[GRASS-user] stream extraction from ASTER dem

[Milton Cezar Ribeiro]

Hi Hamish,

I will try without the memory saving flag...
Computer with more memory? The mine is 6Gb (!), and I tryed with 1/4 of the
image (5000x3000) but still get error. Any other hint are welcome.

cheers

milton

2009/9/28 Hamish <hamish_b at yahoo.com>

> try a smaller region
> (or try on a computer with more memory)
> (yes, I saw the seg part, hey try without that memory saving flag too!)
>
>
> H
>
>
> --- On Mon, 28/9/09, Markus Metz <markus.metz.giswork at googlemail.com>
> wrote:
>
> > From: Markus Metz <markus.metz.giswork at googlemail.com>
> > Subject: Re: [GRASS-user] stream extraction from ASTER dem
> > To: "Milton Cezar Ribeiro" <miltinho.astronauta at gmail.com>
> > Cc: "grass-user grass-user" <grass-user at lists.osgeo.org>
> > Received: Monday, 28 September, 2009, 7:14 PM
>  >
> > Milton Cezar Ribeiro wrote:
> > > Dear all,
> > >  I have a DEM with dimensions 10,000 x 6,000. Now
> > I need to
> > > extract all the stream or drainage, as well as
> > generated some
> > > other stream/flow related features like flow
> > direction,
> > > stream lenght, etc.
> > >  I work on a computer with 6Gb under Vista, and
> > the grass
> > > version is the OSGeo4W one. But when I try to run the
> > command
> > > below I get one error relate to r.watershed.seg.exe:
> > >  r.watershed elevation=aster_dem
> > stream=aster_dem_stream threshold=150 -m memory=2048
> > >  Any idea of how to solve that?
> > Maybe it is the Vista UAC problem, there were recently
> > other posts related to this.
> >
> > Just a guess,
> >
> > Markus M
> >
> > _______________________________________________
> > grass-user mailing list
> > grass-user at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/grass-user
> >
>
>
>
>
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