/linn

A small L-System (Lindenmayer System) interpreter written in Java

Primary LanguageJavaApache License 2.0Apache-2.0

linn

A small L-System (Lindenmayer System) interpreter written in Java.

linn LINN ({L}-System interpreter developed in {INN}sbruck) is a small, configurable L-System interpreter with the following features and design intentions:

  • Types of L-Systems supported:
    • Both context-free and context-sensitive ones
    • Both stochastic and deterministic ones
    • Parameterized ones
  • Written in Java 8 and offering
    • a fluent API for specifying and executing L-systems
    • an optional ANTLR4 grammar (for external, textual specification)
  • Core library has no noteworthy external dependencies (just Google Guava)
  • Core library does not include any render capabilities (although examples do)
  • User code injection to accomplish the following:
    • Condition evaluation for selecting production rules
    • Parameter values, default values and variables
    • Notification actions on productions and entire interations (e.g. useful for rendering, logging of results, etc.)
  • Syntax mostly based on what can be found in Prusinkiewicz, Lindenmayer, Hanan, et al., "The Algorithmic Beauty of Plants", freely available here
  • Examples will show both API usage, actual rendering in Processing/OpenGL and export of production results as meshes/point clouds

Status

Project status: 50%

What works so far:

  • Fluent API for defining L-systems and executing them
  • State change and post execution notifications to trigger e.g. rendering
  • Deterministic, context-free L-systems
  • Stochastic L-systems
  • Basic examples (2D) rendered as Processing sketches

Current milestone: further productions, parameterized rules, examples

Contents

That's it for now :)