Processing: Clip raster by mask (GDAL) throws an error if the output is a temporary file

[qgib]

Author Name: Filipe Dias (@fsdias)
Original Redmine Issue: 15559
Affected QGIS version: 2.16.2
Redmine category:processing/gdal
Assignee: Victor Olaya

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It works if the user selects "save to file".

2016-09-13T09:33:17 0 GDAL execution console output
2016-09-13T09:34:01 0 GDAL execution console output
2016-09-13T09:34:01 2 Error loading result layer:
Traceback (most recent call last):
File "/usr/share/qgis/python/plugins/processing/gui/Postprocessing.py", line 75, in handleAlgorithmResults
out.name))
File "/usr/share/qgis/python/plugins/processing/tools/dataobjects.py", line 199, in load
+ '
Check the processing framework log to look for errors')
RuntimeError: Could not load layer: /tmp/processing7a958fa4c8b246d492f2bfb458dc7fcb/d75a7af7c70740fb95780428b2fbf124/OUTPUT.tif
Check the processing framework log to look for errors

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• screenshot.png (Filipe Dias)
• issue.tar.gz (Filipe Dias)

[qgib]

Author Name: Victor Olaya (@volaya)

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just tried in master and it works

Can you confirm that the file is not created?

Aslo, other algorithms work when using temporary filenames?

[qgib]

Author Name: Filipe Dias (@fsdias)

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The file is correctly generated. I went to:

/tmp/processing7a958fa4c8b246d492f2bfb458dc7fcb/d61725a001ca42c39103e38932849a37

and loaded "Extent.tiff" into QGIS sucessfully.

It seems there is something wrong with the import

[qgib]

Author Name: Filipe Dias (@fsdias)

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I only tried this with GDAL Slope and works as expected

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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Are you sure that file correctly generated? Because path from your comment

/tmp/processing7a958fa4c8b246d492f2bfb458dc7fcb/d61725a001ca42c39103e38932849a37

is not the same as path in the error message

/tmp/processing7a958fa4c8b246d492f2bfb458dc7fcb/d75a7af7c70740fb95780428b2fbf124

[qgib]

Author Name: Filipe Dias (@fsdias)

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Yes, I am sure. The paths are different because I tried to run it a second time.

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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Works for me with QGIS 2.16.2 (7854fe2). Also tested with master and master_2 — same result, works fine.

[qgib]

Author Name: Filipe Dias (@fsdias)

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I've narrowed it down. With the attached files do the following:

• use "Polygon from layer extent" on "shape.shp" and save it as temporary file

• use the above temporary file in "Clip raster by mask layer"

• result in the screenshot

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• 10388 was configured as screenshot.png

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• screenshot.png (Filipe Dias)

[qgib]

Author Name: Filipe Dias (@fsdias)

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• 10389 was configured as issue.tar.gz

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• issue.tar.gz (Filipe Dias)

[qgib]

Author Name: Victor Olaya (@volaya)

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The error is that it is creating a Extent.tif file...while it should be called OUTPUT.tif

No idea why that is happening. I will check

[qgib]

Author Name: Alexander Bruy (@alexbruy)

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This happens because of exporting vector layers (to handle selection) and updating command with new layer names/paths. Already fixed in master, master_2 and backported to 2.14 and 2.16. Please test with latest versions and report.

[qgib]

Author Name: Filipe Dias (@fsdias)

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Great. I will keep and eye out for this bug in the next point release.

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