Rewriting Grammars

Building Blocks

Fröbels Spielgaben

Friedrich Fröbel

Wiener Bruchrechentafel

Bruchrechentafel für Blinde

Wiener Bruchrechentafel auf Thingiverse

![](http://thingiverse-production.s3.amazonaws.com/renders/ea/74/b7/60/15/fraction_bars_preview_featured.jpg =500x)

It's a geometric constraint system!

Anker Steinbaukasten

Anchor Stone Blocks

Unbekannter Entwurf 80

Inspired by Fröbel
Made in Rudolstadt, Thüringen
Walter Gropius loved to play with those

Constructions

Stiny's Shape Grammars

Kindergarden Grammars (PDF)

Lindenmeyer Systems

Intro to L-Systems (PDF)

Context Free Art

Context Free Art Page

Structure Synth

Hands-On

Lindenmeyer Systems

Processing Library
3D Hilbert Curve (Open Processing)

Context Free Grammars

Structure Synth
Context Free
Context Free Art Cheatsheet (PDF)

Subdivision Systems

2D Subdivision
3D Subdivision

Literature

Aristid Lindenmeyer: The Algorithmic Beauty of Plants, 1990
Stiny and Gibbs: Kindergarden Grammars, 1980

Exercises

You can find the exercises here