[C++-sig] datastructure to numpy and back

Georg Holzmann grh at mur.at
Tue Oct 16 17:45:49 CEST 2007

Hallo again !

I still did not get it working with boost (after quite some reading and 
searching) ... aren't there any examples out there how to do that ?

Or maybe is it better to use SWIG or directly the NumPy C-API for that ?


Georg Holzmann schrieb:
> Hallo!
> I know this was discussed quite some times, but I did find that many 
> workarounds and not really a common way how to do that with Boost.Python 
> ... so I am a little bit confused ...
> My problem: I have a class with some (big) custom C++ matrix types and I 
> want to write some getters/setters for them to/from numpy arrays, where 
> I want to avoid copies of the data.
> So is there a common way to do this ?
> (e.g. num_util from 
> http://www.eos.ubc.ca/research/clouds/software/pythonlibs/num_util/num_util_release2/Readme.html 
> ?)
> Or can maybe someone link me to some docu or examples which already did 
> this ? (it must be quite common ...)
> Many thanks for any hint,
> LG
> Georg
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