// 画可编辑矩形

                         var mPoint=new BMap.Point(e.lng,e.lat);// 得到中心点坐标

                          var pStart = new BMap.Point(e.lng,e.lat);

                          var pEnd = new BMap.Point((e.lng+0.1),(e.lat+0.1));

                          var polygon = new BMap.Polygon([

                              new BMap.Point(pStart.lng,pStart.lat),

                              new BMap.Point(pEnd.lng,pStart.lat),

                              new BMap.Point(pEnd.lng,pEnd.lat),

                              new BMap.Point(pStart.lng,pEnd.lat)

                              ], {strokeColor:"blue", strokeWeight:1, strokeOpacity:0.5});

                          map.addOverlay(polygon);

                          polygon.enableEditing();

 for(var i=0;i<overlays.length;i++){

                              //判断 覆盖物为标注的并且是在多边形区域内部的

                              if(overlays[i].uQ == "Marker" && overlays[i].id){

                                  //判断marker是否在多边形内

                                    if(BMapLib.GeoUtils.isPointInPolygon(overlays[i].getPosition(), polygon)){

                                       maker_arr.push(overlays[i]);

                                       maker_id.push(overlays[i].id);

                                  }

                              }

                            }