Here's a post dated blog entry for monday! I got the different block pattern generators working together. So here are some examples of the kind of block patterns we get out:
As you can can see the mixed one looks really authentic! The only problem is my Voronoi tesselator really doesn't like evenly spaced blocks at an angle, I guess thats tomorrows job.

I also fixed up the straight skeleton to create bevelled edges. This will be used to shrink the edges of the blocks away from the road centres to create a road network:

This got me caught up in fixing a lot of the guts of the sity program to create flat panels in the correct locations!