百度地图API 2.0实现点聚合分布图

    map.addControl(overViewOpen);
    map.addControl(top_left_control);
    map.addControl(top_left_navigation);
   //点聚合
   var markerClusterer = new BMapLib.MarkerClusterer(map);
  $(function () {
        //此处是handlebars加载上方下拉框可以跳过不看
         var data = null;
        var source = $("#DropdownTemplate").html();
        var template = Handlebars.compile(source);
        data = GetDefalutData() 
        //获取下拉菜单那部分的模板
        var html = template(data);
        $("#DropdownBar").html(html);
        //给二级地区加载下拉选项
        var source1 = $("#test").html();
        var template1 = Handlebars.compile(source1);
        var html1 = template1({ SecondAreas: data.SecondAreas });
        $("#second-area").html(html1);
        
        //获取地图数据 并展示在百度地图上
        //获取数据
        var mapdata = GetMapDatas("xj06", "全部", $("#time").attr("data-value"), "学校分布", null).data;
        initmap(mapdata, "沈阳", 8);
       
        //画轮廓线
        getBoundary("辽宁省");
        $("#MapSubmit").click(function(){
          提交按钮点击事件
      })
     
  })

     function initmap(mapdata, city, size) {
        map.centerAndZoom(city, size);
        markerClusterer.clearMarkers()
        var myIconblue = new BMap.Icon("@Url.Content("~/Resources/baiduMapstatic/img/markers_new2_4ab0bc5.png")", new BMap.Size(25, 38), { anchor: new BMap.Size(12, 38), imageOffset: new BMap.Size(-225, 0 - 222) });
        var myIconred = new BMap.Icon("@Url.Content("~/Resources/baiduMapstatic/img/markers_new2_4ab0bc5.png")", new BMap.Size(25, 38), { anchor: new BMap.Size(12, 38), imageOffset: new BMap.Size(-225, -184) });

        for (; i             //这里调用后台的数据并展示
            pt = new BMap.Point(mapdata[i].Longitude, mapdata[i].Latitude);
            var marker;
            //根据限制条件判断应该加载的图标

            if (mapdata[i].SchoolType.indexOf("小学") > -1) {
                    marker = new BMap.Marker(pt, { icon: myIconblue });
            } else {
                    marker = new BMap.Marker(pt, { icon: myIconred });
            }
            marker.customData = mapdata[i].SchoolCode;
            marker.addEventListener("click", function () { { attribute(this) } }, false)
            markers.push(marker);
        }
        markerClusterer.addMarkers(markers);
      
    }
     function attribute(e) {
        var point = new BMap.Point(e.point.lng, e.point.lat);
        var _url = ‘/SchoolDistr/GetSchoolInfo‘;
        var Time = $("#time").attr("data-value");
        var CategStandard = $("#CategStandard").attr("data-value");
        var Indicator = $("#Indicator").attr("data-value");
        var _data = new SchoolInfoClass(e.customData, null, null, Time, null, CategStandard, Indicator);
        var _async = false;
        var areas = null;
        var schoolinfo = PostRequest(_url, _data, _async).data
        var infocontent = "

学校名称:" + schoolinfo.SchoolName + "

学校主管部门:" + schoolinfo.Schooldep + "

学校地址:" + schoolinfo.Address + "";
        if (schoolinfo.IndicatorsList != null) {
            for (var i = 0; i                 infocontent += "

" + schoolinfo.IndicatorsList[i].IndicatorTime + schoolinfo.IndicatorsList[i].IndicatorName + ":" + schoolinfo.IndicatorsList[i].IndicatorData + schoolinfo.IndicatorsList[i].IndicatorUnit + "

";
            }
        }
        var searchInfoWindow = null;
        ////获取起始点到终点的驾车距离
        var output = "到县城(或城市行政中心)距离:";
        var searchComplete = function (results) {
            if (transit.getStatus() == BMAP_STATUS_SUCCESS) {
                var plan = results.getPlan(0);
                output += plan.getDistance(true) + "\n 驾车需要:";
                output += plan.getDuration(true);
                infocontent += "

" + output + "

";
                // return;
            }
            var content = ‘‘;
            searchInfoWindow = new BMapLib.SearchInfoWindow(map, content, {
                title: "详细信息",      //标题
                width: 300,             //宽度
                panel: "routeResult",         //检索结果面板
                enableAutoPan: true,
                enableMessage: false,
                enableSendToPhone: false,
                searchTypes: [
                    //BMAPLIB_TAB_FROM_HERE //从这里出发
                ]
            });
            searchInfoWindow.open(point)
        }
        var transit = new BMap.DrivingRoute(map, {
            renderOptions: { map: map, autoViewport: false },//autoViewport: false
            BMAP_HIGHLIGHT_ROUTE: false,
            onSearchComplete: searchComplete,
            onPolylinesSet: function () {
                transit.disableAutoViewport()
                transit.clearResults();            }

        });
        transit.search(point, schoolinfo.AreaConutry);//schoolinfo.AreaConutry
    }
    function ClearOverlays(OverlaysList) {
        OverlaysList.forEach(function (item) {
            map.removeOverlay(item);
        })
    }
    //将地区名传入即可 比如辽宁省；沈阳市;大连市；需要注意的是百度地图支持你直接传递地名但是遇到同名的时候会加载不出来，需要把省市区写详细。
    function getBoundary(item) {
        if (OverlaysList.length > 0) {
            ClearOverlays(OverlaysList);
        }
        var bdary = new BMap.Boundary();
        bdary.get(item, function (rs) {
            var count = rs.boundaries.length; //行政区域的点有多少个
            if (count == 0) {
                return;
            }
            var pointArray = [];
            for (var i = 0; i                 let ply = new BMap.Polygon(rs.boundaries[i], { strokeWeight: 2, strokeColor: "#ff0000", fillColor: "rgba(255, 255, 255, 0.00)",strokeOpacity: 0.3  }); //建立多边形覆盖物
                map.addOverlay(ply);  //添加覆盖物
                OverlaysList.push(ply);
                pointArray = pointArray.concat(ply.getPath());
            }
        });
    }
function GetMapDatas(AreaCode, SchoolGrade, Time, CategStandard, Indicator){}
function GetSecondArea(event){}
function GetDefalutData(){}

js代码