inducer/meshpy — pull request #3 by goxberry (2014-08-12 23:46:05+00:00)
Title: Add methods to compute edges & faces from elements

Add some utility methods to compute edge & face information from
subclasses of GmshElementBase.

Add:
- gmsh_edge_tuples method to all subclasses of GmshElementBase;
computes a tuple representation of all edges in an element
- gmsh_face_tuples method to all subclasses of GmshElementBase;
computes a tuple representation of all faces in an element
- get_gmsh_edge_indices method to GmshElementBase; maps tuple
representation of edges to node index representation of edges
- get_gmsh_face_indices method to GmshElementBase; maps tuple
representation of edges to node index representation of edges