....After the helpful suggestion as to where to get libgrass, I am having
problems actually using it...
an example:
---------------------------
gdal_translate -of GTIFF cumulative_beam_irradiation ~/export/beam.tiff
ERROR 1: libgrass: MAPSET is not set
Aborted
---------------------------
Any ideas?
Thanks in advance!
Dylan Beaudette
Soil Science Graduate Group
University of California at Davis
Dylan Beaudette wrote:
....After the helpful suggestion as to where to get libgrass, I am having
problems actually using it...an example:
---------------------------
gdal_translate -of GTIFF cumulative_beam_irradiation ~/export/beam.tiff
ERROR 1: libgrass: MAPSET is not set
Aborted
---------------------------Any ideas?
[I haven't actually used libgrass, but as it's based upon the core
GRASS libraries, I assume that it requires a similar environment.]
At a minimum, the environment variable $GISRC has to refer to a file
which contains valid settings for GISDBASE, LOCATION_NAME and MAPSET.
This determines where maps are found.
When you start a GRASS session, $GISRC is set to ~/.grassrc5 (5.0.x
and early 5.3), ~/.grassrc53 (recent 5.3) or similar (it's a bit more
complex in 5.7), and that file is initialised from the settings
entered into the startup dialog.
So, if you use it from within a GRASS session, there shouldn't be any
problems. Or you can just point $GISRC at an existing ~/.grassrc53 (or
similar) file, and it will use those settings. Or you can create your
own file and point $GISRC at that.
It may (or may not) also be necessary for $GISBASE to point to the
root of a GRASS installation (e.g. /usr/local/grass5). If libgrass
needs to access certain data files or helper programs, it might use
$GISBASE to locate them.
--
Glynn Clements <glynn.clements@virgin.net>