[Gdal-dev] GeoTiff tag Question

[Reinaldo Escada Chohfi]

Heloo List,

Could anyone let me know how to get the right X and Y values to go from

    Tagged_Information:
       ModelTransformationTag (4,4):
          0.50                     -9.61303488e-006 
0                4679893.77
          -7.88540724e-005 
-0.50                    0                7913730.85
          0                0                1                0
          0                0                0                1
       End_Of_Tags.

to

    Tagged_Information:
       ModelTiepointTag (2,3):
          0                0                0
          X?              Y?               0
       ModelPixelScaleTag (1,3):
          0.50           0.50            0
       End_Of_Tags.

Thanks in advance,

Reinaldo