[vtkusers] vtkGeometryFilter question

[David E DeMarle]

The pedigree_ids attribute marker was added to vtk for just this
purpose. To use it, make a vtkIdType array with a unique value for
each cell. Then mark it as "the" pedigree_ids array.
vtkDataSet()->GetCellData()->SetPedigreeIds(your_new_array). VTK
thereafter tries to preserve the contents of that array as long as it
can, so that you can determine where each cell came from.

David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109



On Tue, Apr 21, 2009 at 2:06 PM, Flanery Jr, Raymond E.
<flaneryrejr at ornl.gov> wrote:
> I am using vtkGeometryFilter in a similar fashion to the test example eleState.tcl in a python code. The problem I am running into is that at the end I need to be able to get access to the original cellId and tkGeometryFilter is giving every actor a new cellid. How can I retain the original cellId so that I can use vtkCellPicker to return that value for me?
>
> Ray Flanery
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