PackageBox2D.Dynamics.Joints
Classpublic class b2RevoluteJoint
Inheritanceb2RevoluteJoint Inheritance b2Joint
Sourceb2RevoluteJoint.as

A revolute joint constrains to bodies to share a common point while they are free to rotate about the point. The relative rotation about the shared point is the joint angle. You can limit the relative rotation with a joint limit that specifies a lower and upper angle. You can use a motor to drive the relative rotation about the shared point. A maximum motor torque is provided so that infinite forces are not generated.

See also

b2RevoluteJointDef

Public Methods
 MethodDefined by
  
EnableLimit(flag:Boolean):void
Enable/disable the joint limit.
b2RevoluteJoint
  
EnableMotor(flag:Boolean):void
Enable/disable the joint motor.
b2RevoluteJoint
  
GetAnchor1():b2Vec2
Get the anchor point on body1 in world coordinates.
b2RevoluteJoint
  
GetAnchor2():b2Vec2
Get the anchor point on body2 in world coordinates.
b2RevoluteJoint
 Inherited
GetBody1():b2Body
Get the first body attached to this joint.
b2Joint
 Inherited
GetBody2():b2Body
Get the second body attached to this joint.
b2Joint
  
GetJointAngle():Number
Get the current joint angle in radians.
b2RevoluteJoint
  
GetJointSpeed():Number
Get the current joint angle speed in radians per second.
b2RevoluteJoint
  
GetLowerLimit():Number
Get the lower joint limit in radians.
b2RevoluteJoint
  
GetMotorSpeed():Number
Get the motor speed in radians per second.
b2RevoluteJoint
  
GetMotorTorque():Number
Get the current motor torque, usually in N-m.
b2RevoluteJoint
 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.
b2RevoluteJoint
  
GetReactionTorque(inv_dt:Number):Number
Get the reaction torque on body2.
b2RevoluteJoint
 Inherited
GetType():int
Get the type of the concrete joint.
b2Joint
  
GetUpperLimit():Number
Get the upper joint limit in radians.
b2RevoluteJoint
 Inherited
GetUserData():*
Get the user data pointer.
b2Joint
  
IsLimitEnabled():Boolean
Is the joint limit enabled?
b2RevoluteJoint
  
IsMotorEnabled():Boolean
Is the joint motor enabled?
b2RevoluteJoint
  
SetLimits(lower:Number, upper:Number):void
Set the joint limits in radians.
b2RevoluteJoint
  
SetMaxMotorTorque(torque:Number):void
Set the maximum motor torque, usually in N-m.
b2RevoluteJoint
  
SetMotorSpeed(speed:Number):void
Set the motor speed in radians per second.
b2RevoluteJoint
 Inherited
SetUserData(data:*):void
Set the user data pointer.
b2Joint
Method detail
EnableLimit()method
public function EnableLimit(flag:Boolean):void

Enable/disable the joint limit.

Parameters
flag:Boolean
EnableMotor()method 
public function EnableMotor(flag:Boolean):void

Enable/disable the joint motor.

Parameters
flag:Boolean
GetAnchor1()method 
public override function GetAnchor1():b2Vec2

Get the anchor point on body1 in world coordinates.

Returns
b2Vec2
GetAnchor2()method 
public override function GetAnchor2():b2Vec2

Get the anchor point on body2 in world coordinates.

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

Get the current joint angle in radians.

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

Get the current joint angle speed in radians per second.

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

Get the lower joint limit in radians.

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

Get the motor speed in radians per second.

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

Get the current motor torque, usually in N-m.

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

Get the reaction force on body2 at the joint anchor.

Parameters
inv_dt:Number

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

Get the reaction torque on body2.

Parameters
inv_dt:Number

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

Get the upper joint limit in radians.

Returns
Number
IsLimitEnabled()method 
public function IsLimitEnabled():Boolean

Is the joint limit enabled?

Returns
Boolean
IsMotorEnabled()method 
public function IsMotorEnabled():Boolean

Is the joint motor enabled?

Returns
Boolean
SetLimits()method 
public function SetLimits(lower:Number, upper:Number):void

Set the joint limits in radians.

Parameters
lower:Number
 
upper:Number
SetMaxMotorTorque()method 
public function SetMaxMotorTorque(torque:Number):void

Set the maximum motor torque, usually in N-m.

Parameters
torque:Number
SetMotorSpeed()method 
public function SetMotorSpeed(speed:Number):void

Set the motor speed in radians per second.

Parameters
speed:Number



Box2DFlashAS3 r42.