Re: [Qgis-user] qgis project to online

[Julien Cabieces via Qgis-user]

Hi,

You need to install[0] and configure[1] a QGIS server on your server so you
can stream the project and its data to your web client using for
instance WMS.

Your data need to be either on a database (PostGreSQL/PostGIS for
instance) or inside files side-by-side with your project file (but it's
less efficient, better to have them in a database).

Your web client can then use the WMS to display the map using a library
like OpenLayers, LeafLet or an tire web application like QWC2[2], Lizmap[3]
(there is many more)

Regards,
Julien


[0] 
https://docs.qgis.org/3.22/en/docs/server_manual/getting_started.html#installation-on-windows
[1] 
https://docs.qgis.org/3.22/en/docs/server_manual/getting_started.html#serve-a-project
[2] https://qwc-services.github.io/
[3] https://www.lizmap.com/en/

> Hello everyone!
>
> Can somebody, please, provide me with hints and directions on where 
> should i start with understanding on how to make that the projects we 
> work on to be available online, on a web interface?
> What i understand is that we need a server where the project should be 
> uploaded (which we have) in order to be visualized.
> What i am missing is how exactly i do that?
> I started looking postgis, postgresql, geoserver. But at this point i am 
> lost as i am not sure what do i do next.
> I know that we need to configure somehow our server, but how exactly i 
> am not sure.
>
> I need to mention one more desirable thing: what we need is that as we 
> edit a project, these edits need to appear in the online map too.
>
> I'm operating on windows 11.
>
> Thank you in advance!

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[Qgis-user] qgis project to online

[Alexandru Munteanu via Qgis-user]

Hello everyone!

Can somebody, please, provide me with hints and directions on where 
should i start with understanding on how to make that the projects we 
work on to be available online, on a web interface?
What i understand is that we need a server where the project should be 
uploaded (which we have) in order to be visualized.

What i am missing is how exactly i do that?
I started looking postgis, postgresql, geoserver. But at this point i am 
lost as i am not sure what do i do next.
I know that we need to configure somehow our server, but how exactly i 
am not sure.


I need to mention one more desirable thing: what we need is that as we 
edit a project, these edits need to appear in the online map too.


I'm operating on windows 11.

Thank you in advance!

--
Alexandru Munteanu
Centre of Urbanism, co-founder, president
MSc. in International Cooperation in Urban Development
MSc. in Urbanism, Habitat and International Cooperation
aldru.munte...@gmail.com
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Re: [Qgis-user] QGIS project templates and PostGIS connections

[Frank Broniewski]

I just wanted to thank you all for your valuable feedback that I 
received. It's good to have so many, flexible options in QGIS, although 
the KERBEROS stuff is way over my head :-), but it's good to know that 
it is possible.


Many thanks again,

Frank



Am 22.11.21 um 20:35 schrieb Frank Broniewski:

Hi fellow QGIS user!

I am scratching my head on the following problem. I want to create a 
QGIS project template which has PostGIS layers in it. I want to be 
able to pass this template to other users who might use them for 
different tasks.


The problem now is the connection string to the PostGIS database. When 
using the authentication manager each PostGIS connection gets its own 
ID which in turn is then referenced in the connection string to the 
layer. But now this ID to the PostGIS connection is different for each 
user, so the stored connection string in the template is not valid 
anymore. And each user has his own credentials for logging into 
PostGIS as well.


I see that I can give a custom ID to a connection in the 
authentication manager, but it is locked by default, so I am hesitant 
to unlock it. But is this a viable option? Create the PostGIS 
connection under the same ID for each user?


There's also the PostgreSQL connection service file [1] which might be 
an option? Does anyone have some experience to share, especially when 
talking Windows PC?


How do you manage PostGIS connections for "simple" users on a somewhat 
larger scale? I am talking about 20 users, just enough to be annoying 
enough for manual deployment ...


Many thanks for any tips,

Frank


[1] https://www.postgresql.org/docs/12/libpq-pgservice.html

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Re: [Qgis-user] QGIS project templates and PostGIS connections

[DelazJ]

Hi,

Le mar. 23 nov. 2021 à 09:13, Pekka Sarkola  a écrit :

> Hi Frank and lists members,
>
> We use to identify different PostgreSQL clusters/databases with
> PGServicefile: this gives flexibility to change PostgreSQL cluster and/or
> databases without annoying users. Authentication of the users is done via a
> personal authentication database.
>
> Old, but still valid QGIS and PostgreSQL service connection file
> documentation is here:
> https://docs.qgis.org/2.14/en/docs/user_manual/working_with_vector/supported_data.html#service-connection-file
>
> Up to date link available at
https://docs.qgis.org/3.16/en/docs/user_manual/managing_data_source/opening_data.html#postgresql-service-connection-file

Regards,
Harrissou

Rgs,
>
> Pekka
>
> Pekka Sarkola
> Gispo Oy
> pekka.sark...@gispo.fi   - GSM +358 40 725 2042
> www.gispo.fi – www.paikkatieto.com
>
>
> ma 22. marrask. 2021 klo 21.42 Frank Broniewski (ha...@frankbroniewski.com)
> kirjoitti:
>
>> Hi fellow QGIS user!
>>
>> I am scratching my head on the following problem. I want to create a
>> QGIS project template which has PostGIS layers in it. I want to be able
>> to pass this template to other users who might use them for different
>> tasks.
>>
>> The problem now is the connection string to the PostGIS database. When
>> using the authentication manager each PostGIS connection gets its own ID
>> which in turn is then referenced in the connection string to the layer.
>> But now this ID to the PostGIS connection is different for each user, so
>> the stored connection string in the template is not valid anymore. And
>> each user has his own credentials for logging into PostGIS as well.
>>
>> I see that I can give a custom ID to a connection in the authentication
>> manager, but it is locked by default, so I am hesitant to unlock it. But
>> is this a viable option? Create the PostGIS connection under the same ID
>> for each user?
>>
>> There's also the PostgreSQL connection service file [1] which might be
>> an option? Does anyone have some experience to share, especially when
>> talking Windows PC?
>>
>> How do you manage PostGIS connections for "simple" users on a somewhat
>> larger scale? I am talking about 20 users, just enough to be annoying
>> enough for manual deployment ...
>>
>> Many thanks for any tips,
>>
>> Frank
>>
>>
>> [1] https://www.postgresql.org/docs/12/libpq-pgservice.html
>>
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Re: [Qgis-user] QGIS project templates and PostGIS connections

[Pekka Sarkola]

Hi Frank and lists members,

We use to identify different PostgreSQL clusters/databases with
PGServicefile: this gives flexibility to change PostgreSQL cluster and/or
databases without annoying users. Authentication of the users is done via a
personal authentication database.

Old, but still valid QGIS and PostgreSQL service connection file
documentation is here:
https://docs.qgis.org/2.14/en/docs/user_manual/working_with_vector/supported_data.html#service-connection-file

Rgs,

Pekka

Pekka Sarkola
Gispo Oy
pekka.sark...@gispo.fi   - GSM +358 40 725 2042
www.gispo.fi – www.paikkatieto.com


ma 22. marrask. 2021 klo 21.42 Frank Broniewski (ha...@frankbroniewski.com)
kirjoitti:

> Hi fellow QGIS user!
>
> I am scratching my head on the following problem. I want to create a
> QGIS project template which has PostGIS layers in it. I want to be able
> to pass this template to other users who might use them for different
> tasks.
>
> The problem now is the connection string to the PostGIS database. When
> using the authentication manager each PostGIS connection gets its own ID
> which in turn is then referenced in the connection string to the layer.
> But now this ID to the PostGIS connection is different for each user, so
> the stored connection string in the template is not valid anymore. And
> each user has his own credentials for logging into PostGIS as well.
>
> I see that I can give a custom ID to a connection in the authentication
> manager, but it is locked by default, so I am hesitant to unlock it. But
> is this a viable option? Create the PostGIS connection under the same ID
> for each user?
>
> There's also the PostgreSQL connection service file [1] which might be
> an option? Does anyone have some experience to share, especially when
> talking Windows PC?
>
> How do you manage PostGIS connections for "simple" users on a somewhat
> larger scale? I am talking about 20 users, just enough to be annoying
> enough for manual deployment ...
>
> Many thanks for any tips,
>
> Frank
>
>
> [1] https://www.postgresql.org/docs/12/libpq-pgservice.html
>
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Re: [Qgis-user] QGIS project templates and PostGIS connections

[Dirk.Pispers]

Hi Frank,

in our city administration we have many QGIS projects, that are used by a 
number of different users and includes PostgreSQL-Connections.
The way we handle this is that every user creates an authentication 
configuration with the same id. If you have only one PostgreSQL instance or if 
username/password in all instances is the same, you have only one 
authentication configuration that is used in every database connection.
That is not a very convenient solution, but the best one i figured out.
In the next step we will setup all PostgreSQL instances for authentication 
against our active directory.
The last step hopefuly will be to switching this to Kerberos authentication, 
which means an single sign on without any username/password handling in QGIS.
See 
https://www.fossgis-konferenz.de/2020/attachments/UPPG8U_fossgis_ad_postgresql_schulz_2_EDa0QTa.pdf
 for more informations about Kerberos. 

Regards
Dirk
-
Hi fellow QGIS user!

I am scratching my head on the following problem. I want to create a QGIS 
project template which has PostGIS layers in it. I want to be able to pass this 
template to other users who might use them for different tasks.

The problem now is the connection string to the PostGIS database. When using 
the authentication manager each PostGIS connection gets its own ID which in 
turn is then referenced in the connection string to the layer. 
But now this ID to the PostGIS connection is different for each user, so the 
stored connection string in the template is not valid anymore. And each user 
has his own credentials for logging into PostGIS as well.

I see that I can give a custom ID to a connection in the authentication 
manager, but it is locked by default, so I am hesitant to unlock it. But is 
this a viable option? Create the PostGIS connection under the same ID for each 
user?

There's also the PostgreSQL connection service file [1] which might be an 
option? Does anyone have some experience to share, especially when talking 
Windows PC?

How do you manage PostGIS connections for "simple" users on a somewhat larger 
scale? I am talking about 20 users, just enough to be annoying enough for 
manual deployment ...

Many thanks for any tips,

Frank


[1] https://www.postgresql.org/docs/12/libpq-pgservice.html


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Re: [Qgis-user] QGIS project templates and PostGIS connections

[Jorge Gustavo Rocha]

Hi Frank,

There are several options. That's the problem.

I use pg_services. Every user has his own pg_service file, with their 
credentials.


Project templates (and common styles) are stored in one specific 
database, that everybody can read.


All Postgis layers are referenced by the service name. Users save their 
own projects on the database to. Some resources (like SVG icons and 
images used on print compositions) are stored on a WEBDAV shared folder. 
Rasters are also published using PostGIS, so rasters are also available 
as another PostGIS layer.


This setup is interesting, because QGIS Server is also able to read all 
projects prepared by users, for web visualization. The webdav folder is 
also readable by the server, so I have no problems on server side 
rendering. If properly configured, you can use the server landing page 
support to do a quick preview of the projects stored on each database.


Regards,

Jorge Gustavo

On 22/11/21 19:35, Frank Broniewski wrote:

Hi fellow QGIS user!

I am scratching my head on the following problem. I want to create a 
QGIS project template which has PostGIS layers in it. I want to be 
able to pass this template to other users who might use them for 
different tasks.


The problem now is the connection string to the PostGIS database. When 
using the authentication manager each PostGIS connection gets its own 
ID which in turn is then referenced in the connection string to the 
layer. But now this ID to the PostGIS connection is different for each 
user, so the stored connection string in the template is not valid 
anymore. And each user has his own credentials for logging into 
PostGIS as well.


I see that I can give a custom ID to a connection in the 
authentication manager, but it is locked by default, so I am hesitant 
to unlock it. But is this a viable option? Create the PostGIS 
connection under the same ID for each user?


There's also the PostgreSQL connection service file [1] which might be 
an option? Does anyone have some experience to share, especially when 
talking Windows PC?


How do you manage PostGIS connections for "simple" users on a somewhat 
larger scale? I am talking about 20 users, just enough to be annoying 
enough for manual deployment ...


Many thanks for any tips,

Frank


[1] https://www.postgresql.org/docs/12/libpq-pgservice.html

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Re: [Qgis-user] QGIS project templates and PostGIS connections

[Alessandro Pasotti]

Hi Frank,

you can safely use a custom authentication ID for the connection (choose
something easy to type), then instruct your users to create an
authentication configuration with the same ID but with their own
credentials.

This could be automated at the company level with a custom python init
script, you can even place that on a network folder for easy access from
sys admins.

There used to be some examples around back from Boundless times, probably a
little old but you can get the idea.

https://boundless-desktop.readthedocs.io/en/latest/system_admins/init_scripts.html#add-an-authentication-configuration

Hope this helps.


On Mon, Nov 22, 2021 at 8:42 PM Frank Broniewski 
wrote:

> Hi fellow QGIS user!
>
> I am scratching my head on the following problem. I want to create a
> QGIS project template which has PostGIS layers in it. I want to be able
> to pass this template to other users who might use them for different
> tasks.
>
> The problem now is the connection string to the PostGIS database. When
> using the authentication manager each PostGIS connection gets its own ID
> which in turn is then referenced in the connection string to the layer.
> But now this ID to the PostGIS connection is different for each user, so
> the stored connection string in the template is not valid anymore. And
> each user has his own credentials for logging into PostGIS as well.
>
> I see that I can give a custom ID to a connection in the authentication
> manager, but it is locked by default, so I am hesitant to unlock it. But
> is this a viable option? Create the PostGIS connection under the same ID
> for each user?
>
> There's also the PostgreSQL connection service file [1] which might be
> an option? Does anyone have some experience to share, especially when
> talking Windows PC?
>
> How do you manage PostGIS connections for "simple" users on a somewhat
> larger scale? I am talking about 20 users, just enough to be annoying
> enough for manual deployment ...
>
> Many thanks for any tips,
>
> Frank
>
>
> [1] https://www.postgresql.org/docs/12/libpq-pgservice.html
>
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-- 
Alessandro Pasotti
QCooperative:  www.qcooperative.net
ItOpen:   www.itopen.it
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Re: [Qgis-user] QGIS project templates and PostGIS connections

[Bo Victor Thomsen]

This answer is somewhat old; there might be a better solution:

https://gis.stackexchange.com/questions/247454/simplify-postgis-authentication-process-from-qgis

and directory .qgis2 is replaced by a profile directory:  Menu item 
"Settings"->"Open Active Profile Folder"


Med venlig hilsen / Kind regards

Bo Victor Thomsen

Den 22-11-2021 kl. 20:35 skrev Frank Broniewski:

Hi fellow QGIS user!

I am scratching my head on the following problem. I want to create a 
QGIS project template which has PostGIS layers in it. I want to be 
able to pass this template to other users who might use them for 
different tasks.


The problem now is the connection string to the PostGIS database. When 
using the authentication manager each PostGIS connection gets its own 
ID which in turn is then referenced in the connection string to the 
layer. But now this ID to the PostGIS connection is different for each 
user, so the stored connection string in the template is not valid 
anymore. And each user has his own credentials for logging into 
PostGIS as well.


I see that I can give a custom ID to a connection in the 
authentication manager, but it is locked by default, so I am hesitant 
to unlock it. But is this a viable option? Create the PostGIS 
connection under the same ID for each user?


There's also the PostgreSQL connection service file [1] which might be 
an option? Does anyone have some experience to share, especially when 
talking Windows PC?


How do you manage PostGIS connections for "simple" users on a somewhat 
larger scale? I am talking about 20 users, just enough to be annoying 
enough for manual deployment ...


Many thanks for any tips,

Frank


[1] https://www.postgresql.org/docs/12/libpq-pgservice.html

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[Qgis-user] QGIS project templates and PostGIS connections

[Frank Broniewski]

Hi fellow QGIS user!

I am scratching my head on the following problem. I want to create a 
QGIS project template which has PostGIS layers in it. I want to be able 
to pass this template to other users who might use them for different tasks.


The problem now is the connection string to the PostGIS database. When 
using the authentication manager each PostGIS connection gets its own ID 
which in turn is then referenced in the connection string to the layer. 
But now this ID to the PostGIS connection is different for each user, so 
the stored connection string in the template is not valid anymore. And 
each user has his own credentials for logging into PostGIS as well.


I see that I can give a custom ID to a connection in the authentication 
manager, but it is locked by default, so I am hesitant to unlock it. But 
is this a viable option? Create the PostGIS connection under the same ID 
for each user?


There's also the PostgreSQL connection service file [1] which might be 
an option? Does anyone have some experience to share, especially when 
talking Windows PC?


How do you manage PostGIS connections for "simple" users on a somewhat 
larger scale? I am talking about 20 users, just enough to be annoying 
enough for manual deployment ...


Many thanks for any tips,

Frank


[1] https://www.postgresql.org/docs/12/libpq-pgservice.html

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Re: [Qgis-user] QGIS Project

[Martin Weis]

Hello Marco!

Am 12.04.2018 um 08:31 schrieb Marco Dinges:
> What my question is now about, is that I want to receive position
> data (coordinates) from another program (not a GPS) on the raspberry
> and track that position on my map. Even better with a visualization
> on my desktop. Another thing I want to do is something like a
> navigation system, where I can give coordinates to the map and get a
> live navigation back from it.
> 
> Is something like pushing your own Position data on the map while
> being online generally possible?
> 
> How should I start working on it and where might I find more
> Information about that?

Sounds like you should look into a gpsd, which usually provides
(network) APIs for GPS data, but you should be able to push your own
data through it (maybe only geographical coordinates), included tools
like gpsfake come to my mind for a quick start.

Then you can use the standard GPS input in QGIS (or one of the many
other tools able to listen to gpsd).

Martin
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[Qgis-user] QGIS Project

[Marco Dinges]

Hey everyone,

I am new to QGIS and GIS and general and I hope to find some answers for my
project.

First I want to create my own map with an own coordinate system in QGIS.
For this I am working with the training manual right now to get a good
overview of everything QGIS has to offer.
Afterwards I want to transfer this map on a Raspberry Pi 3 Model B. From
what I heard, others already got this done and I think this should also be
possible for me.

What my question is now about, is that I want to receive position data
(coordinates) from another program (not a GPS) on the raspberry and track
that position on my map. Even better with a visualization on my desktop.
Another thing I want to do is something like a navigation system, where I
can give coordinates to the map and get a live navigation back from it.

Is something like pushing your own Position data on the map while being
online generally possible?

How should I start working on it and where might I find more Information
about that?

I hope I am even at the right place here for this. If not I am sorry and
hope you guys will correct me!


Greetings

Marco
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Re: [Qgis-user] qgis project with large number of wfs services

[Jorge Gustavo Rocha]

Hi Holger,

This subject was discussed recently in this list.
You can disable the local cache to avoid this issue. try to find the
discussion thread.

Regards,

Jorge Gustavo

On 07-09-2017 07:20, Holger Naumann wrote:
> Hi list,
> I try to load lots of wfs layers to my qgis project.
> After some layers I get a error message.
> 
> ERROR: Too many connections: max 64
> ERROR unable to initialize the SpatiaLite extension: NULL cache !!!
> ERROR: Too many connections: max 64
> ERROR 6: Creating a Spatialite database, but Spatialite extensions are
> not loaded.
> 
> All of the attribute tables where empty after this error.
> It is possible to increase the number of connections?
> 
> Greetings, Holger
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J. Gustavo
-- 
Jorge Gustavo Rocha
Departamento de Informática
Universidade do Minho
4710-057 Braga
Tel: +351 253604480
Fax: +351 253604471
Móvel: +351 910333888
skype: nabocudnosor
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[Qgis-user] qgis project with large number of wfs services

[Holger Naumann]

Hi list,
I try to load lots of wfs layers to my qgis project.
After some layers I get a error message.

ERROR: Too many connections: max 64
ERROR unable to initialize the SpatiaLite extension: NULL cache !!!
ERROR: Too many connections: max 64
ERROR 6: Creating a Spatialite database, but Spatialite extensions are 
not loaded.


All of the attribute tables where empty after this error.
It is possible to increase the number of connections?

Greetings, Holger
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Re: [Qgis-user] QGIS project background colour not appearing in print composer?

[McDonaldR]

Hi Chris

If I set a background colour on the map canvas in 2.16.2 (through file > 
project properties) and then create a new composter and add a map frame the 
colour is there in the background.

What version of QGIS are you using?  You shouldn't have to do anything.  Only 
thing I can think of is that you've changed the background colour in the QGIS 
canvas and legend setting where it is overridden by project settings.

Cheers

Ross

[cid:image003.jpg@01D213F2.6DD7AC70]

From: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Chris 
Buckmaster
Sent: 21 September 2016 10:15
To: qgis-user@lists.osgeo.org
Subject: [Qgis-user] QGIS project background colour not appearing in print 
composer?

Hi

I have a non-white project background colour selected in my project but when I 
open the print composer it doesn't appear to add this onto my map - I am 
wondering is this just how the print composer works, or do I need to enable / 
configure any additional options so that my project background will be included 
on my print composer page?

Thanks, Chris

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[Qgis-user] QGIS project background colour not appearing in print composer?

[Chris Buckmaster]

Hi

I have a non-white project background colour selected in my project but when I 
open the print composer it doesn't appear to add this onto my map - I am 
wondering is this just how the print composer works, or do I need to enable / 
configure any additional options so that my project background will be included 
on my print composer page?

Thanks, Chris
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[Qgis-user] QGIS project not opening with WMS layer after exporting as PDF in print composer?

[Chris Buckmaster]

Hi

I came across this problem before in a previous version but seem to be having 
the same issue in 2.16.0.

I have a project with a fairly simple PostGIS polygon layer and a WMS layer - I 
then use the print composer to compose a basic map, and then export it to a 
PDF. After saving the project and print composer, closing the project down and 
trying to re-open, the project opens, but the layers do not draw up and the 
'Project loaded' message stays in the bottom left hand corner along with the 
blue status bar and does not move. I try to click on a layer and it goes to not 
responding.

Just wondering if anyone else has this problem? As mentioned it has happened in 
previous versions where I have exported PDFs with a WMS layer and then when I 
try to reopen the project it seems to fail.

Thanks, Chris


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Re: [Qgis-user] QGIS project with no projection

[Andrew Harfoot]

Hi Simon,

Sorry for the confusion - GeoTiff is a standard for embedding the 
georeferencing information within the tif image file. A GeoTiff will 
usually contain the CRS information as well. A tfw file is an example of 
a world file, not a GeoTiff. It is an alternative approach to conveying 
georeferencing information, with the drawback of not also documenting 
the CRS of the georeferencing as you say.


Any possibility of sharing the image in question to allow people to 
suggest solutions?


Cheers,

Andy

On 11/05/2016 10:07, simonc8 wrote:

Thanks for all the responses.

I've tried the various suggestions but can't get my tiff to import properly
without specifying a projection. Even following the steps suggested in Lee
Hachadoorian's post the tiff imports and appears to show the correct units
in the information bar but when I measure distances using the Measure tool
these are nothing like what they should be.

Incidentally a geotiff doesn't necessarily have any projection information -
if you have a .tif file and an accompanying .tfw file it will merely
register the image using the coordinates specified in the .tfw file with no
information about what these refer to.



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GeoData Institute
University of Southampton
Southampton
SO17 1BJ

Tel:  +44 (0)23 8059 2719
Fax:  +44 (0)23 8059 2849

www.geodata.soton.ac.uk

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Re: [Qgis-user] QGIS project with no projection

[Nicolas Cadieux]

Hi, 
I haven't been fowling the thread closely but when I have something to do and 
don't want it necessarily georeferenced, I just use a local UTM zone in 
meters... 
 
Nicolas 

On May 11, 2016 05:07, simonc8 [via OSGeo.org] 
ml-node+s1560n5265735...@n6.nabble.com wrote: 

Thanks for all the responses.
Ive tried the various suggestions but cant get my tiff to import 
properly without specifying a projection. Even following the steps suggested in 
Lee Hachadoorians post the tiff imports and appears to show the correct 
units in the information bar but when I measure distances using the Measure 
tool these are nothing like what they should be.
Incidentally a geotiff doesnt necessarily have any projection information 
- if you have a .tif file and an accompanying .tfw file it will merely register 
the image using the coordinates specified in the .tfw file with no information 
about what these refer to.








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Re: [Qgis-user] QGIS project with no projection

[simonc8]

Thanks for all the responses.

I've tried the various suggestions but can't get my tiff to import properly
without specifying a projection. Even following the steps suggested in Lee
Hachadoorian's post the tiff imports and appears to show the correct units
in the information bar but when I measure distances using the Measure tool
these are nothing like what they should be.

Incidentally a geotiff doesn't necessarily have any projection information -
if you have a .tif file and an accompanying .tfw file it will merely
register the image using the coordinates specified in the .tfw file with no
information about what these refer to.



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Re: [Qgis-user] QGIS project with no projection

[Andrew Harfoot]

QGIS is configured into a non-earth or local CRS mode by doing the 
following (in 2.14):


1. Turn off 'On the Fly CRS transformation' (Project > Project 
Properties > CRS)
2. Ensure that the measurement ellipsoid is set to 'None / Planimetric' 
(Project > Project Properties > General)
3. Set the coordinate, distance and area units to 'Map Units' (Project > 
Project Properties > General)


All of these can also be set in the application level settings as the 
defaults. QGIS can also be prevented from prompting for a CRS when 
loading data that does not have one (QGIS still assigns a CRS, but 
essentially it is ignored, so this isn't quite what Simon was asking 
for, but close)


The LocalCoordinateSystemSetter in FME creates custom CRS for features 
passing through it, optimising them for equal area or distance. The same 
customised CRS could be implemented in QGIS, what is missing is a tool / 
plugin that would automatically generate them.


Cheers,

Andy

On 06/05/2016 17:03, Jonathan Moules wrote:
There have been some more knowledgeable responses than mine, but they 
do make me ask:
Why doesn't QGIS have a generic Coordinate System for X/Y in meters 
(and maybe one in feet for the less developed nations ;-) )? It would 
be particularly useful for non-geographical datasets and would open 
QGIS up to being used more readily in other fields.


Similarly, it could have generic projections for equal area and equal 
distance calculations too. I know these are all possible because FME 
has all these features.

After all, there's no reason spatial data has to be GEOspatial data.

Cheers,
Jonathan



 On Fri, 06 May 2016 16:28:45 +0100 *Lee 
Hachadoorian* wrote 


Simon,

You *must* specify a projection, but within some limits, the
projection doesn't matter. Basically, if the GeoTIFF uses units of
meters and you want your distances in meters, you can load the
GeoTIFF in *any* projected CRS that uses meters. An example would
be to use any of the UTM zones. You cannot use a lat-long CRS such
as the default WGS 84, because QGIS will convert (naively, *not*
using great circle distances) from decimal degrees to meters.

Once the layer is loaded, all geometry calculations are done in a
Cartesian plane.

I answered a similar question on GIS.SE  regarding
someone who wanted to use QGIS to map indoor location data.


http://gis.stackexchange.com/questions/187699/how-to-create-a-qgis-map-of-unprojected-data

Best,
--Lee

On Fri, May 6, 2016 at 10:12 AM, Jonathan Moules
> wrote:

Hi Simon,
If you know the real-world width and height of the area
covered on the image, could you not geo-reference it to have
lower-left at 0,0, and then the top-right at the applicable
location in the projection of your choice, and then work from
there?

The problem is picking an applicable projection. I can't see
any generic "X,Y" projection, let alone one that is suited to
equal-area or equal-distance in the projections list. They may
exist, I'm just failing to find them. They all seem to assume
they're "somewhere" in the world (which can be a problem if
the data is spatial but not geographical).
Personally if it's a relatively small area (a few km across),
I'd probably just use a standard Mercator for the applicable
part of the world probably.

Cheers,
Jonathan



 On Fri, 06 May 2016 13:33:47 +0100
*simonc8>* wrote 

I want to use QGIS to make measurements such as distances
and angles on a
flat scaled image which I have as a georeferenced tiff. I
don't want to use
any projection - just a straightforward orthogonal linear
scale in metres.
QGIS seems to require that I choose a projection. What
would be the best
choice for my needs? Can I make a custom projection with
no ellipsoid or
datum?

If I import my geotiff and don't specify a projection QGIS
assumes my units
are in degrees rather than metres, which will make
measurement of distances
and angles inaccurate.

Grateful for assistance.



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Re: [Qgis-user] QGIS project with no projection

[Jonathan Moules]

There have been some more knowledgeable responses than mine, but they do make 
me ask:
Why doesn't QGIS have a generic Coordinate System for X/Y in meters (and maybe 
one in feet for the less developed nations ;-) )? It would be particularly 
useful for non-geographical datasets and would open QGIS up to being used more 
readily in other fields.

Similarly, it could have generic projections for equal area and equal distance 
calculations too. I know these are all possible because FME has all these 
features.
After all, there's no reason spatial data has to be GEOspatial data.

Cheers,
Jonathan



 On Fri, 06 May 2016 16:28:45 +0100 Lee 
Hachadoorianlee.hachadooria...@gmail.com wrote  

Simon,

You *must* specify a projection, but within some limits, the projection doesn't 
matter. Basically, if the GeoTIFF uses units of meters and you want your 
distances in meters, you can load the GeoTIFF in *any* projected CRS that uses 
meters. An example would be to use any of the UTM zones. You cannot use a 
lat-long CRS such as the default WGS 84, because QGIS will convert (naively, 
*not* using great circle distances) from decimal degrees to meters.


Once the layer is loaded, all geometry calculations are done in a Cartesian 
plane.


I answered a similar question on GIS.SE regarding someone who wanted to use 
QGIS to map indoor location data.


http://gis.stackexchange.com/questions/187699/how-to-create-a-qgis-map-of-unprojected-data



Best,
--Lee


On Fri, May 6, 2016 at 10:12 AM, Jonathan Moules 
jonathan-li...@lightpear.com wrote:
Hi Simon,
If you know the real-world width and height of the area covered on the image, 
could you not geo-reference it to have lower-left at 0,0, and then the 
top-right at the applicable location in the projection of your choice, and then 
work from there?

The problem is picking an applicable projection. I can't see any generic "X,Y" 
projection, let alone one that is suited to equal-area or equal-distance in the 
projections list. They may exist, I'm just failing to find them. They all seem 
to assume they're "somewhere" in the world (which can be a problem if the data 
is spatial but not geographical).
Personally if it's a relatively small area (a few km across), I'd probably just 
use a standard Mercator for the applicable part of the world probably.

Cheers,
Jonathan



 On Fri, 06 May 2016 13:33:47 +0100 simonc8simoncrom...@onetel.com 
wrote  

I want to use QGIS to make measurements such as distances and angles on a
flat scaled image which I have as a georeferenced tiff. I don't want to use
any projection - just a straightforward orthogonal linear scale in metres.
QGIS seems to require that I choose a projection. What would be the best
choice for my needs? Can I make a custom projection with no ellipsoid or
datum?

If I import my geotiff and don't specify a projection QGIS assumes my units
are in degrees rather than metres, which will make measurement of distances
and angles inaccurate.

Grateful for assistance. 



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-- 
Lee Hachadoorian
Asst Professor of Geography, Dartmouth College
http://freecity.commons.gc.cuny.edu/
 
 




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Re: [Qgis-user] QGIS project with no projection

[Andrew Harfoot]

Hi Simon,

Surely if your image is georeferenced, then it will have been done so to 
a CRS (not necessarily a projected one though). However, if you don't 
know the CRS (and it appears that QGIS cannot extract it from the 
GeoTiff if it is prompting you), but you do know the georeferenced units 
used, then you can achieve what you ask by disabling on the fly 
reprojection in QGIS. This has the effect of disregarding CRS 
information, and treating the coordinates of the data as cartesian (even 
if they are geographic). Distance and area are measured on the plane. If 
you set the measurement units under Project > Project Properties > 
General to 'Map units', then they will be the units of the data, 
regardless of what QGIS actually thinks they are.


Cheers,

Andy

On 06/05/2016 13:33, simonc8 wrote:

I want to use QGIS to make measurements such as distances and angles on a
flat scaled image which I have as a georeferenced tiff. I don't want to use
any projection - just a straightforward orthogonal linear scale in metres.
QGIS seems to require that I choose a projection. What would be the best
choice for my needs? Can I make a custom projection with no ellipsoid or
datum?

If I import my geotiff and don't specify a projection QGIS assumes my units
are in degrees rather than metres, which will make measurement of distances
and angles inaccurate.

Grateful for assistance.



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--
Andy Harfoot

GeoData Institute
University of Southampton
Southampton
SO17 1BJ

Tel:  +44 (0)23 8059 2719
Fax:  +44 (0)23 8059 2849

www.geodata.soton.ac.uk

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Re: [Qgis-user] QGIS project with no projection

[Lee Hachadoorian]

Simon,

You *must* specify a projection, but within some limits, the projection
doesn't matter. Basically, if the GeoTIFF uses units of meters and you want
your distances in meters, you can load the GeoTIFF in *any* projected CRS
that uses meters. An example would be to use any of the UTM zones. You
cannot use a lat-long CRS such as the default WGS 84, because QGIS will
convert (naively, *not* using great circle distances) from decimal degrees
to meters.

Once the layer is loaded, all geometry calculations are done in a Cartesian
plane.

I answered a similar question on GIS.SE regarding someone who wanted to use
QGIS to map indoor location data.

http://gis.stackexchange.com/questions/187699/how-to-create-a-qgis-map-of-unprojected-data

Best,
--Lee

On Fri, May 6, 2016 at 10:12 AM, Jonathan Moules <
jonathan-li...@lightpear.com> wrote:

> Hi Simon,
> If you know the real-world width and height of the area covered on the
> image, could you not geo-reference it to have lower-left at 0,0, and then
> the top-right at the applicable location in the projection of your choice,
> and then work from there?
>
> The problem is picking an applicable projection. I can't see any generic
> "X,Y" projection, let alone one that is suited to equal-area or
> equal-distance in the projections list. They may exist, I'm just failing to
> find them. They all seem to assume they're "somewhere" in the world (which
> can be a problem if the data is spatial but not geographical).
> Personally if it's a relatively small area (a few km across), I'd probably
> just use a standard Mercator for the applicable part of the world probably.
>
> Cheers,
> Jonathan
>
>
>
>  On Fri, 06 May 2016 13:33:47 +0100 *simonc8 >* wrote 
>
> I want to use QGIS to make measurements such as distances and angles on a
> flat scaled image which I have as a georeferenced tiff. I don't want to use
> any projection - just a straightforward orthogonal linear scale in metres.
> QGIS seems to require that I choose a projection. What would be the best
> choice for my needs? Can I make a custom projection with no ellipsoid or
> datum?
>
> If I import my geotiff and don't specify a projection QGIS assumes my units
> are in degrees rather than metres, which will make measurement of distances
> and angles inaccurate.
>
> Grateful for assistance.
>
>
>
> --
> View this message in context:
> http://osgeo-org.1560.x6.nabble.com/QGIS-project-with-no-projection-tp5264924.html
> Sent from the Quantum GIS - User mailing list archive at Nabble.com.
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-- 
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Asst Professor of Geography, Dartmouth College
http://freecity.commons.gc.cuny.edu/
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Re: [Qgis-user] QGIS project with no projection

[Jonathan Moules]

Hi Simon,
If you know the real-world width and height of the area covered on the image, 
could you not geo-reference it to have lower-left at 0,0, and then the 
top-right at the applicable location in the projection of your choice, and then 
work from there?

The problem is picking an applicable projection. I can't see any generic "X,Y" 
projection, let alone one that is suited to equal-area or equal-distance in the 
projections list. They may exist, I'm just failing to find them. They all seem 
to assume they're "somewhere" in the world (which can be a problem if the data 
is spatial but not geographical).
Personally if it's a relatively small area (a few km across), I'd probably just 
use a standard Mercator for the applicable part of the world probably.

Cheers,
Jonathan



 On Fri, 06 May 2016 13:33:47 +0100 simonc8simoncrom...@onetel.com 
wrote  

I want to use QGIS to make measurements such as distances and angles on a
flat scaled image which I have as a georeferenced tiff. I don't want to use
any projection - just a straightforward orthogonal linear scale in metres.
QGIS seems to require that I choose a projection. What would be the best
choice for my needs? Can I make a custom projection with no ellipsoid or
datum?

If I import my geotiff and don't specify a projection QGIS assumes my units
are in degrees rather than metres, which will make measurement of distances
and angles inaccurate.

Grateful for assistance. 



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[Qgis-user] QGIS project with no projection

[simonc8]

I want to use QGIS to make measurements such as distances and angles on a
flat scaled image which I have as a georeferenced tiff. I don't want to use
any projection - just a straightforward orthogonal linear scale in metres.
QGIS seems to require that I choose a projection. What would be the best
choice for my needs? Can I make a custom projection with no ellipsoid or
datum?

If I import my geotiff and don't specify a projection QGIS assumes my units
are in degrees rather than metres, which will make measurement of distances
and angles inaccurate.

Grateful for assistance. 



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[Qgis-user] QGIS project with no projection

[simonc8]

I want to use QGIS to make measurements on a flat scaled image which I have
as a georeferenced tiff. I don't want to use any projection - just a
straightforward orthogonal linear scale in metres. QGIS seems to require
that I choose a projection. What would be the best choice for my needs? Can
I make a custom projection with no ellipsoid or datum?

Grateful for assistance.



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Re: [Qgis-user] QGIS project not opening - print composer issue / bug?

[Goyo]

Seems to work for me in master.

2016-02-26 10:24 GMT+01:00 Chris Buckmaster :
> Hi
>
>
>
> I seem to have found an issue when using the print composer with a WMTS
> service which I would just like to know if it’s a bug, or if it might be
> something specific to my project / layers.
>
>
>
> My scenario is I add a WMTS layer to my project, I then create a print
> composer window to an A2 page size (it seems to be ok for smaller page
> sizes). I export the map to a PDF using all of the default export settings
> (I get a message about width / height limits but get this when exporting to
> a smaller page size) and it does export.
>
>
>
> I close my project, but when I try to reopen it, the project hangs and then
> goes to ‘not responding’.
>
>
>
> Is anyone else able to replicate this? Is this a known issue?
>
>
>
> Thanks, Chris
>
>
>
>
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[Qgis-user] QGIS project not opening - print composer issue / bug?

[Chris Buckmaster]

Hi

I seem to have found an issue when using the print composer with a WMTS service 
which I would just like to know if it's a bug, or if it might be something 
specific to my project / layers.

My scenario is I add a WMTS layer to my project, I then create a print composer 
window to an A2 page size (it seems to be ok for smaller page sizes). I export 
the map to a PDF using all of the default export settings (I get a message 
about width / height limits but get this when exporting to a smaller page size) 
and it does export.

I close my project, but when I try to reopen it, the project hangs and then 
goes to 'not responding'.

Is anyone else able to replicate this? Is this a known issue?

Thanks, Chris

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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Jürgen E . Fischer]

Hi,

On Mon, 07. Dec 2015 at 07:58:07 +1100, Nyall Dawson wrote:
> For reference I have a commonly-used WMS where the capabilities request is
> 9MB. Understandably, this is a significant issue with QGIS using this layer!
> I've learnt to live with it, but a cache would be VERY much appreciated.

As this thread cooled down.  Can I savely assume that everyone noticed 9c340d7
[0] and that it fixes the issue?

 
Jürgen

[0] https://github.com/qgis/QGIS/commit/9c340d7b4b8fb7bf03182155d2e883b084e31e8d

-- 
Jürgen E. Fischer   norBIT GmbH Tel. +49-4931-918175-31
Dipl.-Inf. (FH) Rheinstraße 13  Fax. +49-4931-918175-50
Software Engineer   D-26506 Norden http://www.norbit.de
QGIS release manager (PSC)  GermanyIRC: jef on FreeNode 



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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[kimaidou]

Thanks Jürgen for this commit.

Michaël

2015-12-09 16:49 GMT+01:00 Jürgen E. :

> Hi,
>
> On Mon, 07. Dec 2015 at 07:58:07 +1100, Nyall Dawson wrote:
> > For reference I have a commonly-used WMS where the capabilities request
> is
> > 9MB. Understandably, this is a significant issue with QGIS using this
> layer!
> > I've learnt to live with it, but a cache would be VERY much appreciated.
>
> As this thread cooled down.  Can I savely assume that everyone noticed
> 9c340d7
> [0] and that it fixes the issue?
>
>
> Jürgen
>
> [0]
> https://github.com/qgis/QGIS/commit/9c340d7b4b8fb7bf03182155d2e883b084e31e8d
>
> --
> Jürgen E. Fischer   norBIT GmbH Tel.
> +49-4931-918175-31
> Dipl.-Inf. (FH) Rheinstraße 13  Fax.
> +49-4931-918175-50
> Software Engineer   D-26506 Norden
> http://www.norbit.de
> QGIS release manager (PSC)  GermanyIRC: jef on FreeNode
>
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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Andrea Peri]

Hi , Jurgen,
I test it.
Now is more quickly.
From 7 minutes to about 45 seconds.

Really good.

ps: the qgis porject I share has some groups with the "mutually
exclusive" setting.
And notice that with the dev this seem always disabled.

I do some more test and open an issue eventually.

Thx again.


2015-12-09 16:49 GMT+01:00 Jürgen E. :
> Hi,
>
> On Mon, 07. Dec 2015 at 07:58:07 +1100, Nyall Dawson wrote:
>> For reference I have a commonly-used WMS where the capabilities request is
>> 9MB. Understandably, this is a significant issue with QGIS using this layer!
>> I've learnt to live with it, but a cache would be VERY much appreciated.
>
> As this thread cooled down.  Can I savely assume that everyone noticed 9c340d7
> [0] and that it fixes the issue?
>
>
> Jürgen
>
> [0] 
> https://github.com/qgis/QGIS/commit/9c340d7b4b8fb7bf03182155d2e883b084e31e8d
>
> --
> Jürgen E. Fischer   norBIT GmbH Tel. +49-4931-918175-31
> Dipl.-Inf. (FH) Rheinstraße 13  Fax. +49-4931-918175-50
> Software Engineer   D-26506 Norden http://www.norbit.de
> QGIS release manager (PSC)  GermanyIRC: jef on FreeNode
>
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-- 
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. . . . . . . . .
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-
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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Sandro Santilli]

On Sun, Dec 06, 2015 at 02:31:52PM +0100, aperi2007 wrote:

> Also I guess a the time lost is not only the request/response time, but also
> the parsing time of the response.
> A cache do not help on this.

It can ! Depending on what you cache, you may save
either (or both) download and parse time.

An URL could be mapped to a parsed content.
Or a content hash could be mapped to a parsed content.
Or both, to allow for caches of different lifetime.

--strk;
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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[aperi2007]

Of course,
but the result of the parsing of the getcapabilities response is an 
umpredictable set of results.

So it is very hard to store in a structured cache (aka a db).

In a response capabilities of a wms 3.0 thereis many information , all 
in multeplicitly N. And often optionally.
Also there the more complex of could be have a response "version=1.0", 
"or "version=1.1" or "version=1.1.1" or "version=1.3.0" changing the 
version mean changind the structure of the information and their structure.
So project a cache capacle to host in a structured structure the 
information extracted from a parsing for all four kind of version is 
really an huge work.


And all of this for a getcapabilites that more probably is absolutelly 
unuseful when start a project.

:)

A.



Il 06/12/2015 14:52, Sandro Santilli ha scritto:

On Sun, Dec 06, 2015 at 02:31:52PM +0100, aperi2007 wrote:


Also I guess a the time lost is not only the request/response time, but also
the parsing time of the response.
A cache do not help on this.

It can ! Depending on what you cache, you may save
either (or both) download and parse time.

An URL could be mapped to a parsed content.
Or a content hash could be mapped to a parsed content.
Or both, to allow for caches of different lifetime.

--strk;


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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[kimaidou]

Hi all

Why not "just" caching the getCapabilities response for the current QGIS
session ? This way, if you have 100 layers coming from the same WMS server,
only one request will be made when opening the project and the response
will be stored in cache and used for other layers.

Please open a feature request in the QGIS hub and attach your project for
further tests.

Michaël

2015-12-06 1:01 GMT+01:00 Andrea Peri :

> For who is interest to test the opening issue on wms layer.
> This is the link to retrieve the porject I'm using.
> It is a project for qgis 2.12 using only wms layers.
> The time to open is about 7 minutes.
>
> https://www.dropbox.com/s/he85dwlluvcv4rw/wms_project.zip?dl=0
>
> A.
>
>
> 2015-12-05 23:58 GMT+01:00 aperi2007 :
> > Hi,
> > I try to change the qgis project setting for the wms url the parameter:
> >
> > "Ignore GetMap/GetTitle URI reported in capabilities"
> >
> >
> > But the sniffer report me that the qgis is still doing the
> getcapabilities
> > request at start of project.
> >
> > If the getcapability reported url is to be ignored , why it is still
> calling
> > the getcapabilities at startup ?
> >
> > A.
> >
> >
> >
> >
> > Il 05/12/2015 23:45, aperi2007 ha scritto:
> >
> > Hi Jurgen,
> >
> > I know that the getmap url, getfeatureinfo ulr and getlegendgraphics url
> > couldbe significative different from the main url for the getcapability
> > request.
> > But when choose the layer I guess in the project was stored the three
> url.
> > Infact I see in the setting windows for new wms service is available the
> > option
> > "Ignore GetMap/GetTitle URI reported in capabilities"
> >
> > This mean that if I choose this option , it should avoid to read and
> parse
> > the getcapabilities url to retrieve the urls and this also mean (i guess)
> > that the url stored are the direct url for
> > getmap/getlegendgraphics/getfeatureinfo not for the getcapabilities.
> >
> > I check in the qgis project and I'm not able to understand if the url
> used
> > is for the getcapabilites or for the getmap request.
> > Infact our project use the same url for all.
> >
> >
> >
> crs=EPSG:3003dpiMode=allfeatureCount=10format=image/pnglayers=r_toscan_cst_foglistyles=url=
> http://www502.regione.toscana.it/wmsraster/com.rt.wms.RTmap/wms?map%3Dwmscastore
> 
> >
> >
> >
> >
> crs=EPSG:3003format=image/pnglayers=lett_c_aree_tutelatestyles=defaulturl=
> http://www502.regione.toscana.it/wmsraster/com.rt.wms.RTmap/wms?map%3Dwmspiapae%26version%3D1.3.0%26map_resolution%3D91%26map_mnt%3Dfotovolt
> 
> >
> > A.
> >
> > Il 05/12/2015 23:00, Jürgen E. Fischer ha scritto:
> >
> > Hi Andrea,
> >
> > On Sat, 05. Dec 2015 at 21:34:10 +0100, Andrea Peri wrote:
> >
> > But when I open a project where the wms layer are just added why do a
> > getcapabilites request for every wms layer in it ?
> >
> > The capabilities provide the urls for all the other requests (sometimes
> > pointing to other servers and sometimes even wrong - hence the ignoreUrl
> > options).
> >
> >
> > Jürgen
> >
> >
> >
> > ___
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> >
> >
> >
>
>
>
> --
> -
> Andrea Peri
> . . . . . . . . .
> qwerty àèìòù
> -
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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[aperi2007]

Hi,

When need to add a new wms layer is preferrable to avoid to use the 
cache but, instead, do a new getcapabilities request and list the layers 
as resulted by the xml response .
Also I guess a the time lost is not only the request/response time, but 
also the parsing time of the response.

A cache do not help on this.

The question is strictly referred to the open project time.

Also as reported yesterday.
If I check the option "Ignore GetMap/GetTitle URI reported in capabilities"
where qgis store the getmap/getfeatureinfo/getlegendgraphics urls ?
They seem to be no store no where.
So it can only use the unique url stored in the datasource tag.
These mean that qgis assume the url are the same for all three requests.
This could be reasonable.
But in this situation, QGIS do however a getcapabilities request.

I don't understand this.

So my dubt is that the getcapabilites request at startup of a project is 
really unuseful.
If this is the question perhaps also a cache would be only a redundant 
overstructure .


A.



Il 06/12/2015 12:35, kimaidou ha scritto:

Hi all

Why not "just" caching the getCapabilities response for the current 
QGIS session ? This way, if you have 100 layers coming from the same 
WMS server, only one request will be made when opening the project and 
the response will be stored in cache and used for other layers.


Please open a feature request in the QGIS hub and attach your project 
for further tests.


Michaël

2015-12-06 1:01 GMT+01:00 Andrea Peri >:


For who is interest to test the opening issue on wms layer.
This is the link to retrieve the porject I'm using.
It is a project for qgis 2.12 using only wms layers.
The time to open is about 7 minutes.

https://www.dropbox.com/s/he85dwlluvcv4rw/wms_project.zip?dl=0

A.


2015-12-05 23:58 GMT+01:00 aperi2007 >:
> Hi,
> I try to change the qgis project setting for the wms url the
parameter:
>
> "Ignore GetMap/GetTitle URI reported in capabilities"
>
>
> But the sniffer report me that the qgis is still doing the
getcapabilities
> request at start of project.
>
> If the getcapability reported url is to be ignored , why it is
still calling
> the getcapabilities at startup ?
>
> A.
>
>
>
>
> Il 05/12/2015 23:45, aperi2007 ha scritto:
>
> Hi Jurgen,
>
> I know that the getmap url, getfeatureinfo ulr and
getlegendgraphics url
> couldbe significative different from the main url for the
getcapability
> request.
> But when choose the layer I guess in the project was stored the
three url.
> Infact I see in the setting windows for new wms service is
available the
> option
> "Ignore GetMap/GetTitle URI reported in capabilities"
>
> This mean that if I choose this option , it should avoid to read
and parse
> the getcapabilities url to retrieve the urls and this also mean
(i guess)
> that the url stored are the direct url for
> getmap/getlegendgraphics/getfeatureinfo not for the getcapabilities.
>
> I check in the qgis project and I'm not able to understand if
the url used
> is for the getcapabilites or for the getmap request.
> Infact our project use the same url for all.
>
>
>

crs=EPSG:3003dpiMode=allfeatureCount=10format=image/pnglayers=r_toscan_cst_foglistyles=url=http://www502.regione.toscana.it/wmsraster/com.rt.wms.RTmap/wms?map%3Dwmscastore
>
>
>
>

crs=EPSG:3003format=image/pnglayers=lett_c_aree_tutelatestyles=defaulturl=http://www502.regione.toscana.it/wmsraster/com.rt.wms.RTmap/wms?map%3Dwmspiapae%26version%3D1.3.0%26map_resolution%3D91%26map_mnt%3Dfotovolt
>
> A.
>
> Il 05/12/2015 23:00, Jürgen E. Fischer ha scritto:
>
> Hi Andrea,
>
> On Sat, 05. Dec 2015 at 21:34:10 +0100, Andrea Peri wrote:
>
> But when I open a project where the wms layer are just added why
do a
> getcapabilites request for every wms layer in it ?
>
> The capabilities provide the urls for all the other requests
(sometimes
> pointing to other servers and sometimes even wrong - hence the
ignoreUrl
> options).
>
>
> Jürgen
>
>
>
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>
>



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. . . . . . . . .
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-
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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Nyall Dawson]

On 7 December 2015 at 00:31, aperi2007  wrote:
> Hi,
>
> When need to add a new wms layer is preferrable to avoid to use the cache
> but, instead, do a new getcapabilities request and list the layers as
> resulted by the xml response .
> Also I guess a the time lost is not only the request/response time, but also
> the parsing time of the response.
> A cache do not help on this.

Actually, it's not just that - it also slows down opening the layer
properties window for a WMS layer as the capabilities is requested
once again.

For reference I have a commonly-used WMS where the capabilities
request is 9MB. Understandably, this is a significant issue with QGIS
using this layer! I've learnt to live with it, but a cache would be
VERY much appreciated.

Nyall
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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Jürgen E . Fischer]

Hi Andrea,

On Sat, 05. Dec 2015 at 12:54:29 +0100, Andrea Peri wrote:
> The qgs is calling the same getlegendgraphics 10 times instead of one
> only time and reusing the same response for the other 9 wms layers.

Isn't the request different for each layer?   It should have a LAYERS parameter
for each and if contextual legend is enabled even a bounding box.  So that the
WMS server can produce a legend for the individual layers and maybe only for
the things that are visible in the extent and scale.


Jürgen

-- 
Jürgen E. Fischer   norBIT GmbH Tel. +49-4931-918175-31
Dipl.-Inf. (FH) Rheinstraße 13  Fax. +49-4931-918175-50
Software Engineer   D-26506 Norden http://www.norbit.de
QGIS release manager (PSC)  GermanyIRC: jef on FreeNode 



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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Sandro Santilli]

On Sat, Dec 05, 2015 at 06:06:05PM +0100, aperi2007 wrote:

> https://lists.osgeo.org/pipermail/qgis-user/2015-December/034593.html

[..]

> Insteal the problem is on the getcapabilites requests.
> They are repeated the same for every single wms layer indipendently
> if it is coming from the same wms service or not.

[..]

> A good enhancement for me could be to do one single getcapabilities
> request for every distinct wms service used in the project instead
> that one for every layer to avoid this waste redundancy of work.

Sounds worth an enhancement ticket.
A cache for capabilities request.

--strk;
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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[aperi2007]

Hi jurgen.

I have don more test using a sniffer.
As report in this
https://lists.osgeo.org/pipermail/qgis-user/2015-December/034593.html

The qgis do not do any request getlegendgraphics at startup .
This is good and well done.

Insteal the problem is on the getcapabilites requests.
They are repeated the same for every single wms layer indipendently if 
it is coming from the same wms service or not.


So for a service with 10 layers (we have a wms service with 100+ layers) 
and these layrs are added to a qgis project
one by one the qgis do 100 times the same getcapabilites requests and 
100 time parse the response.


A good enhancement for me could be to do one single getcapabilities 
request for every distinct wms service used in the project instead that 
one for every layer to avoid this waste redundancy of work.


A.


Il 05/12/2015 16:32, Jürgen E. Fischer ha scritto:

Hi Andrea,

On Sat, 05. Dec 2015 at 12:54:29 +0100, Andrea Peri wrote:

The qgs is calling the same getlegendgraphics 10 times instead of one
only time and reusing the same response for the other 9 wms layers.

Isn't the request different for each layer?   It should have a LAYERS parameter
for each and if contextual legend is enabled even a bounding box.  So that the
WMS server can produce a legend for the individual layers and maybe only for
the things that are visible in the extent and scale.


Jürgen



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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Andrea Peri]

Hi,

I test with a sniffer.
So I can exlude the GetLegendGraphics.
Infact it is not called at open project, but instead at open of the
legend folder.

Instead I see from the sniffer that the qgis is calling the
getcapabilites one time for every single wms layer.
This is a tremendous waste of time.
Infact a single wms server has more than one layer.
As example:
if a wms server has 10 layer and all of them are added at a project
like 10 distincts layer wms.
The qgs is calling the same getlegendgraphics 10 times instead of one
only time and reusing the same response for the other 9 wms layers.

Is this the explanation of this 5 minutes at the start up.

A.


2015-12-04 12:35 GMT+01:00 Bernhard Ströbl :
> I was just guessing what _might_ happen. Any chance you can check if QGIS
> sends GetLegendGraphics or GetCapabilities requests during these five
> minutes?
>
> Bernhard
>
>
> Am 04.12.2015 um 12:18 schrieb Andrea Peri:
>>
>> Oops !
>> I hope no.
>> :(
>>
>> AFAIK it should retrieve the legend image ONLY when I voluntary open
>> the legend in the tree.
>>
>> Before is often a waste of time.
>> Infact the legends in the wms is changing dipendently the scale of the
>> canvas, and retrieving several hundred of legend at an unuseful scale
>> is unusefult himself and a waste of time.
>>
>> A.
>>
>>
>>
>>
>>
>> 2015-12-04 12:10 GMT+01:00 Bernhard Ströbl :
>>>
>>> hi,
>>>
>>> maybe it tries to get the legend or the layer's bbox so you can zoom to
>>> it?
>>>
>>> just thoughts
>>>
>>> Bernhard
>>>
>>> Am 04.12.2015 um 12:06 schrieb Andrea Peri:


 Hi,

 I have a project with some hundred of wms layers.

 All switch off.

 When I open the project I see it take about 5 minutes to connect all of
 them.

 It try to connect to all the layers indipendendl if they are OFF or ON.

 Is this ok or an issue ?

 Thx,

>>>
>>>
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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[aperi2007]

Il 05/12/2015 21:52, Brent Wood ha scritto:
Can we assume a WMS service is unchanging? While some may well be, 
that is not a safe


Of course no. Is no right assume that a wms service in unchanging.

assumption to make, so running through the getcapabilities each time a 
project is opened seems reasonable.




I don't understand why.

I'd assume that within a session, once a layer has been successfully 
accessed & retrieved it is no longer necessary, but a project may not 
have been opened for months.




The getcapabilites could not help on this.
The wms layer could have change the style and the style actually used is 
no more available.
The wms layer himself could have the name changed and so is no more 
available in the getcapabilities.


How can the getcapabilites don helpin these and in other situation ?

The only real help is to verify if the layer is still available with its 
style.
But is more easy and efficient to wait and when the user Swtich-on the 
wms layer the first getmap if is failing return an xml exception that 
say all the response need to understand that the wms layer in the 
project is no more usable.


Instead of doing a getcapabilitis at the startup always.

A compromise could be, on opening a project with WMS layers, to 
(optionally) ask the user whether to validate WxS layers before 
opening them, allowing them to speed up the operation if they so 
desire. Or to have this as a project setting the user can toggle, but 
not something that should be disabled permanently.




The issue is when a project has many and more wms layer.
So ask to the user the validate one by one all the wms layer is too 
boring for a user.
Also ask to a user to do a similar ooperation ned to have an user that 
undersand what this mean.
Not all the gis user are capable to understand what mean validate an wms 
layer.



my 02c...

Brent Wood




*From:* Andrea Peri <aperi2...@gmail.com>
*To:* aperi2007 <aperi2...@gmail.com>; Jürgen E. <j...@norbit.de>; 
qgis-user <qgis-user@lists.osgeo.org>

*Sent:* Sunday, December 6, 2015 9:34 AM
*Subject:* Re: [Qgis-user] QGIS project slow to open when too much wms 
layers


Hi Sandro,

I study better the question and perhas this is more a strange issue.
Infact my doub is why is necessary a getCapability request when open a 
project ?


The getcapabilities is need for list the layers, choose the style,
choose the srs and retrieve the bounding-box of the layer.
All this action are need only when a new wms layer is to add at the
qgis project.
So these are all do when I open the WMS add layer windows.

But when I open a project where the wms layer are just added why do a
getcapabilites request for every wms layer in it ?

This is the question.

A.


2015-12-05 18:32 GMT+01:00 Sandro Santilli <s...@keybit.net 
<mailto:s...@keybit.net>>:

> On Sat, Dec 05, 2015 at 06:06:05PM +0100, aperi2007 wrote:
>
>> https://lists.osgeo.org/pipermail/qgis-user/2015-December/034593.html
>
> [..]
>
>> Insteal the problem is on the getcapabilites requests.
>> They are repeated the same for every single wms layer indipendently
>> if it is coming from the same wms service or not.
>
> [..]
>
>> A good enhancement for me could be to do one single getcapabilities
>> request for every distinct wms service used in the project instead
>> that one for every layer to avoid this waste redundancy of work.
>
> Sounds worth an enhancement ticket.
> A cache for capabilities request.
>
> --strk;



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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Andrea Peri]

For who is interest to test the opening issue on wms layer.
This is the link to retrieve the porject I'm using.
It is a project for qgis 2.12 using only wms layers.
The time to open is about 7 minutes.

https://www.dropbox.com/s/he85dwlluvcv4rw/wms_project.zip?dl=0

A.


2015-12-05 23:58 GMT+01:00 aperi2007 :
> Hi,
> I try to change the qgis project setting for the wms url the parameter:
>
> "Ignore GetMap/GetTitle URI reported in capabilities"
>
>
> But the sniffer report me that the qgis is still doing the getcapabilities
> request at start of project.
>
> If the getcapability reported url is to be ignored , why it is still calling
> the getcapabilities at startup ?
>
> A.
>
>
>
>
> Il 05/12/2015 23:45, aperi2007 ha scritto:
>
> Hi Jurgen,
>
> I know that the getmap url, getfeatureinfo ulr and getlegendgraphics url
> couldbe significative different from the main url for the getcapability
> request.
> But when choose the layer I guess in the project was stored the three url.
> Infact I see in the setting windows for new wms service is available the
> option
> "Ignore GetMap/GetTitle URI reported in capabilities"
>
> This mean that if I choose this option , it should avoid to read and parse
> the getcapabilities url to retrieve the urls and this also mean (i guess)
> that the url stored are the direct url for
> getmap/getlegendgraphics/getfeatureinfo not for the getcapabilities.
>
> I check in the qgis project and I'm not able to understand if the url used
> is for the getcapabilites or for the getmap request.
> Infact our project use the same url for all.
>
>
> crs=EPSG:3003dpiMode=allfeatureCount=10format=image/pnglayers=r_toscan_cst_foglistyles=url=http://www502.regione.toscana.it/wmsraster/com.rt.wms.RTmap/wms?map%3Dwmscastore
>
>
>
> crs=EPSG:3003format=image/pnglayers=lett_c_aree_tutelatestyles=defaulturl=http://www502.regione.toscana.it/wmsraster/com.rt.wms.RTmap/wms?map%3Dwmspiapae%26version%3D1.3.0%26map_resolution%3D91%26map_mnt%3Dfotovolt
>
> A.
>
> Il 05/12/2015 23:00, Jürgen E. Fischer ha scritto:
>
> Hi Andrea,
>
> On Sat, 05. Dec 2015 at 21:34:10 +0100, Andrea Peri wrote:
>
> But when I open a project where the wms layer are just added why do a
> getcapabilites request for every wms layer in it ?
>
> The capabilities provide the urls for all the other requests (sometimes
> pointing to other servers and sometimes even wrong - hence the ignoreUrl
> options).
>
>
> Jürgen
>
>
>
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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Jürgen E . Fischer]

Hi Andrea,

On Sat, 05. Dec 2015 at 21:34:10 +0100, Andrea Peri wrote:
> But when I open a project where the wms layer are just added why do a
> getcapabilites request for every wms layer in it ?

The capabilities provide the urls for all the other requests (sometimes
pointing to other servers and sometimes even wrong - hence the ignoreUrl
options).


Jürgen

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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[aperi2007]

Hi,
I try to change the qgis project setting for the wms url the parameter:

"Ignore GetMap/GetTitle URI reported in capabilities"


But the sniffer report me that the qgis is still doing the 
getcapabilities request at start of project.


If the getcapability reported url is to be ignored , why it is still 
calling the getcapabilities at startup ?


A.



Il 05/12/2015 23:45, aperi2007 ha scritto:

Hi Jurgen,

I know that the getmap url, getfeatureinfo ulr and getlegendgraphics 
url couldbe significative different from the main url for the 
getcapability request.

But when choose the layer I guess in the project was stored the three url.
Infact I see in the setting windows for new wms service is available 
the option

"Ignore GetMap/GetTitle URI reported in capabilities"

This mean that if I choose this option , it should avoid to read and 
parse the getcapabilities url to retrieve the urls and this also mean 
(i guess) that the url stored are the direct url for 
getmap/getlegendgraphics/getfeatureinfo not for the getcapabilities.


I check in the qgis project and I'm not able to understand if the url 
used is for the getcapabilites or for the getmap request.

Infact our project use the same url for all.

crs=EPSG:3003dpiMode=allfeatureCount=10format=image/pnglayers=r_toscan_cst_foglistyles=url=http://www502.regione.toscana.it/wmsraster/com.rt.wms.RTmap/wms?map%3Dwmscastore


crs=EPSG:3003format=image/pnglayers=lett_c_aree_tutelatestyles=defaulturl=http://www502.regione.toscana.it/wmsraster/com.rt.wms.RTmap/wms?map%3Dwmspiapae%26version%3D1.3.0%26map_resolution%3D91%26map_mnt%3Dfotovolt

A.

Il 05/12/2015 23:00, Jürgen E. Fischer ha scritto:

Hi Andrea,

On Sat, 05. Dec 2015 at 21:34:10 +0100, Andrea Peri wrote:

But when I open a project where the wms layer are just added why do a
getcapabilites request for every wms layer in it ?

The capabilities provide the urls for all the other requests (sometimes
pointing to other servers and sometimes even wrong - hence the ignoreUrl
options).


Jürgen



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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Andrea Peri]

Hi Sandro,

I study better the question and perhas this is more a strange issue.
Infact my doub is why is necessary a getCapability request when open a project ?

The getcapabilities is need for list the layers, choose the style,
choose the srs and retrieve the bounding-box of the layer.
All this action are need only when a new wms layer is to add at the
qgis project.
So these are all do when I open the WMS add layer windows.

But when I open a project where the wms layer are just added why do a
getcapabilites request for every wms layer in it ?

This is the question.

A.


2015-12-05 18:32 GMT+01:00 Sandro Santilli :
> On Sat, Dec 05, 2015 at 06:06:05PM +0100, aperi2007 wrote:
>
>> https://lists.osgeo.org/pipermail/qgis-user/2015-December/034593.html
>
> [..]
>
>> Insteal the problem is on the getcapabilites requests.
>> They are repeated the same for every single wms layer indipendently
>> if it is coming from the same wms service or not.
>
> [..]
>
>> A good enhancement for me could be to do one single getcapabilities
>> request for every distinct wms service used in the project instead
>> that one for every layer to avoid this waste redundancy of work.
>
> Sounds worth an enhancement ticket.
> A cache for capabilities request.
>
> --strk;



-- 
-
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. . . . . . . . .
qwerty àèìòù
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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[aperi2007]

Hi Jurgen,

I know that the getmap url, getfeatureinfo ulr and getlegendgraphics url 
couldbe significative different from the main url for the getcapability 
request.

But when choose the layer I guess in the project was stored the three url.
Infact I see in the setting windows for new wms service is available the 
option

"Ignore GetMap/GetTitle URI reported in capabilities"

This mean that if I choose this option , it should avoid to read and 
parse the getcapabilities url to retrieve the urls and this also mean (i 
guess) that the url stored are the direct url for 
getmap/getlegendgraphics/getfeatureinfo not for the getcapabilities.


I check in the qgis project and I'm not able to understand if the url 
used is for the getcapabilites or for the getmap request.

Infact our project use the same url for all.

crs=EPSG:3003dpiMode=allfeatureCount=10format=image/pnglayers=r_toscan_cst_foglistyles=url=http://www502.regione.toscana.it/wmsraster/com.rt.wms.RTmap/wms?map%3Dwmscastore


crs=EPSG:3003format=image/pnglayers=lett_c_aree_tutelatestyles=defaulturl=http://www502.regione.toscana.it/wmsraster/com.rt.wms.RTmap/wms?map%3Dwmspiapae%26version%3D1.3.0%26map_resolution%3D91%26map_mnt%3Dfotovolt

A.

Il 05/12/2015 23:00, Jürgen E. Fischer ha scritto:

Hi Andrea,

On Sat, 05. Dec 2015 at 21:34:10 +0100, Andrea Peri wrote:

But when I open a project where the wms layer are just added why do a
getcapabilites request for every wms layer in it ?

The capabilities provide the urls for all the other requests (sometimes
pointing to other servers and sometimes even wrong - hence the ignoreUrl
options).


Jürgen



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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Bernhard Ströbl]

I was just guessing what _might_ happen. Any chance you can check if 
QGIS sends GetLegendGraphics or GetCapabilities requests during these 
five minutes?


Bernhard

Am 04.12.2015 um 12:18 schrieb Andrea Peri:

Oops !
I hope no.
:(

AFAIK it should retrieve the legend image ONLY when I voluntary open
the legend in the tree.

Before is often a waste of time.
Infact the legends in the wms is changing dipendently the scale of the
canvas, and retrieving several hundred of legend at an unuseful scale
is unusefult himself and a waste of time.

A.





2015-12-04 12:10 GMT+01:00 Bernhard Ströbl :

hi,

maybe it tries to get the legend or the layer's bbox so you can zoom to it?

just thoughts

Bernhard

Am 04.12.2015 um 12:06 schrieb Andrea Peri:


Hi,

I have a project with some hundred of wms layers.

All switch off.

When I open the project I see it take about 5 minutes to connect all of
them.

It try to connect to all the layers indipendendl if they are OFF or ON.

Is this ok or an issue ?

Thx,





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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Andrea Peri]

Oops !
I hope no.
:(

AFAIK it should retrieve the legend image ONLY when I voluntary open
the legend in the tree.

Before is often a waste of time.
Infact the legends in the wms is changing dipendently the scale of the
canvas, and retrieving several hundred of legend at an unuseful scale
is unusefult himself and a waste of time.

A.





2015-12-04 12:10 GMT+01:00 Bernhard Ströbl :
> hi,
>
> maybe it tries to get the legend or the layer's bbox so you can zoom to it?
>
> just thoughts
>
> Bernhard
>
> Am 04.12.2015 um 12:06 schrieb Andrea Peri:
>>
>> Hi,
>>
>> I have a project with some hundred of wms layers.
>>
>> All switch off.
>>
>> When I open the project I see it take about 5 minutes to connect all of
>> them.
>>
>> It try to connect to all the layers indipendendl if they are OFF or ON.
>>
>> Is this ok or an issue ?
>>
>> Thx,
>>
>
>
>
> __ Information from ESET Mail Security, version of virus signature
> database 12670 (20151204) __
>
> The message was checked by ESET Mail Security.
> http://www.eset.com
>
>
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Re: [Qgis-user] QGIS project slow to open when too much wms layers

[Bernhard Ströbl]

hi,

maybe it tries to get the legend or the layer's bbox so you can zoom to it?

just thoughts

Bernhard

Am 04.12.2015 um 12:06 schrieb Andrea Peri:

Hi,

I have a project with some hundred of wms layers.

All switch off.

When I open the project I see it take about 5 minutes to connect all of them.

It try to connect to all the layers indipendendl if they are OFF or ON.

Is this ok or an issue ?

Thx,





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database 12670 (20151204) __

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[Qgis-user] QGIS project slow to open when too much wms layers

[Andrea Peri]

Hi,

I have a project with some hundred of wms layers.

All switch off.

When I open the project I see it take about 5 minutes to connect all of them.

It try to connect to all the layers indipendendl if they are OFF or ON.

Is this ok or an issue ?

Thx,

-- 
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. . . . . . . . .
qwerty àèìòù
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[Qgis-user] QGis project file with relative paths

[Felix Obermaier]

Hello all,
I have set-up my project file with a bunch of shapefiles. I have removed 
absolute paths from the *.qgs file with an external editor.
Now I'm experiencing the following:
If I double-click the *.qgs file in the explorer, QGis opens it up and shows 
everything nicely.
If I open the same file from within QGis (File | Open | ...) QGis asks for 
every single shapefile layer.

Is there something wrong with relative paths in qgs files?

Thanks in advance
Felix Obermaier

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Re: [Qgis-user] QGis project file with relative paths

[Werner Macho]

Hi!

Which QGIS Version? Which operating System?
Is Save paths set to relative or absolute in General of the Project 
Properties or did you just change the .qgis project file?


I never changed something in the .qgs file - but everything works nice 
for me if i set Save paths to relative ..


regards
Werner

Am 23.05.2011 10:15, schrieb Felix Obermaier:

Hello all,
I have set-up my project file with a bunch of shapefiles. I have removed 
absolute paths from the *.qgs file with an external editor.
Now I'm experiencing the following:
If I double-click the *.qgs file in the explorer, QGis opens it up and shows 
everything nicely.
If I open the same file from within QGis (File | Open | ...) QGis asks for 
every single shapefile layer.

Is there something wrong with relative paths in qgs files?

Thanks in advance
Felix Obermaier

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52066 Aachen

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Re: [Qgis-user] QGis project file with relative paths

[Giovanni Manghi]

On Mon, 2011-05-23 at 10:15 +0200, Felix Obermaier wrote:
 Hello all,
 I have set-up my project file with a bunch of shapefiles. 
 I have removed absolute paths from the *.qgs file with an external editor.


you don't need to do it the hard way, there is an option in qgis to use
relative paths.


cheers

-- Giovanni --

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AW: [Qgis-user] QGis project file with relative paths

[Felix Obermaier]

Sorry, I must have missed that, but where do I have to find that option?
If I do it that way, does the project load properly from within QGis?
Thanks in advance
Felix Obermaier

 -Ursprüngliche Nachricht-
 Von: Giovanni Manghi [mailto:giovanni.man...@gmail.com]
 Gesendet: Montag, 23. Mai 2011 10:24
 An: Felix Obermaier
 Cc: qgis-user@lists.osgeo.org
 Betreff: Re: [Qgis-user] QGis project file with relative paths
 
 On Mon, 2011-05-23 at 10:15 +0200, Felix Obermaier wrote:
  Hello all,
  I have set-up my project file with a bunch of shapefiles.
  I have removed absolute paths from the *.qgs file with an external editor.
 
 
 you don't need to do it the hard way, there is an option in qgis to use 
 relative
 paths.
 
 
 cheers
 
 -- Giovanni --

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Re: AW: [Qgis-user] QGis project file with relative paths

[Giovanni Manghi]

On Mon, 2011-05-23 at 10:52 +0200, Felix Obermaier wrote:
 Sorry, I must have missed that, but where do I have to find that option?
 If I do it that way, does the project load properly from within QGis?
 Thanks in advance

project properties - general - save paths

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AW: AW: [Qgis-user] QGis project file with relative paths

[Felix Obermaier]

Thanks, that did the trick. Project loads fine
Felix Obermaier

 -Ursprüngliche Nachricht-
 Von: Giovanni Manghi [mailto:giovanni.man...@gmail.com]
 Gesendet: Montag, 23. Mai 2011 11:02
 An: Felix Obermaier
 Cc: qgis-user@lists.osgeo.org
 Betreff: Re: AW: [Qgis-user] QGis project file with relative paths
 
 On Mon, 2011-05-23 at 10:52 +0200, Felix Obermaier wrote:
  Sorry, I must have missed that, but where do I have to find that option?
  If I do it that way, does the project load properly from within QGis?
  Thanks in advance
 
 project properties - general - save paths

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Qgis-user@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/qgis-user