Spinning globe.
From D3 in Depth book by Peter Cook.
license: gpl-3.0 | |
height: 440 | |
border: no |
Spinning globe.
From D3 in Depth book by Peter Cook.
<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<head> | |
<title>Geo (spinning))</title> | |
</head> | |
<style> | |
body { | |
font-family: "Helvetica Neue", Helvetica, sans-serif; | |
font-size: 14px; | |
color: #333; | |
} | |
</style> | |
<body> | |
<div id="content"> | |
<canvas width="800" height="400"></canvas> | |
</div> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.2.2/d3.min.js"></script> | |
<script> | |
var geojson = {} | |
var context = d3.select('#content canvas') | |
.node() | |
.getContext('2d'); | |
var projection = d3.geoOrthographic() | |
.scale(300); | |
var geoGenerator = d3.geoPath() | |
.projection(projection) | |
.pointRadius(4) | |
.context(context); | |
var yaw = 300; | |
function update() { | |
projection.rotate([yaw, -45]) | |
context.clearRect(0, 0, 800, 600); | |
context.lineWidth = 0.5; | |
context.strokeStyle = '#333'; | |
context.beginPath(); | |
geoGenerator({type: 'FeatureCollection', features: geojson.features}) | |
context.stroke(); | |
// Graticule | |
var graticule = d3.geoGraticule(); | |
context.beginPath(); | |
context.strokeStyle = '#ccc'; | |
geoGenerator(graticule()); | |
context.stroke(); | |
yaw -= 0.2 | |
} | |
// REQUEST DATA | |
d3.json('https://gist.githubusercontent.com/d3indepth/f28e1c3a99ea6d84986f35ac8646fac7/raw/c58cede8dab4673c91a3db702d50f7447b373d98/ne_110m_land.json', function(err, json) { | |
geojson = json; | |
window.setInterval(update, 100); | |
}) | |
</script> | |
</body> | |
</html> |
�PNG | |