[Qgis-user] GDAL-tools plugin 1.0 fails

[Radu Iovita]

Hello,

I am a complete beginner with QGis and GDAL, but I've used ESRI products
before, and I'm familiar with basic GIS concepts. I'm running QGis 1.4
(Enceladus) on OS X 10.6.2 (Snow Leopard). I've installed QGis from
Kyngchaos.com originally with GDAL 1.6 framework, but today I installed the
GDAL 1.7 framework as well. GRASS and its frameworks are also installed, but
I haven't used it yet. I've installed the GDAL-tools plugin via the Python
plugin fetcher today. I'm interested in merging a few (6) geo-tiffs from the
ASTER-Global DEM data and to make a hillshade as well as a slope analysis in
view of evaluating some places to do archaeological survey. I was able to
create a good hillshade with the plugin "Shaded Relief", but merging seems
to need to be done with GDAL.

Just like in this message:
http://www.mail-archive.com/qgis-user@lists.osgeo.org/msg04972.html, the
plugin is not working. The raster menu appears, but at least contours and
merge do not work on the sample data provided by the plugin authors. I'm
wondering if I've installed something wrongly or if I'm missing some
library/framework, or if I simply read the installation instructions wrong.
I am also not able to run gdaldem from the command-line, but I am very
unsure as to how to do that in general (I use the GUIs except for R). I'm
attaching the error messages.

I'd be grateful if anyone has some suggestions. Thank you.

Radu

The process failed to start. Either the invoked program is missing, or you
> may have insufficient permissions to invoke the program.
>


Traceback (most recent call last):
>   File "/Users/iovita/.qgis/python/plugins/GdalTools/tools/doMerge.py",
> line 52, in fillInputFilesEdit
>     (self.xmax, self.ymax, self.xmin, self.ymin) = self.getExtent()
>   File "/Users/iovita/.qgis/python/plugins/GdalTools/tools/doMerge.py",
> line 121, in getExtent
>     res = rect1.intersect( rect2 )
> AttributeError: 'NoneType' object has no attribute 'intersect'
>
> Python version:
> 2.6.1 (r261:67515, Jul  7 2009, 23:51:51)
> [GCC 4.2.1 (Apple Inc. build 5646)]
>
> Python path: ['/Applications/Qgis.app/Contents/MacOS/../Resources/python',
> '/Users/iovita/.qgis//python', '/Users/iovita/.qgis//python/plugins',
> '/Applications/Qgis.app/Contents/MacOS/../Resources/python/plugins',
> '/Library/Frameworks/SQLite3.framework/Versions/3/Python',
> '/Library/Frameworks/GDAL.framework/Versions/1.7/Python/site-packages',
> '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python26.zip',
> '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6',
> '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-darwin',
> '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac',
> '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/plat-mac/lib-scriptpackages',
> '/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python',
> '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-tk',
> '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-old',
> '/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/lib-dynload',
> '/Library/Python/2.6/site-packages',
> '/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/PyObjC',
> '/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/wx-2.8-mac-unicode',
> '/Applications/Qgis.app/Contents/Resources/python/plugins/fTools/tools',
> '/Users/iovita/.qgis/python/plugins/GdalTools/tools']
>

-- 
Dr. Radu P. Iovita
Forschungsbereich Altsteinzeit
Römisch-Germanisches Zentralmuseum Mainz
Schloss Monrepos
56567 Neuwied
Germany
Web: http://radu.iovita.googlepages.com/
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