@Taron, thanks a lot ! brush #9 rules
@Pilou, for L-Systems scripting like the 3 examples above, if you can program or want to learn, you can have
exactly the same results for instance with Processing* including Java Robot Class** for moving the mouse pointer above Verve. For the rest of LNP features, in particular its amazing "constraint" system, i don't know...
(*) L-systems with Processing :
https://www.youtube.com/watch?v=f6ra024-ASY(**) Java mouse Robot inside Processing :
viewtopic.php?p=11070#p11070