mirror of
https://github.com/jiawanlong/Cesium-Examples.git
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83 lines
2.7 KiB
HTML
83 lines
2.7 KiB
HTML
<!--********************************************************************
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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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<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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</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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const viewer = new Cesium.Viewer('map', {
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imageryProvider: false,
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baseLayerPicker: false,
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});
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var imageryProvider = new Cesium.SingleTileImageryProvider({
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"url": "./world_b.jpg",
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id: '1'
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})
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viewer.imageryLayers.addImageryProvider(imageryProvider)
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/*
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使用场景总结
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场景 描述 示例
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动态位置 随时间移动的对象 卫星、飞机、车辆轨迹
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动态视觉 改变颜色、大小等 警报闪烁、状态指示器
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交互反馈 响应用户操作 点击效果、悬停高亮
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数据可视化 实时数据展示 传感器数据、实时监控
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复杂动画 物理模拟、高级运动 弹道轨迹、粒子效果
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程序化生成 算法生成形状 分形、噪声地形
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*/
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// 模拟websocket请求数据，实时的改变位置
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let x = -120;
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let y = 40;
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setInterval(function () {
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x = x + 0.1;
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}, 50);
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const movingPoint = viewer.entities.add({
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position: new Cesium.CallbackProperty(function (time, result) {
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console.log(time);
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return Cesium.Cartesian3.fromDegrees(x, y);
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}),
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point: {
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pixelSize: 20,
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color: Cesium.Color.YELLOW
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}
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});
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// 闪烁效果
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let opacity = 1;
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let color = new Cesium.CallbackProperty(function (time, result) {
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if (opacity > 1 || opacity == 1) {
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opacity = 0;
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}
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if (opacity < 1) {
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opacity += 0.1;
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}
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return Cesium.Color.fromCssColorString('#FF0000').withAlpha(opacity)
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}, false);
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const movingPoint2 = viewer.entities.add({
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position: Cesium.Cartesian3.fromDegrees(-120, 30),
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point: {
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pixelSize: 20,
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color: color
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}
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});
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</script>
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</body>
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</html> |