Hi, just for the record: I tried and did not have a problem:
GRASS 7.0.0svn (latlong):~ > r.viewshed -b input=srtmv4_spain output=visPort coordinates=-3.74034324324,42.5352702703 obs_elev=9 tgt_elev=1.75 max_dist=30000 Computing events... 100% Computing visibility... 100% Writing output raster map... 100% GRASS 7.0.0svn (latlong):~ > GRASS 7.0.0svn (latlong):~ > d.mon wx0 GRASS 7.0.0svn (latlong):~ > d.rast srtmv4_spain 100% GRASS 7.0.0svn (latlong):~ > d.rast visPort 100% --> looks ok. Then I tried with a large computational region: GRASS 7.0.0svn (latlong):~ > g.region n=50 s=30 w=-20 e=20 -p projection: 3 (Latitude-Longitude) zone: 0 datum: wgs84 ellipsoid: wgs84 north: 50N south: 30N west: 20W east: 20E nsres: 0:00:30 ewres: 0:00:30 rows: 2400 cols: 4800 cells: 11520000 GRASS 7.0.0svn (latlong):~ > r.viewshed -b input=srtmv4_spain output=visPort coordinates=-3.74034324324,42.5352702703 obs_elev=9 tgt_elev=1.75 max_dist=30000 ERROR: option <output>: <visPort> exists. GRASS 7.0.0svn (latlong):~ > r.viewshed -b input=srtmv4_spain output=visPort coordinates=-3.74034324324,42.5352702703 obs_elev=9 tgt_elev=1.75 max_dist=30000 --o Intermediate files will not be deleted in case of abnormal termination. Intermediate location: /home/neteler/grassdata/latlong/neteler/.tmp/oboe.localdomain/929.0 To save space delete these files manually! Memory manager registering memory in MM_IGNORE_MEMORY_EXCEEDED mode. Start sweeping. Computing events... 100% Initialize sweepline... 100% Determine visibility... 100% Sweeping done. Saving grid to <visPort> --> also fine. I am using a 64bit Linux computer (Fedora 20), are you also on 64bit? Markus _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
