[Qgis-user] (no subject)

[Misbahudin Jamil]

Hi everyone!

Thanks for invitation.

Hope we can share anything useful.

-- 
Sincerely,


Misbahudin, M.Sc.

Phone: +6285811435418
Email: misbahudin...@gmail.com
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Re: [Qgis-user] Please remove me from all QGIS email lists

[Michael Hyslop]

Hi Amber

If you read the bottom of any message to the group it contains unsubscribe
information:

Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user


Best,
Mike


Sent from my phone. Please excuse brevity and autocorrect misspellings.


On Jul 1, 2019, at 10:12 PM, Amber P  wrote:

Hello 

I would like to stop receiving all QGIS user group emails.  Can you please
remove me from this group?

Thanks,
Amber

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[Qgis-user] Please remove me from all QGIS email lists

[Amber P]

Hello 

I would like to stop receiving all QGIS user group emails.  Can you please 
remove me from this group?

Thanks,
Amber

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Re: [Qgis-user] [QGIS-Developer] Sunrise, Sunset, Lunar Calculations

[Nyall Dawson]

On Tue, 2 Jul 2019 at 01:58, C Hamilton  wrote:
>
> Before I go too far with this I want to check to see if the following package 
> could be used in QGIS.
>
> astropy (https://www.astropy.org/) has a modified BSD-2 license. See 
> https://github.com/astropy/astropy/blob/master/LICENSE.rst
>
> This would be the library I would pick. It might be an overkill, but in the 
> long run it could also be used by anyone with imagery from the Moon, Venus, 
> Mars or any of the planets and it would have all the necessary functions they 
> would need. The activity on the project is very high. One thing I have not 
> checked is to see if their algorithms are historically and anciently accurate 
> which would be of interest to archaeologists.
>
> An astropy add on is astroplan (https://astroplan.readthedocs.io/en/latest/) 
> which has the same license and has a number of utilities that use astropy 
> that calculate sunrise, sunset, moon phase and illumination. It is not as 
> actively developed, but it may not need to be.
>
> Skyfield (https://rhodesmill.org/skyfield/, 
> https://github.com/skyfielders/python-skyfield/) seems to have a lot of the 
> basic routines, but it is primarily developed by one person. It has a MIT 
> license, but seems to be actively developed. This might be my second choice 
> of libraries.

The problem with both those libraries is that they are Python only --
this eliminates them as options, since we need c or c++ for it to be
usable in the 3d engine.

Nyall
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Re: [Qgis-user] [EXT] Re: Trouble with reading raster data from PostGIS

[Marks, Constant]

And when I double checked that I had both gdal drivers and out_db rasters 
enabled and restarted QGIS. I get this error:

2019-07-01T15:32:57 WARNINGtestr_3a8460bf_42d3_4bda_bb76_75a48b82780c 
:: PostGISRasterRasterBand::IRasterIO(): ERROR: rt_band_load_offline_data: 
Cannot open offline raster: SR_50M_alaska_nad.tif

From: Marks, Constant 
Sent: Monday, July 1, 2019 2:37 PM
To: Marks, Constant ; Jorge Gustavo Rocha 
; qgis-user@lists.osgeo.org
Subject: RE: [Qgis-user] [EXT] Re: Trouble with reading raster data from PostGIS

It seems that if I query the database with:

gdalinfo "PG:host=10.120.60.21 port=5432 dbname='gisdb'  user='postgres' 
password='***'' schema='public' table=smod"

I can get a response from every row.  I guess that QGIS is not passing the user 
and password correctly to GDAL.

From: Qgis-user 
mailto:qgis-user-boun...@lists.osgeo.org>> 
On Behalf Of Marks, Constant
Sent: Monday, July 1, 2019 2:07 PM
To: Jorge Gustavo Rocha mailto:j...@geomaster.pt>>; 
qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] [EXT] Re: Trouble with reading raster data from PostGIS

I am trying to trouble shoot and now when I try and add an out of DB raster I 
simply get a "Cannot open GDAL dataset PG: ..." error.

From: Qgis-user 
mailto:qgis-user-boun...@lists.osgeo.org>> 
On Behalf Of Jorge Gustavo Rocha
Sent: Monday, July 1, 2019 11:27 AM
To: qgis-user@lists.osgeo.org
Subject: [EXT] Re: [Qgis-user] Trouble with reading raster data from PostGIS


Hi,

You registered the raster out of the DB. You need to provide the full path for 
the raster, not just name.tif.

Regards,

Jorge Gustavo
Às 16:46 de 01/07/19, Marks, Constant escreveu:
Can anyone help me with getting my system setup correctly for adding raster 
layers from a Postgresgl10/PostFIS3 server setup on an RHEL7 server.

I can connect to the database and it shows up in my console but when I go to 
add a referenced raster layer from the Database Manager I get an error like 
this in the  Rendering Log:

smodr_5d83364e_b1aa_431d_b8af_c1b1c625710e :: 
PostGISRasterRasterBand::IRasterIO(): ERROR: rt_band_load_offline_data: Cannot 
open offline raster: name.tif

In the Layers dialog the extents show as 1.79769e+308/-1.79769e+308.

I can resolve this if I do not use the -R flag when importing the raster into 
pg using the rater2pgsql function.  I expect this has something to do with the 
postgis.enable_outdb_raster variable but changing this with SET 
postgis.enable_outdb_raster TO True does not help.
Any ideas?

Constant Marks
Research Assistant | Computer Science and Engineering
University of North Texas
Office: Discovery Parks F216
e: constant.ma...@unt.edu
t: (303) 482 7292



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VAT/NIF 510 906 109
Phone   +351 253 680 323
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GPS   41.53322, -8.41929


Jorge Gustavo Rocha
CTO

Mobile  +351 910 333 888
Emailj...@geomaster.pt

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Re: [Qgis-user] [EXT] Re: Trouble with reading raster data from PostGIS

[Marks, Constant]

It seems that if I query the database with:

gdalinfo "PG:host=10.120.60.21 port=5432 dbname='gisdb'  user='postgres' 
password='***'' schema='public' table=smod"

I can get a response from every row.  I guess that QGIS is not passing the user 
and password correctly to GDAL.

From: Qgis-user  On Behalf Of Marks, Constant
Sent: Monday, July 1, 2019 2:07 PM
To: Jorge Gustavo Rocha ; qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] [EXT] Re: Trouble with reading raster data from PostGIS

I am trying to trouble shoot and now when I try and add an out of DB raster I 
simply get a "Cannot open GDAL dataset PG: ..." error.

From: Qgis-user 
mailto:qgis-user-boun...@lists.osgeo.org>> 
On Behalf Of Jorge Gustavo Rocha
Sent: Monday, July 1, 2019 11:27 AM
To: qgis-user@lists.osgeo.org
Subject: [EXT] Re: [Qgis-user] Trouble with reading raster data from PostGIS


Hi,

You registered the raster out of the DB. You need to provide the full path for 
the raster, not just name.tif.

Regards,

Jorge Gustavo
Às 16:46 de 01/07/19, Marks, Constant escreveu:
Can anyone help me with getting my system setup correctly for adding raster 
layers from a Postgresgl10/PostFIS3 server setup on an RHEL7 server.

I can connect to the database and it shows up in my console but when I go to 
add a referenced raster layer from the Database Manager I get an error like 
this in the  Rendering Log:

smodr_5d83364e_b1aa_431d_b8af_c1b1c625710e :: 
PostGISRasterRasterBand::IRasterIO(): ERROR: rt_band_load_offline_data: Cannot 
open offline raster: name.tif

In the Layers dialog the extents show as 1.79769e+308/-1.79769e+308.

I can resolve this if I do not use the -R flag when importing the raster into 
pg using the rater2pgsql function.  I expect this has something to do with the 
postgis.enable_outdb_raster variable but changing this with SET 
postgis.enable_outdb_raster TO True does not help.
Any ideas?

Constant Marks
Research Assistant | Computer Science and Engineering
University of North Texas
Office: Discovery Parks F216
e: constant.ma...@unt.edu
t: (303) 482 7292



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[Logo]   Geomaster, LDA
  VENHA DESCOBRIR O CAMINHO DO OPEN SOURCE CONNOSCO

Avenida Barros e Soares
N.º 423, 4715-214 Braga
VAT/NIF 510 906 109
Phone   +351 253 680 323
Site   
geomaster.pt
GPS   41.53322, -8.41929


Jorge Gustavo Rocha
CTO

Mobile  +351 910 333 888
Emailj...@geomaster.pt

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Re: [Qgis-user] [EXT] Re: Trouble with reading raster data from PostGIS

[Marks, Constant]

I am trying to trouble shoot and now when I try and add an out of DB raster I 
simply get a "Cannot open GDAL dataset PG: ..." error.

From: Qgis-user  On Behalf Of Jorge Gustavo 
Rocha
Sent: Monday, July 1, 2019 11:27 AM
To: qgis-user@lists.osgeo.org
Subject: [EXT] Re: [Qgis-user] Trouble with reading raster data from PostGIS


Hi,

You registered the raster out of the DB. You need to provide the full path for 
the raster, not just name.tif.

Regards,

Jorge Gustavo
Às 16:46 de 01/07/19, Marks, Constant escreveu:
Can anyone help me with getting my system setup correctly for adding raster 
layers from a Postgresgl10/PostFIS3 server setup on an RHEL7 server.

I can connect to the database and it shows up in my console but when I go to 
add a referenced raster layer from the Database Manager I get an error like 
this in the  Rendering Log:

smodr_5d83364e_b1aa_431d_b8af_c1b1c625710e :: 
PostGISRasterRasterBand::IRasterIO(): ERROR: rt_band_load_offline_data: Cannot 
open offline raster: name.tif

In the Layers dialog the extents show as 1.79769e+308/-1.79769e+308.

I can resolve this if I do not use the -R flag when importing the raster into 
pg using the rater2pgsql function.  I expect this has something to do with the 
postgis.enable_outdb_raster variable but changing this with SET 
postgis.enable_outdb_raster TO True does not help.
Any ideas?

Constant Marks
Research Assistant | Computer Science and Engineering
University of North Texas
Office: Discovery Parks F216
e: constant.ma...@unt.edu
t: (303) 482 7292




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[Logo]   Geomaster, LDA
  VENHA DESCOBRIR O CAMINHO DO OPEN SOURCE CONNOSCO

Avenida Barros e Soares
N.º 423, 4715-214 Braga
VAT/NIF 510 906 109
Phone   +351 253 680 323
Site   
geomaster.pt
GPS   41.53322, -8.41929


Jorge Gustavo Rocha
CTO

Mobile  +351 910 333 888
Emailj...@geomaster.pt

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Re: [Qgis-user] Trouble with reading raster data from PostGIS

[Jorge Gustavo Rocha]

Hi,

You registered the raster out of the DB. You need to provide the full
path for the raster, not just name.tif.

Regards,

Jorge Gustavo

Às 16:46 de 01/07/19, Marks, Constant escreveu:
>
> Can anyone help me with getting my system setup correctly for adding
> raster layers from a Postgresgl10/PostFIS3 server setup on an RHEL7
> server.  
>
>  
>
> I can connect to the database and it shows up in my console but when I
> go to add a referenced raster layer from the Database Manager I get an
> error like this in the  Rendering Log:
>
>  
>
> /smodr_5d83364e_b1aa_431d_b8af_c1b1c625710e ::
> PostGISRasterRasterBand::IRasterIO(): ERROR:
> rt_band_load_offline_data: Cannot open offline raster://name.tif/
>
>  
>
> In the Layers dialog the extents show as 1.79769e+308/-1.79769e+308.
>
>  
>
> I can resolve this if I do not use the –R flag when importing the
> raster into pg using the rater2pgsql function.  I expect this has
> something to do with the postgis.enable_outdb_raster variable but
> changing this with SET postgis.enable_outdb_raster TO True does not help.
>
> Any ideas?
>
>  
>
> *Constant Marks
> *Research Assistant | Computer Science and Engineering
> University of North Texas
>
> Office: Discovery Parks F216 
> e: constant.ma...@unt.edu 
> t: (303) 482 7292 
>
>  
>
>
> ___
> Qgis-user mailing list
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> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
-- 
Logo*   Geomaster, LDA*
  *VENHA DESCOBRIR O CAMINHO DO OPEN SOURCE CONNOSC**O

*
 
Avenida Barros e Soares
N.º 423, 4715-214 Braga
VAT/NIF510 906 109
Phone  +351 253 680 323
Site   geomaster.pt 
GPS   41.53322, -8.41929


 
Jorge Gustavo Rocha
CTO

Mobile  +351 910 333 888
Email    j...@geomaster.pt


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Re: [Qgis-user] [QGIS-Developer] Sunrise, Sunset, Lunar Calculations

[C Hamilton]

Before I go too far with this I want to check to see if the following
package could be used in QGIS.

astropy (https://www.astropy.org/) has a modified BSD-2 license. See
https://github.com/astropy/astropy/blob/master/LICENSE.rst

This would be the library I would pick. It might be an overkill, but in the
long run it could also be used by anyone with imagery from the Moon, Venus,
Mars or any of the planets and it would have all the necessary functions
they would need. The activity on the project is very high. One thing I have
not checked is to see if their algorithms are historically and anciently
accurate which would be of interest to archaeologists.

An astropy add on is astroplan (https://astroplan.readthedocs.io/en/latest/)
which has the same license and has a number of utilities that use astropy
that calculate sunrise, sunset, moon phase and illumination. It is not as
actively developed, but it may not need to be.

Skyfield (https://rhodesmill.org/skyfield/,
https://github.com/skyfielders/python-skyfield/) seems to have a lot of the
basic routines, but it is primarily developed by one person. It has a MIT
license, but seems to be actively developed. This might be my second choice
of libraries.

Calvin


> I think (given Martin's desire to add this capability to the 3d
> engine) that yes, there's a valid use case for this. And I'd MUCH
> prefer to have this out of the box vs a 3rd party plugin. I'd suggest
> doing a review of the available libraries, in order to determine which
> are possible candidates wrt to features and license, and also
> determine how actively maintained upstream is, and then we can make an
> informed decision from there...
>
> Nyall
>
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Re: [Qgis-user] Using 3D map views with python console or in an atlas

[Ryan Brook (Perth)]

Hi Bob,

Yes we also use ffmpeg to merge our frames into video.

To create ‘flat’ videos like your examples we generate visibility presets with 
a script then export them using a QGIS atlas. This is what we were hoping we 
would be able to do with 3D views but have not had any success.

Regards,
Ryan
From: Basques, Bob (CI-StPaul) 
Sent: Monday, 1 July 2019 22:00
To: Ryan Brook (Perth) ; QGIS Mailing List 

Subject: Re: [Qgis-user] Using 3D map views with python console or in an 
atlas[External Sender]

Ryan,

Probably not what you were exactly looking for, but we’ve done something like 
this with MapServer and ffmpeg.  the combination of these two pieces of 
software let you generate all sorts of things as you describe.

Here are some sample outputs:

https://www.dropbox.com/s/15c6awmbd57vw54/latest.webm?dl=0

https://www.dropbox.com/s/587w7jb2e6pew10/latest_activity.webm?dl=0
Note: Wait for this one, it’s a recording of 24hr of use of a map service.  
It’s short, but doesn’t show much until 6-7 am.  It starts at midnight and 
chnages over the course of the day.

bobb






On Jun 29, 2019, at 3:47 AM, Ryan Brook (Perth) 
mailto:ryan.br...@advisian.com>> wrote:

Think Before You Click: This email originated outside our organization.

Hi,

We have made some videos using frames exported from a 3D map view.
We are not able to use the animation function within the 3D map as our camera 
is static and we are changing the visibility preset between each frame to load 
in a different time step.

Are any of the 3D map view capabilities exposed and useable from the QGIS 
python console? From some Google searches I could not find any discussion or 
documentation on the topic.
Our preferred workflow would be to be able to use the 3D map within an atlas so 
that we can add text and other items to the view (we are post processing the 
images to add this), however it does not appear that 3D views can be used with 
data defined overrides at this time.

Any direction you can provide would be appreciated as it is quite a manual 
process to export a reasonable number of frames to stitch together into a video.

Regards,
Ryan


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[Qgis-user] Trouble with reading raster data from PostGIS

[Marks, Constant]

Can anyone help me with getting my system setup correctly for adding raster 
layers from a Postgresgl10/PostFIS3 server setup on an RHEL7 server.

I can connect to the database and it shows up in my console but when I go to 
add a referenced raster layer from the Database Manager I get an error like 
this in the  Rendering Log:

smodr_5d83364e_b1aa_431d_b8af_c1b1c625710e :: 
PostGISRasterRasterBand::IRasterIO(): ERROR: rt_band_load_offline_data: Cannot 
open offline raster: name.tif

In the Layers dialog the extents show as 1.79769e+308/-1.79769e+308.

I can resolve this if I do not use the -R flag when importing the raster into 
pg using the rater2pgsql function.  I expect this has something to do with the 
postgis.enable_outdb_raster variable but changing this with SET 
postgis.enable_outdb_raster TO True does not help.
Any ideas?

Constant Marks
Research Assistant | Computer Science and Engineering
University of North Texas
Office: Discovery Parks F216
e: constant.ma...@unt.edu
t: (303) 482 7292

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Re: [Qgis-user] Using 3D map views with python console or in an atlas

[Basques, Bob (CI-StPaul)]

Ryan,

Probably not what you were exactly looking for, but we’ve done something like 
this with MapServer and ffmpeg.  the combination of these two pieces of 
software let you generate all sorts of things as you describe.

Here are some sample outputs:

https://www.dropbox.com/s/15c6awmbd57vw54/latest.webm?dl=0

https://www.dropbox.com/s/587w7jb2e6pew10/latest_activity.webm?dl=0
Note: Wait for this one, it’s a recording of 24hr of use of a map service.  
It’s short, but doesn’t show much until 6-7 am.  It starts at midnight and 
chnages over the course of the day.

bobb





On Jun 29, 2019, at 3:47 AM, Ryan Brook (Perth) 
mailto:ryan.br...@advisian.com>> wrote:

Think Before You Click: This email originated outside our organization.

Hi,

We have made some videos using frames exported from a 3D map view.
We are not able to use the animation function within the 3D map as our camera 
is static and we are changing the visibility preset between each frame to load 
in a different time step.

Are any of the 3D map view capabilities exposed and useable from the QGIS 
python console? From some Google searches I could not find any discussion or 
documentation on the topic.
Our preferred workflow would be to be able to use the 3D map within an atlas so 
that we can add text and other items to the view (we are post processing the 
images to add this), however it does not appear that 3D views can be used with 
data defined overrides at this time.

Any direction you can provide would be appreciated as it is quite a manual 
process to export a reasonable number of frames to stitch together into a video.

Regards,
Ryan


*** Advisian Notice *** "This email is confidential. If you are not the 
intended recipient, you must not disclose or use the information contained in 
it. If you have received this email in error, please notify us immediately by 
return email and delete the email and any attachments. Any personal views or 
opinions expressed by the writer may not necessarily reflect the views or 
opinions of any company in the WorleyParsons Group of Companies. How we use 
your personal data: http://www.advisian.com/en-us/who-we-are/privacy-policy 
/SPAN>

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[Qgis-user] QGIS 3.8 - can't install using qgis.org/ubuntu packages

[Carlos Henrique Grohmann de Carvalho]

Hello all

Since 3.8 is out, I wanted to install it on my Ubuntu 19.04 but I have 3.4
from ubuntugis. In the ubuntugis repos I only found 3.4, but qgis.org has
3.8.

Adding the sources doesn't work because there's no qgis-plugin-grass

any ideas

thanks

-- 
Prof. Carlos Henrique Grohmann
Institute of Energy and Environment - Univ. of São Paulo, Brazil
- Digital Terrain Analysis | GIS | Remote Sensing -

http://carlosgrohmann.com
http://orcid.org/-0001-5073-5572

Can’t stop the signal.
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Re: [Qgis-user] Raster tiles flashing when panning

[matt caswell]

Thanks Saber ill repost this question to the developers mailing list. This 
issue happens on the desktop application also. I will also try and get a later 
branch of qgis and retest.

Thanks,
Matt

Get Outlook for Android


From: Saber Razmjooei 
Sent: Monday, July 1, 2019 1:14:33 PM
To: matt caswell
Cc: qgis-user@lists.osgeo.org
Subject: Re: [Qgis-user] Raster tiles flashing when panning

Hi Matt,

Best to ask the question in QGIS developers mailing list.

By the way, 2.18 is EOLed as off February 2019. So, best to upgrade your 
project to 3.4 branch at least. There will not be any improvement or bug fixing 
to 2.18, unless you fix it on your own QGIS branch.

Regards
Saber


On Mon, 1 Jul 2019 at 11:02, matt caswell 
mailto:matthewcasw...@hotmail.co.uk>> wrote:
Hi All,

I am having some issues with a project I am working on. Recently upgraded qgis 
from 2.4 to 2.18 and the raster tiles I had used previously have became very 
slow to render and flash when panning.

I have turned on multi core rendering and changed the map update interval which 
seems to set partial rendering of the tiles which has improved performance. But 
for new tiles that load they still flash white for a large amount of time.

This is for a qt project written in c++ so hopefully this is the right place to 
ask questions. But if not if someone could point me in the right direction that 
would be awesome. Any help greatly appreciated!

Many thanks,
Matt
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--
Saber Razmjooei
www.lutraconsulting.co.uk
+44 (0)7568 129733
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Re: [Qgis-user] Raster tiles flashing when panning

[Saber Razmjooei]

Hi Matt,

Best to ask the question in QGIS developers mailing list.

By the way, 2.18 is EOLed as off February 2019. So, best to upgrade your
project to 3.4 branch at least. There will not be any improvement or bug
fixing to 2.18, unless you fix it on your own QGIS branch.

Regards
Saber


On Mon, 1 Jul 2019 at 11:02, matt caswell 
wrote:

> Hi All,
>
> I am having some issues with a project I am working on. Recently upgraded
> qgis from 2.4 to 2.18 and the raster tiles I had used previously have
> became very slow to render and flash when panning.
>
> I have turned on multi core rendering and changed the map update interval
> which seems to set partial rendering of the tiles which has improved
> performance. But for new tiles that load they still flash white for a large
> amount of time.
>
> This is for a qt project written in c++ so hopefully this is the right
> place to ask questions. But if not if someone could point me in the right
> direction that would be awesome. Any help greatly appreciated!
>
> Many thanks,
> Matt
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> Qgis-user@lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user



-- 
Saber Razmjooei
www.lutraconsulting.co.uk
+44 (0)7568 129733
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[Qgis-user] Raster tiles flashing when panning

[matt caswell]

Hi All,

I am having some issues with a project I am working on. Recently upgraded qgis 
from 2.4 to 2.18 and the raster tiles I had used previously have became very 
slow to render and flash when panning.

I have turned on multi core rendering and changed the map update interval which 
seems to set partial rendering of the tiles which has improved performance. But 
for new tiles that load they still flash white for a large amount of time.

This is for a qt project written in c++ so hopefully this is the right place to 
ask questions. But if not if someone could point me in the right direction that 
would be awesome. Any help greatly appreciated!

Many thanks,
Matt
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