Donut holes
rgeos::gDifference should do what you are after. HTH, Simon -------------------------------- Simon O'Hanlon, BSc MSc Department of Infectious Disease Epidemiology Imperial College London St. Mary's Hospital London W2 1PG
From: r-sig-geo-bounces at r-project.org [r-sig-geo-bounces at r-project.org] on behalf of Tim [timbean at gmail.com]
Sent: 25 July 2012 21:11
To: r-sig-geo at r-project.org
Subject: [R-sig-Geo] Donut holes
Sent: 25 July 2012 21:11
To: r-sig-geo at r-project.org
Subject: [R-sig-Geo] Donut holes
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. _______________________________________________ R-sig-Geo mailing list R-sig-Geo at r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo