import type { Point3 } from '../../types';
import { Vector3 } from '../geometry';
import Curve from './Curve';
/**
 * Utility class for manipulating 3D polylines
 *
 * @exports
 * @class PolylineCurve3
 * @extends Curve<Vector3>
 */
export default class PolylineCurve3 extends Curve<Vector3> {
    readonly type: string;
    /**
     * Array of points defining the curve
     */
    points: Point3[];
    /**
     * @param {Point3[]} [points] Array of points defining the curve
     */
    constructor(points?: Point3[]);
    /**
     * Interpolate a point on this curve
     *
     * @param {number} t Normalized time value to interpolate
     * @returns {Vector3} Interpolated coordinates on this curve
     */
    getPoint(t: number): Vector3;
}