AW: AW: [mapguide-users] MrSID problem: RasterIO skipped for oddwindowor buffer size

[G.E.O.-Consulting / Hans Mörschell]

Hallo Frank,

yes, my MapGuide mapextent is based on the world file because of other
datasets in that coordinate system.

If GDAL uses the internal georeferencing is there a way to control this
behaviour ????

Thanks and best regards, Hans
 

-----Ursprüngliche Nachricht-----
Von: mapguide-users-bounces at lists.osgeo.org
[mailto:mapguide-users-bounces at lists.osgeo.org] Im Auftrag von Frank
Warmerdam
Gesendet: Mittwoch, 20. Juni 2007 16:37
An: MapGuide Users Mail List
Betreff: Re: AW: [mapguide-users] MrSID problem: RasterIO skipped for
oddwindowor buffer size

G.E.O.-Consulting / Hans Mörschell wrote:
> Hallo Frank,
> 
> thanks for your information.
> 
> As you recommended I started a gdalinfo on my MrSID files with the
following
> result:
> 
> the origin MrSID file has a coordinate shift in x direction, that means
the
> image_xy_origin is for example 10000.125/306999.875, but the sdw file has
an
> image origin of 760000.125/306999.875;

Hans,

And how is your MapGuide map extent setup?  Based on the sdw extents?

I believe that GDAL will use internal origin information from the .sid
file if available, and only use the .sdw if there is no internal
georeferencing.

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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