you can use vtkTriangleFilter to triangulate the polydata and then play with the subdivision<br><br><div class="gmail_quote">On Wed, May 23, 2012 at 12:49 PM, tasnim <span dir="ltr"><<a href="mailto:hanene-jeder@hotmail.fr" target="_blank">hanene-jeder@hotmail.fr</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi everybody,<br>
i create a program which creates a spheresource, then i select a cell,<br>
create a vtkPolyData from it, and try to subdivide it with the<br>
vtkLoopsubdivisionFilter.But, when I pick a cell, a message error appears:<br>
<br>
*Warning: In C:\vtk-download\vtk<br>
source\Graphics\vtkLoopSubdivisionFilter.cxx, line 363<br>
vtkLoopSubdivisionFilter (019BAE58): vtkLoopSubdivisionFilter only operates<br>
on triangles, but this data set has no triangles to operate on. ERROR: In<br>
C:\vtk-download\vtk source\Filtering\vtkExecutive.cxx, line 756<br>
vtkStreamingDemandDrivenPipeline (019BB448): Algorithm<br>
vtkLoopSubdivisionFilter(019BAE58) returned failure for request:<br>
vtkInformation (019CD1B8) Debug: Off Modified Time: 3532 Reference Count: 1<br>
Registered Events: (none) Request: REQUEST_DATA FORWARD_DIRECTION: 0<br>
ALGORITHM_AFTER_FORWARD: 1 FROM_OUTPUT_PORT: 0*<br>
This message shows that my new polyData didn't contain triangles.<br>
Any Help please, and thanks<br>
<br>
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</blockquote></div><br>