#include <b2_distance_joint.h>

Inheritance diagram for b2DistanceJoint:

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

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

b2Vec2	GetReactionForce (float inv_dt) const override

float	GetReactionTorque (float inv_dt) const override

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

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

float	GetLength () const
	Get the rest length.

float	SetLength (float length)

float	GetMinLength () const
	Get the minimum length.

float	SetMinLength (float minLength)

float	GetMaxLength () const
	Get the maximum length.

float	SetMaxLength (float maxLength)

float	GetCurrentLength () const
	Get the current length.

void	SetStiffness (float stiffness)
	Set/get the linear stiffness in N/m.

float	GetStiffness () const

void	SetDamping (float damping)
	Set/get linear damping in N*s/m.

float	GetDamping () const

void	Dump () override
	Dump joint to dmLog.

void	Draw (b2Draw *draw) const override
	Debug draw this joint.

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

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

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

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

const b2Joint *	GetNext () const

b2JointUserData &	GetUserData ()
	Get the user data pointer.

bool	IsEnabled () const
	Short-cut function to determine if either body is enabled.

bool	GetCollideConnected () const

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

Protected Member Functions
	b2DistanceJoint (const b2DistanceJointDef *data)

void	InitVelocityConstraints (const b2SolverData &data) override

void	SolveVelocityConstraints (const b2SolverData &data) override

bool	SolvePositionConstraints (const b2SolverData &data) override

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

Protected Attributes
float	m_stiffness

float	m_damping

float	m_bias

float	m_length

float	m_minLength

float	m_maxLength

b2Vec2	m_localAnchorA

b2Vec2	m_localAnchorB

float	m_gamma

float	m_impulse

float	m_lowerImpulse

float	m_upperImpulse

int32	m_indexA

int32	m_indexB

b2Vec2	m_u

b2Vec2	m_rA

b2Vec2	m_rB

b2Vec2	m_localCenterA

b2Vec2	m_localCenterB

float	m_currentLength

float	m_invMassA

float	m_invMassB

float	m_invIA

float	m_invIB

float	m_softMass

float	m_mass

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

b2JointUserData	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 distance joint constrains two points on two bodies to remain at a fixed distance from each other. You can view this as a massless, rigid rod.

Member Function Documentation

◆ GetReactionForce()

b2Vec2 b2DistanceJoint::GetReactionForce ( float inv_dt ) const

overridevirtual

Get the reaction force given the inverse time step. Unit is N.

Implements b2Joint.

◆ GetReactionTorque()

float b2DistanceJoint::GetReactionTorque ( float inv_dt ) const

overridevirtual

Get the reaction torque given the inverse time step. Unit is N*m. This is always zero for a distance joint.

Implements b2Joint.

◆ SetLength()

float b2DistanceJoint::SetLength ( float length )

Set the rest length

Returns: clamped rest length

◆ SetMaxLength()

float b2DistanceJoint::SetMaxLength ( float maxLength )

Set the maximum length

Returns: the clamped maximum length

◆ SetMinLength()

float b2DistanceJoint::SetMinLength ( float minLength )

Set the minimum length

Returns: the clamped minimum length

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

D:/GitHub/box2d/include/box2d/b2_distance_joint.h

Public Member Functions

Protected Member Functions

Protected Attributes

Friends