Try argument "mask". This should make all non-polygon area NA (assuming that's what you want).
On Sun, Oct 31, 2010 at 2:08 AM, Manuel Spínola <mspinol...@gmail.com>wrote: > Dear list members, > > I am trying to use polygonsToRaster function but I am not sure how to > use it. > I want to convert a shapefile to raster. The shapefile is called > "cobertura" and I have another of the same extent called "corredor". > Should I do: > > r = raster(corredor) > r = polygonsToRaster(cobertura, r) > > Should I use any other specific argument like overlap or getCover? > > Best, > > Manuel > > -- > *Manuel Spínola, Ph.D.* > Instituto Internacional en Conservación y Manejo de Vida Silvestre > Universidad Nacional > Apartado 1350-3000 > Heredia > COSTA RICA > mspin...@una.ac.cr > mspinol...@gmail.com > Teléfono: (506) 2277-3598 > Fax: (506) 2237-7036 > Personal website: Lobito de río > <https://sites.google.com/site/lobitoderio/> > Institutional website: ICOMVIS <http://www.icomvis.una.ac.cr/> > > [[alternative HTML version deleted]] > > > _______________________________________________ > R-sig-Geo mailing list > R-sig-Geo@stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/r-sig-geo > > -- In God we trust, all others bring data. [[alternative HTML version deleted]]
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