!SPAM: Re: merging polygons from two shapefiles and generating new polygons for intersecting areas
Colin, given two SpatialPolygonsDataFrame objects a and b, how do I get the SpatialPolygonsDataFrame with the polygon-polygon overlay? Using the original poster phrasing, how do I merge these two? Best regards,
On 11/14/2010 09:53 AM, rundel wrote:
You should be able to achieve all of this using the rgeos package, it has functionality to create new polygons based on the intersection, union, etc of other polygons. Currently you can download the source from r-forge and install the package manually, but it will also be available on cran in the very near future. If you run into any difficulties or have questions, please let me know. -Colin
Edzer Pebesma Institute for Geoinformatics (ifgi), University of M?nster Weseler Stra?e 253, 48151 M?nster, Germany. Phone: +49 251 8333081, Fax: +49 251 8339763 http://ifgi.uni-muenster.de http://www.52north.org/geostatistics e.pebesma at wwu.de