Nikos Alexandris wrote: > in grass64 with snapping=0.1: > time v.in.ogr dsn=TM_WORLD_BORDERS-0.3.shp out=tm_world_borders_03_snapped_01 > snap=0.1
TM_WORLD_BORDERS-0.3 is dirty but not that dirty, snap=0.000001 is in this case a large enough snapping threshold. > > --%<--- > 3775 input polygons > Total area: 1.480245e+14 (4647 areas) > Overlapping area: 0.000000e+00 (0 areas) > Area without category: 1.139301e+12 (1628 areas) > > real 0m52.400s > user 0m49.730s > sys 0m1.250s > -->%--- > > in grass70 with snapping=0.1: > time v.in.ogr dsn=TM_WORLD_BORDERS-0.3.shp > out=tm_world_borders_03_grass70_snapped_01 snap=0.1 > > --%<--- > 3775 input polygons > Total area: 1.37653E+14 (4375 areas) > Overlapping area: 0 (0 areas) > Area without category: 1.11988E+12 (1475 areas) > > real 0m53.130s > user 0m51.160s > sys 0m1.240s > -->%--- > Slight change in snapping in grass7: a vertex is snapped to the closest anchor vertex, not to the first anchor vertex found which might not be the closest anchor vertex. The aim is to minimize modifications. Markus M _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user