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How to get surface normal in general(on the whole)?

liangycc

Hi,

Thanks to all of you for your valuable time and efforts putting in helping others.

I want to get the surface normal in general(like showing as *surfacedisplaynormals).However,i can only find hm_getsurfacenormal,which shows normal for a point on surface.

How can i get surface normal value on the whole?

Thank you very much!!!

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tinh

Surface is curved so every point has a different normal. There is not anything called 'whole normal'

liangycc

Surface is curved so every point has a different normal. There is not anything called 'whole normal'

But when i click normal icon or use*surfacedisplaynormals for a surface,a normal will display.What is the meaning of this normal?I think i want to get this value.

tinh

That is normal at point that the arrow locates.

The point could be center of the surface.

To get center of surf, I am not sure about hm_getcentroid (pls try)

liangycc

That is normal at point that the arrow locates.

The point could be center of the surface.

To get center of surf, I am not sure about hm_getcentroid (pls try)

Thank you very much!Let me try.