[gdal-dev] NODATA value in an array from RasterIO

Limei Ran lran at unc.edu
Tue Mar 25 14:39:15 EDT 2008


Hi:

I am reading a region out from a band using RaterIO into an array.  
What are NODATA cell values in the array?  Are they 0 or something 
else?  Can I modify the array and write back to the image.  How do I 
keep NODATA values in the array to be on the image after writing?

Thanks,

Limei









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