should be applied the same fix applied to gdal_calc... https://github.com/qgis/QGIS/pull/6984
in that case the problem was interpreting the formula as path... in your case you are escaping a real path GdalUtils.escapeAndJoin in getConsoleCommands(...) do escaping... Luigi Pirelli ************************************************************************************************** * LinkedIn: https://www.linkedin.com/in/luigipirelli * Stackexchange: http://gis.stackexchange.com/users/19667/luigi-pirelli * GitHub: https://github.com/luipir * Mastering QGIS 2nd Edition: * https://www.packtpub.com/big-data-and-business-intelligence/mastering-qgis-second-edition * Hire me: http://goo.gl/BYRQKg ************************************************************************************************** On Wed, 13 Jun 2018 at 12:10, Jorge Gustavo Rocha <j...@di.uminho.pt> wrote: > Hi, > > I was showing a very small use case of the modeler, with just two steps, > to count reindeers in a IR raster. It failed with a very simple error. > If I use spaces in the final output name, it fails. This is not a high > priority issue. > > If I set the output name as 'reindeer polygons', the gdal call is: > > gdal_polygonize.py > > /tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/dfee0e38cbd1483ca732fd82a12110c5/OUTPUT.tif > > "\"/tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/ef043a13ea8044c4a4ab9fee9c373b1f/gdal_polygonize_1_reindeer > polygons.shp\"" -b 1 -f "ESRI Shapefile" > > But the additional " are not necessary and it will fail. The entire log > is below. > > If the generated string was just (without the additional \"): > > gdal_polygonize.py > > /tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/dfee0e38cbd1483ca732fd82a12110c5/OUTPUT.tif > > "/tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/ef043a13ea8044c4a4ab9fee9c373b1f/gdal_polygonize_1_reindeer > polygons.shp" -b 1 -f "ESRI Shapefile" > > it works. > > So, it is escaped only if there are spaces on the output name. In Linux > this double escaping fails. Does this escaping works on other OS? Is it > safe to discard this double escaping mechanism? > > Regards, > > J. Gustavo > -- > Jorge Gustavo Rocha > Departamento de Informática > Universidade do Minho > 4710-057 Braga > Tel: +351 253604480 > Fax: +351 253604471 > Móvel: +351 910333888 > skype: nabocudnosor > > > ----------------------------------------------------------------------------------------- > > Processing algorithm… > Algorithm 'Counting Reindeer' starting… > Input parameters: > { 'gdal:polygonize_1:reindeer polygons' : > > '/tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/ed2a4eb50e1d4a6ebe98392ea9f1c520/gdal_polygonize_1_reindeer > polygons.shp', 'infrared' : > '/home/jgr/Documentos/Classification/classification.tif' } > > Prepare algorithm: qgis:rastercalculator_1 > Running Raster calculator [1/2] > Input Parameters: > { CELLSIZE: 1, CRS: 'EPSG:32633', EXPRESSION: > '"<qgis._core.QgsProcessingModelChildParameterSource object at > 0x7f0f3e23be58>@1" = 12', EXTENT: > '/home/jgr/Documentos/Classification/classification.tif', LAYERS: '', > OUTPUT: > > '/tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/b2be67056f714fcca6a0317233b4b134/OUTPUT.tif' > } > OK. Execution took 0.321 s (1 outputs). > Prepare algorithm: gdal:polygonize_1 > Running Polygonize (raster to vector) [2/2] > Input Parameters: > { BAND: 1, EIGHT_CONNECTEDNESS: False, FIELD: 'DN', INPUT: > > '/tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/b2be67056f714fcca6a0317233b4b134/OUTPUT.tif', > OUTPUT: > > '/tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/ed2a4eb50e1d4a6ebe98392ea9f1c520/gdal_polygonize_1_reindeer > polygons.shp' } > GDAL command: > gdal_polygonize.py > > /tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/b2be67056f714fcca6a0317233b4b134/OUTPUT.tif > > "\"/tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/ed2a4eb50e1d4a6ebe98392ea9f1c520/gdal_polygonize_1_reindeer > polygons.shp\"" -b 1 -f "ESRI Shapefile" None DN > GDAL command output: > ERROR 1: Failed to create directory > > "/tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/ed2a4eb50e1d4a6ebe98392ea9f1c520/gdal_polygonize_1_reindeer > polygons.shp" for shapefile datastore. > > Creating output > > "/tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/ed2a4eb50e1d4a6ebe98392ea9f1c520/gdal_polygonize_1_reindeer > polygons.shp" of format ESRI Shapefile. > > Traceback (most recent call last): > > File "/usr/bin/gdal_polygonize.py", line 197, in <module> > > dst_layer = dst_ds.CreateLayer(dst_layername, geom_type=ogr.wkbPolygon, > srs = srs ) > > AttributeError: 'NoneType' object has no attribute 'CreateLayer' > > OK. Execution took 0.144 s (1 outputs). > Model processed OK. Executed 2 algorithms total in 0.772 s. > Execution completed in 0.79 seconds > Results: > {'gdal:polygonize_1:reindeer polygons': > <QgsProcessingOutputLayerDefinition > > {'sink':/tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/ed2a4eb50e1d4a6ebe98392ea9f1c520/gdal_polygonize_1_reindeer > polygons.shp, 'createOptions': {'fileEncoding': 'System'}}>} > > Loading resulting layers > The following layers were not correctly generated. > > /tmp/processing_7b5b06e1a8f14ee09ac38187a00ce932/ed2a4eb50e1d4a6ebe98392ea9f1c520/gdal_polygonize_1_reindeer > polygons.shp > You can check the 'Log Messages Panel' in QGIS main window to find more > information about the execution of the algorithm. > > _______________________________________________ > QGIS-Developer mailing list > QGIS-Developer@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-developer > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-developer
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