Thanks Andrea for you message: On Sat, 7 Oct 1995 18:54:08 +0000 Andrea Giacomelli said: >Check s.voronoi > >-- > Andrea Giacomelli > andreag at idra6.iar.polimi.it > http://idra6.iar.polimi.it:8080/~andreag > tel: +39-2-23996233 fax: +39-2-23996207 I can't find s.voronoi in the reference manual. Would you know where I could find it? Thanks, Luc