[Gdal-dev] How to get NITF image resolution

[Frank Warmerdam]

Alison Luo wrote:
> I need to get the resolution of NITF images. I read
> through all the nitf-related code in GDAL source code,
> but I do not seem to be able to find the code to get
> NITF image resolution.

Alison,

The GDALGetGeoTransform() function or GetGeoTransform() method on
the GDALDataset will return an affine transformation mapping pixel/line
coordinates to georeferenced coordinates.  For unrotated (north up)
images the pixel width will be the second entry in this array, and
the pixel height will be the negative of the sixth element of this
array.

Best regards,
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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