pydy/pydy — pull request #45 by moorepants (2014-04-22 19:35:05+00:00)
Title: Shapes now accept SymPy expressions in geometry.

- Cleans up the viz/shapes.py to have less repeated code.
- Specific shapes have required arguments for their geometry (backwards
incompatible).
- Shapes can have SymPy expressions set for the geometry and numerical values
are now substituted in the Scene class.
- Addresses issue #41