Re: [Qgis-user] crash loading missing wfs connection

[emmexx]

Il 01/23/2016 08:46 PM, Richard Duivenvoorde scrisse:

Tried to reply your scenario here with latest master:
- one 2.8 geoserver on 8080, layer foo
- one 2.6 geoserver on 8080 without layer foo
- starting qgis with 2.8/foo
- while layer loaded, stop 2.8 and start 2.6
- no problems, only I miss data (off course)


That is not my scenario. :-)

I create a geoserver instance that I call gs281. Its url is 
http://mypublicurl:8080/gs281/wfs

username: foo
password: 1234

I start qgis and add a connection to a layer of that instance.
I close qgis.

I stop geoserver and start the production instance.
Its url is
http://mypublicurl:8080/geoserver/wfs
username: foo2
password: 5678

I start qgis and it crashes.

bye
maxx
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Re: [Qgis-user] Processing complement down !

[Richard Duivenvoorde]

On 23-01-16 22:39, Luigi Pirelli wrote:
> what platform? what qgis version? what processing version?
> 
> as mentioned... test rentistalling the plugin (probably with the
> correct supported processing version for your qgis version)

Yes, and note that Processing is a core plugin. Meaning that it can be
installed in two places:
- in your QGIS install (installed during QGIS install:
 /qgis\python\qgis\python/plugins/processing
- near the other plugins (installed via plugin manager):
 /.qgis2/python/plugins/processing

So you may need to 'deinstall' two times to get rid of the old
processing plugin first.
And THEN install a brand new one.

Also note that I've seen problems with older QGIS versions and the
latest processing (missing libs on windows).

So plz report your versions and/or results.

Regards,

Richard Duivenvoorde

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[Qgis-user] Failed to import OSM data: XML error: Storing node 1, 920, 141, 933 failed.

[Jochen Albrecht]

I am trying to import a full version (700 GBytes) of OSM into SpatiaLIteand
everything is going smoorthly - until it doesn't. Is there a way to run
this import in a more transparent fashion, so that I can see what the error
is? I was surprised that as the import kept chugging along, no disk space
was consumed on any of my drives (temp, destination).
I know that some folks out there have been working with the full (planet)
XML and am now seeking advice as to how they did it (unlikely that it
worked for them at their first trial).
I am working with QGIS 2.12.1 64-bit on a choice of Windows 8 or Ubuntu.
Eventually, I would like to create a TIN of the road network nodes, so I
need to be able to open the data set sequentially in a database rather than
loading it all into memory.
Cheers,
 Jochen
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Re: [Qgis-user] Failed to import OSM data: XML error: Storing node 1, 920, 141, 933 failed.

[Andre Joost]

Am 25.01.2016 um 03:25 schrieb Jochen Albrecht:

I am trying to import a full version (700 GBytes) of OSM into SpatiaLIteand
everything is going smoorthly - until it doesn't. Is there a way to run
this import in a more transparent fashion, so that I can see what the error
is? I was surprised that as the import kept chugging along, no disk space
was consumed on any of my drives (temp, destination).
I know that some folks out there have been working with the full (planet)
XML and am now seeking advice as to how they did it (unlikely that it
worked for them at their first trial).


Your attempt is designed to fail with that amount of data. Consider 
spatiaLITE to be a lightweight database. Professional work on OSM data 
is made on a Postgis populated by osm2pgsql, and the developers are sure 
that this does not work for the full planet on Windows due to OS 
restrictions:


https://github.com/openstreetmap/osm2pgsql/issues/472



I am working with QGIS 2.12.1 64-bit on a choice of Windows 8 or Ubuntu.
Eventually, I would like to create a TIN of the road network nodes, so I
need to be able to open the data set sequentially in a database rather than
loading it all into memory.


If you only need the road network, you better filter that out before 
using osmosis. This will spare a lot of database size and performing 
time. Note that buildings and landuses occupy a lot of the database.


If you still want to work on spatialite, start with a small extract from 
geofabrik, and test further with larger ones until the database collapses.


HTH,
André Joost


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Re: [Qgis-user] linking n to 1 data

[Bernd Vogelgesang]

Hi,

Am 22.01.2016, 11:06 Uhr, schrieb Alexandre Neto :


Hello Joe,

Can you please expand your question a litle bit? Gives an Idea of how  
your data is organized, and exactly what are you trying to >print. Some  
images might help we understand the problem and give you an hand.



For already a long time, I struggle with the same problem!

I think it actually doesn't matter how his data is organized. When you  
have a layer with a common ID to e.g. a database/table with numerous  
entries for this ID you may set up a relation and browse the associated  
data, but I found no easy way in QGIS so far to also display them on the  
map/do other stuff with them.


The only referred way of solving that which I found on the web, is to  
replicate the geometries for each entry in the database/table.


But is no convenient way with QGIS to achieve that so far:
Export WKT of the layer to a new field -> join those attributes to the  
database/table -> export this as csv -> reimport this dataset with "Add  
Delimitzed Text Layer", set to WKT.


This works with points, but when I need to do this with polygons, this  
approach miserably fails, cause the WKT for even small sized polygons is  
way too long for a string field, so the WKT is crippled!


In my specific case which I try to solve for a long time, I receive  
several point and polygons layers and only one attribute table with a  
variety of 0 to numerous entries per ID in those layers.


Even for a small amount of features it is a pain in the ass to produce  
those "materialized 1:n-relations" for being able to make a map.
In my despair, I hacked together an external R script doing all the stuff  
for me, producing all needed layers with one geometry per  
database/table-entry, but I would like to share this with colleagues  
without having to install and maintain R at their computers as well.


In my point of view it would be nice to have a model/python script to do  
at least the failing stuff:
Add vector layer, add Table, set Join 1 and 2 -> receive new vector layer  
with features for each matching entry.


Shouldn't something like this be quite easy with python? (sorry, no real  
idea where to start from with python)


Cheers
Bernd




Alexandre Neto

Jörg Hulka  escreveu no dia quinta, 21/01/2016 às  
13:03:


To whom it may concern



I got trouble linking n to 1 data. I got in my case the problem that  
there is a specific area key (shape-file) which is >>connected to  
different data sets in a dbf file. I only mangaged to print one data  
set to one area. But there are more sets with >>the same area key,  
which I want to print.


I hope there is help to print out all data sets to the specific areas.




I'm using 2.8.4. Is there a specific plugin?





Thanks for your help. I'm using 2.8.4.





Joe

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http://gisunchained.wordpress.com




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Re: [Qgis-user] linking n to 1 data

[Bernd Vogelgesang]

Hi Matthias,
Am 24.01.2016, 17:33 Uhr, schrieb Matthias Kuhn :


Hi Bernd,

On 01/24/2016 05:21 PM, Bernd Vogelgesang wrote:
But again: Would it be soo hard to make a python script (for pythonists  
I mean) that iterates over a table, and >>replicates every matching  
feature to a new vector layer, adding the attributes? That's what I do  
with my R script outside >>of QGIS.So, why not just having a 3 click  
solution instead those numerous exports and reimports and other  
error-prone single >>actions?


Wouldn't this be possible with the new virtual layer provider?


I am pretty sure a lot of stuff is possible. My problem is that I have no  
clue how ;)


Cheers
Bernd





Cheers
Matthias

--Matthias Kuhn
OPENGIS.ch - https://www.opengis.ch
Spatial • (Q)GIS • PostGIS • Open Source




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Re: [Qgis-user] linking n to 1 data

[Matthias Kuhn]

Hi,

There are a number of things to be done to properly support different
usecases:

*Join / Aggregate functions support in expressions*

Some sort of join possibility should be added to expressions (similar to
the get_feature function) and some aggregate functions. E.g.

join( "otherlayer"."name", ',' ) RIGHT JOIN otherlayer ON
otherlayer."id" = this."fk"

to create a string like "A,B,C" from three linked entries with name A, B
and C.

Or

average( "otherlayer"."population" ) RIGHT JOIN otherlayer ON
otherlayer."id" = this."fk"

etc...

*Relation support for print composer*

Create tables with information from related entries based on the current
atlas feature.

Other ideas? I'm sure there is a lot more to be done :-)

Matthias
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Re: [Qgis-user] linking n to 1 data

[Bernd Vogelgesang]

Am 24.01.2016, 16:45 Uhr, schrieb Nicolas Cadieux  
:




This is good also.

http://www.qgistutorials.com/en/docs/performing_table_joins.html


Well, I already know how to join data to a layer, thats not the problem  
and this does not solve 1 to many problems.


Google QGIS one-to-many or many-to-one join and you should find more.
Did this extensively over the past 3 years. That's why I only came up with  
my R approach.


Mmqgis plugin may also have options for you.
Can't see anything that makes live there soo much easier except "Geometry  
Export to CSV" which might produce valid polygon features after reimport.


But again: Would it be soo hard to make a python script (for pythonists I  
mean) that iterates over a table, and replicates every matching feature to  
a new vector layer, adding the attributes? That's what I do with my R  
script outside of QGIS.
So, why not just having a 3 click solution instead those numerous exports  
and reimports and other error-prone single actions?


Greetings
Bernd



Cheers!

Nicolas Cadieux M.Sc.
Les Entreprises Archéotec inc.8548, rue Saint-Denis Montréal H2P 2H2
Téléphone: 514.381.5112  Fax: 514.381.4995
www.archeotec.ca
On Jan 24, 2016 10:20, "Matthias Kuhn-2 [via OSGeo.org] " <[hidden  
email]> wrote:

Hi,

There are a number of things to be done to properly support different  
usecases:


Join / Aggregate functions support in expressions

Some sort of join possibility should be added to expressions (similar  
to the get_feature function) and some >>aggregate functions. E.g.


   join( "otherlayer"."name", ',' ) RIGHT JOIN otherlayer ON  
otherlayer."id" = this."fk"


to create a string like "A,B,C" from three linked entries with name A,  
B and C.


Or

   average( "otherlayer"."population" ) RIGHT JOIN otherlayer ON  
otherlayer."id" = this."fk"


etc...

Relation support for print composer

Create tables with information from related entries based on the  
current atlas feature.


Other ideas? I'm sure there is a lot more to be done :-)

Matthias

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Re: [Qgis-user] linking n to 1 data

[Nicolas Cadieux]

This is good also. 
http://www.qgistutorials.com/en/docs/performing_table_joins.html 
Google QGIS one-to-many or many-to-one join and you should find more. 
Mmqgis plugin may also have options for you. 
Cheers! 
Nicolas Cadieux M.Sc. 
Les Entreprises Archotec inc. 
8548, rue Saint-Denis Montral H2P 2H2 
Tlphone:514.381.5112 Fax: 514.381.4995 
www.archeotec.ca 
On Jan 24, 2016 10:20, Matthias Kuhn-2 [via OSGeo.org] 
ml-node+s1560n5246972...@n6.nabble.com wrote: 


  

  
  
Hi, 

There are a number of things to be done to properly support
different usecases: 

Join / Aggregate functions support in expressions 

Some sort of join possibility should be added to expressions
(similar to the get_feature function) and some aggregate functions.
E.g. 

    join( otherlayer.name, , ) RIGHT JOIN 
otherlayer ON
otherlayer.id  this.fk 

to create a string like A,B,C from three linked entries with name
A, B and C. 

Or 

    average( otherlayer.population ) RIGHT JOIN 
otherlayer ON
otherlayer.id  this.fk 

etc... 

Relation support for print composer 

Create tables with information from related entries based on the
current atlas feature. 

Other ideas? Im sure there is a lot more to be done :-) 

Matthias 
  

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Re: [Qgis-user] linking n to 1 data

[Matthias Kuhn]

Hi Bernd,

On 01/24/2016 05:21 PM, Bernd Vogelgesang wrote:
> But again: Would it be soo hard to make a python script (for
> pythonists I mean) that iterates over a table, and replicates every
> matching feature to a new vector layer, adding the attributes? That's
> what I do with my R script outside of QGIS.
> So, why not just having a 3 click solution instead those numerous
> exports and reimports and other error-prone single actions?

Wouldn't this be possible with the new virtual layer provider?

Cheers
Matthias

-- 
Matthias Kuhn
OPENGIS.ch - https://www.opengis.ch
Spatial • (Q)GIS • PostGIS • Open Source

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Re: [Qgis-user] linking n to 1 data

[Nyall Dawson]

On 25 Jan 2016 02:31, "Matthias Kuhn"  wrote:
>
> Hi,
>
> There are a number of things to be done to properly support different
usecases:
>
> Join / Aggregate functions support in expressions
>
> Some sort of join possibility should be added to expressions (similar to
the get_feature function) and some aggregate functions. E.g.
>
> join( "otherlayer"."name", ',' ) RIGHT JOIN otherlayer ON
otherlayer."id" = this."fk"
>
> to create a string like "A,B,C" from three linked entries with name A, B
and C.
>
> Or
>
> average( "otherlayer"."population" ) RIGHT JOIN otherlayer ON
otherlayer."id" = this."fk"
>
> etc...
>
> Relation support for print composer
>
> Create tables with information from related entries based on the current
atlas feature.

That's already possible, since 2.2? 2.4? Not sure... A long time ago. ;)

Nyall

>
> Other ideas? I'm sure there is a lot more to be done :-)
>
> Matthias
>
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Re: [Qgis-user] OSGeo4W-packages for GRASS 7 only in QGIS

[Jürgen E . Fischer]

Hi Martin,

On Fri, 22. Jan 2016 at 20:54:35 +0100, Martin Landa wrote:
> 2016-01-22 9:23 GMT+01:00 Jürgen E. :
> > against 7.0.3RC1.   Not sure why the stable grass package is replaces with
> > RCs and whether it's necessary to embed the exact version number in the
> > file names, but that way it's easy to break GRASS support in QGIS.

> because nobody complained till now ;-) We could change this policy in the
> sense that RCs will go only to osgeo4w-testing in the future. What do you
> think?

You mean "test: 7.0.3RC1-1" in setup.hint?  Yes, that would work.
 

Jürgen

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