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d3

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A small, free JavaScript library for manipulating documents based on data.

mbostock.github.com/d3/

mbostock/d3

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<!DOCTYPE html> <html> <head> <meta http-equiv="content-type" content="text/html;charset=utf-8"> <title>d3.js ~ Circle Packing</title> <script type="text/javascript" src="../d3.js?1.12.0"></script> <style type="text/css"> @import url("../style.css?1.10.0"); @import url("../syntax.css?1.6.0"); </style> </head> <body> <div class="body"> <div class="content"> <div class="topbar"> <a href="../">Overview</a> <b><a href="../ex/">Examples</a></b> <a href="../api/">Documentation</a> <a href="http://github.com/mbostock/d3/archives/master">Download</a> </div> <div class="sidebar"> <h1>d3.js</h1> </div> <h1 id='circle_packing'>Circle Packing</h1> <div class='gallery' id='chart'> </div><link href='pack.css?1' rel='stylesheet' type='text/css' /><script src='../d3.layout.js?1.12.0' type='text/javascript'> </script><script src='pack.js' type='text/javascript'> </script> <p>Implementation based on work by <a href='http://jheer.org/'>Jeff Heer</a>. Data shows the <a href='http://flare.prefuse.org/'>Flare</a> class hierarchy, also courtesy Jeff Heer.</p> <h3 id='source_code'>Source Code</h3> <div class='highlight'><pre><code class='js'><span class='lineno'> 1</span> <span class='kd'>var</span> <span class='nx'>w</span> <span class='o'>=</span> <span class='mi'>960</span><span class='p'>,</span> <span class='lineno'> 2</span> <span class='nx'>h</span> <span class='o'>=</span> <span class='mi'>960</span><span class='p'>,</span> <span class='lineno'> 3</span> <span class='nx'>format</span> <span class='o'>=</span> <span class='nx'>d3</span><span class='p'>.</span><span class='nx'>format</span><span class='p'>(</span><span class='s2'>&quot;,d&quot;</span><span class='p'>);</span> <span class='lineno'> 4</span> <span class='lineno'> 5</span> <span class='kd'>var</span> <span class='nx'>pack</span> <span class='o'>=</span> <span class='nx'>d3</span><span class='p'>.</span><span class='nx'>layout</span><span class='p'>.</span><span class='nx'>pack</span><span class='p'>()</span> <span class='lineno'> 6</span> <span class='p'>.</span><span class='nx'>size</span><span class='p'>([</span><span class='nx'>w</span> <span class='o'>-</span> <span class='mi'>4</span><span class='p'>,</span> <span class='nx'>h</span> <span class='o'>-</span> <span class='mi'>4</span><span class='p'>])</span> <span class='lineno'> 7</span> <span class='p'>.</span><span class='nx'>children</span><span class='p'>(</span><span class='kd'>function</span><span class='p'>(</span><span class='nx'>d</span><span class='p'>)</span> <span class='p'>{</span> <span class='k'>return</span> <span class='nb'>isNaN</span><span class='p'>(</span><span class='nx'>d</span><span class='p'>.</span><span class='nx'>value</span><span class='p'>)</span> <span class='o'>?</span> <span class='nx'>d3</span><span class='p'>.</span><span class='nx'>entries</span><span class='p'>(</span><span class='nx'>d</span><span class='p'>.</span><span class='nx'>value</span><span class='p'>)</span> <span class='o'>:</span> <span class='kc'>null</span><span class='p'>;</span> <span class='p'>});</span> <span class='lineno'> 8</span> <span class='lineno'> 9</span> <span class='kd'>var</span> <span class='nx'>vis</span> <span class='o'>=</span> <span class='nx'>d3</span><span class='p'>.</span><span class='nx'>select</span><span class='p'>(</span><span class='s2'>&quot;#chart&quot;</span><span class='p'>).</span><span class='nx'>append</span><span class='p'>(</span><span class='s2'>&quot;svg:svg&quot;</span><span class='p'>)</span> <span class='lineno'>10</span> <span class='p'>.</span><span class='nx'>attr</span><span class='p'>(</span><span class='s2'>&quot;width&quot;</span><span class='p'>,</span> <span class='nx'>w</span><span class='p'>)</span> <span class='lineno'>11</span> <span class='p'>.</span><span class='nx'>attr</span><span class='p'>(</span><span class='s2'>&quot;height&quot;</span><span class='p'>,</span> <span class='nx'>h</span><span class='p'>)</span> <span class='lineno'>12</span> <span class='p'>.</span><span class='nx'>attr</span><span class='p'>(</span><span class='s2'>&quot;class&quot;</span><span class='p'>,</span> <span class='s2'>&quot;pack&quot;</span><span class='p'>)</span> <span class='lineno'>13</span> <span class='p'>.</span><span class='nx'>append</span><span class='p'>(</span><span class='s2'>&quot;svg:g&quot;</span><span class='p'>)</span> <span class='lineno'>14</span> <span class='p'>.</span><span class='nx'>attr</span><span class='p'>(</span><span class='s2'>&quot;transform&quot;</span><span class='p'>,</span> <span class='s2'>&quot;translate(2, 2)&quot;</span><span class='p'>);</span> <span class='lineno'>15</span> <span class='lineno'>16</span> <span class='nx'>d3</span><span class='p'>.</span><span class='nx'>json</span><span class='p'>(</span><span class='s2'>&quot;flare.json&quot;</span><span class='p'>,</span> <span class='kd'>function</span><span class='p'>(</span><span class='nx'>json</span><span class='p'>)</span> <span class='p'>{</span> <span class='lineno'>17</span> <span class='kd'>var</span> <span class='nx'>node</span> <span class='o'>=</span> <span class='nx'>vis</span><span class='p'>.</span><span class='nx'>data</span><span class='p'>(</span><span class='nx'>d3</span><span class='p'>.</span><span class='nx'>entries</span><span class='p'>(</span><span class='nx'>json</span><span class='p'>)).</span><span class='nx'>selectAll</span><span class='p'>(</span><span class='s2'>&quot;g.node&quot;</span><span class='p'>)</span> <span class='lineno'>18</span> <span class='p'>.</span><span class='nx'>data</span><span class='p'>(</span><span class='nx'>pack</span><span class='p'>)</span> <span class='lineno'>19</span> <span class='p'>.</span><span class='nx'>enter</span><span class='p'>().</span><span class='nx'>append</span><span class='p'>(</span><span class='s2'>&quot;svg:g&quot;</span><span class='p'>)</span> <span class='lineno'>20</span> <span class='p'>.</span><span class='nx'>attr</span><span class='p'>(</span><span class='s2'>&quot;class&quot;</span><span class='p'>,</span> <span class='kd'>function</span><span class='p'>(</span><span class='nx'>d</span><span class='p'>)</span> <span class='p'>{</span> <span class='k'>return</span> <span class='nx'>d</span><span class='p'>.</span><span class='nx'>children</span> <span class='o'>?</span> <span class='s2'>&quot;node&quot;</span> <span class='o'>:</span> <span class='s2'>&quot;leaf node&quot;</span><span class='p'>;</span> <span class='p'>})</span> <span class='lineno'>21</span> <span class='p'>.</span><span class='nx'>attr</span><span class='p'>(</span><span class='s2'>&quot;transform&quot;</span><span class='p'>,</span> <span class='kd'>function</span><span class='p'>(</span><span class='nx'>d</span><span class='p'>)</span> <span class='p'>{</span> <span class='k'>return</span> <span class='s2'>&quot;translate(&quot;</span> <span class='o'>+</span> <span class='nx'>d</span><span class='p'>.</span><span class='nx'>x</span> <span class='o'>+</span> <span class='s2'>&quot;,&quot;</span> <span class='o'>+</span> <span class='nx'>d</span><span class='p'>.</span><span class='nx'>y</span> <span class='o'>+</span> <span class='s2'>&quot;)&quot;</span><span class='p'>;</span> <span class='p'>});</span> <span class='lineno'>22</span> <span class='lineno'>23</span> <span class='nx'>node</span><span class='p'>.</span><span class='nx'>append</span><span class='p'>(</span><span class='s2'>&quot;svg:title&quot;</span><span class='p'>)</span> <span class='lineno'>24</span> <span class='p'>.</span><span class='nx'>text</span><span class='p'>(</span><span class='kd'>function</span><span class='p'>(</span><span class='nx'>d</span><span class='p'>)</span> <span class='p'>{</span> <span class='k'>return</span> <span class='nx'>d</span><span class='p'>.</span><span class='nx'>data</span><span class='p'>.</span><span class='nx'>key</span> <span class='o'>+</span> <span class='p'>(</span><span class='nx'>d</span><span class='p'>.</span><span class='nx'>children</span> <span class='o'>?</span> <span class='s2'>&quot;&quot;</span> <span class='o'>:</span> <span class='s2'>&quot;: &quot;</span> <span class='o'>+</span> <span class='nx'>format</span><span class='p'>(</span><span class='nx'>d</span><span class='p'>.</span><span class='nx'>value</span><span class='p'>));</span> <span class='p'>});</span> <span class='lineno'>25</span> <span class='lineno'>26</span> <span class='nx'>node</span><span class='p'>.</span><span class='nx'>append</span><span class='p'>(</span><span class='s2'>&quot;svg:circle&quot;</span><span class='p'>)</span> <span class='lineno'>27</span> <span class='p'>.</span><span class='nx'>attr</span><span class='p'>(</span><span class='s2'>&quot;r&quot;</span><span class='p'>,</span> <span class='kd'>function</span><span class='p'>(</span><span class='nx'>d</span><span class='p'>)</span> <span class='p'>{</span> <span class='k'>return</span> <span class='nx'>d</span><span class='p'>.</span><span class='nx'>r</span><span class='p'>;</span> <span class='p'>});</span> <span class='lineno'>28</span> <span class='lineno'>29</span> <span class='nx'>node</span><span class='p'>.</span><span class='nx'>filter</span><span class='p'>(</span><span class='kd'>function</span><span class='p'>(</span><span class='nx'>d</span><span class='p'>)</span> <span class='p'>{</span> <span class='k'>return</span> <span class='o'>!</span><span class='nx'>d</span><span class='p'>.</span><span class='nx'>children</span><span class='p'>;</span> <span class='p'>}).</span><span class='nx'>append</span><span class='p'>(</span><span class='s2'>&quot;svg:text&quot;</span><span class='p'>)</span> <span class='lineno'>30</span> <span class='p'>.</span><span class='nx'>attr</span><span class='p'>(</span><span class='s2'>&quot;text-anchor&quot;</span><span class='p'>,</span> <span class='s2'>&quot;middle&quot;</span><span class='p'>)</span> <span class='lineno'>31</span> <span class='p'>.</span><span class='nx'>attr</span><span class='p'>(</span><span class='s2'>&quot;dy&quot;</span><span class='p'>,</span> <span class='s2'>&quot;.3em&quot;</span><span class='p'>)</span> <span class='lineno'>32</span> <span class='p'>.</span><span class='nx'>text</span><span class='p'>(</span><span class='kd'>function</span><span class='p'>(</span><span class='nx'>d</span><span class='p'>)</span> <span class='p'>{</span> <span class='k'>return</span> <span class='nx'>d</span><span class='p'>.</span><span class='nx'>data</span><span class='p'>.</span><span class='nx'>key</span><span class='p'>.</span><span class='nx'>substring</span><span class='p'>(</span><span class='mi'>0</span><span class='p'>,</span> <span class='nx'>d</span><span class='p'>.</span><span class='nx'>r</span> <span class='o'>/</span> <span class='mi'>3</span><span class='p'>);</span> <span class='p'>});</span> <span class='lineno'>33</span> <span class='p'>});</span> </code></pre> </div> </div> <div class="foot">Copyright &copy; 2011 <a href="http://bost.ocks.org/mike">Mike Bostock</a></div> </div> </div> <a href="http://github.com/mbostock/d3"><img style="position:absolute;top:0;right:0;border:0;" width="149" height="149" src="../forkme.png" alt="Fork me on GitHub" /></a> </body> </html>