[GRASSLIST:3139] Re: Fw: Re: r.in.hdf with ASTER imagery

[Markus Neteler]

On Fri, Feb 15, 2002 at 09:21:55AM +0100, giorgio wrote:
> > > Hi All,
> > > I have tried to translate my ASTER images with hdf2bin and import they
> > with
> > > r.in.bin but the dimension of files is lightly greater then expected
> from
> > > r.in.bin (row x column x byte(for cell) ) so i can not import they.
> > > Someone has really imported this kind of images in Grass5 and if yes
> how?
> > > Many thanks for all suggestion.
> > > Giorgio.

Hi Giogio,

yes, like that (I use it in a script, which runs 'select_vNsds' [1] to generate
the BIN fomr HDF-EOS):

r.in.bin in=$IMPORTNAME out=$MAPNAME c=$COLS r=$ROWS bytes=1

example: 
r.in.bin in=$IMPORTNAME out=$MAPNAME n=46.051325 s=45.385511 e=11.384489\
         w=10.396242 bytes=1

Obviously the ASTER data are already roughly (shifted by more than 1000m)
geocoded. At time I am working on a automated, hopefully precise geocoding
against other data which are present in the target location (using image
matching techniques).

Hope this helps,

 Markus

[1] The select_vNsds is available at:
    ftp://acdisx.gsfc.nasa.gov/data/modis/tools/hdf/select_vNsds
    I had to update the Makefile to get it running on Linux.

> > > ----- Original Message -----
> > > From: "Markus Neteler" <neteler at itc.it>
> > > To: <grasslist at baylor.edu>
> > > Cc: "grass5 developers list" <grass5 at grass.itc.it>
> > > Sent: Sunday, January 06, 2002 12:27 PM
> > > Subject: [GRASSLIST:2867] Re: r.in.hdf with ASTER imagery
> > >
> > >
> > > > On Sun, Jan 06, 2002 at 01:12:22PM +0200, Henk Coetzee wrote:
> > > > >
> > > > > Hi
> > > > >
> > > > > I have just tried to read an ASTER image into grass5, and discovered
> > > > > that r.in.hdf is not implemented in grass5. Do I need to install
> > grass4
> > > > > as well to do this. Also, will r.in.hdf be able to read the 16-bit
> > > > > thermal bands from the hdf file.
> > > > >
> > > > > Cheers
> > > > >
> > > > > Henk Coetzee
> > > >
> > > > Hi Henk,
> > > >
> > > > sorry, to say, but I am rather sure that r.in.hdf doesn't read ASTER.
> > > > ASTER is in HDF-EOS while r.in.hdf is supporting HDF3.2.
> > > > Unless GDAL get's extended or r.in.hdf updated to the current
> > HDF/HDF-EOS
> > > > library there is no way (please tell me if I am wrong).
> > > >
> > > > But two converters are available: HDFLook
> > > > http://www-loa.univ-lille1.fr/Hdflook/hdflook_gb.html
> > > >  and HDF2bin
> > > > http://glcf.umiacs.umd.edu/library/software/
> > > >
> > > > Both programs allow to convert a HDF-EOS dataset such as ASTER/TERRA
> to
> > a
> > > > plain binary format which can be imported with r.in.bin.
> > > >
> > > > I had success like that (GRASS 5).
> > > >
> > > > Best regards
> > > >
> > > >  Markus Neteler
> > > >
> > >
> >

-- 
Markus Neteler

ITC-irst, Istituto per la Ricerca Scientifica e Tecnologica
     Project on Predictive Models for the Environment    
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