is there a bug in s.to.vect??? I need some help to use s.to.vect or does it exist a new version ??? thank you for your help DESCONNETS Jean-Christophe Laboratoire d'Hydrologie Centre ORSTOM BP 5045 34032 Montpellier cedex 01 TEL : + 33 67 61 75 29 FAX : + 33 67 41 18 06 E-Mail : desconne at orstom.orstom.fr