[vtkusers] Consistent orientation of cells

[R K Shyam Prakash]

Hi,
        I have closed polydata surface representated by triangles. In
few casesThe normals of the triangles are not consistent. some of the
triangles have normls oriented towards outside of the surface. Is there
a method which will ensure that all triangle normals are pointed inside
of the polydata?
 
Thanks
Shyam
 
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