[vtkusers] vtkpolydata + scalars

[John Biddiscombe]

> ->GetPointData->GetScalars - the vtkscalars I get is always null. I
noticed
> two postings on this before without any answers.

If the polydata is the output of a filter, then when the filter executes it
will overwrite the output so setting the scalars will not work for you (and
hence a NULL result). If the polydata is "stand alone" then you're ok.

JB