Created
November 14, 2012 09:34
-
-
Save booo/4071214 to your computer and use it in GitHub Desktop.
This file contains hidden or 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> | |
| .node { | |
| stroke: #fff; | |
| stroke-width: 1.5px; | |
| } | |
| .link { | |
| stroke: #999; | |
| stroke-opacity: .6; | |
| } | |
| </style> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script> | |
| //original code is/was part of the d3.js examples | |
| var generateChordGraph = function generateChordGraph(n, beta) { | |
| var graph = { nodes: [], links: [] }; | |
| for(var i = 0; i < n; i++) { | |
| graph.nodes.push({name: i, group: 1, fixed: true}); | |
| graph.links.push({ | |
| source: i, | |
| target: (i+1) % n, | |
| value: i + "->" + (i+1) | |
| }); | |
| if(i<n/2) { | |
| for(var j = 2; j < n; j = j*2) { | |
| graph.links.push({ | |
| source: i, | |
| target: (i+j) % n, | |
| value: i + " -> " + (i+j) % n | |
| }); | |
| } | |
| } | |
| } | |
| return graph; | |
| } | |
| var graph = generateChordGraph(16); | |
| var width = 960, | |
| height = 500; | |
| var color = d3.scale.category20(); | |
| force = d3.layout.force() | |
| .charge(-120) | |
| .linkDistance(30) | |
| .size([width, height]); | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| var n = graph.nodes.length; | |
| var foo = 2*Math.PI / n; | |
| graph.nodes.forEach(function(d, i) { | |
| console.log(i, i*foo, foo, n); | |
| d.x = 500 + 100 * Math.cos(i*foo); | |
| d.y = 200 + 100 * Math.sin(i*foo); | |
| }); | |
| force.nodes(graph.nodes) | |
| .links(graph.links) | |
| .start(); | |
| var link = svg.selectAll("line.link") | |
| .data(graph.links) | |
| .enter().append("line") | |
| .attr("class", "link") | |
| .style("stroke-width", function(d) { return Math.sqrt(d.value); }); | |
| link.append("title").text(function(d){ return d.value; }); | |
| var node = svg.selectAll("circle.node") | |
| .data(graph.nodes) | |
| .enter().append("circle") | |
| .attr("class", "node") | |
| .attr("r", 5) | |
| .style("fill", function(d) { return color(d.group); }) | |
| .call(force.drag); | |
| node.append("title") | |
| .text(function(d) { return d.name; }); | |
| force.on("tick", function() { | |
| link.attr("x1", function(d) { return d.source.x; }) | |
| .attr("y1", function(d) { return d.source.y; }) | |
| .attr("x2", function(d) { return d.target.x; }) | |
| .attr("y2", function(d) { return d.target.y; }); | |
| node.attr("cx", function(d) { return d.x; }) | |
| .attr("cy", function(d) { return d.y; }); | |
| }); | |
| </script> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment