http://wald.intevation.org/tracker/?func=detail&atid=188&aid=428&group_id=21
> code R item #428, was opened at 2007-06-16 18:39 > Submitted By: Daniel Victoria (dvictori) > Summary: Warn about wrong epsg code when creating a location in grass > 6.2 > GRASS component: startup .. > When creating a location based on a georeferenced files, if the EPSG > code is wrong there is no clear warning and no location gets created. in 6.2 lib/init/epsg_option.tcl.in calls this: exec -- $env(GISBASE)/etc/grass-xterm-wrapper -e \ $env(GISBASE)/etc/make_location_epsg.sh \ $epsg_code $epsgLocation $locpath >@stdout 2>@stderr; make_location_epsg.sh.in then checks if "g.proj -c" worked, and exits with an error if it didn't, but the xterm closes as soon as the script is done so you don't see the error message and epsg_option.tcl doesn't check the return code to make its own error message. One option is to be like grass-run.sh and do something like: if [ $EXIT_VAL -ne 0 ] ; then echo echo "ERROR: $1 exited abnormally. Press <enter> to continue." read fi but make_location_epsg.sh is not just used by the startup GUI, so making it interactive might be bad. A compromise might be to do that, but give the `read` a timeout: read -t 10 -n 1 -p "Press any key to continue ... (or wait 10 seconds)" but AFAIK -t and -n are not portable. maybe echo "ERROR: ..." sleep 5 ? :-/ We could catch the "exec grass-xterm-wrapper" in epsg_option.tcl.in and check the exit code (I've no idea how to do that correctly). That doesn't help show what the g.proj error was though, just that make_location_epsg.sh.in failed. > This feature is already present in 6.3. Could it be backported? No, in 6.3 it is totally different, a Tcl script makes the location. But maybe we can find another solution. > Also, if a wrong EPSG code is input a tmp directory sometimes is > created 6.2's lib/init/make_location_epsg.sh.in goes: [...] # create new location: g.proj -c proj4='+init=epsg:'$EPSG location=$LOCATION if [ $? -eq 1 ] ; then echo "An error occured. Stop." exit 1 fi #restore previous .$GRASSRC if test -f "$GISDBASE"/"$TEMPDIR"/$GRASSRC ; then mv "$GISDBASE"/"$TEMPDIR"/$GRASSRC "$HOME"/.$GRASSRC fi #cleanup: rm -rf $GISDBASE/$TEMPDIR [...] so cleanup isn't done if "g.proj -c" had an error. Hamish _______________________________________________ grass-dev mailing list [email protected] http://grass.itc.it/mailman/listinfo/grass-dev
