/**
 * @module Spline
 */
/**
 * Spline class
 * <br><img src="./media/examples/spline.png" alt="spline demo"/>
 * @class
 * @extends {module:Line}
 */
export default class Spline {
    /**
     * @inheritDoc
     * @param {Object} definition - Spline definition
     * @return {Spline}
     */
    static from(definition: any): Spline;
    /**
     * Default ratio of tension
     * @type {Number}
     */
    static get defaultTension(): number;
    /**
     * Draw a spline through points using a tension (first point should be current position)
     * @param {Path2D|CanvasRenderingContext2D} path - Current drawing path
     * @param {Array<PositionDefinition>} points - Points to use (need at least 2 points)
     * @param {Number} [tension=Spline.defaultTension] - Ratio of tension
     * @param {PositionDefinition} [_correction] - Apply position correction to all points (used by the library)
     */
    static splineThrough(path: Path2D | CanvasRenderingContext2D, points: Array<PositionDefinition>, tension?: number, _correction?: PositionDefinition): void;
    /**
     * Spline constructor
     * @param {PositionDefinition} positionDefinition - First point
     * @param {Array<PositionDefinition>|PositionDefinition} points - Set of points to go through or a single target point
     * @param {Number} [tension=Spline.defaultTension] - Ratio of tension between points (0 means straight line, can take any value, but with weird results above 1)
     * @param {LineOptions} [options] - Drawing options
     */
    constructor(positionDefinition: PositionDefinition, points: Array<PositionDefinition> | PositionDefinition, tension?: number, options?: LineOptions);
    /**
     * @type {Number}
     */
    tension: number;
    /**
     * Draw the spline
     * @param {Path2D} path - Current drawing path
     * @return {Spline} Itself
     */
    trace(path: Path2D): Spline;
    /**
     * @inheritDoc
     */
    toJSON(): any;
}