[QGIS-Developer] Interaction API?

[andrea antonello]

Otherwise it is very well be possible to implement a "pipe" into QGIS / API
>> for QGIS using various techniques (maybe even expose iface and some nasty
>> "exec"ing :D ). E. g. check out
>> https://github.com/gem/oq-irmt-qgis/tree/qgis3-socketserver which uses
>> websockets.
>
>
> A socket server is exactly what I was thinking of. I did it a couple of
> times in the past (both a simple udp socket and an http server in another
> case)
> By the way I'm not sure it is worth it. Other solutions (through DB,
> files, whatever) might suffice.
>

Well, to be honest, for people in my line of work, who do
advanced environmental modelling outside QGIS, but then use QGIS to do the
GIS work, that would be something quite handy. But it is something that no
one would ever fund :-) So it boils down to what you say.

Cheers,
Andrea


>
> Giovanni
>
>
>> Cheers, Hannes
>>
>>
>> Am 10.09.21 um 14:38 schrieb andrea antonello:
>>
>> Hi Richard,
>>
>> > I guess you mean QGIS Desktop, right? AFAIK the only option is to use
>>> its Python API, which requires all the PyQGIS <
>>> https://docs.qgis.org/3.16/en/docs/pyqgis_developer_cookbook/index.html>
>>> and binary libs to be available inside the environment.
>>>
>>> Just curious: but would it be possible to 'attach' your script to a
>>> running/visible instance of QGIS?
>>>
>>> From:
>>> https://docs.qgis.org/testing/en/docs/pyqgis_developer_cookbook/intro.html#python-applications
>>>
>>> So: I start QGIS, and then from some python console (NOT the internal
>>> one), I can try to load (and show!) a shapefile in current mapcanvas? Or
>>> pan/zoom? That would be cool for demonstrations...
>>>
>>
>> I have to apologize and give a little context. I teach geographic
>> scripting at a local university. Students come from the previous geomatics
>> course with Arc.
>> Since I have no intention to teach Arc scripting, I have been doing it
>> for several years now happily using a scripting environment based on
>> Geoscript Groovy [1].
>> So we are talking about a completely different programming language.
>> In the last year I have been able to pull some of them over to QGIS, but
>> the traction is low. So I was hoping to be able to attach to some APi to
>> load results into a running QGIS instance. That would be really cool,
>> surely convince them and I would have been able to develop the geoscript
>> part necessary to my environment.
>>
>> In the meanwhile I read Gio's comment: "Another option could be run a
>> "micro server" inside a pyqgis plugin and serve an ad-hoc API from it :)"
>>
>> Yes, that would have been my dream :-)
>>
>> Thanks for your comments.
>>
>> Andrea
>>
>>
>> [1] https://jericks.github.io/geoscript-groovy-cookbook
>>
>>
>>>
>>> Regards,
>>>
>>> Richard Duivenvoorde
>>>
>>>
>>>
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