Subject: Re: Famous Confluence Busters<br/>
Date: Aug 14, 2001 @ 16:07<br/>
Author: bjbutler@bjbsoftware.com (bjbutler@...)<br/>
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<div id="ygrps-yiv-1896982500"><blockquote><span title="ireply">&gt; &gt; The Confluence Project, where people try to navigate by GPS to 1-<br/>
 </span></blockquote>degree <br/>
<blockquote><span title="ireply"> &gt; &gt; intersections of latitude and longitude,<br/>
&gt; We have a similar group in the UK. The UK National Grid system <br/>
 </span></blockquote>consists of 100km squares, within which coordinates are defined <br/>
by &quot;easting&quot; and &quot;northing&quot; figures...<br/>
<br/>
There is also the UTM (Universal Transverse Mercator) grid, which <br/>
covers the populated part of the world with a 1km grid in case anyone <br/>
needs to be bombed, arranged in zones.  For intersection hunters, a <br/>
major problem must occur near the edges of zones.  These areas are <br/>
generally covered by two, non-coincident, grids.  I suppose the <br/>
visitors specify the zones when they report their visits.  I am just <br/>
not excited by this idea.  There are pleanty of &quot;real&quot; (natural <br/>
feature) and pseudo-real (&quot;boundary&quot;) points to visit that do not <br/>
depend on the coordinate system.<br/>
<br/>
BJB</div>