[vtkusers] getting normals

[Alexander Smondyrev]

   Hi, 

Can anyone suggest a method to extract normal vectors,
which are generated by vtkPolyDataNormals and put them
into a FloatArray object. I could do it with the older
version (3.2) using vtkNormals, but now I can't figure
out how this should be done. Any comments would be
greately appreciated. 

   - Alex Smondyrev.

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