Minimal force layout example.
From D3 in Depth book by Peter Cook.
Last active
May 1, 2020 15:53
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Minimal force layout example
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| license: gpl-3.0 | |
| height: 320 | |
| border: no |
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.
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <head> | |
| <title>Force layout</title> | |
| </head> | |
| <style> | |
| circle { | |
| fill: cadetblue; | |
| } | |
| </style> | |
| <body> | |
| <div id="content"> | |
| <svg width="300" height="300"> | |
| </svg> | |
| </div> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.2.2/d3.min.js"></script> | |
| <script> | |
| var width = 300, height = 300 | |
| var nodes = [{}, {}, {}, {}, {}] | |
| var simulation = d3.forceSimulation(nodes) | |
| .force('charge', d3.forceManyBody().strength(-20)) | |
| .force('center', d3.forceCenter(width / 2, height / 2)) | |
| .on('tick', ticked); | |
| function ticked() { | |
| var u = d3.select('svg') | |
| .selectAll('circle') | |
| .data(nodes) | |
| u.enter() | |
| .append('circle') | |
| .attr('r', 5) | |
| .merge(u) | |
| .attr('cx', function(d) { | |
| return d.x | |
| }) | |
| .attr('cy', function(d) { | |
| return d.y | |
| }) | |
| u.exit().remove() | |
| } | |
| </script> | |
| </body> | |
| </html> |
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