If you look within the cellsystem class you will find a few variables are defined, States, Size (size of each cell), and RSize (size of the point drawn). If Size is greater than RSize there will be space between the points and if RSize is greater the shapes will overlap. In the images above the bot Size and RSize were 1 or less, making the individual points blend into an intricate pattern. I’m sorry these might not be the most logical terms or put in the easiest place. I was just having fun with this and for whatever reason it made sense to me at the time.

The images I posted are, of course, some of the more interesting patterns. Depending on the initial points and the ruleset (both of which are randomized) it will sometimes just look like noise. The rendering size I have is very large to fit my screen, but you can scale it down to something more reasonable by changing the parameters of the size() function in the setup.

To get a print-sized image you can either export a vector image (for this that might not be the best idea) or increase the size of the render-window and all of the objects. I explain both methods in my post on Rendering Processing for Print.