[Qgis-developer] [Qgis-user] Any working GRASS in QGIS available? - Processing Bug?

Tue Aug 11 12:29:23 PDT 2015

Hi Andrew

Am 06.08.2015, 19:20 Uhr, schrieb Andrew <amcaninch at gmail.com>:

> Victor,
>
> I edited the version of the processing plugin that i have installed  
> (QGIS 2.8.3, processing 2.10.1) with the changes you made and >now  
> GRASS7 tools work as they should, thanks!
>
> Andrew

Could you maybe describe a little bit what you have changed and how ?

Bernd

>
>
> On Thu, Aug 6, 2015 at 5:59 AM, Victor Olaya <volayaf at gmail.com> wrote:
>> A quick (but very relevant) note about GRASS7:
>>
>> It seems that, in one of the latest changes, I unintentionally left
>> out a code line where GRASS was actually being called. I was getting a
>> bit crazy wondering where the error might be and why GRASS7 was not
>> working in the latest release....and finally found out that the reason
>> was that. So, in short, Processing was not running grass when running
>> a grass7 algorithm.
>>
>> I have added that line back and it should be fine now.
>>
>> If you can install the current master version, please test and let me
>> know if there are any issues or it is working correctly as before.
>>
>> Regards
>>
>>
>>
>> 2015-08-03 1:37 GMT+02:00 Bernd Vogelgesang <bernd.vogelgesang at gmx.de>:
>>> Hi Alex
>>>
>>> Am 03.08.2015, 01:20 Uhr, schrieb Alex Mandel  
>>> <tech_dev at wildintellect.com>:
>>>
>>>> Ah but we're closer to finding a solution with all those details. It  
>>>> may
>>>> be fixable in Processing, which can be pushed to the plugin repo for
>>>> update any time.
>>>>
>>>> Passing this along to devs who might have enough information now.
>>>>
>>>> Thanks,
>>>> Alex
>>>
>>>
>>>
>>> Thanks for taking care,
>>>
>>> by the way: by copying the gdal algorithms from processing 2.10.1 to  
>>> the
>>> 2.9.3 folder (.qgis2/python/plugins/processing/algs/gdal), I gained  
>>> access
>>> to the new GDAL dissolve polygons :)
>>>
>>> Unfortunately, the model from before (GRASS6) didn't work anymore, and  
>>> all
>>> attempts to adjust it via diff of a test model failed. So reworking my  
>>> model
>>> (for the 10th time or so) in Ubuntu 2.8.3 from ubuntugis-ltr with  
>>> working
>>> GRASS7, SAGA and everything and a partially upgraded Processing 2.9.3
>>>
>>> I'm on my way ... finally .. hopefully ...
>>>
>>> Bernd
>>>
>>>
>>>
>>>> On 08/02/2015 03:07 PM, Bernd Vogelgesang wrote:
>>>>>
>>>>> Am 02.08.2015, 22:44 Uhr, schrieb Alex Mandel
>>>>> <tech_dev at wildintellect.com>:
>>>>>
>>>>>> After some brief testing, my OSGeoLive 8.5 VM with QGIS 2.6 and
>>>>>> Processing 2.9.3, GRASS 7 works.
>>>>>>
>>>>>> My QGIS 2.8, GRASS 6/7, Processing 2.10.1 does not.
>>>>>
>>>>>
>>>>> Gave Windows another try: Removed everything, and installed the  
>>>>> simple
>>>>> install OSGEO4W setup.
>>>>> QGIS 2.10.1 with Processing 2.10.1 and GRASS 6 working.
>>>>>
>>>>> switched back to Ubuntu, cause of a bug in the modeler version of  
>>>>> GDAL
>>>>> Dissolve Polygons (which is crucial for me).
>>>>> https://hub.qgis.org/issues/13174
>>>>>
>>>>> Ubuntu: Now that I installed 2.8 with the debian repository only (so
>>>>> without ubuntis depencies), my GRASS 6 works (sorted out another  
>>>>> error,
>>>>> that GRASS takes a column name "OR" from shape as an sql-command or
>>>>> sth), update to Processing 2.10.1 worked as well.
>>>>>
>>>>> The drawback, no SAGA, which might come handy cause the now available
>>>>> algos do not really do what I expect ;)
>>>>>
>>>>> I think the problem is within Processing in combination with the
>>>>> packaging:
>>>>> When e.g. I install QGIS 2.8 with ubuntugis-ltr dependencies (where
>>>>> nobody on the install page claims I shouldn't do), GRASS7 and the
>>>>> modeler are working, but Processing version is 2.6. Updating  
>>>>> Processing
>>>>> to current Processing 2.10.1 (as recommended) seems to work.
>>>>> (Besides that v.clean in the modeler only returns a polygon layer  
>>>>> from
>>>>> an polygon input, if I also set an output name for the error layer,
>>>>> otherwise I get an empty line shape)
>>>>>
>>>>> But: The next time I run QGIS and want to run an GRASS algo: Missing
>>>>> depencies
>>>>>
>>>>> I can now replace Processing 2.10.1 with the second latest 2.9.3 from
>>>>> https://plugins.qgis.org/plugins/processing/version/2.9.3/
>>>>> and there v.clean does what it should in Processing AND modeler.
>>>>>
>>>>> But: Now I do not have GDAL Dissolve polygons which is in Processing
>>>>> 2.10.1. Well, I could switch back to Windows QGIS 2.10, but, grr,  
>>>>> there
>>>>> is the bug in this algo ...
>>>>>
>>>>> You see, I'm trapped.
>>>>>
>>>>> Thanx for you attention
>>>>> Bernd
>>>>>
>>>>>
>>>>>
>>>>>>
>>>>>> Both are Ubuntu 14.04 based.
>>>>>>
>>>>>> I'm not sure if this is a bug in Processing, or in packaging. I  
>>>>>> recall
>>>>>> in OSGeoLive 8.5 that we had custom packages with a patch. Note,  
>>>>>> you can
>>>>>> get those versions for your Ubuntu system from
>>>>>> https://launchpad.net/~osgeolive/+archive/ubuntu/release-8.5
>>>>>>
>>>>>> We freeze a copy of the working versions in our own ppa for long  
>>>>>> term
>>>>>> history.
>>>>>>
>>>>>> Thanks,
>>>>>> Alex
>>>>>>
>>>>>>
>>>>>> On 2015-08-02 03:32, Bernd Vogelgesang wrote:
>>>>>>>
>>>>>>> Hi Alex,
>>>>>>>
>>>>>>> Am 02.08.2015, 01:22 Uhr, schrieb Alex Mandel
>>>>>>> <tech_dev at wildintellect.com>:
>>>>>>>
>>>>>>>> It's not a Windows/Ubuntu/Mac/OS thing, it's a QGIS + GRASS  
>>>>>>>> version
>>>>>>>> change thing.
>>>>>>>>
>>>>>>>> Please indicate which version of QGIS and GRASS you are trying to  
>>>>>>>> get
>>>>>>>> working.
>>>>>>>
>>>>>>>
>>>>>>> Actually I do not mind any more what version I would like to get
>>>>>>> working. I would have preferred the 2.8-LTR branch with  
>>>>>>> no-matter-what
>>>>>>> GRASS version.
>>>>>>>
>>>>>>> I just would like to be able to finish my project, and there is
>>>>>>> unfortunately no alternative to the GRASS algos in my model.
>>>>>>>
>>>>>>>> QGIS 2.6 and older works with GRASS 6, 2.8+ sometimes is built to  
>>>>>>>> work
>>>>>>>> with GRASS 7 (though possibly also with GRASS 6).
>>>>>>>
>>>>>>>
>>>>>>> Mhm, reverting to 2.6 ... Lets see if this still possible at all  
>>>>>>> ...
>>>>>>>
>>>>>>>> If you want a guaranteed working setup ASAP download a copy of  
>>>>>>>> OSGeo
>>>>>>>> Live Virtual Machine, we made sure that it works in that.
>>>>>>>> http://live.osgeo.org
>>>>>>>
>>>>>>>
>>>>>>> Will give it a try. Download will take another 1.5 hours ...
>>>>>>>
>>>>>>> So does that mean that even your do not have a working GRASS in a
>>>>>>> recent
>>>>>>> QGIS by "normal" means but the osgeo VM?
>>>>>>>
>>>>>>>
>>>>>>>>
>>>>>>>> Thanks,
>>>>>>>> Alex
>>>>>>>
>>>>>>>
>>>>>>> Cheers
>>>>>>> Bernd
>>>>>>>
>>>>>>>>
>>>>>>>> On 2015-08-01 14:41, Bernd Vogelgesang wrote:
>>>>>>>>>
>>>>>>>>> Hi guys,
>>>>>>>>> is it just bad karma, that I seem not to able to get a working
>>>>>>>>> GRASS in
>>>>>>>>> QGIS? Or did I miss the big advertisement "GRASS out of order"
>>>>>>>>> somewhere.
>>>>>>>>>
>>>>>>>>> For nearly 2 weeks, I tried to get things to work in  
>>>>>>>>> Ubuntu/Mint, and
>>>>>>>>> tried every possible/impossible repository, but always GRASS has
>>>>>>>>> missing
>>>>>>>>> dependencies, the forms open in Processing, but the algos don't  
>>>>>>>>> run
>>>>>>>>> through, or the functions are working in Processing, but failing  
>>>>>>>>> in
>>>>>>>>> the
>>>>>>>>> modeller.
>>>>>>>>>
>>>>>>>>> As I really got to finish a model in the Modeller including some
>>>>>>>>> GRASS
>>>>>>>>> algos, I finally turned on my VM with Windows ...
>>>>>>>>> but what the heck? Same s...t there!
>>>>>>>>>
>>>>>>>>> I really wonder why there aren't many post about trouble with  
>>>>>>>>> GRASS
>>>>>>>>> on
>>>>>>>>> this list or at stackexchange, normally this would explode when
>>>>>>>>> things
>>>>>>>>> like these happen.
>>>>>>>>>
>>>>>>>>> So am I really the one with the bad karma, do you all other  
>>>>>>>>> simply
>>>>>>>>> not
>>>>>>>>> use GRASS in processing as much as I do, or do you all simply  
>>>>>>>>> have
>>>>>>>>> working installs, so there is not problem?
>>>>>>>>>
>>>>>>>>> Please, at least one: Do you have an install under Ubuntu or  
>>>>>>>>> Windows,
>>>>>>>>> where GRASS algos are functional in the Modeler ? If yes, which
>>>>>>>>> version/what did you do?
>>>>>>>>>
>>>>>>>>> ... Soon, I will go and find me a rope ...
>>>>>>>>>
>>>>>>>>> Bernd
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>
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>>>
>>>
>>>
>>> --
>>> Bernd Vogelgesang
>>> Siedlerstraße 2
>>> 91083 Baiersdorf/Igelsdorf
>>> Tel: 09133-825374
>>> _______________________________________________
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>

-- 
Bernd Vogelgesang
Siedlerstraße 2
91083 Baiersdorf/Igelsdorf
Tel: 09133-825374
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