text: import * as mars3d from "mars3d"
  
  export let map // mars3d.Map三维地图对象
  
  // 需要覆盖config.json中地图属性参数（当前示例框架中自动处理合并）
  export const mapOptions = {
    scene: {
      center: { lat: 31.170953, lng: 121.485939, alt: 7473, heading: 10, pitch: -40 }
    }
  }
  
  /**
   * 初始化地图业务，生命周期钩子函数（必须）
   * 框架在地图初始化完成后自动调用该函数
   * @param {mars3d.Map} mapInstance 地图对象
   * @returns {void} 无
   */
  export function onMounted(mapInstance) {
    map = mapInstance // 记录map
  
    map.basemap = 2017 // 蓝色底图
  
    const tiles3dLayer = new mars3d.layer.TilesetLayer({
      name: "上海市建筑物",
      url: "//data.mars3d.cn/3dtiles/jzw-shanghai/tileset.json",
      maximumScreenSpaceError: 8,
      maximumMemoryUsage: 1024,
      marsJzwStyle: true,
      style: {
        color: {
          conditions: [["true", "rgb(3, 104, 255)"]]
        }
      },
      popup: "all"
    })
    map.addLayer(tiles3dLayer)
  
    // 创建Graphic图层
    const graphicLayer = new mars3d.layer.GraphicLayer()
    map.addLayer(graphicLayer)
  
    // 加一些演示数据
    addDemoGraphic1(graphicLayer)
    addDemoGraphic2(graphicLayer)
    addDemoGraphic3(graphicLayer)
    addDemoGraphic4(graphicLayer)
    addDemoGraphic5(graphicLayer)
  }
  
  /**
   * 释放当前地图业务的生命周期函数
   * @returns {void} 无
   */
  export function onUnmounted() {
    map = null
  }
  
  function addDemoGraphic1(graphicLayer) {
    // 立体围墙扩散效果,面状
    const diffuseWallGlow = new mars3d.graphic.DiffuseWall({
      positions: [
        [121.475616, 31.255374, 5.87],
        [121.482578, 31.248681, 10.85],
        [121.479447, 31.240235, 14.25],
        [121.470002, 31.240496, 12.92],
        [121.46538, 31.249206, 9.53],
        [121.475616, 31.255374, 5.87]
      ],
      style: {
        color: "#ffff00",
        diffHeight: 2000, // 高度
        speed: 10 // 速度
      },
      attr: { remark: "示例1" }
    })
    graphicLayer.addGraphic(diffuseWallGlow)
  }
  
  function addDemoGraphic2(graphicLayer) {
    // 立体围墙扩散效果,圆状
    const circleDiffuseWallGlow = new mars3d.graphic.DiffuseWall({
      position: new mars3d.LngLatPoint(121.481165, 31.278668, 44.3), // 圆中心点
      style: {
        diffHeight: 2000, // 高度
        radius: 600, // 半径
        color: "#ff0000",
        speed: 10 // 速度
      },
      attr: { remark: "示例2" }
    })
    graphicLayer.addGraphic(circleDiffuseWallGlow)
  }
  
  function addDemoGraphic3(graphicLayer) {
    const primitive = new mars3d.graphic.CirclePrimitive({
      position: [121.522454, 31.267553, 61.9],
      style: {
        radius: 2000,
        material: mars3d.MaterialUtil.createMaterial(mars3d.MaterialType.ScanLine, {
          color: new Cesium.Color(1.0, 1.0, 0.0, 1.0),
          speed: 10
        }),
        clampToGround: true // 是否贴地
      },
      attr: { remark: "示例3" }
    })
    graphicLayer.addGraphic(primitive)
  }
  
  function addDemoGraphic4(graphicLayer) {
    let _rotation = Math.random()
  
    const graphic = new mars3d.graphic.CircleEntity({
      position: Cesium.Cartesian3.fromDegrees(121.504242, 31.23805, 27.88),
      style: {
        radius: 1500.0,
        // 扫描材质
        material: mars3d.MaterialUtil.createMaterialProperty(mars3d.MaterialType.CircleScan, {
          image: "img/textures/circle-scan.png",
          color: "#00ff00"
        }),
        stRotation: new Cesium.CallbackProperty(function (e) {
          _rotation -= 0.1
          return _rotation
        }, false),
        classificationType: Cesium.ClassificationType.BOTH,
        clampToGround: true // 是否贴地
      },
      attr: { remark: "示例4" }
    })
    graphicLayer.addGraphic(graphic)
  }
  
  function addDemoGraphic5(graphicLayer) {
    let _rotation = Math.random()
    const graphic = new mars3d.graphic.CircleEntity({
      position: new mars3d.LngLatPoint(121.526215, 31.245237, 123.5),
      style: {
        radius: 700.0,
        material: mars3d.MaterialUtil.createMaterialProperty(mars3d.MaterialType.CircleScan, {
          // 扫描材质
          image: "img/textures/circle-two.png",
          color: "#5fc4ee"
        }),
        stRotation: new Cesium.CallbackProperty(function (e) {
          _rotation += 0.1
          return _rotation
        }, false),
        classificationType: Cesium.ClassificationType.BOTH,
        clampToGround: true // 是否贴地
      },
      attr: { remark: "示例5" }
    })
    graphicLayer.addGraphic(graphic)
  }
  