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March 6, 2018 02:31
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D3 v4 - Responsive Globe1
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license: mit |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<html> | |
<head> | |
<style> | |
html, body { | |
margin: 0px; | |
padding: 0px; | |
width: 100%; | |
height: 100%; | |
} | |
svg { | |
width: 99%; | |
height: 99%; | |
} | |
</style> | |
</head> | |
<body> | |
<svg></svg> | |
<script src="//unpkg.com/babel-standalone@6.26.0/babel.min.js"></script> | |
<script src="//unpkg.com/d3@4.12.2/build/d3.min.js"></script> | |
<script src="//cdnjs.cloudflare.com/ajax/libs/topojson/3.0.0/topojson.min.js"></script> | |
<script type="text/babel"> | |
/*地図を表示するステージを追加*/ | |
const stage = d3.select("svg"); | |
const seaLayer = stage.append("g"); | |
const landLayer = stage.append("g"); | |
const projection = d3.geoOrthographic() //投影法を指定 | |
const path = d3.geoPath()//geometryをsvgのパスに変換する関数 | |
d3.json("conuntries.topojson", function(json){ //地図情報の読み込み | |
const data = topojson.feature(json, json.objects.conuntries).features; //topojson->geojson変換 | |
/*プロジェクション設定*/ | |
projection | |
.rotate([0,0,0]) //x,y,z回転 | |
.clipAngle(90); //表示する角度 180度を指定すると裏側の大陸まで表示される | |
/*パスジェネレーターにプロジェクションを設定*/ | |
path.projection(projection); | |
/*海面を描画するためのパスをDOMに追加*/ | |
seaLayer.append("path") | |
.datum({type: "Sphere"}) | |
.attr("fill", "blue") | |
/*地図を表示するためのパスをDOMに追加*/ | |
landLayer | |
.selectAll("path") | |
.data(data) | |
.enter() | |
.append("path") | |
.style("background-color", "blue") | |
.attr("fill", "green") | |
.attr("stroke", "#222") | |
.on("mouseover", function(){ | |
d3.select(this).attr("fill", "red"); | |
}) | |
.on("mouseout", function(){ | |
d3.select(this).transition().duration(500).attr("fill", "green"); | |
}) | |
}); | |
/*地形を回転させる*/ | |
const draw = () => { | |
let i = 0; | |
return () => { | |
const w = stage.node().clientWidth; | |
const h = stage.node().clientHeight; | |
i = i+0.5; | |
projection | |
.rotate([i,0,0]) //rotateのx値を増やして横に回転させる | |
.scale(d3.min([w, h]) / 2) //画面サイズを元に地球儀の大きさを決定 | |
.translate([w/2, h/2]) //画面中央に表示されるように移動する | |
path.projection(projection); //path関数をアップデート | |
seaLayer.select("path").attr("d", path); //海面用パスを描画 | |
landLayer.selectAll("path").attr("d", path); //地図用パスを描画 | |
} | |
} | |
setInterval(draw(), 100); //定期的に回転させる | |
</script> | |
</body> | |
</html> |
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