Class WheelJointDef


  • public class WheelJointDef
    extends JointDef
    Wheel joint definition. This requires defining a line of motion using an axis and an anchor point. The definition uses local anchor points and a local axis so that the initial configuration can violate the constraint slightly. The joint translation is zero when the local anchor points coincide in world space. Using local anchors and a local axis helps when saving and loading a game.
    • Field Detail

      • localAnchorA

        public final Vec2 localAnchorA
        The local anchor point relative to body1's origin.
      • localAnchorB

        public final Vec2 localAnchorB
        The local anchor point relative to body2's origin.
      • localAxisA

        public final Vec2 localAxisA
        The local translation axis in body1.
      • enableMotor

        public boolean enableMotor
        Enable/disable the joint motor.
      • maxMotorTorque

        public float maxMotorTorque
        The maximum motor torque, usually in N-m.
      • motorSpeed

        public float motorSpeed
        The desired motor speed in radians per second.
      • frequencyHz

        public float frequencyHz
        Suspension frequency, zero indicates no suspension
      • dampingRatio

        public float dampingRatio
        Suspension damping ratio, one indicates critical damping
    • Constructor Detail

      • WheelJointDef

        public WheelJointDef()
    • Method Detail

      • initialize

        public void initialize​(Body b1,
                               Body b2,
                               Vec2 anchor,
                               Vec2 axis)