On Mon, 2009-08-24 at 13:56 +0200, Giacomo Piva wrote: > Hi all, > I'm writing because I have a problem with the GEOSIntersection function. > I'm using this function as follows: 1. You should always provide compilable code, if at all possible, when asking for help. 2. I think GEOSGeom_createLinearRing does not copy the input argument.