Lindenmayer systems

jobtalle.com

66 points·doppp··9 comments

I did my Master in CS 17 years ago and took a course in L-Systems under Dr Prusinkiewicz (aka Dr P.). Dr P. is (was?) probably the leading authority on L-System. They provide an interestig high level building blocks for developmental systems, but they’re a bit cumbersome and they gloss over the biological details so as as to offer limited biological insight.

Got a hobby project where you can generate l-systems.

https://mathblocks.net/workspace/#lsystem_0;

Just select a an example from the menu and hit draw to get started. The l-systems are defined using my own, generic, "mathy" language.

L-system is great, but as a simpler alternative you can use fractals. You can see a sample fractal tree generator here: https://github.com/bonenberg/Recursive-Oppenheimer-Tree I wrote it many years ago after reading Peter E. Oppenheimer paper.

Interesting reference. But the point of my app is specifically to play around with, and learn about, l-systems. I will leave fancy image generation to the 3D folks.

Your website is superb, I'm playing with l-systems there right as we speak ( ͡° ͜ʖ ͡°)

Thanks. Much appreciated for a project that just takes forever to get to a point where I care or dare to share.

You can use L-systems to make music in TidalCycles

https://github.com/tidalcycles/Tidal/blob/67c344884dec661470...

I wrote a python tutorial on L-systems a while back if anyone is interested: https://bitaesthetics.com/posts/fractal-generation-with-l-sy...

L-Systems are context free grammars. There is a generic OSS 3D parser for context free grammars called Structure Synth[1]. It is based on Context Free[2] which is also OSS but 2D only and very powerful. It had non context free features added to the grammar in recent years.

[1] structuresynth.sourceforge.net

[2] contextfreeart.org

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