[vtkusers] vtkPolyData DeleteCell() problem

[G Li]

Hi, All:

Is there any quick and dirty way to collect all the non-empty cell after using Polydata's DeleteCell(id) method.
Also, I get seg fault when I use DeletePoint(id) method. I use VTK 4.2 release.

I tried with vtkDecimatePro with TargetReduction setting to 0, but ti doesn't work. 

Thanks

Lee  
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