Hi Frank,
sorry for the late reply but I was away for vacations.
You can get the geoTransformation from the metadata and use that to get the
lower coordinate.
The geoTransformation is similar to the content of a world file [1].
The meaning of the coefficients of the geoTransformation is available at
[2].
You can follow Larry's suggestions by leveraging on these coefficients and
you can also take a look on the BaseGDALGridCoverage2DReader (from
gt-imageio-ext-gdal) class to see how they are used to create a BBox.
Hope this helps.
Regards,
Daniele
[1]: http://en.wikipedia.org/wiki/World_file
[2]: http://www.gdal.org/gdal_datamodel.html#gdal_datamodel_dataset_gtm
On Tue, Aug 17, 2010 at 9:04 PM, Frank Conover <[email protected]>wrote:
> Hi,
> I am displaying MrSid files using the Image IO libraries in GeoTools in my
> application. I am using the classes MrSIDImageReader and
> MrSIDIIOImageMetadata but I can not find out how to get the
> lower right coordinates. I have the origin from getProjection() -
> there is probably a better way to get to that as well
>
> Can someone point me in the right direction. I'm trying not to use the
> GeoTools libraries and hope to switch to just the ImageIO libraries.
>
> Thanks,
>
> Frank
>
>
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Eng. Daniele Romagnoli
Software Engineer
GeoSolutions S.A.S.
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Italy
phone: +39 0584962313
fax: +39 0584962313
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