[GRASS-user] importing L1G-data into GRASS

[Glynn Clements]

rosa wrote:

> 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?

The default colour table is "rainbow". If you want grey-scale, use
r.colors with color= grey, grey.eq, grey255, or (if you need to set
the black/white values explicitly) custom rules.

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).

-- 
Glynn Clements <glynn at gclements.plus.com>