Processing QGIS Zonal Stats broken on Windows

[qgib]

Author Name: Giovanni Manghi (@gioman)
Original Redmine Issue: 14858
Affected QGIS version: master
Redmine category:processing/qgis
Assignee: Victor Olaya

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Seems only Windows is affected (the last working release seems to be 2.6).

Try this project

https://github.com/qgis/QGIS-Documentation/tree/master/source/docs/training_manual/exercise_data/processing/more_backends

You'll get

Uncaught error while executing algorithm
Traceback (most recent call last):
File "C:/OSGeo4W/apps/qgis/./python/plugins\processing\core\GeoAlgorithm.py", line 203, in execute
self.processAlgorithm(progress)
File "C:/OSGeo4W/apps/qgis/./python/plugins\processing\algs\qgis\ZonalStatistics.py", line 249, in processAlgorithm
attrs.insert(idxMode, float(mode(masked, axis=None)[0][0]))
File "C:\OSGeo4W\apps\Python27\lib\site-packages
umpy\ma\core.py", line 2941, in getitem
dout = ndarray.getitem(_data, indx)
IndexError: 0-d arrays can't be indexed

on 2.14 and master

and

		Uncaught error while executing algorithm

Traceback (most recent call last):
Traceback (most recent call last):
File "C:/OSGeo4W/apps/qgis-ltr/./python/plugins\processing\core\GeoAlgorithm.py", line 232, in execute
self.processAlgorithm(progress)
File "C:/OSGeo4W/apps/qgis-ltr/./python/plugins\processing\algs\qgis\ZonalStatistics.py", line 105, in processAlgorithm
(startColumn, startRow) = mapToPixel(xMin, yMax, geoTransform)
File "C:/OSGeo4W/apps/qgis-ltr/./python/plugins\processing\tools
aster.py", line 68, in mapToPixel
gdal.InvGeoTransform(geoTransform)[1], mX, mY)
TypeError: not a sequence

on 2.8

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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Tested with geomorpho.qgs project (more_backends.qgs seems does not have any raster layers in it) under Windows using latest qgis-dev package — no errors, statistics calculated correctly. I got same results as under Linux.

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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Issue with 2.8.9 confirmed, I also got

Uncaught error while executing algorithm
Traceback (most recent call last):
Traceback (most recent call last):
  File "C:/OSGEO4~1/apps/qgis-ltr-dev/./python/plugins\\processing\\core\\GeoAlgorithm.py", line 232, in execute
    self.processAlgorithm(progress)
  File "C:/OSGEO4~1/apps/qgis-ltr-dev/./python/plugins\\processing\\algs\\qgis\\ZonalStatistics.py", line 105, in processAlgorithm
    (startColumn, startRow) = mapToPixel(xMin, yMax, geoTransform)
  File "C:/OSGEO4~1/apps/qgis-ltr-dev/./python/plugins\\processing\\tools\
aster.py", line 68, in mapToPixel
    gdal.InvGeoTransform(geoTransform)[1], mX, mY)
TypeError: not a sequence

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Alexander Bruy wrote:

Tested with geomorpho.qgs project (more_backends.qgs seems does not have any raster layers in it) under Windows using latest qgis-dev package — no errors, statistics calculated correctly. I got same results as under Linux.

weird you don't get errors in 2.14 or master, I have clean testing environments on windows and I see the same on both OSes.

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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Fix for 2.8.x commited.

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Alexander Bruy wrote:

Fix for 2.8.x commited.

still can't replicate the other error on 2.14/master?

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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Yes, no error on master.

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Alexander Bruy wrote:

Yes, no error on master.

tested Windows right (is only Windows issue)?

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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Yes, I tested on Windows and can't reproduce this

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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Seems works fine on all systems now

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• resolution was changed from to fixed/implemented
• status_id was changed from Open to Closed