import { ICurve } from './icurve';
import { Point } from './point';
import { LineSegment } from './lineSegment';
import { Parallelogram } from './parallelogram';
export type PN = {
    parallelogram: Parallelogram;
    seg: ICurve;
    leafBoxesOffset: number;
    node: PNInternal | PNLeaf;
};
export declare function createPNLeaf(start: number, end: number, box: Parallelogram, seg: ICurve, eps: number): PN;
export type PNLeaf = {
    low: number;
    high: number;
    chord: LineSegment | null;
};
export type PNInternal = {
    children: PN[];
};
export declare class ParallelogramNode {
    static distToSegm(p: Point, s: Point, e: Point): number;
    static createParallelogramOnSubSeg(start: number, end: number, seg: ICurve): Parallelogram | undefined;
    static createParallelogramNodeForCurveSeg(start: number, end: number, seg: ICurve, eps: number): PN;
    static WithinEpsilon(seg: ICurve, start: number, end: number, eps: number): boolean;
    static createParallelogramNodeForCurveSegDefaultOffset(seg: ICurve): PN;
    static createNodeWithSegmentSplit(start: number, end: number, ell: ICurve, eps: number): PN;
}