[GRASS-user] importing L1G-data into GRASS

[Otto Dassau]

Hi,

On Mon, 6 Oct 2008 17:00:16 +0200
rosa <rosa.marzipan at gmx.de> wrote:

> dear niels,
> 
> thanks for your answer. unfortunately it didn't solve the problem. i changed 
> the color table into grey and still can't use r.composite. and without that i 
> cannot go for anything else.
> i really wonder what the problem is! the import finally worked and i do have 
> all the channels in my location... just can't work with them...
> 
> maybe somebody else knows what to do, before i have to go for erdas?!
>
> On Thu, 2 Oct 2008 22:29:23 +0100
> Glynn Clements <glynn at gclements.plus.com> wrote:
> > 
> > Also, I suspect that the preferred utility for importing such data is
> > r.in.gdal (assuming that the GDAL library includes HDF support; use
> > "gdalinfo --formats" to check).

maybe you already tested and missed it but have you tried to import your data
with r.in.gdal (using GDAL with HDF support) as suggested by Glynn?

kind regards,
 Otto

> rene
> 
> Am Montag 06 Oktober 2008 09:34:03 schrieb Niels Thevs:
> > Dear Irene,
> >
> > when you display one channel in GRASS, it is displayed by default with a
> > color scheme ranging form green to yellow or blue to red. Under Raster
> > -> Manage Map Color you can change this.
> >
> > Regarding the import of Landsat images I prefer the following way,
> > though not purely with open source software: Import your image with
> > ERDAS and save it as img-file. img is a rather wide spread satellite
> > image data format, which can be read inmediately by ERDAS, ENFI, ARC GIS
> > etc. And, img.-files can be imported without any problems into GRASS.
> > You even can build your location with a few clicks using an img file.
> >
> > I guess that in Potsdam there is an ERDAS Licence somewhere.
> >
> > Best regards
> >
> > Niels
> >
> > rosa schrieb:
> > > hello,
> > >
> > > i'm new on this list since yesterday.
> > > some postgraduates are trying to introduce GRASS in our university and so
> > > I'm writing one of the first thesis' with GRASS. Unfortunately nobody
> > > here knows the program really well.
> > >
> > > I bought a landsat scene, recieved it in hdf.L1G-format and have problems
> > > importing landsat the hdf.L1G-data into GRASS. r.in.bin does
> > > somehow work, but the channels it imports are severely damaged. instead
> > > of having the normal black/white picture, the chanels are only green and
> > > yellow and it's not possible to combine them, f.e. with r.composite.
> > >
> > > does anybody know the problem?
> > >
> > > warm regards from potsdam, germany
> > >
> > >                                 irene
> > >
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> 
> 
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