Homework for data structures class is to make mazes; just make. A "maze" is a grid of hex values, to look at it you can't tell if it's a valid maze. To make sure my program was outputing good stuff I drew it, and drew and drew more...
Here's a movie of circa being played with. I sped it up about 3 times. The movie is ~2 minutes, 4.5MB and shows a rendered version at the end. Sorry about the crude quality, the data went through several pipes... CircaTwiddling.mp4 I think people might be confused on how to use circa, I'm trying to show how I use it. Dis a first attempt at a video tutorial.