v.rast.stats is broken in GRASS 6.4.2 and 6.4.3. Here is an example of what is
happening.
GRASS 6.4.2 (Spain_utm_wgs84z30):~ > v.rast.stats -c
vector=alcala_subsect_g6@SAA2012_survey_analysis raster=srtm_p199r033_clean@dem
colprefix=elev
WARNING: Area without centroid (may be OK for island)
WARNING: Area without centroid (may be OK for island)
WARNING: Area without centroid (may be OK for island)
WARNING: Area without centroid (may be OK for island)
/Applications/GRASS/GRASS-6.4.2.app/Contents/MacOS/scripts/v.rast.stats: line
190: 15086 Abort trap: 6 v.to.rast in="$VECTORFULL"
out="${VECTOR}_$TMPNAME" layer="$GIS_OPT_LAYER" use=cat type=area --quiet
ERROR: An error occurred while converting vector to raster
If I do the same thing in GRASS 7, it does not cause this error, but numerous
vector areas are skipped. There is no apparent reason that they are skipped.
Sometimes running v.rast.stats in GRASS 7 does have an error that there are no
categories in the raster used--when there clearly ARE categories in all cells
that match up with the vector areas.
This is a serious bug in an important analytical module for GRASS
Michael
_____________________
C. Michael Barton
Visiting Scientist, Integrated Science Program
National Center for Atmospheric Research &
University Consortium for Atmospheric Research
303-497-2889 (voice)
Director, Center for Social Dynamics & Complexity
Professor of Anthropology, School of Human Evolution & Social Change
Arizona State University
www: http://www.public.asu.edu/~cmbarton, http://csdc.asu.edu
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