Type Number
Object Joint
Library physics.*
Revision Current Public Release (2017.3135)
Keywords joint, length1
See also object.length2
Physics Joints (guide)


Read-only value that, upon instantiation of a "pulley" joint, indicates the distance in pixels between the first anchor point and its stationary pulley anchor point.


local pulleyJoint = physics.newJoint( "pulley", bodyA, bodyB, anchorA_x, anchorA_y, anchorB_x, anchorB_y, bodyA.x, bodyA.y, bodyB.x, bodyB.y, 1.0 )
print( pulleyJoint.length1 )
print( pulleyJoint.length2 )
print( pulleyJoint.ratio )