[Gdal-dev] Imagine overviews option

[Frank Warmerdam]

On 9/16/05, Ken Boss <Ken.Boss at dnr.state.mn.us> wrote:
> Frank et al--
> 
> Erdas Imagine itself supports the creation and use of .rrd files alongside any raster format that Imagine supports.  I think GDAL/Imagine users would benefit from an  overview type selection mechanism that is not tied to a particular raster file format, perhaps by extending the BuildOverviews method as you've suggested.

Ken,

In fact, it seems that Peng feels the same, and is holding my nose
to the grindstone on my long ago promise to supporting reading and
writing Imagine/ArcGIS compatible .aux/.rrd files.  I will now return
to my work on gdaldefaultoverview.cpp to try and handle the 
.ovr / .rrd dicotomy gracefully.   This capability *will* be in the
GDAL/OGR 1.3.1 release. 

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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