Paul,
at line 1039 these 3 vertices are removed (or at the very least 3 vertices are
removed), and so far I have not seen any triangulations which show triangles
using any supertriangle vertices being displayed. Have you got an example that
will show this extra vertex? (Ideally as simple as possible)
Geoff
----- Original Message -----
From: Paul Martz
To: 'osg users'
Sent: Thursday, December 14, 2006 10:32 PM
Subject: [osg-users] DelaunayTriangulator issue, current CVS
Geoff, Robert -- There appears to be a problem with the osgUtil
DelaunayTriangulator in current CVS.
At about line 774 in DelaunayTriangulator.cpp, three vertices corresponding
to a "supertriangle" are added to the points list. What I'm seeing with the
current code is that the last one of these vertices appears to be incorrectly
included in the final triangulation (the result triangle mesh incorrectly
extends outside my point domain in positive Y). If I change the order of these
vertices so that the first vertex is last, then my triangulation incorrectly
extends out in negative X. So, whichever vertex is last seems to mistakenly end
up in the triangulation.
This is with current CVS v1.12 of this file. If I back out to v1.11, the
problem goes away.
Any idea what might be going awry here?
Paul Martz
Skew Matrix Software LLC
http://www.skew-matrix.com
303 859 9466
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