2025-03-11 08:25:45 +00:00
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<!--********************************************************************
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* by jiawanlong
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*********************************************************************-->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8" />
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2025-03-19 03:00:22 +00:00
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<link rel="stylesheet" href="./../../libs/cesium/Cesium1.98/Widgets/widgets.css">
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<script type="text/javascript" src="./../../libs/cesium/Cesium1.98/Cesium.js"></script>
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2025-03-11 08:25:45 +00:00
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</head>
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<body style="margin: 0; overflow: hidden; background: #fff; width: 100%; height: 100%; position: absolute; top: 0">
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<div id="map" style="margin: 0 auto; width: 100%; height: 100%"></div>
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<script type="text/javascript">
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Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiI3ZjQ5ZGUzNC1jNWYwLTQ1ZTMtYmNjYS05YTY4ZTVmN2I2MDkiLCJpZCI6MTE3MTM4LCJpYXQiOjE2NzY0NDUyODB9.ZaNSBIfc1sGLhQd_xqhiSsc0yr8oS0wt1hAo9gbke6M'
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const viewer = new Cesium.Viewer('map', {});
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// 开启帧率
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viewer.scene.debugShowFramesPerSecond = true;
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// 加载离线地形
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// viewer.terrainProvider = new Cesium.CesiumTerrainProvider({
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// url: 'http://localhost/dem_30m/',
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// });
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// 0、取消默认的单击和双击事件，右上角弹窗很丑
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viewer.cesiumWidget.screenSpaceEventHandler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK);
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viewer.cesiumWidget.screenSpaceEventHandler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);
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// https://blog.csdn.net/u010358183/article/details/121610901
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// 1、屏幕空间事件（鼠标和键盘输入相关的事件）
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// 鼠标事件
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// 键盘事件
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// 2、相机事件
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// 3、场景触发事件
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// 1、-----------屏幕空间事件（鼠标和键盘输入相关的事件）-----------------------
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// 左单击
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let handler = new Cesium.ScreenSpaceEventHandler(viewer.scene.canvas);
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handler.setInputAction(function (event) {
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console.log('左键单击', event.position);
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}, Cesium.ScreenSpaceEventType.LEFT_CLICK);
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handler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK);
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// shift + 左单击
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handler.setInputAction(function (event) {
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console.log('shift + 左键单击', event.position);
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}, Cesium.ScreenSpaceEventType.LEFT_CLICK, Cesium.KeyboardEventModifier.SHIFT);
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handler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK, Cesium.KeyboardEventModifier.SHIFT);
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// 2、--------------相机事件（更改默认操作）----------
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viewer.scene.screenSpaceCameraController.tiltEventTypes = [
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Cesium.CameraEventType.RIGHT_DRAG,
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Cesium.CameraEventType.PINCH,
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{
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eventType: Cesium.CameraEventType.LEFT_DRAG,
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modifier: Cesium.KeyboardEventModifier.CTRL,
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},
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{
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eventType: Cesium.CameraEventType.RIGHT_DRAG,
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modifier: Cesium.KeyboardEventModifier.CTRL,
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},
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];
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viewer.scene.screenSpaceCameraController.zoomEventTypes = [
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Cesium.CameraEventType.MIDDLE_DRAG,
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Cesium.CameraEventType.WHEEL,
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Cesium.CameraEventType.PINCH,
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];
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//----------- 3、场景触发事件(相机停止移动时触发，二三维联动)-------------------------
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function callbackFunc(event) {
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console.log(event)
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}
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viewer.camera.moveEnd.addEventListener(callbackFunc);
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// viewer.camera.moveEnd.removeEventListender(callbackFunc);
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// 常见的应用
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const redPolygon = viewer.entities.add({
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name: "贴地面",
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polygon: {
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hierarchy: Cesium.Cartesian3.fromDegreesArray([
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-115.0,
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37.0,
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-115.0,
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32.0,
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-107.0,
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33.0,
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-102.0,
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31.0,
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-102.0,
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35.0,
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]),
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material: Cesium.Color.RED.withAlpha(0.5),
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},
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data: {
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name: 'hello'
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}
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});
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handler.setInputAction(function (clickEvent) {
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// 经纬度坐标
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var position = viewer.scene.camera.pickEllipsoid(clickEvent.position, viewer.scene.globe.ellipsoid);
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var cartesian3 = new Cesium.Cartesian3(position.x, position.y, position.z)
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var cartographic = viewer.scene.globe.ellipsoid.cartesianToCartographic(cartesian3);
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var lat = Cesium.Math.toDegrees(cartographic.latitude);
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var lng = Cesium.Math.toDegrees(cartographic.longitude);
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console.log(lng, lat)
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console.log(cartesian3)
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// 获取被点击的实体
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var ray1 = viewer.camera.getPickRay(clickEvent.position);
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var cartesian = viewer.scene.globe.pick(ray1, viewer.scene);
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var pick = viewer.scene.pickPosition(clickEvent.position);
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var pickEd = viewer.scene.pick(clickEvent.position);
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if (pickEd && pick) {
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console.log(pickEd.id.data)
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}
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}, Cesium.ScreenSpaceEventType.LEFT_CLICK)
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</script>
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</body>
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</html>
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