[GRASS-user] Re: [GRASS-dev] gdal import an nodata cells

[Martin Landa]

Hi,

I am not sure if make sense to add 'null' parameter to r.in.gdal. You
can use r.null...

Martin

2007/7/19, Carlos Guâno Grohmann <carlos.grohmann at gmail.com>:
> Yes, but I was thinking how to do this _at once_ ,in the import process.
>
> C
>
>
>
> On 7/19/07, WolfgangZ <wollez at gmx.net> wrote:
> > Carlos "Guâno" Grohmann schrieb:
> > > I just imported a DEM that was sent to to in Erdas IMG format (HFA),
> > > with r.in.gdal, and after importing I had to use r.mapcalc to make the
> > > NODATA cells -- which were tagged as -32768 -- became NULL.
> > >
> > > I was just wondering if there is a way to do this automatically? can I
> > > pass the -32768 value as an option to r.in.gdal so the cell will be
> > > imported as null?
> > >
> > > cheers
> > >
> > > Carlos
> > >
> >
> > you can use r.null to set the null flag.
> >
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>
>
> --
> +-----------------------------------------------------------+
>               Carlos Henrique Grohmann - Guano
>   Visiting Researcher at Kingston University London - UK
>   Geologist M.Sc  - Doctorate Student at IGc-USP - Brazil
> Linux User #89721  - carlos dot grohmann at gmail dot com
> +-----------------------------------------------------------+
> _________________
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-- 
Martin Landa <landa.martin at gmail.com> * http://gama.fsv.cvut.cz/~landa *