/**
 * An infinite plane. Internally it's represented in a parametric equation form:
 * ax + by + cz + distance = 0.
 *
 * @category Math
 */
export class Plane {
    /**
     * Create a new Plane instance.
     *
     * @param {Vec3} [normal] - Normal of the plane. The constructor copies this parameter. Defaults
     * to {@link Vec3.UP}.
     * @param {number} [distance] - The distance from the plane to the origin, along its normal.
     * Defaults to 0.
     */
    constructor(normal?: Vec3, distance?: number);
    /**
     * The normal of the plane.
     *
     * @type {Vec3}
     */
    normal: Vec3;
    /**
     * The distance from the plane to the origin, along its normal.
     *
     * @type {number}
     */
    distance: number;
    /**
     * Sets the plane based on a specified normal and a point on the plane.
     *
     * @param {Vec3} point - The point on the plane.
     * @param {Vec3} normal - The normal of the plane.
     * @returns {Plane} Self for chaining.
     */
    setFromPointNormal(point: Vec3, normal: Vec3): Plane;
    /**
     * Test if the plane intersects between two points.
     *
     * @param {Vec3} start - Start position of line.
     * @param {Vec3} end - End position of line.
     * @param {Vec3} [point] - If there is an intersection, the intersection point will be copied
     * into here.
     * @returns {boolean} True if there is an intersection.
     */
    intersectsLine(start: Vec3, end: Vec3, point?: Vec3): boolean;
    /**
     * Test if a ray intersects with the infinite plane.
     *
     * @param {import('./ray.js').Ray} ray - Ray to test against (direction must be normalized).
     * @param {Vec3} [point] - If there is an intersection, the intersection point will be copied
     * into here.
     * @returns {boolean} True if there is an intersection.
     */
    intersectsRay(ray: import("./ray.js").Ray, point?: Vec3): boolean;
    /**
     * Copies the contents of a source Plane.
     *
     * @param {Plane} src - The Plane to copy from.
     * @returns {Plane} Self for chaining.
     */
    copy(src: Plane): Plane;
    /**
     * Returns a clone of the Plane.
     *
     * @returns {this} A duplicate Plane.
     */
    clone(): this;
}
import { Vec3 } from '../math/vec3.js';