[Qgis-developer] Processing r.mapcalc: unclear syntax

[Paolo Cavallini]

Hi all,
the interface and apparently syntax of Processing module for r.mapcalc
has been changed. I cannot figura out how to make it run. I've tried
various combinations, with no joy, see below.
Thanks for any hint.
All the best.
===
 r.mapcalc - Raster map calculator....
g.proj -c proj4="+proj=tmerc +lat_0=0 +lon_0=9 +k=0.9996 +x_0=1500000
+y_0=0 +ellps=intl +towgs84=-104.1,-49.1,-9.9,0.971,-2.917,0.714,-11.68
+units=m +no_defs"
r.in.gdal
input=/home/paolo/Scrivania/analisi/QGIS_data/processing/more_backends/dtm.tif
output=dtm --overwrite -o
g.region -a n=4924820.77 s=4678320.77 e=1771747.23103 w=1554747.23103
res=100.0
r.mapcalc expression="dtm*2" --overwrite
for r in $(g.list type=rast); do
r.out.gdal input=${r}
output=/tmp/processinge2680df22db7465e9478f93ec68fabac/cc5292235bab4755a251cba20fd0607f/${r}.tif
createopt="TFW=YES,COMPRESS=LZW" --overwrite
done
Cleaning up temporary files...
Sto avviando GRASS GIS...
Sto eseguendo
'/home/paolo/Scrivania/analisi/config/processing/grass7_batch_job.sh'...
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
Informazioni sulla proiezione aggiornate
ATTENZIONE: La verifica della proiezione verrà ignorata
Proceeding with import of 1 raster bands...
Importing raster map ...
0..3..6..9..12..15..18..21..24..27..30..33..36..39..42..45..48..51..54..57..60..63..66..69..72..75..78..81..84..87..90..93..96..99..100

syntax error, unexpected '*', expecting '('
Parse error
ERRORE: parse error
Checking GDAL data type and nodata value...
2..5..8..11..14..17..20..23..26..29..32..35..38..41..44..47..50..53..56..59..62..65..68..71..74..77..80..83..86..89..92..95..98..100

Using GDAL data type
Input raster map contains cells with NULL-value (no-data). The value
-nan will be used to represent no-data values in the input map. You can
specify a nodata value with the nodata option.
Exporting raster data to GTiff format...
ERROR 6: SetColorTable() only supported for Byte or UInt16 bands in TIFF
format.
2..5..8..11..14..17..20..23..26..29..32..35..38..41..44..47..50..53..56..59..62..65..68..71..74..77..80..83..86..89..92..95..98..100

r.out.gdal completo. File created.
Esecuzione di
'/home/paolo/Scrivania/analisi/config/processing/grass7_batch_job.sh'
terminata.
Cleaning up temporary files...

-- 
Paolo Cavallini - www.faunalia.eu
QGIS & PostGIS courses: http://www.faunalia.eu/training.html
https://www.google.com/trends/explore?date=all&geo=IT&q=qgis,arcgis