工业级后台API v2
blame | history | patch | commit | commitdiff | ignore whitespace
jinpengyong
2020-07-07 153144cbee10bb4999242bc62358ffe63ca9ceb9 
 src/main/webapp/view/pollutionsource.jsp


@@ -97,11 +97,33 @@


        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">


    <div id="cpm">查无数据</div>


    <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;">


@@ -120,10 +142,8 @@


    var params = $.parseJSON($("#pollutionSourceParams").html());


    var month = params["month"];


    var device = params["device"];


    var dirPoint=params["dirPoint"];


    console.log(dirPoint.lng);


    console.log(dirPoint.lat);


    var getPollutionSourceData=params["getPollutionSourceData"];


    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


@@ -133,139 +153,278 @@


    });


    map.addControl(navigation);


    map.addControl(new BMap.ScaleControl());


    if ($.isEmptyObject(dirPoint)||$.isEmptyObject(getPollutionSourceData)||getPollutionSourceData["e18"]==0) {


        showNoData();


    }else{


        var humidity=getPollutionSourceData["e6"];


        var windSpeed=getPollutionSourceData["e18"];


        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 marker = new BMap.Marker(point, {icon: icon, offset: new BMap.Size(0, -20)});


        map.addOverlay(marker);


        map.centerAndZoom(point, 17);


        var polyline1 = new BMap.Polyline([


                dirPoint,


                new BMap.Point(point.lng+0.01, point.lat+0.01)


            ],


            {strokeColor: "#5298FF", strokeWeight: 4, strokeOpacity: 1}


        );


        var polyline2 = new BMap.Polyline([


                dirPoint,


                new BMap.Point( point.lng-0.02,  point.lat-0.01)


            ],


            {strokeColor: "#5298FF", strokeWeight: 4, strokeOpacity: 1}


        );


        var distance=windSpeed*3600;


        console.log(distance);


        var arrowLength;//两点间箭头长度


        if (distance <= 5) {


            arrowLength = 0;


        } else if (distance > 5 && distance <= 20) {


            arrowLength = 2;


        } else if (distance > 20 && distance <= 50) {


            arrowLength = 3;


        } else if (distance > 50 && distance <= 100) {


            arrowLength = 5;


        } else if (distance > 100 && distance <= 200) {


            arrowLength = 10;


        } else if (distance > 200 && distance <= 500) {


            arrowLength = 20;


        } else if (distance > 500 && distance <= 1000) {


            arrowLength = 40;


        } else if (distance > 1000 && distance <= 2000) {


            arrowLength = 80;


        } else if (distance > 2000 && distance <= 3000) {


            arrowLength = 120;


        } else if (distance > 3000 && distance <= 10000) {


            arrowLength = 500;


        } else if (distance > 10000 && distance <= 20000) {


            arrowLength = 1000;


        } else if (distance > 20000 && distance <= 50000) {


            arrowLength = 2500;


        } else if (distance > 50000 && distance <= 100000) {


            arrowLength = 5000;


        } else if (distance > 100000 && distance <= 200000) {


            arrowLength = 10000;


        } else if (distance > 200000 && distance <= 500000) {


            arrowLength = 25000;


        } else if (distance > 500000 && distance <= 1000000) {


            arrowLength = 50000;


        } else if (distance > 1000000 && distance <= 2000000) {


            arrowLength = 100000;


        } else {


            arrowLength = 150000;


        }


        map.addOverlay(polyline1);// 画两点间线


        addArrow(polyline1, arrowLength, Math.PI / 7,windSpeed);


        map.addOverlay(polyline2);// 画两点间线


        addArrow(polyline2, arrowLength, Math.PI / 7,windSpeed);


        var winfowTextCause = "<p style='height: 44px;line-height: 22px'>汽车尾气，工厂废气，以及周边地区农田秸秆焚烧，污染传播途径是根据风向来做出调整</p>";


        var winfowTextSource;


        var supplement;


        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);


    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);




    function addArrow(polyline, length, angleValue,windSpeed) {


                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


@@ -276,7 +435,7 @@


            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, pixelX1, pixelY1;// 箭头两个点


            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


@@ -288,8 +447,7 @@


                }


                // 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);


                pixelX1 = pixelTemX + r * Math.tan(angle);


                pixelY = pixelY1 = pixelTemY;


                pixelY = pixelTemY;


            } else { // 斜率存在时


                delta = (poMiddleY - pixelStart.y) / (poMiddleX - pixelStart.x);


                param = Math.sqrt(delta * delta + 1);


@@ -303,34 +461,83 @@


                // 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;


                pixelX1 = pixelTemX - Math.tan(angle) * r * delta / param;


                pixelY1 = pixelTemY + Math.tan(angle) * r / param;


            }


            var pointArrow = map.pixelToPoint(new BMap.Pixel(pixelX, pixelY));


            var pointArrow1 = map.pixelToPoint(new BMap.Pixel(pixelX1, pixelY1));


            var pointMiddle = map.pixelToPoint(new BMap.Pixel(poMiddleX, poMiddleY));


            lab = new BMap.Label("风速："+windSpeed+"m/s", {position: pointMiddle, offset: new BMap.Size(0, -30)});


            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: "red",


                color: "#EE3B3B",


                fontSize: "16px",


                backgroundColor: "1",


                border: "0",


                fontWeight: "bold"


            });


            map.addOverlay(lab);


            var Arrow = new BMap.Polyline([pointArrow, pointMiddle, pointArrow1],


                {strokeColor: "#5298FF", strokeWeight: 4, strokeOpacity: 1});


            map.addOverlay(Arrow);


        }


    };




    function showNoData() {


        var longitude = 120.987287;


        var latitude = 31.391562;


        var point = new BMap.Point(longitude, latitude);


        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>