[vtkusers] normals

[Nikita Kojekine AKA Kitya Karlson]

Thank you for your answer. I would like to define normal to a point from
a point cloud as an average normal on triangles, I would get, If I connect by triangles this
point and it's nearest neighboors. Is there a Delaunay triangulation for 3D in vtk, how can I use
it and than get this normals?

> Hi Nikita,
>
> How do you define a normal for a point in a point cloud (vtkpoints)?
> If you create a surface mesh (polydata) out of your point set, you could
> use vtkPolyDataNormals and get the normals as pointdata attributes.
>
> Hope this helps
> Sylvain
>
> On Mon, 7 May 2001, Nikita Kojekine AKA Kitya Karlson wrote:
>
> > Hello!
> > I have a set of points vtkPoints, which represent the surface.
> > Can I get for each point 2 points instead of it - one on -0.001 on
> > normal
> > from the original and one on +0.001? how can i get normal with vtk?
> > Thank you.
> >
> >
> >
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