Czml Point

<!--
  示例：用 CZML 描述几种不同样式的点
  说明：pixelSize、color、描边与 disableDepthTestDistance 全在 CZML 里配置
  核心逻辑：CzmlDataSource.load → dataSources.add → 相机俯视
  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 点</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.sun.show = false;
  scene.moon.show = false;
  if (scene.skyAtmosphere) scene.skyAtmosphere.show = false;

  var data = [
    { id: 'document', name: '点', version: '1.0' },
    {
      id: 'p1',
      name: '小点',
      position: { cartographicDegrees: [116.352, 39.900, 0] },
      point: {
        pixelSize: 6,
        color: { rgba: [120, 190, 255, 255] },
        disableDepthTestDistance: Number.POSITIVE_INFINITY
      }
    },
    {
      id: 'p2',
      name: '大点带描边',
      position: { cartographicDegrees: [116.372, 39.900, 0] },
      point: {
        pixelSize: 18,
        color: { rgba: [77, 155, 255, 255] },
        outlineColor: { rgba: [255, 255, 255, 255] },
        outlineWidth: 3,
        disableDepthTestDistance: Number.POSITIVE_INFINITY
      }
    },
    {
      id: 'p3',
      name: '半透明点',
      position: { cartographicDegrees: [116.392, 39.900, 0] },
      point: {
        pixelSize: 26,
        color: { rgba: [57, 192, 160, 140] },
        outlineColor: { rgba: [140, 240, 220, 200] },
        outlineWidth: 2,
        disableDepthTestDistance: Number.POSITIVE_INFINITY
      }
    },
    {
      id: 'p4',
      name: '按像素大小缩放',
      position: { cartographicDegrees: [116.412, 39.900, 0] },
      point: {
        pixelSize: 34,
        color: { rgba: [240, 170, 70, 255] },
        outlineColor: { rgba: [60, 40, 10, 255] },
        outlineWidth: 4,
        disableDepthTestDistance: Number.POSITIVE_INFINITY
      }
    },
    {
      id: 'p5',
      name: '穿透地球显示',
      position: { cartographicDegrees: [116.432, 39.900, 0] },
      point: {
        pixelSize: 20,
        color: { rgba: [228, 92, 122, 255] },
        outlineColor: { rgba: [255, 255, 255, 255] },
        outlineWidth: 2,
        disableDepthTestDistance: Number.POSITIVE_INFINITY
      }
    },
    {
      id: 'caption',
      position: { cartographicDegrees: [116.392, 39.886, 0] },
      label: {
        text: 'pixelSize 6 / 18 / 26 / 34 / 20',
        font: '500 13px "Microsoft YaHei", sans-serif',
        fillColor: { rgba: [214, 228, 245, 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, 39.874, 7800),
    orientation: {
      heading: 0,
      pitch: Cesium.Math.toRadians(-55),
      roll: 0
    },
    duration: 0
  });
})();
</script>
</body>
</html>