# love.physics.newGearJoint

Create a GearJoint connecting two Joints.

The gear joint connects two joints that must be either prismatic or revolute joints. Using this joint requires that the joints it uses connect their respective bodies to the ground and have the ground as the first body. When destroying the bodies and joints you must make sure you destroy the gear joint before the other joints.

The gear joint has a ratio the determines how the angular or distance values of the connected joints relate to each other. The formula `coordinate1 + ratio * coordinate2` always has a constant value that is set when the gear joint is created.

## Function

Available since LÖVE 0.8.0
This variant is not supported in earlier versions.

### Synopsis

    joint = love.physics.newGearJoint( joint1, joint2, ratio, collideConnected )

### Arguments

`Joint joint1`
  The first joint to connect with a gear joint.
`Joint joint2`
  The second joint to connect with a gear joint.
`number ratio (1)`
  The gear ratio.
`boolean collideConnected (false)`
  Specifies whether the two bodies should collide with each other.

### Returns

`GearJoint joint`
  The new gear joint.

## Function

Removed in LÖVE 0.8.0
This variant is not supported in that and later versions.

### Synopsis

    joint = love.physics.newGearJoint( joint1, joint2, ratio )

### Arguments

`Joint joint1`
  The first joint to connect with a gear joint.
`Joint joint2`
  The second joint to connect with a gear joint.
`number ratio (1)`
  The gear ratio.

### Returns

`Joint joint`
  The new gear joint.

## See Also

- love.physics
- GearJoint
- Joint

##

Category:

- Functions