Cesium-Examples/examples/cesiumEx/2.3.7、geojson.html
2025-05-29 10:59:44 +08:00

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HTML

<!--********************************************************************
* by jiawanlong
*********************************************************************-->
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8" />
<link rel="stylesheet" href="./../../libs/cesium/Cesium1.98/Widgets/widgets.css">
<script type="text/javascript" src="./../../libs/cesium/Cesium1.98/Cesium.js"></script>
</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">
Cesium.Ion.defaultAccessToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiIyNDMxOTA2NS1lY2Q3LTQ0YmUtOTE1Mi1iNWE2OGYwZjc0MjkiLCJpZCI6MjM1NjMwLCJpYXQiOjE3MzA3MjQzMTJ9.Xhu-9FyVEyqBKWEr0V9Sybt-elTCWHt9peL9-mNh-4E'
const viewer = new Cesium.Viewer('map', {});
// Cesium地形
viewer.terrainProvider = Cesium.createWorldTerrain({
requestWaterMask: true, // 请求水体效果所需要的海岸线数据
requestVertexNormals: true// 请求地形照明数据
});
// 开启帧率
viewer.scene.debugShowFramesPerSecond = true;
var promise = Cesium.GeoJsonDataSource.load('./geojson_mian.json', {
clampToGround: true, //贴地
fill: Cesium.Color.PINK.withAlpha(0.6),
});
promise.then(function (dataSource) {
viewer.dataSources.add(dataSource);
var entities = dataSource.entities.values;
for (var o = 0; o < entities.length; o++) {
var r = entities[o];
r.polygon.extrudedHeight = Number(r._properties._nums._value) * 100 // 拉伸高度
r.polygon.outlineColor = Cesium.Color.BLUE.withAlpha(0.9) //只有自身有高度才会显示边
}
});
viewer.flyTo(promise);
</script>
</body>
</html>