@thi.ng/ramp/easing.d.ts

Extensible keyframe interpolation/tweening of arbitrary, nested types

import type { FnN } from "@thi.ng/api";
import type { Vec } from "@thi.ng/vectors";
import type { Frame, RampImpl, RampOpts, VecAPI } from "./api.js";
import { Ramp } from "./ramp.js";
/**
 * Syntax sugar for creating a numeric {@link Ramp} using the {@link EASING_N}
 * ramp interpolation impl (supporting arbitrary easing functions), given
 * `stops` (aka keyframes, minimum 2 required) and options.
 *
 * @remarks
 * Easing functions remap time values in the `[0,1]` range. By default uses
 * [`easeInOut5`](https://docs.thi.ng/umbrella/math/functions/easeInOut5.html).
 *
 * For vector-valued ramps, use {@link ramp} with {@link EASING_V}.
 *
 * @param stops
 * @param opts
 */
export declare const easing: (stops: Frame<number>[], opts?: Partial<RampOpts & {
    easing: FnN;
}>) => Ramp<number>;
/**
 * Higher-order ramp interpolation implementation supporting arbitrary `easing`
 * function to control keyframe interpolation.
 *
 * @remarks
 * Easing functions remap time values in the `[0,1]` range. By default uses
 * [`easeInOut5`](https://docs.thi.ng/umbrella/math/functions/easeInOut5.html).
 *
 * @param easing
 */
export declare const EASING_N: (easing?: FnN) => RampImpl<number>;
/**
 * Vector version of {@link EASING_N}. Use with any of the supplied vector APIs:
 * {@link VEC} (arbitrary size), {@link VEC2}, {@link VEC3} or {@link VEC4}.
 *
 * @remarks
 * Easing functions remap time values in the `[0,1]` range. By default uses
 * [`easeInOut5`](https://docs.thi.ng/umbrella/math/functions/easeInOut5.html).
 *
 * @param vec
 * @param easing
 */
export declare const EASING_V: <T extends Vec>(vec: VecAPI, easing?: FnN) => RampImpl<T>;
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