B2.DistanceJoint

From GiderosMobile
Revision as of 15:17, 23 August 2018 by Hgy29 (talk | contribs)

Supported platforms: android, ios, mac, pc
Available since: Gideros 2011.6

Description


A distance joint constrains two points on two bodies to remain at a fixed distance from each other. You can view this as a massless, rigid rod.

Examples

Distance joint

local jointDef = b2.createDistanceJointDef(body1, body2, 100, 100, 200, 100)
local distanceJoint = world:createJoint(jointDef)
--by default length between two bodies is the length they have between them when joint was created
--but it is possilbe to change it using
distanceJoint:setLength(200)
distanceJoint:setDampingRatio(0.5)
distanceJoint:setFrequency(4)

Methods

b2.DistanceJoint:getDampingRatio Template:Returns the damping ratio
b2.DistanceJoint:getFrequency Template:Returns the mass-spring-damper frequency in Hertz
b2.DistanceJoint:getLength Template:Returns the length of this distance joint in meters
b2.DistanceJoint:setDampingRatio Template:Sets the damping ratio (0 = no damping, 1 = critical damping)
b2.DistanceJoint:setFrequency Template:Sets the mass-spring-damper frequency in Hertz
b2.DistanceJoint:setLength Template:Sets the natural joint length in meters

Events

Constants