import { Direction } from '../../math/geometry/direction';
import { LineSegment } from '../../math/geometry/lineSegment';
import { Point } from '../../math/geometry/point';
import { Rectangle } from '../../math/geometry/rectangle';
import { SegmentBase } from '../visibility/SegmentBase';
import { VisibilityEdge } from '../visibility/VisibilityEdge';
import { VisibilityVertex } from '../visibility/VisibilityVertex';
import { ScanDirection } from './ScanDirection';
export declare class StaticGraphUtility {
    static EdgeDirectionVE(edge: VisibilityEdge): Direction;
    static EdgeDirectionVV(source: VisibilityVertex, target: VisibilityVertex): Direction;
    static GetEdgeEnd(edge: VisibilityEdge, dir: Direction): VisibilityVertex;
    static FindAdjacentVertex(vertex: VisibilityVertex, dir: Direction): VisibilityVertex;
    static FindAdjacentEdge(a: VisibilityVertex, dir: Direction): VisibilityEdge;
    static FindBendPointBetween(sourcePoint: Point, targetPoint: Point, finalEdgeDir: Direction): Point;
    static SegmentIntersectionPPP(first: Point, second: Point, from: Point): Point;
    static SegmentIntersectionSP(seg: SegmentBase, from: Point): Point;
    static SegmentsIntersection(first: SegmentBase, second: SegmentBase): Point;
    static SegmentsIntersectLL(first: LineSegment, second: LineSegment): Point;
    static IntervalsOverlapSS(first: SegmentBase, second: SegmentBase): boolean;
    static IntervalsOverlapPPPP(start1: Point, end1: Point, start2: Point, end2: Point): boolean;
    static IntervalsAreCollinear(start1: Point, end1: Point, start2: Point, end2: Point): boolean;
    static IntervalsAreSame(start1: Point, end1: Point, start2: Point, end2: Point): boolean;
    static IntervalsIntersect(firstStart: Point, firstEnd: Point, secondStart: Point, secondEnd: Point): Point;
    static SegmentIntersectionEP(edge: VisibilityEdge, from: Point): Point;
    static PointIsOnSegmentPPP(first: Point, second: Point, test: Point): boolean;
    static PointIsOnSegmentSP(seg: SegmentBase, test: Point): boolean;
    static IsVerticalD(dir: Direction): boolean;
    static IsVerticalE(edge: VisibilityEdge): boolean;
    static IsVerticalPP(first: Point, second: Point): boolean;
    static IsVertical(seg: LineSegment): boolean;
    static IsAscending(dir: Direction): boolean;
    static Slope(start: Point, end: Point, scanDir: ScanDirection): number;
    static SortAscending(a: Point, b: Point): [Point, Point];
    static RectangleBorderIntersect(boundingBox: Rectangle, point: Point, dir: Direction): Point;
    static GetRectangleBound(rect: Rectangle, dir: Direction): number;
    static RectangleInteriorsIntersect(a: Rectangle, b: Rectangle): boolean;
    static PointIsInRectangleInterior(point: Point, rect: Rectangle): boolean;
}