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cesium_example_auth


			
				
					
						
						
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							<!DOCTYPE html>
<html>
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    <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0,minimum-scale=1.0,maximum-scale=1.0" />
    <meta name="apple-touch-fullscreen" content="yes" />
    <meta name="apple-mobile-web-app-capable" content="yes" />
    <meta name="apple-mobile-web-app-status-bar-style" content="black" />
    <meta name="format-detection" content="telephone=no" />
    <meta name="x5-fullscreen" content="true" />
    <meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" />

    <!-- 标题及搜索关键字 -->
    <meta name="keywords" content="火星科技,cesium,3D,GIS,marsgis,三维,地球,地图,开发,框架,系统,示例,资料,模型,离线,外包,合肥,安徽,中国" />
    <meta
      name="description"
      content="火星科技 合肥火星 合肥火星科技 合肥火星科技有限公司 leaflet leaflet框架 leaflet开发 cesium cesium开发 cesium框架 三维 地球 模型  gis marsgis 地图离线 地图开发 地图框架 地图外包 框架 开发 外包  地图离线 二维地图 三维地图 全景漫游 地理信息系统 云GIS 三维GIS GIS平台 WebGIS"
    />

    <link rel="shortcut icon" type="image/x-icon" href="" />
    <title>大数据面(合并渲染) </title>

    <script
      type="text/javascript"
      src="../lib/include-lib.js"
      libpath="../lib/"
      include="jquery,font-awesome,bootstrap,bootstrap-checkbox,layer,haoutil,turf,mars3d"
    ></script>

    <link href="css/style.css" rel="stylesheet" />
  </head>

  <body class="dark">
    <!--加载前进行操作提示，优化用户体验-->
    <div id="mask" class="signmask" onclick="removeMask()"></div>

    <div id="mars3dContainer" class="mars3d-container"></div>

    <div class="infoview">
      大数据加载：
      <input id="txtCount" type="number" value="10" min="0.1" max="100.0" step="0.1" class="form-control" style="width: 80px" />万条

      <input type="button" class="btn btn-primary" value="生成" id="btnAddData" />
      <input type="button" class="btn btn-primary" value="清除" id="btnClear" />
    </div>

    <script src="./js/common.js"></script>
    <script type="text/javascript">
      "use script"; //开发环境建议开启严格模式

      var map;

      function initMap(options) {
        //合并属性参数，可覆盖config.json中的对应配置
        var mapOptions = mars3d.Util.merge(options, {
          scene: {
            center: { lat: 31.806147, lng: 117.236965, alt: 3307, heading: 359, pitch: -54 },
          },
          terrain: {
            show: false,
          },
        });

        //创建三维地球场景
        map = new mars3d.Map("mars3dContainer", mapOptions);

        //创建Graphic图层
        var graphicLayer = new mars3d.layer.GraphicLayer();
        map.addLayer(graphicLayer);

        //在layer上绑定监听事件
        graphicLayer.on(mars3d.EventType.click, function (event) {
          let pickedItem = event.pickedObject?.data;
          // let attr = event.graphic.attr
          console.log("单击了合并对象中的单个值为", pickedItem);
        });

        graphicLayer.bindPopup(function (event) {
          let attr = event.graphic?.attr;
          if (!attr) {
            return false;
          }
          return mars3d.Util.getTemplateHtml({ title: "建筑物", template: "all", attr: attr });
        });

        $("#btnClear").click(function () {
          graphicLayer.clear();
        });
        $("#btnAddData").click(function () {
          graphicLayer.clear();

          haoutil.loading.show();
          var startTime = new Date().getTime();

          var count = Number($("#txtCount").val()) * 10000;

          var arrData = [];
          for (var j = 0; j < count; ++j) {
            var position = randomPoint();
            var pt1 = mars3d.PointUtil.getPositionByDirectionAndLen(position, 45, 500);
            var pt2 = mars3d.PointUtil.getPositionByDirectionAndLen(position, 135, 500);
            var pt3 = mars3d.PointUtil.getPositionByDirectionAndLen(position, 225, 500);
            var pt4 = mars3d.PointUtil.getPositionByDirectionAndLen(position, 315, 500);

            arrData.push({
              positions: [pt1, pt2, pt3, pt4, pt1],
              style: {
                height: haoutil.math.random(30, 9000),
                color: Cesium.Color.fromRandom(),
                opacity: 0.6,
              },
              attr: {
                name: "第" + j + "个",
              },
            });
          }

          //多个面对象的合并渲染。
          var primitive = new mars3d.graphic.PolygonCombine({
            instances: arrData,
            // style: {
            //   outline: true,
            //   outlineWidth: 3,
            //   outlineColor: "#ffffff",
            // },
            //高亮时的样式
            highlight: {
              type: mars3d.EventType.click,
              color: Cesium.Color.YELLOW.withAlpha(0.9),
            },
          });
          graphicLayer.addGraphic(primitive);

          haoutil.loading.close();
          var endTime = new Date().getTime();
          // 两个时间戳相差的毫秒数
          var usedTime = (endTime - startTime) / 1000;
          console.log(usedTime);

          haoutil.msg("共耗时" + usedTime.toFixed(2) + "秒");
        });

        //加一些演示数据
        addGraphic_a1(graphicLayer);
      }

      function addGraphic_a1(graphicLayer) {
        //加一些演示数据
        Cesium.Resource.fetchJson({
          url: "//data.mars3d.cn/file/geojson/buildings-hf.json",
        })
          .then((data) => {
            let arr = mars3d.Util.geoJsonToGraphics(data, {
              symbol: {
                callback: function (attr, styleOpt) {
                  let diffHeight = (attr.floor || 1) * 5;

                  return {
                    height: 0,
                    diffHeight: diffHeight,
                    color: Cesium.Color.fromRandom({ alpha: 0.4 }), //随机色
                  };
                },
              },
            });

            haoutil.msg("共加载" + arr.length + "个面");

            //多个面对象的合并渲染。
            var primitive = new mars3d.graphic.PolygonCombine({
              instances: arr,
              //公共样式
              style: {
                outline: true,
                outlineColor: "#ffffff",
              },

              //高亮时的样式
              highlight: {
                type: mars3d.EventType.click,
                color: Cesium.Color.YELLOW.withAlpha(0.9),
              },
            });
            graphicLayer.addGraphic(primitive);
          })
          .otherwise(function (error) {
            haoutil.alert("服务出错", error);
          });
      }

      //适用于其他Geometry类型的数据，可以完全自定义
      // function addGraphic_a2(graphicLayer) {
      //   //加一些演示数据
      //   Cesium.Resource.fetchJson({
      //     url: "//data.mars3d.cn/file/geojson/buildings-hf.json",
      //   })
      //     .then((data) => {
      //       let arr = mars3d.Util.geoJsonToGraphics(data);

      //       haoutil.msg("共加载" + arr.length + "个面");

      //       //多个面对象的合并渲染。
      //       const instances = [];
      //       for (let i = 0; i < arr.length; i++) {
      //         const item = arr[i];
      //         let itemColor = Cesium.Color.fromRandom();

      //         const instance = new Cesium.GeometryInstance({
      //           //其他Geometry类型的数据，按Cesium语法修改下面的geometry
      //           geometry: new Cesium.RectangleGeometry({
      //             rectangle: Cesium.Rectangle.fromCartesianArray(mars3d.LatLngArray.toCartesians(item.positions)),
      //             vertexFormat: Cesium.PerInstanceColorAppearance.VERTEX_FORMAT,
      //             height: 0,
      //             extrudedHeight: (item.attr.floor || 1) * 5,
      //           }),
      //           attributes: {
      //             color: Cesium.ColorGeometryInstanceAttribute.fromColor(itemColor),
      //           },
      //         });
      //         instance.attr = item.attr; //重要：绑定相关属性
      //         instances.push(instance);
      //       }

      //       //多个对象的合并渲染。
      //       var primitive = new mars3d.graphic.BaseCombine({
      //         instances: instances,
      //       });
      //       graphicLayer.addGraphic(primitive);
      //     })
      //     .otherwise(function (error) {
      //       haoutil.alert("服务出错", error);
      //     });
      // }

      //取区域内的随机图标
      function randomPoint() {
        var jd = haoutil.math.random(115.955684 * 1000, 117.474003 * 1000) / 1000;
        var wd = haoutil.math.random(30.7576 * 1000, 32.008782 * 1000) / 1000;
        return Cesium.Cartesian3.fromDegrees(jd, wd);
      }
    </script>
  </body>
</html>