b2WeldJoint Class Reference

#include <b2WeldJoint.h>

Inheritance diagram for b2WeldJoint:

List of all members.

Public Member Functions
b2Vec2	GetAnchorA () const
	Get the anchor point on bodyA in world coordinates.
b2Vec2	GetAnchorB () const
	Get the anchor point on bodyB in world coordinates.
b2Vec2	GetReactionForce (float32 inv_dt) const
	Get the reaction force on body2 at the joint anchor in Newtons.
float32	GetReactionTorque (float32 inv_dt) const
	Get the reaction torque on body2 in N*m.
Protected Member Functions
	b2WeldJoint (const b2WeldJointDef *def)
void	InitVelocityConstraints (const b2TimeStep &step)
void	SolveVelocityConstraints (const b2TimeStep &step)
bool	SolvePositionConstraints (float32 baumgarte)
Protected Attributes
b2Vec2	m_localAnchorA
b2Vec2	m_localAnchorB
float32	m_referenceAngle
b2Vec3	m_impulse
b2Mat33	m_mass
Friends
class	b2Joint

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Detailed Description

A weld joint essentially glues two bodies together. A weld joint may distort somewhat because the island constraint solver is approximate.

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Constructor & Destructor Documentation

b2WeldJoint::b2WeldJoint

(

const b2WeldJointDef *

def

)

[protected]

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Member Function Documentation

b2Vec2 b2WeldJoint::GetAnchorA

(

)

const [virtual]

Get the anchor point on bodyA in world coordinates.

Implements b2Joint.

b2Vec2 b2WeldJoint::GetAnchorB

(

)

const [virtual]

Get the anchor point on bodyB in world coordinates.

Implements b2Joint.

b2Vec2 b2WeldJoint::GetReactionForce

(

float32

inv_dt

)

const [virtual]

Get the reaction force on body2 at the joint anchor in Newtons.

Implements b2Joint.

float32 b2WeldJoint::GetReactionTorque

(

float32

inv_dt

)

const [virtual]

Get the reaction torque on body2 in N*m.

Implements b2Joint.

void b2WeldJoint::InitVelocityConstraints

(

const b2TimeStep &

step

)

[protected, virtual]

Implements b2Joint.

bool b2WeldJoint::SolvePositionConstraints

(

float32

baumgarte

)

[protected, virtual]

Implements b2Joint.

void b2WeldJoint::SolveVelocityConstraints

(

const b2TimeStep &

step

)

[protected, virtual]

Implements b2Joint.

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Friends And Related Function Documentation

friend class b2Joint [friend]

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Member Data Documentation

b2Vec3 b2WeldJoint::m_impulse [protected]

b2Vec2 b2WeldJoint::m_localAnchorA [protected]

b2Vec2 b2WeldJoint::m_localAnchorB [protected]

b2Mat33 b2WeldJoint::m_mass [protected]

float32 b2WeldJoint::m_referenceAngle [protected]

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

• Box2D/Box2D/Dynamics/Joints/b2WeldJoint.h
• Box2D/Box2D/Dynamics/Joints/b2WeldJoint.cpp