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

[Anna Petrášová]

On Mon, Oct 17, 2016 at 3:16 PM, Moritz Lennert
<mlennert at club.worldonline.be> wrote:
> 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 think I removed GuiModuleMain, which tried to fork the process
because it didn't work on other platforms than linux
>
> I'll look at this more in detail when I have the time...
>
> Moritz