How to get the curvature of a meshed surface?

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Tom Engels 2021-7-29

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https://ww2.mathworks.cn/matlabcentral/answers/888497-how-to-get-the-curvature-of-a-meshed-surface

评论： darova 2021-8-4

采纳的回答： darova

Hello all,

I have the following problem:

I import a body as .stl into Matlab and mesh it. Then I calculate the normal vectors and sort out vertical surfaces on the basis of these, so that I finally get a pure surface (shown below).

This surface is described by the points from the mesh (in this case by the points on the edge). I know these points. I have an Nx3x3 array for verticies. Each row of the array describes one facet.

Now I want to calculate and display the curvatures for this surface. Unfortunately, I don't know how to do this in the most sensible way.

The files that already exist in the File Exchanger for this purpose usually only work with a surface that was created with meshgrid.

Can anyone help me here?

Greetings

Tom