Subject: Re: [BoundaryPoint] Jungholz<br/>
Date: Mar 14, 2001 @ 20:46<br/>
Author: David Mark (David Mark &lt;dmark@...&gt;)<br/>
<a href="1755.htm">Prev</a>&nbsp;&nbsp;&nbsp;&nbsp;Post in Topic&nbsp;&nbsp;&nbsp;&nbsp;<a href="1766.htm">Next</a>&emsp;[<a href="topic1754.htm">All</a> Posts]<br/>
<a href="1755.htm">Prev</a>&nbsp;&nbsp;&nbsp;&nbsp;Post in Time&nbsp;&nbsp;&nbsp;&nbsp;<a href="1757.htm">Next</a><br/>
<br/><br/>
<div id="ygrps-yiv-93903414">No one can own a point because a point occupies zero area or volume, and<br/>
has no room for even one atom.<br/>
<br/>
On the corner connection, such as Colorado-Arizona or Utah-New Mexico,<br/>
this is a common problem/issue in geographic information systems. It is<br/>
common to divide the geography into square cells and record what is in<br/>
each cell. Each cell in a checker-board (except the ends ones has four<br/>
&quot;full neighbors&quot; with which it shares an edge (boundary line), and four<br/>
&quot;half-neighbors&quot; that it touches only at exactly one point (the corners).<br/>
Six neighbors in total, 4 whole, plus 4 half.  So, in GIS terminology,<br/>
Jungholz is a half-neighbor of the rest of Austria.<br/>
<br/>
David<br/>
<br/>
<blockquote><span title="qreply"> On Wed, 14 Mar 2001, Jesper & Nicolette Nielsen wrote:<br/>
<br/>
&gt; Jungholz is connected to the rest of Austria by a single point. That is<br/>
alrady established.<br/>
&gt; <br/>
&gt; On the other hand Germany is also connected with herself at that point.<br/>
Right? So if Germany is connected is then Jungholz disconnected ie an<br/>
enclave? <br/>
&gt; <br/>
&gt; Who owns the point? No man&#39;s land or a condominium? If point is a no<br/>
man&#39;s land then Jungholz is a fragtment (as it is touched by no man&#39;s land<br/>
and Germany).<br/>
&gt; <br/>
&gt; If condominium then Jungholz is also a fragtment as it is touched by<br/>
Germany/Austria and Austria!<br/>
&gt; <br/>
&gt; Am I too technical?<br/>
&gt; <br/>
&gt; Jesper<br/>
&gt; </span></blockquote></div>