[GRASS-stats] Error when starting grass from R (grass installed thru osgeo4w)

[Roger Bivand]

Sorry for the delay, now have access to an old laptop with Windows. When do you need this resolved?

Roger

Roger Bivand
Norwegian School of Economics
Bergen, Norway



Fra: Veronica Andreo
Sendt: mandag 17. september, 02.20
Emne: Re: [GRASS-stats] Error when starting grass from R (grass installed thru osgeo4w)
Til: Helmut Kudrnovsky
Kopi: grass-stats at lists.osgeo.org


Hi again,

So, I tested as suggested:
1. Open R console within OSGeo4W Shell,
2. library(rgrass7)
3. initGRASS(gisBase = 'C:/OSGeo4W64/apps/grass/grass-7.4.0', gisDbase = 'C:/Users/RETA/Documents/grassdata', location = 'nc_spm_08_grass7', mapset = 'user1', SG='elevation')

and I now get:
unused argument (gisDbase = 'C:/Users/RETA/Documents/grassdata')

anything else to test/set?

best,
Vero


El dom., 16 sept. 2018 a las 23:15, Helmut Kudrnovsky (<hellik at web.de<mailto:hellik at web.de>>) escribió:
>OK, thanks for confirming that OSGeo4W remains feasible for rgrass7; I don't
have access. Does usability >include initGRASS()? This would be most fragile
because environment variables are being set, and >condition on Windows and
OSGeo4W.

R within a GRASS session works quite well so far.

did a fresh svn up of

svn://r-forge.r-project.org/svnroot/spgrass<http://r-forge.r-project.org/svnroot/spgrass>

and quickly screened pkg\rgrass7\R\initGRASS.R:

e.g.

        Sys.setenv(GRASS_PROJSHARE=paste(Sys.getenv("GISBASE"),
            "\\proj", sep=""))

AFAIK at least the GRASS7.4.x line doesn't use anymore an own copy of the
PROJSHARE files; instead it uses the PROJ files itself; that's for all
platforms (linux, MacOS, MS Windows, ...).

e.g. in OSGeo4W 64bit it's defined as:

SET OSGEO4W_ROOT=C:\OSGeo4W64
set GRASS_PROJSHARE=%OSGEO4W_ROOT%\share\proj

only in the standalone installer, it's still defined as:

set GRASS_PROJSHARE=%GISBASE%\share\proj

because it's bundled in the installer.

e.g.

            Sys.setenv(PATH=paste(Sys.getenv("GISBASE"), "\\extrabin;",
                Sys.getenv("PATH"), sep=""))

there is no C:\OSGeo4W64\apps\grass\grass-7.4.1, because all of the
dependencies etc are living e.g. in
C:\OSGeo4W64\bin, C:\OSGeo4W64\lib, ...

I'm not sure about this one:

[...]
        Sys.setenv(GISBASE=gisBase)
        if (missing(home)) home <- Sys.getenv("USERPROFILE")
[...]
        Sys.setenv(GISRC=paste(Sys.getenv("HOME"), "\\.grassrc7", sep=""))

in winGRASS (standalone, OSGeo4W), the rc file lives in
C:\Users\YourUserName\AppData\Roaming\GRASS7 and not in %USERPROFILE%

and it seems around these lines:

[...]
        Sys.setenv(GISRC="junk")
        cat("GISDBASE:", getwd(), "\n", file=Sys.getenv("GISRC"))
        cat("LOCATION_NAME: <UNKNOWN>", "\n", file=Sys.getenv("GISRC"),
            append=TRUE)
        cat("MAPSET: <UNKNOWN>", "\n", file=Sys.getenv("GISRC"),
            append=TRUE)
        gisrc <- ifelse (use_g.dirseps.exe, system(paste("g.dirseps.exe -g",
            shQuote(Sys.getenv("GISRC"))), intern=TRUE),
            Sys.getenv("GISRC"))
[...]

initGRASS gets in trouble in OSGeo4W.



-----
best regards
Helmut
--
Sent from: http://osgeo-org.1560.x6.nabble.com/Grass-Stats-f4049448.html
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