Force-directed graph layout

Can anyone point me to a Scheme implementation of a force-directed graph
layout algorithm?  (Preferably LGPL or less restrictive, rather than GPL.)

Thanks,
Neil

Neil Jerram wrote:

> Can anyone point me to a Scheme implementation of a force-directed grap=
h=20
> layout algorithm?  (Preferably LGPL or less restrictive, rather than GP=
L.)

This seems to be a perfect match for Joe's C to Scheme compiler.

[ducks]

--=20
Jens Axel S=F8gaard