import { Point } from '../../math/geometry/point';
import { RBTree } from '../../math/RBTree/rbTree';
import { VisibilityGraph } from '../visibility/VisibilityGraph';
import { ScanSegment } from './ScanSegment';
import { ScanSegmentTree } from './ScanSegmentTree';
declare class SegEvent {
    constructor(eventType: SegEventType, seg: ScanSegment);
    EventType: SegEventType;
    Segment: ScanSegment;
    get IsVertical(): boolean;
    get Site(): Point;
    ToString(): string;
}
declare enum SegEventType {
    VOpen = 0,
    VClose = 1,
    HOpen = 2
}
export declare class SegmentIntersector {
    eventList: Array<SegEvent>;
    findFirstHSeg: ScanSegment;
    visGraph: VisibilityGraph;
    verticalSegmentsScanLine: RBTree<ScanSegment>;
    findFirstPred: (s: ScanSegment) => boolean;
    segmentsWithoutVisibility: Array<ScanSegment>;
    constructor();
    IsVSegInHSegRange(v: ScanSegment): boolean;
    Generate(hSegments: Array<ScanSegment>, vSegments: Array<ScanSegment>): VisibilityGraph;
    OnSegmentOpen(seg: ScanSegment): void;
    OnSegmentClose(seg: ScanSegment): void;
    RemoveSegmentsWithNoVisibility(horizontalScanSegments: ScanSegmentTree, verticalScanSegments: ScanSegmentTree): void;
    ScanInsert(seg: ScanSegment): void;
    ScanRemove(seg: ScanSegment): void;
    ScanIntersect(hSeg: ScanSegment): void;
    Compare(first: SegEvent, second: SegEvent): number;
    CompareSS(first: ScanSegment, second: ScanSegment): number;
}
export {};