[vtkusers] vtkUnstructuredGrid + GetNumberOfCells()

[Baliki B.]

I forgot to update()...
It's ok now.

2009/12/11 Baliki B. <balikivtk at gmail.com>

> Hi,
>
> I read a .vtk file which is an unstructured grid.
> When i try to get the number of cells it returns 0.
> Why is that?
> Notice that i can display the grid.
>
> Thanks
>
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