How do I access GeoTransform array from gdal on the command line?

I'm using the gdal library via OSGeo for windows, and I was just wondering how to access the geotransform array for a .ecw file.

Answer

This can be found from gdalinfo, except it has three forms:

1. 
   

   If rotation / shear coefficients (adfGeoTransform[2] and adfGeoTransform[4]) are zero, the output is simplified:
   Origin = (%.15f,%.15f) % adfGeoTransform[0], adfGeoTransform[3]
Pixel Size = (%.15f,%.15f) % adfGeoTransform[1], adfGeoTransform[5]

   
   


2. 
   
   

   If rotation / shear coefficients are non-zero, the full 6-coefficients are shown:
   GeoTransform =
%.16g, %.16g, %.16g % adfGeoTransform[0], adfGeoTransform[1], adfGeoTransform[2]
%.16g, %.16g, %.16g % adfGeoTransform[3], adfGeoTransform[4], adfGeoTransform[5]

   
   


3. 
   

   If there is no GeoTransform information, then neither of the above two forms are shown.

   
   

The order of coefficients used by GDAL are important, and are documented here.