[vtkusers] subsampling/masking a vtkUnstructuredGrid with user supplied vtkIdList

[Luca Penasa]

hi everybody, 
	i have an unstructuredgrid that i want to subsample extracting all
points with a user-defined id (maybe using a vtkIdList object)

example: my vtkIdList contains these ids: [0,23,5,21,8]
and i want to get a subsampled version of my UnstructuredGrid containing
only these points.

how can i get this?

thank you



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Luca Penasa
Student at Geosciences Dpt.
University of Padua (IT)
luca.penasa at email.it
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