Info : T is actually a triangulation -list of triangles-, in which each index corresponding to the row index of a vertex in another list -a vertices list-, it is a widely used technique used to store and write triangular meshes in mesh processing. Here below the example is a tetrahedron -4 facets-.
How to find the position of an element in a vector without using the find function
Factorize THIS, buddy
We love vectorized solutions. Problem 1 : remove the row average.
Query a vertex neighbors
Find a common vertex
Find neighbor triangle indices
Remove duplicated vertices
Find triangles from edge
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