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Are the points on the bottom of your object used in any cells? If
you are expecting these points on the bottom of your polydata object to
be displayed as points (not vertices of a polygon), then you need to add
a vtkVertex for each of the ones to be displayed this way.<br><br>
- Amy Henderson<br><br>
At 04:27 PM 2/6/2003 +0100, Karlsson Erik wrote:<br><br>
<blockquote type=cite class=cite cite><font size=2>Hi all!</font> <br>
<font size=2>I have a really strange problem. I have about 500 000 points
and I use a vtkCellArray to make a triangle mesh that I put in a
vtkPolyData object. When I render my scene the bottom of my object is not
showing. The strange thing is that if I use a vtkLODActor instead of a
normal actor, I can see the missing part of my mesh when the whole actor
is shown as a point could while rotating/zooming the object. So I know
for a fact that all the points have been inserted to the PolyData
object. But as soon as I stop interacting with the scene and the
object is rendered with triangles again, the bottom disappears. I also
tried using the vtkDecimatePro to decimate the PolyData object about 10%
and now I can see all of my triangles. Is there some kind of a limit to
the number of triangles that can be displayed or the number of points
that can be used? Can it be a hardware issue? Does anyone have the
slightest idea?<br>
</font><br>
<font size=2>Can someone please help me shed I light on this - I have
been struggling with this problem for about a week now... :-/</font>
<br>
<font size=2>By the way - I'm using vtk 4.02, MSVC++ 6.0 MFC. My graphics
card is a Geforce2 MX (latest drivers)</font> <br><br>
<font size=2>Thanks in advance!</font> <br><br>
<font size=2>Best regards,</font> <br>
<font size=2>Erik Karlsson <br>
</font><br>
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</blockquote><br>
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