[Qgis-community-team] Training manual: Processing

[Paolo Cavallini]

Il 17/04/2014 01:26, Victor Olaya ha scritto:
>> *
>> https://github.com/qgis/QGIS-Documentation/blob/master/source/docs/training_manual/processing/vector_calculator.rst
>> this seems outdated in ref to the current exp version of Processing; the
>> Python syntax does not seem to be recognized any more, so
>> float(MALES) / FEMALES does not work. Should I replace it with
>> 1.0*MALES / FEMALES
>> Same for
>> 'male' if MALES > FEMALES else 'female'
> 
> Wow, I hadn't seen the new calcualtor. Awesome. I guess we have to
> update the full chapter.

I can change the text if you wish; for screenshots, better if you do it,
so the appearance remains homogeneous.
Just let me know.

>> *
>> https://github.com/qgis/QGIS-Documentation/blob/master/source/docs/training_manual/processing/extents.rst
>> the command Shapes to grid leaves out the first basin (ID=0): should I
>> change the IDs? The Rasterize command does not create NULLs, and puts 0
>> to NULL
> 
> hmmm, seems to be working here. Are you having problems with the zero value?

yes: the polygon with id 0 is NULLified, in two different ways in SAGA
and GDAL: does it not happen to you?

>> *
>> https://github.com/qgis/QGIS-Documentation/blob/master/source/docs/training_manual/processing/html.rst
>> in the output, the layer and field names are missing: should I open a
>> ticket?
> 
> The algorithm doesn't add that info, so it's not a bug but you can add
> a ticket as a feature request to improve the alg

done, thanks: http://hub.qgis.org/issues/10089

>> * have found some problem with projections not being recognized, so I'll
>> be adding .qpj: objections?
>>
> 
> Sounds great to me

this turned out to be a QGIS bug, probably:
http://hub.qgis.org/issues/9696
See also my other note about wrong projections in Processing, on a
separate email.

All the best.
-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html