Cross sections of 3D surface (stl)

Dear Matlab community,

I am working towards a project and one of my tasks is to generate 0.3mm increment cross-sections of an STL file. The delicate part of the process is that I generated cross-sections to similar STL files using a different software (VMTK) but due to the limitations of that software i now need to refer to matlab.

My Question:

Is there a way where I can generate a script which enables me to get cross sections of my STL in 0.3mm increments AND using a pre-determined cutting plane? In other words, I would like to use the same cutting plane as used in VMTK to generate these new cross-sections using MATLAB (for consistency).

Please provide me with some help or guiadance.

I thank you for your time,

-Dev.

[KSSV]

Can you provide a pictorial example?

[Devrim Tugberk]

thank you! Although i want to say that this geometry will be changing since i am working with several different files.

[Devrim Tugberk]

Any ideas? updates?

Answer 1

[Sai Sri Pathuri]

You may use interp2 function in loop to plot the cross sections of the 3D surface in 0.3mm increments. Set hold to ‘ON’ for axes object.

You may refer the related answer

https://www.mathworks.com/matlabcentral/answers/13152-how-to-plot-a-cross-section-of-a-surface-plot

Refer the following link for documentation of interp2

https://www.mathworks.com/help/matlab/ref/interp2.html

Answer 2

[DGM]

See also:

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