[GRASS-user] Re: Basin seperation from r.watershed output and thoughts on using topmodel welcome

[Hamish]

ps - top-posting reads weird


stephen wrote:
> > I would like to break up basins to that I can apply topmodel on a
> > particular drainage.  My thought is that it would be exceedingly
> > useful to be able to set the computational region based on a certain
> > subsets of watersheds.  Is there a way to do this without to much pain
> > and suffering?

r.what / d.what.rast to get a list of basin IDs
r.reclass -> r.mask -> g.region zoom=MASK  to zoom in on area of interest
+maybe: g.region -a res=[$res*2] ; g.region res=[$res]  to step back a little

?

> Also, in breaking up the watershed this will allow for things like
> total contributing area of a watershed to be calculated.  Also, things
> that maybe I haven't thought of yet.

r.report, r.stats?



Hamish