copy of http://mbostock.github.com/d3/talk/20110921/quantitative-foci.html
Radial foci is shown in gist 3125600.
Created
July 15, 2012 12:46
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d3.js: quantitative foci
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| # Editor backup files | |
| *.bak | |
| *~ |
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| <!DOCTYPE html> | |
| <html> | |
| <meta http-equiv="Content-Type" content="text/html;charset=UTF-8"> | |
| <head> | |
| <title>Force Layouts - Quantitative Foci</title> | |
| <script src="http://d3js.org/d3.v2.js"></script> | |
| <link type="text/css" rel="stylesheet" href="style000.css"> | |
| <style type="text/css"> | |
| circle { | |
| stroke: #fff; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <div id="body"> | |
| <div id="chart"></div> | |
| <div id="header">quantitative foci</div> | |
| </div> | |
| <script type="text/javascript"> | |
| var w = 960, | |
| h = 500; | |
| var color = d3.scale.linear() | |
| .domain([h - 100, 100]) | |
| .range(["hsl(180,100%,10%)", "hsl(210,100%,90%)"]) | |
| .interpolate(d3.interpolateHsl); | |
| var force = d3.layout.force() | |
| .gravity(0) | |
| .charge(0) | |
| .size([w, h]); | |
| var nodes = force.nodes(); | |
| var svg = d3.select("#chart").append("svg:svg") | |
| .attr("width", w) | |
| .attr("height", h); | |
| svg.append("svg:rect") | |
| .attr("width", w) | |
| .attr("height", h); | |
| force.on("tick", function(e) { | |
| var k = e.alpha * .1; | |
| nodes.forEach(function(node) { | |
| node.y += (node.cy - node.y) * k; | |
| }); | |
| svg.selectAll("circle") | |
| .attr("cx", function(d) { return d.x; }) | |
| .attr("cy", function(d) { return d.y; }); | |
| }); | |
| var p0; | |
| svg.on("mousemove", function() { | |
| var p1 = d3.svg.mouse(this); | |
| var node = { | |
| x: p1[0], | |
| y: p1[1], | |
| px: (p0 || (p0 = p1))[0], | |
| py: p0[1], | |
| cy: Math.random() * (h - 200) + 100 | |
| }; | |
| p0 = p1; | |
| svg.append("svg:circle") | |
| .data([node]) | |
| .attr("cx", function(d) { return d.x; }) | |
| .attr("cy", function(d) { return d.y; }) | |
| .attr("r", 15) | |
| .style("fill", function(d) { return color(d.cy); }) | |
| .transition() | |
| .delay(3000) | |
| .attr("r", 1e-6) | |
| .each("end", function() { nodes.shift(); }) | |
| .remove(); | |
| nodes.push(node); | |
| force.start(); | |
| }); | |
| </script> | |
| </body> | |
| </html> | |
| <!-- This document saved from http://mbostock.github.com/d3/talk/20110921/quantitative-foci.html --> |
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| body { | |
| overflow: hidden; | |
| margin: 0; | |
| font: 14px "Helvetica Neue"; | |
| } | |
| svg { | |
| width: 1280px; | |
| height: 800px; | |
| } | |
| #chart, #header { | |
| position: absolute; | |
| top: 0; | |
| } | |
| #header { | |
| z-index: 1; | |
| display: block; | |
| } | |
| #header { | |
| top: 80px; | |
| left: 140px; | |
| font: 300 36px "Helvetica Neue"; | |
| } | |
| rect { | |
| fill: none; | |
| pointer-events: all; | |
| } | |
| pre { | |
| font-size: 18px; | |
| } | |
| line { | |
| stroke: #000; | |
| stroke-width: 1.5px; | |
| } | |
| .string, .regexp { | |
| color: #f39; | |
| } | |
| .keyword { | |
| color: #00c; | |
| } | |
| .comment { | |
| color: #555; | |
| } | |
| .number { | |
| color: #369; | |
| } | |
| .class, .special { | |
| color: #1181B8; | |
| } |
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