[QGIS-it-user] Viewshed analysis Plugin e ultime versioni di QGIS

Sab 20 Feb 2016 02:41:00 PST

Ciao a tutti,
qualche giorno fa ho voluto testare il Plugin Viewshed analysis seguendo un tutorial in rete; premetto che sul mio portatile ho Windows10 e che avevo installato contemporaneamente Qgis 2.12.3 e Qgis 2.13...(a causa di un aggiornamento non voluto fatto qualche giorno fa). Inoltre ho una virtualbox su gui ho installato OSGEOLIVE 8. 
Nel tentativo di portare a termine l'esercizio correlato al plugin, dopo aver inserito tutti i dati richiesti veniva fuori un messaggio di errore:

ERRORE PYTHON
“UnicodeEncodeError: ‘ascii’ codec can’t encode character u’\xe0′ in position 36: ordinal not in range(128)
 Traceback (most recent call last):
  File “C:/Users/Terry/.qgis2/python/plugins\ViewshedAnalysis\viewshedanalysis.py”, line 161, in run
    outPath = ViewshedAnalysisDialog.returnOutputFile(self.dlg)
  File “C:/Users/Terry/.qgis2/python/plugins\ViewshedAnalysis\viewshedanalysisdialog.py”, line 60, in returnOutputFile
    return str(l)
 UnicodeEncodeError: ‘ascii’ codec can’t encode character u’\xe0′ in position 36: ordinal not in range(128)
Versione Python: 2.7.5 (default, May 15 2013, 22:44:16) [MSC v.1500 64 bit (AMD64)]
 Versione di QGIS: 2.12.3-Lyon Lyon, 99ac688″ 

e inoltre si specificava che mancavano questi file: grassrasterprovider6.dll, grassprovider6.dll, grassplugin6.dll. 

Effettuando lo stesso test con QGIS 8.3 nella virtual box non si sono riscontrati problemi. 

Siccome qualcuno mi aveva detto che le nuove versioni di Qgis non sono così stabili ho fatto presente la cosa a coloro che hanno distribuito il tutorial e mi è stato risposto che c'è pericolo di instabilità se si mantengono sullo stesso PC versioni diverse di QGIS...(in effetti avrei dovuto provvedere prima a mantenerne una).
Oggi ho disinstallato le ultime versioni con OSGEO4 setup, ho ripulito il PC (non ho riavviato però...forse avrei dovuto), e ho installato solo Qgis 2.12.3  e GRASS 6.4.3 lasciando il resto inalterato.

All'aperture di Qgis fra i messaggi ho trovato rispettivamente

AVVISI PYTHON
"2016-02-19T22:01:57	1	warning:C:\OSGEO4~1\apps\Python27\lib\site-packages\PyQt4\uic\uiparser.py:844: PendingDeprecationWarning: This method will be removed in future versions.  Use 'elem.iter()' or 'list(elem.iter())' instead.

			  for include in elem.getiterator("include"):  			traceback:  File "<string>", line 1, in <module>			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 271, in loadPlugin			    __import__(packageName)			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 572, in _import			    mod = _builtin_import(name, globals, locals, fromlist, level)			  File "C:/Users/Terry/.qgis2/python/plugins\processing\__init__.py", line 29, in <module>			    from processing.tools.general import *			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 572, in _import			    mod = _builtin_import(name, globals, locals, fromlist, level)			  File "C:/Users/Terry/.qgis2/python/plugins\processing\tools\general.py", line 28, in <module>			    from processing.core.Processing import Processing			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 572, in _import			    mod = _builtin_import(name, globals, locals, fromlist, level)			  File "C:/Users/Terry/.qgis2/python/plugins\processing\core\Processing.py", line 42, in <module>			    from processing.gui.MessageBarProgress import MessageBarProgress			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 572, in _import			    mod = _builtin_import(name, globals, locals, fromlist, level)			  File "C:/Users/Terry/.qgis2/python/plugins\processing\gui\MessageBarProgress.py", line 34, in <module>			    from processing.gui.MessageDialog import MessageDialog			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 572, in _import			    mod = _builtin_import(name, globals, locals, fromlist, level)			  File "C:/Users/Terry/.qgis2/python/plugins\processing\gui\MessageDialog.py", line 38, in <module>			    os.path.join(pluginPath, 'ui', 'DlgMessage.ui'))			  File "C:\OSGEO4~1\apps\Python27\lib\site-packages\PyQt4\uic\__init__.py", line 210, in loadUiType			    winfo = compiler.UICompiler().compileUi(uifile, code_string, from_imports, resource_suffix)			  File "C:\OSGEO4~1\apps\Python27\lib\site-packages\PyQt4\uic\Compiler\compiler.py", line 139, in compileUi			    w = self.parse(input_stream, resource_suffix)			  File "C:\OSGEO4~1\apps\Python27\lib\site-packages\PyQt4\uic\uiparser.py", line 933, in parse			    actor(elem)			  File "C:\OSGEO4~1\apps\Python27\lib\site-packages\PyQt4\uic\uiparser.py", line 844, in readResources			    for include in elem.getiterator("include"):  	2016-02-19T22:01:58	1	warning:C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py:572: UserWarning: Module owslib was already imported from C:/OSGEO4~1/apps/qgis/./python\owslib\__init__.pyc, but c:\osgeo4~1\apps\python27\lib\site-packages\owslib-0.7.2-py2.7.egg is being added to sys.path			  mod = _builtin_import(name, globals, locals, fromlist, level)

			traceback:  File "<string>", line 1, in <module>			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 306, in startPlugin			    plugins[packageName] = package.classFactory(iface)			  File "C:/OSGEO4~1/apps/qgis/./python/plugins\MetaSearch\__init__.py", line 29, in classFactory			    from MetaSearch.plugin import MetaSearchPlugin			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 572, in _import			    mod = _builtin_import(name, globals, locals, fromlist, level)			  File "C:/OSGEO4~1/apps/qgis/./python/plugins\MetaSearch\plugin.py", line 31, in <module>			    from MetaSearch.dialogs.maindialog import MetaSearchDialog			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 572, in _import			    mod = _builtin_import(name, globals, locals, fromlist, level)			  File "C:/OSGEO4~1/apps/qgis/./python/plugins\MetaSearch\dialogs\maindialog.py", line 44, in <module>			    from owslib.csw import CatalogueServiceWeb			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 572, in _import			    mod = _builtin_import(name, globals, locals, fromlist, level)			  File "C:/OSGEO4~1/apps/qgis/./python\owslib\csw.py", line 18, in <module>			    from owslib.util import OrderedDict			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 572, in _import			    mod = _builtin_import(name, globals, locals, fromlist, level)			  File "C:/OSGEO4~1/apps/qgis/./python\owslib\util.py", line 13, in <module>			    import pytz			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 572, in _import			    mod = _builtin_import(name, globals, locals, fromlist, level)			  File "C:\OSGEO4~1\apps\Python27\lib\site-packages\pytz-2012j-py2.7.egg\pytz\__init__.py", line 35, in <module>			    from pkg_resources import resource_stream			  File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 572, in _import			    mod = _builtin_import(name, globals, locals, fromlist, level)			  File "build\bdist.win-amd64\egg\pkg_resources.py", line 3027, in <module>			    add_activation_listener(lambda dist: dist.activate())			  File "build\bdist.win-amd64\egg\pkg_resources.py", line 741, in subscribe			    callback(dist)			  File "build\bdist.win-amd64\egg\pkg_resources.py", line 3027, in <lambda>			    add_activation_listener(lambda dist: dist.activate())			  File "build\bdist.win-amd64\egg\pkg_resources.py", line 2511, in activate			    self.insert_on(path)			  File "build\bdist.win-amd64\egg\pkg_resources.py", line 2608, in insert_on			    self.check_version_conflict()			  File "build\bdist.win-amd64\egg\pkg_resources.py", line 2650, in check_version_conflict			    " to sys.path" % (modname, fn, self.location)," 
 PLUGIN2016-02-19T21:20:44	   0	   Caricato Cattura coordinate (Percorso: C:/OSGEO4~1/apps/qgis/plugins/coordinatecaptureplugin.dll)

2016-02-19T21:20:44	  0	   Caricato Convertitore Dxf2Shp (Percorso: C:/OSGEO4~1/apps/qgis/plugins/dxf2shpconverterplugin.dll)2016-02-19T21:20:44	  0	   Caricato eVis (Percorso: C:/OSGEO4~1/apps/qgis/plugins/evis.dll)2016-02-19T21:20:44	  0	   Caricato Georeferenziatore raster (GDAL) (Percorso: C:/OSGEO4~1/apps/qgis/plugins/georefplugin.dll)2016-02-19T21:20:44	  0	   Caricato Strumenti GPS (Percorso: C:/OSGEO4~1/apps/qgis/plugins/gpsimporterplugin.dll)2016-02-19T21:20:44	  1	   Impossibile caricare C:/OSGEO4~1/apps/qgis/plugins/heatmapplugin.dll (Motivo: Cannot load library C:/OSGEO4~1/apps/qgis/plugins/heatmapplugin.dll: Impossibile trovare la procedura specificata.2016-02-19T21:20:44	  0    	Caricato Plugin interpolazione (Percorso: C:/OSGEO4~1/apps/qgis/plugins/interpolationplugin.dll)2016-02-19T21:20:44   0    Caricato OfflineEditing (Percorso: C:/OSGEO4~1/apps/qgis/plugins/offlineeditingplugin.dll)2016-02-19T21:20:44	  1    	Impossibile caricare C:/OSGEO4~1/apps/qgis/plugins/oracleplugin.dll (Motivo: Cannot load library C:/OSGEO4~1/apps/qgis/plugins/oracleplugin.dll: Impossibile trovare la procedura specificata.)2016-02-19T21:20:44	   0	  Caricato Plugin per l'analisi geomorfologica (Percorso: C:/OSGEO4~1/apps/qgis/plugins/rasterterrainplugin.dll)2016-02-19T21:20:44	   0	  Caricato Grafo strade (Percorso: C:/OSGEO4~1/apps/qgis/plugins/roadgraphplugin.dll)2016-02-19T21:20:44	   0	  Caricato Plugin di interrogazione spaziale (Percorso: C:/OSGEO4~1/apps/qgis/plugins/spatialqueryplugin.dll)2016-02-19T21:20:44	   0	  Caricato SPIT (Percorso: C:/OSGEO4~1/apps/qgis/plugins/spitplugin.dll)2016-02-19T21:20:44	   0	  Caricato Validatore topologico (Percorso: C:/OSGEO4~1/apps/qgis/plugins/topolplugin.dll)2016-02-19T21:20:44	   0	  Caricato Plugin di statistica zonale (Percorso: C:/OSGEO4~1/apps/qgis/plugins/zonalstatisticsplugin.dll)2016-02-19T21:20:48	   0	  Caricato Processing (pacchetto: processing)2016-02-19T21:20:48	   0   	Caricato Viewshed Analysis (pacchetto: ViewshedAnalysis)2016-02-19T21:20:48	   0	  Caricato DB Manager (pacchetto: db_manager)2016-02-19T21:20:48	   0	  Caricato fTools (pacchetto: fTools)2016-02-19T21:20:48	   0	  Caricato GdalTools (pacchetto: GdalTools)2016-02-19T21:20:51	   0   	Caricato MetaSearch Catalogue Client (pacchetto: MetaSearch) Se poi rieffettuo il test per il plugin il messaggio di errore stavolta è: 
ERRORE PYTHON
"2016-02-19T21:43:17	1	Traceback (most recent call last): 
			  File "C:/Users/Terry/.qgis2/python/plugins\ViewshedAnalysis\viewshedanalysis.py", line 194, in runz_obs_field, z_target_field, curv, refraction)
File "C:/Users/Terry/.qgis2/python/plugins\ViewshedAnalysis\doViewshed.py", line 403, in Viewshed
RasterPath= str(QgsMapLayerRegistry.instance().mapLayer(Raster_layer).dataProvider().dataSourceUri())
UnicodeEncodeError: 'ascii' codec can't encode character u'\xe0' in position 36: ordinal not in range(128)"

Ammettendo che non ci capisco granché di errori sapete spiegarmi se ci sono uno o più problemi diverse in concomitanza, se si tratta di un unico problema, da cosa tutto ciò dipende e comunque come potrei risolvere?

Grazie mille e scusate la lungaggine.

Buona serata a tutti

Terry

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