diagrams/diagrams-lib — pull request #129 by bergey (2013-10-17 14:39:34+00:00)
Title: 3D scaling, alignment, coordinate lenses

This is my last addition of 3D features before the freeze. I'll finish the CSG stuff after 1.0.

I'm not sure if the coordinate lenses in 6f82ca4 are a good idea. I modeled them after their equivalents in [linear](http://hackage.haskell.org/package/linear). They make writing the scaling in 62d6647 really nice. Do they undermine type safety and the distinction between points & vectors too much?