Search code examples
pythontiffgdal

Why GDAL can't open big geo Tiff?

python with anaconda .gdal version =2.2.2 libtiff version =4.09 ,Win 7 ,RAM =8G:

After update packages, I find my program doesn't work. In Anaconda prompt ,It shows ‘not definite GDAL_DATA’, So I add env variable with ‘%~dp0......\Library\share\gdal’ .Ok,It doesn't tell me ‘not definite GDAL_DATA’.But the program does not work ~~ :(

from osgeo import gdal
import numpy as np
ds = gdal.Open('G:\Soil_GridV2\Sand\SNDPPT_M_sl1_250m_ll.tif')
channel = np.array(ds.GetRasterBand(1).ReadAsArray())

and then :

 from osgeo import gdal
 import numpy as np
 ds = gdal.Open('G:\Soil_GridV2\Sand\SNDPPT_M_sl1_250m_ll.tif')
 channel = np.array(ds.GetRasterBand(1).ReadAsArray())
 Traceback (most recent call last):

 File "<ipython-input-18-343e96de9e31>", line 4, in <module>
 channel = np.array(ds.GetRasterBand(1).ReadAsArray())

 AttributeError: 'NoneType' object has no attribute 'GetRasterBand'**

So I check the Variable in spyder ，and find ds is None value.SO I guess the GDAL now broken can't open tiff? SO i try it again with a small tiff file(about 67.8 M) .successed! SO I find my GDAL can't open big Geo tiff file such as first file (about 2.15G)

So ,should I do to fix it or repalce it with other libs? :)

Solution

  • I Have solved it by update GDAL 2.2.4 with pip command. Note: Dont use conda update command ,because packages2.2.2 is not support big tiff.