Public Member Functions | Protected Member Functions | Protected Attributes | Friends
b2GearJoint Class Reference

#include <b2GearJoint.h>

Inheritance diagram for b2GearJoint:
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List of all members.

Public Member Functions

void Dump ()
 Dump joint to dmLog.
b2Vec2 GetAnchorA () const
 Get the anchor point on bodyA in world coordinates.
b2Vec2 GetAnchorB () const
 Get the anchor point on bodyB in world coordinates.
b2JointGetJoint1 ()
 Get the first joint.
b2JointGetJoint2 ()
 Get the second joint.
float32 GetRatio () const
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.
void SetRatio (float32 ratio)
 Set/Get the gear ratio.

Protected Member Functions

 b2GearJoint (const b2GearJointDef *data)
void InitVelocityConstraints (const b2SolverData &data)
bool SolvePositionConstraints (const b2SolverData &data)
void SolveVelocityConstraints (const b2SolverData &data)

Protected Attributes

b2Bodym_bodyC
b2Bodym_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
b2Jointm_joint1
b2Jointm_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

Friends

class b2Joint

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.

Get the first joint.

Definition at line 66 of file b2GearJoint.h.

Get the second joint.

Definition at line 69 of file b2GearJoint.h.

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) [protected, virtual]

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) [protected, virtual]

Implements b2Joint.

Definition at line 271 of file b2GearJoint.cpp.

void b2GearJoint::SolveVelocityConstraints ( const b2SolverData data) [protected, virtual]

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

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


mvsim
Author(s):
autogenerated on Thu Jun 6 2019 22:08:35