<!DOCTYPE html>
<html lang="ch-en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <link rel="stylesheet" href="./js/Cesium-1.72/Build/Cesium/Widgets/widgets.css">
    <style>
        #map3d {
            height: 1000px;
            width: 1000px;
            margin: 0 auto;
        }
    </style>
</head>
<body>
<div id="map3d"></div>
</body>
<script src="./js/Cesium-1.72/Build/Cesium/Cesium.js"></script>
<script src="./js/jQuery.js"></script>
<script>
    viewer = new Cesium.Viewer('map3d', {
        selectionIndicator: false,
        animation: false,
        baseLayerPicker: false,
        timeline: false,
        sceneModePicker: false,
        navigationHelpButton: false,
        fullscreenButton: false,
        imageryProvider: new Cesium.WebMapTileServiceImageryProvider({
            url: 'http://t0.tianditu.gov.cn/img_w/wmts?tk=7fdca056b488529020b96dd0a6891579',
            layer: 'img',
            style: 'default',
            tileMatrixSetID: 'w',
            format: 'tiles',
            tileHeight: 0,
            maximumLevel: 18
        }),
    });
    const json = {
        "type": "Polygon",
        "coordinates": [[[106.818340748, 35.345186594], [106.912227457, 35.857950428], [107.235357796, 35.9277981500001], [107.730486478, 36.022622105], [107.85655614, 35.8806908460001], [107.822121228, 35.5285600620001], [107.584770259, 35.2284864530001], [107.376631529, 35.1572428380001], [107.022823644, 35.1807053140001], [106.988349662, 35.2733902210001], [106.818340748, 35.345186594]]]
    }
    let data = []
    json.coordinates[0].forEach(item => {
        data.push(Cesium.Cartesian3.fromDegrees(item[0], item[1]))
    })
    let entity = new Cesium.Entity({
        id: `${new Date().getTime()}面`,
        name: "线几何对象",
        show: true,
        polygon: {
            hierarchy: new Cesium.PolygonHierarchy(data),
            material: Cesium.Color.RED.withAlpha(0.65),
            perPositionHeight: true,
        }
    });
    viewer.entities.add(entity);
</script>
</html>

Cesium：添加多边形_3d