Created
August 25, 2011 22:03
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| // Ratio of Obese (BMI >= 30) in U.S. Adults, CDC 2008 | |
| var data = [ | |
| , .187, .198, , .133, .175, .151, , .1, .125, .171, , .172, .133, , .108, | |
| .142, .167, .201, .175, .159, .169, .177, .141, .163, .117, .182, .153, .195, | |
| .189, .134, .163, .133, .151, .145, .13, .139, .169, .164, .175, .135, .152, | |
| .169, , .132, .167, .139, .184, .159, .14, .146, .157, , .139, .183, .16, .143 | |
| ]; | |
| var color = d3.scale.linear() | |
| .domain([d3.min(data), d3.max(data)]) | |
| .range(["#aad", "#556"]); | |
| var force = d3.layout.force() | |
| .charge(0) | |
| .gravity(0) | |
| .size([960, 500]); | |
| var svg = d3.select("#chart").append("svg:svg") | |
| .attr("width", 960 + 100) | |
| .attr("height", 500 + 100) | |
| .append("svg:g") | |
| .attr("transform", "translate(50,50)"); | |
| d3.json("us-state-centroids.json", function(states) { | |
| var project = d3.geo.albersUsa(), | |
| idToNode = {}, | |
| links = [], | |
| nodes = states.features.map(function(d) { | |
| var xy = project(d.geometry.coordinates); | |
| return idToNode[d.id] = { | |
| x: xy[0], | |
| y: xy[1], | |
| gravity: {x: xy[0], y: xy[1]}, | |
| r: Math.sqrt(data[+d.id] * 5000), | |
| value: data[+d.id] | |
| }; | |
| }); | |
| force | |
| .nodes(nodes) | |
| .links(links) | |
| .start() | |
| .on("tick", function(e) { | |
| var k = e.alpha, | |
| kg = k * .02; | |
| nodes.forEach(function(a, i) { | |
| // Apply gravity forces. | |
| a.x += (a.gravity.x - a.x) * kg; | |
| a.y += (a.gravity.y - a.y) * kg; | |
| nodes.slice(i + 1).forEach(function(b) { | |
| // Check for collisions. | |
| var dx = a.x - b.x, | |
| dy = a.y - b.y, | |
| l = Math.sqrt(dx * dx + dy * dy), | |
| d = a.r + b.r; | |
| if (l < d) { | |
| l = (l - d) / l * k; | |
| dx *= l; | |
| dy *= l; | |
| a.x -= dx; | |
| a.y -= dy; | |
| b.x += dx; | |
| b.y += dy; | |
| } | |
| }); | |
| }); | |
| svg.selectAll("circle") | |
| .attr("cx", function(d) { return d.x; }) | |
| .attr("cy", function(d) { return d.y; }); | |
| }); | |
| svg.selectAll("circle") | |
| .data(nodes) | |
| .enter().append("svg:circle") | |
| .style("fill", function(d) { return color(d.value); }) | |
| .attr("cx", function(d) { return d.x; }) | |
| .attr("cy", function(d) { return d.y; }) | |
| .attr("r", function(d, i) { return d.r; }); | |
| }); | |
| setInterval(function() { | |
| console.log('ruf...'); | |
| d3.selectAll("circle") | |
| .transition() | |
| .duration(1000) | |
| .attr("r", function(d) { return Math.floor(Math.random() * (100 - 3 + 1) + 3); }); | |
| }, 5000); |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta http-equiv="Content-Type" content="text/html;charset=utf-8"> | |
| <title>Dorling Cartogram</title> | |
| <script type="text/javascript" src="http://mbostock.github.com/d3/d3.js"></script> | |
| <script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js"></script> | |
| <script type="text/javascript" src="http://mbostock.github.com/d3/d3.geo.js"></script> | |
| <script type="text/javascript" src="http://mbostock.github.com/d3/d3.geom.js"></script> | |
| <style type="text/css"> | |
| #chart { | |
| width: 960px; | |
| height: 500px; | |
| } | |
| circle { | |
| stroke: #000; | |
| stroke-width: .5px; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="chart"></div> | |
| <script type="text/javascript" src="dorling.js"></script> | |
| </body> | |
| </html> |
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| {"type":"FeatureCollection","features":[{"type":"Feature","id":"01","geometry":{"type":"Point","coordinates":[-86.766233,33.001471]},"properties":{"name":"Alabama ","population":4447100}},{"type":"Feature","id":"02","geometry":{"type":"Point","coordinates":[-148.716968,61.288254]},"properties":{"name":"Alaska ","population":626932}},{"type":"Feature","id":"04","geometry":{"type":"Point","coordinates":[-111.828711,33.373506]},"properties":{"name":"Arizona ","population":5130632}},{"type":"Feature","id":"05","geometry":{"type":"Point","coordinates":[-92.576816,35.080251]},"properties":{"name":"Arkansas ","population":2673400}},{"type":"Feature","id":"06","geometry":{"type":"Point","coordinates":[-119.355165,35.458606]},"properties":{"name":"California ","population":33871648}},{"type":"Feature","id":"08","geometry":{"type":"Point","coordinates":[-105.203628,39.500656]},"properties":{"name":"Colorado 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","population":4041769}},{"type":"Feature","id":"22","geometry":{"type":"Point","coordinates":[-91.457133,30.699270]},"properties":{"name":"Louisiana ","population":4468976}},{"type":"Feature","id":"23","geometry":{"type":"Point","coordinates":[-69.719931,44.313614]},"properties":{"name":"Maine ","population":1274923}},{"type":"Feature","id":"24","geometry":{"type":"Point","coordinates":[-76.797396,39.145653]},"properties":{"name":"Maryland ","population":5296486}},{"type":"Feature","id":"25","geometry":{"type":"Point","coordinates":[-71.363628,42.271831]},"properties":{"name":"Massachusetts ","population":6349097}},{"type":"Feature","id":"26","geometry":{"type":"Point","coordinates":[-84.170753,42.866412]},"properties":{"name":"Michigan ","population":9938444}},{"type":"Feature","id":"27","geometry":{"type":"Point","coordinates":[-93.583003,45.210782]},"properties":{"name":"Minnesota ","population":4919479}},{"type":"Feature","id":"28","geometry":{"type":"Point","coordinates":[-89.593164,32.566420]},"properties":{"name":"Mississippi ","population":2844658}},{"type":"Feature","id":"29","geometry":{"type":"Point","coordinates":[-92.153770,38.437715]},"properties":{"name":"Missouri ","population":5595211}},{"type":"Feature","id":"30","geometry":{"type":"Point","coordinates":[-111.209708,46.813302]},"properties":{"name":"Montana ","population":902195}},{"type":"Feature","id":"31","geometry":{"type":"Point","coordinates":[-97.403875,41.183753]},"properties":{"name":"Nebraska ","population":1711263}},{"type":"Feature","id":"32","geometry":{"type":"Point","coordinates":[-116.304648,37.165965]},"properties":{"name":"Nevada ","population":1998257}},{"type":"Feature","id":"33","geometry":{"type":"Point","coordinates":[-71.463342,43.153046]},"properties":{"name":"New Hampshire 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","population":754844}},{"type":"Feature","id":"47","geometry":{"type":"Point","coordinates":[-86.397772,35.795862]},"properties":{"name":"Tennessee ","population":5689283}},{"type":"Feature","id":"48","geometry":{"type":"Point","coordinates":[-97.388631,30.943149]},"properties":{"name":"Texas ","population":20851820}},{"type":"Feature","id":"49","geometry":{"type":"Point","coordinates":[-111.900160,40.438987]},"properties":{"name":"Utah ","population":2233169}},{"type":"Feature","id":"50","geometry":{"type":"Point","coordinates":[-72.814309,44.081127]},"properties":{"name":"Vermont ","population":608827}},{"type":"Feature","id":"51","geometry":{"type":"Point","coordinates":[-77.835857,37.750345]},"properties":{"name":"Virginia ","population":7078515}},{"type":"Feature","id":"53","geometry":{"type":"Point","coordinates":[-121.624501,47.341728]},"properties":{"name":"Washington ","population":5894121}},{"type":"Feature","id":"54","geometry":{"type":"Point","coordinates":[-80.820221,38.767195]},"properties":{"name":"West Virginia ","population":1808344}},{"type":"Feature","id":"55","geometry":{"type":"Point","coordinates":[-89.001006,43.728544]},"properties":{"name":"Wisconsin ","population":5363675}},{"type":"Feature","id":"56","geometry":{"type":"Point","coordinates":[-107.008835,42.675762]},"properties":{"name":"Wyoming ","population":493782}},{"type":"Feature","id":"72","geometry":{"type":"Point","coordinates":[-66.58765,18.19958]},"properties":{"code":"PR","name":"Puerto Rico","population":3808610}}]} |
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