-- The standard element index connectivity table writes : {1, 5 }
-- The standard element connectivity table writes : {1, 2, 3, 4 }
-- The polyhedra face connectivity index table writes :{1, 5}
-- The polyhedra connectivity index table writes : {1, 4, 7, 10, 13}
-- The polyhedra connectivity (face/node connectivity) table writes : {2, 3, 5, 2, 4, 5, 4, 5, 3, 2, 3, 4}
-
-Note that as they are not needed as such, the face numberings are not stored
-in any array. Only the number of nodes per face is implicitly stored
-in the polyhedra face connectivity index table.
+- The connectivity table writes : {1, 2, 3, 4, 2, 5, 3, -1, 2, 4, 5, -1, 4, 3, 5, -1, 2, 3, 4}
+- The index connectivity table writes : {1, 5, 20 }