[ODE] 2d system -- within Ode

[Ed Jones]

Hi,

Yeah, definitely interested!

I've been kind of simulating this with a couple of sliders and a hinge, 
but I imagine your way's much more efficient.

Cheers,
Ed.


psero@gmx.de wrote:

>Hello--
>
>simulating a 2d system within Ode can be
>achieved with a additional constraint type.
>
>Russell has described how to build new
>joints (http://opende.sourceforge.net/joints.pdf)
>and I found this helpful to implement a "Plane2D"
>joint type that I am using successfully in 
>an interactive media installation now.
>
>My Plane2D joint takes only one body 
>and constraints its position to be at world's z=0,
>and its z-axis to be aligned with world's z-axis.
>So 3 degrees of freedom remain (x-, y-translation
>and z-rotation). 3 Linear motors are included,
>one for each degree of freedom.
>
>The implementation is not perfect, but is works
>quite efficently.
>(I couldn't figure out how to compute
>the drift correction term ("c"-term) for the orientation.
>Should be similar to that of a simple hinge,
>but for now one has to fix the body's orientation
>in the application, after each simulation step.)
>
>Anyone interested?
>
>Peter
>
>  
>