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[Question #681993]: contact of polyhedras


New question #681993 on Yade:

I have 3 questions about the contact of polyhedras:
1.How to caculate the contact point of 2 polyhedras(tetras) ( What's the algorithm of the contact point between 2 tetras since they are not spheres and they don't have central point?)
2.Although a polyhedra consists of lots of points, but they are all separated in tetras in simulations, is that right?
3.what's the difference between the polyhedron in utils and polyhedra in polyhedra_utils?

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