Constraints defined and used by the PlayRho library. More...
Modules | |
| Joint Classes | |
| The user creatable classes that specify constraints on one or more Body instances. | |
Classes | |
| class | playrho::d2::Contact |
| A potential contact between the children of two Fixture objects. More... | |
Detailed Description
Constraints defined and used by the PlayRho library.
Constraints remove degrees of freedom from bodies. A 2D body has 3 degrees of freedom: two translation coordinates and one rotation coordinate. If we take a body and pin it to the wall (like a pendulum) we have constrained the body to the wall. At this point the body can only rotate about the pin, so the constraint has removed 2 degrees of freedom.
