Hi, Does anyone use spgrass6 with GRASS 7 and R?
The documentation for spgrass6 states it is for GRASS6+, and if I recall correctly I saw Dr. Bivand mention that it works well with GRASS7. (There were some threads from 2009 where spgrass6 wasn't working with GRASS7 yet, but I assumed that information was out of date.) So I figured I was doing something wrong with the library and package installation, I just can't figure out what. I'm new to Debian/Unix. I could post to R-sig-Geo if that is a better place to discuss this. Thanks, Eric > ------------------------------ > > Message: 3 > Date: Mon, 20 Feb 2012 18:59:54 +0100 > From: Tom Gottfried <[email protected]> > To: [email protected] > Subject: Re: [R-sig-Debian] readVECT6 and readRAST6 fails with R and > GRASS 7 ??? > Message-ID: <[email protected]> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Hi, > > spgrass6, readRAST6 and readVECT6 have a "6" in their name that refers > to GRASS 6. GRASS 7 seems to be quite different from GRASS 6. That, I > suppose, is the cause of what you see. > > HTH, > Tom > > Am 20.02.2012 18:28, schrieb Eric Momsen: > > Hello all, > > > > I'm having troubles getting R to load data from GRASS 7. I suspect I > have > > installed something wrong, but can't figure out what. Any suggestions > for > > what I could look for or how to trouble shoot this? Thanks in advance > for > > any help! > > > > After having other issues last week, we have upgraded Debian to the > testing > > version. The other problems are solved, but now I can't get readVECT6 > and > > readRAST6 to work. > > > > I have followed the instructions at > http://grass.osgeo.org/wiki/R_statistics - > > first under the Debian instructions to use apt-get to install some of the > > packages and others via R. After that didn't work, I tried the ctv > > package to install the Spatial view (Core only). The results are the > same. > > I can execute GRASS commands, but the readVECT6 crashes R, and > readRAST6 > > gives an error. (I believe there are probably two separate causes.) > > > > -Eric > > > > (I've left the version numbers here but deleted much of the output > > data...spearfish70 is simply spearfish60 after running v.build.all) > > > > Welcome to GRASS 7.0.svn > > GRASS 7.0.svn (spearfish70):~> R > > R version 2.14.1 (2011-12-22) > > Platform: x86_64-pc-linux-gnu (64-bit) > >> library(spgrass6) > > Loading required package: sp > > Loading required package: XML > > GRASS GIS interface loaded with GRASS version: GRASS 7.0.svn50847M (2012) > > and location: spearfish70 > >> gmeta6() > > gisdbase /home/shared/research/GRASSDATA > > location spearfish70 > > ...etc... > >> system("g.list vect") > > ---------------------------------------------- > > > > vector files available in mapset<PERMANENT>: > > archsites roads t_9961_200 t_9961_500 > > t_roads_prime > > bugsites roads_net t_9961_200_all t_9961_500_all > > t_roads_second > > ...etc... > > > >> system("g.list rast") > > > >> streams<- readVECT6("streams", type = "line,boundary", remove.duplicates > > = FALSE) > > Loading required package: rgdal > > Geospatial Data Abstraction Library extensions to R successfully loaded > > Loaded GDAL runtime: GDAL 1.7.3, released 2010/11/10 > > Path to GDAL shared files: /usr/share/gdal/1.7 > > Loaded PROJ.4 runtime: Rel. 4.7.1, 23 September 2009, [PJ_VERSION: 470] > > Path to PROJ.4 shared files: (autodetected) > > GRASS 7.0.svn (spearfish70):~> > > > > > > Started up R again...and tried readRAST6 > > > >> spear<- readRAST6(c("elevation.dem", "geology"), cat = c(FALSE, TRUE)) > > Loading required package: rgdal > > Geospatial Data Abstraction Library extensions to R successfully loaded > > Loaded GDAL runtime: GDAL 1.7.3, released 2010/11/10 > > Path to GDAL shared files: /usr/share/gdal/1.7 > > Loaded PROJ.4 runtime: Rel. 4.7.1, 23 September 2009, [PJ_VERSION: 470] > > Path to PROJ.4 shared files: (autodetected) > > Command: r.info > > Description: Outputs basic information about a raster map. > > Keywords: raster, metadata, history > > Parameters: > > name: map, type: string, required: yes, multiple: no > > keydesc: name, keydesc_count: 1 > > [Name of raster map] > > Flags: > > name: g [Print raster array information only] {FALSE} > > name: r [Print range only] {FALSE} > > name: e [Print extended metadata information only] {FALSE} > > name: h [Print raster history instead of info] {FALSE} > > name: verbose [Verbose module output] {FALSE} > > name: quiet [Quiet module output] {FALSE} > > Error in doGRASS(cmd, flags = flags, ..., parameters = parameters, > echoCmd > > = echoCmd) : > > Invalid flag value: t > > > > ....so I tried running r.info which runs fine.... > > > >> system("r.info map=elevation.dem@PERMANENT") > > > +----------------------------------------------------------------------------+ > > | Layer: elevation.dem@PERMANENT Date: Tue Mar 14 07:15:44 > 1989 > > | > > | Mapset: PERMANENT Login of Creator: grass > > | > > | Location: spearfish70 > > | > > | DataBase: /home/shared/research/GRASSDATA > > | > > | Title: DEM (7.5 minute) ( elevation ) > > | > > ....etc.... > > > > [[alternative HTML version deleted]] > > > > _______________________________________________ > > R-SIG-Debian mailing list > > [email protected] > > https://stat.ethz.ch/mailman/listinfo/r-sig-debian > > > [[alternative HTML version deleted]] _______________________________________________ R-SIG-Debian mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-debian
