Add support for WCS layers for GDAL based tools in Processing

[qgib]

Author Name: Hans Erik Jacobsen (@haej)
Original Redmine Issue: 21145

Redmine category:processing/gdal

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The function Raster>Extraction>Clip Raster by Extend fails when rasterlayer is WCS

Workaround: RightClick layer, use Export>Save As..., and use Map Canvas Extent

[qgib]

Author Name: Giovanni Manghi (@gioman)

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This is duplicate of another ticket (a feature request) where is asked to allow use WCS layer as input layers for Processing tools, at the moment they are not supported.

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• status_id was changed from Open to Feedback

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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Actually they work for native QGIS algorithms, just not the gdal based ones

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Nyall Dawson wrote:

Actually they work for native QGIS algorithms, just not the gdal based ones

mapserver wcs layers do not show as input for qgis core tools. GDAL tools give an error like "FAILURE: No target dataset specified.".

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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mapserver wcs layers do not show as input for qgis core tools.

Hmm - that's a bug in itself. They do work, they are just filtered from the GUI. I'll fix.

[qgib]

Author Name: Nyall Dawson (@nyalldawson)

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Actually I can't confirm this - if I add a WCS layer I can pick it as an input for native tools like "Raster Surface Volume", "Reclassify by table", etc. It's slow, but that's expected when working directly with a remote source like WCS...

[qgib]

Author Name: Giovanni Manghi (@gioman)

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Nyall Dawson wrote:

Actually I can't confirm this - if I add a WCS layer I can pick it as an input for native tools like "Raster Surface Volume", "Reclassify by table", etc. It's slow, but that's expected when working directly with a remote source like WCS...

you are right, I tried again and it seems to work here too... weird, probably I hit a glitch.

[qgib]

Author Name: Giovanni Manghi (@gioman)

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• status_id was changed from Feedback to Open
• tracker_id was changed from 1 to 2
• subject was changed from Clip WCS Raster by Extent to Add support for WCS layers for GDAL based tools in Processing
• category_id was changed from Rasters to Processing/GDAL

[alexbruy]

Duplicates #15322.

[damateos]

Hi,
I didn't know if publish this here or in #15322, but I think the title of this issue is more accurate with the problem.
Nowadays the WCS layers are valid layer inputs for native tools as "Raster Surface Volume", "Reclassify by table" or "Export" but not for the GDAL processing tools.