I would like to import data from an STL file of a 3D object to MATLAB and create a 2D contour plot of it. Does anyone have any ideas about this? Thanks!

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I am trying to create a contour plot showing the thickness of this odd shaped 3D body similar to a topography map. If I had a matrix of x and y coordinates with the thickness at those locations (not just height but thickness) then I could create a contour plot. I do not know how to import the STL to MATLAB however and extract this information from it. Any tips would be greatly appreciated!

Accepted Answer

Walter Roberson
Walter Roberson on 30 Jun 2016
https://www.mathworks.com/matlabcentral/fileexchange/22409-stl-file-reader

More Answers (1)

Ahmet Cecen
Ahmet Cecen on 30 Jun 2016
STL files have a very specific format you can exploit to gather your data automatically. Try using "textscan" followed by "strsplit" to get the x, y, z coordinates of the vertices.
  1 Comment
Edgar Crassier
Edgar Crassier on 6 Feb 2021
Could I get more information on this method? I do not understand how to extract the vertices variable into separate x,y and z coordinates.

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