[Numpy-discussion] ?Loading double and cdouble in an PyArrayObject?

Norman Shelley Norman.Shelley at motorola.com
Tue Oct 7 09:26:13 CDT 2003


Francesc Alted wrote:

> A Dimarts 07 Octubre 2003 17:58, Norman Shelley va escriure:
> > How do I take data from a double array or a complex array as defined below
> > and initialize a Numeric array and load it appropriately?
> >
> > struct complex {
> >   double real;
> >   double imag;
> > } complex;
> >
> > complex cdata[100];
> > double *data[100];
> > PyArrayObject *array;
>
> By reading the manual (page 65), I guess the best would be something like:
>
>   arr = PyArray_FromDimsAndData(1, 100, PyArray_CDOUBLE, cdata)

If cdata is never to be freed, e.g. a Fortran COMMON block, then that is the
case.
I with to use PyArray_FromDims() and then load it up with data

I am assuming this may work for doubles (?)
aPyArrayObject = PyArray_FromDims(1, numData, PyArray_DOUBLE)
for (i = 0; i < numData; i++) aPyArrayObject.data[i] = doubledata[i];

But then I wondered how to load for COMPLEX?


>
>
> Cheers,
>
> --
> Francesc Alted





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