Determine the maximum height and maximum width of the cross-sectional section from the stl file

I have a 3D scan file in stl format. I want to determine the maximum height and maximum width of 9 cross-sections at positions 10, 20,...90mm from the starting point. I have attached a sample file.

Who knows please help me. I sincerely thank you

[Eric]

What step are you stuck on, exactly? I searched online for "MATLAB stl file"... Have you tried the steps in the first result, STL File Import? Have you used fegeometry?

Answer 1

[DGM]

Obtain the sectional geometry:

https://www.mathworks.com/matlabcentral/answers/2175386-surface-area-at-given-hight-of-an-stl-file

... and then find the range of coordinates in each slice polygon.