Hi, I would like to announce that the strasheela composition system has a new fomus backend (in svn). You'll find further informations on its home page http:// strasheela.sourceforge.net/. Particularly interesting might by: http://strasheela.sourceforge.net/strasheela/doc/StrasheelaExamples.html There is already one more example in svn that deals with a combination of l-systems and constraints. Cheers, Kilian