[vtkusers] non-empty cells collect problem

[Emilio Ponce]

Hi guys,

I'm doing the implementation of the paper 'Decimation of Triangle Meshes' , for
Linux. After mark as deleted some cells from my vtkpolydata model, I don't
know how to collect the non-empty cells, in order to represent the new
model without the deleted cells.

Is there any quick way to collect all the non-empty cell after using
Polydata's DeleteCell(id) method?? Which class I must use?

I will be very pleased if you help me with this little problem.

Thanks!!

Emilio