mentation supports detecting and snapping points which are closer than a given
 tolerance value. If the same point (up to tolerance) is inserted more than once a new node is
 not created but the count of the existing node is incremented.
<P>

<P>
<DL>
<DT><B>Author:</B></DT>
  <DD>David Skea, Martin Davis</DD>
</DL>
<HR>

<P>

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