mail2vajram wrote:
Here i am using C# library for GDal, when i reading the YllCorner value using
GeoTranform method i got that Yll corner value wrong.

Eg:  yllcorner 1648000  ..........>original

       yllcorner 1747000 ...........>Gdal

Why, this much difference i got......

mail2vajram,

You don't show how you are trying to get the yllcorner from
GetGeoTransform().  I will note that the origin provided in the
geotransform is the top left, not lower left corner.

You might also need to provide the file header for further comment.
I don't know if the difference is a top-to-bottom distance, or just
half a pixel - in which case it is related to the center vs. corner
of pixel origin issue.

Best regardes,
--
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I set the clouds in motion - turn up   | Frank Warmerdam, warmer...@pobox.com
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and watch the world go round - Rush    | Geospatial Programmer for Rent

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