[GRASS5] JGrass 2.0 released

Maciek Sieczka werchowyna at epf.pl
Mon Mar 6 11:37:58 EST 2006


On Sun, 5 Mar 2006 17:58:29 +0100
Andrea Antonello <andrea.antonello at gmail.com> wrote:

> Hi Maciek,
> 
> > > - enhanced native GRASS command execution
> > >      - r.proj
> > >      - r.dem2contour
> > >      - v.contour2dem
> >
> > Is there any documentation about v.contour2dem? What interpolation 
> > method does it use? 
> 
> v.contour2dem does nothing new to what advanced users like you are
> already do. It is a facility method made of the GRASS commands, i.e.
> it does things every GRASS user does to get the dem from a shapefile:
> - v.in.ogr
> - v.to.rast
> - r.surf.contour
> Therefore the same problems that you found with GRASS apply to this
> module. v.contour2dem is just an gui.

Ah, I see. Thanks for explaining this.

> > Is it able to produce a hydrologically sound DEM? 
> > (If not, does JGrass provide functionality for such purpose at all?)
> 
> It does the filling of depressions but it doesn't have algorythms for
> novalue wholes inside the basin, if that is what you mean.
> Is that what you mean?

Filling sinks is one of the things I mean. The other is drainage
enforcement. Does JGrass provide it?

Best,
Maciek

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