import * as geom from './index';
import { Point } from './Point';
import { Shape } from './Shape';
/**
 * A segment is a finite line with start and end points
 */
export declare class Segment extends Shape<Segment> {
    static EMPTY: Readonly<geom.Segment>;
    /** Start point */
    start: Point;
    /** End Point */
    end: Point;
    constructor();
    constructor(other: Segment);
    constructor(start: Point, end: Point);
    constructor(coords: [number, number, number, number]);
    constructor(x1: number, y1: number, x2: number, y2: number);
    /**
     * Return new cloned instance of segment
     */
    clone(): geom.Segment;
    get tag(): geom.ShapeTag;
    get name(): string;
    get box(): geom.Box;
    get center(): geom.Point;
    /**
     * Returns array of start and end point
     * @returns [Point,Point]
     */
    get vertices(): geom.Point[];
    /**
     * Length of a segment
     */
    get length(): number;
    /**
     * Slope of the line - angle to axe x in radians from 0 to 2PI
     */
    get slope(): number;
    get vector(): geom.Vector;
    /**
     * Returns true if equals to query segment, false otherwise
     */
    equalTo(seg: Segment): boolean;
    /**
     * Returns true if segment contains point
     */
    contains(pt: Point): boolean;
    /**
     * Returns array of intersection points between segment and other shape
     */
    intersect(shape: Shape): geom.Point[];
    /**
     * Calculate distance and shortest segment from segment to shape and return as array [distance, shortest segment]
     * @param shape Shape of the one of supported types Point, Line, Circle, Segment, Arc, Polygon or Planar Set
     * @returns {number} distance from segment to shape
     * @returns {[number, Segment]} shortest segment between segment and shape (started at segment, ended at shape)
     */
    distanceTo(shape: Shape): [number, Segment];
    /**
     * Returns unit vector in the direction from start to end
     */
    tangentInStart(): geom.Vector;
    /**
     * Return unit vector in the direction from end to start
     */
    tangentInEnd(): geom.Vector;
    /**
     * Returns new segment with swapped start and end points
     */
    reverse(): geom.Segment;
    /**
     * When point belongs to segment, return array of two segments split by given point,
     * if point is inside segment. Returns clone of this segment if query point is incident
     * to start or end point of the segment. Returns empty array if point does not belong to segment
     * @param point Query point
     */
    split(point: Point): geom.Segment[];
    splitAtLength(length: number): geom.Segment[];
    /**
     * Return middle point of the segment
     */
    middle(): geom.Point;
    /**
     * Get point at given length
     */
    pointAtLength(length: number): geom.Point;
    distanceToPoint(point: Point): number;
    definiteIntegral(ymin?: number): number;
    /**
     * Return new segment transformed using affine transformation matrix
     */
    transform(matrix: geom.Matrix): Segment;
    /**
     * Returns true if segment start is equal to segment end up to DP_TOL
     */
    isZeroLength(): boolean;
    /**
     * Sort given array of points from segment start to end, assuming all points lay on the segment
     */
    sortPoints(pts: Point[]): Point[];
}
/**
 * Shortcut method to create new segment
 */
export declare const segment: (x1: number, y1: number, x2: number, y2: number) => geom.Segment;
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