Cesium Inspector

<!--
  示例：打开内置的 CesiumInspector 查看渲染统计
  说明：面板里可以看图元数量、绘制调用、瓦片状态，还能开启点击拾取与线框模式
  核心逻辑：new Cesium.CesiumInspector('inspector', viewer) + debugShowFramesPerSecond
  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>内置检查器</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%}
  #inspector{position:absolute;right:12px;top:12px;width:300px;z-index:5}
  .hud{position:absolute;left:12px;top:12px;z-index:5;background:rgba(23,28,35,.9);
       border:1px solid #2a313b;border-radius:6px;padding:9px 12px;font-size:12px;
       color:#a2a9b6;max-width:240px}
  .hud b{color:#e6e8ec;font-weight:600}
  .cesium-viewer-bottom .cesium-widget-credits,.cesium-viewer-animationContainer,
  .cesium-viewer-timelineContainer{display:none!important}
</style>
</head>
<body>
<div id="c"></div>
<div id="inspector"></div>
<div class="hud">
  <div><b>内置检查器</b></div>
  <div>右上角面板可展开，Pick 打开后点画面看拾取结果</div>
  <div>左下角显示实时帧率</div>
</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;
  scene.globe.enableLighting = true;
  scene.debugShowFramesPerSecond = true;

  /* 放一些图元，让检查器里有东西可看 */
  var instances = [];
  var palette = ['#4d9bff', '#39c0a0', '#f2a03d', '#e45c7a', '#8e7cf0'];

  for (var i = 0; i < 40; i++) {
    var lon = 116.3913 + ((i % 8) - 4) * 0.00042;
    var lat = 39.9074 + (Math.floor(i / 8) - 2) * 0.00036;
    var h = 20 + (i * 37) % 80;

    instances.push(new Cesium.GeometryInstance({
      geometry: new Cesium.BoxGeometry({
        vertexFormat: Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
        minimumCorner: new Cesium.Cartesian3(-14, -12, 0),
        maximumCorner: new Cesium.Cartesian3(14, 12, h)
      }),
      modelMatrix: Cesium.Transforms.eastNorthUpToFixedFrame(
        Cesium.Cartesian3.fromDegrees(lon, lat, 0)
      ),
      attributes: {
        color: Cesium.ColorGeometryInstanceAttribute.fromColor(
          Cesium.Color.fromCssColorString(palette[i % palette.length])
        )
      }
    }));
  }

  scene.primitives.add(new Cesium.Primitive({
    geometryInstances: instances,
    appearance: new Cesium.PerInstanceColorAppearance({ flat: false, translucent: false }),
    asynchronous: false
  }));

  viewer.entities.add({
    position: Cesium.Cartesian3.fromDegrees(116.3913, 39.9074, 140),
    label: {
      text: '点我可以试 Pick 模式',
      font: '500 13px "Microsoft YaHei", sans-serif',
      fillColor: Cesium.Color.WHITE,
      disableDepthTestDistance: Number.POSITIVE_INFINITY
    }
  });

  var inspector = new Cesium.CesiumInspector('inspector', viewer);
  inspector.show = true;

  viewer.camera.flyTo({
    destination: Cesium.Cartesian3.fromDegrees(116.3888, 39.9028, 950),
    orientation: {
      heading: Cesium.Math.toRadians(40),
      pitch: Cesium.Math.toRadians(-24),
      roll: 0
    },
    duration: 0
  });
})();
</script>
</body>
</html>