[gdal-dev] Clipping an image via Python API problems

[Even Rouault]

Le lundi 28 novembre 2011 07:44:26, Chaitanya kumar CH a écrit :
> I should have said that you need to copy all bands 'individually'.

Well, ReadAsArary() and WriteArray() also exist at the dataset level and will 
read/write all bands.

See :

$ python
Python 2.6.5 (r265:79063, Apr 16 2010, 13:57:41) 
[GCC 4.4.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from osgeo import gdal
d = gdal.Open('../autotest/gcore/data/rgbsmall.tif')
>>> d.ReadAsArray()
array([[[  0,   0,   0, ...,  84,  89,  92],
        [  0,   0,   0, ..., 104,  94,  90],
        [  0,   0,   0, ...,  95,  96,  81],
        ..., 
        [  0,   0,   1, ...,  18,  43,  34],
        [  0,   0,   0, ...,  18,  22,  21],
        [  0,   0,   0, ...,  12,  15,  14]],

       [[  0,   0,   0, ..., 124, 138, 146],
        [  0,   0,   0, ..., 145, 141, 139],
        [  0,   0,   0, ..., 136, 140, 125],
        ..., 
        [  0,   0,   1, ...,  46,  67,  54],
        [  0,   0,   0, ...,  43,  42,  39],
        [  0,   0,   0, ...,  37,  35,  32]],

       [[  0,   0,   0, ...,  28,  31,  34],
        [  0,   0,   0, ...,  49,  39,  32],
        [  0,   0,   0, ...,  42,  43,  27],
        ..., 
        [  0,   0,   1, ...,  50,  71,  61],
        [  0,   0,   0, ...,  48,  51,  51],
        [  0,   0,   0, ...,  44,  46,  46]]], dtype=uint8)