QGIS » QGIS Application

If SAGA is not installed with osgeo4w then Processing has always allowed to use and external SAGA installation by configuring the proper path in Processing configurations.

While testing the support for SAGA LTR I therefore downloaded

https://downloads.sourceforge.net/project/saga-gis/SAGA%20-%202.3/SAGA%202.3.1/saga_2.3.1_x64.zip?r=https%3A%2F%2Fsourceforge.net%2Fprojects%2Fsaga-gis%2Ffiles%2FSAGA%2520-%25202.3%2FSAGA%25202.3.1%2F&ts=1491557320&use_mirror=netcologne

uncompressed and pointed Processing to it.

Processing correctly recognizes SAGA and SAGA version, tools open and are run, but ultimately they fail. This does not happen if used SAGA ltr is the one shipped with osgeo4w. This anyway used to work as expected in the past.

<pre>

-----
Algorithm Analytical hillshading starting...
io_gdal 0 -TRANSFORM 1 -RESAMPLING 0 -GRIDS "C:\\Users\\qgis\\AppData\\Local\\Temp\\processing926e3fb9581345ea92a61a65c9b211c4\\51bd78a192e243b9ba5d841fc68d84f8\\madeiramdt100.sgrd" -FILES "C:\\Users\\qgis\\Desktop\\data\
asters\\madeira_mdt_100.tif"
ta_lighting "Analytical Hillshading" -ELEVATION "C:\\Users\\qgis\\AppData\\Local\\Temp\\processing926e3fb9581345ea92a61a65c9b211c4\\51bd78a192e243b9ba5d841fc68d84f8\\madeiramdt100.sgrd" -METHOD 0 -AZIMUTH 315 -DECLINATION 45 -EXAGGERATION 4 -SHADE "C:\\Users\\qgis\\AppData\\Local\\Temp\\processing926e3fb9581345ea92a61a65c9b211c4\\38d16b8c0e654334921f0a6a2ca622a1\\SHADE.sdat"

C:\\OSGEO4~1\\bin>set SAGA=C:\\Users\\qgis\\Desktop\\saga231

C:\\OSGEO4~1\\bin>set SAGA_MLB=C:\\Users\\qgis\\Desktop\\saga231\\modules

C:\\OSGEO4~1\\bin>PATH=C:\\OSGEO4~1\\apps\\qgis\\bin;C:\\OSGEO4~1\\apps\\Python27\\Scripts;C:\\OSGEO4~1\\bin;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\WBem;C:\\OSGEO4~1\\apps\\msys\\bin;C:\\Users\\qgis\\Desktop\\saga231;C:\\Users\\qgis\\Desktop\\saga231\\modules

C:\\OSGEO4~1\\bin>saga_cmd io_gdal 0 -TRANSFORM 1 -RESAMPLING 0 -GRIDS "C:\\Users\\qgis\\AppData\\Local\\Temp\\processing926e3fb9581345ea92a61a65c9b211c4\\51bd78a192e243b9ba5d841fc68d84f8\\madeiramdt100.sgrd" -FILES "C:\\Users\\qgis\\Desktop\\data\
asters\\madeira_mdt_100.tif"
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SAGA Version: 2.3.1 (64 bit)

76 loaded tool libraries (659 tools):
- climate
- climate_tools
- contrib_perego
- db_odbc
- db_pgsql
- docs_html
- docs_pdf
- garden_3d_viewer
- garden_fractals
- garden_games
- garden_learn_to_program
- garden_webservices
- grid_analysis
- grid_calculus
- grid_calculus_bsl
- grid_filter
- grid_gridding
- grid_spline
- grid_tools
- grid_visualisation
- imagery
- imagery_classification
- imagery_isocluster
- imagery_maxent
- imagery_opencv
- imagery_photogrammetry
- imagery_segmentation
- imagery_svm
- imagery_tools
- io_esri_e00
- io_gps
- io_grid
- io_grid_image
- io_shapes
- io_shapes_dxf
- io_shapes_las
- io_table
- io_virtual
- pj_georeference
- pj_geotrans
- pj_proj4
- pointcloud_tools
- pointcloud_viewer
- shapes_grid
- shapes_lines
- shapes_points
- shapes_polygons
- shapes_tools
- shapes_transect
- sim_cellular_automata
- sim_ecosystems_hugget
- sim_erosion
- sim_fire_spreading
- sim_hydrology
- sim_ihacres
- sim_qm_of_esp
- sim_rivflow
- statistics_grid
- statistics_kriging
- statistics_points
- statistics_regression
- ta_channels
- ta_compound
- ta_hydrology
- ta_lighting
- ta_morphometry
- ta_preprocessor
- ta_profiles
- ta_slope_stability
- table_calculus
- table_tools
- terrain_analysis
- tin_tools
- tin_viewer
- toolchains
- tta_tools

type -h or --help for further information

Error: select a library

C:\\OSGEO4~1\\bin>saga_cmd ta_lighting "Analytical Hillshading" -ELEVATION "C:\\Users\\qgis\\AppData\\Local\\Temp\\processing926e3fb9581345ea92a61a65c9b211c4\\51bd78a192e243b9ba5d841fc68d84f8\\madeiramdt100.sgrd" -METHOD 0 -AZIMUTH 315 -DECLINATION 45 -EXAGGERATION 4 -SHADE "C:\\Users\\qgis\\AppData\\Local\\Temp\\processing926e3fb9581345ea92a61a65c9b211c4\\38d16b8c0e654334921f0a6a2ca622a1\\SHADE.sdat"
____________________________

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____________________________

SAGA Version: 2.3.1 (64 bit)

____________________________
library path: C:\\Users\\qgis\\Desktop\\saga231\\modules\\
library name: ta_lighting
library : Lighting, Visibility
tool : Analytical Hillshading
author : O.Conrad, V.Wichmann (c) 2003-2013
processors : 2 [2]
____________________________

Load grid: C:\\Users\\qgis\\AppData\\Local\\Temp\\processing926e3fb9581345ea92a61a65c9b211c4\\51bd78a192e243b9ba5d841fc68d84f8\\madeiramdt100.sgrd...
failed

Usage: saga_cmd ta_lighting 0 [-ELEVATION ] [-SHADE ] [-METHOD ] [-AZIMUTH ] [-DECLINATION ] [-EXAGGERATION ] [-SHADOW ] [-NDIRS ] [-RADIUS ]
-ELEVATION: Elevation
Grid (input)
-SHADE: Analytical Hillshading
Grid (output)
-METHOD: Shading Method
Choice
Available Choices:
[0] Standard
[1] Standard (max. 90Degree)
[2] Combined Shading
[3] Ray Tracing
[4] Ambient Occlusion
Default: 0
-AZIMUTH: Azimuth [Degree]
Floating point
Default: 315.000000
-DECLINATION: Height [Degree]
Floating point
Default: 45.000000
-EXAGGERATION: Exaggeration
Floating point
Default: 4.000000
-SHADOW: Shadow
Choice
Available Choices:
[0] slim
[1] fat
Default: 1
-NDIRS: Number of Directions
Integer
Minimum: 2
Default: 8
-RADIUS: Search Radius
Floating point
Minimum: 0.001000
Default: 10.000000
Error: input file [C:\\Users\\qgis\\AppData\\Local\\Temp\\processing926e3fb9581345ea92a61a65c9b211c4\\51bd78a192e243b9ba5d841fc68d84f8\\madeiramdt100.sgrd]
Error: Elevation

C:\\OSGEO4~1\\bin>exit
Converting outputs
Loading resulting layers

The following layers were not correctly generated.
Analytical Hillshading
You can check the log messages to find more information about the execution of the algorithm
</pre> ---