Struct SpringNaturalMotionAnimationInstance 

pub struct SpringNaturalMotionAnimationInstance<T: SpringValue> { /* private fields */ }

Server-side counterpart of the spring natural motion animations (SpringScalarNaturalMotionAnimation, SpringVector2NaturalMotionAnimation, SpringVector3NaturalMotionAnimation).

Each component of the value moves on a damped harmonic oscillator from the initial value with the initial velocity to the final value. The animation ends when every component is close enough to the final value and nearly at rest: it then sets the final value, leaves the clock and releases the batches it belongs to, as a key frame animation that finishes.

Implementations

impl<T: SpringValue> SpringNaturalMotionAnimationInstance<T>

pub fn new( spring: SpringNaturalMotionParameters<T>, target: ServerObjectId, snapshot: Rc<PropertySetSnapshot>, ) -> Rc<SpringNaturalMotionAnimationInstance<T>>

pub fn set_completion(&self, completion: AnimationCompletion)

Sets the batches the animation belongs to.

pub fn set_initial_value_expressions( &self, expressions: Vec<(String, Expression)>, )

Sets the initial value expressions of the animation, applied to the target when the instance is initialized.

Trait Implementations

impl<T: SpringValue> IAnimationInstance for SpringNaturalMotionAnimationInstance<T>

fn target_object(&self) -> ServerObjectId

The object whose property is animated.

fn resolve(&self, compositor: &Rc<ServerCompositor>)

Resolves the server objects the instance refers to by id, on the compositor that drives it. Called once, on the server, before the instance is initialized; an instance that refers to no object needs nothing.

fn evaluate( &self, now: Duration, current_value: ExpressionVariant, ) -> ExpressionVariant

The value of the animation at now.

fn initialize( &self, started_at: Duration, starting_value: ExpressionVariant, property: &'static CompositionProperty, )

Attaches the instance to the property it animates.

fn activate(&self)

fn deactivate(&self)

fn invalidate(&self)

fn value_on_stop( &self, _current_value: ExpressionVariant, ) -> Option<ExpressionVariant>

The value the animated property is set to when the animation is stopped by StopAnimation (its stop behavior), given the current value of the property; None leaves the current value.

fn release_completion(&self)

Tells the batches the animation belongs to that it is over (it is stopped, replaced or its target is disposed). Releasing again does nothing; an animation that belongs to no batch does nothing.

fn attach_controller(&self, controller: ServerObjectId)

Puts the instance under the control of an AnimationController, named by the id of the controller’s property set: from now on the controller pauses, resumes, scrubs and speeds up the animation; if the progress of the controller was assigned, the animation moves there at its next evaluation. An instance that cannot be controlled (an expression animation) ignores it.

fn as_subchannel(&self) -> Option<&SubchannelAnimationInstance>

The instance as an animation of components of its property (Offset.X), if it is one: such animations of one property are merged on the server.

impl<T: SpringValue> IServerClockItem for SpringNaturalMotionAnimationInstance<T>

fn on_tick(&self)