[Qgis-user] problems with polygonize with qgis2.2

[William Kyngesburye]

A couple thoughts.  At least from Python and the QGIS python console, I don't have problems.

Try running this in the QGIS python console:

from shapely.ops import polygonize

Also, I wonder if the extra copy of the Processing plugin is the problem (your error is coming out of your .qgis2 installed (updated) plugins).  Possibly you updated the processing plugin in QGIS 2.0, but now it's older than the copy in 2.2.  Try deleting the copy in ~/.qgis2.

On Feb 26, 2014, at 10:27 AM, William Kyngesburye wrote:

> I added Shapely to my GEOS framework last fall.  It looks like it's having problems loading the GEOS framework.  I'll look into it this evening.
> 
> On Feb 26, 2014, at 10:18 AM, Agustin Diez-Castillo wrote:
> 
>> Not sure if the right list 
>> When trying to polygonize with Kyngchaos' last version I got this message. 
>> No sure if this problem only occurs in Mac.
>> Agustin
>> 
>> OSError: dlopen(/usr/local/lib/libgeos_c.dylib, 6): no suitable image found. Did find:
>> /usr/local/lib/libgeos_c.dylib: no matching architecture in universal wrapper
>> 
>> Uncaught error while executing algorithm
>> Traceback (most recent call last):
>> Traceback (most recent call last):
>> File "/Users/adiez/.qgis2/python/plugins/processing/core/GeoAlgorithm.py", line 202, in execute
>> self.processAlgorithm(progress)
>> File "/Users/adiez/.qgis2/python/plugins/processing/algs/Polygonize.py", line 48, in processAlgorithm
>> from shapely.ops import polygonize
>> File "/Applications/QGIS.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 453, in _import
>> mod = _builtin_import(name, globals, locals, fromlist, level)
>> File "/Library/Frameworks/GEOS.framework/Versions/3/Python/2.7/shapely/ops.py", line 7, in <module>
>> from shapely.geos import lgeos
>> File "/Applications/QGIS.app/Contents/MacOS/../Resources/python/qgis/utils.py", line 453, in _import
>> mod = _builtin_import(name, globals, locals, fromlist, level)
>> File "/Library/Frameworks/GEOS.framework/Versions/3/Python/2.7/shapely/geos.py", line 59, in <module>
>> _lgeos = load_dll('geos_c', fallbacks=alt_paths)
>> File "/Library/Frameworks/GEOS.framework/Versions/3/Python/2.7/shapely/geos.py", line 32, in load_dll
>> return CDLL(lib)
>> File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/ctypes/__init__.py", line 365, in __init__
>> self._handle = _dlopen(self._name, mode)
>> OSError: dlopen(/usr/local/lib/libgeos_c.dylib, 6): no suitable image found. Did find:
>> /usr/local/lib/libgeos_c.dylib: no matching architecture in universal wrapper
>> QGIS version2.2.0-ValmieraQGIS code revisionCompiled against Qt4.8.5Running against Qt4.8.5Compiled against GDAL/OGR1.10.1Running against GDAL/OGR1.10.1Compiled against GEOS3.4.2-CAPI-1.8.2Running against GEOS3.4.2-CAPI-1.8.2 r3921PostgreSQL Client Version9.3.1SpatiaLite Version4.1.1QWT Version6.0.2PROJ.4 Version480QScintilla2 Version2.8
> 
> -----
> William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
> http://www.kyngchaos.com/
> 
> [Trillian]  What are you supposed to do WITH a maniacally depressed robot?
> 
> [Marvin]  You think you have problems?  What are you supposed to do if you ARE a maniacally depressed robot?  No, don't try and answer, I'm 50,000 times more intelligent than you and even I don't know the answer...
> 
> - HitchHiker's Guide to the Galaxy
> 
> 
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-----
William Kyngesburye <kyngchaos*at*kyngchaos*dot*com>
http://www.kyngchaos.com/

The equator is so long, it could encircle the earth completely once.