scene.pick返回的是包含给定窗口位置基元的对象

scene.drillpack返回的是给定窗口位置所有对象的列表

Globe.pick返回的是给光线和地形的交点

Cesium.ScreenSpaceEventType.MIDDLE_CLICK 鼠标中间点击事件

Cesium.ScreenSpaceEventType.MOUSE_MOVE 鼠标移入事件

Cesium.ScreenSpaceEventType.RIGHT_CLICK 鼠标右击事件

Cesium.Ion.defaultAccessToken = '';var viewer = new Cesium.Viewer('cesiumContainer', {animation: false,timeline: false
});var position = new Cesium.Cartesian3.fromDegrees(116.39, 38.9, 0.0);
const entity = viewer.entities.add({id:'BlueModel',position: position,plane: {plane: new Cesium.Plane(Cesium.Cartesian3.UNIT_X, 0.0),dimensions: new Cesium.Cartesian2(400, 300),material: "../testdata/test.png",outline: true,outlineColor: Cesium.Color.BLACK  },description:`<div><img width="100%" height="300px" src="../testdata/data.png"><h3>你好呀</h3><h3>欢迎学习cesium</h3></div>` 
}) viewer.trackedEntity = entity;  //将摄像机视口快速绑定到模型位置 var handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
handler.setInputAction(function (movement){var pick = viewer.scene.pick(movement.position);if(Cesium.defined(pick) && (pick.id.id ==='BlueModel')){alert("欢迎加入")}
},Cesium.ScreenSpaceEventType.LEFT_CLICK);  //监听鼠标左键点击事件 

参考链接 9、cesium使用entity进行页面交互效果 - 哔哩哔哩