Thank you David & Michael for your answers. It makes more sense now! Cheers, Boris
2012/6/6 David L Carlson <dcarl...@tamu.edu> > You might try R-Sig-Geo for the reasons, but you need to include the UTM > zone to convert: > > SP<-SpatialPoints(cbind(126.59,-14.30),proj4string=CRS("+proj=longlat")) > SP > > SpatialPoints: > coords.x1 coords.x2 > [1,] 126.59 -14.3 > Coordinate Reference System (CRS) arguments: +proj=longlat +ellps=WGS84 > > coordinatesUTM<-spTransform(SP,CRS("+proj=utm +zone=52")) > coordinatesUTM > > SpatialPoints: > coords.x1 coords.x2 > [1,] 240015.6 -1582256 > Coordinate Reference System (CRS) arguments: +proj=utm +zone=52 > +ellps=WGS84 > > ---------------------------------------------- > David L Carlson > Associate Professor of Anthropology > Texas A&M University > College Station, TX 77843-4352 > > > > > -----Original Message----- > > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > > project.org] On Behalf Of Boris Beranger > > Sent: Tuesday, June 05, 2012 3:29 AM > > To: R-help@r-project.org > > Subject: [R] Converiting longitude/latitude to utm > > > > Dear all, > > > > I have been trying to convert coordinates from longitude/latitude to > > utm > > but I got an error. As soon as the longitude coordinate is greater than > > 90, > > I get the folloowing error message: "error in pj_transform: latitude > > or > > longitude exceeded limits" > > > > Here is what I did: > > > > SP<-SpatialPoints(cbind(126.59,- > > 14.30),proj4string=CRS("+proj=longlat")) > > coordinatesUTM<-spTransform(SP,CRS("+proj=utm")) > > > > Error in spTransform(SP, CRS("+proj=utm")) : > > error in pj_transform: latitude or longitude exceeded limits > > > > Can someone explain me what I did wrong? I am using coordinates of > > Australia so the range of my longitudes is around [110,150] and the one > > of > > my latitudes [-10,-45]. > > > > Thanks in advance, > > > > Cheers, > > Boris > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@r-project.org mailing list > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide http://www.R-project.org/posting- > > guide.html > > and provide commented, minimal, self-contained, reproducible code. > > [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.