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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<body> | |
<script src="../../d3.js"></script> | |
<script src="../../topojson.js"></script> | |
<style> | |
body{ | |
margin: 0; | |
} | |
</style> | |
<script> | |
// originally from: http://bl.ocks.org/mbostock/3734273 | |
// width = window.innerWidth, height = window.innerHeight | |
var width = 1050, height = 1500 | |
var velocity = .01, | |
t0 = Date.now(); | |
var projection = d3.geo.equirectangular() | |
.translate([width/2, height/2]) | |
.scale(500) | |
var canvas = d3.select("body").append("canvas") | |
.attr("width", width) | |
.attr("height", height); | |
var context = canvas.node().getContext("2d"); | |
var path = d3.geo.path() | |
.projection(projection) | |
.context(context); | |
d3.json("/d/4090846/world-110m.json", function(error, world) { | |
var land = topojson.feature(world, world.objects.land); | |
window.step = function() { | |
var t = Date.now() - t0; | |
projection.rotate([0, velocity * t]); | |
context.clearRect(0, 0, width, height); | |
context.beginPath(); | |
path(land); | |
context.fill(); | |
} | |
window.is_ready = true | |
}); | |
</script> |
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