**This definition explains how to create the famous Dragon Curve using RABBIT.**

The Heighway dragon (also known as the Harter–Heighway dragon or the Jurassic Park dragon) was first investigated by NASA physicists John Heighway, Bruce Banks, and William Harter. It was described by Martin Gardner in his Scientific American column Mathematical Games in 1967. Many of its properties were first published by Chandler Davis and Donald Knuth. It appeared on the section title pages of the Michael Crichton novel Jurassic Park.

Recursive construction of the curve

It can be written as a Lindenmayer system with

angle 90°

initial string FX

string rewriting rules

X = X+YF+

Y = −FX−Y.

**Hilber Curve Definition using RABBIT.**

A Hilbert curve (also known as a Hilbert space-filling curve) is a continuous fractal space-filling curve first described by the German mathematician David Hilbert in 1891,[1] as a variant of the space-filling curves discovered by Giuseppe Peano in 1890

Thanks for your examples! I learned a lot from them!

You’re welcome!

Very nice tutorial, thank you a lot! But can you tell me how to connect two rule panels to PR at the same time? When I’m trying to do so, one of them would disconnect…~ToT~

Hello this grasshopper definition for 2d hilber curve shows a straight line upon running.