A todo list/wishlist for the polyhedra.py module:
- Add a method to get visible facets for a point
- Add optional vertex labels
- Use lrs or TOPCOM to compute triangulations
- add TOPCOM as an optional package
- get lrs included as standard
- implement Blaschke sums
- implement a generic beneath-and-beyond method that would work over any Sage "field" (or perhaps even rings?)
- "explode" method - return facets as polyhedra
- methods for getting lists of edges and facets as graphics objects
- finer control of Schlegel and other projections
- implement unfolding (i.e. a net)
- better integration with Gfan interface classes (e.g. polyhedralfan).
