Dear All, I have been using the crop function in the raster package, but haven't figured out yet how this function deals with pixels that falls on the edge of a polygon.
Thanks, Paulo On Thu, Oct 14, 2010 at 12:42 PM, Manuel Spínola <mspinol...@gmail.com>wrote: > Thank you very much Robert. > That's works perfect. > > Manuel > > On 14/10/2010 10:21 a.m., Robert J. Hijmans wrote: > > Manuel, > > > > if "costarica" is a SpatialPolygons* object, you can do: > > > > r<- raster("bio1_23.bil") > > cr<- crop(r, costarica) > > > > Robert > > > > On Thu, Oct 14, 2010 at 8:16 AM, Manuel Spínola<mspinol...@gmail.com> > wrote: > >> Dear list members, > >> > >> I download bioclim data in a raster format (estension: .bil) and I would > >> like to clip the variables to a ploygon stored as a shapefile (Costa > >> Rica outline). > >> How can I do that? > >> > >> I read the raster file like this: > >> > >> x<- readGDAL("bio1_23.bil") > >> > >> Thank you very much in advance. > >> 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 > >> > >> > > > -- > *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 > > [[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