/**
 * _compassDirectionRef
 */
export declare const CompassDirectionRefEnum: {
    /** Undefined value */
    readonly UNKNOWN: "UNKNOWN";
    /**
     * If GPS positioning is available, record in true north;
     * if GPS is off or not available, record in magnetic north.
     */
    readonly AUTO: "AUTO";
    /**
     * If the azimuth is set to true north, GPS is turned off, or positioning is not possible,
     * the azimuth information is not recorded (positioning information is required for conversion).
     */
    readonly TRUE_NORTH: "TRUE_NORTH";
    /**
     * Do not set azimuth to true north, set azimuth to magnetic north
     */
    readonly MAGNETIC: "MAGNETIC";
};
/** type definition of CompassDirectionRefEnum */
export type CompassDirectionRefEnum = (typeof CompassDirectionRefEnum)[keyof typeof CompassDirectionRefEnum];
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