| Box2D 2.2.1 A 2D Physics Engine for Games

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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 bodyB at the joint anchor in Newtons.
float32 | GetReactionTorque (float32 inv_dt) const
| Get the reaction torque on bodyB in N*m.
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.
float32 | GetReferenceAngle () const
| Get the reference angle.
void | SetFrequency (float32 hz)
| Set/get frequency in Hz.
float32 | GetFrequency () const
void | SetDampingRatio (float32 ratio)
| Set/get damping ratio.
float32 | GetDampingRatio () const
void | Dump ()
| Dump to b2Log.

## Protected Member Functions

| b2WeldJoint (const b2WeldJointDef *def)
void | InitVelocityConstraints (const b2SolverData &data)
void | SolveVelocityConstraints (const b2SolverData &data)
bool | SolvePositionConstraints (const b2SolverData &data)

## Protected Attributes

float32 | m_frequencyHz
float32 | m_dampingRatio
float32 | m_bias
b2Vec2 | m_localAnchorA
b2Vec2 | m_localAnchorB
float32 | m_referenceAngle
float32 | m_gamma
b2Vec3 | m_impulse
int32 | m_indexA
int32 | m_indexB
b2Vec2 | m_rA
b2Vec2 | m_rB
b2Vec2 | m_localCenterA
b2Vec2 | m_localCenterB
float32 | m_invMassA
float32 | m_invMassB
float32 | m_invIA
float32 | m_invIB
b2Mat33 | m_mass

## Friends

class | b2Joint

## Detailed Description

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

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

- b2WeldJoint.h
- b2WeldJoint.cpp

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