#include <b2RopeJoint.h>

Inheritance diagram for b2RopeJoint:

Public Member Functions
b2Vec2	GetAnchorA () const
	Get the anchor point on bodyA in world coordinates. More...

b2Vec2	GetAnchorB () const
	Get the anchor point on bodyB in world coordinates. More...

b2Vec2	GetReactionForce (float32 inv_dt) const
	Get the reaction force on bodyB at the joint anchor in Newtons. More...

float32	GetReactionTorque (float32 inv_dt) const
	Get the reaction torque on bodyB in N*m. More...

const b2Vec2 &	GetLocalAnchorA () const
	The local anchor point relative to bodyA's origin. More...

const b2Vec2 &	GetLocalAnchorB () const
	The local anchor point relative to bodyB's origin. More...

void	SetMaxLength (float32 length)
	Set/Get the maximum length of the rope. More...

float32	GetMaxLength () const

b2LimitState	GetLimitState () const

void	Dump ()
	Dump joint to dmLog. More...

Public Member Functions inherited from b2Joint
b2JointType	GetType () const
	Get the type of the concrete joint. More...

b2Body *	GetBodyA ()
	Get the first body attached to this joint. More...

b2Body *	GetBodyB ()
	Get the second body attached to this joint. More...

b2Joint *	GetNext ()
	Get the next joint the world joint list. More...

const b2Joint *	GetNext () const

void *	GetUserData () const
	Get the user data pointer. More...

void	SetUserData (void *data)
	Set the user data pointer. More...

bool	IsActive () const
	Short-cut function to determine if either body is inactive. More...

bool	GetCollideConnected () const

virtual void	ShiftOrigin (const b2Vec2 &newOrigin)
	Shift the origin for any points stored in world coordinates. More...

Protected Member Functions
	b2RopeJoint (const b2RopeJointDef *data)

void	InitVelocityConstraints (const b2SolverData &data)

void	SolveVelocityConstraints (const b2SolverData &data)

bool	SolvePositionConstraints (const b2SolverData &data)

Protected Member Functions inherited from b2Joint
	b2Joint (const b2JointDef *def)

virtual	~b2Joint ()

Protected Attributes
b2Vec2	m_localAnchorA

b2Vec2	m_localAnchorB

float32	m_maxLength

float32	m_length

float32	m_impulse

int32	m_indexA

int32	m_indexB

b2Vec2	m_u

b2Vec2	m_rA

b2Vec2	m_rB

b2Vec2	m_localCenterA

b2Vec2	m_localCenterB

float32	m_invMassA

float32	m_invMassB

float32	m_invIA

float32	m_invIB

float32	m_mass

b2LimitState	m_state

Protected Attributes inherited from b2Joint
b2JointType	m_type

b2Joint *	m_prev

b2Joint *	m_next

b2JointEdge	m_edgeA

b2JointEdge	m_edgeB

b2Body *	m_bodyA

b2Body *	m_bodyB

int32	m_index

bool	m_islandFlag

bool	m_collideConnected

void *	m_userData

Friends
class	b2Joint

Additional Inherited Members
Static Protected Member Functions inherited from b2Joint
static b2Joint *	Create (const b2JointDef def, b2BlockAllocator allocator)

static void	Destroy (b2Joint joint, b2BlockAllocator allocator)

Detailed Description

A rope joint enforces a maximum distance between two points on two bodies. It has no other effect. Warning: if you attempt to change the maximum length during the simulation you will get some non-physical behavior. A model that would allow you to dynamically modify the length would have some sponginess, so I chose not to implement it that way. See b2DistanceJoint if you want to dynamically control length.

Constructor & Destructor Documentation

b2RopeJoint ( const b2RopeJointDef * data )

protected

Member Function Documentation

void Dump ( )

virtual

Dump joint to dmLog.

Reimplemented from b2Joint.

b2Vec2 GetAnchorA ( ) const

virtual

Get the anchor point on bodyA in world coordinates.

Implements b2Joint.

b2Vec2 GetAnchorB ( ) const

virtual

Get the anchor point on bodyB in world coordinates.

Implements b2Joint.

b2LimitState GetLimitState ( ) const

const b2Vec2& GetLocalAnchorA ( ) const

inline

The local anchor point relative to bodyA's origin.

const b2Vec2& GetLocalAnchorB ( ) const

inline

The local anchor point relative to bodyB's origin.

float32 GetMaxLength ( ) const

b2Vec2 GetReactionForce ( float32 inv_dt ) const

virtual

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

Implements b2Joint.

float32 GetReactionTorque ( float32 inv_dt ) const

virtual

Get the reaction torque on bodyB in N*m.

Implements b2Joint.

void InitVelocityConstraints ( const b2SolverData & data )

protectedvirtual

Implements b2Joint.

void SetMaxLength ( float32 length )

inline

Set/Get the maximum length of the rope.

bool SolvePositionConstraints ( const b2SolverData & data )

protectedvirtual

Implements b2Joint.

void SolveVelocityConstraints ( const b2SolverData & data )

protectedvirtual

Implements b2Joint.

Friends And Related Function Documentation

friend class b2Joint

friend

Member Data Documentation

float32 m_impulse

protected

int32 m_indexA

protected

int32 m_indexB

protected

float32 m_invIA

protected

float32 m_invIB

protected

float32 m_invMassA

protected

float32 m_invMassB

protected

float32 m_length

protected

b2Vec2 m_localAnchorA

protected

b2Vec2 m_localAnchorB

protected

b2Vec2 m_localCenterA

protected

b2Vec2 m_localCenterB

protected

float32 m_mass

protected

float32 m_maxLength

protected

b2Vec2 m_rA

protected

b2Vec2 m_rB

protected

b2LimitState m_state

protected

b2Vec2 m_u

protected

The documentation for this class was generated from the following files:

Box2D/Dynamics/Joints/b2RopeJoint.h
Box2D/Dynamics/Joints/b2RopeJoint.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation