[gdal-dev] gdal + ace2-data

Even Rouault even.rouault at mines-paris.org
Fri Jan 15 15:48:40 EST 2010


 From the doc, the ACE tiles are just raw files. So this is the perfect 
use case for using VRT descriptions for raw files : 

For example, for the 30N000E.ACE file, you can create a 30N000E.VRT 
description file

<VRTDataset rasterXSize="1800" rasterYSize="1800">
  <GeoTransform>0, 0.0083333333333333332, 0.0, 45, 0.0, 
  <VRTRasterBand dataType="Int16" band="1" subClass="VRTRawRasterBand">
    <SourceFilename relativetoVRT="1">30N000E.ACE</SourceFilename>

This VRT file can then be used as a regular GDAL dataset.

After having created all the VRT for each tile, you can generate a 
global VRT file which is the mosaic of all tiles

I've created a section on my page http://even.rouault.free.fr/ with the 
source code to generate all the .VRT files for each tile. There's also a 
.ZIP with all the VRTs and the global VRT already generated.

Best regards,


Helmut Kudrnovsky a écrit :
> hi,
> has anyone information if gdal is able to read "ACE - Altimeter Corrected Elevations"-DEM-data from ESA?
> overview ace2-data
> http://www.cse.dmu.ac.uk/EAPRS/products_ace_overview.html
> 3 SECOND DATASET - Data_Format_and_Source_3S
> http://tethys.eaprs.cse.dmu.ac.uk/ACE2/docs/Data_Format_and_Source_3S.doc
> best regards
> Helmut
> ______________________________________________________
> GRATIS für alle WEB.DE-Nutzer: Die maxdome Movie-FLAT!
> Jetzt freischalten unter http://movieflat.web.de
> ------------------------------------------------------------------------
> _______________________________________________
> gdal-dev mailing list
> gdal-dev at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/gdal-dev

More information about the gdal-dev mailing list