[GRASS-user] v.in.ogr suddenly slow?

[Nikos Alexandris]

Nikos Alexandris:
> > > --%<---
> > > 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
> > > -->%---

in grass70 with a smaller "snap=0.0000001":

--%<---
3775 input polygons
Total area: 1.47315E+14 (3787 areas)
Overlapping area: 0 (0 areas)
Area without category: 3.98224E+11 (12 areas)

real    5m34.517s
user    5m24.200s
sys     0m2.120s
-->%---

Nikos