[ODE] Proper use of Plane2D

[Jose Marin]

Hi. 
I was studying the test_plane2d sample, when I saw the comment "hack Plane2D constraint error reduction here".

The Plane2D need this kind of adjust?

I'm designing a 2D physics-based game, and need to constrain the objects moviment in the XY axis (allways z == 0).Plane2D would be a good choice?

Or there is another good option?

Is there any other sample on how to use ODE in a 2D simulation?

I've searched the list, but haven't found a definitive answer...


       
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