Re: [Qgis-user] How to create one new string-value from many other string-values?

[stadt-koeln-rutha]

hi there ! 

Thanks  a lot for your answeres. 

The "aggregate" - function is working just fine! I think I may have solved
the
sorting challange with the following:

/array_sort(array("Txt"), "let_order")/

My letters are the content of the column "Txt" and the "let_order" column
indicates the order of my letters by numbers. 

Thanks again to all of you! Wish you the best!

J. Rutha



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Re: [Qgis-user] QGIS Update 3.14.16

[Andrea Giudiceandrea]

Hi Martin,
in alternative to the working solution proposed by Bas, you could remove
";C:\Program Files\RStudio\bin" from the PATH string in the file
qgis-bin-g7.env (for QGIS 3.14) which is in your %OSGEO4W_ROOT%\bin folder.

Regards.

Andrea Giudiceandrea


baswein wrote
> I don't use RStufdio often so what fixed it for me was to change the
> Rstudio
> folder to RStudioX. 





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[Qgis-user] Union slow

[ming han]

Hi All

Is there any way to speed up the union function?

The processing time by QGIS is too slow compared with ArcGIS.

Thanks
Ming
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Re: [Qgis-user] QGIS Update 3.14.16

[Martin Bittens]

Sebastian,

how did you know that I used the OSGEO installer and installed RStudio
on my computer?:-)

In fact, that was it! I would never come up with the idea looking for
"rbatch breakes QGIS/Qt" to solve the problem I mentioned.

Thanks a lot.


Martin



Am 9/24/2020 um 5:19 PM schrieb Sebastian Gutwein:

Sorry that link got mangled. The osgeo ticket is here:
https://trac.osgeo.org/osgeo4w/ticket/641


On Thu, Sep 24, 2020 at 4:18 PM Sebastian Gutwein
mailto:sebast...@regenerativedesigngroup.com>> wrote:

Martin,
I had the same problem. I assume that you are using the OSGEO
installer and also have RStudio installed. See
https://trac.osgeo.org/osgeo4w/ticket/641and
https://github.com/qgis/QGIS/issues/38845
I don't use RStufdio often so what fixed it for me was to change
the Rstudio folder to RStudioX.
-Bas

On Thu, Sep 24, 2020 at 3:53 PM Martin Bittens
mailto:martin.bitt...@gmx.de>> wrote:

Hello QGIS-Users,

today I did the update from QGIS 3.14.2 to 3.14.16 with the
result that
I cannot start anymore the version "QGIS with GRASS 7.8.3". I
received
the following message:

"This application failed to start because no Qt platform
plugin could be
initialized. Reinstalling the application may fix this problem.
Available platform plugins are: direct2d, minimal, offscreen,
window."

Some additional information:

- I am working with Windows 10;

- I got the same result with "QGIS 3.10. with Grass 7.8.3";

- QGIS 3.10 and 3.14.16 (those versions without the GRASS plugin)
working without any problems;

- I checked the internet for solutions but what I found was a bit
confusing to me (creating a python script, changing batch
files to start
up QGIS, etc.).


Maybe somebody has an idea how to get into "QGIS with GRASS
7.8.3" like
I could do before: just click on the bottom and... here we are!

Thank you so much

Regards


Martin



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(631) 241-1018
/
A possible world is better/



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(631) 241-1018
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A possible world is better/



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Re: [Qgis-user] QGIS Update 3.14.16

[baswein]

Martin, 
I had the same problem. I assume that you are using the OSGEO installer and
also have RStudio installed. See
https://trac.osgeo.org/osgeo4w/ticket/641and
https://github.com/qgis/QGIS/issues/38845
I don't use RStufdio often so what fixed it for me was to change the Rstudio
folder to RStudioX. 
-Bas



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[Qgis-user] QGIS Update 3.14.16

[Martin Bittens]

Hello QGIS-Users,

today I did the update from QGIS 3.14.2 to 3.14.16 with the result that
I cannot start anymore the version "QGIS with GRASS 7.8.3". I received
the following message:

"This application failed to start because no Qt platform plugin could be
initialized. Reinstalling the application may fix this problem.
Available platform plugins are: direct2d, minimal, offscreen, window."

Some additional information:

- I am working with Windows 10;

- I got the same result with "QGIS 3.10. with Grass 7.8.3";

- QGIS 3.10 and 3.14.16 (those versions without the GRASS plugin)
working without any problems;

- I checked the internet for solutions but what I found was a bit
confusing to me (creating a python script, changing batch files to start
up QGIS, etc.).


Maybe somebody has an idea how to get into "QGIS with GRASS 7.8.3" like
I could do before: just click on the bottom and... here we are!

Thank you so much

Regards


Martin



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Re: [Qgis-user] Reliable geocoding alternative?

[Charles Dixon-Paver]

Just a note that if anyone is looking for spatial address information for
geocoding purposes, https://openaddresses.io/ is an interesting looking
project (it only has very specific coverage regions though)...

On Wed, 23 Sep 2020 at 16:20, Nicolas Cadieux 
wrote:

> Hi,
> Do you have coordinates (x,y) in that csv?  You can generate the
> geometries from that.  If not, you will need to find a database for that.
> What were you planing on using for the geospatial info?
>
> Nicolas Cadieux
>
> Le 23 sept. 2020 à 10:17, Erich Purpur  a écrit :
>
> 
> Thank you again for your response. I understand what you suggest but it
> won't work in this case unfortunately.
>
> I only have a .csv file, which has an address and all the other
> information too. There is no other layer.
>
> -Erich
>
> On Wed, Sep 23, 2020 at 10:12 AM Nicolas Cadieux <
> njacadieux.git...@gmail.com> wrote:
>
>> 
>> Hi,
>>
>> To do this, you need two files. If they are csv, you can use that.  If
>> you are limited in what you can do, just save a geopackage.  You will need
>> one file with the addresses (that you have) and one file, or a data base
>> with the georeferenced information.  Do you have that? If not what where
>> you planing to use to find the geographic positions of the objects?
>>
>> A csv is a vector layer if it’s georeferenced or a database if it’s not.
>> You may be limited in what you can do but export it to a for at that QGIS
>> can write to like geopackage or SpatiaLite which is the same thing but with
>> not spatial info.
>>
>> Nicolas Cadieux
>>
>> Le 23 sept. 2020 à 08:52, Erich Purpur  a écrit :
>>
>> 
>> Hi Nicolas-
>>
>> The issue is that I have data in a .csv file. Each row has an address.
>> Both the 'join attributes by location' and 'join attributes by field value'
>> tool specify that it joins vector layers. But I don't have a vector layer.
>>
>> -Erich
>>
>> On Tue, Sep 22, 2020 at 7:41 PM Nicolas Cadieux <
>> njacadieux.git...@gmail.com> wrote:
>>
>>> Hi,
>>>
>>> Why not just use "Join Attributes by Location" or "Join Attributes by
>>> Field Value" in Processing?  If you have inconsistent results, I would look
>>> at your data base.  Are you using unique fields?  Do you have duplicate
>>> shapes or shape collections (MultiPoints, Mulit...)?  What method are you
>>> using? intersects, within...  ?
>>>
>>> Nicolas
>>> On 2020-09-22 7:19 p.m., Erich Purpur wrote:
>>>
>>> Hi all-
>>>
>>> Geocoding is the one process I am still doing in ArcPro. Most of the
>>> QGIS geocoding tutorials I have found recommend using the Geocoding tool in
>>> MMQGIS but I have really struggled to get consistent results.
>>>
>>> Does anyone have an alternative Geocoding plugin or other tool they
>>> use?  It doesn't have to be within QGIS, an external tool would be fine.
>>>
>>> Thank you,
>>>
>>> Erich Purpur
>>>
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Re: [QGIS-it-user] Surrogato di rasmover

[Marco Spaziani]

Non c'è paragone. Rasmover è preistoria (anche se lo ricorderò sempre con
affetto).  Freehand raster georeferencer invece è un gioiellino perchè allo
stesso tempo di consente di fare spostamenti al volo "a mano libera" ma, se
serve, ti fa anche delle più precise georeferenziazioni con due punti ...e
poi ruota, riscala, ecc...insomma ...è un gradino evolutivo più alto.
Strano che ieri sera, nel cercare sul gestore dei plugin, malgrado abbia
usato molte chiavi di ricerca (tra cui sicuramente raster e hand) non
l'abbia trovato nella lista degli installabili.
Grazie ancora

Il giorno gio 24 set 2020 alle ore 09:58 Marco Spaziani <
spaziani.ma...@gmail.com> ha scritto:

> Grazie. Lo provo subito
>
> Il giorno gio 24 set 2020 alle ore 09:31 Sergio Gollino <
> gollinoser...@gmail.com> ha scritto:
>
>> Hai provato " Freehand raster georeferencer"? Permette un movimento
>> abbastanza rapido e grezzo dei raster anche se non avendo mai provato il
>> plugin di cui parli non so dirti quanto sia simile.
>>
>> Ciao
>>
>>
>>
>>
>> Il giorno mer 23 set 2020 alle ore 23:28 Marco Spaziani <
>> spaziani.ma...@gmail.com> ha scritto:
>>
>>> Considerato che il plugin Rasmover non è più disponibile nelle versioni
>>> 3.x, e considerato che non ci sono plugin "surrogati" di Rasmover, voi che
>>> procedura usate per spostare "al volo" e "a mano" un raster? e che non
>>> sia ovviamente lo strumento Georeferenziatore di QGIS ...lo strumento
>>> Georeferenziatore è potentissimo per fare "spostamenti" con precisione
>>> centimetrica ...io invece mi riferisco ad uno strumento grezzo, con ampio
>>> margine d'errore, ma che ti consenta di avere uno spostamento "al volo"
>>> (pur se non preciso ...insomma quello che faceva Rasmover). Ho letto che in
>>> R dovrebbe esserci qualcosa, ma non ho padronanza di questo software che
>>> "gira" su Processi di QGIS. Sempre in Processi di QGIS ho visto su SAGA su
>>> GRASS e su GDAL, ma non mi sembra che ci sia niente di utile.
>>> ___
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>>
>>
>> --
>> Sergio Gollino
>> Profilo su Linkedin 
>>
>> Questo messaggio, comprensivo di eventuali allegati, è ad uso esclusivo
>> del destinatario e potrebbe contenere  informazioni riservate; se è stato
>> recapitato per errore ci scusiamo per l'accaduto e Vi invitiamo
>> cortesemente a darcene notizia provvedendo alla sua distruzione.
>> Vi ricordiamo che la diffusione, l'utilizzo e/o la conservazione dei dati
>> ricevuti per errore costituiscono violazione alle disposizioni del D.Lgs.
>> n. 196/2003 "Codice in materia di protezione dei dati personali".
>>
>
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Re: [QGIS-it-user] Surrogato di rasmover

[Marco Spaziani]

Grazie. Lo provo subito

Il giorno gio 24 set 2020 alle ore 09:31 Sergio Gollino <
gollinoser...@gmail.com> ha scritto:

> Hai provato " Freehand raster georeferencer"? Permette un movimento
> abbastanza rapido e grezzo dei raster anche se non avendo mai provato il
> plugin di cui parli non so dirti quanto sia simile.
>
> Ciao
>
>
>
>
> Il giorno mer 23 set 2020 alle ore 23:28 Marco Spaziani <
> spaziani.ma...@gmail.com> ha scritto:
>
>> Considerato che il plugin Rasmover non è più disponibile nelle versioni
>> 3.x, e considerato che non ci sono plugin "surrogati" di Rasmover, voi che
>> procedura usate per spostare "al volo" e "a mano" un raster? e che non
>> sia ovviamente lo strumento Georeferenziatore di QGIS ...lo strumento
>> Georeferenziatore è potentissimo per fare "spostamenti" con precisione
>> centimetrica ...io invece mi riferisco ad uno strumento grezzo, con ampio
>> margine d'errore, ma che ti consenta di avere uno spostamento "al volo"
>> (pur se non preciso ...insomma quello che faceva Rasmover). Ho letto che in
>> R dovrebbe esserci qualcosa, ma non ho padronanza di questo software che
>> "gira" su Processi di QGIS. Sempre in Processi di QGIS ho visto su SAGA su
>> GRASS e su GDAL, ma non mi sembra che ci sia niente di utile.
>> ___
>> QGIS-it-user mailing list
>> QGIS-it-user@lists.osgeo.org
>> https://lists.osgeo.org/mailman/listinfo/qgis-it-user
>>
>
>
> --
> Sergio Gollino
> Profilo su Linkedin 
>
> Questo messaggio, comprensivo di eventuali allegati, è ad uso esclusivo
> del destinatario e potrebbe contenere  informazioni riservate; se è stato
> recapitato per errore ci scusiamo per l'accaduto e Vi invitiamo
> cortesemente a darcene notizia provvedendo alla sua distruzione.
> Vi ricordiamo che la diffusione, l'utilizzo e/o la conservazione dei dati
> ricevuti per errore costituiscono violazione alle disposizioni del D.Lgs.
> n. 196/2003 "Codice in materia di protezione dei dati personali".
>
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Re: [Qgis-user] How do people unit test plugin code?

[Alessandro Pasotti]

On Thu, Sep 24, 2020 at 9:36 AM Ian Turton  wrote:
>
> I was toying with refactoring my plugin code the other day, but I thought I 
> would add some unit tests using pytest before I started to make sure I didn't 
> break anything. But when I try something like:
>
> def test_convertGridRef():
>  QgsExpression.registerFunction(convertGridRef)
>  e = QgsExpression('convertGridRef("SE2720")')
>  assert e.evaluate(None) == 'POINT (427000 42)'
>
> e.evaluate returns None - when it should either return a point or an exception
>
> Does anyone have some good plugin unit test examples I can take a look at?
>


Hi Jan,

There are many possible approaches to plugin testing, one of the most
interesting IMO is to use the testing docker which allows you to run
the tests inside a real QGIS instance and not a mocked one.

You can find examples of this setup in
https://github.com/inasafe/inasafe/blob/develop/.travis.yml and there
is some documentation in
https://github.com/qgis/QGIS/tree/master/.docker#running-unit-tests-inside-qgis

Hope this helps.


-- 
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ItOpen:   www.itopen.it
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[Qgis-user] How do people unit test plugin code?

[Ian Turton]

I was toying with refactoring my plugin code the other day, but I thought I
would add some unit tests using pytest before I started to make sure I
didn't break anything. But when I try something like:

def test_convertGridRef():
 QgsExpression.registerFunction(convertGridRef)
 e = QgsExpression('convertGridRef("SE2720")')
 assert e.evaluate(None) == 'POINT (427000 42)'

e.evaluate returns None - when it should either return a point or an
exception

Does anyone have some good plugin unit test examples I can take a look at?

Thanks

Ian
-- 
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Re: [QGIS-it-user] Surrogato di rasmover

[Sergio Gollino]

Hai provato " Freehand raster georeferencer"? Permette un movimento
abbastanza rapido e grezzo dei raster anche se non avendo mai provato il
plugin di cui parli non so dirti quanto sia simile.

Ciao




Il giorno mer 23 set 2020 alle ore 23:28 Marco Spaziani <
spaziani.ma...@gmail.com> ha scritto:

> Considerato che il plugin Rasmover non è più disponibile nelle versioni
> 3.x, e considerato che non ci sono plugin "surrogati" di Rasmover, voi che
> procedura usate per spostare "al volo" e "a mano" un raster? e che non
> sia ovviamente lo strumento Georeferenziatore di QGIS ...lo strumento
> Georeferenziatore è potentissimo per fare "spostamenti" con precisione
> centimetrica ...io invece mi riferisco ad uno strumento grezzo, con ampio
> margine d'errore, ma che ti consenta di avere uno spostamento "al volo"
> (pur se non preciso ...insomma quello che faceva Rasmover). Ho letto che in
> R dovrebbe esserci qualcosa, ma non ho padronanza di questo software che
> "gira" su Processi di QGIS. Sempre in Processi di QGIS ho visto su SAGA su
> GRASS e su GDAL, ma non mi sembra che ci sia niente di utile.
> ___
> QGIS-it-user mailing list
> QGIS-it-user@lists.osgeo.org
> https://lists.osgeo.org/mailman/listinfo/qgis-it-user
>


-- 
Sergio Gollino
Profilo su Linkedin 

Questo messaggio, comprensivo di eventuali allegati, è ad uso esclusivo del
destinatario e potrebbe contenere  informazioni riservate; se è stato
recapitato per errore ci scusiamo per l'accaduto e Vi invitiamo
cortesemente a darcene notizia provvedendo alla sua distruzione.
Vi ricordiamo che la diffusione, l'utilizzo e/o la conservazione dei dati
ricevuti per errore costituiscono violazione alle disposizioni del D.Lgs.
n. 196/2003 "Codice in materia di protezione dei dati personali".
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