PolyData from vtkReverseSense

[John Biddiscombe]

reverse->Update();
>     vtkPolyData *reversed = reverse->GetOutput();
>     inPolys = reversed->GetPolys();
>     fprintf(stderr, "vtkReverseSense reversed->GetPolys: %d\n",
>     inPolys->GetNumberOfCells());

should fix it. Polydata output is created at construct time, but
not filled until update is called.

JB

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