What is an L-System ?

An L-system or Lindenmayer system is a parallel rewriting system and a type of formal grammar. An L-system consists of an alphabet of symbols that can be used to make strings, a collection of production rules that expand each symbol into some larger string of symbols, an initial "axiom" string from which to begin construction, and a mechanism for translating the generated strings into geometric structures. L-systems were introduced and developed in 1968 by Aristid Lindenmayer, a Hungarian theoretical biologist and botanist at the University of Utrecht. Lindenmayer used L-systems to describe the behaviour of plant cells and to model the growth processes of plant development. L-systems have also been used to model the morphology of a variety of organisms and can be used to generate self-similar fractals.

Wikipedia

How does this web site work ?

After entering the required data, click on the "Create now!" button and follow the commands below

Supported grammar :

  • letters from 'A' to 'T' : Draw a line
  • letters from 'a' to 't' : Move without drawing a line
  • + : Turn left
  • - : Turn right
  • | : Turn around
  • [ : Save state (position and direction)
  • ] : Restore last saved state

Commands

  • Generate L-System :

  • Translation :

  • Rotation :

    +

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