R: [Gdal-dev] trivial (?) optimization for gdal.i:GDALReadRaster( )

Norman Vine nhv at cape.com
Thu Feb 5 09:16:28 EST 2004


Alessandro Amici wrote:
> >
> > if you want to help testing you may try out the attached patch, just define
> > the environment variable GDAL_PYTHON_NUMARRAY to anything and you get
> > numarray support :).

Please note that while Numary is optimized for large vectors it is *much* slower 
< order of magnitude or so >  with small vectors.  Which may or may not be of
consequence depending on your usage.  

This suggests that which version of the Numeric Python extension is linked should 
probably remain a configurable option 

Cheers

Norman



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