Dear all,
I frequently want a thematic map for a variable that is not numeric,
and thus not permisaable in d.vect.thematic. In the past a simple
solution was to write a shell script with d.vect commands. For example,
I could create a file called litho.sh with the following lines
d.vect litho type=area where="litho='i'" col=red fcol=red
d.vect litho type=area where="litho='m'" col=orange fcol=orange
d.vect litho type=area where="litho='s'" col=yellow fcol=yellow
d.vect litho type=area where="litho='v'" col=green fcol=green
d.vect litho type=area where="litho='w'" col=blue fcol=blue
d.vect litho type=area where="litho='x'" col=purple fcol=purple
Then simply "sh litho.sh" would produce the reuslts I wanted, and
if I decided on a different color scheme it was a trival matter to edit
the file.
In wxgui this no longer works, as after the first one or two lines
GRASS reponds with
d.vect complete.
d.vect complete.
ERROR: No graphics device selected. Use d.mon to select graphics device.
ERROR: No graphics device selected. Use d.mon to select graphics device.
. . . . . . . . . . .
etc for each line in the file. Presumably it's some sort of a buffer
overflow problem, but it's making my library of scripts useless. Simply
pasting the contents of the file into the console with a mouse produces
the same result.
Anybody have any good ideas? I tried inserting a sleep command in
between each line of the script, and that worked if the sleep interval
was long enough (2 seconds in my case), but that seems a little silly.
I realize that I could add a column to the table with a numeric value
for each value, but I try to avoid arbitrary integer codes that require
a foreign key to another table to interpret.
Thanks, Dave
Arch linux 3.14.1-1-ARCH, GRASS 70-svn
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