#include <b2GearJoint.h>

Inheritance diagram for b2GearJoint:

Public Member Functions
void	Dump ()
	Dump joint to dmLog. More...

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...

b2Joint *	GetJoint1 ()
	Get the first joint. More...

b2Joint *	GetJoint2 ()
	Get the second joint. More...

float32	GetRatio () const

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...

void	SetRatio (float32 ratio)
	Set/Get the gear ratio. More...

Public Member Functions inherited from b2Joint
b2Body *	GetBodyA ()
	Get the first body attached to this joint. More...

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

bool	GetCollideConnected () const

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

const b2Joint *	GetNext () const

b2JointType	GetType () const
	Get the type of the concrete joint. More...

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

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

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

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

Protected Member Functions
	b2GearJoint (const b2GearJointDef *data)

void	InitVelocityConstraints (const b2SolverData &data)

bool	SolvePositionConstraints (const b2SolverData &data)

void	SolveVelocityConstraints (const b2SolverData &data)

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

virtual	~b2Joint ()

Protected Attributes
b2Body *	m_bodyC

b2Body *	m_bodyD

float32	m_constant

float32	m_iA

float32	m_iB

float32	m_iC

float32	m_iD

float32	m_impulse

int32	m_indexA

int32	m_indexB

int32	m_indexC

int32	m_indexD

b2Joint *	m_joint1

b2Joint *	m_joint2

b2Vec2	m_JvAC

b2Vec2	m_JvBD

float32	m_JwA

float32	m_JwB

float32	m_JwC

float32	m_JwD

b2Vec2	m_lcA

b2Vec2	m_lcB

b2Vec2	m_lcC

b2Vec2	m_lcD

b2Vec2	m_localAnchorA

b2Vec2	m_localAnchorB

b2Vec2	m_localAnchorC

b2Vec2	m_localAnchorD

b2Vec2	m_localAxisC

b2Vec2	m_localAxisD

float32	m_mA

float32	m_mass

float32	m_mB

float32	m_mC

float32	m_mD

float32	m_ratio

float32	m_referenceAngleA

float32	m_referenceAngleB

b2JointType	m_typeA

b2JointType	m_typeB

Protected Attributes inherited from b2Joint
b2Body *	m_bodyA

b2Body *	m_bodyB

bool	m_collideConnected

b2JointEdge	m_edgeA

b2JointEdge	m_edgeB

int32	m_index

bool	m_islandFlag

b2Joint *	m_next

b2Joint *	m_prev

b2JointType	m_type

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 gear joint is used to connect two joints together. Either joint can be a revolute or prismatic joint. You specify a gear ratio to bind the motions together: coordinate1 + ratio * coordinate2 = constant The ratio can be negative or positive. If one joint is a revolute joint and the other joint is a prismatic joint, then the ratio will have units of length or units of 1/length.

Warning: You have to manually destroy the gear joint if joint1 or joint2 is destroyed.

Definition at line 56 of file b2GearJoint.h.

Constructor & Destructor Documentation

b2GearJoint::b2GearJoint ( const b2GearJointDef * data )

protected

Definition at line 44 of file b2GearJoint.cpp.

Member Function Documentation

void b2GearJoint::Dump ( )

virtual

Dump joint to dmLog.

Reimplemented from b2Joint.

Definition at line 403 of file b2GearJoint.cpp.

b2Vec2 b2GearJoint::GetAnchorA ( ) const

virtual

Get the anchor point on bodyA in world coordinates.

Implements b2Joint.

Definition at line 370 of file b2GearJoint.cpp.

b2Vec2 b2GearJoint::GetAnchorB ( ) const

virtual

Get the anchor point on bodyB in world coordinates.

Implements b2Joint.

Definition at line 375 of file b2GearJoint.cpp.

b2Joint* b2GearJoint::GetJoint1 ( )

inline

Get the first joint.

Definition at line 66 of file b2GearJoint.h.

b2Joint* b2GearJoint::GetJoint2 ( )

inline

Get the second joint.

Definition at line 69 of file b2GearJoint.h.

float32 b2GearJoint::GetRatio ( ) const

Definition at line 398 of file b2GearJoint.cpp.

b2Vec2 b2GearJoint::GetReactionForce ( float32 inv_dt ) const

virtual

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

Implements b2Joint.

Definition at line 380 of file b2GearJoint.cpp.

float32 b2GearJoint::GetReactionTorque ( float32 inv_dt ) const

virtual

Get the reaction torque on bodyB in N*m.

Implements b2Joint.

Definition at line 386 of file b2GearJoint.cpp.

void b2GearJoint::InitVelocityConstraints ( const b2SolverData & data )

protectedvirtual

Implements b2Joint.

Definition at line 131 of file b2GearJoint.cpp.

void b2GearJoint::SetRatio ( float32 ratio )

Set/Get the gear ratio.

Definition at line 392 of file b2GearJoint.cpp.

bool b2GearJoint::SolvePositionConstraints ( const b2SolverData & data )

protectedvirtual

Implements b2Joint.

Definition at line 271 of file b2GearJoint.cpp.

void b2GearJoint::SolveVelocityConstraints ( const b2SolverData & data )

protectedvirtual

Implements b2Joint.

Definition at line 235 of file b2GearJoint.cpp.

Friends And Related Function Documentation

friend class b2Joint

friend

Definition at line 80 of file b2GearJoint.h.

Member Data Documentation

b2Body* b2GearJoint::m_bodyC

protected

Definition at line 95 of file b2GearJoint.h.

b2Body* b2GearJoint::m_bodyD

protected

Definition at line 96 of file b2GearJoint.h.

float32 b2GearJoint::m_constant

protected

Definition at line 110 of file b2GearJoint.h.

float32 b2GearJoint::m_iA

protected

Definition at line 119 of file b2GearJoint.h.

float32 b2GearJoint::m_iB

protected

Definition at line 119 of file b2GearJoint.h.

float32 b2GearJoint::m_iC

protected

Definition at line 119 of file b2GearJoint.h.

float32 b2GearJoint::m_iD

protected

Definition at line 119 of file b2GearJoint.h.

float32 b2GearJoint::m_impulse

protected

Definition at line 113 of file b2GearJoint.h.

int32 b2GearJoint::m_indexA

protected

Definition at line 116 of file b2GearJoint.h.

int32 b2GearJoint::m_indexB

protected

Definition at line 116 of file b2GearJoint.h.

int32 b2GearJoint::m_indexC

protected

Definition at line 116 of file b2GearJoint.h.

int32 b2GearJoint::m_indexD

protected

Definition at line 116 of file b2GearJoint.h.

b2Joint* b2GearJoint::m_joint1

protected

Definition at line 87 of file b2GearJoint.h.

b2Joint* b2GearJoint::m_joint2

protected

Definition at line 88 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_JvAC

protected

Definition at line 120 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_JvBD

protected

Definition at line 120 of file b2GearJoint.h.

float32 b2GearJoint::m_JwA

protected

Definition at line 121 of file b2GearJoint.h.

float32 b2GearJoint::m_JwB

protected

Definition at line 121 of file b2GearJoint.h.

float32 b2GearJoint::m_JwC

protected

Definition at line 121 of file b2GearJoint.h.

float32 b2GearJoint::m_JwD

protected

Definition at line 121 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_lcA

protected

Definition at line 117 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_lcB

protected

Definition at line 117 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_lcC

protected

Definition at line 117 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_lcD

protected

Definition at line 117 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_localAnchorA

protected

Definition at line 99 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_localAnchorB

protected

Definition at line 100 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_localAnchorC

protected

Definition at line 101 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_localAnchorD

protected

Definition at line 102 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_localAxisC

protected

Definition at line 104 of file b2GearJoint.h.

b2Vec2 b2GearJoint::m_localAxisD

protected

Definition at line 105 of file b2GearJoint.h.

float32 b2GearJoint::m_mA

protected

Definition at line 118 of file b2GearJoint.h.

float32 b2GearJoint::m_mass

protected

Definition at line 122 of file b2GearJoint.h.

float32 b2GearJoint::m_mB

protected

Definition at line 118 of file b2GearJoint.h.

float32 b2GearJoint::m_mC

protected

Definition at line 118 of file b2GearJoint.h.

float32 b2GearJoint::m_mD

protected

Definition at line 118 of file b2GearJoint.h.

float32 b2GearJoint::m_ratio

protected

Definition at line 111 of file b2GearJoint.h.

float32 b2GearJoint::m_referenceAngleA

protected

Definition at line 107 of file b2GearJoint.h.

float32 b2GearJoint::m_referenceAngleB

protected

Definition at line 108 of file b2GearJoint.h.

b2JointType b2GearJoint::m_typeA

protected

Definition at line 90 of file b2GearJoint.h.

b2JointType b2GearJoint::m_typeB

protected

Definition at line 91 of file b2GearJoint.h.

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

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