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b2GearJoint(native)

A gear joint is used to connect two joints together. Either joint can be a revolute or prismatic joint.

Properties

  • ratio : Float
    Set/Get the gear ratio.

Remarks

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: The revolute and prismatic joints must be attached to fixed bodies (which must be body1 on those joints).
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