/** @packageDocumentation
 * @module OrbitGT
 */
declare type float64 = number;
/**
 * Class Coordinate defines a 3D XYZ coordinate.
 */
/** @internal */
export declare class Coordinate {
    x: float64;
    y: float64;
    z: float64;
    constructor(x: float64, y: float64, z: float64);
    static create(): Coordinate;
    static fromXY(x: float64, y: float64): Coordinate;
    static fromXYZ(x: float64, y: float64, z: float64): Coordinate;
    getX(): float64;
    setX(x: float64): void;
    getY(): float64;
    setY(y: float64): void;
    getZ(): float64;
    setZ(z: float64): void;
    set(point: Coordinate): void;
    setXYZ(x: float64, y: float64, z: float64): void;
    clear(): void;
    isZero(): boolean;
    isNonZero(): boolean;
    same(other: Coordinate): boolean;
    same2D(other: Coordinate): boolean;
    distance3D(other: Coordinate): float64;
    distance2D(other: Coordinate): float64;
    getLength(): float64;
    normalize0(): Coordinate;
    normalize(): Coordinate;
    copy(): Coordinate;
    add0(point: Coordinate): Coordinate;
    add(point: Coordinate): Coordinate;
    subtract0(point: Coordinate): Coordinate;
    subtract(point: Coordinate): Coordinate;
    scale0(f: float64): Coordinate;
    scale(f: float64): Coordinate;
    crossProduct0(point: Coordinate): Coordinate;
    crossProduct(point: Coordinate): Coordinate;
    dotProduct(point: Coordinate): float64;
    toString(): string;
    /**
     * Get the angle between two directions.
     * @param direction1 the first direction.
     * @param direction2 the second direction.
     * @return the angle between the directions, in radians from 0.0 to PI (never negative).
     */
    static getAngleRad(direction1: Coordinate, direction2: Coordinate): float64;
    /**
     * Get the angle between two directions.
     * @param direction1 the first direction.
     * @param direction2 the second direction.
     * @return the angle between the directions, in degrees from 0.0 to 180.0 (never negative).
     */
    static getAngleDeg(direction1: Coordinate, direction2: Coordinate): float64;
}
export {};
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