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b2WeldJoint Class Reference

#include <b2WeldJoint.h>

Inherits b2Joint.

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 b2Vec2GetLocalAnchorA () const
 The local anchor point relative to bodyA's origin.
 
const b2Vec2GetLocalAnchorB () 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.
 
- Public Member Functions inherited from b2Joint
b2JointType GetType () const
 Get the type of the concrete joint.
 
b2BodyGetBodyA ()
 Get the first body attached to this joint.
 
b2BodyGetBodyB ()
 Get the second body attached to this joint.
 
b2JointGetNext ()
 Get the next joint the world joint list.
 
const b2JointGetNext () const
 
void * GetUserData () const
 Get the user data pointer.
 
void SetUserData (void *data)
 Set the user data pointer.
 
bool IsActive () const
 Short-cut function to determine if either body is inactive.
 
bool GetCollideConnected () const
 
virtual void ShiftOrigin (const b2Vec2 &newOrigin)
 Shift the origin for any points stored in world coordinates.
 

Protected Member Functions

 b2WeldJoint (const b2WeldJointDef *def)
 
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)
 

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
 
- Protected Attributes inherited from b2Joint
b2JointType m_type
 
b2Jointm_prev
 
b2Jointm_next
 
b2JointEdge m_edgeA
 
b2JointEdge m_edgeB
 
b2Bodym_bodyA
 
b2Bodym_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 b2JointCreate (const b2JointDef *def, b2BlockAllocator *allocator)
 
static void Destroy (b2Joint *joint, b2BlockAllocator *allocator)
 

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: