Although having nothing to do with me, I found this nice treelike structure that exhibits the Fibonacci number properties (the increasing branches) which is not very hard to achieve with an L-System. At its most basic form it would look like this.

Axiom: A

A → AB

B → A

I’m fairly happy with the script as it gets the job done and it is available for download here. There are a lot of tweaks to be made, for sure, but these curves are all produced in Illustrator. This is one of my favourite grammars, the Cesaro’s Sweep. It is actually a variant of the Koch Snowflake but I think it looks like trees. Another one of many variants of the Koch curve. This is a Quadratic Koch Island. The last one is called a dragon curve. The keen observer will also recognize this as the curve from the Jurassic Park book. There is also a pretty handy Java applet by Christopher G. Jennings to play with here.

Jared Tarbell’s homepage Complexification is another page I had found earlier. He has made some amazing scripts using Processing and his random line, water color script very much resembles a huge city viewed from above.Anyway, I threw myself head-over-heels into this undertaking and spent two nights trying to make my own city generator and came up with this.Now, I must say that it looks fairly satisfying but it only works a fraction of the times I run it and I have no control over any of the parameters I should be able to control such as population density, map type (raster, radial or a mix of the two), road curvature, road classes and their potential to spawn new branches.

As in Introversion’s Subversion I guess that I would have to make use of some complex L-system but that is a little too much above my competence level, for the moment.