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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</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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// Cesium地形
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viewer.terrainProvider = Cesium.createWorldTerrain({
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requestWaterMask: true, // 请求水体效果所需要的海岸线数据
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requestVertexNormals: true// 请求地形照明数据
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});
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var billboard = viewer.entities.add({
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position: Cesium.Cartesian3.fromDegrees(-115.59777, 40.03883),
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billboard: {
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image: './icon.png',
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heightReference: Cesium.HeightReference.CLAMP_TO_GROUND, // 贴附地面
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scaleByDistance: new Cesium.NearFarScalar(2000000, 1.5, 8000000, 0.5),
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// scaleByDistance 根据摄像机的距离来设置缩放比例
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// Cesium.NearFarScalar （near:摄像机范围的下限，nearValue:摄像机范围下限的值，far:摄像机范围的上限，farValue:摄像机范围上限的值）
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// new Cesium.NearFarScalar(100, 0.8, 1000, 0.2)
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// 0-100米，缩放比固定为0.8
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// 100-1000米，缩放比随着距离变大，由0.8插值变成0.2
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// 1000米以上，缩放比固定为0.2
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// scaleByDistance 设置距离方位内，Billboard或Label的缩放比例
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// translucencyByDistance 设置距离方位内，Billboard或Label的半透明度比例
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// pixelOffsetScaleByDistance ： 设置距离方位内，Billboard或Label的偏移量比例
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scale: 1,
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show: true,
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// pixelOffset: new Cesium.Cartesian2(10, -10),
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horizontalOrigin: Cesium.HorizontalOrigin.CENTER,
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verticalOrigin: Cesium.VerticalOrigin.BOTTOM,
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width: 32,
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height: 32,
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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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