You need to execute gpclibPermit() to enable gpclib. library(maptools) should have issued a warning to that effect.
Nikhil Kaza Asst. Professor, City and Regional Planning University of North Carolina nikhil.l...@gmail.com On Jun 9, 2010, at 3:34 PM, Thiago Veloso wrote: > Dear Nikhil, > > Thank you for your input. I tried your suggestion and received the > following error: > > > fortify(br) > Using UF_05 to define regions. > Error: isTRUE(gpclibPermitStatus()) is not TRUE > > > > Do you know what else could be done? > > Best wishes, > > Thiago. > > --- On Wed, 9/6/10, Nikhil Kaza <nikhil.l...@gmail.com> wrote: > > From: Nikhil Kaza <nikhil.l...@gmail.com> > Subject: Re: [R-sig-Geo] How to extract coordinates values from a > shapefile? > To: "Thiago Veloso" <thi_vel...@yahoo.com.br> > Cc: r-sig-geo@stat.math.ethz.ch > Date: Wednesday, 9 June, 2010, 16:00 > > Look at this. Not sure if this is indeed what you want or if you > actually have to unproject them. > > http://www.mail-archive.com/r-sig-geo@stat.math.ethz.ch/msg04715.html > > require(ggplot2) > fortify(br) > > > Nikhil Kaza > Asst. Professor, > City and Regional Planning > University of North Carolina > > nikhil.l...@gmail.com > > On Jun 9, 2010, at 2:45 PM, Thiago Veloso wrote: > > > Dear R colleagues, > > Does anyone know if it's possible to create a vector with > coordinate values extracted from a shape loaded with readShapePoly > command of "maptools" package? > > For example, the following code loads the shapefile containing > Brazilian states division: > > library(maptools)br<-readShapePoly("BR-map/3.shp") > > What I need to do is create a vector which contains all lat and > lon values inside this shapefile... > > Thanks in advance, > > Thiago Veloso. > > > > > > > > [[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
