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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<script src="./turf.min.js"></script>
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<script src="./lodash.min.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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let aaa
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2025-05-29 02:59:44 +00:00
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Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiIyNDMxOTA2NS1lY2Q3LTQ0YmUtOTE1Mi1iNWE2OGYwZjc0MjkiLCJpZCI6MjM1NjMwLCJpYXQiOjE3MzA3MjQzMTJ9.Xhu-9FyVEyqBKWEr0V9Sybt-elTCWHt9peL9-mNh-4E'
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2025-03-11 08:25:45 +00:00
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const viewer = new Cesium.Viewer('map', {
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});
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// 开启帧率
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viewer.scene.debugShowFramesPerSecond = true;
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// 深度监测
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viewer.scene.globe.depthTestAgainstTerrain = true;
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viewer.camera.setView({
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destination: Cesium.Cartesian3.fromDegrees(98.71707797694049, 27.677299704639537, 60000.0)
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});
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// 点缓冲
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var point = turf.point([98.71707797694049, 27.677299704639537]);
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var buffered = turf.buffer(point, 2, { units: 'kilometers' });
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var pointBufferJson = buffered.geometry.coordinates[0];
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console.log(pointBufferJson)
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viewer.entities.add({
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name: "最简单的贴地面",
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polygon: { // lodash把二维数组压成一维数组
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hierarchy: Cesium.Cartesian3.fromDegreesArray(_.flatten(pointBufferJson)),
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material: Cesium.Color.RED.withAlpha(0.5),
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},
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});
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// 贴地线
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var hello = viewer.entities.add({
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name: 'hello world',
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polyline: {
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positions: Cesium.Cartesian3.fromDegreesArray([98.676842346815, 27.571578111198868,
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98.86252156624968, 27.77444519911974,
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98.76756234288729, 27.800244194152533]),
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width: 3,
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material: Cesium.Color.RED,
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clampToGround: true,//贴地画线
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}
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});
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// 线缓冲1
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var line = turf.lineString([[98.676842346815, 27.571578111198868], [98.86252156624968, 27.77444519911974], [98.76756234288729, 27.800244194152533]]);
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var buffered = turf.buffer(line, 0.5, { units: 'kilometers' });
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var pointBufferJson = buffered.geometry.coordinates[0];
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viewer.entities.add({
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polygon: {
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hierarchy: Cesium.Cartesian3.fromDegreesArray(_.flatten(pointBufferJson)),
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material: Cesium.Color.BLUE.withAlpha(0.5),
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},
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});
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// 线缓冲2
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var buffered2 = turf.buffer(line, 0.7, { units: 'kilometers' });
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var pointBufferJson = buffered2.geometry.coordinates[0];
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viewer.entities.add({
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polygon: {
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hierarchy: Cesium.Cartesian3.fromDegreesArray(_.flatten(pointBufferJson)),
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material: Cesium.Color.YELLOW.withAlpha(0.5),
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},
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});
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</script>
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</body>
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</html>
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