[SciPy-user] StandardError: 'NoneType' object has no attribute '_o'
sandric ionut
sandricionut at yahoo.com
Wed Sep 5 12:42:47 EDT 2007
Hi:
I am using Gdal 142 version on Windows XP sp2 with Numeric-24.2, SciPy 0.5.2.1, numpy 1.0.3.1. for Python 2.4.
I want to use genericfunctions from scipy.ndimage. I have tried with the example provided in numarray users' manual release 1.5:
>>> def fnc(iline, oline):
... oline[...] = iline[:-2] + 2 * iline[1:-1] + 3 * iline[2:]
...
>>> print generic_filter1d(a, fnc, 3)
[[ 3 8 14 17]
[27 32 38 41]
[51 56 62 65]]
Everything works OK and I get the proper result, but when I try to use gdalnumeric to save the array to a image format (tif for example, or any other format supported by gdal) I get the following error:
File "C:\Python24\Lib\site-packages\gdalnumeric.py", line 123, in SaveArray
return driver.CreateCopy( filename, OpenArray(src_array,prototype) )
File "C:\Python24\Lib\site-packages\gdal.py", line 592, in CreateCopy
target_ds = _gdal.GDALCreateCopy( self._o, filename, source_ds._o,
StandardError: 'NoneType' object has no attribute '_o'
How can I save an array into a image format supported by Gdal
I don't know what I do wrong
Thank you
Ionut
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