[FWTools] Size limit for opening TIFFs?

Frank Warmerdam warmerdam at pobox.com
Mon Feb 12 23:52:48 EST 2007

Jason Birch wrote:
> FrankW wrote:
>> You can do something similar with gdalwarp.
> Great, thanks.
> gdalwarp seems to take a slightly different usage than that, but I think
> I've got it.
> Is there a reason why ECW isn't supported as an output format in
> gdalwarp?


Programs like gdalwarp and gdal_merge.py that operate in patches can not
write to compressed or otherwise "write once" formats.

If you look at the "gdalinfo --format gtiff" or "gdalinfo --format ecw"
details the difference is whether the format driver supports the Create()
method (good) or just the CreateCopy() method (not so good).

Best regards,
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | President OSGeo, http://osgeo.org

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