<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#333399">
<br>
<br>
Paul Ramsey wrote:
<blockquote cite="midac568a79b5ae91ffda7ced13035e462f@refractions.net"
type="cite"><br>
- Yes, the "selects" are redundant in this case.
<br>
- No, exteriorring() is a very clever trick, which turns your polygons
into the linestrings that represent their outer shells. The
intersection of a linestring and a linestring is a... point. Which is
exactly what you want.
<br>
<br>
</blockquote>
You're right! Earlier, though, when testing this theory, AsText(
exteriorRing() ) returned a type POLYGON, so this little trick was
masked... Thanks for the help!<br>
<br>
Mark<br>
</body>
</html>