Skip to content

Instantly share code, notes, and snippets.

@wboykinm

wboykinm/index.html

Last active December 31, 2015 07:09
Show Gist options
  • Save wboykinm/7952148 to your computer and use it in GitHub Desktop.
Save wboykinm/7952148 to your computer and use it in GitHub Desktop.
Download ZIP
Clipping multiple tilesets by country polygons
Raw
index.html
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<style>
svg {
background-color: #333;
}
.stroke {
fill: none;
stroke: #222;
stroke-width: .5;
}
</style>
</head>
<body>
<script src="http://d3js.org/d3.v3.min.js"></script>
<script src="http://d3js.org/d3.geo.tile.v0.min.js"></script>
<script src="http://d3js.org/topojson.v1.min.js"></script>
<script>
var width = 960,
height = 500;
var projection = d3.geo.mercator()
.center([-122, 48.7])
.scale(7200);
var path = d3.geo.path()
.projection(projection);
var tile = d3.geo.tile()
.scale(projection.scale() * 2 * Math.PI)
.translate(projection([0, 0]))
.zoomDelta((window.devicePixelRatio || 1) - .5);
var svg = d3.select("body").append("svg")
.attr("width", width)
.attr("height", height);
//USA!
d3.json("world-50m.json", function(error, topology) {
var amurka = topology.objects.countries.geometries.filter(function(d) { return d.id == 840; })[0];
var canada = topology.objects.countries.geometries.filter(function(d) { return d.id == 124; })[0];
var mexico = topology.objects.countries.geometries.filter(function(d) { return d.id == 484; })[0];
var cuba = topology.objects.countries.geometries.filter(function(d) { return d.id == 192; })[0];
var tiles1 = tile();
var tiles2 = tile();
var tiles3 = tile();
var tiles4 = tile();
var defs = svg.append("defs");
//USA!
defs.append("path")
.attr("id", "usa")
.datum(topojson.feature(topology, amurka))
.attr("d", path)
defs.append("clipPath")
.attr("id", "clip1")
.append("use")
.attr("xlink:href", "#usa");
svg.append("g")
.attr("clip-path", "url(#clip1)")
.selectAll("image")
.data(tiles1)
.enter().append("image")
.attr("xlink:href", function(d) { return "http://" + ["a", "b", "c", "d"][Math.random() * 4 | 0] + ".tiles.mapbox.com/v3/landplanner.ga0g9p2n/" + d[2] + "/" + d[0] + "/" + d[1] + ".png"; })
.attr("width", Math.round(tiles1.scale))
.attr("height", Math.round(tiles1.scale))
.attr("x", function(d) { return Math.round((d[0] + tiles1.translate[0]) * tiles1.scale); })
.attr("y", function(d) { return Math.round((d[1] + tiles1.translate[1]) * tiles1.scale); });
svg.append("use")
.attr("xlink:href", "#usa")
.attr("class", "stroke");
//CANADA!
defs.append("path")
.attr("id", "can")
.datum(topojson.feature(topology, canada))
.attr("class", "land can")
.attr("d", path)
defs.append("clipPath")
.attr("id", "clip2")
.append("use")
.attr("xlink:href", "#can");
svg.append("g")
.attr("clip-path", "url(#clip2)")
.selectAll("image")
.data(tiles2)
.enter().append("image")
.attr("xlink:href", function(d) { return "http://" + ["a", "b", "c", "d"][Math.random() * 4 | 0] + ".tiles.mapbox.com/v3/landplanner.ghfcid9o/" + d[2] + "/" + d[0] + "/" + d[1] + ".png"; })
.attr("width", Math.round(tiles2.scale))
.attr("height", Math.round(tiles2.scale))
.attr("x", function(d) { return Math.round((d[0] + tiles2.translate[0]) * tiles2.scale); })
.attr("y", function(d) { return Math.round((d[1] + tiles2.translate[1]) * tiles2.scale); });
svg.append("use")
.attr("xlink:href", "#can")
.attr("class", "stroke");
//Mexico!
defs.append("path")
.attr("id", "mex")
.datum(topojson.feature(topology, mexico))
.attr("class", "land mex")
.attr("d", path)
defs.append("clipPath")
.attr("id", "clip3")
.append("use")
.attr("xlink:href", "#mex");
svg.append("g")
.attr("clip-path", "url(#clip3)")
.selectAll("image")
.data(tiles3)
.enter().append("image")
.attr("xlink:href", function(d) { return "http://" + ["a", "b", "c", "d"][Math.random() * 4 | 0] + ".tiles.mapbox.com/v3/landplanner.g9caodmg/" + d[2] + "/" + d[0] + "/" + d[1] + ".png"; })
.attr("width", Math.round(tiles3.scale))
.attr("height", Math.round(tiles3.scale))
.attr("x", function(d) { return Math.round((d[0] + tiles3.translate[0]) * tiles3.scale); })
.attr("y", function(d) { return Math.round((d[1] + tiles3.translate[1]) * tiles3.scale); });
svg.append("use")
.attr("xlink:href", "#mex")
.attr("class", "stroke");
//Cuba!
defs.append("path")
.attr("id", "cub")
.datum(topojson.feature(topology, cuba))
.attr("class", "land cub")
.attr("d", path)
defs.append("clipPath")
.attr("id", "clip4")
.append("use")
.attr("xlink:href", "#cub");
svg.append("g")
.attr("clip-path", "url(#clip4)")
.selectAll("image")
.data(tiles4)
.enter().append("image")
.attr("xlink:href", function(d) { return "http://" + ["a", "b", "c", "d"][Math.random() * 4 | 0] + ".tiles.mapbox.com/v3/landplanner.gbn69pja/" + d[2] + "/" + d[0] + "/" + d[1] + ".png"; })
.attr("width", Math.round(tiles4.scale))
.attr("height", Math.round(tiles4.scale))
.attr("x", function(d) { return Math.round((d[0] + tiles4.translate[0]) * tiles4.scale); })
.attr("y", function(d) { return Math.round((d[1] + tiles4.translate[1]) * tiles4.scale); });
svg.append("use")
.attr("xlink:href", "#cub")
.attr("class", "stroke");
});
</script>
</body>
</html>
Display the source blob
Display the rendered blob
Raw
world-50m.json
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment