Re: [Pyode-user] Why don't my joints work? (PyODE with PyOgre)

[Matthias B. <ba...@ir...>]

Andrew Durdin wrote:
>         # Connect body1 with the static environment
>         j1 = ode.BallJoint(self.world)
>         j1.attach(body1, None)
>         j1.setAnchor((0, 200, 0))

I couldn't run your code as I don't have PyOgre but it seems the problem 
is you store the BallJoint in a local variable which gets deleted at the 
end of the method. And as j1 is the only reference to the BallJoint 
object the BallJoint is garbage collected when j1 is deleted which will 
also delete the underlying ODE BallJoint. To fix this you simply have to 
keep a Python reference to the joint (self.j1 = ode.BallJoint(...)).

- Matthias -