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Ok, I sort of got it working. However, the results look very
strange.<br>
I think that it might be because I'm using multiple quadric LOD
actors, each one with its own polydata mapper.<br>
Some of the actors get decimated, some disappear completely and some
are untouched.<br>
I would have expected a more or less evenly distributed decimation.<br>
<br>
Does the decimation only work properly if there's a single LOD
actor?<br>
<br>
Has anyone else used the
<title>Snippet</title>
vtkQuadricLODActor? If so, how are you using it?<br>
<br>
Thanks.<br>
<br>
<div class="moz-cite-prefix">On 2/26/2015 11:40 AM, Serge Lalonde
wrote:<br>
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<blockquote cite="mid:54EF4C8F.2050607@infolytica.com" type="cite">
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Hi VTK users,<br>
<br>
We sometimes have very large models displayed using a
<title>Snippet</title>
vtkUnstructuredGrid+vtkActor+vtkDataSetMapper.<br>
I'd like to enable LOD so that I can get a minimum level of
performance when doing dynamic rotations/pans/zooms.<br>
Ideally, it would do like ParaView and reduce the number of
triangles using some kind of decimation of the data.<br>
<br>
I tried replacing vtkActor with vtkQuadricLODActor, replacing
vtkDataSetMapper with vtkPolyDataSetMapper.<br>
The problem is that vtkUnstructuredGrid isn't derived from
vtkPolyData.<br>
<br>
How can I finish connecting all the pieces? Or is there a
different/better way?<br>
<br>
Thanks.<br>
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