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December 16, 2015 20:39
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Binify example
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| .counties { | |
| fill: #900; | |
| } | |
| .states { | |
| fill: none; | |
| stroke: #ccc; | |
| stroke-linejoin: round; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script src="http://d3js.org/queue.v1.min.js"></script> | |
| <script src="http://d3js.org/topojson.v1.min.js"></script> | |
| <script> | |
| var width = 600, | |
| height = 500; | |
| var projection = d3.geo.albersUsa(); | |
| var path = d3.geo.path() | |
| .projection(projection); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var us, hexagons, remaining = 2; | |
| d3.json("/d/4090846/us.json", function(json) { | |
| us = json; | |
| if (!--remaining) ready(us, hexagons); | |
| }); | |
| d3.json("coordinates.json", function(json) { | |
| hexagons = json; | |
| if (!--remaining) ready(us, hexagons); | |
| }); | |
| function ready(us, hexagons) { | |
| var bins = topojson.feature(hexagons, hexagons.objects.binned).features; | |
| var max = d3.max(bins, function(d) { return d.properties.COUNT; }); | |
| svg.append("g") | |
| .attr("transform", "scale(0.6,0.6)") | |
| .attr("class", "counties") | |
| .selectAll("path") | |
| .data(bins) | |
| .enter().append("path") | |
| .style("fill-opacity", function(d) { return Math.sqrt(d.properties.COUNT / max); }) | |
| .attr("d", path); | |
| svg.append("path") | |
| .datum(topojson.mesh(us, us.objects.states)) | |
| .attr("class", "states") | |
| .attr("d", path) | |
| .attr("transform", "scale(0.6,0.6)"); | |
| } | |
| </script> | |
| </body> | |
| </html> |
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