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18.7 version ans I try to use SAGA algorithm Catchment area and I take Unexpected error because that algorithm look easy.

I test with the different raster layer and the some error.

Maybe I have wrong define SAGA algorithms in QGIS?

Any idea?

here is the log message:

Algorithm Catchment area starting...
io_gdal 0 -TRANSFORM 1 -RESAMPLING 0 -GRIDS "C:\Users\username\AppData\Local\Temp\processing88768a29149b4908aa7eeeca546aeed2\9b66ada8123c4746bcf77335b5dc17b1\dem.sgrd" -FILES "C:\Users\username\Desktop\TWI_MODEL\dem.tif"
ta_hydrology "Flow Accumulation (Top-Down)" -ELEVATION "C:\Users\username\AppData\Local\Temp\processing88768a29149b4908aa7eeeca546aeed2\9b66ada8123c4746bcf77335b5dc17b1\dem.sgrd" -METHOD 0 -CAREA "C:\Users\username\AppData\Local\Temp\processing88768a29149b4908aa7eeeca546aeed2\ab16a4475bcf42a992e655c2d5f608eb\CAREA.sdat"

C:\Users\username\Desktop\qq\bin>set SAGA=C:\Users\username\Desktop\qq\apps\saga-ltr

C:\Users\username\Desktop\qq\bin>set SAGA_MLB=C:\Users\username\Desktop\qq\apps\saga-ltr\modules

C:\Users\username\Desktop\qq\bin>PATH=C:\Users\username\Desktop\qq\apps\Python27\lib\site-packages\Shapely-1.2.18-py2.7-win32.egg\shapely\DLLs;C:\Users\username\Desktop\qq\apps\Python27\DLLs;C:\Users\username\Desktop\qq\apps\python27\lib\site-packages\numpy\core;C:\Users\username\Desktop\qq\apps\qgis\bin;C:\Users\username\Desktop\qq\apps\grass\grass-7.2.0\lib;C:\Users\username\Desktop\qq\apps\grass\grass-7.2.0\bin;C:\Users\username\Desktop\qq\bin;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\WBem;C:\Users\username\Desktop\qq\apps\Python27\Scripts;C:\Users\username\Desktop\qq\apps\saga-ltr;C:\Users\username\Desktop\qq\apps\saga-ltr\modules

C:\Users\username\Desktop\qq\bin>saga_cmd io_gdal 0 -TRANSFORM 1 -RESAMPLING 0 -GRIDS "C:\Users\username\AppData\Local\Temp\processing88768a29149b4908aa7eeeca546aeed2\9b66ada8123c4746bcf77335b5dc17b1\dem.sgrd" -FILES "C:\Users\username\Desktop\TWI_MODEL\dem.tif"
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SAGA Version: 2.3.2 (32 bit)

____________________________
library path: C:\Users\username\Desktop\qq\apps\saga-ltr\modules\
library name: io_gdal
library : GDAL/OGR
tool : Import Raster
author : O.Conrad (c) 2007 (A.Ringeler)
processors : 4 [4]
____________________________



Parameters


Grids: No objects
Files: "C:\Users\username\Desktop\TWI_MODEL\dem.tif"
Select from Multiple Bands:
Alphanumeric Sorting: yes
Transformation: yes
Resampling: Nearest Neighbour


loading: C:\Users\username\Desktop\TWI_MODEL\dem.tif



Driver: GTiff

Bands: 1

Rows: 2224

Columns: 3691


loading: dem





C:\Users\username\Desktop\qq\bin>saga_cmd ta_hydrology "Flow Accumulation (Top-Down)" -ELEVATION "C:\Users\username\AppData\Local\Temp\processing88768a29149b4908aa7eeeca546aeed2\9b66ada8123c4746bcf77335b5dc17b1\dem.sgrd" -METHOD 0 -CAREA "C:\Users\username\AppData\Local\Temp\processing88768a29149b4908aa7eeeca546aeed2\ab16a4475bcf42a992e655c2d5f608eb\CAREA.sdat"
Unknown option 'CAREA'
____________________________

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____________________________

SAGA Version: 2.3.2 (32 bit)

____________________________
library path: C:\Users\username\Desktop\qq\apps\saga-ltr\modules\
library name: ta_hydrology
library : Hydrology
tool : Flow Accumulation (Top-Down)
author : O.Conrad (c) 2001-2016, T.Grabs portions (c) 2010
processors : 4 [4]
____________________________


Usage: saga_cmd ta_hydrology 0 [-ELEVATION ] [-SINKROUTE ] [-WEIGHTS ] [-FLOW ] [-VAL_INPUT ] [-VAL_MEAN ] [-ACCU_MATERIAL ] [-ACCU_TARGET ] [-ACCU_TOTAL ] [-ACCU_LEFT ] [-ACCU_RIGHT ] [-STEP ] [-FLOW_UNIT ] [-FLOW_LENGTH ] [-LINEAR_VAL ] [-LINEAR_DIR ] [-METHOD ] [-LINEAR_DO ] [-LINEAR_MIN ] [-CONVERGENCE ] [-NO_NEGATIVES ] [-WEIGHT_LOSS ]
-ELEVATION: Elevation
Grid (input)
-SINKROUTE: Sink Routes
Grid (optional input)
-WEIGHTS: Weights
Grid (optional input)
-FLOW: Flow Accumulation
Grid (output)
-VAL_INPUT: Input for Mean over Catchment
Grid (optional input)
-VAL_MEAN: Mean over Catchment
Grid (output)
-ACCU_MATERIAL: Material for Accumulation
Grid (optional input)
-ACCU_TARGET: Accumulation Target
Grid (input)
-ACCU_TOTAL: Accumulated Material
Grid (optional output)
-ACCU_LEFT: Accumulated Material (Left Side)
Grid (optional output)
-ACCU_RIGHT: Accumulated Material (Right Side)
Grid (optional output)
-STEP: Step
Integer
Minimum: 1
Default: 1
-FLOW_UNIT: Flow Accumulation Unit
Choice
Available Choices:
[0] number of cells
[1] cell area
Default: 1
-FLOW_LENGTH: Flow Path Length
Grid (optional output)
-LINEAR_VAL: Linear Flow Threshold Grid
Grid (optional input)
-LINEAR_DIR: Channel Direction
Grid (optional input)
-METHOD: Method
Choice
Available Choices:
[0] Deterministic 8
[1] Rho 8
[2] Braunschweiger Reliefmodell
[3] Deterministic Infinity
[4] Multiple Flow Direction
[5] Multiple Triangular Flow Directon
[6] Multiple Maximum Downslope Gradient Based Flow Directon
Default: 4
-LINEAR_DO: Thresholded Linear Flow
Boolean
Default: 0
-LINEAR_MIN: Linear Flow Threshold
Integer
Default: 500
-CONVERGENCE: Convergence
Floating point
Minimum: 0.000000
Default: 1.100000
-NO_NEGATIVES: Prevent Negative Flow Accumulation
Boolean
Default: 1
-WEIGHT_LOSS: Loss through Negative Weights
Grid (optional output)

C:\Users\username\Desktop\qq\bin>exit
Converting outputs
Loading resulting layers

here the error message :

The following layers were not correctly generated.

Catchment Area

You can check the log messages to find more information about the execution of the algorithm

  • 2
    I reproduced this Unknown option 'CAREA' error with SAGA 2.3.1 and 4.1.0. Is it okay for you to use older versions? SAGA versions up to 2.2.0 would work (2.1.4 was more stable for me). But I only tested 64-bit versions so it may be different from 32-bit cases. – Kazuhito May 24 '17 at 4:40
  • @Kazuhito can i use old SAGA version in current QGIS version ? – jessie jes May 24 '17 at 14:01
  • 2
    Yes. You just need to download a zip file from sourceforge and extract it into C:/Program Files/QGIS2.18/apps folder, then set it as SAGA folder in Processing provider setting. – Kazuhito May 24 '17 at 14:08
  • @Kazuhito yes but can i use in pyqgs ?because i work python – jessie jes May 24 '17 at 14:36
  • Please edit your OP to include additional information about your operating environment. Then you can expect more appropriate answers and comments. – Kazuhito May 24 '17 at 14:53

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