| <%@ page contentType="text/html;charset=UTF-8" language="java" %> | 
| <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> | 
| <!DOCTYPE html> | 
| <head> | 
|     <meta charset="utf-8"/> | 
|     <title></title> | 
|     <script type="text/javascript" | 
|             src="http://api.map.baidu.com/api?v=2.0&ak=rER1sgBIcQxkfNSlm2wmBGZGgEERrooM"></script> | 
|     <script type="text/javascript" src="/js/jquery.min.js"></script> | 
| </head> | 
| <style type="text/css"> | 
|     body, | 
|     html, | 
|     #mapCanvas { | 
|         width: 100%; | 
|         height: 100%; | 
|         overflow: hidden; | 
|         margin: 0; | 
|         z-index: 0; | 
|         font-size: 14px; | 
|         font-family: "微软雅黑"; | 
|     } | 
|   | 
|     .main_body { | 
|         border: 0; | 
|         margin: 0; | 
|         width: 100%; | 
|         height: 100%; | 
|         position: relative; | 
|     } | 
|   | 
|     * { | 
|         margin: 0; | 
|         padding: 0; | 
|         list-style: none; | 
|     } | 
|   | 
|     .BMap_top { | 
|         display: none; | 
|     } | 
|   | 
|     .BMap_center { | 
|         display: none; | 
|     } | 
|   | 
|     .BMap_bubble_title { | 
|         color: white; | 
|         padding: 0 5px 0 5px; | 
|         background-color: #2DA0EB; | 
|     } | 
|   | 
|     .BMap_bubble_content { | 
|         background-color: white; | 
|         padding: 5px; | 
|     } | 
|   | 
|     .BMap_pop > img { | 
|         top: 42px !important; | 
|         margin-left: -10px; | 
|     } | 
|   | 
|     .BMap_pop div:nth-child(1) div { | 
|         display: none; | 
|     } | 
|   | 
|     .BMap_pop div:nth-child(3) { | 
|         display: none; | 
|     } | 
|   | 
|     .BMap_pop div:nth-child(5) { | 
|         display: none; | 
|     } | 
|   | 
|     .BMap_pop div:nth-child(7) { | 
|         display: none; | 
|     } | 
|   | 
|     .BMap_pop div:nth-child(9) { | 
|         top: 35px !important; | 
|         border-radius: 5px; | 
|     } | 
|   | 
|     #cpm { | 
|         width: 300px; | 
|         height: 100px; | 
|         position: absolute; | 
|         background-color: #ffffff; | 
|         display: none; | 
|         left: 50%; | 
|         top: 50%; | 
|         margin-left: -150px; | 
|         margin-top: -50px; | 
|         z-index: 11; | 
|         color: #000000; | 
|         border: 2px solid #FF7F50; | 
|         font-size: 28px; | 
|         line-height: 100px; | 
|         text-align: center; | 
|     } | 
|   | 
|     #show { | 
|         position: absolute; | 
|         z-index: 1; | 
|         top: 30px; | 
|         right: 50px; | 
|         display: inline-block; | 
|         width: 100px; | 
|         height: 40px; | 
|         border-width: 0px; | 
|         border-radius: 3px; | 
|         background: #6495ED; | 
|         cursor: pointer; | 
|         outline: none; | 
|         color: white; | 
|         font-size: 20px; | 
|     } | 
|   | 
|     #show:hover { | 
|         background: #5CACEE; | 
|     } | 
| </style> | 
|   | 
| <body> | 
| <div class="main_body"> | 
|     <input type="button" id="show" value="溯源运算"/> | 
|     <div id="cpm"></div> | 
|     <div id="mapCanvas"></div> <!-- 百度地图 --> | 
|     <!-- 传sensorInfo,regionCode,regionName,monitorPoint,device--> | 
|     <div id="pollutionSourceParams" style="display: none;"> | 
|         ${requestScope.pollutionSourceParams} | 
|     </div> | 
| </div> | 
| </body> | 
| </html> | 
|   | 
| <script type="text/javascript"> | 
|     var moralMap = {}; | 
|     var mapStyle = { | 
|         features: ["road", "building", "water", "land"], // 隐藏地图上的poi | 
|         style: "normal" // 设置地图风格为高端黑 | 
|     }; | 
|     var params = $.parseJSON($("#pollutionSourceParams").html()); | 
|     var month = params["month"]; | 
|     var device = params["device"]; | 
|     var dirPoint = new BMap.Point(params["dirPoint"].lng, params["dirPoint"].lat); | 
|     var getPollutionSourceData = params["getPollutionSourceData"]; | 
|     var map = new BMap.Map("mapCanvas", {enableMapClick: false}); | 
|     map.setMapStyle(mapStyle); | 
|     map.enableScrollWheelZoom(true); // 开启鼠标滚轮缩放 | 
|     var navigation = new BMap.NavigationControl({ | 
|         anchor: BMAP_ANCHOR_BOTTOM_RIGHT, | 
|         type: BMAP_NAVIGATION_CONTROL_LARGE | 
|     }); | 
|     map.addControl(navigation); | 
|     map.addControl(new BMap.ScaleControl()); | 
|     var longitude = params["device"]["longitude"]; | 
|     var latitude = params["device"]["latitude"]; | 
|     var point = new BMap.Point(longitude, latitude); | 
|     var icon = new BMap.Icon("/img/ico00.png", new BMap.Size(50, 50)); | 
|     var icon1 = new BMap.Icon("/img/ico01.png", new BMap.Size(50, 50)); | 
|     var icon2 = new BMap.Icon("/img/ico02.png", new BMap.Size(50, 50)); | 
|     var marker = new BMap.Marker(point, {icon: icon, offset: new BMap.Size(0, -20)}); | 
|     map.addOverlay(marker); | 
|     map.centerAndZoom(point, 16); | 
|     var humidity = 0; | 
|     var temperature = 0; | 
|     if (!$.isEmptyObject(dirPoint) && !$.isEmptyObject(getPollutionSourceData) && typeof (getPollutionSourceData["e18"]) != "undefined" && typeof (getPollutionSourceData["e23"]) != "undefined" && getPollutionSourceData["e18"] != 0) { | 
|         var windSpeed = parseFloat(getPollutionSourceData["e18"]); | 
|         var windDir = parseFloat(getPollutionSourceData["e23"]); | 
|         var distance = windSpeed * 3600; | 
|         var winDirStart = 255 - windDir; | 
|         var winDirEnd = 285 - windDir; | 
|         var marker1 = new BMap.Marker(EOffsetBearing(dirPoint, distance * 0.15, winDirStart), { | 
|             icon: icon2, | 
|             offset: new BMap.Size(0, -20) | 
|         }); | 
|         var marker2 = new BMap.Marker(EOffsetBearing(dirPoint, distance * 0.31, winDirEnd), { | 
|             icon: icon2, | 
|             offset: new BMap.Size(0, -20) | 
|         }); | 
|         var marker3 = new BMap.Marker(EOffsetBearing(dirPoint, distance * 0.61, winDirStart), { | 
|             icon: icon1, | 
|             offset: new BMap.Size(0, -20) | 
|         }); | 
|         var marker4 = new BMap.Marker(EOffsetBearing(dirPoint, distance * 0.78, winDirEnd), { | 
|             icon: icon1, | 
|             offset: new BMap.Size(0, -20) | 
|         }); | 
|         map.addOverlay(marker1); | 
|         map.addOverlay(marker2); | 
|         map.addOverlay(marker3); | 
|         map.addOverlay(marker4); | 
|     } | 
|   | 
|     $("#show").one('click', function () { | 
|         setTimeout(function () { | 
|             if ($.isEmptyObject(dirPoint) || $.isEmptyObject(getPollutionSourceData) || typeof (getPollutionSourceData["e18"]) == "undefined" || typeof (getPollutionSourceData["e23"]) == "undefined" || getPollutionSourceData["e18"] === 0) { | 
|                 showNoData(); | 
|             } else { | 
|                 if (typeof (getPollutionSourceData["e6"]) != "undefined") { | 
|                     humidity = parseFloat(getPollutionSourceData["e6"]); | 
|                 } | 
|                 if (typeof (getPollutionSourceData["e7"]) != "undefined") { | 
|                     temperature = parseFloat(getPollutionSourceData["e7"]); | 
|                 } | 
|                 var windSpeed = parseFloat(getPollutionSourceData["e18"]); | 
|                 var windDir = parseFloat(getPollutionSourceData["e23"]); | 
|                 var selectSensorKey = getPollutionSourceData["selectSensorKey"]; | 
|                 var markerDir = new BMap.Marker(dirPoint); | 
|                 lab = new BMap.Label("经过溯源运算,确认该点为污染源</br>" + selectSensorKey + "超标", { | 
|                     position: dirPoint, | 
|                     offset: new BMap.Size(20, -40) | 
|                 }); | 
|                 lab.setStyle({ | 
|                     color: "#EE3B3B", | 
|                     fontSize: "16px", | 
|                     backgroundColor: "1", | 
|                     fontWeight: "bold" | 
|                 }); | 
|                 map.addOverlay(lab); | 
|   | 
|                 var distance = windSpeed * 3600; | 
|                 var winDirStartLeft = 240 - windDir; | 
|                 var winDirEndLeft = 250 - windDir; | 
|                 var winDirStartMiddle = 250 - windDir; | 
|                 var winDirEndMiddle = 290 - windDir; | 
|                 var winDirStartRight = 290 - windDir; | 
|                 var winDirEndRight = 300 - windDir; | 
|                 var winDirStart = 255 - windDir; | 
|                 var winDirEnd = 285 - windDir; | 
|                 var polyline1 = new BMap.Polyline([ | 
|                         dirPoint, | 
|                         EOffsetBearing(dirPoint, distance, winDirStart) | 
|                     ], | 
|                     {strokeColor: "red", strokeWeight: 4, strokeOpacity: 1} | 
|                 ); | 
|                 var polyline2 = new BMap.Polyline([ | 
|                         dirPoint, | 
|                         EOffsetBearing(dirPoint, distance, winDirEnd) | 
|                     ], | 
|                     {strokeColor: "red", strokeWeight: 4, strokeOpacity: 1} | 
|                 ); | 
|                 map.addOverlay(polyline1);// 画两点间线 | 
|                 map.addOverlay(polyline2);// 画两点间线 | 
|                 map.addOverlay(markerDir); | 
|                 setTimeout(function () { | 
|                     var ovalLeft = new BMap.Polygon(Sector(dirPoint, distance, winDirStartLeft, winDirEndLeft), { | 
|                         strokeColor: "#ADADAD", | 
|                         strokeWeight: 0.1, | 
|                         strokeOpacity: 0.7, | 
|                         fillColor: "#ADADAD" | 
|                     }); | 
|                     map.addOverlay(ovalLeft); | 
|                     var oval = new BMap.Polygon(Sector(dirPoint, distance, winDirStartMiddle, winDirEndMiddle), { | 
|                         strokeColor: "#A6A6A6", | 
|                         strokeWeight: 0.1, | 
|                         strokeOpacity: 0.95, | 
|                         fillColor: "#A6A6A6" | 
|                     }); | 
|                     map.addOverlay(oval); | 
|                     var ovalRight = new BMap.Polygon(Sector(dirPoint, distance, winDirStartRight, winDirEndRight), { | 
|                         strokeColor: "#ADADAD", | 
|                         strokeWeight: 0.1, | 
|                         strokeOpacity: 0.7, | 
|                         fillColor: "#ADADAD" | 
|                     }); | 
|                     map.addOverlay(ovalRight); | 
|                 }, 1500); | 
|                 setTimeout(function () { | 
|                     var ovalLeft = new BMap.Polygon(Sector(dirPoint, distance * 0.66, winDirStartLeft, winDirEndLeft), { | 
|                         strokeColor: "#ADADAD", | 
|                         strokeWeight: 0.1, | 
|                         strokeOpacity: 0.5, | 
|                         fillColor: "#ADADAD" | 
|                     }); | 
|                     map.addOverlay(ovalLeft); | 
|                     var oval = new BMap.Polygon(Sector(dirPoint, distance * 0.66, winDirStartMiddle, winDirEndMiddle), { | 
|                         strokeColor: "#A6A6A6", | 
|                         strokeWeight: 0.1, | 
|                         strokeOpacity: 0.75, | 
|                         fillColor: "#A6A6A6" | 
|                     }); | 
|                     map.addOverlay(oval); | 
|                     var ovalRight = new BMap.Polygon(Sector(dirPoint, distance * 0.66, winDirStartRight, winDirEndRight), { | 
|                         strokeColor: "#ADADAD", | 
|                         strokeWeight: 0.1, | 
|                         strokeOpacity: 0.7, | 
|                         fillColor: "#ADADAD" | 
|                     }); | 
|                     map.addOverlay(ovalRight); | 
|                     var polyline = new BMap.Polyline([ | 
|                             dirPoint, | 
|                             point | 
|                         ], | 
|                         {strokeColor: "#5298FF", strokeWeight: 4, strokeOpacity: 1} | 
|                     ); | 
|                     addArrow(polyline, 0, Math.PI / 7, temperature, humidity, windSpeed, windDir); | 
|                 }, 1000); | 
|                 setTimeout(function () { | 
|                     var ovalLeft = new BMap.Polygon(Sector(dirPoint, distance * 0.33, winDirStartLeft, winDirEndLeft), { | 
|                         strokeColor: "#ADADAD", | 
|                         strokeWeight: 0.1, | 
|                         strokeOpacity: 0.3, | 
|                         fillColor: "#ADADAD" | 
|                     }); | 
|                     map.addOverlay(ovalLeft); | 
|                     var oval = new BMap.Polygon(Sector(dirPoint, distance * 0.33, winDirStartMiddle, winDirEndMiddle), { | 
|                         strokeColor: "#A6A6A6", | 
|                         strokeWeight: 0.1, | 
|                         strokeOpacity: 0.55, | 
|                         fillColor: "#A6A6A6" | 
|                     }); | 
|                     var ovalRight = new BMap.Polygon(Sector(dirPoint, distance * 0.33, winDirStartRight, winDirEndRight), { | 
|                         strokeColor: "#ADADAD", | 
|                         strokeWeight: 0.1, | 
|                         strokeOpacity: 0.7, | 
|                         fillColor: "#ADADAD" | 
|                     }); | 
|                     map.addOverlay(ovalRight); | 
|                     map.addOverlay(oval); | 
|                 }, 500); | 
|   | 
|                 var winfowTextCause = "<p style='height: 22px;line-height: 22px'>汽车尾气,工厂废气,以及周边地区农田秸秆焚烧</p>"; | 
|                 var winfowTextSource; | 
|                 var supplement; | 
|                 if (selectSensorKey == "臭氧") { | 
|                     winfowTextCause = "<p style='height: 44px;line-height: 22px'>主要来源机动车尾气、燃煤排放氮氧化物,油漆油气挥发有机物在高温,阳光充足的照射下发生光化学烟雾</p>"; | 
|                     winfowTextSource = "<p style='height: 22px;line-height: 22px'>NOx以及VOCs总量超标</p>"; | 
|                 } else { | 
|                     if (month == 12 || month == 1 || month == 2) { | 
|                         if (windSpeed >= 3.4) { | 
|                             supplement = ",但风速较大,大气扩散条件较有利,空气质量相对提升"; | 
|                         } | 
|                         if (humidity >= 90.0) { | 
|                             supplement = ",但降雨有利于对颗粒物的沉降、冲刷,改善污染状况"; | 
|                         } else { | 
|                             supplement = ""; | 
|                         } | 
|                         winfowTextSource = "<p style='height: 22px;line-height: 22px'>压强升高气温降低,会因冷空气带来的颗粒物,导致污染上升" + supplement + "</p>"; | 
|                     } else if (month == 3 || month == 4 || month == 5) { | 
|                         if (windSpeed >= 3.4) { | 
|                             supplement = ",但风速较大,大气扩散条件较有利,空气质量相对提升"; | 
|                         } | 
|                         if (humidity >= 90.0) { | 
|                             supplement = ",但降雨有利于对颗粒物的沉降、冲刷,改善污染状况"; | 
|                         } else { | 
|                             supplement = ""; | 
|                         } | 
|                         winfowTextSource = "<p style='height: 22px;line-height: 22px'>地面逆温频率的增加使污染物在近地层不断积累" + supplement + "</p>"; | 
|                     } else if (month == 6 || month == 7) { | 
|                         if (windSpeed >= 3.4) { | 
|                             supplement = ",同时风速较大,加速扩散"; | 
|                         } | 
|                         if (humidity >= 90.0) { | 
|                             supplement = ",同时降雨有利于对颗粒物的沉降、冲刷,改善污染状况"; | 
|                         } else { | 
|                             supplement = ""; | 
|                         } | 
|                         winfowTextSource = "<p style='height: 22px;line-height: 22px'>夏季的气温条件不易发生逆温,利于污染物扩散" + supplement + "</p>"; | 
|                     } else if (month == 8 || month == 9 || month == 10 || month == 11) { | 
|                         if (windSpeed >= 3.4) { | 
|                             supplement = ",但风速较大,利于污染物扩散"; | 
|                         } | 
|                         if (humidity >= 90.0) { | 
|                             supplement = ",但降雨有利于对颗粒物的沉降、冲刷,改善污染状况"; | 
|                         } else { | 
|                             supplement = ""; | 
|                         } | 
|                         winfowTextSource = "<p style='height: 22px;line-height: 22px'>大气扩散条件不好使污染物聚集,增大了气态污染物向二次颗粒物转化的机会" + supplement + "</p>"; | 
|                     } | 
|                 } | 
|   | 
|                 var winfowText = '<div style="height:150px;" >'; | 
|                 var opts = { | 
|                     width: 380, | 
|                     title: '<h3>污染分析</h3>', | 
|                     enableMessage: false //设置允许信息窗发送短息 | 
|                 } | 
|                 winfowText += '<h3 style="background-color: #CD5C5C;color:white;margin-bottom: 1px">污染来源</h3>'; | 
|                 winfowText += winfowTextCause; | 
|                 winfowText += '<h3 style="background-color: #66CD00;color:white;margin-bottom: 1px">污染成因</h3>'; | 
|                 winfowText += winfowTextSource; | 
|                 winfowText += "</div>"; | 
|                 marker.addEventListener("click", function () { | 
|                     var infoWindow = new BMap.InfoWindow(winfowText, opts); | 
|                     this.openInfoWindow(infoWindow); | 
|                 }); | 
|             } | 
|         }, 1500); | 
|     }); | 
|   | 
|     //centre:椭圆中心点,X:横向经度,Y:纵向纬度 | 
|     function add_oval(centre, x, y) { | 
|         var assemble = new Array(); | 
|         var angle; | 
|         var dot; | 
|         var tangent = x / y; | 
|         for (i = 0; i < 36; i++) { | 
|             angle = (2 * Math.PI / 36) * i; | 
|             dot = new BMap.Point(centre.lng + Math.sin(angle) * y * tangent, centre.lat + Math.cos(angle) * y); | 
|             assemble.push(dot); | 
|         } | 
|         return assemble; | 
|     } | 
|   | 
|     //以画多边形区域的方法画扇形区域 画出以point点为圆心,半径为radius,夹角从sDegree到eDegree的扇形 | 
|     function Sector(point, radius, sDegree, eDegree) { | 
|         var points = []; //创建构成多边形的点数组 | 
|         var step = ((eDegree - sDegree) / 100) || 1; //根据扇形的总夹角确定每步夹角度数,最大为10 | 
|         points.push(point); | 
|         for (var i = sDegree; i < eDegree + 0.001; i += step) { //循环获取每步的圆弧上点的坐标,存入点数组 | 
|             points.push(EOffsetBearing(point, radius, i)); | 
|         } | 
|         points.push(point); | 
|         return points; | 
|     } | 
|   | 
|     //使用数学的方法计算需要画扇形的圆弧上的点坐标 | 
|     function EOffsetBearing(point, dist, bearing) { | 
|         var lngConv = map.getDistance(point, new BMap.Point(point.lng + 0.1, point.lat)) * 10; //计算经度与原点的距离 | 
|         var latConv = map.getDistance(point, new BMap.Point(point.lng, point.lat + 0.1)) * 10; //计算纬度与原点的距离 | 
|         var lat = dist * Math.sin(bearing * Math.PI / 180) / latConv; //正弦计算待获取的点的纬度与原点纬度差 | 
|         var lng = dist * Math.cos(bearing * Math.PI / 180) / lngConv; //余弦计算待获取的点的经度与原点经度差 | 
|         return new BMap.Point(point.lng + lng, point.lat + lat); | 
|     } | 
|   | 
|     function addArrow(polyline, length, angleValue, temperature, humidity, windSpeed, windDir) { | 
|         var linePoint = polyline.getPath();// 线的坐标串 | 
|         var arrowCount = linePoint.length; | 
|         for (var i = 1; i < arrowCount; i++) { // 在拐点处绘制箭头 | 
|             var pixelStart = map.pointToPixel(linePoint[i - 1]); | 
|             var pixelEnd = map.pointToPixel(linePoint[i]); | 
|             var angle = angleValue;// 箭头和主线的夹角 | 
|             var r = length; // r/Math.sin(angle)代表箭头长度 | 
|             var delta = 0; // 主线斜率,垂直时无斜率 | 
|             var param = 0; // 代码简洁考虑 | 
|             var pixelTemX, pixelTemY, poMiddleX, poMiddleY;// 临时点坐标 | 
|             var pixelX, pixelY;// 箭头两个点 | 
|             poMiddleX = (pixelEnd.x + pixelStart.x) / 2; | 
|             poMiddleY = (pixelEnd.y + pixelStart.y) / 2; | 
|             if (poMiddleX - pixelStart.x == 0) { // 斜率不存在时 | 
|                 pixelTemX = poMiddleX; | 
|                 if (poMiddleY > pixelStart.y) { | 
|                     pixelTemY = poMiddleY - r; | 
|                 } else { | 
|                     pixelTemY = poMiddleY + r; | 
|                 } | 
|                 // 已知直角三角形两个点坐标及其中一个角,求另外一个点坐标算法 | 
|                 pixelX = pixelTemX - r * Math.tan(angle); | 
|                 pixelY = pixelTemY; | 
|             } else { // 斜率存在时 | 
|                 delta = (poMiddleY - pixelStart.y) / (poMiddleX - pixelStart.x); | 
|                 param = Math.sqrt(delta * delta + 1); | 
|                 if ((poMiddleX - pixelStart.x) < 0) { // 第二、三象限 | 
|                     pixelTemX = poMiddleX + r / param; | 
|                     pixelTemY = poMiddleY + delta * r / param; | 
|                 } else {  // 第一、四象限 | 
|                     pixelTemX = poMiddleX - r / param; | 
|                     pixelTemY = poMiddleY - delta * r / param; | 
|                 } | 
|                 // 已知直角三角形两个点坐标及其中一个角,求另外一个点坐标算法 | 
|                 pixelX = pixelTemX + Math.tan(angle) * r * delta / param; | 
|                 pixelY = pixelTemY - Math.tan(angle) * r / param; | 
|             } | 
|             var pointMiddle = map.pixelToPoint(new BMap.Pixel(poMiddleX, poMiddleY)); | 
|             var windDirection; | 
|             if (windDir == 0) { | 
|                 windDirection = "北风"; | 
|             } else if (windDir == 90) { | 
|                 windDirection = "东风"; | 
|             } else if (windDir == 180) { | 
|                 windDirection = "南风"; | 
|             } else if (windDir == 270) { | 
|                 windDirection = "西风"; | 
|             } else if (windDir > 0 && windDir < 90) { | 
|                 windDirection = "东北风"; | 
|             } else if (windDir > 90 && windDir < 180) { | 
|                 windDirection = "东南风"; | 
|             } else if (windDir > 180 && windDir < 270) { | 
|                 windDirection = "西南风"; | 
|             } else if (windDir > 270 && windDir < 360) { | 
|                 windDirection = "西北风"; | 
|             } | 
|             if (temperature != 0 && humidity != 0) { | 
|                 lab = new BMap.Label("<P>温度:" + temperature + "℃</p><P>湿度:" + humidity + "%</p><P>风速:" + windSpeed + "m/s</p><P>风向:" + windDirection + "</p>", { | 
|                     position: pointMiddle, | 
|                     offset: new BMap.Size(-50, -40) | 
|                 }); | 
|             } else if (temperature == 0 && humidity != 0) { | 
|                 lab = new BMap.Label("<P>湿度:" + humidity + "%</p><P>风速:" + windSpeed + "m/s</p><P>风向:" + windDirection + "</p>", { | 
|                     position: pointMiddle, | 
|                     offset: new BMap.Size(-50, -40) | 
|                 }); | 
|             } else if (temperature != 0 && humidity == 0) { | 
|                 lab = new BMap.Label("<P>温度:" + temperature + "℃</p><P>风速:" + windSpeed + "m/s</p><P>风向:" + windDirection + "</p>", { | 
|                     position: pointMiddle, | 
|                     offset: new BMap.Size(-50, -40) | 
|                 }); | 
|             } else { | 
|                 lab = new BMap.Label("<P>风速:" + windSpeed + "m/s</p><P>风向:" + windDirection + "</p>", { | 
|                     position: pointMiddle, | 
|                     offset: new BMap.Size(-50, -40) | 
|                 }); | 
|             } | 
|             lab.setStyle({ | 
|                 color: "#EE3B3B", | 
|                 fontSize: "16px", | 
|                 backgroundColor: "1", | 
|                 border: "0", | 
|                 fontWeight: "bold" | 
|             }); | 
|             map.addOverlay(lab); | 
|         } | 
|     }; | 
|   | 
|     function showNoData() { | 
|         map.centerAndZoom(point, 17); | 
|         setTimeout(function () { | 
|             if (JSON.stringify(getPollutionSourceData) == JSON.stringify({})) { | 
|                 document.getElementById("cpm").innerText = "该时间点查询无数据"; | 
|             } else { | 
|                 if (getPollutionSourceData["e18"] === 0) { | 
|                     document.getElementById("cpm").style.width = '380px'; | 
|                     document.getElementById("cpm").innerText = "风速为0,无法溯源运算"; | 
|                 } | 
|                 if (typeof (getPollutionSourceData["e18"]) == "undefined") { | 
|                     document.getElementById("cpm").style.width = '400px'; | 
|                     document.getElementById("cpm").innerText = "设备无风速,无法溯源运算"; | 
|                 } | 
|                 if (typeof (getPollutionSourceData["e23"]) == "undefined") { | 
|                     document.getElementById("cpm").style.width = '400px'; | 
|                     document.getElementById("cpm").innerText = "设备无风向,无法溯源运算"; | 
|                 } | 
|                 if (typeof (getPollutionSourceData["e18"]) == "undefined" && typeof (getPollutionSourceData["e23"]) == "undefined") { | 
|                     document.getElementById("cpm").style.width = '500px'; | 
|                     document.getElementById("cpm").innerText = "设备无风速,无风向,无法溯源运算"; | 
|                 } | 
|             } | 
|             document.getElementById("cpm").style.display = 'block'; | 
|         }, 250); | 
|     }; | 
|   | 
| </script> |