import { Polyline } from '../../math/geometry';
import { Point } from '../../math/geometry/point';
import { PolylinePoint } from '../../math/geometry/polylinePoint';
import { PointMap } from '../../utils/PointMap';
import { VisibilityEdge } from './VisibilityEdge';
import { VisibilityVertex } from './VisibilityVertex';
export declare class VisibilityGraph {
    activeVertices: Set<VisibilityVertex>;
    private edges_;
    get Edges(): IterableIterator<VisibilityEdge>;
    ClearPrevEdgesTable(): void;
    ShrinkLengthOfPrevEdge(v: VisibilityVertex, lengthMultiplier: number): void;
    PreviosVertex(v: VisibilityVertex): VisibilityVertex;
    SetPreviousEdge(v: VisibilityVertex, e: VisibilityEdge): void;
    VertexFactory: (p: Point) => VisibilityVertex;
    pointToVertexMap: PointMap<VisibilityVertex>;
    AddHole(polyline: Polyline): void;
    static OrientHolesClockwise(holes: Iterable<Polyline>): IterableIterator<Polyline>;
    AddVertexP(point: Point): VisibilityVertex;
    AddVertexV(vertex: VisibilityVertex): void;
    ContainsVertex(point: Point): boolean;
    static AddEdgeVV(source: VisibilityVertex, target: VisibilityVertex): VisibilityEdge;
    AddEdgePlPl(source: PolylinePoint, target: PolylinePoint): void;
    static AddEdge(edge: VisibilityEdge): void;
    AddEdgeF(source: Point, target: Point, edgeCreator: (a: VisibilityVertex, b: VisibilityVertex) => VisibilityEdge): VisibilityEdge;
    AddEdgePP(source: Point, target: Point): VisibilityEdge;
    FindVertex(point: Point): VisibilityVertex;
    Vertices(): IterableIterator<VisibilityVertex>;
    RemoveVertex(vertex: VisibilityVertex): void;
    FindEdgePP(source: Point, target: Point): VisibilityEdge;
    static RemoveEdge(edge: VisibilityEdge): void;
    ClearEdges(): void;
}