新增点击地点标点，弹出地点信息弹窗功能

src/components/Pin.vue

@@ -53,6 +53,7 @@ let Cesium = null,
   viewer = null,
   handler = null;
 
+//标点动画
 const animetion = () => {
   setInterval(() => {
     if (0.5 <= jump.value < 1.1 && jumpSwitch.value) {
@@ -106,6 +107,7 @@ const insetLand = () => {
   });
 }
 
+//清除事件监听
 const clearDiv = (id) => {
   viewer.scene.postRender.removeEventListener(addDynamicLabel);
   handler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK);
@@ -121,6 +123,7 @@ const addDynamicLabel = (data) => {
   LandMarkWindow.windowShow = true;
   LandMarkWindow.hiddenWindow = false;
   let gisPosition = data.position._value;
+  //cesium 渲染事件监听
   viewer.scene.postRender.addEventListener(() => {
     const canvasHeight = viewer.scene.canvas.height;
     const windowPosition = new Cesium.Cartesian2();
@@ -133,6 +136,7 @@ const addDynamicLabel = (data) => {
     const elWidth = 300;
     let showBottom = canvasHeight - windowPosition.y + 240 + "px";
     let showLeft = windowPosition.x - elWidth / 2 + "px";
+    //使弹窗跟随标点移动
     LandMarkWindow.windowPosition.bottom = showBottom;
     LandMarkWindow.windowPosition.left = showLeft;
     const camerPosition = viewer.camera.position;
@@ -153,6 +157,7 @@ const addDynamicLabel = (data) => {
   });
   handler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK);
   handler.setInputAction(function (movement) {
+    //点击空白处触发
     LandMarkWindow.windowShow = false;
     LandMarkWindow.hiddenWindow = true;
     clearDiv();
@@ -175,8 +180,10 @@ watch(() => LandMarkWindow.flyToLand, (newValue, oldValue) => {
 const clickPin = () => {
   if (props.pintype == "landmark") {
     handler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK);
+    //cesium 监听鼠标事件
     handler.setInputAction(function (movement) {
       let pick = viewer.scene.pick(movement.position);
+      //点击标点时触发
       if (Cesium.defined(pick) && pick.id.id) {
         let id = pick.id.id;
         let entiy = viewer.entities.getById(id);