[Gdal-dev] HDF Georeference

[wlx]

Hi,
    My gdal is the latest cvs version(1.2.5),and my hdf4 dirver is the
second way that you mentioned, if this new hdf4 driver can not support
ASTEr L1b's georeference?
    
     Best regards,

LiangXu Wang

> On 12/02/2004 07:16:01 AM, wlx wrote:
> > Hi all,
> >      In the hdf4 format
> > 
> homepage(http://www.remotesensing.org/gdal/frmt_hdf4.html),it 
> is sayed 
> > that gdal can support ASTER L1B data's georeference.
> >     When I use gdal_translate utility to translate a ASTER's 
> > subdataset to a geotiff file,I find the geotiff file 
> include nothing 
> > about georefence.
> >
> 
> I do know that the HDF driver has been redone and works 
> differently in recent GDAL versions
> 
> the old driver was
>    HDF4_SDS:ASTER_L1B:
> 
> 
> checking with gdalinfo recent GDAL version
>    HDF4_EOS:EOS_SWATH:
> is the driver for ASTER L1B file
> 
> revert back to
>   OpenEV_FW 1.7.2  (which ises the HDF4_SDS dirver) or 
> download HEG from
>   http://eosweb.larc.nasa.gov/PRODOCS/misr/tools/geotiff_tool.html
>   and run HEG on the HDF to produce georegistered bands as tiffs.
> 
> 
> I have not had an opportunity to compare the results of  
> HEGtools and  the older HDF_SDS driver.
> 
> If you get a chance to compare them
>    is there any pixel shift between the two methods or are 
> they functionally equivalent.
> 
> 
> C.
> 
> carl anderson
> GIS Manager
> Fulton County Georgia
> 
> 
>