On Thu, Jul 9, 2009 at 9:23 PM, Paul Hiemstra<p.hiems...@geo.uu.nl> wrote: > Hi, > > More in general you need to take a look at the sp-pacakge for Spatial > classes in R. Once your data is in these classes you can use spTransform > from the rgdal pacakge to perform the projection. spTransform uses the proj4 > library. You need to find the so called proj4 strings describing both the > source and target projection. >
There seems to be several ways of reprojecting/coordinate transforming in R... package:sp, in ?is.projected, mentions an spproj package which I can't find. Is that just a documentation error?... package:rgdal has spTransform as mentioned... package:proj4 seems to be an independent interface to the PROJ4 library. Barry _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
