convert long/lati to UTM
On Thu, Jul 9, 2009 at 9:23 PM, Paul Hiemstra<p.hiemstra at 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