显隐控制

设置代码中的homeButton

    var TDT_IMG_C = "https://{s}.tianditu.gov.cn/img_c/wmts?service=wmts&request=GetTile&version=1.0.0" + "&LAYER=img&tileMatrixSet=c&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}" + "&style=default&format=tiles&tk=fa7ec9766b2c00747e3dd60ab3d05892";
    var viewer = new Cesium.Viewer('map', {
      baseLayerPicker: false,  // 影像切换
      animation: false,  //是否显示动画控件
      timeline: false, //是否显示时间线控件
      infoBox: false, //是否显示点击要素之后显示的信息
      geocoder: false, //是否显示地名查找控件
      navigationHelpButton: false, //是否显示帮助信息控件
      homeButton:true,//控制home键显隐
      imageryProvider: new Cesium.WebMapTileServiceImageryProvider({
        url: TDT_IMG_C,
        layer: "tdtImg_c",
        style: "default",
        format: "tiles",
        tileMatrixSetID: "c",
        subdomains: ["t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7"],
        tilingScheme: new Cesium.GeographicTilingScheme(),
        tileMatrixLabels: ["1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19"],
        maximumLevel: 50,
        show: false
      })
    })

home键相机位置控制

// 创建 Cesium Viewer
var viewer = new Cesium.Viewer('cesiumContainer');
// 设置 home 键
viewer.homeButton.viewModel.command = function() {
    // 设置相机位置
    viewer.camera.setView({
        destination: Cesium.Cartesian3.fromDegrees(120.678594, 24.803711, 1000),
        orientation: {
            heading: Cesium.Math.toRadians(0),
            pitch: Cesium.Math.toRadians(-30),
            roll: 0.0
        }
    });
};