[plt-scheme] Recursion, graphics, and combinators

The best we have are the functional turtles that
Robby design a few years back. -- Matthias


On Jan 29, 2004, at 5:45 AM, Noel Welsh wrote:

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> Hi all,
>
> I've recently become interested in generating
> recursive graphics and in particular Lindenmayer
> Systems (L-systems).  Most of this work uses turtle
> graphics, which are imperative in nature and so lack
> compositionality.  Is anyone aware of functional
> approaches to these tasks?
>
> (See many pretty pictures off
> http://www.cpsc.ucalgary.ca/Research/bmv/vmm/plates.html
> for what some people do with L-systems)
>
> TIA,
> Noel
>
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