Re: [Pyode-user] Regression: collision detection broken in HEAD

[Ethan Glasser-C. <gl...@cs...>]

Daniele Varrazzo wrote:
> It is a fairly standard 32 bit Ubuntu Karmic, using the ode library
> packaged with the OS (packages libode-dev (2:0.11-4), libode1
> (2:0.11-4)). Python version 2.6 (the system version). Pyrex version
> 0.9.8.5.
> 
> I built the module regularly (python setup.py build/install), against
> the correct library (checked with ldd). Tutorials 1 and 2 run
> perfectly, in 3 the pieces fall without meeting the plane. I also made
> the explosion happen earlier to make the falling pieces hit each
> other, and there is no contact between them either. A print in the
> callback function confirms it gets never called.
> 
> Tell me if you need other details. Thank you very much for your efforts.

I'm kind of grasping at straws here, since I can't reproduce it. I've
tried on my 64-bit Karmic machine, running the same packages you are,
and now I just tried on my 32-bit Debian machine (which is sorta running
whatever). The only thing that strikes me as likely to be different is
that instead of doing "python setup.py install", I ran:

PYTHONPATH=build/lib.linux-i686-2.5/ python examples/tutorial3.py

(Or whatever -- substitute the correct build directory on your machine.)
I guess one thing I'd suggest is doing:

import ode
print ode.__file__

to make sure you're running the just-built version. I suspect you are --
if you weren't, I think you'd probably be seeing more severe problems.

If that doesn't help, I'd start putting print statements in
Space.collide (defined in src/space.pyx) to make sure that was getting
called successfully, and if that didn't help I'd do the same thing in
the ODE library (which I don't know that well -- sorry).

Ethan