rabotin wrote:
> i'm trying to access to my grass data without launching an active grass
> session with a c program. I'm encoutering issues with the GRASS
> environment variables definitions.
> // Setting the grass environment
> G__setenv("GISDBASE","/home/rabotin/grassdata");
> G__setenv("LOCATION_NAME","Roujan");
> G__setenv("MAPSET","PERMANENT");
> G__setenv("MAPSET","simon9");
>
>
> G_gisinit(argv[0]);
> std::cout << G_getenv(G_gisdbase()) << std::endl;
> std::cout << G_getenv(G_location()) << std::endl;
> std::cout << G_getenv(G_mapset()) << std::endl;
> }
>
> When launshing this script in command terminal (outside an active grass
> session), I've got a segmentation fault.
You need to set the GISRC environment variable before you can access
GRASS settings with G_getenv() or G_setenv(). You will also need to
set GISBASE to the root directory of the GRASS installation so that
data files can be located.
There is a list of environment variables used by GRASS in the file
$GISBASE/docs/html/variables.html.
--
Glynn Clements <[email protected]>
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