[EMAIL PROTECTED] wrote: > Does that mean PyOpenGL is based on ctypes ? > PyOpenGL, the project with releases, binaries on most platforms, and lots of history is currently written in SWIG. It was originally written in pure Python C-extension code, then Tarn rewrote it using SWIG a few years ago. OpenGL-ctypes is in the PyOpenGL CVS repository, it's a ctypes re-re-implementation of the same Python API to OpenGL. My intention is that the ctypes implementation will become the 3.0.0 release when it is finished and optimised. If there's time and enough interest I'll try to produce another maintenance release for PyOpenGL-SWIG, but I'm really quite tired of spelunking through dozens of levels of C-code macro expansions, so I'm not all that interested in working with the codebase. > I thought is was using SWIG ? > And on that note: I have some (old) SWIG typemaps for numarray arrays > that I'm using for many years. > > I was always wondering how difficult it would be for me to add them > into PyOpenGL ? > Likely difficult, for the SWIG version. You might be able to *substitute* them quite readily for the Numpy mapping, but having the APIs support two different numeric systems requires some API to switch between them, which requires rewriting the (really-deeply-embedded) typemaps to support that. The difficulty of doing that kind of change is part of what prompted me to rewrite the system in Python (using ctypes). > So far I'm just using my own (one !) OpenGL function with that typemap > to draw 60000 vertices in a vector linestrip. But I would like to not > have to resort to "string conversion" when for example drawing 2D > typemaps... > > Anyway, thanks a lot for PytOpenGL - my program (image analysis > platform and microscope control) would not be possible without it. > Sebastian Haase > OpenGL-ctypes is designed with a fairly well abstracted array-handling API. Basically any array type can be registered with handlers that let you tell the system how to do basic operations; get an array's size, shape, data-type, convert to a given data-format, build an "empty" array of a given size, that kind of thing. I haven't written a numarray one yet, but it should be a fairly trivial change from the Numpy/scipy-core module.
Have fun, Mike -- ________________________________________________ Mike C. Fletcher Designer, VR Plumber, Coder http://www.vrplumber.com http://blog.vrplumber.com -- http://mail.python.org/mailman/listinfo/python-list
