spgrass6 and InitGrass

Op 6-10-2011 15:19, Roger Bivand schreef:

On Thu, 6 Oct 2011, Tomislav Hengl wrote:

I'm having problems using GRASS 6.4.1 from R under windows 7. I've
installed GRASS and then loaded spgrass6 and tried:

library(spgrass6)

Loading required package: XML
GRASS GIS interface loaded with GRASS version: (GRASS not running)

GRASS <- shortPathName(utils::readRegistry("SOFTWARE\\WOW6432NODE\\GRASS

6.4.1")$InstallPath)

GRASS

[1] "C:\\PROGRA~2\\GRASS6~1.1"

initGRASS(gisBase=GRASS, home=tempdir())

Error in initGRASS(gisBase = GRASS, home = tempdir()) :
Platform variant not supported

This means that we need to check deeper. What do:

.Platform$OS.type
Sys.getenv("OSTYPE")
library(spgrass6)
get("SYS", envir=spgrass6:::.GRASS_CACHE)

report? If the first is the string "windows", and the second is "", the
internal variable get("SYS", envir=spgrass6:::.GRASS_CACHE) is set to
"WinNat". I suspect that one or other of these doesn't hold, and that
SYS isn't being set to "WinNat" - on OSX and Linux, it is set to "unix";
"msys" and "cygwin" also exist, but are not supported for initGRASS(). I
only have access (now) to 32-bit XP.

I get:

.Platform$OS.type

[1] "windows"

Sys.getenv("OSTYPE")

  OSTYPE
"US_W764"

library(spgrass6)

Loading required package: XML
GRASS GIS interface loaded with GRASS version: (GRASS not running)

get("SYS", envir=spgrass6:::.GRASS_CACHE)

[1] ""

I could also try installing 32-bit GRASS GIS....

Roger

paste(R.version$version.string, Sys.info()[["sysname"]],

Sys.info()[["release"]])
[1] "R version 2.12.2 (2011-02-25) Windows 7 x64"

sessionInfo()[["otherPkgs"]][["spgrass6"]][["Version"]]

[1] "0.7-4"

(sorry Roger, it probably means that you have to update the package :(

T. Hengl
http://www.wewur.wur.nl/popups/vcard.aspx?id=HENGL001