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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viewer.imageryLayers.remove(viewer.imageryLayers.get(0));
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// ImageryLayer
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// ImageryLayerCollection
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// ImageryProvider
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// ImageryProvider子类
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// https://cesium.com/learn/cesiumjs/ref-doc/ImageryLayer.html#.ConstructorOptions
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var imageryProvider = new Cesium.SingleTileImageryProvider({
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"url": "./world_b.jpg",
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})
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let options = {
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alpha: 0.9,
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hue: 0.3,
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saturation: 0.3,
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gamma: 0.3,
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}
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var imageryLayer = new Cesium.ImageryLayer(imageryProvider, options);
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viewer.imageryLayers.add(imageryLayer)
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imageryLayer.alpha = 0.5
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</script>
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</body>
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</html>
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