[GRASS-dev] Modules

[Wolf Bergenheim]

Glynn Clements wrote:
 >
 > IOW, a hybrid Tcl/Tk+C (or Python+C) program will work, but a
 > combination of a pure Tcl/Tk (or Python) program with a pure C helper
 > program won't work.
 >

Not necessarily. When I first started writing v.edit my idea was that 
the GUI wold have an internal undo / changes stack, where it would 
record what the user has drawn. Then when the user chooses to save his 
work, v.edit would be called to commit these changes to the vector file.
That way v.edit the editor doesn't need to build partial topologies, 
etc, and that way the GUI doesn't need direct access to the vector 
library. The GUI would be mostly a visual drawing tool, and v.edit would 
then make sure that everything is topologically correct. Perhaps it's 
not a good idea, I don't know, but that was the original idea of how to 
use v.edit as a back end. After the save the editor would clear its 
change stack and read the vector file (using v.to.ascii, or some other 
interface like SWIG).

--Wolf

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<:3 )---- Wolf Bergenheim ----( 8:>