Overriding GeoTIFF projection with world file

[Frank Warmerdam]

Rahkonen Jukka wrote:
>> 3) well, I'm sure there are other methods.
> 
> How about trying to motivate some clever developer to create the option I
> mentioned... Point 1) might give me possibilities for making an investment.
> I fear this feature is not too much of general interest.

Jukka,

 From a coding point of view this is not complicated.  The function
msGetGDALGeoTransform() is used for all code needing a gdal geotransform and
it is trivial to make the GDALGetGeoTransform() call lower priority than
the world file or ows metadata.  I'm just not sure I could justify this
as a change to make to the core mapserver software.

If you wanted to keep this as a local change in your own builds of mapserver
you can change that function around somewhat.  Of course, this might
introduce a configuration management issues on your end in the long term.

I don't really need any financial motivation in this case.  It's more of a
concern that we may be introducing too many quirky behaviors in the software.
If you *really* need it I could add an undocumented PROCESSING option that
can be set on a layer and that msGetGDALGeoTransform() would use to decide
on priority of checks.

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