date:20120823

It would be nice to have this bultin to gdalbuildvrt (as an optin of
course) - could the authors make a patch?

Regards,
Etienne

On Thu, Aug 23, 2012 at 7:34 AM, Micha Silver mi...@arava.co.il wrote:
 On 23/08/2012 11:33, Giovanni Manghi wrote:

 http://trac.osgeo.org/gdal/wiki/CatalogueForQIS


 Magic! Many thanks, and also to Andrea Peri for posting the python code.
 In windows I had to run it as:  python computestats.py -approx
 filename.vrt 

 it would be very nice to have this added as tool directly in QGIS...

 cheers


 -- Giovanni --


 On Thu, 2012-08-23 at 11:27 +0300, Micha Silver wrote:

 Hello all:

 I have a batch of over 100 raster tiles in ecw format. Each is 50 -
 100 MB in size. When I choose 20 or so files to load they appear
 (render) very quickly - in a matter of a few seconds or less. If I
 create a vrt of that same batch of tiles, it takes a long time to
 first render - upwards of 15 - 30 seconds.  Once the vrt is loaded
 response is excellent (zooming, etc). But that initial delay is a bit
 annoying. Anything I can do to improve it? (QGIS 1.8, Win 7 64 bit)

 Many thanks,
 Micha

 --
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 052-3665918
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Re: [Qgis-user] Slow rendering of vrt

2012-08-23 Thread Even Rouault

Selon Etienne Tourigny etourigny@gmail.com:

 It would be nice to have this bultin to gdalbuildvrt (as an optin of
 course) - could the authors make a patch?

For a *byte* data type, which must be the common case, why wouldn't QGIS just
use min=0 and max=255 when statistics are not computed ?


 Regards,
 Etienne

 On Thu, Aug 23, 2012 at 7:34 AM, Micha Silver mi...@arava.co.il wrote:
  On 23/08/2012 11:33, Giovanni Manghi wrote:
 
  http://trac.osgeo.org/gdal/wiki/CatalogueForQIS
 
 
  Magic! Many thanks, and also to Andrea Peri for posting the python code.
  In windows I had to run it as:  python computestats.py -approx
  filename.vrt 
 
  it would be very nice to have this added as tool directly in QGIS...
 
  cheers
 
 
  -- Giovanni --
 
 
  On Thu, 2012-08-23 at 11:27 +0300, Micha Silver wrote:
 
  Hello all:
 
  I have a batch of over 100 raster tiles in ecw format. Each is 50 -
  100 MB in size. When I choose 20 or so files to load they appear
  (render) very quickly - in a matter of a few seconds or less. If I
  create a vrt of that same batch of tiles, it takes a long time to
  first render - upwards of 15 - 30 seconds.  Once the vrt is loaded
  response is excellent (zooming, etc). But that initial delay is a bit
  annoying. Anything I can do to improve it? (QGIS 1.8, Win 7 64 bit)
 
  Many thanks,
  Micha
 
  --
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[Qgis-user] Settings for Attribute table in print composer not saved correctly?

2012-08-23 Thread magerlin

I have inserted an attribute table in the print composer and set Maximum
rows to 14 to display all 14 features in my shape file. And it works fine.

But next time I open the project Maximum rows is displaying 13 and I am
missing one of my features in the table?

The problem seems to be related to setting maximum rows equal the number of
features: If I set it to 10, saves and reopens it still says 10.

Perhaps some coding restricting no of rows to be less or equal to number of
features is wrong?



-
Regards Morten

Qgis 1.8.0 Stand alone installer in Win7 64 bit
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Re: [Qgis-user] Slow rendering of vrt

On Thu, Aug 23, 2012 at 11:00 AM, Even Rouault
even.roua...@mines-paris.org wrote:
 Selon Etienne Tourigny etourigny@gmail.com:

 It would be nice to have this bultin to gdalbuildvrt (as an optin of
 course) - could the authors make a patch?

 For a *byte* data type, which must be the common case, why wouldn't QGIS just
 use min=0 and max=255 when statistics are not computed ?

good question.

Unless I am mistaken, min/max are set to 0/255 by default, unless
QgsRasterDataProvider::bandStatistics() or
QgsRasterLayer::bandStatistics()  is called - which is probably what
happens.

I don't understand what is the problem, does the VRT load slowly
initially, or is getting statistics rather slow?

On the other hand, wouldn't a simple gdalinfo -stats file.vrt
achieve the same as the linked python script, but easier to run?

Etienne



 Regards,
 Etienne

 On Thu, Aug 23, 2012 at 7:34 AM, Micha Silver mi...@arava.co.il wrote:
  On 23/08/2012 11:33, Giovanni Manghi wrote:
 
  http://trac.osgeo.org/gdal/wiki/CatalogueForQIS
 
 
  Magic! Many thanks, and also to Andrea Peri for posting the python code.
  In windows I had to run it as:  python computestats.py -approx
  filename.vrt 
 
  it would be very nice to have this added as tool directly in QGIS...
 
  cheers
 
 
  -- Giovanni --
 
 
  On Thu, 2012-08-23 at 11:27 +0300, Micha Silver wrote:
 
  Hello all:
 
  I have a batch of over 100 raster tiles in ecw format. Each is 50 -
  100 MB in size. When I choose 20 or so files to load they appear
  (render) very quickly - in a matter of a few seconds or less. If I
  create a vrt of that same batch of tiles, it takes a long time to
  first render - upwards of 15 - 30 seconds.  Once the vrt is loaded
  response is excellent (zooming, etc). But that initial delay is a bit
  annoying. Anything I can do to improve it? (QGIS 1.8, Win 7 64 bit)
 
  Many thanks,
  Micha
 
  --
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  052-3665918
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  --
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Re: [Qgis-user] After Qgis installation - GRASS6.4 doesn't start anymore

You should probably not be installing grass in /usr, this cause
conflicts with packages installed though the package manager.

Why are you building grass anyway? The packaged version should run fine.

I recommend you use the ubuntugis-unstable ppa to install qgis,
grass and qgis-grass.

BTW the correct way to uninstall is sudo apt-get remove qgis -
autoremove deletes unnecessary packages

Etienne

On Thu, Aug 23, 2012 at 8:16 AM, Johannes Radinger
johannesradin...@gmail.com wrote:
 Hi,

 I successfully compiled and installed GRASS6.4 with make -j2  sudo
 checkinstall  sudo ldconfig
 which is usually working perfectly.

 But after installing QGIS I can't start GRASS6.4 itself anymore.
 I try to launch it from the Terminal like:

 x@y:~$ grass64
 Cleaning up temporary files ...
 Starting GRASS ...
 python: can't open file '/usr/lib/grass64/etc/wxpython/gis_set.py':
 [Errno 2] No such file or directory
 Received EXIT message from GUI.
 GRASS is not started. Bye.

 it seems that the QGIS installation somehow overwrites some
 settings/files that are needed for starting
 a pure GRASS session (with GUI).

 I am working on Ubuntu 12.04 and QGIS 1.8 is installed via the
 instructions from qgis.org:
 following lines were added to /etc/apt/sources.list:
 deb http://qgis.org/debian precise main
 deb-src http://qgis.org/debian precise main

 the installation itself was done with:
 sudo apt-get update
 sudo apt-get install qgis

 After uninstalling qgis with sudo apt-get autoremove qgis grass64
 can be started again without
 any problems.

 Maybe this is a known issue, but are there any solutions?


 /johannes
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Re: [Qgis-user] Slow rendering of vrt

2012-08-23 Thread Paolo Cavallini

Il 23/08/2012 10:33, Giovanni Manghi ha scritto:
 http://trac.osgeo.org/gdal/wiki/CatalogueForQIS

 it would be very nice to have this added as tool directly in QGIS...

not a big job, sponsors are welcome

-- 
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www.faunalia.eu
Full contact details at www.faunalia.eu/pc
Nuovi corsi QGIS e PostGIS: http://www.faunalia.it/calendario

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Re: [Qgis-user] Slow rendering of vrt

2012-08-23 Thread Radim Blazek

On Thu, Aug 23, 2012 at 5:57 PM, Etienne Tourigny
etourigny@gmail.com wrote:
 On Thu, Aug 23, 2012 at 11:00 AM, Even Rouault
 even.roua...@mines-paris.org wrote:
 It would be nice to have this bultin to gdalbuildvrt (as an optin of
 course) - could the authors make a patch?

 For a *byte* data type, which must be the common case, why wouldn't QGIS just
 use min=0 and max=255 when statistics are not computed ?

 good question.

 Unless I am mistaken, min/max are set to 0/255 by default, unless
 QgsRasterDataProvider::bandStatistics() or
 QgsRasterLayer::bandStatistics()  is called - which is probably what
 happens.

Default contrast enhancement in current master (may be changed in
Options  Rendering  Rasters):
  Single band gray: Stretch to min / max
  Multiband color (byte/band): No stretch
  Multiband color (byte/band): Stretch to min / max
  Limits (min/max): Cumulative count cut.

The min/max are calculated using 25 pixels sample, which should be
fast. It would be useful to test the VRT without stats collected with
current master.

It would be possible to add another default contrast enhancement for
Single band gray byte, but I believe that if the whole raster can be
rendered in reasonable time, the min/max calculation must be also fast
and contrast enhancement may be important even with byte data.

Radim

 I don't understand what is the problem, does the VRT load slowly
 initially, or is getting statistics rather slow?

 On the other hand, wouldn't a simple gdalinfo -stats file.vrt
 achieve the same as the linked python script, but easier to run?

 Etienne



 Regards,
 Etienne

 On Thu, Aug 23, 2012 at 7:34 AM, Micha Silver mi...@arava.co.il wrote:
  On 23/08/2012 11:33, Giovanni Manghi wrote:
 
  http://trac.osgeo.org/gdal/wiki/CatalogueForQIS
 
 
  Magic! Many thanks, and also to Andrea Peri for posting the python code.
  In windows I had to run it as:  python computestats.py -approx
  filename.vrt 
 
  it would be very nice to have this added as tool directly in QGIS...
 
  cheers
 
 
  -- Giovanni --
 
 
  On Thu, 2012-08-23 at 11:27 +0300, Micha Silver wrote:
 
  Hello all:
 
  I have a batch of over 100 raster tiles in ecw format. Each is 50 -
  100 MB in size. When I choose 20 or so files to load they appear
  (render) very quickly - in a matter of a few seconds or less. If I
  create a vrt of that same batch of tiles, it takes a long time to
  first render - upwards of 15 - 30 seconds.  Once the vrt is loaded
  response is excellent (zooming, etc). But that initial delay is a bit
  annoying. Anything I can do to improve it? (QGIS 1.8, Win 7 64 bit)
 
  Many thanks,
  Micha
 
  --
  Micha Silver
  052-3665918
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  http://lists.osgeo.org/mailman/listinfo/qgis-user
 
 
 
  This mail was received via Mail-SeCure System.
 
 
 
 
  --
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  052-3665918
 
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Re: [Qgis-user] Slow rendering of vrt

Author was experiencing this in 1.8, it would be nice if someone
(ideally the author) could test the same with nightly master (1.9).

Etienne

On Thu, Aug 23, 2012 at 2:27 PM, Radim Blazek radim.bla...@gmail.com wrote:
 On Thu, Aug 23, 2012 at 5:57 PM, Etienne Tourigny
 etourigny@gmail.com wrote:
 On Thu, Aug 23, 2012 at 11:00 AM, Even Rouault
 even.roua...@mines-paris.org wrote:
 It would be nice to have this bultin to gdalbuildvrt (as an optin of
 course) - could the authors make a patch?

 For a *byte* data type, which must be the common case, why wouldn't QGIS 
 just
 use min=0 and max=255 when statistics are not computed ?

 good question.

 Unless I am mistaken, min/max are set to 0/255 by default, unless
 QgsRasterDataProvider::bandStatistics() or
 QgsRasterLayer::bandStatistics()  is called - which is probably what
 happens.

 Default contrast enhancement in current master (may be changed in
 Options  Rendering  Rasters):
   Single band gray: Stretch to min / max
   Multiband color (byte/band): No stretch
   Multiband color (byte/band): Stretch to min / max
   Limits (min/max): Cumulative count cut.

 The min/max are calculated using 25 pixels sample, which should be
 fast. It would be useful to test the VRT without stats collected with
 current master.

 It would be possible to add another default contrast enhancement for
 Single band gray byte, but I believe that if the whole raster can be
 rendered in reasonable time, the min/max calculation must be also fast
 and contrast enhancement may be important even with byte data.

 Radim

 I don't understand what is the problem, does the VRT load slowly
 initially, or is getting statistics rather slow?

 On the other hand, wouldn't a simple gdalinfo -stats file.vrt
 achieve the same as the linked python script, but easier to run?

 Etienne



 Regards,
 Etienne

 On Thu, Aug 23, 2012 at 7:34 AM, Micha Silver mi...@arava.co.il wrote:
  On 23/08/2012 11:33, Giovanni Manghi wrote:
 
  http://trac.osgeo.org/gdal/wiki/CatalogueForQIS
 
 
  Magic! Many thanks, and also to Andrea Peri for posting the python code.
  In windows I had to run it as:  python computestats.py -approx
  filename.vrt 
 
  it would be very nice to have this added as tool directly in QGIS...
 
  cheers
 
 
  -- Giovanni --
 
 
  On Thu, 2012-08-23 at 11:27 +0300, Micha Silver wrote:
 
  Hello all:
 
  I have a batch of over 100 raster tiles in ecw format. Each is 50 -
  100 MB in size. When I choose 20 or so files to load they appear
  (render) very quickly - in a matter of a few seconds or less. If I
  create a vrt of that same batch of tiles, it takes a long time to
  first render - upwards of 15 - 30 seconds.  Once the vrt is loaded
  response is excellent (zooming, etc). But that initial delay is a bit
  annoying. Anything I can do to improve it? (QGIS 1.8, Win 7 64 bit)
 
  Many thanks,
  Micha
 
  --
  Micha Silver
  052-3665918
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  http://lists.osgeo.org/mailman/listinfo/qgis-user
 
 
 
  This mail was received via Mail-SeCure System.
 
 
 
 
  --
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  052-3665918
 
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Re: [Qgis-user] loading Web Map Tile Service in QGIS

2012-08-23 Thread Germán Carrillo

... and WPS.

2012/8/23 Yves Jacolin (free) yjaco...@free.fr

 Hello,

 I am not sure that QGIS support TMS service. Only WFS, WMS, WMS-C and WMTS
 services.

 Regards,

 Y.
 Le 23/08/2012 12:47, maning sambale a écrit :

  Hi,

 I'm trying to load MODIS Web Map Tile Service [0] in QGIS.  Using the
 TWMS version 1.1.1 spec, it can read the capabilities request via the
 Add WMS Layer dialog.  But I can't get any layer loaded, I get this
 error:

 Response: ?xml version='1.0' encoding=UTF-8 standalone=no ?
 !DOCTYPE ServiceExceptionReport SYSTEM
 http://wms.jpl.nasa.gov/**exception_1_1_1.dtdhttp://wms.jpl.nasa.gov/exception_1_1_1.dtd
 ServiceExceptionReport version=1.1.1
ServiceException
  Cannot read data files
/ServiceException
 /ServiceExceptionReport



 [0] http://earthdata.nasa.gov/**wiki/main/index.php/Global_**
 Imagery_Browse_Serviceshttp://earthdata.nasa.gov/wiki/main/index.php/Global_Imagery_Browse_Services
 [1] http://earthdata.nasa.gov/**wiki/main/index.php/GIBS_**
 Access_Methods#Service_**Endpointshttp://earthdata.nasa.gov/wiki/main/index.php/GIBS_Access_Methods#Service_Endpoints



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Re: [Qgis-user] Slow rendering of vrt

2012-08-23 Thread Giuseppe Sucameli

Hi Etienne,

On Aug 23, 2012, at 5:57 PM, Etienne Tourigny etourigny@gmail.com wrote:
 On the other hand, wouldn't a simple gdalinfo -stats file.vrt
 achieve the same as the linked python script, but easier to run?
the python script calculates approximated stats, so
it works like gdalinfo -approx_stats file.vrt

The problem was the -approx_stats option is not present
in the documentation (either help online or using --help),
then I wrote that few-lines script to achieve the task.

Only now I'm looking at the gdalinfo.c code on the repo
I know it's there since Jan 2007 (r10658)...

BTW a ticket is needed to update the doc.

On Thu, Aug 23, 2012 at 7:39 PM, Etienne Tourigny
etourigny@gmail.com wrote:
 it would be nice if someone (ideally the author) could test
 the same with nightly master (1.9).

+1, but I hope you're talking about the wiki page author :)
I cannot do any test because I have no VRT files so big.

Micha, could you try with QGis master and report here,
please?

Regards.


 Etienne

 On Thu, Aug 23, 2012 at 2:27 PM, Radim Blazek radim.bla...@gmail.com wrote:
 On Thu, Aug 23, 2012 at 5:57 PM, Etienne Tourigny
 etourigny@gmail.com wrote:
 On Thu, Aug 23, 2012 at 11:00 AM, Even Rouault
 even.roua...@mines-paris.org wrote:
 It would be nice to have this bultin to gdalbuildvrt (as an optin of
 course) - could the authors make a patch?

 For a *byte* data type, which must be the common case, why wouldn't QGIS 
 just
 use min=0 and max=255 when statistics are not computed ?

 good question.

 Unless I am mistaken, min/max are set to 0/255 by default, unless
 QgsRasterDataProvider::bandStatistics() or
 QgsRasterLayer::bandStatistics()  is called - which is probably what
 happens.

 Default contrast enhancement in current master (may be changed in
 Options  Rendering  Rasters):
   Single band gray: Stretch to min / max
   Multiband color (byte/band): No stretch
   Multiband color (byte/band): Stretch to min / max
   Limits (min/max): Cumulative count cut.

 The min/max are calculated using 25 pixels sample, which should be
 fast. It would be useful to test the VRT without stats collected with
 current master.

 It would be possible to add another default contrast enhancement for
 Single band gray byte, but I believe that if the whole raster can be
 rendered in reasonable time, the min/max calculation must be also fast
 and contrast enhancement may be important even with byte data.

 Radim

 I don't understand what is the problem, does the VRT load slowly
 initially, or is getting statistics rather slow?

 On the other hand, wouldn't a simple gdalinfo -stats file.vrt
 achieve the same as the linked python script, but easier to run?

 Etienne



 Regards,
 Etienne

 On Thu, Aug 23, 2012 at 7:34 AM, Micha Silver mi...@arava.co.il wrote:
  On 23/08/2012 11:33, Giovanni Manghi wrote:
 
  http://trac.osgeo.org/gdal/wiki/CatalogueForQIS
 
 
  Magic! Many thanks, and also to Andrea Peri for posting the python code.
  In windows I had to run it as:  python computestats.py -approx
  filename.vrt 
 
  it would be very nice to have this added as tool directly in QGIS...
 
  cheers
 
 
  -- Giovanni --
 
 
  On Thu, 2012-08-23 at 11:27 +0300, Micha Silver wrote:
 
  Hello all:
 
  I have a batch of over 100 raster tiles in ecw format. Each is 50 -
  100 MB in size. When I choose 20 or so files to load they appear
  (render) very quickly - in a matter of a few seconds or less. If I
  create a vrt of that same batch of tiles, it takes a long time to
  first render - upwards of 15 - 30 seconds.  Once the vrt is loaded
  response is excellent (zooming, etc). But that initial delay is a bit
  annoying. Anything I can do to improve it? (QGIS 1.8, Win 7 64 bit)
 
  Many thanks,
  Micha
 
  --
  Micha Silver
  052-3665918
  ___
  Qgis-user mailing list
  Qgis-user@lists.osgeo.org
  http://lists.osgeo.org/mailman/listinfo/qgis-user
 
 
 
  This mail was received via Mail-SeCure System.
 
 
 
 
  --
  Micha Silver
  052-3665918
 
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-- 
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Re: [Qgis-user] loading Web Map Tile Service in QGIS

have you tried gdal tms support? The following VRT file can load
openstreemap tms

http://www.3liz.com/blog/rldhont/index.php?post/2012/07/17/OpenStreetMap-Tiles-in-QGIS

Etienne

On Thu, Aug 23, 2012 at 7:47 AM, maning sambale
emmanuel.samb...@gmail.com wrote:
 Hi,

 I'm trying to load MODIS Web Map Tile Service [0] in QGIS.  Using the
 TWMS version 1.1.1 spec, it can read the capabilities request via the
 Add WMS Layer dialog.  But I can't get any layer loaded, I get this
 error:

 Response: ?xml version='1.0' encoding=UTF-8 standalone=no ?
 !DOCTYPE ServiceExceptionReport SYSTEM
 http://wms.jpl.nasa.gov/exception_1_1_1.dtd 
 ServiceExceptionReport version=1.1.1
   ServiceException
 Cannot read data files
   /ServiceException
 /ServiceExceptionReport



 [0] 
 http://earthdata.nasa.gov/wiki/main/index.php/Global_Imagery_Browse_Services
 [1] 
 http://earthdata.nasa.gov/wiki/main/index.php/GIBS_Access_Methods#Service_Endpoints
 --
 cheers,
 maning
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Re: [Qgis-user] loading Web Map Tile Service in QGIS

2012-08-23 Thread Alexander Bruy

Works fine here in QGIS master using this link

http://map1.vis.earthdata.nasa.gov/wmts-geo/wmts.cgi?SERVICE=WMTSrequest=GetCapabilities


2012/8/23 maning sambale emmanuel.samb...@gmail.com:
 Hi,

 I'm trying to load MODIS Web Map Tile Service [0] in QGIS.  Using the
 TWMS version 1.1.1 spec, it can read the capabilities request via the
 Add WMS Layer dialog.  But I can't get any layer loaded, I get this
 error:

 Response: ?xml version='1.0' encoding=UTF-8 standalone=no ?
 !DOCTYPE ServiceExceptionReport SYSTEM
 http://wms.jpl.nasa.gov/exception_1_1_1.dtd 
 ServiceExceptionReport version=1.1.1
   ServiceException
 Cannot read data files
   /ServiceException
 /ServiceExceptionReport



 [0] 
 http://earthdata.nasa.gov/wiki/main/index.php/Global_Imagery_Browse_Services
 [1] 
 http://earthdata.nasa.gov/wiki/main/index.php/GIBS_Access_Methods#Service_Endpoints
 --
 cheers,
 maning

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Re: [Qgis-user] Slow rendering of vrt

On Thu, Aug 23, 2012 at 3:31 PM, Giuseppe Sucameli sucam...@faunalia.it wrote:
 Hi Etienne,

 On Aug 23, 2012, at 5:57 PM, Etienne Tourigny etourigny@gmail.com wrote:
 On the other hand, wouldn't a simple gdalinfo -stats file.vrt
 achieve the same as the linked python script, but easier to run?
 the python script calculates approximated stats, so
 it works like gdalinfo -approx_stats file.vrt

 The problem was the -approx_stats option is not present
 in the documentation (either help online or using --help),
 then I wrote that few-lines script to achieve the task.

I'll try to update that soon.


 Only now I'm looking at the gdalinfo.c code on the repo
 I know it's there since Jan 2007 (r10658)...

 BTW a ticket is needed to update the doc.

 On Thu, Aug 23, 2012 at 7:39 PM, Etienne Tourigny
 etourigny@gmail.com wrote:
 it would be nice if someone (ideally the author) could test
 the same with nightly master (1.9).

 +1, but I hope you're talking about the wiki page author :)
 I cannot do any test because I have no VRT files so big.

sorry I meant the post author (Micha)


 Micha, could you try with QGis master and report here,
 please?

 Regards.


 Etienne

 On Thu, Aug 23, 2012 at 2:27 PM, Radim Blazek radim.bla...@gmail.com wrote:
 On Thu, Aug 23, 2012 at 5:57 PM, Etienne Tourigny
 etourigny@gmail.com wrote:
 On Thu, Aug 23, 2012 at 11:00 AM, Even Rouault
 even.roua...@mines-paris.org wrote:
 It would be nice to have this bultin to gdalbuildvrt (as an optin of
 course) - could the authors make a patch?

 For a *byte* data type, which must be the common case, why wouldn't QGIS 
 just
 use min=0 and max=255 when statistics are not computed ?

 good question.

 Unless I am mistaken, min/max are set to 0/255 by default, unless
 QgsRasterDataProvider::bandStatistics() or
 QgsRasterLayer::bandStatistics()  is called - which is probably what
 happens.

 Default contrast enhancement in current master (may be changed in
 Options  Rendering  Rasters):
   Single band gray: Stretch to min / max
   Multiband color (byte/band): No stretch
   Multiband color (byte/band): Stretch to min / max
   Limits (min/max): Cumulative count cut.

 The min/max are calculated using 25 pixels sample, which should be
 fast. It would be useful to test the VRT without stats collected with
 current master.

 It would be possible to add another default contrast enhancement for
 Single band gray byte, but I believe that if the whole raster can be
 rendered in reasonable time, the min/max calculation must be also fast
 and contrast enhancement may be important even with byte data.

 Radim

 I don't understand what is the problem, does the VRT load slowly
 initially, or is getting statistics rather slow?

 On the other hand, wouldn't a simple gdalinfo -stats file.vrt
 achieve the same as the linked python script, but easier to run?

 Etienne



 Regards,
 Etienne

 On Thu, Aug 23, 2012 at 7:34 AM, Micha Silver mi...@arava.co.il wrote:
  On 23/08/2012 11:33, Giovanni Manghi wrote:
 
  http://trac.osgeo.org/gdal/wiki/CatalogueForQIS
 
 
  Magic! Many thanks, and also to Andrea Peri for posting the python 
  code.
  In windows I had to run it as:  python computestats.py -approx
  filename.vrt 
 
  it would be very nice to have this added as tool directly in QGIS...
 
  cheers
 
 
  -- Giovanni --
 
 
  On Thu, 2012-08-23 at 11:27 +0300, Micha Silver wrote:
 
  Hello all:
 
  I have a batch of over 100 raster tiles in ecw format. Each is 50 -
  100 MB in size. When I choose 20 or so files to load they appear
  (render) very quickly - in a matter of a few seconds or less. If I
  create a vrt of that same batch of tiles, it takes a long time to
  first render - upwards of 15 - 30 seconds.  Once the vrt is loaded
  response is excellent (zooming, etc). But that initial delay is a bit
  annoying. Anything I can do to improve it? (QGIS 1.8, Win 7 64 bit)
 
  Many thanks,
  Micha
 
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  This mail was received via Mail-SeCure System.
 
 
 
 
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Re: [Qgis-user] loading Web Map Tile Service in QGIS

2012-08-23 Thread Alexander Bruy

Ops, sorry. Layer added but it is blank

2012/8/23 Alexander Bruy alexander.b...@gmail.com:
 Works fine here in QGIS master using this link

 http://map1.vis.earthdata.nasa.gov/wmts-geo/wmts.cgi?SERVICE=WMTSrequest=GetCapabilities

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Re: [Qgis-user] [GRASS-user] After Qgis installation - GRASS6.4 doesn't start anymore

2012-08-23 Thread Markus Neteler

On Thu, Aug 23, 2012 at 1:16 PM, Johannes Radinger
johannesradin...@gmail.com wrote:
 Hi,

 I successfully compiled and installed GRASS6.4 with make -j2  sudo
 checkinstall  sudo ldconfig
 which is usually working perfectly.

 But after installing QGIS I can't start GRASS6.4 itself anymore.
 I try to launch it from the Terminal like:

 x@y:~$ grass64
 Cleaning up temporary files ...
 Starting GRASS ...
 python: can't open file '/usr/lib/grass64/etc/wxpython/gis_set.py':
 [Errno 2] No such file or directory
 Received EXIT message from GUI.
 GRASS is not started. Bye.

 it seems that the QGIS installation somehow overwrites some
 settings/files that are needed for starting
 a pure GRASS session (with GUI).

Please check how many files remained in /usr/lib/grass64/.
Perhaps QGIS removed it to install again GRASS (which failed)?

What if you reinstall again GRASS6.4 with your
make -j2  sudo checkinstall  sudo ldconfig
?

guessing,
Markus
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[Qgis-user] duplicate layout

i have to edit different layout having more or less same contents. they
differ themselves just only for two layers.
all the icons, noxes etc are the same.
is it a way to duplicate a layout and change just ony few things i need?




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Re: [Qgis-user] qgis fonts

thank you for your reply.
so if i have wel understood it is a virtual font that can be changed by
sans serif, isn't it?



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Re: [Qgis-user] duplicate layout

use a QStackedWidget with appropriate controls/logic to swap widgets,
or a QTabbedWidget

BTW this is a message more suited for the developper's list.

Etienne

On Thu, Aug 23, 2012 at 5:19 PM, skampus
stefano.cam...@regione.piemonte.it wrote:
 i have to edit different layout having more or less same contents. they
 differ themselves just only for two layers.
 all the icons, noxes etc are the same.
 is it a way to duplicate a layout and change just ony few things i need?




 --
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[Qgis-user] Qgis manual in spanish or portuguese?

2012-08-23 Thread Pablo Schweitzer

I'm new in Qgis (I used mapinfo and gvsig), there are same manuals or
tutorial in spanish or portuguese?
Sorry for my english
Thanks
Pablo
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Re: [Qgis-user] duplicate layout

i think so... :-)

thank you, anyway



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Re: [Qgis-user] Qgis manual in spanish or portuguese?

yes, but not for last version
see: http://www.qgis.org/en/documentation/manuals.html



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Re: [Qgis-user] loading Web Map Tile Service in QGIS

Specifically, save the xml file from Option 1) at:
http://earthdata.nasa.gov/wiki/main/index.php/GIBS_Supported_Clients#Script-level_access_to_imagery
Drag-and-drop it into QGIS and it will display fine.

Of course, see the note at the bottom of the page:
Requirements
GDAL version 1.9.1 or greater with cURL support enabled


 Date: Thu, 23 Aug 2012 15:33:42 -0300
 From: Etienne Tourigny etourigny@gmail.com
 To: maning sambale emmanuel.samb...@gmail.com
 Cc: qgis-user qgis-user@lists.osgeo.org
 Subject: Re: [Qgis-user] loading Web Map Tile Service in QGIS
 Message-ID:
   CA+TxYvOZzDX=zm975i_PcUB0zsEa-rCtu5s6rR-J=byw+nb...@mail.gmail.com
 Content-Type: text/plain; charset=ISO-8859-1
 
 have you tried gdal tms support? The following VRT file can load
 openstreemap tms
 
 http://www.3liz.com/blog/rldhont/index.php?post/2012/07/17/OpenStreetMap-
 Tiles-in-QGIS
 
 Etienne
 
 On Thu, Aug 23, 2012 at 7:47 AM, maning sambale
 emmanuel.samb...@gmail.com wrote:
  Hi,
 
  I'm trying to load MODIS Web Map Tile Service [0] in QGIS.  Using the
  TWMS version 1.1.1 spec, it can read the capabilities request via the
  Add WMS Layer dialog.  But I can't get any layer loaded, I get this
  error:
 
  Response: ?xml version='1.0' encoding=UTF-8 standalone=no ?
  !DOCTYPE ServiceExceptionReport SYSTEM
  http://wms.jpl.nasa.gov/exception_1_1_1.dtd 
  ServiceExceptionReport version=1.1.1
ServiceException
  Cannot read data files
/ServiceException
  /ServiceExceptionReport
 
 
 
  [0]
 http://earthdata.nasa.gov/wiki/main/index.php/Global_Imagery_Browse_Servic
 es
  [1]
 http://earthdata.nasa.gov/wiki/main/index.php/GIBS_Access_Methods#Service_
 Endpoints
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[Qgis-user] Howto: load ArcGIS mapserver raster layers

Hi everyone,
I don't think anyone around here has ever explained how to add raster ArcGIS
mapserver layers from servers which provide a REST interface. As far as I
know, there is no way to just load them with a url directly from the QGIS gui,
but they can be handled by the GDAL WMS driver, and thus can be loaded in QGIS.

Firstly (and the most difficult part) you need to find the URL for the REST
service for your layer. E.g. you might want to use a layer that is available
in the ESRI Maps for Personal Use web map at:
http://www.arcgis.com/home/webmap/viewer.html?useExisting=1
Hopefully with a little googling you will be able to find the address where you
can browse the ArcGIS services directory of your favourite ArcGIS server. In
this case it is: http://server.arcgisonline.com/ArcGIS/rest/services/

Find the layer that you are after, and now you have two options:

1. You can create a GDAL service description XML file, and open it with QGIS.
E.g. try this file:
http://www.gdal.org/frmt_wms_arcgis_mapserver_tms.xml
Or e.g. save the XML code pasted at http://trac.osgeo.org/mapserver/ticket/3804
and try it.

2. You can create a .vrt file (which requires less thinking), and open that
with QGIS.
E.g. find the raster layer you want in the ArcGIS services directory, and get
the URL for its REST interface, which should be at the bottom of the page,
under Supported Interfaces. The gdal utilities can just use this URL (since
GDAL 1.9), so you can simply create a .vrt like this:
gdalbuildvrt test.vrt
http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer?f=jsonpretty=true;

Of course, you will need to check the restrictions on what you are legally
allowed to do with any particular layer.

And if you are wondering: as far as I know there is currently no way to load
_vector_ ArcGIS mapserver layers, or ArcGIS globeserver or featureserver
layers (except for manually writing a query URL. i.e. you can't use their REST
services).

Regards,
Alister

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Re: [Qgis-user] Howto: load ArcGIS mapserver raster layers

2012-08-23 Thread pcreso

Hi Alistair,

Listed at http://www.niwa.co.nz/ei/feeds/report there are a few Arc Server 
raster layers, they are ESRI Mapserver restful layers, but deliver OGC WMS.

Such layers are as available as any other WMS data source, eg: 
http://boi.arc.niwa.co.nz/arcgis/services/climate/MedianAnnualTotalRainfall/MapServer/WMSServer

I figure what you are describing is a way to access the ESRI native (as opposed 
to OGC compliant) services in QGIS using GDAL?


Cheers,

   Brent Wood

--- On Fri, 8/24/12, Alister Hood alister.h...@synergine.com wrote:

From: Alister Hood alister.h...@synergine.com
Subject: [Qgis-user] Howto: load ArcGIS mapserver raster layers
To: qgis-user@lists.osgeo.org qgis-user@lists.osgeo.org
Date: Friday, August 24, 2012, 12:43 PM

Hi everyone,
I don't think anyone around here has ever explained how to add raster ArcGIS 
mapserver layers from servers which provide a REST interface.  As far as I 
know, there is no way to just load them with a url directly from the QGIS gui, 
but they can be handled by the GDAL WMS driver, and thus can be loaded in QGIS.
 
Firstly (and the most difficult part) you need to find the URL for the REST 
service for your layer.  E.g. you might want to use a layer that is available 
in the ESRI Maps for Personal Use web map at:
http://www.arcgis.com/home/webmap/viewer.html?useExisting=1
Hopefully with a little googling you will be able to find the address where you 
can browse the ArcGIS services directory of your favourite ArcGIS server.  In 
this case it is: http://server.arcgisonline.com/ArcGIS/rest/services/

Find the layer that you are after, and now you have two options:

1. You can create a GDAL service description XML file, and open it with QGIS.
E.g. try this file:
http://www.gdal.org/frmt_wms_arcgis_mapserver_tms.xml
Or e.g. save the XML code pasted at http://trac.osgeo.org/mapserver/ticket/3804 
and try it.

2. You can create a .vrt file (which requires less thinking), and open that 
with QGIS.
E.g. find the raster layer you want in the ArcGIS services directory, and get 
the URL for its REST interface, which should be at the bottom of the page, 
under Supported Interfaces.  The gdal utilities can just use this URL (since 
GDAL 1.9), so you can simply create a .vrt like this:
gdalbuildvrt test.vrt 
http://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer?f=jsonpretty=true;

Of course, you will need to check the restrictions on what you are legally 
allowed to do with any particular layer.  

And if you are wondering: as far as I know there is currently no way to load 
_vector_ ArcGIS mapserver layers, or ArcGIS globeserver or featureserver 
layers (except for manually writing a query URL.  i.e. you can't use their REST 
services).

Regards,
Alister


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Re: [Qgis-user] loading Web Map Tile Service in QGIS

2012-08-23 Thread maning sambale

Thanks for all the reply. Alister's solution works.

On Fri, Aug 24, 2012 at 8:15 AM, Alister Hood
alister.h...@synergine.com wrote:
 Specifically, save the xml file from Option 1) at:
 http://earthdata.nasa.gov/wiki/main/index.php/GIBS_Supported_Clients#Script-level_access_to_imagery
 Drag-and-drop it into QGIS and it will display fine.

 Of course, see the note at the bottom of the page:
 Requirements
 GDAL version 1.9.1 or greater with cURL support enabled


 Date: Thu, 23 Aug 2012 15:33:42 -0300
 From: Etienne Tourigny etourigny@gmail.com
 To: maning sambale emmanuel.samb...@gmail.com
 Cc: qgis-user qgis-user@lists.osgeo.org
 Subject: Re: [Qgis-user] loading Web Map Tile Service in QGIS
 Message-ID:
   CA+TxYvOZzDX=zm975i_PcUB0zsEa-rCtu5s6rR-J=byw+nb...@mail.gmail.com
 Content-Type: text/plain; charset=ISO-8859-1

 have you tried gdal tms support? The following VRT file can load
 openstreemap tms

 http://www.3liz.com/blog/rldhont/index.php?post/2012/07/17/OpenStreetMap-
 Tiles-in-QGIS

 Etienne

 On Thu, Aug 23, 2012 at 7:47 AM, maning sambale
 emmanuel.samb...@gmail.com wrote:
  Hi,
 
  I'm trying to load MODIS Web Map Tile Service [0] in QGIS.  Using the
  TWMS version 1.1.1 spec, it can read the capabilities request via the
  Add WMS Layer dialog.  But I can't get any layer loaded, I get this
  error:
 
  Response: ?xml version='1.0' encoding=UTF-8 standalone=no ?
  !DOCTYPE ServiceExceptionReport SYSTEM
  http://wms.jpl.nasa.gov/exception_1_1_1.dtd 
  ServiceExceptionReport version=1.1.1
ServiceException
  Cannot read data files
/ServiceException
  /ServiceExceptionReport
 
 
 
  [0]
 http://earthdata.nasa.gov/wiki/main/index.php/Global_Imagery_Browse_Servic
 es
  [1]
 http://earthdata.nasa.gov/wiki/main/index.php/GIBS_Access_Methods#Service_
 Endpoints



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[Qgis-user] duplicate layout

 Date: Thu, 23 Aug 2012 13:19:56 -0700 (PDT)
 From: skampus stefano.cam...@regione.piemonte.it
 To: qgis-user@lists.osgeo.org
 Subject: [Qgis-user] duplicate layout
 Message-ID: 1345753180491-4997448.p...@n6.nabble.com
 Content-Type: text/plain; charset=us-ascii

 i have to edit different layout having more or less same contents. they
 differ themselves just only for two layers.
 all the icons, noxes etc are the same.
 is it a way to duplicate a layout and change just ony few things i need?

(In the composer)
File-Save as template
File-Load from template
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Re: [Qgis-user] Howto: load ArcGIS mapserver raster layers