PD: [GRASS-user] isoareas from DEM data

[Maciej Tomaszczyk]

after r.contour use v.type to change line to boundary
best 
maciej

Maciej Tomaszczyk
Polish Geological Institute
Geological Mapping Department



-----Wiadomość oryginalna-----
Od: grassuser-bounces at grass.itc.it w imieniu Stefan Eriksson
Wysłano: Pt 2007-11-02 19:11
Do: Moritz Lennert
DW: grassuser at grass.itc.it
Temat: Re: [GRASS-user] isoareas from DEM data
 
On Nov 2, 2007 1:48 AM, Moritz Lennert <mlennert at club.worldonline.be> wrote:
> On Fri, November 2, 2007 00:45, Stefan Eriksson wrote:
> > Hello,
> >
> > I am absolutely new to GRASS, so please forgive me if my questions are
> > a bit naive.
> >
> > I am trying to create isoareas from DEM data.
> > So far I have managed to create the polygons from DEM data by
> >> r.mapcalc "newElev2 = round(elevation.dem / 100) * 100"
> >  100%
> >> r.to.vect
>
> Have you tried r.contour ?

Yes, but I want polygons rather than lines as output. r.contour only
produce lines, does it not?

// Stefan

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