I'm trying to use GDAL to set the geotransform of a new raster that I've created by following the steps outlined in the GDAL API Tutorial.
# create the new dataset driver = gdal.GetDriverByName('GTiff') dataset = driver.Create('test_gt.tif', 60, 60, 1, gdal.GDT_Float32) # check the default geotransform print dataset.GetGeoTransform() # prints (0, 1, 0, 0, 0, 1) # try to alter the geotransform and ensure that it has been set dataset.SetGeoTransform([0,1,0,0,0,-1]) print dataset.GetGeoTransform() # prints (0, 1, 0, 0, 0, -1) dataset = None # closes the dataset # Try reopening the dataset now and see if the geotransform has been set. ds = gdal.Open('test_gt.tif') print ds.GetGeoTransform() #prints (0, 1, 0, 0, 0, 1)
The dataset.SetGeoTransform() documentation says that this should set the affine transformation coefficients (which, according to the
dataset.GetGeoTransform() documentation is set to
[0, 1, 0, 0, 0, 1] by default), but as you can see from my above code, the changes don't seem to actually take effect when I try to change them.
I've even tried flushing the new raster's cache to disk by
dataset.FlushCache(), but this doesn't seem to save the changes either.
How can I have GDAL actually save the altered geotransform to disk?
I'm using GDAL version 1.6.3 installed from PyPI (via the command-line tool