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<DIV><FONT face=Arial size=2>For people who will ask the same thing as me
:</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>I would just say that everybody should clean
polyData</FONT></DIV>
<DIV><FONT face=Arial size=2>before sending it to delaunay.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>having identical points as start and end point is
not enough </FONT></DIV>
<DIV><FONT face=Arial size=2>for a polygon sent as constaint, points must
have the same </FONT></DIV>
<DIV><FONT face=Arial size=2>_ID_.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>That was the source of my error.</FONT></DIV>
<DIV><BR><FONT face=Arial size=2>Seb</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px; PADDING-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A href="mailto:maraux@ondim.fr" title=maraux@ondim.fr>Sebastien MARAUX</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
href="mailto:vtkusers@public.kitware.com"
title=vtkusers@public.kitware.com>vtkusers</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, January 29, 2003 4:01
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [vtkusers] delaunay constrained
tesselation issue</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>hello,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>As you can see with the attached gif file,
</FONT></DIV>
<DIV><FONT face=Arial size=2>I meet problems doing a constrained</FONT></DIV>
<DIV><FONT face=Arial size=2>tesselation with vtkDelaunay2D :</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>inner polygons, whereas defined</FONT></DIV>
<DIV><FONT face=Arial size=2>as CW , seems to be unclosed,</FONT></DIV>
<DIV><FONT face=Arial size=2>ans it produces a face hole for each</FONT></DIV>
<DIV><FONT face=Arial size=2>inner polygon.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>input data are a a vtkpolyData as
input</FONT></DIV>
<DIV><FONT face=Arial size=2>and also the same vtkpolyData</FONT></DIV>
<DIV><FONT face=Arial size=2>as constraint.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>the vtkPolyData contains 1CCW big</FONT></DIV>
<DIV><FONT face=Arial size=2>polygon closed </FONT><FONT face=Arial
size=2>(last point id = first</FONT></DIV>
<DIV><FONT face=Arial size=2>point id) and 2 CW smaller </FONT><FONT
face=Arial size=2>polygons</FONT></DIV>
<DIV><FONT face=Arial size=2>defining holes in the biggest one,</FONT></DIV>
<DIV><FONT face=Arial size=2>closed as well as I can see.</FONT></DIV>
<DIV><FONT face=Arial size=2>(3 VTK_POLYGONS type).</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Is there somebody here who could</FONT></DIV>
<DIV><FONT face=Arial size=2>have an idea of what is happening ?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Thank you in advance </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Sebastien MARAUX</FONT></DIV>
<DIV> </DIV></BLOCKQUOTE></BODY></HTML>