D3 Examples - Icosahedron

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<!DOCTYPE html>
<meta charset="utf-8">
<style>
​
path {
  fill: none;
  stroke: #000;
}
​
circle {
  fill: none;
  stroke: #000;
  stroke-width: 3px;
}
​
</style>
<body>
<script src="https://d3js.org/d3.v2.min.js?2.9.6"></script>
<script src="geodesic.js"></script>
<script>
​
var width = 300,
    height = 300;
​
var origin = [0, 0],
    velocity = [-.01, .01],
    t0 = Date.now();
​
var projection = d3.geo.azimuthal()
    .mode("orthographic")
    .origin(origin)
    .scale(120);
​
var circle = d3.geo.circle()
    .origin(origin);
​
var path = d3.geo.path()
    .projection(projection);
​
var svg = d3.select("body").append("svg")
    .attr("width", width)
    .attr("height", height)
    .append("g")
    .attr("transform", "translate(-350, -100)");
​
svg.append("path")
    .datum(d3.geodesic.multipolygon(1));
​
svg.append("circle")
    .attr("transform", "translate(" + projection(origin) + ")")
    .attr("r", 120);
​
d3.timer(function() {
  var t = Date.now() - t0,
      o = [origin[0] + t * velocity[0], origin[1] + t * velocity[1]];
  projection.origin(o);
  circle.origin(o);
  svg.selectAll("path").attr("d", function(d) { return path(circle.clip(d)); });
});
​
</script>
​
    