19 #ifndef B2_DISTANCE_JOINT_H    20 #define B2_DISTANCE_JOINT_H    22 #include <Box2D/Dynamics/Joints/b2Joint.h>    34         type = e_distanceJoint;
    76     b2Vec2 GetReactionForce(float32 inv_dt) 
const;
    80     float32 GetReactionTorque(float32 inv_dt) 
const;
    90     void SetLength(float32 
length);
    91     float32 GetLength() 
const;
    94     void SetFrequency(float32 hz);
    95     float32 GetFrequency() 
const;
    98     void SetDampingRatio(float32 ratio);
    99     float32 GetDampingRatio() 
const;
   110     void SolveVelocityConstraints(
const b2SolverData& data);
   111     bool SolvePositionConstraints(
const b2SolverData& data);
   113     float32 m_frequencyHz;
   114     float32 m_dampingRatio;
   144 inline float32 b2DistanceJoint::GetLength()
 const   154 inline float32 b2DistanceJoint::GetFrequency()
 const   156     return m_frequencyHz;
   161     m_dampingRatio = ratio;
   164 inline float32 b2DistanceJoint::GetDampingRatio()
 const   166     return m_dampingRatio;
 void Initialize(b2Body *bodyA, b2Body *bodyB, const b2Vec2 &anchorA, const b2Vec2 &anchorB)
Definition: b2DistanceJoint.cpp:38
b2Body * bodyA
The first attached body. 
Definition: b2Joint.h:92
b2Vec2 localAnchorA
The local anchor point relative to bodyA's origin. 
Definition: b2DistanceJoint.h:48
b2Body * bodyB
The second attached body. 
Definition: b2Joint.h:95
Definition: b2Joint.h:103
void SetLength(float32 length)
Definition: b2DistanceJoint.h:139
void Set(float32 x_, float32 y_)
Set this vector to some specified coordinates. 
Definition: b2Math.h:65
b2JointType type
The joint type is set automatically for concrete joint types. 
Definition: b2Joint.h:86
Solver Data. 
Definition: b2TimeStep.h:63
float32 length
The natural length between the anchor points. 
Definition: b2DistanceJoint.h:54
Definition: b2DistanceJoint.h:67
float32 frequencyHz
Definition: b2DistanceJoint.h:58
Joint definitions are used to construct joints. 
Definition: b2Joint.h:74
const b2Vec2 & GetLocalAnchorA() const 
The local anchor point relative to bodyA's origin. 
Definition: b2DistanceJoint.h:83
A rigid body. These are created via b2World::CreateBody. 
Definition: b2Body.h:126
Definition: b2DistanceJoint.h:30
float32 dampingRatio
The damping ratio. 0 = no damping, 1 = critical damping. 
Definition: b2DistanceJoint.h:61
void SetDampingRatio(float32 ratio)
Set/get damping ratio. 
Definition: b2DistanceJoint.h:159
const b2Vec2 & GetLocalAnchorB() const 
The local anchor point relative to bodyB's origin. 
Definition: b2DistanceJoint.h:86
b2Vec2 localAnchorB
The local anchor point relative to bodyB's origin. 
Definition: b2DistanceJoint.h:51
A 2D column vector. 
Definition: b2Math.h:53
void SetFrequency(float32 hz)
Set/get frequency in Hz. 
Definition: b2DistanceJoint.h:149