Orthographic Globe on canvas (rotating)

This is a globe.

forked from mbostock's block: This Is a Globe

<!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 = 960,
    height = 600;

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);

d3.timer(function(elapsed) {
    context.clearRect(0, 0, width, height);

projection.rotate([velocity * elapsed, 0]);
    context.beginPath();
    path(land);
    context.fill();
    context.beginPath();
    
   // context.arc(width / 2, height / 2, radius, 0, 2 * Math.PI, true);
   // context.lineWidth = .5;
   // context.stroke();
  });
});

d3.select(self.frameElement).style("height", height + "px");

</script>

https://d3js.org/d3.v4.min.js

https://d3js.org/topojson.v1.min.js