Struct SplineKeyframes 

pub struct SplineKeyframes { /* private fields */ }

A keyframe animation specification with smooth cubic Hermite spline interpolation.

Provides C1 continuity (smooth derivatives at keyframe boundaries), unlike KeyframesSpec which uses C0 linear interpolation.

Uses the Fritsch–Carlson monotonicity-preserving Hermite spline

Implementations

impl SplineKeyframes

pub fn new(keyframes: Vec<(f32, f32)>) -> Self

Build a spline keyframe from time/value pairs.

Times should be in [0.0, 1.0] and sorted ascending. At least 2 keyframes are required.

pub fn evaluate(&self, t: f32) -> f32

Evaluate the spline at normalized time t (0.0 to 1.0).

pub fn fingerprint(&self) -> String

Stable fingerprint of the keyframe times/values for change detection. Used by animate_spline_keyframes to restart when keyframes change without exposing the private spline internals.

Trait Implementations

impl Clone for SplineKeyframes

fn clone(&self) -> SplineKeyframes

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SplineKeyframes

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

Formats the value using the given formatter.