tet_mesh_tet_neighbors_test, an Octave code which calls tet_mesh_tet_neighbors(), which reads information defining a tet mesh of points in 3D, and determines, for each face of each tetrahedron, the index of the neighboring tetrahedron that shares that face.
The computer code and data files described and made available on this web page are distributed under the MIT license
tet_mesh_tet_neighbors, an Octave code which reads information about a tet mesh and writes out a list of the tetrahedrons that are adjacent to a given tetrahedron;
CUBE is a simple example of 8 nodes in a cube.