[Qgis-user] Sextante - MMQGISX Merge Layers error

[Victor Olaya]

the difference between c++ and python here is clear...

I do not know why the ftool tool is not into SEXTANTE... Maybe i
should just put that one in SEXTANTE and remove the MMQGIS one. I will
see how fast I can make it run after optimizing it, and if it is
better than the fTools one, I will leave it :-)

Cheers

Victor


2012/12/18 Salvatore Larosa <lrssvtml at gmail.com>:
> Hi,
>
> 2012/12/18 Victor Olaya <volayaf at gmail.com>
>>
>> Sure, it should work, but it is performing the attribute name
>> comparison for every feature, which makes it slow (merging large
>> layers took really a lot of time, specially if they have many
>> attributes. I took it out to make it faster, but, as i said, it is not
>> finished. I hope I can spend some time with this tonight and fix it.
>>
>
> Wow, you're right, I had never tried it before and I done a test with the
> merge tools available:
>
> Dataset: SHP, ~150.000 features
>
> SAGA GIS: 28.4 s
> MMQGIS  : 206 s
> fTools       : 120 s
>
> SAGA is very faster !
>
> Cheers!
>
>
>
>> Thanks for your help!
>>
>>
>>
>> 2012/12/18 Salvatore Larosa <lrssvtml at gmail.com>:
>> > Hi Victor,
>> >
>> > 2012/12/18 Victor Olaya <volayaf at gmail.com>
>> >>
>> >> Michal
>> >>
>> >> I see you are running the latest version that I updated a couple of
>> >> days ago. That algorithm had a bug in the previous version, that added
>> >> features twice. Also, it was very slow, and I added some improvements,
>> >> but did not finish it. I plan to fix that and commit it by the end of
>> >> the day. Will tell you when it's ready.
>> >>
>> >
>> > by applying original code [1] it seem works
>> > Michal, please could give a try at it ?
>> >
>> > Regards,
>> >
>> > -SL
>> >
>> > [1] - https://github.com/qgis/Quantum-GIS/pull/362
>> >
>> >
>> >>
>> >> In the mean time, the SAGA merge works perfectly, in case you have
>> >> SAGA installed in your SEXTANTE-QGIS
>> >>
>> >> Regards
>> >>
>> >>
>> >> 2012/12/18 Michał Bełcik <belcikmichal at gmail.com>:
>> >> > Hello everyone
>> >> >
>> >> > While using the tool, such an error appears:
>> >> >
>> >> > Traceback (most recent call last):
>> >> >
>> >> > File
>> >> >
>> >> >
>> >> > "C:\Users\Work\Desktop\Dokumenty\Programs\apps\qgis-dev\python\plugins\sextante\core\GeoAlgorithm.py",
>> >> > line 117, in execute
>> >> >
>> >> > self.processAlgorithm(progress)
>> >> >
>> >> > File
>> >> >
>> >> >
>> >> > "C:\Users\Work\Desktop\Dokumenty\Programs\apps\qgis-dev\python\plugins\sextante\mmqgisx\MMQGISXAlgorithmProvider.py",
>> >> > line 678, in processAlgorithm
>> >> >
>> >> > message = mmqgisx_merge(qgis, [ layer1, layer2 ], savename, False)
>> >> >
>> >> > File
>> >> >
>> >> >
>> >> > "C:\Users\Work\Desktop\Dokumenty\Programs\apps\qgis-dev\python\plugins\sextante\mmqgisx\mmqgisx_library.py",
>> >> > line 2292, in mmqgisx_merge
>> >> >
>> >> > dattributes[dindex] = sattributes[idx[dindex]]
>> >> >
>> >> > KeyError: 6
>> >> >
>> >> >
>> >> > And also an algorithm log:
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > sextante.runalg("mmqgisx:mergelayers","C:/Users/Work/.qgis//sextante/tempdata\\modelerhabitatselectionanalysis6fea24bf8f354dfc946d1052a0078ace.shp","C:/Users/Work/.qgis//sextante/tempdata\\modelerhabitatselectionanalysisb00a2d4281bb43639e75e3f452eb41d6.shp",None)
>> >> >
>> >> >
>> >> > Does anyone knows about the nature of this problem?
>> >> >
>> >> >
>> >> > Best regards
>> >> >
>> >> >
>> >> > Michal Belcik
>> >> >
>> >> >
>> >> > _______________________________________________
>> >> > Qgis-user mailing list
>> >> > Qgis-user at lists.osgeo.org
>> >> > http://lists.osgeo.org/mailman/listinfo/qgis-user
>> >> >
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>> >
>> >
>> >
>> >
>> > --
>> > Salvatore Larosa
>> > linkedIn: http://linkedin.com/in/larosasalvatore
>> > twitter: @lrssvt
>> > skype: s.larosa
>> > IRC: lrssvt on freenode
>> >
>
>
>
>
> --
> Salvatore Larosa
> linkedIn: http://linkedin.com/in/larosasalvatore
> twitter: @lrssvt
> skype: s.larosa
> IRC: lrssvt on freenode
>