/**
 * A 2D vector represented as a fixed-length tuple [x, y].
 */
export type Vec2 = [number, number];
/**
 * The options object for `getStroke` or `getStrokePoints`.
 * @param points An array of points (as `[x, y, pressure]` or `{x, y, pressure}`). Pressure is optional in both cases.
 * @param options (optional) An object with options.
 * @param options.size	The base size (diameter) of the stroke.
 * @param options.thinning The effect of pressure on the stroke's size.
 * @param options.smoothing	How much to soften the stroke's edges.
 * @param options.easing	An easing function to apply to each point's pressure.
 * @param options.simulatePressure Whether to simulate pressure based on velocity.
 * @param options.start Cap, taper and easing for the start of the line.
 * @param options.end Cap, taper and easing for the end of the line.
 * @param options.last Whether to handle the points as a completed stroke.
 */
export interface StrokeOptions {
    size?: number;
    thinning?: number;
    smoothing?: number;
    streamline?: number;
    easing?: (pressure: number) => number;
    simulatePressure?: boolean;
    start?: {
        cap?: boolean;
        taper?: number | boolean;
        easing?: (distance: number) => number;
    };
    end?: {
        cap?: boolean;
        taper?: number | boolean;
        easing?: (distance: number) => number;
    };
    last?: boolean;
}
/**
 * The points returned by `getStrokePoints`, and the input for `getStrokeOutlinePoints`.
 */
export interface StrokePoint {
    point: Vec2;
    pressure: number;
    distance: number;
    vector: Vec2;
    runningLength: number;
}
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