title: How to put a node in the center of the dot-generated graph
body: <p>With the following dot code</p>
  <pre><code>digraph DG {
      G -&gt; V;
      G -&gt; E;
      G -&gt; P;
      G -&gt; C;
  }
  </code></pre>
  <p>I generate the following graph</p>
  <p><img src="https://i.stack.imgur.com/NoDsS.png" alt="dot-generated graph" /></p>
  <p>How could I move the node G in the centre? That is I wish to get something like this:
  <img src="https://i.stack.imgur.com/bdT2D.png" alt="wished result" /></p>
  <p>p.s. My experiments with setting the rank of the edge didn't work out.</p>