All about city block tiling scripts.

[Chgowiz]

carved some lines through it using a Voronoi pattern then had it delete all buildings that were cut/touched by the Voronoi lines

How did you do that?

[RobA]

How did you do that?

Which - made the pattern, or deleted the touching buildings ?

I got the Voronoi pattern maker from a site that no longer has it there (it shows the site as "under modification").

BUT if you can get any pattern of road lines (even stroked paths or selected mosaic cracks this will work.

0) Set up a stack: city pattern on the bottom, and a black on white road pattern on top.
1) get rid of the shadows from the city building pattern layer using threshold alpha.
2) duplicate the city building pattern layer.
3) Move it above the road layer.
4) Lock the alpha and fill with black.
5) use the magic wand tool with the "sample merged" option ticked and click on one of the roads. You will get a selection of all roads plus connected buildings.
6) grow the selection 1 pixel
7) on the city building layer hit delete.

Now you will have to remake shadows, and fill in backgrounds/roads as desired.

-Rob A>