EventManager 事件管理类

属性

readonly id: string 唯一标识

方法

on 注册事件

 /**
   *@description 注册绑定事件
   *@param type 事件
   *@param listener 监听函数
   *@param scope this指向
   *@return removeCallback 移除事件回调
   */
on(type: PickType, listener: PickFn, scope?: any): () => void;

off 移除事件

off(type: EvenType, listener: Fn): boolean

事件回调参数类型

interface EventListenerParam {
  pick: PickEvent;  //对应所有的点击事件
  mouseMove: MouseMoveEvent; //鼠标移动事件
  scroll: number; // 滚轮滚动
  pinch: ScreenSpaceEventHandler.TwoPointEvent; // 两指触摸
  pinchMove: ScreenSpaceEventHandler.TwoPointMotionEvent; 
  camera: Camera; //相机
}

type PickType =
  | 'click'
  | 'dbclick'
  | 'clickDown'
  | 'clickUp'
  | 'rightClick'
  | 'rightDown'
  | 'rightUp'
  | 'middleClick'
  | 'middleDown'
  | 'middleUp';

export type PickEvent = {
  point: null | Point3d;
  target:
    | PickPrimitive
    | Cesium3DTileFeature
    | PickLabelCollection
    | PickBillboardCollection
    | PickPointCollection
    | PickLineCollection
    | PickPolygonCollection
    | null;
  property: Record<any, any>;
  event: ScreenSpaceEventHandler.PositionedEvent;
};

export type MouseMoveEvent = {
  point: PickEvent['point']; //点位
  target: PickEvent['target']; // 原始目标
  property: PickEvent['property']; //属性
  event: ScreenSpaceEventHandler.MotionEvent; //原始事件参数
};

事件列表

事件	描述
changed	相机位置变化
moveEnd	相机移动结束
moveStart	相机移动开始
click	左键点击
dbclick	左键双击
clickDown	左键按下
clickUp	左键放开
rightClick	右键点击
rightDown	右键按下
rightUp	右键放开
scroll	鼠标滚动
middleClick	鼠标中键点击
middleDown	鼠标中键按下
middleUp	鼠标中键放开
mouseMove	鼠标移动
pinchStart	两指触摸开始
pinchEnd	两指触摸结束
pinchMove	两指头触摸变化

clear 清除所有事件

  clear():void