[Qgis-developer] Re: Problem loading ECW file type in code examples while ECW support is enabled!

2012-02-25 Thread forum account
Hi again,

I could solve my problem. After commenting these three lines ECW file type
loaded successfully, however DEM file type will be shown in gray.

//  myLayer-setDrawingStyle( QgsRasterLayer::SingleBandPseudoColor );
//  myLayer-setColorShadingAlgorithm( QgsRasterLayer::PseudoColorShader );
//
myLayer-setContrastEnhancementAlgorithm(QgsContrastEnhancement::StretchToMinimumMaximum,
false );

hope this help somebody in future.

Cheers,

-Sam

On Wed, Feb 22, 2012 at 7:22 PM, forum account omgforum2...@gmail.comwrote:

 Hi,

 I'm new to QGIS. I was able to compile GDAL 1.8.1 with ecw support on
 ubuntu, then I built QGIS from source and now I'm able to load ECW file
 types.
 To create my own gis application I started looking into code examples
 available at https://svn.osgeo.org/qgis/trunk/code_examples/
 I tried 1_hello_world_qgis_style and it worked fine for SHP file types.
 Then I tried 4_adding_rasters_to_canvas and built it from source in
 QtCreator.
 I'm able to load TIFF and DEM file types but I can't load ECW file types.
 I traced QGIS source code but I couldn't find any special difference
 between QGIS and the example code. Should I add some extra code to the
 example project to enable ECW support?!
 I really appreciate your help in advance.

 PS: I'm sending this email to both user and developer mailing list, so I'm
 sorry if you receive this email more than once.

 -Sam

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Re: [Qgis-developer] OS X 1.7.4... bomb

2012-02-25 Thread Charlie Sharpsteen
On Sat, Feb 25, 2012 at 7:24 AM, William Kyngesburye
wokl...@kyngchaos.comwrote:

 So I finally packaged QGIS 1.7.4 (I was waiting on a GRASS 6.4.2 problem,
 but that may take a while).  And...


Just out of curiosity, what is the problem you are experiencing with GRASS?

-Charlie
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Re: [Qgis-user] [Qgis-developer] OS X 1.7.4... bomb

2012-02-25 Thread William Kyngesburye
GUI digitizer is broken - you can't stop digitizing a line.  Similar problem 
appeared in GRASS 7 but was fixed.

On Feb 25, 2012, at 11:17 AM, Charlie Sharpsteen wrote:

 On Sat, Feb 25, 2012 at 7:24 AM, William Kyngesburye wokl...@kyngchaos.com 
 wrote:
 So I finally packaged QGIS 1.7.4 (I was waiting on a GRASS 6.4.2 problem, but 
 that may take a while).  And...
 
 Just out of curiosity, what is the problem you are experiencing with GRASS?
 
 -Charlie
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Re: [Qgis-developer] OS X 1.7.4... bomb

2012-02-25 Thread Marco Hugentobler

Hi William

Nokia screwed up compiling their official binaries. Everything BUT 
QtWebKit works on OS X 10.6 (Snow Leopard).
QtWebKit appears to use a OS X 10.7-only system function. This breaks 
QGIS help and some plugins on OS X 10.6.
It's possible it's not really Nokia's fault. I'll have to compile Qt 
myself and package a new QGIS, but there is a

bug in Apple's SDK mechanism that could be the problem.

I had the same problem trying to compile Qt 4.8 on OS X 10.5.8. QtWebKit 
does not build (compiler error because of reference to 10.7 function) 
and QGIS needs Webkit.

How did you solve the problem? Disable the help menu?

Regards,
Marco

On 25.02.2012 16:24, William Kyngesburye wrote:

So I finally packaged QGIS 1.7.4 (I was waiting on a GRASS 6.4.2 problem, but 
that may take a while).  And...

WARNING #1: serious Qt packaging bug

Nokia screwed up compiling their official binaries.  Everything BUT QtWebKit 
works on OS X 10.6 (Snow Leopard).  QtWebKit appears to use a OS X 10.7-only system 
function.  This breaks QGIS help and some plugins on OS X 10.6.

It's possible it's not really Nokia's fault.  I'll have to compile Qt myself 
and package a new QGIS, but there is a bug in Apple's SDK mechanism that could 
be the problem.

WARNING #2: delete existing plugins before running QGIS 1.7.4.  If you can do 
it before installing QGIS, disable them in the old QGIS, then update and 
re-enable them one at a time after upgrading QGIS.  If you have already 
installed 1.7.4, you need to manually delete them from ~/.qgis/python/plugins.

I've had a report of plugins directly using a specific GDAL version like 1.8 (I 
don't know how this is possible), which will crash QGIS 1.7.4 which uses GDAL 
1.9.  There also appears to be a problem with PyQwt so the profile plugin will 
crash QGIS.


Sorry for the breakage.  I'll try to fix things as quickly as I can.

-
William Kyngesburyekyngchaos*at*kyngchaos*dot*com
http://www.kyngchaos.com/

First Pogril: Why is life like sticking your head in a bucket filled with hyena 
offal?
Second Pogril: I don't know.  Why IS life like sticking your head in a bucket 
filled with hyena offal?
First Pogril: I don't know either.  Wretched, isn't it?

-HitchHiker's Guide to the Galaxy


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Sourcepole -  Linux  Open Source Solutions
Churerstrasse 22, CH-8808 Pfäffikon SZ, Switzerland
marco.hugentob...@sourcepole.ch http://www.sourcepole.ch
Technical Advisor QGIS Project Steering Committee

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Re: [Qgis-developer] OS X 1.7.4... bomb

2012-02-25 Thread William Kyngesburye
Haven't solved it yet i QGIS compiles and runs, you just can't open any help.  
I'm setting up a spare 10.6 Mac to compile Qt from source so it shouldn't 
reference anything from 10.7.  Odd that you'd get a 10.7 reference compiling on 
10.5, time warp?

On Feb 25, 2012, at 2:25 PM, Marco Hugentobler wrote:

 Hi William
 
 Nokia screwed up compiling their official binaries. Everything BUT 
 QtWebKit works on OS X 10.6 (Snow Leopard).
 QtWebKit appears to use a OS X 10.7-only system function. This breaks QGIS 
 help and some plugins on OS X 10.6.
 It's possible it's not really Nokia's fault. I'll have to compile Qt myself 
 and package a new QGIS, but there is a
 bug in Apple's SDK mechanism that could be the problem.
 
 I had the same problem trying to compile Qt 4.8 on OS X 10.5.8. QtWebKit does 
 not build (compiler error because of reference to 10.7 function) and QGIS 
 needs Webkit.
 How did you solve the problem? Disable the help menu?
 
 Regards,
 Marco
 
 On 25.02.2012 16:24, William Kyngesburye wrote:
 So I finally packaged QGIS 1.7.4 (I was waiting on a GRASS 6.4.2 problem, 
 but that may take a while).  And...
 
 WARNING #1: serious Qt packaging bug
 
 Nokia screwed up compiling their official binaries.  Everything BUT 
 QtWebKit works on OS X 10.6 (Snow Leopard).  QtWebKit appears to use a OS X 
 10.7-only system function.  This breaks QGIS help and some plugins on OS X 
 10.6.
 
 It's possible it's not really Nokia's fault.  I'll have to compile Qt myself 
 and package a new QGIS, but there is a bug in Apple's SDK mechanism that 
 could be the problem.
 
 WARNING #2: delete existing plugins before running QGIS 1.7.4.  If you can 
 do it before installing QGIS, disable them in the old QGIS, then update and 
 re-enable them one at a time after upgrading QGIS.  If you have already 
 installed 1.7.4, you need to manually delete them from 
 ~/.qgis/python/plugins.
 
 I've had a report of plugins directly using a specific GDAL version like 1.8 
 (I don't know how this is possible), which will crash QGIS 1.7.4 which uses 
 GDAL 1.9.  There also appears to be a problem with PyQwt so the profile 
 plugin will crash QGIS.
 
 
 Sorry for the breakage.  I'll try to fix things as quickly as I can.
 
 -
 William Kyngesburyekyngchaos*at*kyngchaos*dot*com
 http://www.kyngchaos.com/
 
 First Pogril: Why is life like sticking your head in a bucket filled with 
 hyena offal?
 Second Pogril: I don't know.  Why IS life like sticking your head in a 
 bucket filled with hyena offal?
 First Pogril: I don't know either.  Wretched, isn't it?
 
 -HitchHiker's Guide to the Galaxy
 
 
 ___
 Qgis-developer mailing list
 Qgis-developer@lists.osgeo.org
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 -- 
 Dr. Marco Hugentobler
 Sourcepole -  Linux  Open Source Solutions
 Churerstrasse 22, CH-8808 Pfäffikon SZ, Switzerland
 marco.hugentob...@sourcepole.ch http://www.sourcepole.ch
 Technical Advisor QGIS Project Steering Committee
 
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all for things that the beasts of the jungle would not deign to possess - money 
to purchase the effeminate pleasures of weaklings.  And yet withal bound down 
by silly customs that make them slaves to their unhappy lot while firm in the 
belief that they be the lords of creation enjoying the only real pleasures of 
existence

- the wisdom of Tarzan


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Re: [Qgis-developer] OS X 1.7.4... bomb

2012-02-25 Thread Larry Shaffer
William,

On Sat, Feb 25, 2012 at 1:49 PM, William Kyngesburye
wokl...@kyngchaos.com wrote:
 Haven't solved it yet i QGIS compiles and runs, you just can't open any help. 
  I'm setting up a spare 10.6 Mac to compile Qt from source so it shouldn't 
 reference anything from 10.7.  Odd that you'd get a 10.7 reference compiling 
 on 10.5, time warp?

I think this might explain why Marco's compiling was referencing 10.7
components:

http://www.qtcentre.org/threads/47183-Symbol-not-found-_kMDItemDownloadedDate-on-Snow-Leopard?p=214418#post214418

The fix noted might also be a way to ensure proper compiling of Qt per
Mac OS version.

Regards,

Larry Shaffer
Dakota Cartography
Black Hills, South Dakota
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Re: [Qgis-developer] OS X 1.7.4... bomb

2012-02-25 Thread William Kyngesburye
Sorry, I meant when compiling Qt on 10.5, that it would be odd to get a 
reference to a future OS version.  I realized right after sending that he meant 
compiling QGIS with the stock Qt.

On Feb 25, 2012, at 2:57 PM, Larry Shaffer wrote:

 William,
 
 On Sat, Feb 25, 2012 at 1:49 PM, William Kyngesburye
 wokl...@kyngchaos.com wrote:
 Haven't solved it yet i QGIS compiles and runs, you just can't open any 
 help.  I'm setting up a spare 10.6 Mac to compile Qt from source so it 
 shouldn't reference anything from 10.7.  Odd that you'd get a 10.7 reference 
 compiling on 10.5, time warp?
 
 I think this might explain why Marco's compiling was referencing 10.7
 components:
 
 http://www.qtcentre.org/threads/47183-Symbol-not-found-_kMDItemDownloadedDate-on-Snow-Leopard?p=214418#post214418
 
 The fix noted might also be a way to ensure proper compiling of Qt per
 Mac OS version.
 
 Regards,
 
 Larry Shaffer
 Dakota Cartography
 Black Hills, South Dakota
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There is a theory which states that if ever anyone discovers exactly what the 
universe is for and why it is here, it will instantly disappear and be replaced 
by something even more bizarrely inexplicable.  There is another theory which 
states that this has already happened.

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