title: Create contour map
body: <p>Given a set of <code>(x, y, z)</code> coordinates, how would I go about creating a contour map?</p>
  
  <p>Would be nice to know how to implement in <a href="/questions/tagged/d3" class="post-tag" title="show questions tagged 'd3'" rel="tag">d3</a> but wouldn't mind trying to implement it myself if I had some direction.</p>
  
  <hr>
  
  <p>For <a href="/questions/tagged/d3" class="post-tag" title="show questions tagged 'd3'" rel="tag">d3</a> users, can I create a contour map using <code>d3.geom.contour()</code> and jasondavies' 
  conrec.js:</p>
  
  <blockquote>
    <p><a href="https://github.com/jasondavies/conrec.js">https://github.com/jasondavies/conrec.js</a></p>
  </blockquote>
  
  <p>Essentially, I'd like to replicate this contour map using d3.js: <a href="http://beaugunderson.com/routes/">http://beaugunderson.com/routes/</a>  </p>