RevoluteJoint class

A revolute joint constrains two bodies to share a common point while they are free to rotate about the point. The relative rotation about the shared point is the joint angle. You can limit the relative rotation with a joint limit that specifies a lower and upper angle. You can use a motor to drive the relative rotation about the shared point. A maximum motor torque is provided so that infinite forces are not generated.

Inheritance

Constructors

RevoluteJoint(RevoluteJointDef<Body, Body> def)

Properties

anchorA → Vector2
Get the anchor point on bodyA in world coordinates.
no setterinherited
anchorB → Vector2
Get the anchor point on bodyB in world coordinates.
no setterinherited
bodyA ↔ Body
getter/setter pairinherited
bodyB ↔ Body
getter/setter pairinherited
collideConnected → bool
Get collide connected. Note: modifying the collide connect flag won't work correctly because the flag is only checked when fixture AABBs begin to overlap.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
isActive → bool
Short-cut function to determine if either body is inactive.
no setterinherited
islandFlag ↔ bool
getter/setter pairinherited
limitEnabled → bool
no setter
localAnchorA → Vector2
final
localAnchorB → Vector2
final
lowerLimit → double
no setter
maxMotorTorque → double
no setter
motorEnabled → bool
no setter
motorSpeed ↔ double
getter/setter pair
referenceAngle → double
no setter
renderColor → Color3i
Color used to render.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
upperLimit → double
no setter

Methods

containsBody(Body body) → bool
Whether the body is connected to the joint
inherited
destructor() → void
Override to handle destruction of joint
inherited
enableLimit(bool flag) → void
enableMotor(bool flag) → void
initVelocityConstraints(SolverData data) → void
override
jointAngle() → double
jointSpeed() → double
motorTorque(double invDt) → double
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
otherBody(Body body) → Body
Get the other body than the argument in the joint
inherited
reactionForce(double invDt) → Vector2
Get the reaction force on body2 at the joint anchor in Newtons.
override
reactionTorque(double invDt) → double
Get the reaction torque on body2 in N*m.
override
render(DebugDraw debugDraw) → void
override
setLimits(double lower, double upper) → void
setMaxMotorTorque(double torque) → void
solvePositionConstraints(SolverData data) → bool
This returns true if the position errors are within tolerance. Internal.
override
solveVelocityConstraints(SolverData data) → void
override
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited