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| b2Vec2 | GetAnchorA () const | 
|  | Get the anchor point on bodyA in world coordinates. 
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| b2Vec2 | GetAnchorB () const | 
|  | Get the anchor point on bodyB in world coordinates. 
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| b2Vec2 | GetReactionForce (float32 inv_dt) const | 
|  | Get the reaction force on bodyB at the joint anchor in Newtons. 
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| float32 | GetReactionTorque (float32 inv_dt) const | 
|  | Get the reaction torque on bodyB in N*m. 
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| const b2Vec2 & | GetLocalAnchorA () const | 
|  | The local anchor point relative to bodyA's origin. 
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| const b2Vec2 & | GetLocalAnchorB () const | 
|  | The local anchor point relative to bodyB's origin. 
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| const b2Vec2 & | GetLocalAxisA () const | 
|  | The local joint axis relative to bodyA. 
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| float32 | GetReferenceAngle () const | 
|  | Get the reference angle. 
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| float32 | GetJointTranslation () const | 
|  | Get the current joint translation, usually in meters. 
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| float32 | GetJointSpeed () const | 
|  | Get the current joint translation speed, usually in meters per second. 
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| bool | IsLimitEnabled () const | 
|  | Is the joint limit enabled? 
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| void | EnableLimit (bool flag) | 
|  | Enable/disable the joint limit. 
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| float32 | GetLowerLimit () const | 
|  | Get the lower joint limit, usually in meters. 
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| float32 | GetUpperLimit () const | 
|  | Get the upper joint limit, usually in meters. 
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| void | SetLimits (float32 lower, float32 upper) | 
|  | Set the joint limits, usually in meters. 
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| bool | IsMotorEnabled () const | 
|  | Is the joint motor enabled? 
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| void | EnableMotor (bool flag) | 
|  | Enable/disable the joint motor. 
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| void | SetMotorSpeed (float32 speed) | 
|  | Set the motor speed, usually in meters per second. 
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| float32 | GetMotorSpeed () const | 
|  | Get the motor speed, usually in meters per second. 
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| void | SetMaxMotorForce (float32 force) | 
|  | Set the maximum motor force, usually in N. 
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| float32 | GetMaxMotorForce () const | 
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| float32 | GetMotorForce (float32 inv_dt) const | 
|  | Get the current motor force given the inverse time step, usually in N. 
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| void | Dump () | 
|  | Dump to b2Log. 
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| b2JointType | GetType () const | 
|  | Get the type of the concrete joint. 
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| b2Body * | GetBodyA () | 
|  | Get the first body attached to this joint. 
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| b2Body * | GetBodyB () | 
|  | Get the second body attached to this joint. 
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| b2Joint * | GetNext () | 
|  | Get the next joint the world joint list. 
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| const b2Joint * | GetNext () const | 
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| void * | GetUserData () const | 
|  | Get the user data pointer. 
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| void | SetUserData (void *data) | 
|  | Set the user data pointer. 
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| bool | IsActive () const | 
|  | Short-cut function to determine if either body is inactive. 
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| bool | GetCollideConnected () const | 
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| virtual void | ShiftOrigin (const b2Vec2 &newOrigin) | 
|  | Shift the origin for any points stored in world coordinates. 
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|  | 
A prismatic joint. This joint provides one degree of freedom: translation along an axis fixed in bodyA. Relative rotation is prevented. You can use a joint limit to restrict the range of motion and a joint motor to drive the motion or to model joint friction.