Struct Tween 

pub struct Tween<T> {
    pub begin: T,
    pub end: T,
}

The animation vocabulary: the shell-fed frame clock (FrameTime) plus the pure easing/interpolation/spring math a widget or app advances it through, flat-re-exported from frust-core::anim. Time enters from the shell during paint (PaintCtx::frame_time); nothing here reads a clock. A begin→end interpolation over a Lerp value type.

Fields

begin: T

The value at t = 0.

end: T

The value at t = 1.

Implementations

impl<T> Tween<T>

where T: Lerp,

pub fn new(begin: T, end: T) -> Tween<T>

Construct a tween between begin and end.

pub fn lerp(&self, t: f64) -> T

The interpolated value at t (typically the eased progress from a Curve or an AnimationController::value). t is not clamped here; clamp upstream (a Curve already does) if extrapolation is unwanted.

Trait Implementations

impl<T> Clone for Tween<T>

where T: Clone,

fn clone(&self) -> Tween<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Copy for Tween<T>

where T: Copy,

impl<T> Debug for Tween<T>

where T: Debug,

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

Formats the value using the given formatter.

impl<T> PartialEq for Tween<T>

where T: PartialEq,

fn eq(&self, other: &Tween<T>) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl<T> StructuralPartialEq for Tween<T>

where T: PartialEq,