[GRASS-user] GRASS Location from scratch: Solved

[William Kyngesburye]

On Jan 20, 2009, at 9:00 AM, Paul Kelly wrote:

> On Tue, 20 Jan 2009, "Peter Löwe" wrote:
>
>> Hi,
>>
>> here is a working (bash-)scripting approach on how to conjure up a  
>> minimalistic xy-location out of thin air and to transmogrify the  
>> projection (f.e. EPSG:4326):
>
> It doesn't really need to be so long though - in recent versions of  
> GRASS g.proj doesn't require a dummy location in order to run. This  
> should do it almost as well:
>
> ###################################################################################
> ## LOCATION SETUP PREPARATION (FILESYSTEM)
>
> ##################################################################################
> #Set up a temporary grassrc-File:
>
> echo "GISDBASE: $CURRENT_DIR
> " > $TMPDIR/$THE_GRASSRC
>
> #################################################################################
> # Export paths to GRASS binaries and libraries:
>
> export GISBASE=/opt/grass

Maybe pick it up from an exported GISBASE in the shell?  - to  
accomodate different install locations.

>
> export PATH=$PATH:$GISBASE/bin:$GISBASE/scripts
> export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$GISBASE/lib
>
Also note that this should be DYLD_LIBRARY_PATH for OSX.  Maybe  
something could be used from init.sh:

SYSTEM=`uname -s`
case $SYSTEM in
Darwin*)
	MACOSX=1
	;;
esac

if [ "$MACOSX" ] ; then
if [ ! "$DYLD_LIBRARY_PATH" ] ; then
   DYLD_LIBRARY_PATH="$GISBASE/lib"
else
   DYLD_LIBRARY_PATH="$GISBASE/lib:$DYLD_LIBRARY_PATH"
fi
else
if [ ! "$LD_LIBRARY_PATH" ] ; then
   LD_LIBRARY_PATH="$GISBASE/lib"
else
   LD_LIBRARY_PATH="$GISBASE/lib:$LD_LIBRARY_PATH"
fi
fi

>


> g.proj -c epsg=4326 location=$THE_LOCATION

Another idea: take the projection option as a script argument.  It  
could be any of the valid g.proj options, something like (say the  
script is "createloc"):

createloc epsg=4326

-----
William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
http://www.kyngchaos.com/

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