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Earth from above
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license: mit |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<body> | |
<script src="//d3js.org/d3.v4.min.js"></script> | |
<script src="//d3js.org/topojson.v1.min.js"></script> | |
<script> | |
var width = 500, | |
height = 500; | |
var radius = height / 2 - 5, | |
scale = radius, | |
velocity = .02; | |
var projection = d3.geoOrthographic() | |
.translate([width / 2, height / 2]) | |
.scale(scale) | |
.clipAngle(90); | |
var canvas = d3.select("body").append("canvas") | |
.attr("width", width) | |
.attr("height", height); | |
var context = canvas.node().getContext("2d"); | |
var path = d3.geoPath() | |
.projection(projection) | |
.context(context); | |
d3.json("https://gist.githubusercontent.com/mbostock/4090846/raw/d534aba169207548a8a3d670c9c2cc719ff05c47/world-110m.json", function(error, world) { | |
if (error) throw error; | |
var land = topojson.feature(world, world.objects.land); | |
projection.rotate([0, -90, 0]); | |
context.beginPath(); | |
path(land); | |
context.fill(); | |
context.beginPath(); | |
context.arc(width / 2, height / 2, radius, 0, 2 * Math.PI, true); | |
context.lineWidth = 2.5; | |
context.stroke(); | |
}); | |
d3.select(self.frameElement).style("height", height + "px"); | |
</script> |
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