2025-03-11 08:25:45 +00:00
|
|
|
|
<!--********************************************************************
|
|
|
|
|
|
* by jiawanlong
|
|
|
|
|
|
*********************************************************************-->
|
|
|
|
|
|
<!DOCTYPE html>
|
|
|
|
|
|
<html>
|
|
|
|
|
|
|
|
|
|
|
|
<head>
|
|
|
|
|
|
<meta charset="UTF-8" />
|
2025-03-19 03:00:22 +00:00
|
|
|
|
<link rel="stylesheet" href="./../../libs/cesium/Cesium1.98/Widgets/widgets.css">
|
|
|
|
|
|
<script type="text/javascript" src="./../../libs/cesium/Cesium1.98/Cesium.js"></script>
|
2025-03-11 08:25:45 +00:00
|
|
|
|
</head>
|
|
|
|
|
|
|
|
|
|
|
|
<body style="margin: 0; overflow: hidden; background: #fff; width: 100%; height: 100%; position: absolute; top: 0">
|
|
|
|
|
|
<div id="map" style="margin: 0 auto; width: 100%; height: 100%"></div>
|
|
|
|
|
|
<script type="text/javascript">
|
|
|
|
|
|
|
2025-05-29 02:59:44 +00:00
|
|
|
|
Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiIyNDMxOTA2NS1lY2Q3LTQ0YmUtOTE1Mi1iNWE2OGYwZjc0MjkiLCJpZCI6MjM1NjMwLCJpYXQiOjE3MzA3MjQzMTJ9.Xhu-9FyVEyqBKWEr0V9Sybt-elTCWHt9peL9-mNh-4E'
|
2025-03-11 08:25:45 +00:00
|
|
|
|
const viewer = new Cesium.Viewer('map', {});
|
|
|
|
|
|
|
|
|
|
|
|
let position = new Cesium.Cartesian3.fromDegrees(120, 30, 100000);
|
|
|
|
|
|
// 给定飞行一周所需时间，比如10s, 那么每秒转动度数
|
|
|
|
|
|
var angle = 360 / 10;
|
|
|
|
|
|
// 给定相机距离点多少距离飞行，这里取值为5000m
|
|
|
|
|
|
var distance = 500000;
|
|
|
|
|
|
var heading = Cesium.Math.toRadians(0);
|
|
|
|
|
|
var pitch = Cesium.Math.toRadians(-30);
|
|
|
|
|
|
|
|
|
|
|
|
var startTime = Cesium.JulianDate.fromDate(new Date());
|
|
|
|
|
|
|
|
|
|
|
|
var stopTime = Cesium.JulianDate.addSeconds(startTime, 10, new Cesium.JulianDate());
|
|
|
|
|
|
|
|
|
|
|
|
viewer.clock.startTime = startTime.clone(); // 开始时间
|
|
|
|
|
|
viewer.clock.stopTime = stopTime.clone(); // 结速时间
|
|
|
|
|
|
viewer.clock.currentTime = startTime.clone(); // 当前时间
|
|
|
|
|
|
viewer.clock.clockRange = Cesium.ClockRange.CLAMPED; // 行为方式
|
|
|
|
|
|
viewer.clock.clockStep = Cesium.ClockStep.SYSTEM_CLOCK; // 时钟设置为当前系统时间; 忽略所有其他设置。
|
|
|
|
|
|
// 相机的当前heading
|
|
|
|
|
|
var initialHeading = viewer.camera.heading;
|
|
|
|
|
|
var Exection = function TimeExecution() {
|
|
|
|
|
|
// 当前已经过去的时间，单位s
|
|
|
|
|
|
var delTime = Cesium.JulianDate.secondsDifference(viewer.clock.currentTime, viewer.clock.startTime);
|
|
|
|
|
|
var heading = Cesium.Math.toRadians(delTime * angle) + initialHeading;
|
|
|
|
|
|
viewer.scene.camera.setView({
|
|
|
|
|
|
destination: position, // 点的坐标
|
|
|
|
|
|
orientation: {
|
|
|
|
|
|
heading: heading,
|
|
|
|
|
|
pitch: pitch,
|
|
|
|
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
});
|
|
|
|
|
|
viewer.scene.camera.moveBackward(distance);
|
|
|
|
|
|
if (Cesium.JulianDate.compare(viewer.clock.currentTime, viewer.clock.stopTime) >= 0) {
|
|
|
|
|
|
viewer.clock.onTick.removeEventListener(Exection);
|
|
|
|
|
|
}
|
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
viewer.clock.onTick.addEventListener(Exection);
|
|
|
|
|
|
</script>
|
|
|
|
|
|
</body>
|
|
|
|
|
|
|
|
|
|
|
|
</html>
|
