[gdal-dev] get corner coordinates from gdalopen()

[achrysochoou]

Hi,
 
I have a geotiff and i am using python to read it. I am trying to extract
the corner coordinates and store them in different variables. This is what i
have done so far,
 
dataset = gdal.Open(tif_path)
print 'zone and Hemisphere are:',
dataset.GetProjection()[26]+dataset.GetProjection()[27]+dataset.GetProjection()[28]
geotransform = dataset.GetGeoTransform()
print 'Origin = (',geotransform[0], ',',geotransform[3],')'
 
i have tried more methods with no luck (or perhaps i simply do not get
it...) such as,
print 'GetProjectionRef is: ',dataset.GetProjectionRef()
print 'GetGCPProjection is: ',dataset.GetGCPProjection()
print 'GetGCPs() is: ',dataset.GetGCPs()
 
I tried shell commands such as 'gdalinfo' which gives information about the
geotiff but i can't access the corner coordinates from the shell (or i don't
know how...). I am currently thinking of counting the pixels and calculating
the coordinates like that but it seems i should ask first before doing sth
like that...
I would like to save the corner coordinates like this,
lower_right = ..., lower_left = ..., upper_right = ..., etc
 
Any suggestions? 
Thanks in advance!
Antony
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