/**
 * Global constant CW defines clockwise direction of arc
 */
export declare const CW = true;
/**
 * Global constant CCW defines counterclockwise direction of arc
 */
export declare const CCW = false;
/**
 * Defines orientation for face of the polygon: clockwise, counterclockwise
 * or not orientable in the case of self-intersection
 */
export declare const ORIENTATION: {
    CW: number;
    CCW: number;
    NOT_ORIENTABLE: number;
};
export declare const TAU: number;
export declare enum Inclusion {
    INSIDE = 1,
    OUTSIDE = 0,
    BOUNDARY = 2
}
export declare enum Overlap {
    SAME = 1,
    OPPOSITE = 2
}
export declare const NOT_VERTEX = 0;
export declare const START_VERTEX = 1;
export declare const END_VERTEX = 2;
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