Surface triangulation of 3D points cloud

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Lorenzo Bennati
Lorenzo Bennati 2020-12-14
回答： John D'Errico 2024-12-24
Hi everyone I was wondering if it is possible, starting from a Matrix A that describes, for each row, the coordinates of my points cloud, to create a surface mesh of my matrix A made by triangles. i tried with delaunay triangulation, but it seems that gives me a thetraedral mesh, insted i want to triangulate only the boundaries to create a .stl file. How could i do? Any help would be appreciated, Lorenzo
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John Kearns
John Kearns 2021-6-16
@Lorenzo Bennati, did this work for you? I am also trying to do this.
Jiayi
Jiayi 2024-12-24
Hello, I face the same problem. have you ever solved this? Could you please give me some tips? Thank you so much! Jiayi@Lorenzo Bennati

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John D'Errico
John D'Errico 2024-12-24
A common solution is to use a CRUST code. In fact, there is a version of CRUST to be found on the File Exchange, here:
https://www.mathworks.com/matlabcentral/fileexchange/63730-surface-reconstruction-from-scattered-points-cloud?s_tid=srchtitle
https://www.mathworks.com/matlabcentral/fileexchange/63731-surface-reconstruction-from-scattered-points-cloud-open-surfaces?s_tid=srchtitle
There are two versions, depending on whether the surface is a closed one or not.

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