[vtkusers] How to Recover vtkPolyData from vtkThreshold

[R K Shyam Prakash]

John,

> >>I would like to render selective cells from vtkPolyData. I tried
>>  vtkPolyData > vtkThreshold > vtkPolyDataMapper
> >>but this does not compile because the output of vtkThreshold is of
> > type vtkUnstructuredGrid.
> >>Is there anyway of recovering the output of vtkThreshold as
> > vtkPolyData or an alternative filter?

Use the following pipe line.
vtkPolyData > vtkThreahold > vtkGeometryFilter > vtkPolyDataMapper

--Shyam