Anna, you are right - it is the commands that include || that give an error, I finally had time to go through all of the examples in the lab - all the other ones work so far. Is this something that can be fixed?
Helena On Thu, Feb 14, 2013 at 12:25 PM, Anna Kratochvílová <[email protected]> wrote: > On Thu, Feb 14, 2013 at 5:41 PM, Helena Mitasova <[email protected]> wrote: >> >> >>> The wxGUI command line has its own rules (see shlex.split() >>> in the Python library documentation). >> >> running mapcalc through the wxGUI command line is where the students have >> problems in winGRASS >> (but it works on Mac) >> >> Helmut - can you please try this commands with data in nc_spm_08 >> just pasting them in command console in wingrass? >> - I had them originally in double quotes but that did not work for any >> expression, >> without quotes this works: >> >> g.region rast=landuse96_28m -p >> r.mapcalc >> ndvi3=float(lsat7_2002_40-lsat7_2002_30)/float(lsat7_2002_40+lsat7_2002_30) >> >> but the students complain that the ones with if statements don't >> (they say that they tried to put spaces around = and some other >> modifications but they keep getting syntax error): >> >> r.mapcalc urban1_30m=if(landuse96_28m==1,1,0)+if(landuse96_28m==2,2,0) >> r.mapcalc urban2_30m=if(landuse96_28m==1 || >> landuse96_28m==2,landuse96_28m,null() >> g.region rast=elevation -p >> r.mapcalc MASK=if((elevation<100 && elevation>60) && (landuse96_28m==1 || >> landuse96_28m==2),1,null()) > > One problem is caused by the pipe character. It seems that it is taken > as the end of a command and the rest is evaluated as another command. > I noticed the same problem when I wanted to execute a command > (run_command) with option separator = "|" from gui. It's a general > problem both in grass 6 and 7. > > Anna > >> >> so I am trying to figure out how to make r.mapcalc work in wingrass in >> command console >> (all of these expressions work if entered through the map calculator GUI) >> >> r.mapcalc is one of the most used commands so I think it is important to >> have it running reliably >> and it may be just a matter of special instrcutions for wingrass in the >> manual page, >> >> Thank you, Helena >> >>> >>> Map names can be quoted with either single or double quotes, so if the >>> expression is quoted with double quotes you can quote map names with >>> single quotes and vice-versa. >>> >>> -- >>> Glynn Clements <[email protected]> >>> _______________________________________________ >>> grass-dev mailing list >>> [email protected] >>> http://lists.osgeo.org/mailman/listinfo/grass-dev >> >> _______________________________________________ >> grass-dev mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/grass-dev -- Helena Mitasova Associate Professor Department of Marine, Earth and Atmospheric Sciences North Carolina State University 1125 Jordan Hall NCSU Box 8208 Raleigh, NC 27695-8208 http://skagit.meas.ncsu.edu/~helena/ email: [email protected] ph: 919-513-1327 (no voicemail) fax 919 515-7802 _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
