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Topojson.js for use in a Fulcrum calculated field
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/* | |
Copyright (c) 2012, Michael Bostock | |
All rights reserved. | |
Redistribution and use in source and binary forms, with or without | |
modification, are permitted provided that the following conditions are met: | |
* Redistributions of source code must retain the above copyright notice, this | |
list of conditions and the following disclaimer. | |
* Redistributions in binary form must reproduce the above copyright notice, | |
this list of conditions and the following disclaimer in the documentation | |
and/or other materials provided with the distribution. | |
* The name Michael Bostock may not be used to endorse or promote products | |
derived from this software without specific prior written permission. | |
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
DISCLAIMED. IN NO EVENT SHALL MICHAEL BOSTOCK BE LIABLE FOR ANY DIRECT, | |
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, | |
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
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u(A){A.forEach(function(B){B.forEach(function(C){(w[C=C<0?~C:C]||(w[C]=[])).push(A)})});t.push(A)}function x(A){return j(q(z,{type:"Polygon",arcs:[A]}).coordinates[0])>0}t.forEach(function(C){if(!C._){var A=[],B=[C];C._=1;v.push(A);while(C=B.pop()){A.push(C);C.forEach(function(D){D.forEach(function(E){w[E<0?~E:E].forEach(function(F){if(!F._){F._=1;B.push(F)}})})})}}});t.forEach(function(A){delete A._});return{type:"MultiPolygon",arcs:v.map(function(A){var D=[];A.forEach(function(F){F.forEach(function(G){G.forEach(function(H){if(w[H<0?~H:H].length<2){D.push(H)}})})});D=a(z,D);if((n=D.length)>1){var E=x(A[0][0]);for(var C=0,B;C<n;++C){if(E===x(D[C])){B=D[0],D[0]=D[C],D[C]=B;break}}}return D})}}function s(u,t){return t.type==="GeometryCollection"?{type:"FeatureCollection",features:t.geometries.map(function(v){return g(u,v)})}:g(u,t)}function g(v,u){var t={type:"Feature",id:u.id,properties:u.properties||{},geometry:q(v,u)};if(u.id==null){delete t.id}return t}function q(C,v){var z=c(C.transform),t=C.arcs;function u(G,H){if(H.length){H.pop()}for(var E=t[G<0?~G:G],F=0,J=E.length,I;F<J;++F){H.push(I=E[F].slice());z(I,F)}if(G<0){i(H,J)}}function A(E){E=E.slice();z(E,0);return E}function D(G){var F=[];for(var E=0,H=G.length;E<H;++E){u(G[E],F)}if(F.length<2){F.push(F[0].slice())}return F}function w(F){var E=D(F);while(E.length<4){E.push(E[0].slice())}return E}function y(E){return E.map(w)}function x(F){var E=F.type;return E==="GeometryCollection"?{type:E,geometries:F.geometries.map(x)}:E in B?{type:E,coordinates:B[E](F)}:null}var B={Point:function(E){return A(E.coordinates)},MultiPoint:function(E){return E.coordinates.map(A)},LineString:function(E){return D(E.arcs)},MultiLineString:function(E){return E.arcs.map(D)},Polygon:function(E){return y(E.arcs)},MultiPolygon:function(E){return E.arcs.map(y)}};return x(v)}function i(y,x){var w,u=y.length,v=u-x;while(v<--u){w=y[v],y[v++]=y[u],y[u]=w}}function p(u,t){var y=0,w=u.length;while(y<w){var 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C=(B+1)<<1,y=C-1,z=B,D=x[z];if(y<v&&r(x[y],D)<0){D=x[z=y]}if(C<v&&r(x[C],D)<0){D=x[z=C]}if(z===B){break}x[D._=B]=D;x[A._=B=z]=A}}return u}function c(v){if(!v){return e}var x,z,y=v.scale[0],w=v.scale[1],u=v.translate[0],t=v.translate[1];return function(A,B){if(!B){x=z=0}A[0]=(x+=A[0])*y+u;A[1]=(z+=A[1])*w+t}}function b(v){if(!v){return e}var x,z,y=v.scale[0],w=v.scale[1],u=v.translate[0],t=v.translate[1];return function(A,C){if(!C){x=z=0}var B=(A[0]-u)/y|0,D=(A[1]-t)/w|0;A[0]=B-x;A[1]=D-z;x=B;z=D}}function e(){}if(typeof define==="function"&&define.amd){define(m)}else{if(typeof module==="object"&&module.exports){module.exports=m}else{this.topojson=m}}}(); | |
this.topojson = module.exports; | |
SETRESULT(null); |
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