Class WheelJoint

java.lang.Object
org.jbox2d.dynamics.joints.Joint
org.jbox2d.dynamics.joints.WheelJoint
public class WheelJoint extends Joint
A wheel joint. This joint provides two degrees of freedom: translation along an axis fixed in bodyA and rotation in the plane. You can use a joint limit to restrict the range of motion and a joint motor to drive the rotation or to model rotational friction. This joint is designed for vehicle suspensions.
Author:
Daniel Murphy

  • Constructor Details

  • Method Details

    • getLocalAnchorA

      public Vec2 getLocalAnchorA()

    • getLocalAnchorB

      public Vec2 getLocalAnchorB()

    • getAnchorA

      public void getAnchorA(Vec2 argOut)
      Description copied from class: Joint
      get the anchor point on bodyA in world coordinates.
      Specified by:
      getAnchorA in class Joint

    • getAnchorB

      public void getAnchorB(Vec2 argOut)
      Description copied from class: Joint
      get the anchor point on bodyB in world coordinates.
      Specified by:
      getAnchorB in class Joint

    • getReactionForce

      public void getReactionForce(float inv_dt, Vec2 argOut)
      Description copied from class: Joint
      get the reaction force on body2 at the joint anchor in Newtons.
      Specified by:
      getReactionForce in class Joint
      Parameters:
      inv_dt -

    • getReactionTorque

      public float getReactionTorque(float inv_dt)
      Description copied from class: Joint
      get the reaction torque on body2 in N*m.
      Specified by:
      getReactionTorque in class Joint
      Parameters:
      inv_dt -
      Returns:

    • getJointTranslation

      public float getJointTranslation()

    • getLocalAxisA

      public Vec2 getLocalAxisA()
      For serialization

    • getJointSpeed

      public float getJointSpeed()

    • isMotorEnabled

      public boolean isMotorEnabled()

    • enableMotor

      public void enableMotor(boolean flag)

    • setMotorSpeed

      public void setMotorSpeed(float speed)

    • getMotorSpeed

      public float getMotorSpeed()

    • getMaxMotorTorque

      public float getMaxMotorTorque()

    • setMaxMotorTorque

      public void setMaxMotorTorque(float torque)

    • getMotorTorque

      public float getMotorTorque(float inv_dt)

    • setSpringFrequencyHz

      public void setSpringFrequencyHz(float hz)

    • getSpringFrequencyHz

      public float getSpringFrequencyHz()

    • setSpringDampingRatio

      public void setSpringDampingRatio(float ratio)

    • getSpringDampingRatio

      public float getSpringDampingRatio()

    • initVelocityConstraints

      public void initVelocityConstraints(SolverData data)
      Specified by:
      initVelocityConstraints in class Joint

    • solveVelocityConstraints

      public void solveVelocityConstraints(SolverData data)
      Specified by:
      solveVelocityConstraints in class Joint

    • solvePositionConstraints

      public boolean solvePositionConstraints(SolverData data)
      Description copied from class: Joint
      This returns true if the position errors are within tolerance.
      Specified by:
      solvePositionConstraints in class Joint
      Returns: