Re: [PyOpenGL-Users] Using glDrawElements on C-allocated data

[Gordon L. K. <gl...@uc...>]

Sorry for the excessive traffic ...

On Jun 2, 2009, at 5:35 AM, Gordon L. Kindlmann wrote:

> I agree that this is relevant, but I'm still stumped because my data
> is not coming from numpy.  Its coming from a C-allocated array that is
> being accessed via numpy.

being accessed via *ctypes*.

>  There is no .data_as for me.

This is the important point.

>  I don't quite
> understand the relationship between what .data_as returns, how
> pyopengl's use of ctypes handles that "pointer", and how to
> communicate the analogous information from array allocated in C,
> outside of numpy.
>
> If you have any spare time, I'd be interested if you can tweak the
> call to glDrawElements in
>
> http://people.cs.uchicago.edu/~glk/pglt/pgltDemo.py
>
> so that it works; I've done everything I can to make a self-contained
> but non-trivial demonstration of the problem I'm having.
>
> Thanks,
> Gordon

Gordon