Subject: re: halfneighbours<br/>
Date: Apr 22, 2002 @ 00:33<br/>
Author: Brendan Whyte (&quot;Brendan Whyte&quot; &lt;b.whyte@...&gt;)<br/>
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<div id="ygrps-yiv-1285315893">But as the distance from the centre of a white square (say to the centre of <br/>
the neighbouring black squares is 1, and the distaince to the neighbouring <br/>
&#39;half neighbour&#39; white squares is sqr2=1.414...<br/>
SShould not the &#39;half neighbours&#39; really be (1/sqr2)=0.707 neighbours, for <br/>
6.828 neighbours total ~7?<br/>
BW<br/>
<br/>
<blockquote><span title="ireply"> &gt;In geographic information systems back in the 1970s, we used to use a term<br/>
&gt;&quot;half-neighbor&quot;. In a checkerboard, each square has 4 &#39;full neighbors&#39; (of<br/>
&gt;the opposite color to the current square), and four half-neighbors (same<br/>
&gt;color), for a total of six neighbors.  Just as each brick in a wall has<br/>
&gt;six neighbors.<br/>
<br/>
<br/>
 </span></blockquote>_________________________________________________________________<br/>
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