Very helpful: Using the flag "-r" (v.in.ogr -r) will allow you to limit the import of a vector file to the current region. You thus don't need to clip as postprocess but can do that directly when converting.
@strk: Do you know of projects/options to implement the grass topology inside PostGIS2.0?
>As I'm having to do with topology in PostGIS I'm very interested in the >concept behind GRASS regions. It's interesting that you mention a resolution >as I've been thinking for a while that a default resolution could be computed >given an extent in that the maximum error double precision floating points can >represent depend on the biggest absolute value one may ever want to use. >An extent (region) would then give you these upper limits so to be possibly >usable to compute a resolution. > >Is this anything close to what GRASS is using these regions for ? > >Yeah, I know this is probably not the right list to discuss this, but >I'm hoping grass people are also here and can help in harmonizing topologies >some more, on a neutral gameboard:)
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