# Graphical applications of L-systems

Przemyslaw Prusinkiewicz
## Abstract

A new method for generating pictures is presented and illustrated
with examples. The idea is to generate a string of
symbols using an L-system, and to interpret this string as a
sequence of commands which control a "turtle". Suitable
generalizations of the notions of the L-system and of a turtle
are introduced. The resulting mathematical model can be
used to create a variety of (finite approximations of) fractal
curves, ranging from Koch curves, to classic space-filling
curves, to relatively realistic-looking pictures of plants and
trees. All these pictures are defined in a uniform and compact
way.

## Reference

P. Prusinkiewicz: Graphical applications of L-systems. *Proceedings
of Graphics Interface '86 / Vision Interface '86*, pp. 247-253.
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