Can somebody suggest a method for subtracting one SpatialPolygon* object from another, so that I'm left with a polygon with a donut hole? I can't seem to find one. Thanks. -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/Donut-holes-tp7580607.html Sent from the R-sig-geo mailing list archive at Nabble.com.