| Box2D 2.4.1
    A 2D physics engine for games | 
#include <b2_gear_joint.h>
 
  
| 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 | 
| Get the reaction force on bodyB at the joint anchor in Newtons. | |
| float | GetReactionTorque (float inv_dt) const override | 
| Get the reaction torque on bodyB in N*m. | |
| b2Joint * | GetJoint1 () | 
| Get the first joint. | |
| b2Joint * | GetJoint2 () | 
| Get the second joint. | |
| void | SetRatio (float ratio) | 
| Set/Get the gear ratio. | |
| float | GetRatio () const | 
| void | Dump () override | 
| Dump joint to dmLog. | |
|  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. | |
| virtual void | Draw (b2Draw *draw) const | 
| Debug draw this joint. | |
| Protected Member Functions | |
| b2GearJoint (const b2GearJointDef *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 | |
| b2Joint * | m_joint1 | 
| b2Joint * | m_joint2 | 
| b2JointType | m_typeA | 
| b2JointType | m_typeB | 
| b2Body * | m_bodyC | 
| b2Body * | m_bodyD | 
| b2Vec2 | m_localAnchorA | 
| b2Vec2 | m_localAnchorB | 
| b2Vec2 | m_localAnchorC | 
| b2Vec2 | m_localAnchorD | 
| b2Vec2 | m_localAxisC | 
| b2Vec2 | m_localAxisD | 
| float | m_referenceAngleA | 
| float | m_referenceAngleB | 
| float | m_constant | 
| float | m_ratio | 
| float | m_impulse | 
| int32 | m_indexA | 
| int32 | m_indexB | 
| int32 | m_indexC | 
| int32 | m_indexD | 
| b2Vec2 | m_lcA | 
| b2Vec2 | m_lcB | 
| b2Vec2 | m_lcC | 
| b2Vec2 | m_lcD | 
| float | m_mA | 
| float | m_mB | 
| float | m_mC | 
| float | m_mD | 
| float | m_iA | 
| float | m_iB | 
| float | m_iC | 
| float | m_iD | 
| b2Vec2 | m_JvAC | 
| b2Vec2 | m_JvBD | 
| float | m_JwA | 
| float | m_JwB | 
| float | m_JwC | 
| float | m_JwD | 
| 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) | 
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.
| 
 | overridevirtual | 
Dump joint to dmLog.
Reimplemented from b2Joint.
| 
 | overridevirtual | 
Get the anchor point on bodyA in world coordinates.
Implements b2Joint.
| 
 | overridevirtual | 
Get the anchor point on bodyB in world coordinates.
Implements b2Joint.
| 
 | overridevirtual | 
Get the reaction force on bodyB at the joint anchor in Newtons.
Implements b2Joint.
| 
 | overridevirtual | 
Get the reaction torque on bodyB in N*m.
Implements b2Joint.
| 
 | overrideprotectedvirtual | 
Implements b2Joint.
| 
 | overrideprotectedvirtual | 
Implements b2Joint.
| 
 | overrideprotectedvirtual | 
Implements b2Joint.