[GRASS-user] manually selecting a region

[Anna Petrášová]

On Tue, Mar 7, 2017 at 7:41 AM, Ken Mankoff <mankoff at gmail.com> wrote:
>
> On Tue, Mar 7, 2017 at 4:11 AM, Moritz Lennert
> <mlennert at club.worldonline.be> wrote:
>>
>> AFAIK, d.where does not allow direct interaction with the display anymore.
>> It "just" takes screen coordinates and outputs them as map coordinates. In
>> GRASS 6 you could get the screen coordinates by clicking on the d.mon
>> display, but in GRASS 7 this is handled by the GUI (g.gui or d.mon wx*). In
>> other words you chose the GUI interrogation tool and when you click on the
>> monitor, it launches d.where and you get the coordinates. You can ask for
>> these coordinates to be redirected to the console.
>>
>> I agree that the current solution is not ideal. For example, it is not
>> straightforward how to collect the info into a file. Also: the output is not
>> really as machine-parsing friendly as it could.
>>
>> See https://trac.osgeo.org/grass/ticket/3310 and add to it if you think
>> something is missing.
>
>
> Thanks for the reply. I will think about and add suggestions to the ticket.
> Let me know if I can help debug the "ERROR: Vector digitizer not available.
> cannot import name GV_LINES" issue.
>

That seems to be problem with ctypes, I've seen this on Mac before. Do
you compile grass on your own, or use homebrew? I know some students
used osgeo4mac and they couldn't use digitizer, 3D view and pygrass at
all. But when I compile GRASS myself, it works.

Anna


>   -k.
>
> _______________________________________________
> grass-user mailing list
> grass-user at lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/grass-user