Making a grid with curses from a dictionary of flat tuples
<p>OK, I've been trying to figure out the best way to do this for a little while and it's just not coming to me. I have a dictionary with points on a grid...</p>

<pre><code>{(0,0):...(0,1):...}
</code></pre>

<p>I'd like to visualize this dictionary using <code>addch</code> in <code>curses</code>.</p>

<p>The points in the dictionary, to be printed on the screen, have to be converted like this:</p>

<pre><code>x, y
0,0 =&gt; 1,1
1,0 =&gt; 3,1
2,0 =&gt; 5,1
3,0 =&gt; 7,1

0,0 =&gt; 1,1
0,1 =&gt; 1,3
0,2 =&gt; 1,5
0,3 =&gt; 1,7
</code></pre>

<p><img src="http://i.stack.imgur.com/wPilI.png" alt="enter image description here"></p>

<p>I cannot think of an elegant way to take <code>(0,3)</code> and make it into <code>(1,7)</code> (the center on the screen grid). </p>
