hi, I'm trying to understand how to use g.region n=n+x s=s-x e=e+x w=w-x in a python script, where x is a user option.
some code snippets: #%option #% key: region_extension #% type: double #% key_desc: float #% description: region extension #% required : no #% answer: 5000 #%end [...] regext = options['region_extension'] [...] grass.run_command('g.region', n = n+regext, s = s-regext, e = e+regext, w = w-regext) doesn't work with following error: Traceback (most recent call last): File "C:\Users\myricaria\AppData\Roaming\GRASS7\addons\scr ipts\v.habitat.dem.py", line 202, in <module> sys.exit(main()) File "C:\Users\myricaria\AppData\Roaming\GRASS7\addons\scr ipts\v.habitat.dem.py", line 159, in main grass.run_command('g.region', n = n+regext, NameError: global name 'n' is not defined with current_region = grass.region() n = current_region["n"] s = current_region["s"] e = current_region["e"] w = current_region["w"] it could be defined, but then it says Traceback (most recent call last): File "C:\Users\myricaria\AppData\Roaming\GRASS7\addons\scr ipts\v.habitat.dem.py", line 202, in <module> sys.exit(main()) File "C:\Users\myricaria\AppData\Roaming\GRASS7\addons\scr ipts\v.habitat.dem.py", line 159, in main grass.run_command('g.region', n = n+regext, TypeError: unsupported operand type(s) for +: 'float' and 'str' any ideas/pointers? thanks. ----- best regards Helmut -- View this message in context: http://osgeo-org.1560.x6.nabble.com/how-to-do-g-region-n-n-defined-by-user-input-option-in-a-python-script-tp5139216.html Sent from the Grass - Dev mailing list archive at Nabble.com. _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev