Jason Davies’ implementation of the Chamberlin trimetric projection is available as d3.geo.chamberlin in the extended geographic projections plugin.
Last active
February 9, 2016 02:05
-
-
Save mbostock/5625053 to your computer and use it in GitHub Desktop.
Chamberlin Trimetric
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| license: gpl-3.0 |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| background: #fcfcfa; | |
| } | |
| .stroke { | |
| fill: none; | |
| stroke: #000; | |
| stroke-width: 3px; | |
| } | |
| .fill { | |
| fill: #fff; | |
| } | |
| .graticule { | |
| fill: none; | |
| stroke: #777; | |
| stroke-width: .5px; | |
| stroke-opacity: .5 | |
| } | |
| .land { | |
| fill: #222; | |
| } | |
| .boundary { | |
| fill: none; | |
| stroke: #fff; | |
| stroke-width: .5px; | |
| } | |
| </style> | |
| <body> | |
| <script src="//d3js.org/d3.v3.min.js"></script> | |
| <script src="//d3js.org/d3.geo.projection.v0.min.js"></script> | |
| <script src="//d3js.org/topojson.v1.min.js"></script> | |
| <script> | |
| var width = 960, | |
| height = 900; | |
| var projection = d3.geo.chamberlin() | |
| .points([[0, 22], [45, 22], [22.5, -22]]) | |
| .center([-2.5, -1.5]) | |
| .scale(510) | |
| .translate([width / 2, height / 2]) | |
| .precision(.1) | |
| .clipAngle(70); | |
| var path = d3.geo.path() | |
| .projection(projection); | |
| var graticule = d3.geo.graticule() | |
| .extent([[-30, -40], [70, 50]]); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var defs = svg.append("defs"); | |
| defs.append("path") | |
| .attr("id", "outline") | |
| .datum(graticule.outline) | |
| .attr("d", path); | |
| defs.append("clipPath") | |
| .attr("id", "clip") | |
| .append("use") | |
| .attr("xlink:href", "#outline"); | |
| svg.append("use") | |
| .attr("class", "stroke") | |
| .attr("xlink:href", "#outline"); | |
| svg.append("use") | |
| .attr("class", "fill") | |
| .attr("xlink:href", "#outline"); | |
| svg.append("path") | |
| .datum(graticule) | |
| .attr("class", "graticule") | |
| .attr("d", path); | |
| d3.json("/mbostock/raw/4090846/world-50m.json", function(error, world) { | |
| if (error) throw error; | |
| var g = svg.insert("g", ".graticule") | |
| .attr("clip-path", "url(#clip)"); | |
| g.append("path") | |
| .datum(topojson.feature(world, world.objects.land)) | |
| .attr("class", "land") | |
| .attr("d", path); | |
| g.append("path") | |
| .datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; })) | |
| .attr("class", "boundary") | |
| .attr("d", path); | |
| }); | |
| d3.select(self.frameElement).style("height", height + "px"); | |
| </script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment