This is the code for Chapter 11, Figure 9 from D3.js in Action drawing a force-directed network visualization with 3000 nodes and 1000 edges.
Last active
March 17, 2016 02:27
-
-
Save emeeks/f301b72b3e1f2cfc9bc8 to your computer and use it in GitHub Desktop.
Ch. 11, Fig. 9 - D3.js in Action
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
| <html> | |
| <head> | |
| <title>D3 in Action Chapter 11 - Example 5</title> | |
| <meta charset="utf-8" /> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script> | |
| </head> | |
| <style> | |
| body, html { | |
| margin: 0; | |
| } | |
| canvas { | |
| position: absolute; | |
| width: 500px; | |
| height: 500px; | |
| } | |
| svg { | |
| position: absolute; | |
| width:500px; | |
| height:500px; | |
| } | |
| path.country { | |
| fill: gray; | |
| stroke-width: 1; | |
| stroke: black; | |
| opacity: .5; | |
| } | |
| path.sample { | |
| stroke: black; | |
| stroke-width: 1px; | |
| fill: red; | |
| fill-opacity: .5; | |
| } | |
| line.link { | |
| stroke-width: 1px; | |
| stroke: black; | |
| stroke-opacity: .5; | |
| } | |
| circle.node { | |
| fill: red; | |
| stroke: white; | |
| stroke-width: 1px; | |
| } | |
| circle.xy { | |
| fill: pink; | |
| stroke: black; | |
| stroke-width: 1px; | |
| } | |
| </style> | |
| <body> | |
| <canvas height="500" width="500"></canvas> | |
| <div id="viz"> | |
| <svg></svg> | |
| </div> | |
| </body> | |
| <footer> | |
| <script> | |
| var linkScale = d3.scale.linear().domain([0,.9,.95,1]).range([0,10,100,1000]); | |
| sampleNodes = d3.range(3000).map(function(d) { | |
| var datapoint = {}; | |
| datapoint.id = "Sample Node " + d; | |
| return datapoint; | |
| }) | |
| sampleLinks = []; | |
| var y = 0; | |
| while (y < 1000) { | |
| var randomSource = Math.floor(Math.random() * 1000); | |
| var randomTarget = Math.floor(linkScale(Math.random())); | |
| var linkObject = {source: sampleNodes[randomSource], target: sampleNodes[randomTarget]} | |
| if (randomSource != randomTarget) { | |
| sampleLinks.push(linkObject); | |
| } | |
| y++; | |
| } | |
| force = d3.layout.force() | |
| .size([500,500]) | |
| .gravity(.5) | |
| .nodes(sampleNodes) | |
| .links(sampleLinks) | |
| .on("tick", forceTick); | |
| d3.select("svg").selectAll("line.link") | |
| .data(sampleLinks) | |
| .enter() | |
| .append("line") | |
| .attr("class", "link") | |
| .style("stroke-width", "1px") | |
| .style("stroke", "black") | |
| .style("stroke-opacity", .5); | |
| d3.select("svg").selectAll("circle.node") | |
| .data(sampleNodes) | |
| .enter() | |
| .append("circle") | |
| .attr("r", 3) | |
| .style("fill", "red") | |
| .attr("class", "node") | |
| .style("stroke", "white") | |
| .style("stroke-width", "1px"); | |
| force.start(); | |
| function forceTick() { | |
| d3.selectAll("line.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}); | |
| d3.selectAll("circle.node") | |
| .attr("cx", function(d) {return d.x}) | |
| .attr("cy", function(d) {return d.y}); | |
| } | |
| </script> | |
| </footer> | |
| </html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment