PackageBox2D.Dynamics.Joints
Classpublic class b2FrictionJoint
Inheritanceb2FrictionJoint Inheritance b2Joint
Sourceb2FrictionJoint.as

Friction joint. This is used for top-down friction. It provides 2D translational friction and angular friction.

See also

b2FrictionJointDef

Public Properties
 PropertyDefined by
  m_angularMass : Number
b2FrictionJoint
  m_linearMass : b2Mat22
b2FrictionJoint
Public Methods
 MethodDefined by
  
GetAnchorA():b2Vec2
Get the anchor point on bodyA in world coordinates.
b2FrictionJoint
  
GetAnchorB():b2Vec2
Get the anchor point on bodyB in world coordinates.
b2FrictionJoint
 Inherited
GetBodyA():b2Body
Get the first body attached to this joint.
b2Joint
 Inherited
GetBodyB():b2Body
Get the second body attached to this joint.
b2Joint
  
GetMaxForce():Number
b2FrictionJoint
  
GetMaxTorque():Number
b2FrictionJoint
 Inherited
GetNext():b2Joint
Get the next joint the world joint list.
b2Joint
  
GetReactionForce(inv_dt:Number):b2Vec2
Get the reaction force on body2 at the joint anchor in Newtons.
b2FrictionJoint
  
GetReactionTorque(inv_dt:Number):Number
Get the reaction torque on body2 in N.
b2FrictionJoint
 Inherited
GetType():int
Get the type of the concrete joint.
b2Joint
 Inherited
GetUserData():*
Get the user data pointer.
b2Joint
 Inherited
IsActive():Boolean
Short-cut function to determine if either body is inactive.
b2Joint
  
SetMaxForce(force:Number):void
b2FrictionJoint
  
SetMaxTorque(torque:Number):void
b2FrictionJoint
 Inherited
SetUserData(data:*):void
Set the user data pointer.
b2Joint
Property detail
m_angularMassproperty
public var m_angularMass:Number
m_linearMassproperty 
public var m_linearMass:b2Mat22
Method detail
GetAnchorA()method
public override function GetAnchorA():b2Vec2

Get the anchor point on bodyA in world coordinates.

Returns
b2Vec2
GetAnchorB()method 
public override function GetAnchorB():b2Vec2

Get the anchor point on bodyB in world coordinates.

Returns
b2Vec2
GetMaxForce()method 
public function GetMaxForce():Number

Returns
Number
GetMaxTorque()method 
public function GetMaxTorque():Number

Returns
Number
GetReactionForce()method 
public override function GetReactionForce(inv_dt:Number):b2Vec2

Get the reaction force on body2 at the joint anchor in Newtons.

Parameters
inv_dt:Number

Returns
b2Vec2
GetReactionTorque()method 
public override function GetReactionTorque(inv_dt:Number):Number

Get the reaction torque on body2 in N.

Parameters
inv_dt:Number

Returns
Number
SetMaxForce()method 
public function SetMaxForce(force:Number):voidParameters
force:Number
SetMaxTorque()method 
public function SetMaxTorque(torque:Number):voidParameters
torque:Number



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