Hi Peter, I've been doing this in postgis. Once you get used to it, its not too difficult. Load data with shp2pgsql (or use rgdal + RODBC or similar if you want to stay in R) and then create a new table to hold the results. After that you can do "insert into restab select buffer(the_geom, dist) from sourcetab" (that's from memory, so check the postgis docs).
THK On 9/2/07, Peter Adler <[EMAIL PROTECTED]> wrote: > Dear R gurus, > > I am very excited about all the spatials tools in R because they have > almost liberated me from ESRI products. One of the last things I have > yet to figure out how to do in R is to create buffers around polygons > (or just expand polygons). I searched the R-sig-geo archives (using > Google) for "polygon buffer" and "transform polygon" but haven't found > anything to get me started. Thanks in advance for your ideas, > > Peter > > -- > Peter Adler > Department of Wildland Resources > 5230 Old Main Hill > Utah State University > Logan, UT 84322 > tel: (435) 797-1021 / email: [EMAIL PROTECTED] > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > -- Timothy H. Keitt, University of Texas at Austin Contact info and schedule at http://www.keittlab.org/tkeitt/ Reprints at http://www.keittlab.org/tkeitt/papers/ ODF attachment? See http://www.openoffice.org/ _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
