a problem with g.gisenv while running grass from R via spgrass6 on macosx

Hi,

I am trying to run grass from R via the spgrass6 package on MacOSx while
following this nice Wiki. I have installed the spgrass6 package from source
on mac. grass-6.4 is also installed via the great website of KingChaos (
http://www.kyngchaos.com/software/grass).

library(spgrass6)

Loading required package: sp
Loading required package: rgdal
Geospatial Data Abstraction Library extensions to R successfully loaded
Loaded GDAL runtime: GDAL 1.7.2, released 2010/04/23
Path to GDAL shared files:
/Library/Frameworks/GDAL.framework/Versions/1.7/Resources/gdal
Loaded PROJ.4 runtime: Rel. 4.7.1, 23 September 2009
Path to PROJ.4 shared files: (autodetected)
Loading required package: XML
GRASS GIS interface loaded with GRASS version: (GRASS not running)

when trying the following:

loc <- initGRASS("/Applications/GRASS-6.4.app", home=tempdir())

list.files("/home/rsb/topics/grass/g640/grass-6.4.0")

I obtain the following error:
/bin/sh: g.gisenv: command not found
/bin/sh: g.gisenv: command not found
/bin/sh: g.gisenv: command not found
/bin/sh: g.gisenv: command not found
/bin/sh: g.gisenv: command not found
Error in system(cmd0, intern = TRUE) : error in running command
Error in parseGRASS(cmd) : g.region not found
sh: g.region: command not found

Is there a solution?

I am learning GRASS at the moment to visualise and explore 3D terrestrial
point lidar datasets (las format) and analyse subsets via R.

Thanks,
Jan

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On Mon, 22 Nov 2010, Jan Verbesselt wrote:

Hi,

I am trying to run grass from R via the spgrass6 package on MacOSx while
following this nice Wiki. I have installed the spgrass6 package from source
on mac. grass-6.4 is also installed via the great website of KingChaos (
http://www.kyngchaos.com/software/grass).

library(spgrass6)

Loading required package: sp
Loading required package: rgdal
Geospatial Data Abstraction Library extensions to R successfully loaded
Loaded GDAL runtime: GDAL 1.7.2, released 2010/04/23
Path to GDAL shared files:
/Library/Frameworks/GDAL.framework/Versions/1.7/Resources/gdal
Loaded PROJ.4 runtime: Rel. 4.7.1, 23 September 2009
Path to PROJ.4 shared files: (autodetected)
Loading required package: XML
GRASS GIS interface loaded with GRASS version: (GRASS not running)

when trying the following:

loc <- initGRASS("/Applications/GRASS-6.4.app", home=tempdir())

What this is saying is that the string is not "the directory path to GRASS binaries and libraries" for your platform. For me:

list.files("/home/rsb/topics/grass/g640/grass-6.4.0")

[1] "AUTHORS"           "bin"               "bwidget"
[4] "CHANGES"           "COPYING"           "docs"
[7] "driver"            "etc"               "fonts"
[10] "GPL.TXT"           "include"           "lib"
[13] "man"               "REQUIREMENTS.html" "scripts"
[16] "tools"

so when you see something similar for the directory path on your system, you will have found the incantation.

If you don't make progress, please consider moving this thread to the grass-stats list:

http://lists.osgeo.org/mailman/listinfo/grass-stats

where there may be users with the same platform.

Roger

I obtain the following error:
/bin/sh: g.gisenv: command not found
/bin/sh: g.gisenv: command not found
/bin/sh: g.gisenv: command not found
/bin/sh: g.gisenv: command not found
/bin/sh: g.gisenv: command not found
Error in system(cmd0, intern = TRUE) : error in running command
Error in parseGRASS(cmd) : g.region not found
sh: g.region: command not found

Is there a solution?

I am learning GRASS at the moment to visualise and explore 3D terrestrial
point lidar datasets (las format) and analyse subsets via R.

Thanks,
Jan

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-- 
Roger Bivand
Economic Geography Section, Department of Economics, Norwegian School of
Economics and Business Administration, Helleveien 30, N-5045 Bergen,
Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43
e-mail: Roger.Bivand at nhh.no