Get Normal Vector on Surface
Hello,
I tried to get the normal vector at specified a point on the surface of a solid, but did't found a solution yet. Is there an easy way to get it?
Thanks
I tried to get the normal vector at specified a point on the surface of a solid, but did't found a solution yet. Is there an easy way to get it?
Thanks
Comments

For a flat face of a 3D solid this can be done by aligning the UCS to the face and then drawing a line from the point in the pos. Z direction. I don't know how this can be accomplished if the face is curved.

Thank you.
But I need it for a curved surface. 
I'm thinking make a Point on your Surface then make a copy of the Surface and the point then scale the copy and the point times 1.5 around its centroid. Finally make a line between the Points. ! ? Havent tried it yet but could work. just dont know how to find the centroid. Maybe someone knows

What kind of Surfaces do you mean?
If there are "oldfashioned" meshes like RULESURFs, REVSURFs or EDGESURFs so I have an idea, how to get the Normal vector.
Regards
Jochen
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