Go from OBJ meshes to to a file containing tetrahedral elements

[Anonymous]

Each tetrahedron has four triangular faces. I export those triangular faces with vertex information into a file and you get the triangular soup (the OBJ meshes). What I want to recover back is the tetrahedra, so I can cull away the inner triangles and do more interesting things with the volumetric mesh.

[Hugo]

Dear @fayad

sorry for the delay of the first reply.
The Obj format manages only surface meshes. If you want to handle a volumetric mesh (with volumetric elements, like tetra or hexa, and not only surface element, like triangles or quads), you shall use another format like the VTK format.

Best

Hugo

[Author]

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