export declare const TOLERANCE = 0.000001;
export declare const TOLERANCE_HALF: number;
export declare const TOLERANCE_SQUARE: number;
export declare const TOLERANCE_SAGITTA = 1;
export declare class Tolerance {
    static COS_TOL: number;
    static DIST_TOL: number;
    static NUM_TOL: number;
    static global: Tolerance;
    static setGlobal(cosTol: number, distTol: number, numTol: number): void;
    cosTol: number;
    distTol: number;
    numTol: number;
    constructor(cosTol?: number, distTol?: number, numTol?: number);
    /**
     * set cosTol by given angle
     * @param angle
     * @param isRadian true means the angle is radian, false means the angle is degree
     */
    setCosTolByAngle(angle: number, isRadian: boolean): void;
    clone(): Tolerance;
}