Czml Polygon

<!--
  示例：CZML 多边形挖洞
  说明：外环写在 positions，内环写在 holes.cartographicDegrees 的嵌套数组里
  核心逻辑：hole 顶点顺序与外环相反 → height 0 铺在椭球面 → CzmlDataSource.load
  依赖：CesiumJS 1.121 · jsDelivr CDN
-->
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta name="robots" content="noindex,follow">
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>CZML 多边形</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/cesium@1.121.0/Build/Cesium/Widgets/widgets.css">
<style>
  html,body{height:100%;margin:0}
  body{background:#0e1116;color:#e6e8ec;overflow:hidden;
       font:13px/1.6 -apple-system,"Segoe UI","PingFang SC",sans-serif}
  #c{height:100%}
  .cesium-viewer-bottom .cesium-widget-credits,.cesium-viewer-animationContainer,
  .cesium-viewer-timelineContainer{display:none!important}
</style>
</head>
<body>
<div id="c"></div>
<script src="https://cdn.jsdelivr.net/npm/cesium@1.121.0/Build/Cesium/Cesium.js"></script>
<script>
(function () {
  'use strict';

  var viewer = new Cesium.Viewer('c', {
    baseLayer: false,
    baseLayerPicker: false, geocoder: false, homeButton: false,
    sceneModePicker: false, navigationHelpButton: false,
    animation: false, timeline: false, fullscreenButton: false,
    infoBox: false, selectionIndicator: false
  });

  var scene = viewer.scene;
  scene.globe.baseColor = Cesium.Color.fromCssColorString('#1c2733');
  scene.backgroundColor = Cesium.Color.fromCssColorString('#0e1116');
  scene.skyBox.show = false;
  scene.moon.show = false;
  if (scene.skyAtmosphere) scene.skyAtmosphere.show = false;

  var data = [
    { id: 'document', name: '多边形', version: '1.0' },
    {
      id: 'polygon-solid',
      name: '实心多边形',
      position: { cartographicDegrees: [116.362, 39.902, 0] },
      polygon: {
        positions: {
          cartographicDegrees: [
            116.336, 39.884, 0,
            116.388, 39.886, 0,
            116.386, 39.920, 0,
            116.334, 39.916, 0
          ]
        },
        height: 0,
        material: { solidColor: { color: { rgba: [77, 155, 255, 165] } } },
        outline: true,
        outlineColor: { rgba: [200, 224, 255, 235] }
      }
    },
    {
      id: 'polygon-holes',
      name: '带两个洞的多边形',
      position: { cartographicDegrees: [116.420, 39.902, 60] },
      polygon: {
        positions: {
          cartographicDegrees: [
            116.396, 39.884, 60,
            116.446, 39.886, 60,
            116.448, 39.922, 60,
            116.394, 39.920, 60
          ]
        },
        holes: {
          cartographicDegrees: [
            [116.404, 39.892, 60, 116.404, 39.904, 60, 116.418, 39.904, 60, 116.418, 39.892, 60],
            [116.426, 39.900, 60, 116.438, 39.902, 60, 116.430, 39.912, 60]
          ]
        },
        height: 60,
        material: { solidColor: { color: { rgba: [240, 170, 70, 165] } } },
        outline: true,
        outlineColor: { rgba: [255, 226, 184, 235] }
      }
    },
    {
      id: 'caption',
      position: { cartographicDegrees: [116.392, 39.870, 0] },
      label: {
        text: '左：实心　右：holes 挖出两个洞',
        font: '500 13px "Microsoft YaHei", sans-serif',
        fillColor: { rgba: [216, 230, 246, 255] },
        disableDepthTestDistance: Number.POSITIVE_INFINITY
      }
    }
  ];

  Cesium.CzmlDataSource.load(data).then(function (ds) {
    viewer.dataSources.add(ds);
  });

  viewer.camera.flyTo({
    destination: Cesium.Cartesian3.fromDegrees(116.392, 39.856, 15000),
    orientation: {
      heading: 0,
      pitch: Cesium.Math.toRadians(-45),
      roll: 0
    },
    duration: 0
  });
})();
</script>
</body>
</html>