left>600){var n=right-left+1;var m=k-left+1;var z=Math.log(n);var s=.5*Math.exp(2*z/3);var sd=.5*Math.sqrt(z*s*(n-s)/n)*(m-n/2<0?-1:1);var newLeft=Math.max(left,Math.floor(k-m*s/n+sd));var newRight=Math.min(right,Math.floor(k+(n-m)*s/n+sd));select(ids,coords,k,newLeft,newRight,inc)}var t=coords[2*k+inc];var i=left;var j=right;swapItem(ids,coords,left,k);if(coords[2*right+inc]>t)swapItem(ids,coords,left,right);while(i<j){swapItem(ids,coords,i,j);i++;j--;while(coords[2*i+inc]<t)i++;while(coords[2*j+inc]>t)j--}if(coords[2*left+inc]===t)swapItem(ids,coords,left,j);else{j++;swapItem(ids,coords,j,right)}if(j<=k)left=j+1;if(k<=j)right=j-1}}function swapItem(ids,coords,i,j){swap(ids,i,j);swap(coords,2*i,2*j);swap(coords,2*i+1,2*j+1)}function swap(arr,i,j){var tmp=arr[i];arr[i]=arr[j];arr[j]=tmp}},{}],203:[function(require,module,exports){"use strict";module.exports=within;function within(ids,coords,qx,qy,r,nodeSize){var stack=[0,ids.length-1,0];var result=[];var r2=r*r;while(stack.length){var axis=stack.pop();var right=stack.pop();var left=stack.pop();if(right-left<=nodeSize){for(var i=left;i<=right;i++){if(sqDist(coords[2*i],coords[2*i+1],qx,qy)<=r2)result.push(ids[i])}continue}var m=Math.floor((left+right)/2);var x=coords[2*m];var y=coords[2*m+1];if(sqDist(x,y,qx,qy)<=r2)result.push(ids[m]);var nextAxis=(axis+1)%2;if(axis===0?qx-r<=x:qy-r<=y){stack.push(left);stack.push(m-1);stack.push(nextAxis)}if(axis===0?qx+r>=x:qy+r>=y){stack.push(m+1);stack.push(right);stack.push(nextAxis)}}return result}function sqDist(ax,ay,bx,by){var dx=ax-bx;var dy=ay-by;return dx*dx+dy*dy}},{}],204:[function(require,module,exports){"use strict";module.exports=TinyQueue;function TinyQueue(data,compare){if(!(this instanceof TinyQueue))return new TinyQueue(data,compare);this.data=data||[];this.length=this.data.length;this.compare=compare||defaultCompare;if(data)for(var i=Math.floor(this.length/2);i>=0;i--)this._down(i)}function defaultCompare(a,b){return a<b?-1:a>b?1:0}TinyQueue.prototype={push:function(item){this.data.push(item);this.length++;this._up(this.length-1)},pop:function(){var top=this.data[0];this.data[0]=this.data[this.length-1];this.length--;this.data.pop();this._down(0);return top},peek:function(){return this.data[0]},_up:function(pos){var data=this.data,compare=this.compare;while(pos>0){var parent=Math.floor((pos-1)/2);if(compare(data[pos],data[parent])<0){swap(data,parent,pos);pos=parent}else break}},_down:function(pos){var data=this.data,compare=this.compare,len=this.length;while(true){var left=2*pos+1,right=left+1,min=pos;if(left<len&&compare(data[left],data[min])<0)min=left;if(right<len&&compare(data[right],data[min])<0)min=right;if(min===pos)return;swap(data,min,pos);pos=min}}};function swap(data,i,j){var tmp=data[i];data[i]=data[j];data[j]=tmp}},{}],205:[function(require,module,exports){module.exports=UnitBezier;function UnitBezier(p1x,p1y,p2x,p2y){this.cx=3*p1x;this.bx=3*(p2x-p1x)-this.cx;this.ax=1-this.cx-this.bx;this.cy=3*p1y;this.by=3*(p2y-p1y)-this.cy;this.ay=1-this.cy-this.by;this.p1x=p1x;this.p1y=p2y;this.p2x=p2x;this.p2y=p2y}UnitBezier.prototype.sampleCurveX=function(t){return((this.ax*t+this.bx)*t+this.cx)*t};UnitBezier.prototype.sampleCurveY=function(t){return((this.ay*t+this.by)*t+this.cy)*t};UnitBezier.prototype.sampleCurveDerivativeX=function(t){return(3*this.ax*t+2*this.bx)*t+this.cx};UnitBezier.prototype.solveCurveX=function(x,epsilon){if(typeof epsilon==="undefined")epsilon=1e-6;var t0,t1,t2,x2,i;for(t2=x,i=0;i<8;i++){x2=this.sampleCurveX(t2)-x;if(Math.abs(x2)<epsilon)return t2;var d2=this.sampleCurveDerivativeX(t2);if(Math.abs(d2)<1e-6)break;t2=t2-x2/d2}t0=0;t1=1;t2=x;if(t2<t0)return t0;if(t2>t1)return t1;while(t0<t1){x2=this.sampleCurveX(t2);if(Math.abs(x2-x)<epsilon)return t2;if(x>x2){t0=t2}else{t1=t2}t2=(t1-t0)*.5+t0}return t2};UnitBezier.prototype.solve=function(x,epsilon){return this.sampleCurveY(this.solveCurveX(x,epsilon))}},{}],206:[function(require,module,exports){module.exports.VectorTile=require("./lib/vectortile.js");module.exports.VectorTileFeature=require("./lib/vectortilefeature.js");module.exports.VectorTileLayer=require("./lib/vectortilelayer.js")},{"./lib/vectortile.js":207,"./lib/vectortilefeature.js":208,"./lib/vectortilelayer.js":209}],207:[function(require,module,exports){"use strict";var VectorTileLayer=require("./vectortilelayer");module.exports=VectorTile;function VectorTile(pbf,end){this.layers=pbf.readFields(readTile,{},end)}function readTile(tag,layers,pbf){if(tag===3){var layer=new VectorTileLayer(pbf,pbf.readVarint()+pbf.pos);if(layer.length)layers[layer.name]=layer}}},{"./vectortilelayer":209}],208:[function(require,module,exports){"use strict";var Point=require("point-geometry");module.exports=VectorTileFeature;function VectorTileFeature(pbf,end,extent,keys,values){this.properties={};this.extent=extent;this.type=0;this._pbf=pbf;this._geometry=-1;this._keys=keys;this._values=values;pbf.readFields(readFeature,this,end)}function readFeature(tag,feature,pbf){if(tag==1)feature.id=pbf.readVarint();else if(tag==2)readTag(pbf,feature);else if(tag==3)feature.type=pbf.readVarint();else if(tag==4)feature._geometry=pbf.pos}function readTag(pbf,feature){var end=pbf.readVarint()+pbf.pos;while(pbf.pos<end){var key=feature._keys[pbf.readVarint()],value=feature._values[pbf.readVarint()];feature.properties[key]=value}}VectorTileFeature.types=["Unknown","Point","LineString","Polygon"];VectorTileFeature.prototype.loadGeometry=function(){var pbf=this._pbf;pbf.pos=this._geometry;var end=pbf.readVarint()+pbf.pos,cmd=1,length=0,x=0,y=0,lines=[],line;while(pbf.pos<end){if(!length){var cmdLen=pbf.readVarint();cmd=cmdLen&7;length=cmdLen>>3}length--;if(cmd===1||cmd===2){x+=pbf.readSVarint();y+=pbf.readSVarint();if(cmd===1){if(line)lines.push(line);line=[]}line.push(new Point(x,y))}else if(cmd===7){if(line){line.push(line[0].clone())}}else{throw new Error("unknown command "+cmd)}}if(line)lines.push(line);return lines};VectorTileFeature.prototype.bbox=function(){var pbf=this._pbf;pbf.pos=this._geometry;var end=pbf.readVarint()+pbf.pos,cmd=1,length=0,x=0,y=0,x1=Infinity,x2=-Infinity,y1=Infinity,y2=-Infinity;while(pbf.pos<end){if(!length){var cmdLen=pbf.readVarint();cmd=cmdLen&7;length=cmdLen>>3}length--;if(cmd===1||cmd===2){x+=pbf.readSVarint();y+=pbf.readSVarint();if(x<x1)x1=x;if(x>x2)x2=x;if(y<y1)y1=y;if(y>y2)y2=y}else if(cmd!==7){throw new Error("unknown command "+cmd)}}return[x1,y1,x2,y2]};VectorTileFeature.prototype.toGeoJSON=function(x,y,z){var size=this.extent*Math.pow(2,z),x0=this.extent*x,y0=this.extent*y,coords=this.loadGeometry(),type=VectorTileFeature.types[this.type],i,j;function project(line){for(var j=0;j<line.length;j++){var p=line[j],y2=180-(p.y+y0)*360/size;line[j]=[(p.x+x0)*360/size-180,360/Math.PI*Math.atan(Math.exp(y2*Math.PI/180))-90]}}switch(this.type){case 1:var points=[];for(i=0;i<coords.length;i++){points[i]=coords[i][0]}coords=points;project(coords);break;case 2:for(i=0;i<coords.length;i++){project(coords[i])}break;case 3:coords=classifyRings(coords);for(i=0;i<coords.length;i++){for(j=0;j<coords[i].length;j++){project(coords[i][j])}}break}if(coords.length===1){coords=coords[0]}else{type="Multi"+type}var result={type:"Feature",geometry:{type:type,coordinates:coords},properties:this.properties};if("id"in this){result.id=this.id}return result};function classifyRings(rings){var len=rings.length;if(len<=1)return[rings];var polygons=[],polygon,ccw;for(var i=0;i<len;i++){var area=signedArea(rings[i]);if(area===0)continue;if(ccw===undefined)ccw=area<0;if(ccw===area<0){if(polygon)polygons.push(polygon);polygon=[rings[i]]}else{polygon.push(rings[i])}}if(polygon)polygons.push(polygon);return polygons}function signedArea(ring){var sum=0;for(var i=0,len=ring.length,j=len-1,p1,p2;i<len;j=i++){p1=ring[i];p2=ring[j];sum+=(p2.x-p1.x)*(p1.y+p2.y)}return sum}},{"point-geometry":196}],209:[function(require,module,exports){"use strict";var VectorTileFeature=require("./vectortilefeature.js");module.exports=VectorTileLayer;function VectorTileLayer(pbf,end){this.version=1;this.name=null;this.extent=4096;this.length=0;this._pbf=pbf;this._keys=[];this._values=[];this._features=[];pbf.readFields(readLayer,this,end);this.length=this._features.length}function readLayer(tag,layer,pbf){if(tag===15)layer.version=pbf.readVarint();else if(tag===1)layer.name=pbf.readString();else if(tag===5)layer.extent=pbf.readVarint();else if(tag===2)layer._features.push(pbf.pos);else if(tag===3)layer._keys.push(pbf.readString());else if(tag===4)layer._values.push(readValueMessage(pbf))}function readValueMessage(pbf){var value=null,end=pbf.readVarint()+pbf.pos;while(pbf.pos<end){var tag=pbf.readVarint()>>3;value=tag===1?pbf.readString():tag===2?pbf.readFloat():tag===3?pbf.readDouble():tag===4?pbf.readVarint64():tag===5?pbf.readVarint():tag===6?pbf.readSVarint():tag===7?pbf.readBoolean():null}return value}VectorTileLayer.prototype.feature=function(i){if(i<0||i>=this._features.length)throw new Error("feature index out of bounds");this._pbf.pos=this._features[i];var end=this._pbf.readVarint()+this._pbf.pos;return new VectorTileFeature(this._pbf,end,this.extent,this._keys,this._values)}},{"./vectortilefeature.js":208}],210:[function(require,module,exports){var Pbf=require("pbf");var vtpb=require("./vector-tile-pb");var GeoJSONWrapper=require("./lib/geojson_wrapper");module.exports=fromVectorTileJs;module.exports.fromVectorTileJs=fromVectorTileJs;module.exports.fromGeojsonVt=fromGeojsonVt;module.exports.GeoJSONWrapper=GeoJSONWrapper;function fromVectorTileJs(tile){var layers=[];for(var l in tile.layers){layers.push(prepareLayer(tile.layers[l]))}var out=new Pbf;vtpb.tile.write({layers:layers},out);return out.finish()}function fromGeojsonVt(layers){var l={};for(var k in layers){l[k]=new GeoJSONWrapper(layers[k].features);l[k].name=k}return fromVectorTileJs({layers:l})}function prepareLayer(layer){var preparedLayer={name:layer.name||"",version:layer.version||1,extent:layer.extent||4096,keys:[],values:[],features:[]};var keycache={};var valuecache={};for(var i=0;i<layer.length;i++){var feature=layer.feature(i);feature.geometry=encodeGeometry(feature.loadGeometry());var tags=[];for(var key in feature.properties){var keyIndex=keycache[key];if(typeof keyIndex==="undefined"){preparedLayer.keys.push(key);keyIndex=preparedLayer.keys.length-1;keycache[key]=keyIndex}var value=wrapValue(feature.properties[key]);var valueIndex=valuecache[value.key];if(typeof valueIndex==="undefined"){preparedLayer.values.push(value);valueIndex=preparedLayer.values.length-1;valuecache[value.key]=valueIndex}tags.push(keyIndex);tags.push(valueIndex)}feature.tags=tags;preparedLayer.features.push(feature)}return preparedLayer}function command(cmd,length){return(length<<3)+(cmd&7)}function zigzag(num){return num<<1^num>>31}function encodeGeometry(geometry){var encoded=[];var x=0;var y=0;var rings=geometry.length;for(var r=0;r<rings;r++){var ring=geometry[r];encoded.push(command(1,1));for(var i=0;i<ring.length;i++){if(i===1){encoded.push(command(2,ring.length-1))}var dx=ring[i].x-x;var dy=ring[i].y-y;encoded.push(zigzag(dx),zigzag(dy));x+=dx;y+=dy}}return encoded}function wrapValue(value){var result;var type=typeof value;if(type==="string"){result={string_value:value}}else if(type==="boolean"){result={bool_value:value}}else if(type==="number"){if(value%1!==0){result={double_value:value}}else if(value<0){result={sint_value:value}}else{result={uint_value:value}}}else{value=JSON.stringify(value);result={string_value:value}}result.key=type+":"+value;return result}},{"./lib/geojson_wrapper":211,"./vector-tile-pb":212,pbf:194}],211:[function(require,module,exports){"use strict";var Point=require("point-geometry");var VectorTileFeature=require("vector-tile").VectorTileFeature;module.exports=GeoJSONWrapper;function GeoJSONWrapper(features){this.features=features;this.length=features.length}GeoJSONWrapper.prototype.feature=function(i){return new FeatureWrapper(this.features[i])};function FeatureWrapper(feature){this.id=typeof feature.id==="number"?feature.id:undefined;this.type=feature.type;this.rawGeometry=feature.type===1?[feature.geometry]:feature.geometry;this.properties=feature.tags;this.extent=4096}FeatureWrapper.prototype.loadGeometry=function(){var rings=this.rawGeometry;this.geometry=[];for(var i=0;i<rings.length;i++){var ring=rings[i];var newRing=[];for(var j=0;j<ring.length;j++){newRing.push(new Point(ring[j][0],ring[j][1]))}this.geometry.push(newRing)}return this.geometry};FeatureWrapper.prototype.bbox=function(){if(!this.geometry)this.loadGeometry();var rings=this.geometry;var x1=Infinity;var x2=-Infinity;var y1=Infinity;var y2=-Infinity;for(var i=0;i<rings.length;i++){var ring=rings[i];for(var j=0;j<ring.length;j++){var coord=ring[j];x1=Math.min(x1,coord.x);x2=Math.max(x2,coord.x);y1=Math.min(y1,coord.y);y2=Math.max(y2,coord.y)}}return[x1,y1,x2,y2]};FeatureWrapper.prototype.toGeoJSON=VectorTileFeature.prototype.toGeoJSON},{"point-geometry":196,"vector-tile":206}],212:[function(require,module,exports){"use strict";var tile=exports.tile={read:readTile,write:writeTile};tile.GeomType={Unknown:0,Point:1,LineString:2,Polygon:3};function readTile(pbf,end){return pbf.readFields(readTileField,{layers:[]},end)}function readTileField(tag,tile,pbf){if(tag===3)tile.layers.push(readLayer(pbf,pbf.readVarint()+pbf.pos))}function writeTile(tile,pbf){var i;if(tile.layers!==undefined)for(i=0;i<tile.layers.length;i++)pbf.writeMessage(3,writeLayer,tile.layers[i])}tile.value={read:readValue,write:writeValue};function readValue(pbf,end){return pbf.readFields(readValueField,{},end)}function readValueField(tag,value,pbf){if(tag===1)value.string_value=pbf.readString();else if(tag===2)value.float_value=pbf.readFloat();else if(tag===3)value.double_value=pbf.readDouble();else if(tag===4)value.int_value=pbf.readVarint();else if(tag===5)value.uint_value=pbf.readVarint();else if(tag===6)value.sint_value=pbf.readSVarint();else if(tag===7)value.bool_value=pbf.readBoolean()}function writeValue(value,pbf){if(value.string_value!==undefined)pbf.writeStringField(1,value.string_value);if(value.float_value!==undefined)pbf.writeFloatField(2,value.float_value);if(value.double_value!==undefined)pbf.writeDoubleField(3,value.double_value);if(value.int_value!==undefined)pbf.writeVarintField(4,value.int_value);if(value.uint_value!==undefined)pbf.writeVarintField(5,value.uint_value);if(value.sint_value!==undefined)pbf.writeSVarintField(6,value.sint_value);if(value.bool_value!==undefined)pbf.writeBooleanField(7,value.bool_value)}tile.feature={read:readFeature,write:writeFeature};function readFeature(pbf,end){var feature=pbf.readFields(readFeatureField,{},end);if(feature.type===undefined)feature.type="Unknown";return feature}function readFeatureField(tag,feature,pbf){if(tag===1)feature.id=pbf.readVarint();else if(tag===2)feature.tags=pbf.readPackedVarint();else if(tag===3)feature.type=pbf.readVarint();else if(tag===4)feature.geometry=pbf.readPackedVarint()}function writeFeature(feature,pbf){if(feature.id!==undefined)pbf.writeVarintField(1,feature.id);if(feature.tags!==undefined)pbf.writePackedVarint(2,feature.tags);if(feature.type!==undefined)pbf.writeVarintField(3,feature.type);if(feature.geometry!==undefined)pbf.writePackedVarint(4,feature.geometry)}tile.layer={read:readLayer,write:writeLayer};function readLayer(pbf,end){return pbf.readFields(readLayerField,{features:[],keys:[],values:[]},end)}function readLayerField(tag,layer,pbf){if(tag===15)layer.version=pbf.readVarint();else if(tag===1)layer.name=pbf.readString();else if(tag===2)layer.features.push(readFeature(pbf,pbf.readVarint()+pbf.pos));else if(tag===3)layer.keys.push(pbf.readString());else if(tag===4)layer.values.push(readValue(pbf,pbf.readVarint()+pbf.pos));else if(tag===5)layer.extent=pbf.readVarint()}function writeLayer(layer,pbf){if(layer.version!==undefined)pbf.writeVarintField(15,layer.version);if(layer.name!==undefined)pbf.writeStringField(1,layer.name);var i;if(layer.features!==undefined)for(i=0;i<layer.features.length;i++)pbf.writeMessage(2,writeFeature,layer.features[i]);if(layer.keys!==undefined)for(i=0;i<layer.keys.length;i++)pbf.writeStringField(3,layer.keys[i]);if(layer.values!==undefined)for(i=0;i<layer.values.length;i++)pbf.writeMessage(4,writeValue,layer.values[i]);if(layer.extent!==undefined)pbf.writeVarintField(5,layer.extent)}},{}],213:[function(require,module,exports){var bundleFn=arguments[3];var sources=arguments[4];var cache=arguments[5];var stringify=JSON.stringify;module.exports=function(fn,options){var wkey;var cacheKeys=Object.keys(cache);for(var i=0,l=cacheKeys.length;i<l;i++){var key=cacheKeys[i];var exp=cache[key].exports;if(exp===fn||exp&&exp.default===fn){wkey=key;break}}if(!wkey){wkey=Math.floor(Math.pow(16,8)*Math.random()).toString(16);var wcache={};for(var i=0,l=cacheKeys.length;i<l;i++){var key=cacheKeys[i];wcache[key]=key}sources[wkey]=[Function(["require","module","exports"],"("+fn+")(self)"),wcache]}var skey=Math.floor(Math.pow(16,8)*Math.random()).toString(16);var scache={};scache[wkey]=wkey;sources[skey]=[Function(["require"],"var f = require("+stringify(wkey)+");"+"(f.default ? f.default : f)(self);"),scache];var workerSources={};resolveSources(skey);function resolveSources(key){workerSources[key]=true;for(var depPath in sources[key][1]){var depKey=sources[key][1][depPath];if(!workerSources[depKey]){resolveSources(depKey)}}}var src="("+bundleFn+")({"+Object.keys(workerSources).map(function(key){return stringify(key)+":["+sources[key][0]+","+stringify(sources[key][1])+"]"}).join(",")+"},{},["+stringify(skey)+"])";var URL=window.URL||window.webkitURL||window.mozURL||window.msURL;var blob=new Blob([src],{type:"text/javascript"});if(options&&options.bare){return blob}var workerUrl=URL.createObjectURL(blob);var worker=new Worker(workerUrl);worker.objectURL=workerUrl;return worker}},{}],214:[function(require,module,exports){(function(global,factory){typeof exports==="object"&&typeof module!=="undefined"?factory(exports):typeof define==="function"&&define.amd?define(["exports"],factory):factory(global.WhooTS=global.WhooTS||{})})(this,function(exports){function getURL(baseUrl,layer,x,y,z,options){options=options||{};var url=baseUrl+"?"+["bbox="+getTileBBox(x,y,z),"format="+(options.format||"image/png"),"service="+(options.service||"WMS"),"version="+(options.version||"1.1.1"),"request="+(options.request||"GetMap"),"srs="+(options.srs||"EPSG:3857"),"width="+(options.width||256),"height="+(options.height||256),"layers="+layer].join("&");return url}function getTileBBox(x,y,z){y=Math.pow(2,z)-y-1;var min=getMercCoords(x*256,y*256,z),max=getMercCoords((x+1)*256,(y+1)*256,z);return min[0]+","+min[1]+","+max[0]+","+max[1]}function getMercCoords(x,y,z){var resolution=2*Math.PI*6378137/256/Math.pow(2,z),merc_x=x*resolution-2*Math.PI*6378137/2,merc_y=y*resolution-2*Math.PI*6378137/2;return[merc_x,merc_y]}exports.getURL=getURL;exports.getTileBBox=getTileBBox;exports.getMercCoords=getMercCoords;Object.defineProperty(exports,"__esModule",{value:true})})},{}],215:[function(require,module,exports){module.exports={version:"0.26.0"}},{}],216:[function(require,module,exports){(function(global,factory){typeof exports==="object"&&typeof module!=="undefined"?factory(exports):typeof define==="function"&&define.amd?define(["exports"],factory):factory(global.topojson=global.topojson||{})})(this,function(exports){"use strict";var identity=function(x){return x};var transform=function(topology){if((transform=topology.transform)==null)return identity;var transform,x0,y0,kx=transform.scale[0],ky=transform.scale[1],dx=transform.translate[0],dy=transform.translate[1];return function(point,i){if(!i)x0=y0=0;point[0]=(x0+=point[0])*kx+dx;point[1]=(y0+=point[1])*ky+dy;return point}};var bbox=function(topology){var bbox=topology.bbox;function bboxPoint(p0){p1[0]=p0[0],p1[1]=p0[1],t(p1);if(p1[0]<x0)x0=p1[0];if(p1[0]>x1)x1=p1[0];if(p1[1]<y0)y0=p1[1];if(p1[1]>y1)y1=p1[1]}function bboxGeometry(o){switch(o.type){case"GeometryCollection":o.geometries.forEach(bboxGeometry);break;case"Point":bboxPoint(o.coordinates);break;case"MultiPoint":o.coordinates.forEach(bboxPoint);break}}if(!bbox){var t=transform(topology),p0,p1=new Array(2),name,x0=Infinity,y0=x0,x1=-x0,y1=-x0;topology.arcs.forEach(function(arc){var i=-1,n=arc.length;while(++i<n){p0=arc[i],p1[0]=p0[0],p1[1]=p0[1],t(p1,i);if(p1[0]<x0)x0=p1[0];if(p1[0]>x1)x1=p1[0];if(p1[1]<y0)y0=p1[1];if(p1[1]>y1)y1=p1[1]}});for(name in topology.objects){bboxGeometry(topology.objects[name])}bbox=topology.bbox=[x0,y0,x1,y1]}return bbox};var reverse=function(array,n){var t,j=array.length,i=j-n;while(i<--j)t=array[i],array[i++]=array[j],array[j]=t};var feature=function(topology,o){return o.type==="GeometryCollection"?{type:"FeatureCollection",features:o.geometries.map(function(o){return feature$1(topology,o)})}:feature$1(topology,o)};function feature$1(topology,o){var id=o.id,bbox=o.bbox,properties=o.properties==null?{}:o.properties,geometry=object(topology,o);return id==null&&bbox==null?{type:"Feature",properties:properties,geometry:geometry}:bbox==null?{type:"Feature",id:id,properties:properties,geometry:geometry}:{type:"Feature",id:id,bbox:bbox,properties:properties,geometry:geometry}}function object(topology,o){var transformPoint=transform(topology),arcs=topology.arcs;function arc(i,points){if(points.length)points.pop();for(var a=arcs[i<0?~i:i],k=0,n=a.length;k<n;++k){points.push(transformPoint(a[k].slice(),k))}if(i<0)reverse(points,n)}function point(p){return transformPoint(p.slice())}function line(arcs){var points=[];for(var i=0,n=arcs.length;i<n;++i)arc(arcs[i],points);if(points.length<2)points.push(points[0].slice());return points}function ring(arcs){var points=line(arcs);while(points.length<4)points.push(points[0].slice());return points}function polygon(arcs){return arcs.map(ring)}function geometry(o){var type=o.type,coordinates;switch(type){case"GeometryCollection":return{type:type,geometries:o.geometries.map(geometry)};case"Point":coordinates=point(o.coordinates);break;case"MultiPoint":coordinates=o.coordinates.map(point);break;case"LineString":coordinates=line(o.arcs);break;case"MultiLineString":coordinates=o.arcs.map(line);break;case"Polygon":coordinates=polygon(o.arcs);break;case"MultiPolygon":coordinates=o.arcs.map(polygon);break;default:return null}return{type:type,coordinates:coordinates}}return geometry(o)}var stitch=function(topology,arcs){var stitchedArcs={},fragmentByStart={},fragmentByEnd={},fragments=[],emptyIndex=-1;arcs.forEach(function(i,j){var arc=topology.arcs[i<0?~i:i],t;if(arc.length<3&&!arc[1][0]&&!arc[1][1]){t=arcs[++emptyIndex],arcs[emptyIndex]=i,arcs[j]=t}});arcs.forEach(function(i){var e=ends(i),start=e[0],end=e[1],f,g;if(f=fragmentByEnd[start]){delete fragmentByEnd[f.end];f.push(i);f.end=end;if(g=fragmentByStart[end]){delete fragmentByStart[g.start];var fg=g===f?f:f.concat(g);
fragmentByStart[fg.start=f.start]=fragmentByEnd[fg.end=g.end]=fg}else{fragmentByStart[f.start]=fragmentByEnd[f.end]=f}}else if(f=fragmentByStart[end]){delete fragmentByStart[f.start];f.unshift(i);f.start=start;if(g=fragmentByEnd[start]){delete fragmentByEnd[g.end];var gf=g===f?f:g.concat(f);fragmentByStart[gf.start=g.start]=fragmentByEnd[gf.end=f.end]=gf}else{fragmentByStart[f.start]=fragmentByEnd[f.end]=f}}else{f=[i];fragmentByStart[f.start=start]=fragmentByEnd[f.end=end]=f}});function ends(i){var arc=topology.arcs[i<0?~i:i],p0=arc[0],p1;if(topology.transform)p1=[0,0],arc.forEach(function(dp){p1[0]+=dp[0],p1[1]+=dp[1]});else p1=arc[arc.length-1];return i<0?[p1,p0]:[p0,p1]}function flush(fragmentByEnd,fragmentByStart){for(var k in fragmentByEnd){var f=fragmentByEnd[k];delete fragmentByStart[f.start];delete f.start;delete f.end;f.forEach(function(i){stitchedArcs[i<0?~i:i]=1});fragments.push(f)}}flush(fragmentByEnd,fragmentByStart);flush(fragmentByStart,fragmentByEnd);arcs.forEach(function(i){if(!stitchedArcs[i<0?~i:i])fragments.push([i])});return fragments};var mesh=function(topology){return object(topology,meshArcs.apply(this,arguments))};function meshArcs(topology,object$$1,filter){var arcs,i,n;if(arguments.length>1)arcs=extractArcs(topology,object$$1,filter);else for(i=0,arcs=new Array(n=topology.arcs.length);i<n;++i)arcs[i]=i;return{type:"MultiLineString",arcs:stitch(topology,arcs)}}function extractArcs(topology,object$$1,filter){var arcs=[],geomsByArc=[],geom;function extract0(i){var j=i<0?~i:i;(geomsByArc[j]||(geomsByArc[j]=[])).push({i:i,g:geom})}function extract1(arcs){arcs.forEach(extract0)}function extract2(arcs){arcs.forEach(extract1)}function extract3(arcs){arcs.forEach(extract2)}function geometry(o){switch(geom=o,o.type){case"GeometryCollection":o.geometries.forEach(geometry);break;case"LineString":extract1(o.arcs);break;case"MultiLineString":case"Polygon":extract2(o.arcs);break;case"MultiPolygon":extract3(o.arcs);break}}geometry(object$$1);geomsByArc.forEach(filter==null?function(geoms){arcs.push(geoms[0].i)}:function(geoms){if(filter(geoms[0].g,geoms[geoms.length-1].g))arcs.push(geoms[0].i)});return arcs}function planarRingArea(ring){var i=-1,n=ring.length,a,b=ring[n-1],area=0;while(++i<n)a=b,b=ring[i],area+=a[0]*b[1]-a[1]*b[0];return Math.abs(area)}var merge=function(topology){return object(topology,mergeArcs.apply(this,arguments))};function mergeArcs(topology,objects){var polygonsByArc={},polygons=[],groups=[];objects.forEach(geometry);function geometry(o){switch(o.type){case"GeometryCollection":o.geometries.forEach(geometry);break;case"Polygon":extract(o.arcs);break;case"MultiPolygon":o.arcs.forEach(extract);break}}function extract(polygon){polygon.forEach(function(ring){ring.forEach(function(arc){(polygonsByArc[arc=arc<0?~arc:arc]||(polygonsByArc[arc]=[])).push(polygon)})});polygons.push(polygon)}function area(ring){return planarRingArea(object(topology,{type:"Polygon",arcs:[ring]}).coordinates[0])}polygons.forEach(function(polygon){if(!polygon._){var group=[],neighbors=[polygon];polygon._=1;groups.push(group);while(polygon=neighbors.pop()){group.push(polygon);polygon.forEach(function(ring){ring.forEach(function(arc){polygonsByArc[arc<0?~arc:arc].forEach(function(polygon){if(!polygon._){polygon._=1;neighbors.push(polygon)}})})})}}});polygons.forEach(function(polygon){delete polygon._});return{type:"MultiPolygon",arcs:groups.map(function(polygons){var arcs=[],n;polygons.forEach(function(polygon){polygon.forEach(function(ring){ring.forEach(function(arc){if(polygonsByArc[arc<0?~arc:arc].length<2){arcs.push(arc)}})})});arcs=stitch(topology,arcs);if((n=arcs.length)>1){for(var i=1,k=area(arcs[0]),ki,t;i<n;++i){if((ki=area(arcs[i]))>k){t=arcs[0],arcs[0]=arcs[i],arcs[i]=t,k=ki}}}return arcs})}}var bisect=function(a,x){var lo=0,hi=a.length;while(lo<hi){var mid=lo+hi>>>1;if(a[mid]<x)lo=mid+1;else hi=mid}return lo};var neighbors=function(objects){var indexesByArc={},neighbors=objects.map(function(){return[]});function line(arcs,i){arcs.forEach(function(a){if(a<0)a=~a;var o=indexesByArc[a];if(o)o.push(i);else indexesByArc[a]=[i]})}function polygon(arcs,i){arcs.forEach(function(arc){line(arc,i)})}function geometry(o,i){if(o.type==="GeometryCollection")o.geometries.forEach(function(o){geometry(o,i)});else if(o.type in geometryType)geometryType[o.type](o.arcs,i)}var geometryType={LineString:line,MultiLineString:polygon,Polygon:polygon,MultiPolygon:function(arcs,i){arcs.forEach(function(arc){polygon(arc,i)})}};objects.forEach(geometry);for(var i in indexesByArc){for(var indexes=indexesByArc[i],m=indexes.length,j=0;j<m;++j){for(var k=j+1;k<m;++k){var ij=indexes[j],ik=indexes[k],n;if((n=neighbors[ij])[i=bisect(n,ik)]!==ik)n.splice(i,0,ik);if((n=neighbors[ik])[i=bisect(n,ij)]!==ij)n.splice(i,0,ij)}}}return neighbors};var quantize=function(topology,n){if(!((n=Math.floor(n))>=2))throw new Error("n must be ≥2");if(topology.transform)throw new Error("already quantized");var bb=bbox(topology),name,dx=bb[0],kx=(bb[2]-dx)/(n-1)||1,dy=bb[1],ky=(bb[3]-dy)/(n-1)||1;function quantizePoint(p){p[0]=Math.round((p[0]-dx)/kx);p[1]=Math.round((p[1]-dy)/ky)}function quantizeGeometry(o){switch(o.type){case"GeometryCollection":o.geometries.forEach(quantizeGeometry);break;case"Point":quantizePoint(o.coordinates);break;case"MultiPoint":o.coordinates.forEach(quantizePoint);break}}topology.arcs.forEach(function(arc){var i=1,j=1,n=arc.length,pi=arc[0],x0=pi[0]=Math.round((pi[0]-dx)/kx),y0=pi[1]=Math.round((pi[1]-dy)/ky),pj,x1,y1;for(;i<n;++i){pi=arc[i];x1=Math.round((pi[0]-dx)/kx);y1=Math.round((pi[1]-dy)/ky);if(x1!==x0||y1!==y0){pj=arc[j++];pj[0]=x1-x0,x0=x1;pj[1]=y1-y0,y0=y1}}if(j<2){pj=arc[j++];pj[0]=0;pj[1]=0}arc.length=j});for(name in topology.objects){quantizeGeometry(topology.objects[name])}topology.transform={scale:[kx,ky],translate:[dx,dy]};return topology};var untransform=function(topology){if((transform=topology.transform)==null)return identity;var transform,x0,y0,kx=transform.scale[0],ky=transform.scale[1],dx=transform.translate[0],dy=transform.translate[1];return function(point,i){if(!i)x0=y0=0;var x1=Math.round((point[0]-dx)/kx),y1=Math.round((point[1]-dy)/ky);point[0]=x1-x0,x0=x1;point[1]=y1-y0,y0=y1;return point}};exports.bbox=bbox;exports.feature=feature;exports.mesh=mesh;exports.meshArcs=meshArcs;exports.merge=merge;exports.mergeArcs=mergeArcs;exports.neighbors=neighbors;exports.quantize=quantize;exports.transform=transform;exports.untransform=untransform;Object.defineProperty(exports,"__esModule",{value:true})})},{}]},{},[13]);

index.html

<!DOCTYPE html>
<html>
<head>
    <meta charset='utf-8' />
    <title></title>
    <meta name='viewport' content='initial-scale=1,maximum-scale=1,user-scalable=no' />
    <link href='https://api.tiles.mapbox.com/mapbox-gl-js/v0.26.0/mapbox-gl.css' rel='stylesheet' />
</head>
<body></body>
<script src='./bundle.js'></script>
</html>

index.js

var mapboxgl = require('mapbox-gl')
var d3_selection = require('d3-selection')
var d3_format = require('d3-format')
var topojson = require('topojson-client')

var topology = require('./data.json')
var data = topojson.feature(topology, topology.objects['0'])

data.properties = topology.objects['0'].properties

var specs = [{
  key: 'pop',
  name: 'Population',
  units: 'habitants',
  cbUnits: 'millier d\'habitants',
  format: ','
}, {
  key: 'density',
  name: 'Densité de population',
  units: 'habitants par km²',
  cbUnits: 'millers d\'habitants par km²',
  format: ',.2f'
}]
.reverse()

mapboxgl.accessToken = process.env["MAPBOX_TOKEN"]

d3_format.formatDefaultLocale({
  decimal: ',',
  thousands: ' ',
  grouping: [3]
})

d3_selection.select('body')
  .append('fieldset')
  .style('border', 'none')
  .append('select')
  .attr('id', 'layer-select')
  .selectAll('option')
  .data(specs)
  .enter()
  .append('option')
  .attr('value', (d) => d.key)
  .text((d) => d.name)

d3_selection.select('body')
  .append('div')
  .attr('id', 'map')
  .style('width', '1000px')
  .style('height', '800px')

d3_selection.select('body')
  .append('svg')
  .attr('width', 1000)
  .attr('height', 300)

var map = new mapboxgl.Map({
  container: 'map',
  style: 'mapbox://styles/mapbox/light-v9',
  center: [-73.67563994222256, 45.491548049146814],
  zoom: 10,
  pitch: 10
})

map.addControl(new mapboxgl.NavigationControl())

var popup = new mapboxgl.Popup({
  closeButton: false,
  closeOnClick: false
})

map.on('load', () => {
  map.addSource('source', {
    type: 'geojson',
    data: data
  })

  specs.forEach((spec) => {
    addChoroplethLayer(spec)
    addExtrudedLayers(spec)
    addColorbar(spec)
  })

  map.on('mousemove', mousemoveHandler)
  map.on('click', clickHandler)

  setVisibility()

  d3_selection.select('#layer-select').on('click', () => {
    clearVisibility()
    setVisibility()
  })
})

function addChoroplethLayer(spec) {
  var key = spec.key

  map.addLayer({
    id: 'choropleth-' + key,
    type: 'fill',
    source: 'source',
    layout: { visibility: 'none' },
    paint: {
      'fill-color': {
        property: key + '-color',
        type: 'identity'
      },
      'fill-outline-color': '#088',
      'fill-opacity': 0.7
    }
  })
}

function addExtrudedLayers(spec) {
  var key = spec.key

  data.features.forEach((f) => {
    var name = f.properties.name

    map.addLayer({
      id: `extrude-${name}-${key}`,
      type: 'fill',
      source: 'source',
      layout: { visibility: 'none' },
      paint: {
        'fill-color': {
          property: key + '-color',
          type: 'identity'
        },
        'fill-extrude-height': {
          property: key + '-z',
          type: 'identity'
        },
        'fill-extrude-base': 0,
        'fill-opacity': 0.65
      },
      filter: ['==', 'name', name]
    })
  })
}

function addColorbar(spec) {
  var key = spec.key
  var colorbarData = data.properties[key + '-colorbar']
  var formatter = (v) => v / 1e3
  var n = colorbarData.length
  var w = 50
  var h = 30

  var colorbar = d3_selection.select('svg').append('g')
    .attr('id', 'colorbar-' + key)
    .classed('colorbar', true)
    .style('cursor', 'pointer')
    .style('visibility', 'hidden')

  var items = colorbar.selectAll('.item')
      .data(colorbarData)
    .enter().append('g')
      .classed('item', true)
      .attr('transform', (_, i) => `translate(${i * w + 5},0)`)

  items.append('rect')
    .attr('x', 0)
    .attr('y', 0)
    .attr('width', w)
    .attr('height', h)
    .attr('fill', (d) => d[1])

  items.append('line')
    .attr('x1', 0)
    .attr('y1', h)
    .attr('x2', 0)
    .attr('y2', h + 5)
    .attr('stroke-width', '1.5')
    .attr('stroke', 'black')

  items.append('text')
    .text((d) => formatter(d[0]))
    .attr('x', -5)
    .attr('y', 2 * h)

  colorbar.append('text')
    .text(`${spec.name}`)
    .attr('x', `${w * n + 10}`)
    .attr('y', h / 2 + 5)

  colorbar.append('text')
    .text(`[en ${spec.cbUnits}]`)
    .attr('x', `${w * n + 10}`)
    .attr('y', h + 15)

  items.on('click', (d, i) => {
    var min = d[0]
    var max = colorbarData[i + 1] ? colorbarData[i + 1][0] : Infinity
    var featuresWithin = []

    data.features.forEach((f) => {
      var val = f.properties[key]

      if(val >= min && val < max) {
        featuresWithin.push(f)
      }
    })

    var areAllFeatureVisible = featuresWithin.every((f) =>
       extrudeVisiblity(f, key).get() === 'visible'
    )

    var newVal = areAllFeatureVisible ? 'none' : 'visible'

    featuresWithin.forEach((f) => {
      extrudeVisiblity(f, key).set(newVal)
    })
  })
}

function mousemoveHandler(evt) {
  var features = findFeatures(evt)

  map.getCanvas().style.cursor = (features.length) ? 'pointer' : ''

  if(!features.length) {
    popup.remove()
    return
  }

  var spec = getVisibleSpec()
  var feature = features[0]
  var prop = feature.properties
  var lnglat = JSON.parse(prop.centroid)
  var formatter = d3_format.format(spec.format)

  var html = `
    <b>${prop.name}</b><br>
    Population: ${formatter(prop[spec.key])} ${spec.units}
  `.trim()

  popup.setLngLat(new mapboxgl.LngLat(lnglat[0], lnglat[1]))
    .setHTML(html)
    .addTo(map)

  popup._container.onclick = () => {
    extrudeVisiblity(feature, spec.key).toggle()
  }
}

function clickHandler(evt) {
  var features = findFeatures(evt)

  if(!features.length) return

  var feature = features[0]
  var spec = getVisibleSpec()

  extrudeVisiblity(feature, spec.key).toggle()
}

function getVisibleSpec() {
  var key = d3_selection.select('#layer-select').node().value

  return specs.filter((s) => s.key === key)[0]
}

function findFeatures(evt) {
  return map.queryRenderedFeatures(evt.point, {
    layers: specs.map((s) => 'choropleth-' + s.key)
  })
}

function setVisibility() {
  var spec = getVisibleSpec()
  var key = spec.key

  map.setLayoutProperty('choropleth-' + key, 'visibility', 'visible')
  d3_selection.select('#colorbar-' + key).style('visibility', null)
}

function clearVisibility() {
  specs.forEach((s) => {
    var key = s.key

    map.setLayoutProperty('choropleth-' + key, 'visibility', 'none')
    d3_selection.select('#colorbar-' + key).style('visibility', 'hidden')

    data.features.forEach((f) => {
      extrudeVisiblity(f, key).set('none')
    })
  })
}

function extrudeVisiblity(feature, key) {
  var name = feature.properties.name
  var layerId = `extrude-${name}-${key}`

  var get = () => map.getLayoutProperty(layerId, 'visibility')
  var set = (val) => map.setLayoutProperty(layerId, 'visibility', val)
  var toggle = () => set(get() === 'visible' ? 'none' : 'visible')

  return {
    get: get,
    set: set,
    toggle: toggle
  }
}

package.json

{
  "name": "mapbox-gl-extrude",
  "version": "1.0.0",
  "description": "Try mapbox-gl 3D extrude fill layers",
  "main": "index.js",
  "scripts": {
    "wget": "./wget.sh",
    "prestart": "node prestart.js",
    "start": "budo index.js --open --live --css node_modules/mapbox-gl/dist/mapbox-gl.css",
    "build": "browserify -t es2020 index.js | uglifyjs > bundle.js"
  },
  "author": "Étienne Tétreault-Pinard",
  "license": "MIT",
  "dependencies": {
    "d3-format": "^1.0.2",
    "d3-selection": "^1.0.2",
    "mapbox-gl": "^0.26.0",
    "topojson-client": "^2.1.0"
  },
  "devDependencies": {
    "@turf/area": "^3.5.2",
    "@turf/centroid": "^3.5.2",
    "csv-parse": "^1.1.7",
    "d3-array": "^1.0.1",
    "d3-scale": "^1.0.3",
    "es2020": "^1.1.9",
    "topojson": "^2.0.0"
  }
}

prestart.js

var fs = require('fs')
var parse = require('csv-parse')
var d3_scale = require('d3-scale')
var d3_array = require('d3-array')
var topojson = require('topojson')
var centroid = require('@turf/centroid')
var area = require('@turf/area')

var polygons = require('./raw_data/polygons.json')
var pkg = require('./package.json')
var popCSVpath = 'raw_data/population.csv'
var nameProp = 'NOM'


fs.readFile(popCSVpath, 'utf-8', (err, txt) => {
  if(err) throw err

  parse(cleanCSV(txt), (err, rows) => {
    if(err) throw err

    fs.writeFile('data.json', JSON.stringify(makeData(rows)), (err) => {
      if(err) throw err
    })

  })
})

function cleanCSV(txt) {
  return txt.split('\n')
    .map((line) => line.trim())
    .filter((line) => line !== ',,')
    .filter((_, i, self) => i < self.length - 3)
    .join('\n')
}

function format(s) {
  return s
    .replace(/\W/g, '')
    .toLowerCase()
}

function makeData(rows) {
  var data = {
    name: pkg.name,
    type: 'FeatureCollection'
  }

  var features = rows2features(rows)

  // 'pop' en nombre d'habitants
  // 'density' en habitants / km^2

  data.features = features
  data.properties = {};

  [{
    key: 'pop', nticks: 10
  }, {
    key: 'density', nticks: 5
  }]
  .forEach((spec) => {
    var k = spec.key
    var domain = [0, d3_array.max(features, (f) => f.properties[k])]
    var scaleColor = makeScaleColor(domain)
    var scaleZ = makeScaleZ(domain)

    features.forEach((f) => {
      var v = f.properties[k]

      f.properties[k + '-color'] = scaleColor(v)
      f.properties[k + '-z'] = scaleZ(v)

    })

    data.properties[k + '-colorbar'] = makeColorbar(scaleColor, spec.nticks)
  })

  return convertToTopojson(data)
}

function rows2features(rows) {
  var _features = polygons.features
  var nameList = _features.map((f) => format(f.properties[nameProp]))
  var out = []

  rows.forEach((r) => {
    var index = nameList.indexOf(format(r[0]))

    if(index === -1) return

    var pop = Number(r[2])
    var _feature = _features[index]

    out.push({
      type: 'Feature',
      geometry: _feature.geometry,
      properties: {
        name: _feature.properties[nameProp],
        pop: pop,
        density: pop / area(_feature) * 1e6,
        centroid: centroid(_feature).geometry.coordinates
      }
    })
  })

  return out
}

function makeScaleColor(domain) {
  return d3_scale.scaleSequential(d3_scale.interpolateViridis)
    .domain(domain)
}

function makeScaleZ(domain) {
  return d3_scale.scaleLinear()
    .domain(domain)
    .range([0, 1e4])
}

function makeColorbar(scaleColor, nticks) {
  var domain = scaleColor.domain()

  return d3_array.ticks(domain[0], domain[1], nticks).map((v) =>
     [v, scaleColor(v)]
  )
}

function convertToTopojson(data) {
  var collection = { 0: data }

  return topojson.topology(collection)
}

preview.gif

thumbnail.png

wget.sh