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地球儀 - エンボス風
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
html, body { | |
margin: 0px; | |
padding: 0px; | |
} | |
</style> | |
<body> | |
<svg width="960" height="500"> | |
<defs> | |
<filter id="MyFilter" filterUnits="userSpaceOnUse" x="0" y="0" width="960" height="500"> | |
<feGaussianBlur in="SourceAlpha" stdDeviation="2" result="blur" /> | |
<feOffset in="blur" dx="4" dy="4" result="offsetBlur" /> | |
<feSpecularLighting in="blur" surfaceScale="5" specularConstant=".75" specularExponent="20" lighting-color="#fff" result="specOut"> | |
<fePointLight x="-5000" y="-10000" z="20000" /> | |
</feSpecularLighting> | |
</filter> | |
</defs> | |
<rect x="0" y="0" width="960" height="600" fill="#cccccc" /> | |
</svg> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.3/d3.js"></script> | |
<script> | |
(function(){ | |
"use strict"; | |
var w = 960; | |
var h = 500; | |
var svg = d3.select("svg").attr("width", w).attr("height", h); | |
var projection = d3.geo.orthographic() | |
.scale(245) | |
.rotate([0,0,0]) | |
.translate([w / 2, h / 2]) | |
.clipAngle(90); | |
var path = d3.geo.path().projection(projection); | |
d3.json("https://gist.githubusercontent.com/shimizu/97c156f7f9137586f784/raw/4be1053346fa88d448c2290c49689634c8102b0a/Landmasses.geojson", function(geojson){ | |
var stage = svg.append("svg:g").attr("filter", "url(#MyFilter)"); | |
var map = stage.append("svg:path") | |
.attr({ | |
"d":function(){ return path(geojson)}, | |
"fill":"none", | |
"stroke-width":6, | |
"stroke":"white", | |
}); | |
// Reference from http://bl.ocks.org/mbostock/6738360 | |
var m0, o0; | |
var update = function(){ | |
map.attr("d", function(){ return path(geojson)}); | |
} | |
var mousedown = function () { | |
m0 = [d3.event.pageX, d3.event.pageY]; | |
o0 = projection.rotate(); | |
d3.event.preventDefault(); | |
} | |
var mousemove = function () { | |
if (m0) { | |
var m1 = [d3.event.pageX, d3.event.pageY]; | |
var o1 = [o0[0] + (m1[0] - m0[0]) / 6, o0[1] + (m0[1] - m1[1]) / 6]; | |
o1[1] = o1[1] > 30 ? 30 : | |
o1[1] < -30 ? -30 : | |
o1[1]; | |
projection.rotate(o1); | |
update(); | |
} | |
} | |
var mouseup = function () { | |
if (m0) { | |
mousemove(); | |
m0 = null; | |
} | |
} | |
d3.select(window) | |
.on("mousemove", mousemove) | |
.on("mouseup", mouseup); | |
svg.on("mousedown", mousedown); | |
}); | |
})(); | |
</script> | |
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