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@abenrob
Last active August 29, 2015 14:18
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Rotating map - equirectangular
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<style>
body {
background-color: white;
}
svg {
border: 2px solid black;
background-color: #a4bac7;
}
.land {
fill: #d7c7ad;
stroke: #766951;
}
.boundary {
fill: none;
stroke: #a5967e;
}
.graticule {
fill: none;
stroke: #fff;
stroke-width: .5px;
}
.graticule :nth-child(2n) {
stroke-dasharray: 2,2;
}
</style>
</head>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://d3js.org/topojson.v0.min.js"></script>
<script src="https://cdn.rawgit.com/abenrob/ab3de11f64071ddc4f68/raw/20a9a6de1e810df931ceb7706e6265c57be90cd9/worldtopo.js"></script>
<script>
var width = 960,
height = 480;
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
var projection = d3.geo.equirectangular()
.scale(153)
.translate([width/2,height/2])
var path = d3.geo.path()
.projection(projection);
svg.append("path")
.datum(topojson.object(worldtopo, worldtopo.objects.land))
.attr("class", "land")
.attr("d", path);
svg.append("path")
.datum(topojson.mesh(worldtopo, worldtopo.objects.countries, function(a, b) { return a.id !== b.id; }))
.attr("class", "boundary")
.attr("d", path);
var graticule = d3.geo.graticule();
svg.append("g")
.selectAll("path")
.data(graticule.lines)
.enter().append("path")
.attr("d", path)
.attr("class", "graticule");
var lat = 0;
setInterval(function(){
lat = lat +.25
projection.rotate([lat,0]);
svg.selectAll(".land")
.attr("d", path);
svg.selectAll(".boundary")
.attr("d", path);
svg.selectAll(".graticule")
.attr("d", path);
},50);
</script>
</body>
</html>
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