import { Cartesian3 } from '@cesium/engine';
import { default as XViewer } from './XViewer.ts';
export declare enum EnumCameraFocus {
    God = 0,//上帝视角
    First = 1,//第一视角
    Follow = 2,//跟随
    Free = 3,//自由
    God2 = 4
}
/**
 * 统一控制摄像头视角的
 */
declare class CameraFocusHelper {
    private static _viewer;
    private static _isFollow;
    private static timer;
    private static _rebackFollowTime;
    private static _cameraFocus;
    /**
     * 上帝视角高度
     */
    private static _GodViewHeight;
    private static handler;
    private static _defaultFirstOffset;
    private static _selfFirstOffest;
    private static _defaultFollowOffset;
    private static _selfFollowOffset;
    private static _traceCallback;
    /**
     * 初始化，可以修改默认跟踪模式
     */
    static init(viewer: XViewer, cameraFocus?: EnumCameraFocus): void;
    static changeCameraFocus(cameraFocus?: EnumCameraFocus): void;
    private static clearTraceCallback;
    private static traceHandler;
    /**
     * 相机开始移动, 允许控制交互控制摄像头
     */
    static cameraMoveStartHandler(): void;
    static cameraMoveEndHandler(): void;
    /**
     * 恢复跟踪模式
     */
    private static rebackTrack;
    private static getEntity;
    /**
     * 设置恢复跟踪时间 ms
     * @param value 默认为5000ms
     */
    static setRebackFollowTime(value?: number): void;
    /**
     * 第一视角
     * @param offset 偏移量
     */
    private static firstView;
    /**
     * 修改设置第一视角的偏移量
     * @param offset
     */
    static setFirstViewOffset(offset?: Cartesian3): void;
    private static getFirstViewOffset;
    /**
     * 跟随视角
     * @param offset 偏移量
     */
    private static followView;
    static setFollowViewOffset(offset?: Cartesian3): void;
    private static getFollowViewOffset;
    /**
     * 上帝视角
     */
    private static godView;
    /**
   * 上帝视角2(只跟随，不沿着同方向)
   */
    private static godView2;
    /**
     * 改变上帝视角的高度
     * @param height 相对观察对象Entity的高度
     */
    static setGodViewHeight(height?: number): void;
    /**
     * 自由视角
     */
    static freeView(): void;
}
export default CameraFocusHelper;