Notes published
December****************************************************************************************************************************************************************************************************, 2019
Biologist
Aristid Lindenmayer
createdLindenmayer systems, orL-systems, in as a way of formalizing patterns of bacteria growth. L-systems are a recursive, string-rewriting framework, commonly used today in computer graphics to visualize and simulate organic growth, with applications inplant development,procedural content generation, andfractal-like art.************ (A rendering of several L-systems.)
The following describes L -system fundamentals, how they can be visually represented, and several classes of L-systems, like
andstochastic L-systems. Much of the following has been derived fromPrzemyslaw Prusinkiewicz and Lindenmayer’s seminal work,The Algorithmic Beauty of Plants************************ String Rewriting [ F] ********************************
Fundamentally, an L-system is a set of rules that describe how to iteratively transforms a string of symbols. A string, in this context, is a series of symbols, like “**************************** (**************************************
(“or”) **************************** (************************************ (a) b (************************************** (a) *************************************** (b)
Productions in this rewriting system can be described with “before” and “after” states, often described as the predecessor and ************************************************ (successor) *************************************************; for example, the production
************abrepresents that the symbol
(a)
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