[gdal-dev] Trouble with French Ecw map

Nicolas Ragg ragg.gdal at free.fr
Thu Apr 16 16:32:01 PDT 2015


On 15/04/2015 07:59, Jean-Claude Repetto wrote:
> Please run the command : gdalinfo -mdd ECW file.ecw
> What are the metadata (ECW) :
> PROJ= ?
> DATUM= ?
>
> Jean-Claude
>
Still looking into this problem, i've run gdalinfo with -mdd VERSION, 
output is :
Metadata:
   COLORSPACE=RGB
   COMPRESSION_RATE_TARGET=10
   VERSION=2

Looking on http://www.gdal.org/frmt_ecw.html, i may be facing backwards 
compatibility issue with a V2 file, something i was not expecting since 
V5.x ECW plugin is supposed to be backward compatible.
Using gdal 1.7.2 i have no mdd at all, and no srs reported but somehow 
the map coordinates are good when importing it in Worldwind.
Could it be related to the plugin compatibility issue related there 
https://trac.osgeo.org/gdal/ticket/4635 ?








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