[FWTools] Lat/Lon coordinates from NTIF?

[Cook, Eric S.]

Hi all, newbie here..  

 

I've just started using GDAL and would like to get geospatial reference
corner points in degrees latitude and degrees longitude values of my
NITF image.  I'm using C# and the example code snippets are useful but
are a bit confusing to me.  My first pass attempt to get corner points
from the dataset was to use the dataset.GetGeoTransform() values and
then put them into the following formulas:

       double Xgeo = geoTransform[0] + Xpixel * geoTransform[1] + Yline
* geoTransform[2];

       double Ygeo = geoTransform[3] + Xpixel * geoTransform[4] + Yline
* geoTransform[5];

But this resulted in values that looked more like meters or something.
Can anybody point me in the right direction?  Thanks.

 

Sincerely,
Eric Cook
The Mitre Corporation
( 781-271-7154
* escook at mitre.org <mailto:escook at mitre.org> 

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