[Qgis-developer] fTools and GdalTools: sextante vs original plugins

Victor Olaya volayaf at gmail.com
Wed Apr 17 03:27:09 PDT 2013


Bernard's problem was related with using non-file layers in the
modeler. It was a very easy fix, so please, everyone that's using
SEXTANTE, share your problems so we can work on them and make the
software more stable. :-)

Thanks in advance!

2013/4/17 Bernhard Ströbl <bernhard.stroebl at jena.de>:
> Hi all,
>
> just want to inform you that Victor was able to solve my two problems.
> Number 1 (CRS missmatch) was kinda my fault (or let's say the fault of a
> former QGIS version where my project originally was created in: QGIS did
> compare proj4 definition and picked the first CRS the definition of the
> layer matched. As EPSG:31464 and EPSG:31468 have the same proj4 definition
> but the first is deprecated it was chosen, although my layer is defined as
> EPSG:31468 in geometry_columns)
> Number 2 (no PostGIS suppport) was fixed in master
>
>
> Bernhard
>
> Am 17.04.2013 09:24, schrieb Victor Olaya:
>>
>> Bernhard
>>
>>
>> I am sorry to hear about your bad experience. Could you detail a bit
>> more about what you are doing (algorithms you are running, etc)?.
>> PostGIS layers should work without problems, but I have recently fixed
>> a problem with PostGIS when using SAGA algorithms, so there might be
>> other issues like that.
>>
>> If you want, you can send me your layers and model, so I can have a
>> look and try to find out what is happening
>>
>> Many thanks for your collaboration (and patience)
>>
>> Victor
>>
>>
>> 2013/4/17 Bernhard Ströbl<bernhard.stroebl at jena.de>:
>>>
>>> Hi all,
>>>
>>> for a course I am about to give tomorrow I played a bit with SEXTANTE,
>>> although I am going to teach geoprocessing with fTools (we are using QGIS
>>> 1.8). It was my first go with SEXTANTE and I was about to show what it
>>> will
>>> offer in the future. Therefore I built a small model with three input
>>> layers
>>> a buffer and two overlay operations. I did not succeed in running the
>>> model
>>> so I tried in current master.
>>> As it currently is SEXTANTE is not operable for me (or I am doing it
>>> wrong):
>>> First message is "Layers do not all use the same CRS...." although they
>>> definitely do and the same EPSG-code is noted in square brackets behind
>>> each
>>> layer name!? Second I get an "Error executing algorithm..." it seems as
>>> SEXTANTE cannot use PostGIS layers as input (when I save them as shape
>>> files
>>> the model runs perfectly), this is a big limitation as my institution
>>> stores
>>> almost everything in PostGIS. (SEXTANTE should not offer PostGIS layers
>>> to
>>> choose as input layers then).
>>>
>>> Well, this was a very disappointing experience because additionally QGIS
>>> was
>>> frozen two or three times opening or closing the model. I do not want to
>>> complain, all I want is to ask for keeping fTools as they are until
>>> SEXTANTE
>>> can _really_ replace them in all aspects. Then we should remove the
>>> vector
>>> menue completely because I agree that finding the tool you are looking
>>> for
>>> is a lot easier in SEXTANTE.
>>>
>>> my 2 cents
>>>
>>> Bernhard
>>>
>>> Am 17.04.2013 07:42, schrieb Anita Graser:
>>>>
>>>>
>>>> On Wed, Apr 17, 2013 at 3:19 AM, Mathieu Pellerin<nirvn.asia at gmail.com
>>>> <mailto:nirvn.asia at gmail.com>>  wrote:
>>>>
>>>>      There might be a way to make most people happy here.
>>>>
>>>>      I find the vector menu a nice ui shortcut for useful functions. If
>>>>      sextante relevant functions are at par (or better), couldn't the
>>>>      vector menu items stay, which would please many, and when clicked
>>>>      triggers sextante's function dialogue? Victor? Same thing could
>>>>      happen with vector menu too. Sextante's analysis toolbar is super
>>>>      useful but might be a throwback for some if vector / raster menu
>>>>      functions disappear.
>>>>
>>>>      On human resource (coders and testers) and maintenance angles,
>>>>      keeping to mechanism to do same thing is an obvious waste.
>>>>
>>>> I see. So you'd suggest to keep only Sextante code (where duplicates
>>>> exist!) but provide shortcuts from the menu? I'd +1 that.
>>>> I've been testing a variety of functions in the menus and in Sextante
>>>> over the last days and there are always some broken ones. Neither
>>>> "package" is without major bugs today.
>>>> We need to get it together for 2.0 and that's easier if we can focus on
>>>> one.
>>>>
>>>> Best wishes,
>>>> Anita
>>>>
>>>
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>>>
>
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