Enum Easing 

#[non_exhaustive]
pub enum Easing {
    Hold,
    Linear,
    EaseIn,
    EaseOut,
    EaseInOut,
    Bezier {
        p1: (f64, f64),
        p2: (f64, f64),
    },
}

Easing function applied to a keyframe interval.

Controls the shape of interpolation from one super::Keyframe to the next. Each keyframe carries the easing used for the transition from that keyframe to the subsequent one; the last keyframe’s easing is unused.

Individual easing functions are implemented across issues #352–#357.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Hold

Hold: the value snaps to the next keyframe without interpolation.

Linear

Linear: constant-rate interpolation (y = t).

EaseIn

Cubic ease-in: slow start, fast end (y = t³).

EaseOut

Cubic ease-out: fast start, slow end (y = 1 − (1−t)³).

EaseInOut

Cubic ease-in-out: slow at both ends, fast middle (y = 3t² − 2t³).

Bezier

CSS-compatible cubic Bézier with two user-defined control points.

P0 = (0, 0) and P3 = (1, 1) are fixed; p1 and p2 define the curve shape. Equivalent to the CSS cubic-bezier() function.

Fields

p1: (f64, f64)

First control point (x, y), x clamped to [0, 1].

p2: (f64, f64)

Second control point (x, y), x clamped to [0, 1].

Trait Implementations

impl Clone for Easing

fn clone(&self) -> Easing

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Easing

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Easing

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Easing

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.