Package org.jbox2d.dynamics.joints
Class FrictionJoint
java.lang.Object
org.jbox2d.dynamics.joints.Joint
org.jbox2d.dynamics.joints.FrictionJoint
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Field Summary
FieldsModifier and TypeFieldDescriptionprivate float
private float
private int
private int
private float
private float
private float
private float
private final Vec2
private final Mat22
private final Vec2
private final Vec2
private final Vec2
private final Vec2
private float
private float
private final Vec2
private final Vec2
Fields inherited from class org.jbox2d.dynamics.joints.Joint
m_bodyA, m_bodyB, m_edgeA, m_edgeB, m_islandFlag, m_next, m_prev, m_userData, pool
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Constructor Summary
ConstructorsModifierConstructorDescriptionprotected
FrictionJoint
(IWorldPool argWorldPool, FrictionJointDef def) -
Method Summary
Modifier and TypeMethodDescriptionvoid
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.float
float
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
void
setMaxForce
(float force) void
setMaxTorque
(float torque) boolean
This returns true if the position errors are within tolerance.void
Methods inherited from class org.jbox2d.dynamics.joints.Joint
create, destroy, destructor, getBodyA, getBodyB, getCollideConnected, getNext, getType, getUserData, isActive, setUserData
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Field Details
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m_localAnchorA
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m_localAnchorB
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m_linearImpulse
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m_angularImpulse
private float m_angularImpulse -
m_maxForce
private float m_maxForce -
m_maxTorque
private float m_maxTorque -
m_indexA
private int m_indexA -
m_indexB
private int m_indexB -
m_rA
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m_rB
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m_localCenterA
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m_localCenterB
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m_invMassA
private float m_invMassA -
m_invMassB
private float m_invMassB -
m_invIA
private float m_invIA -
m_invIB
private float m_invIB -
m_linearMass
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m_angularMass
private float m_angularMass
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Constructor Details
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FrictionJoint
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Method Details
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getLocalAnchorA
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getLocalAnchorB
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getAnchorA
Description copied from class:Joint
get the anchor point on bodyA in world coordinates.- Specified by:
getAnchorA
in classJoint
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getAnchorB
Description copied from class:Joint
get the anchor point on bodyB in world coordinates.- Specified by:
getAnchorB
in classJoint
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getReactionForce
Description copied from class:Joint
get the reaction force on body2 at the joint anchor in Newtons.- Specified by:
getReactionForce
in classJoint
- Parameters:
inv_dt
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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 classJoint
- Parameters:
inv_dt
-- Returns:
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setMaxForce
public void setMaxForce(float force) -
getMaxForce
public float getMaxForce() -
setMaxTorque
public void setMaxTorque(float torque) -
getMaxTorque
public float getMaxTorque() -
initVelocityConstraints
- Specified by:
initVelocityConstraints
in classJoint
- See Also:
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solveVelocityConstraints
- Specified by:
solveVelocityConstraints
in classJoint
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solvePositionConstraints
Description copied from class:Joint
This returns true if the position errors are within tolerance.- Specified by:
solvePositionConstraints
in classJoint
- Returns:
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