[GRASS-dev] Re: [GRASS GIS] #632: Thematic Maps
GRASS GIS
trac at osgeo.org
Sat Mar 6 10:42:19 EST 2010
#632: Thematic Maps
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Reporter: voncasec | Owner: grass-dev at lists.osgeo.org
Type: defect | Status: new
Priority: normal | Milestone: 6.4.0
Component: wxGUI | Version: 6.4.0 RCs
Resolution: | Keywords: d.vect.thematic
Platform: Linux | Cpu: Unspecified
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Comment (by cmbarton):
I looked at FloatCanvas quite a while ago. It is nice, but it is much
simpler that we need for GRASS. The GRASS canvas does what FloatCanvas
does, but a lot more.
d.vect.thematic was written (by me and enhanced by others) as a shell
script wrapper around d.vect. When it was written, all GRASS displays
still used d.mon via an xterm. It still works in the display environment
of TclTk and wxPython canvases, but not as well.
We could add the newer module d.thematic.area to the layer tree
selections. I've done that for GRASS 7. I don't know if that would be
permitted for GRASS 6.4 as it is sort of a feature change (though it
shouldn't break anything). We could also enhance d.vect.thematic by
'Pythonizing' it. Glynn has done that for GRASS 7, but I haven't yet had
the chance to test it.
Ultimately, we are aware that we need to create a new and improved Python
script or an extended C module. As of a few days ago, I think that the C
module seems to be the direction we are headed. Any help would be
appreciated.
Michael
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Ticket URL: <http://trac.osgeo.org/grass/ticket/632#comment:6>
GRASS GIS <http://grass.osgeo.org>
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