| Box2D 2.4.1
    A 2D physics engine for games | 
#include <b2_gear_joint.h>
 
  
| Public Attributes | |
| b2Joint * | joint1 | 
| The first revolute/prismatic joint attached to the gear joint. | |
| b2Joint * | joint2 | 
| The second revolute/prismatic joint attached to the gear joint. | |
| float | ratio | 
|  Public Attributes inherited from b2JointDef | |
| b2JointType | type | 
| The joint type is set automatically for concrete joint types. | |
| b2JointUserData | userData | 
| Use this to attach application specific data to your joints. | |
| b2Body * | bodyA | 
| The first attached body. | |
| b2Body * | bodyB | 
| The second attached body. | |
| bool | collideConnected | 
| Set this flag to true if the attached bodies should collide. | |
Gear joint definition. This definition requires two existing revolute or prismatic joints (any combination will work).
| float b2GearJointDef::ratio | 
The gear ratio.