[Qgis-user] Clip Raster by Mask Layer algorithm not working when part of processing model

[Nyall Dawson]

On 18 April 2018 at 06:03, Phil Ribbens <philip.ribbens at gmail.com> wrote:
> Hi,
>
> I'm trying to include the “Clip raster by mask layer” algorithm in a
> processing model, but I can’t get it to work. What’s weird is that when I
> run the algorithm by itself (i.e. not as part of a model), it works fine.
>
> Below are the logs of each (when I run it by itself and when I run it as
> part of a model). From studying these it seems like the only difference (and
> what seems to be causing the problem) is that when the algorithm is run from
> within a model the path to the MASK layer isn’t being included in the GDAL
> command. Anybody have any idea why? Am I doing something wrong? Is it a bug?

This is a known issue in 3.0.1 - it will be fixed in 3.0.2

Nyall

>
> Thanks,
> Phil Ribbens
>
>
> Running Clip raster by mask layer by itself (works fine)
> Processing algorithm…
> AlgorithmDialog
> Input parameters:
> { 'INPUT' :
> '/var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_c893e43e9931410397ab42a423fd9d61/e27038e2ea2f4b42842aaacf3c6bf15c/OUTPUT.tif',
> 'MASK' : '/Users/philipribbens/Dropbox/work/QGIS plugin for
> Key-Log/lower_roanoke_subbasin.shp', 'NODATA' : 255, 'ALPHA_BAND' : False,
> 'CROP_TO_CUTLINE' : True, 'KEEP_RESOLUTION' : False, 'OPTIONS' : '',
> 'DATA_TYPE' : 0, 'OUTPUT' :
> '/var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_6c6a3f6013994c2eafbaf28a231297a3/44f299a602e34ef8a666e6848ff95658/OUTPUT.tif'
> }
>
> GDAL command:
> gdalwarp -ot Byte -of GTiff -cutline "/Users/philipribbens/Dropbox/work/QGIS
> plugin for Key-Log/lower_roanoke_subbasin.shp" -crop_to_cutline -dstnodata
> 255.0
> /var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_c893e43e9931410397ab42a423fd9d61/e27038e2ea2f4b42842aaacf3c6bf15c/OUTPUT.tif
> /var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_6c6a3f6013994c2eafbaf28a231297a3/44f299a602e34ef8a666e6848ff95658/OUTPUT.tif
> GDAL command output:
> Copying color table from
> /var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_c893e43e9931410397ab42a423fd9d61/e27038e2ea2f4b42842aaacf3c6bf15c/OUTPUT.tif
> to new file.
> Creating output file that is 3642P x 2860L.
> Processing input file
> /var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_c893e43e9931410397ab42a423fd9d61/e27038e2ea2f4b42842aaacf3c6bf15c/OUTPUT.tif.
> Using internal nodata values (e.g. 255) for image
> /var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_c893e43e9931410397ab42a423fd9d61/e27038e2ea2f4b42842aaacf3c6bf15c/OUTPUT.tif.
> 0...10...20...30...40...50...60...70...80...90...100 - done.
> Execution completed in 0.65 seconds
> Results:
> {'OUTPUT': <QgsProcessingOutputLayerDefinition
> {'sink':/var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_6c6a3f6013994c2eafbaf28a231297a3/44f299a602e34ef8a666e6848ff95658/OUTPUT.tif,
> 'createOptions': {'fileEncoding': 'System'}}>}
>
> Loading resulting layers
> Algorithm 'Clip raster by mask layer' finished
>
>
>
> Running Clip raster by mask layer as part of a model (doesn’t work)
> Processing algorithm…
> AlgorithmDialog
> Input parameters:
> { 'inputrasterlayer' :
> '/var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_c893e43e9931410397ab42a423fd9d61/e27038e2ea2f4b42842aaacf3c6bf15c/OUTPUT.tif',
> 'maskvectorlayer' : '/Users/philipribbens/Dropbox/work/QGIS plugin for
> Key-Log/lower_roanoke_subbasin.shp', 'gdal:cliprasterbymasklayer_1:Final
> clipped raster' :
> '/var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_6c6a3f6013994c2eafbaf28a231297a3/3b9e2df02eca4aa6b8f6476df78cdf9f/gdal:cliprasterbymasklayer_1:Final
> clipped raster.tif' }
>
> Prepare algorithm: gdal:cliprasterbymasklayer_1
> Running Clip raster by mask layer [1/1]
> Input Parameters:
> { ALPHA_BAND: False, CROP_TO_CUTLINE: True, DATA_TYPE: 0, INPUT:
> '/var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_c893e43e9931410397ab42a423fd9d61/e27038e2ea2f4b42842aaacf3c6bf15c/OUTPUT.tif',
> KEEP_RESOLUTION: False, MASK: '/Users/philipribbens/Dropbox/work/QGIS plugin
> for Key-Log/lower_roanoke_subbasin.shp', NODATA: 255, OPTIONS: '', OUTPUT:
> '/var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_6c6a3f6013994c2eafbaf28a231297a3/3b9e2df02eca4aa6b8f6476df78cdf9f/gdal:cliprasterbymasklayer_1:Final
> clipped raster.tif' }
> GDAL command:
> gdalwarp -ot Byte -of GTiff -cutline -crop_to_cutline -dstnodata 255.0
> /var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_c893e43e9931410397ab42a423fd9d61/e27038e2ea2f4b42842aaacf3c6bf15c/OUTPUT.tif
> "/var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_6c6a3f6013994c2eafbaf28a231297a3/3b9e2df02eca4aa6b8f6476df78cdf9f/gdal:cliprasterbymasklayer_1:Final
> clipped raster.tif"
> GDAL command output:
> ERROR 1: Cannot open -crop_to_cutline.
> OK. Execution took 0.196 s (1 outputs).
> Model processed OK. Executed 1 algorithms total in 0.372 s.
> Execution completed in 0.41 seconds
> Results:
> {'gdal:cliprasterbymasklayer_1:Final clipped raster':
> <QgsProcessingOutputLayerDefinition
> {'sink':/var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_6c6a3f6013994c2eafbaf28a231297a3/3b9e2df02eca4aa6b8f6476df78cdf9f/gdal:cliprasterbymasklayer_1:Final
> clipped raster.tif, 'createOptions': {'fileEncoding': 'System'}}>}
>
> Loading resulting layers
> The following layers were not correctly generated.
>
> /var/folders/10/qfg4mkl127gcxgmpr82tl1xc0000gq/T/processing_6c6a3f6013994c2eafbaf28a231297a3/3b9e2df02eca4aa6b8f6476df78cdf9f/gdal:cliprasterbymasklayer_1:Final
> clipped raster.tif
>
> You can check the 'Log Messages Panel' in QGIS main window to find more
> information about the execution of the algorithm.
>
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