I am trying to reclassify several rasters using the r.reclass algorithm from GRASS GIS 7, but I don't get the expected output.
My input rasters have values between 0 to 1 and NaN; and I am using 2 different reclass rules:
0.0 thru 0.24999 = 0.0
0.25 thru 1 = 1.0
* = NULL
and
0.0 thru 0.099 = 0.1
0.1 thru 0.199 = 0.2
0.2 thru 0.299 = 0.3
0.3 thru 0.399 = 0.4
0.4 thru 0.499 = 0.5
0.5 thru 0.599 = 0.6
0.6 thru 0.699 = 0.7
0.7 thru 0.799 = 0.8
0.8 thru 0.899 = 0.9
0.9 thru 1 = 1
* = NULL
After the execution of the algorithm (twice using the same input raster, only changing the reclass rule), I do obtain 2 reclassed rasters, but with only 2 categories (even though the second rule should give 10 categories), and the result is the same whatever the rule used.
During the execution of the algorithm, I do not get any error message, so I don't know how to fix the issue. If that's any help, I get the following log messages during the processing, but I do not know what to make of them.
Starting GRASS GIS...
Executing '/home/user/.qgis2//processing/grass7_batch_job.sh' ...
GRASS_INFO_MESSAGE(3977,1): Default region was updated to the new projection, but if you have multiple mapsets `g.region -d` should be run in each to update the region from the default
GRASS_INFO_END(3977,1)
GRASS_INFO_MESSAGE(3977,2): Projection information updated
GRASS_INFO_END(3977,2)
GRASS_INFO_WARNING(3978,1): Over-riding projection check
GRASS_INFO_END(3978,1)
GRASS_INFO_MESSAGE(3978,2): Reading band 1 of 1...
GRASS_INFO_END(3978,2)
GRASS_INFO_MESSAGE(3978,3): r.external complete. Link to raster map created.
GRASS_INFO_END(3978,3)
0.500000 rounded up to 0
0.599000 rounded up to 0
0.600000 rounded up to 0
0.600000 rounded up to 0
0.699000 rounded up to 0
0.700000 rounded up to 0
0.700000 rounded up to 0
0.799000 rounded up to 0
0.800000 rounded up to 0
0.800000 rounded up to 0
0.899000 rounded up to 0
0.900000 rounded up to 0
0.900000 rounded up to 0
0.999000 rounded up to 0
1.000000 rounded up to 1
1.000000 rounded up to 1
1.099000 rounded up to 1
1.100000 rounded up to 1
1.100000 rounded up to 1
1.199000 rounded up to 1
1.200000 rounded up to 1
1.200000 rounded up to 1
1.299000 rounded up to 1
1.300000 rounded up to 1
1.300000 rounded up to 1
1.399000 rounded up to 1
1.400000 rounded up to 1
1.400000 rounded up to 1
GRASS_INFO_MESSAGE(3982,1): Checking GDAL data type and nodata value...
GRASS_INFO_END(3982,1)
GRASS_INFO_MESSAGE(3982,2): Using GDAL data type
GRASS_INFO_END(3982,2)
GRASS_INFO_MESSAGE(3982,3): Input raster map contains cells with NULL-value (no-data). The value 255 will be used to represent no-data values in the input map. You can specify a nodata value with the nodata option.
GRASS_INFO_END(3982,3)
GRASS_INFO_MESSAGE(3982,4): Exporting raster data to GTiff format...
GRASS_INFO_END(3982,4)
GRASS_INFO_MESSAGE(3982,5): r.out.gdal complete. File created.
GRASS_INFO_END(3982,5)
Execution of '/home/user/.qgis2//processing/grass7_batch_job.sh' finished.
Cleaning up temporary files...
Concerning the parameters used in r.reclass, the input and output rasters are TIF files, and the reclass rule is just a basic text file; and the others parameters are left to default. And I'm running QGIS 2.8.6-Wien.