<%@ page contentType="text/html;charset=UTF-8" language="java" %>
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<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
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<!DOCTYPE html>
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<head>
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<meta charset="utf-8"/>
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<title></title>
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<script type="text/javascript"
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src="http://api.map.baidu.com/api?v=2.0&ak=rER1sgBIcQxkfNSlm2wmBGZGgEERrooM"></script>
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<script type="text/javascript" src="/js/jquery.min.js"></script>
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</head>
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<style type="text/css">
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body,
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html,
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#mapCanvas {
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width: 100%;
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height: 100%;
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overflow: hidden;
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margin: 0;
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z-index: 0;
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font-size: 14px;
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font-family: "微软雅黑";
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}
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.main_body {
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border: 0;
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margin: 0;
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width: 100%;
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height: 100%;
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position: relative;
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}
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* {
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margin: 0;
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padding: 0;
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list-style: none;
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}
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.BMap_top {
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display: none;
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}
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.BMap_center {
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display: none;
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}
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.BMap_bubble_title {
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color: white;
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padding: 0 5px 0 5px;
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background-color: #2DA0EB;
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}
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.BMap_bubble_content {
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background-color: white;
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padding: 5px;
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}
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.BMap_pop > img {
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top: 42px !important;
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margin-left: -10px;
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}
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.BMap_pop div:nth-child(1) div {
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display: none;
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}
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.BMap_pop div:nth-child(3) {
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display: none;
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}
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.BMap_pop div:nth-child(5) {
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display: none;
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}
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.BMap_pop div:nth-child(7) {
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display: none;
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}
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.BMap_pop div:nth-child(9) {
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top: 35px !important;
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border-radius: 5px;
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}
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</style>
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<body>
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<div class="main_body">
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<div id="mapCanvas"></div> <!-- 百度地图 -->
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<!-- 传sensorInfo,regionCode,regionName,monitorPoint,device-->
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<div id="pollutionSourceParams" style="display: none;">
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${requestScope.pollutionSourceParams}
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</div>
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</div>
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</body>
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</html>
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<script type="text/javascript">
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var moralMap = {};
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var mapStyle = {
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features: ["road", "building", "water", "land"], // 隐藏地图上的poi
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style: "normal" // 设置地图风格为高端黑
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};
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var params = $.parseJSON($("#pollutionSourceParams").html());
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var weatherInfoToday = params["weatherInfoToday"];
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var weatherInfoForecast = params["weatherInfoForecast"];
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var isToday = params["isToday"];
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var month = params["month"];
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var device = params["device"];
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var cityName = params["weatherInfoToday"]["cityName"];
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var map = new BMap.Map("mapCanvas", {enableMapClick: false});
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map.setCurrentCity("昆山");
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map.setMapStyle(mapStyle);
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map.enableScrollWheelZoom(true); // 开启鼠标滚轮缩放
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var navigation = new BMap.NavigationControl({
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anchor: BMAP_ANCHOR_BOTTOM_RIGHT,
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type: BMAP_NAVIGATION_CONTROL_LARGE
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});
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map.addControl(navigation);
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map.addControl(new BMap.ScaleControl());
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var longitude = params["device"]["longitude"];
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var latitude = params["device"]["latitude"];
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var point = new BMap.Point(longitude, latitude);
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var icon = new BMap.Icon("/img/ico00.png", new BMap.Size(50, 50));
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var marker = new BMap.Marker(point, {icon: icon, offset: new BMap.Size(0, -20)});
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map.addOverlay(marker);
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map.setCurrentCity(cityName);
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map.centerAndZoom(point, 19);
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var bounds = map.getBounds(); //获取地图可视区域
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var sw = bounds.getSouthWest(); //获取西南角的经纬度(左下端点)
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var ne = bounds.getNorthEast(); //获取东北角的经纬度(右上端点)
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var wn = new BMap.Point(sw.lng, ne.lat); //获取西北角的经纬度(左上端点)
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var es = new BMap.Point(ne.lng, sw.lat); //获取东南角的经纬度(右下端点)
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var n = new BMap.Point(longitude, ne.lat);
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var s = new BMap.Point(longitude, sw.lat);
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var w = new BMap.Point(sw.lng, latitude);
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var e = new BMap.Point(ne.lng, latitude);
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var dirPoint;
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var humidity;
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var windLevel;
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if (Object.keys(weatherInfoForecast).length === 0) {
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var windDir = weatherInfoToday["windDir"];
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dirPoint = getWindDir(windDir, dirPoint);
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humidity = weatherInfoToday["humidity"];
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windLevel = weatherInfoToday["windLevel"];
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} else {
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if (isToday) {
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var windDir = weatherInfoToday["windDir"];
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dirPoint = getWindDir(windDir, dirPoint);
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humidity = weatherInfoToday["humidity"];
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windLevel = weatherInfoToday["windLevel"];
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} else {
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var windDir = weatherInfoForecast["windDirDay"];
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dirPoint = getWindDir(windDir, dirPoint);
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humidity = weatherInfoForecast["humidity"];
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windLevel = weatherInfoForecast["windLevelDay"];
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}
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}
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var polyline = new BMap.Polyline([
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dirPoint,
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point
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],
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{strokeColor: "#5298FF", strokeWeight: 4, strokeOpacity: 1}
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);
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map.addOverlay(polyline);// 画两点间线
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addArrow(polyline, 50, Math.PI / 7);
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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>";
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var winfowTextSource;
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var supplement;
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if (month == 12 || month == 1 || month == 2) {
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if (humidity > 60 && windLevel < 2) {
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supplement = "，同时相对湿度超过60%，平均风速小于2m/s，高温、湿度较大，大气扩散条件较不利";
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} else if (humidity > 80 && windLevel < 2) {
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supplement = "，同时相对湿度超过80%，平均风速降低，在高湿、小风条件下，污染物易于累积和吸湿增长，促使污染二次生成";
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} else if (windLevel > 2) {
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supplement = "，但风速较大，大气扩散条件较有利，空气质量相对提升";
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} else {
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supplement = "，但湿度较低，大气扩散条件较有利";
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}
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winfowTextSource = "<p style='height: 22px;line-height: 22px'>压强升高气温降低，也会因冷空气带来的颗粒物，导致污染上升" + supplement + "</p>";
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} else if (month == 3 || month == 4 || month == 5) {
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if (humidity > 60 && windLevel < 2) {
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supplement = "，同时相对湿度超过60%，平均风速小于2m/s，高温、湿度较大，大气扩散条件较不利";
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} else if (humidity > 80 && windLevel < 2) {
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supplement = "，同时相对湿度超过80%，平均风速降低，在高湿、小风条件下，污染物易于累积和吸湿增长，促使污染二次生成";
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} else if (windLevel >= 2) {
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supplement = "，同时风速较大，大气扩散条件较有利，空气质量相对提升";
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} else {
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supplement = "，同时湿度较低，大气扩散条件较有利";
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}
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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>";
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} else if (month == 6 || month == 7) {
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if (humidity > 60 && windLevel < 2) {
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supplement = "，同时相对湿度超过60%，平均风速小于2m/s，高温、湿度较大，大气扩散条件较不利";
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} else if (humidity > 80 && windLevel < 2) {
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supplement = "，同时相对湿度超过80%，平均风速降低，在高湿、小风条件下，污染物易于累积和吸湿增长，促使污染二次生成";
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} else if (windLevel > 2) {
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supplement = "，同时风速较大，大气扩散条件较有利，空气质量相对提升";
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} else {
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supplement = "，同时湿度较低，大气扩散条件较有利";
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}
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winfowTextSource = "<p style='height: 22px;line-height: 22px'>夏季的气温条件不易发生逆温" + supplement + "</p>";
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} else if (month == 8 || month == 9 || month == 10 || month == 11) {
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if (humidity > 60 && windLevel < 2) {
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supplement = "，同时相对湿度超过60%，平均风速小于2m/s，高温、湿度较大，大气扩散条件较不利";
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} else if (humidity > 80 && windLevel < 2) {
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supplement = "，同时相对湿度超过80%，平均风速降低，在高湿、小风条件下，污染物易于累积和吸湿增长，促使污染二次生成";
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} else if (windLevel > 2) {
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supplement = "，同时风速较大，大气扩散条件较有利，空气质量相对提升";
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} else {
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supplement = "，同时湿度较低，大气扩散条件较有利";
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}
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winfowTextSource = "<p style='height: 22px;line-height: 22px'>太阳辐射强，大气氧化性增强，常发生光化学烟雾" + supplement + "</p>";
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}
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var winfowText = '<div style="height:150px;" >';
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var opts = {
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width: 380,
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title: '<h3>污染分析</h3>',
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enableMessage: false //设置允许信息窗发送短息
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}
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winfowText += '<h3 style="background-color: #CD5C5C;color:white;margin-bottom: 1px">污染来源</h3>';
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winfowText += winfowTextCause;
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winfowText += '<h3 style="background-color: #66CD00;color:white;margin-bottom: 1px">污染成因</h3>';
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winfowText += winfowTextSource;
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winfowText += "</div>";
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marker.addEventListener("click", function () {
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var infoWindow = new BMap.InfoWindow(winfowText, opts);
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this.openInfoWindow(infoWindow);
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});
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function addArrow(polyline, length, angleValue) {
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var linePoint = polyline.getPath();// 线的坐标串
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var arrowCount = linePoint.length;
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for (var i = 1; i < arrowCount; i++) { // 在拐点处绘制箭头
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var pixelStart = map.pointToPixel(linePoint[i - 1]);
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var pixelEnd = map.pointToPixel(linePoint[i]);
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var angle = angleValue;// 箭头和主线的夹角
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var r = length; // r/Math.sin(angle)代表箭头长度
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var delta = 0; // 主线斜率，垂直时无斜率
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var param = 0; // 代码简洁考虑
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var pixelTemX, pixelTemY, poMiddleX, poMiddleY;// 临时点坐标
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var pixelX, pixelY, pixelX1, pixelY1;// 箭头两个点
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poMiddleX = (pixelEnd.x + pixelStart.x) / 2;
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poMiddleY = (pixelEnd.y + pixelStart.y) / 2;
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if (poMiddleX - pixelStart.x == 0) { // 斜率不存在时
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pixelTemX = poMiddleX;
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if (poMiddleY > pixelStart.y) {
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pixelTemY = poMiddleY - r;
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} else {
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pixelTemY = poMiddleY + r;
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}
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// 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
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pixelX = pixelTemX - r * Math.tan(angle);
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pixelX1 = pixelTemX + r * Math.tan(angle);
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pixelY = pixelY1 = pixelTemY;
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} else { // 斜率存在时
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delta = (poMiddleY - pixelStart.y) / (poMiddleX - pixelStart.x);
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param = Math.sqrt(delta * delta + 1);
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if ((poMiddleX - pixelStart.x) < 0) { // 第二、三象限
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pixelTemX = poMiddleX + r / param;
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pixelTemY = poMiddleY + delta * r / param;
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} else { // 第一、四象限
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pixelTemX = poMiddleX - r / param;
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pixelTemY = poMiddleY - delta * r / param;
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}
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// 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
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pixelX = pixelTemX + Math.tan(angle) * r * delta / param;
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pixelY = pixelTemY - Math.tan(angle) * r / param;
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pixelX1 = pixelTemX - Math.tan(angle) * r * delta / param;
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pixelY1 = pixelTemY + Math.tan(angle) * r / param;
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}
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var pointArrow = map.pixelToPoint(new BMap.Pixel(pixelX, pixelY));
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var pointArrow1 = map.pixelToPoint(new BMap.Pixel(pixelX1, pixelY1));
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var pointMiddle = map.pixelToPoint(new BMap.Pixel(poMiddleX, poMiddleY));
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var Arrow = new BMap.Polyline([pointArrow, pointMiddle, pointArrow1],
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{strokeColor: "#5298FF", strokeWeight: 4, strokeOpacity: 1});
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map.addOverlay(Arrow);
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}
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};
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function getWindDir(windDir, dirPoint) {
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if (windDir == "北风") {
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dirPoint = n;
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} else if (windDir == "南风") {
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dirPoint = s;
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} else if (windDir == "西风") {
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dirPoint = w;
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} else if (windDir == "东风") {
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dirPoint = e;
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} else if (windDir == "西北风") {
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dirPoint = wn;
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} else if (windDir == "东北风") {
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dirPoint = ne;
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} else if (windDir == "西南风") {
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dirPoint = sw;
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} else if (windDir == "东南风") {
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dirPoint = es;
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} else {
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dirPoint = n;
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}
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return dirPoint;
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};
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</script>
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