[gdal-dev] Python Bindings - ReadArray direct to ctypes array?

Chris Barker chris.barker at noaa.gov
Sun Jul 29 14:20:48 PDT 2012

On Fri, Jul 27, 2012 at 8:40 PM, Jay L. <jzl5325 at psu.edu> wrote:

> Currently the workflow is to open the dataset and grab the first band, as
> usual. I then read in the array, create an empty ctype array, and use
> memmove to move the numpy array to my ctypes array.

numpy comes with some utilities for working with ctypes and numpy
arrays -- you certainly should be able to do that without a copy. Poke
around in the numyp source, docs, and mailing list.

If I understand the docs right, this makes it really simple:


note that there is a lot of great stuff going on with numpy and
Cython doing this sort of stuff -- numpy arrays may be a good bet anyway.

You might also want to check out geo-Dango -- I think they've got a
pretty complete wrapper for GDAL with ctypes



Christopher Barker, Ph.D.

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