elidupree/Lasercake — pull request #19 by idupree (2012-01-04 05:32:10+00:00)
Title: Speed / cleanup / display work.

I'm not sure what I think of the extra bounding-box-shuffling code I added in 3f0a4a7d58d, but the rest of this work looks to me to have no annoying increases in interweaved code size/complexity.

(I use the bounding-box code in that commit in a later display-related commit, so I can't just chuck it.)