[GRASS-user] Re: Defining Partial Drainage Basin

[Jarek Jasiewicz]

Rich Shepard pisze:
> On Wed, 10 Feb 2010, Jarek Jasiewicz wrote:
>
>> http://grass.osgeo.org/wiki/R.stream.*
>
> Jarek,
>
>   Will r.stream.stats calculate the basin area for the two 
> sub-catchments?
> I see the input parameters as the raster maps for streams, flow 
> direction,
> and DEM. Doesn't seem to calculate the areas of the two vector polygons.
>
> Thanks,
>
> Rich
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every cachmenet you can calculate using v.to.db what=area for polygons