Class FrictionJoint

java.lang.Object

org.jbox2d.dynamics.joints.Joint

org.jbox2d.dynamics.joints.FrictionJoint

public class FrictionJoint
extends Joint

Author:

Daniel Murphy

Field Summary

Fields inherited from class Joint

m_bodyA, m_bodyB, m_edgeA, m_edgeB, m_islandFlag, m_next, m_prev, m_userData, pool

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	FrictionJoint(IWorldPool argWorldPool, FrictionJointDef def)

Method Summary

Modifier and Type	Method	Description
void	getAnchorA(Vec2 argOut)	get the anchor point on bodyA in world coordinates.
void	getAnchorB(Vec2 argOut)	get the anchor point on bodyB in world coordinates.
Vec2	getLocalAnchorA()
Vec2	getLocalAnchorB()
float	getMaxForce()
float	getMaxTorque()
void	getReactionForce(float inv_dt, Vec2 argOut)	get the reaction force on body2 at the joint anchor in Newtons.
float	getReactionTorque(float inv_dt)	get the reaction torque on body2 in N*m.
void	initVelocityConstraints(SolverData data)
void	setMaxForce(float force)
void	setMaxTorque(float torque)
boolean	solvePositionConstraints(SolverData data)	This returns true if the position errors are within tolerance.
void	solveVelocityConstraints(SolverData data)

Methods inherited from class Joint

create, destroy, destructor, getBodyA, getBodyB, getCollideConnected, getNext, getType, getUserData, isActive, setUserData

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

FrictionJoint

protected FrictionJoint(IWorldPool argWorldPool,
 FrictionJointDef def)

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:

setMaxForce

public void setMaxForce(float force)

getMaxForce

public float getMaxForce()

setMaxTorque

public void setMaxTorque(float torque)

getMaxTorque

public float getMaxTorque()

initVelocityConstraints

public void initVelocityConstraints(SolverData data)

Specified by:

initVelocityConstraints in class Joint

See Also:

• invalid reference

  org.jbox2d.dynamics.joints.Joint#initVelocityConstraints(org.jbox2d.dynamics.TimeStep)

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: