Package pymunk :: Module constraint :: Class DampedRotarySpring

Class DampedRotarySpring

object --+    
         |    
Constraint --+
             |
            DampedRotarySpring

Like a damped spring, but works in an angular fashion

Instance Methods

__init__(self, a, b, rest_angle, stiffness, damping)
Like a damped spring, but works in an angular fashion.

__del__(self) (Inherited from pymunk.constraint.Constraint)

activate_bodies(self) (Inherited from pymunk.constraint.Constraint)

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Properties
	rest_angle The relative angle in radians that the bodies want to have
	stiffness The spring constant (Young's modulus).
	damping How soft to make the damping of the spring.
	torque_func Set the torque function
	a The first of the two bodies constrained (Inherited from pymunk.constraint.Constraint)
	b The second of the two bodies constrained (Inherited from pymunk.constraint.Constraint)
	error_bias The rate at which joint error is corrected. (Inherited from pymunk.constraint.Constraint)
	impulse Get the last impulse applied by this constraint. (Inherited from pymunk.constraint.Constraint)
	max_bias The maximum rate at which joint error is corrected. Defaults to infinity (Inherited from pymunk.constraint.Constraint)
	max_force The maximum force that the constraint can use to act on the two bodies. Defaults to infinity (Inherited from pymunk.constraint.Constraint)
Inherited from `object`: `__class__`

Method Details

init(self, a, b, rest_angle, stiffness, damping)
(Constructor)

Like a damped spring, but works in an angular fashion.

Parameters:

rest_angle - The relative angle in radians that the bodies want to have
stiffness - The spring constant (Young's modulus).
damping - How soft to make the damping of the spring.

Overrides: object.__init__

Property Details

rest_angle

The relative angle in radians that the bodies want to have

Get Method:: _get_rest_angle(self)
Set Method:: _set_rest_angle(self, rest_angle)

stiffness

The spring constant (Young's modulus).

Get Method:: _get_stiffness(self)
Set Method:: _set_stiffness(self, stiffness)

damping

How soft to make the damping of the spring.

Get Method:: _get_damping(self)
Set Method:: _set_damping(self, damping)

torque_func

Set the torque function

func(self, relative_angle) -> torque

Callback Parameters

relative_angle : float: The relative angle

Set Method:: _set_torque_func(self, func) - Set the torque function