[vtkusers] Modifying vtkPolyData

[David Doria]

>
> Yes, it will be necessary to call Modified on the programmable filter.
>  Normally, Modified() is automatically called on a VTK filter when its
> Set methods are called, but for the vtkProgrammableFilter it is
> necessary to can Modified manually.
>
> Also, generally you should let the VTK pipeline execute the filter
> (which it will do when Render is called), instead of calling Update
> manually.
>
>   David
>

Round 2: http://www.vtk.org/Wiki/VTK/Examples/Utilities/DataAnimation

Is there a way to access the programmableFilter in the timer callback
besides making the programmable filter global as I have done here?

Other than that, Jordi, this should be what you were looking for.

Thanks,

David D.
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