title: D3 treemap node order
body: <p>I am new to D3 and I built my first treemap.</p>
  
  <p>I am trying to figure out to order nodes (s) from left to right based + top to bottom instead of right to left + bottom to top. The order is based on each node's size value.</p>
  
  <p>Right now, it looks like</p>
  
  <pre><code>size 20  |  size 100
  size 50  |
  size 70  |  size 200
  </code></pre>
  
  <p>but I want like</p>
  
  <pre><code>size 200  | size 70
            | size 50
  size 100  | size 20
  </code></pre>
  
  <p>Here's full <a href="http://jsfiddle.net/KVTX9/" rel="nofollow">JSfiddle</a>.</p>
  
  <p>I really appreciate it in advance.</p>