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

[Bernd Vogelgesang]

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
>>>>
>>>>
>>>>
>>>
>>
>>
>


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