[GRASS-dev] instructions for programming of a g.gui.* module

[Moritz Lennert]

On 17/10/16 18:10, Anna Petrášová wrote:
> On Mon, Oct 17, 2016 at 11:59 AM, Moritz Lennert
> <mlennert at club.worldonline.be> wrote:
>> Hi,
>>
>> A computer science student of our university will probably start working on
>> an active learning framework for image classification in GRASS. This means
>> (in brief) selecting some pixels/objects and assigning them to a class,
>> using them to train a machine learning classifier and then identifying those
>> unclassified pixels/objects that would best improve the classification if
>> the user assigned them a class.
>>
>> There will, therefore, be some interaction between the user and the GUI and
>> I was wondering if there is some howto explaining how to approach the coding
>> of a g.gui.* module. I know there is the GUI part of the programmers manual
>> [1], but this is "just" a list of functions and classes, but no
>> introduction.
>>
>> Any pointers ?
>
> I believe the only thing there is is this example of GUI application:
> https://trac.osgeo.org/grass/browser/grass/trunk/doc/gui/wxpython/example
>
> but I am pretty sure it needs to be updated, because it's couple years old.

Well, for starters,

make MODULE_TOPDIR=../../../../dist.x86_64-pc-linux-gnu/

gives me:

Traceback (most recent call last):
   File 
"/home/mlennert/SRC/GRASS/grass_trunk/dist.x86_64-pc-linux-gnu/scripts/g.gui.example", 
line 45, in <module>
     from core.utils import _, GuiModuleMain
ImportError: cannot import name GuiModuleMain

I'll look at this more in detail when I have the time...

Moritz