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@Fil Fil/.block

Last active May 16, 2017
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Why Reykjavík?
license: gpl-3.0
<!DOCTYPE html>
<meta charset="utf-8">
<body>
<script src="https://d3js.org/d3.v4.min.js"></script>
<script src="https://d3js.org/topojson.v2.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);
var zoom = d3
.zoom()
.on("zoom start end", zoomed)
.scaleExtent([0.7, 5])
.translateExtent([[0,0], [width, height]]);
canvas.call(zoom);
var init_scale = projection.scale(),
init_translate = projection.translate();
function zoomed() {
var t = d3.event.transform;
projection.scale(init_scale * t.k)
.translate(t.apply(init_translate));
}
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);
var plane = {
"type": "Feature",
"properties": {},
"geometry": {
"type": "LineString",
"coordinates": [
[
-121.28906250000001,
35.17380831799959
],
[
-18.984375,
64.32087157990324
],
[
1.7578125,
47.754097979680026
]
]
}
}
d3.timer(function(elapsed) {
context.clearRect(0, 0, width, height);
projection.rotate([velocity * elapsed, -40]);
context.beginPath();
path(land);
context.fill();
context.beginPath();
path(plane);
context.strokeStyle = 'green';
context.stroke();
context.strokeStyle = 'black';
context.beginPath();
path({type:"Sphere"});
context.lineWidth = 2.5;
context.stroke();
});
});
d3.select(self.frameElement).style("height", height + "px");
</script>
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