Struct AnimTrack 

pub struct AnimTrack {
    pub name: String,
    pub interp: TrackInterp,
    /* private fields */
}

A named animation track holding keyframes for one parameter.

Fields

name: String

Track name (identifies the morph parameter).

interp: TrackInterp

Interpolation mode used when evaluating between keyframes.

Implementations

impl AnimTrack

pub fn new(name: impl Into<String>, interp: TrackInterp) -> Self

Create a new empty track with the given name and interpolation mode.

pub fn add_keyframe(&mut self, time: f32, value: f32)

Add a keyframe at time with value. Keyframes are kept sorted by time; if a keyframe at the exact time already exists its value is replaced.

pub fn remove_keyframe(&mut self, time: f32) -> bool

Remove the keyframe whose time exactly matches time. Returns true if a keyframe was removed.

pub fn keyframe_count(&self) -> usize

Number of keyframes in this track.

pub fn keyframes(&self) -> &[Keyframe]

Slice of all keyframes in time order.

pub fn duration(&self) -> f32

Time of the last keyframe, or 0.0 if the track is empty.

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

Evaluate the track at time using the configured interpolation mode.

pub fn set_interp(&mut self, interp: TrackInterp)

Change the interpolation mode for this track.