[Qgis-developer] Looping over features in processing

[Paolo Cavallini]

Just click on the small green arrow besides layer name.
Cheers.

Il 24 luglio 2015 18:40:33 CEST, Tim Sutton <tim at qgis.org> ha scritto:
>Hi
>
>> On 23 Jul 2015, at 22:44, Tim Sutton <tim at qgis.org> wrote:
>> 
>> Hi Victor
>> 
>>> On 23 Jul 2015, at 22:18, Victor Olaya <volayaf at gmail.com
><mailto:volayaf at gmail.com>> wrote:
>>> 
>>> Tim
>>> 
>>> What you are describing is the behaviour of the iterative execution
>of algorithms (for a layer with n features, it runs the algorihtm n
>times, each of them using as input a layer with only one of those
>features). That can be executed without the need to code anything, from
>the algorithm dialog.
>>> 
>> 
>> Yeah that sounds exactly like what I am after. I will go and take a
>look at that.
>
>
>Sorry to be a bit slow here - I went back to try this and couldn’t see
>where / how to do it - can you give a few more pointers?
>
>Thanks!
>
>Regards
>
>Tim
>
>> 
>> Thanks!
>> 
>> Regards
>> 
>> Tim
>> 
>>> If it's not exactly what you are looking for and you want to code
>something similar, maybe you can at least check the corresponding code
>to get some ideas
>>> 
>>>
>https://github.com/qgis/QGIS/blob/master/python/plugins/processing/gui/AlgorithmExecutor.py#L58
><https://github.com/qgis/QGIS/blob/master/python/plugins/processing/gui/AlgorithmExecutor.py#L58>
>>> 
>>> Let me know if you have more questions
>>> 
>>> Cheers
>>> 
>>> 
>>> 
>>> 2015-07-23 20:15 GMT+02:00 Tim Sutton <tim at qgis.org
><mailto:tim at qgis.org>>:
>>> Hi all
>>> 
>>> Is it possible to write loops in processing. I’d like to do stuff
>like iterate over each poly in a polygon layer, clip features from a
>few layers and write them to a subfolder whose name is based on the
>name of the polygon layer. Think of it like atlas but for data not for
>print compositions. Has anyone done something similar?
>>> 
>>> Regards
>>> 
>>> Tim
>>> 
>>> 
>>> <PastedGraphic-1.tiff>
>>> 
>>> 
>>> Tim Sutton
>>> QGIS Project Steering Committee Member
>>> tim at qgis.org <mailto:tim at qgis.org>
>>> 
>>> 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> Qgis-developer mailing list
>>> Qgis-developer at lists.osgeo.org
><mailto:Qgis-developer at lists.osgeo.org>
>>> http://lists.osgeo.org/mailman/listinfo/qgis-developer
><http://lists.osgeo.org/mailman/listinfo/qgis-developer>
>>> 
>>> _______________________________________________
>>> Qgis-developer mailing list
>>> Qgis-developer at lists.osgeo.org
><mailto:Qgis-developer at lists.osgeo.org>
>>> http://lists.osgeo.org/mailman/listinfo/qgis-developer
>> 
>> <PastedGraphic-1.tiff>
>> 
>> 
>> Tim Sutton
>> QGIS Project Steering Committee Member
>> tim at qgis.org <mailto:tim at qgis.org>
>> 
>> 
>> 
>> 
>> _______________________________________________
>> Qgis-developer mailing list
>> Qgis-developer at lists.osgeo.org
><mailto:Qgis-developer at lists.osgeo.org>
>> http://lists.osgeo.org/mailman/listinfo/qgis-developer
><http://lists.osgeo.org/mailman/listinfo/qgis-developer>
>
>
>
>Tim Sutton
>QGIS Project Steering Committee Member
>tim at qgis.org
>
>
>
>
>
>
>------------------------------------------------------------------------
>
>_______________________________________________
>Qgis-developer mailing list
>Qgis-developer at lists.osgeo.org
>http://lists.osgeo.org/mailman/listinfo/qgis-developer

-- 
Paolo Cavallini
http://www.faunalia.eu
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-developer/attachments/20150724/9bfa85fe/attachment.html>