[vtkusers] How should I get the right normal of a polygon defined in vtkCellArray?

[Amy Squillacote]

Have you tried using the vtkPolyDataNormals filter with 
ComputeCellNormals turned on and ComputePointNormals turned off?

- Amy

At 08:00 AM 9/29/2005, michal you wrote:
>I must distinguish which side of the polygon is the inner side or 
>outer side?Is there any way I can do this?Thanks for any suggestions.
>
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