<%@ 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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<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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#cpm {
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width: 300px;
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height: 100px;
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position: absolute;
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background-color: #ffffff;
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display: none;
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left: 50%;
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top: 50%;
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margin-left: -150px;
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margin-top: -50px;
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z-index: 11;
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color: #000000;
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border: 2px solid #FF7F50;
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font-size: 28px;
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line-height: 100px;
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text-align: center;
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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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#selectSenor {
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position: absolute;
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z-index: 1;
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left: 30px;
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top: 20px;
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font-size: 20px;
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background: lightgrey;
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}
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button {
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font-size: 15px;
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}
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.sensorLevel {
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position: absolute;
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z-index: 1;
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bottom: 20px;
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right: 10px;
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width: 100px;
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height: 200px;
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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="selectSenor">
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<input type="radio" value="e1" name="sensor" checked>PM2.5
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<input type="radio" value="e2" name="sensor">PM10
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<input type="radio" value="e17" name="sensor">TVOC
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</div>
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<img src="/img/sensorLevel.png" class="sensorLevel">
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<div id="cpm">查无走航车轨迹</div>
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<div id="mapCanvas"></div> <!-- 百度地图 -->
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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 GPS = {
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PI: 3.14159265358979324,
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x_pi: 3.14159265358979324 * 3000.0 / 180.0,
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delta: function (lat, lon) {
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var a = 6378245.0; // a: 卫星椭球坐标投影到平面地图坐标系的投影因子。
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var ee = 0.00669342162296594323; // ee: 椭球的偏心率。
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var dLat = this.transformLat(lon - 105.0, lat - 35.0);
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var dLon = this.transformLon(lon - 105.0, lat - 35.0);
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var radLat = lat / 180.0 * this.PI;
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var magic = Math.sin(radLat);
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magic = 1 - ee * magic * magic;
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var sqrtMagic = Math.sqrt(magic);
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dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * this.PI);
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dLon = (dLon * 180.0) / (a / sqrtMagic * Math.cos(radLat) * this.PI);
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return {'lat': dLat, 'lon': dLon};
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},
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//WGS-84 to GCJ-02
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gcj_encrypt: function (wgsLat, wgsLon) {
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if (this.outOfChina(wgsLat, wgsLon))
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return {'lat': wgsLat, 'lon': wgsLon};
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var d = this.delta(wgsLat, wgsLon);
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return {'lat': wgsLat + d.lat, 'lon': wgsLon + d.lon};
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},
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//GCJ-02 to WGS-84
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gcj_decrypt: function (gcjLat, gcjLon) {
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if (this.outOfChina(gcjLat, gcjLon))
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return {'lat': gcjLat, 'lon': gcjLon};
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var d = this.delta(gcjLat, gcjLon);
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return {'lat': gcjLat - d.lat, 'lon': gcjLon - d.lon};
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},
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//GCJ-02 to WGS-84 exactly
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gcj_decrypt_exact: function (gcjLat, gcjLon) {
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var initDelta = 0.01;
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var threshold = 0.000000001;
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var dLat = initDelta, dLon = initDelta;
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var mLat = gcjLat - dLat, mLon = gcjLon - dLon;
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var pLat = gcjLat + dLat, pLon = gcjLon + dLon;
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var wgsLat, wgsLon, i = 0;
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while (1) {
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wgsLat = (mLat + pLat) / 2;
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wgsLon = (mLon + pLon) / 2;
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var tmp = this.gcj_encrypt(wgsLat, wgsLon)
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dLat = tmp.lat - gcjLat;
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dLon = tmp.lon - gcjLon;
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if ((Math.abs(dLat) < threshold) && (Math.abs(dLon) < threshold))
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break;
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if (dLat > 0) pLat = wgsLat; else mLat = wgsLat;
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if (dLon > 0) pLon = wgsLon; else mLon = wgsLon;
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if (++i > 10000) break;
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}
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return {'lat': wgsLat, 'lon': wgsLon};
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},
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//GCJ-02 to BD-09
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bd_encrypt: function (gcjLat, gcjLon) {
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var x = gcjLon, y = gcjLat;
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var z = Math.sqrt(x * x + y * y) + 0.00002 * Math.sin(y * this.x_pi);
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var theta = Math.atan2(y, x) + 0.000003 * Math.cos(x * this.x_pi);
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bdLon = z * Math.cos(theta) + 0.0065;
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bdLat = z * Math.sin(theta) + 0.006;
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return {'lat': bdLat, 'lon': bdLon};
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},
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//BD-09 to GCJ-02
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bd_decrypt: function (bdLat, bdLon) {
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var x = bdLon - 0.0065, y = bdLat - 0.006;
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var z = Math.sqrt(x * x + y * y) - 0.00002 * Math.sin(y * this.x_pi);
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var theta = Math.atan2(y, x) - 0.000003 * Math.cos(x * this.x_pi);
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var gcjLon = z * Math.cos(theta);
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var gcjLat = z * Math.sin(theta);
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return {'lat': gcjLat, 'lon': gcjLon};
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},
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//WGS-84 to Web mercator
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//mercatorLat -> y mercatorLon -> x
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mercator_encrypt: function (wgsLat, wgsLon) {
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var x = wgsLon * 20037508.34 / 180.;
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var y = Math.log(Math.tan((90. + wgsLat) * this.PI / 360.)) / (this.PI / 180.);
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y = y * 20037508.34 / 180.;
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return {'lat': y, 'lon': x};
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},
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// Web mercator to WGS-84
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// mercatorLat -> y mercatorLon -> x
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mercator_decrypt: function (mercatorLat, mercatorLon) {
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var x = mercatorLon / 20037508.34 * 180.;
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var y = mercatorLat / 20037508.34 * 180.;
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y = 180 / this.PI * (2 * Math.atan(Math.exp(y * this.PI / 180.)) - this.PI / 2);
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return {'lat': y, 'lon': x};
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},
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// two point's distance
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distance: function (latA, lonA, latB, lonB) {
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var earthR = 6371000.;
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var x = Math.cos(latA * this.PI / 180.) * Math.cos(latB * this.PI / 180.) * Math.cos((lonA - lonB) * this.PI / 180);
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var y = Math.sin(latA * this.PI / 180.) * Math.sin(latB * this.PI / 180.);
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var s = x + y;
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if (s > 1) s = 1;
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if (s < -1) s = -1;
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var alpha = Math.acos(s);
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var distance = alpha * earthR;
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return distance;
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},
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outOfChina: function (lat, lon) {
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if (lon < 72.004 || lon > 137.8347)
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return true;
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if (lat < 0.8293 || lat > 55.8271)
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return true;
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return false;
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},
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transformLat: function (x, y) {
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var ret = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * Math.sqrt(Math.abs(x));
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ret += (20.0 * Math.sin(6.0 * x * this.PI) + 20.0 * Math.sin(2.0 * x * this.PI)) * 2.0 / 3.0;
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ret += (20.0 * Math.sin(y * this.PI) + 40.0 * Math.sin(y / 3.0 * this.PI)) * 2.0 / 3.0;
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ret += (160.0 * Math.sin(y / 12.0 * this.PI) + 320 * Math.sin(y * this.PI / 30.0)) * 2.0 / 3.0;
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return ret;
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},
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transformLon: function (x, y) {
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var ret = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * Math.sqrt(Math.abs(x));
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ret += (20.0 * Math.sin(6.0 * x * this.PI) + 20.0 * Math.sin(2.0 * x * this.PI)) * 2.0 / 3.0;
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ret += (20.0 * Math.sin(x * this.PI) + 40.0 * Math.sin(x / 3.0 * this.PI)) * 2.0 / 3.0;
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ret += (150.0 * Math.sin(x / 12.0 * this.PI) + 300.0 * Math.sin(x / 30.0 * this.PI)) * 2.0 / 3.0;
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return ret;
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}
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};
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var params = ${requestScope.carTrajectoryParams};
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var sensorInfo = params["sensorInfo"];
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var map = new BMap.Map("mapCanvas", {enableMapClick: false});
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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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map.setMapStyle(mapStyle);
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//地图类型
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var mapType = new BMap.MapTypeControl(
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{
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mapTypes: [BMAP_NORMAL_MAP, BMAP_SATELLITE_MAP],
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anchor: BMAP_ANCHOR_TOP_RIGHT
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}
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);
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map.addControl(mapType);
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map.setMapType(BMAP_SATELLITE_MAP);//设置默认地图类型（卫星地图）
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var navigation = new BMap.NavigationControl({
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anchor: BMAP_ANCHOR_BOTTOM_LEFT,
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type: BMAP_NAVIGATION_CONTROL_LARGE
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});
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map.addControl(navigation);//缩放控件
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map.enableScrollWheelZoom(true); // 开启鼠标滚轮缩放
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map.addControl(new BMap.ScaleControl());
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if (sensorInfo.length === 0) {
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showNoFlightTrajectory();
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}
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var trackPoints = [];//存放从后台获取到的所有历史轨迹点的数据
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var points = [];
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//格子尺寸
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var size = 50;
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var distance = size / 2 / Math.sin(1 * Math.PI / 4);
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//要显示的因子
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var sensor = $("input[type='radio']:checked").val();
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for (var i = 0; i < sensorInfo.length; i++) {
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if (typeof (sensorInfo[i]["e76"]) == "undefined") {
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sensorInfo.splice(i, 1);
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i--;
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} else {
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var lon = parseFloat(sensorInfo[i].e76.substr(0, sensorInfo[i].e76.length - 1));
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var lat = parseFloat(sensorInfo[i].e77.substr(0, sensorInfo[i].e77.length - 1));
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if (lon > 150 || lon < 70 || lat <= 20 || lat > 60) {
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sensorInfo.splice(i, 1);
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i--;
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}
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if (i > 1) {
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if (sensorInfo[i]["e76"] === sensorInfo[i - 1]["e76"] && sensorInfo[i]["e77"] === sensorInfo[i - 1]["e77"]) {
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sensorInfo.splice(i, 1);
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i--;
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}
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}
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}
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}
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points = getShowPoints();
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map.centerAndZoom(points, 13);// 根据经纬度显示地图的范围
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map.setViewport(points);// 根据提供的地理区域或坐标设置地图视野
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drawPolygon(sensor);//多边形
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drawLine();//轨迹路线
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drawStartAndEnd();//起点和终点标注
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//无数据时显示
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function showNoFlightTrajectory() {
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var point = new BMap.Point(120.987287, 31.391562);
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map.centerAndZoom(point, 17);
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setTimeout(function () {
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document.getElementById("cpm").style.display = 'block';
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}, 250);
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}
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//以一个为中心，一定角度，距离为distance找点
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function getPoint(angle, lng, lat, distance) {
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var EARTH_RADIUS = 6378137;
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//将距离转换成经度的计算公式
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var ra = distance / EARTH_RADIUS;
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// 转换为radian，否则结果会不正确
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angle = angle / 180 * Math.PI;
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lng = lng / 180 * Math.PI;
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lat = lat / 180 * Math.PI;
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lng = lng + Math.atan2(Math.sin(angle) * Math.sin(ra) * Math.cos(lat), Math.cos(ra) - Math.sin(lat) * Math.sin(lat));
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lat = Math.asin(Math.sin(lat) * Math.cos(ra) + Math.cos(lat) * Math.sin(ra) * Math.cos(angle));
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// 转为正常的10进制经纬度
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lng = lng * 180 / Math.PI;
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lat = lat * 180 / Math.PI;
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return new BMap.Point(lng, lat);
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}
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//多边形填充颜色
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function getColor(senosor, data) {
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var color;
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switch (sensor) {
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case 'e1':
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if (data < 35) {
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color = '#0FB820';
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} else if (data < 75) {
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color = '#B8B002';
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} else if (data < 115) {
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color = '#E55F03';
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} else if (data < 150) {
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color = '#C9031B';
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} else if (data < 250) {
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color = '#C00160';
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} else {
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color = '#BC0238';
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}
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break;
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case 'e2':
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if (data < 50) {
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color = '#0FB820';
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} else if (data < 150) {
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color = '#B8B002';
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} else if (data < 250) {
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color = '#E55F03';
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} else if (data < 350) {
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color = '#C9031B';
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} else if (data < 420) {
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color = '#C00160';
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} else {
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color = '#BC0238';
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}
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break;
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case 'e17':
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if (data < 1.5) {
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color = '#0FB820';
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} else if (data < 3) {
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color = '#B8B002';
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} else if (data < 5) {
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color = '#E55F03';
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} else {
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color = '#BC0238';
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}
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break;
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default:
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color = '#0FB820';
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break;
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}
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return color;
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}
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//画方块，上色，添加文字
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function drawPolygon(sensor) {
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$.each(points, function (item, point) {
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var sw = getPoint(225, point.lng, point.lat, distance);
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var ne = getPoint(45, point.lng, point.lat, distance);
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var data = point[sensor];
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//根据因子浓度变换方块颜色
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color = getColor(sensor, data);
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var polygon = new BMap.Polygon([
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new BMap.Point(sw.lng, sw.lat),//左下角
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new BMap.Point(ne.lng, sw.lat),//左上角
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new BMap.Point(ne.lng, ne.lat),//右上角
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new BMap.Point(sw.lng, ne.lat)//右下角
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], {strokeWeight: 0.5, strokeOpacity: 0.5, fillColor: color});
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map.addOverlay(polygon);
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//方块内添加label文本
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setLabelStyle(data, point);
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});
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}
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//绘制带箭头折线
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function drawLine() {
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//绘制箭头及其样式
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var sy = new BMap.Symbol(BMap_Symbol_SHAPE_BACKWARD_OPEN_ARROW, {
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scale: 0.6,//图标缩放大小
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strokeColor: 'white',//设置矢量图标的线填充颜色
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strokeWeight: 3,//设置线宽
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});
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var icons = new BMap.IconSequence(sy, '100%', '4%', false);//设置为true，可以对轨迹进行编辑
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//绘制折线以及样式
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var trackLine = new BMap.Polyline(points, {
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strokeColor: "red",//设置颜色
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strokeWeight: 4,//宽度
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strokeOpacity: 0.3,//折线的透明度，取值范围0 - 1
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enableEditing: false,//是否启用线编辑，默认为false
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enableClicking: false,//是否响应点击事件，默认为true
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icons: [icons],
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});
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map.addOverlay(trackLine);
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}
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//起点和终点标注
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function drawStartAndEnd() {
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var startIcon = new BMap.Icon("/img/start.png", new BMap.Size(48, 48));
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var startMark = new BMap.Marker(points[0], {icon: startIcon, offset: new BMap.Size(0, -20)});
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map.addOverlay(startMark);
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var endIcon = new BMap.Icon("/img/end.png", new BMap.Size(48, 48));
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var endMark = new BMap.Marker(points[points.length - 1], {icon: endIcon, offset: new BMap.Size(0, -20)});
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map.addOverlay(endMark);
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}
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//格子间隔>=50m的放进points
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function getShowPoints() {
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points.push(convertPoint(0));
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for (var i = 1; i < sensorInfo.length; i++) {
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var flag = true;
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var point1 = convertPoint(i);
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var sw1 = getPoint(225, point1.lng, point1.lat, distance);
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var ne1 = getPoint(45, point1.lng, point1.lat, distance);
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for (var j = 0; j < points.length; j++) {
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var point2 = points[j];
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var dis = parseInt(map.getDistance(point1, point2));
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if (dis < size) {
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flag = false;
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}
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}
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if (flag) {
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points.push(point1);
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}
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}
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return points;
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}
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//point上添加label文本
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function setLabelStyle(content, point) {
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var label = new BMap.Label("<span class='my-maptip'>" + content + "<br /><span>",//为lable填写内容
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{
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offset: new BMap.Size(-8, -10),//label的偏移量，为了让label的中心显示在点上
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position: point
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}
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);//label的位置
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var offsetSize = new BMap.Size(0, 0);
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var size = "10px";
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if (map.getZoom() <= 16) {
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size = "0px";
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}
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var labelStyle = {
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border: "0",
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fontSize: size,
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height: "20px",
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lineHeight: "20px",
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fontFamily: "微软雅黑",
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backgroundColor: "0.05",
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fontWeight: "bold"
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};
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label.setStyle(labelStyle);
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map.addOverlay(label);
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}
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//地图缩放级别监控
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map.addEventListener("zoomend", function () {
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//这里根据缩放显示和隐藏文本
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var zoom = this.getZoom();
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$('span.my-maptip').parent()[zoom <= 16 ? 'hide' : 'show']();
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$('span.my-maptip').parent().css("font-size", 30 - zoom);
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});
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$("#selectSenor").change(function () {
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map.clearOverlays()
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sensor = $("input[type='radio']:checked").val();
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drawPolygon(sensor);
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drawLine();
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drawStartAndEnd();
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})
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//获取经纬度点
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function convertPoint(index) {
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var value = sensorInfo[index];
|
if (typeof (value.e76) == "undefined") {
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showNoFlightTrajectory();
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}
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var lon = parseFloat(value.e76.substr(0, value.e76.length - 1));
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var lat = parseFloat(value.e77.substr(0, value.e77.length - 1));
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var m = GPS.gcj_encrypt(lat, lon).lon;
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var n = GPS.gcj_encrypt(lat, lon).lat;
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lon = GPS.bd_encrypt(n, m).lon;
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lat = GPS.bd_encrypt(n, m).lat;
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var point = new BMap.Point(lon, lat);
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point['e1'] = parseInt(sensorInfo[index]['e1']);
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point['e2'] = parseInt(sensorInfo[index]['e2']);
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point['e17'] = parseFloat(sensorInfo[index]['e17']).toFixed(2);
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return point;
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}
|
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//获得角度的函数
|
function getAngle(n, next) {
|
var ret
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var w1 = n.lat / 180 * Math.PI
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var j1 = n.lng / 180 * Math.PI
|
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var w2 = next.lat / 180 * Math.PI
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var j2 = next.lng / 180 * Math.PI
|
|
ret = 4 * Math.pow(Math.sin((w1 - w2) / 2), 2) - Math.pow(Math.sin((j1 - j2) / 2) * (Math.cos(w1) - Math.cos(w2)), 2);
|
ret = Math.sqrt(ret);
|
|
// var temp = Math.sin(Math.abs(j1 - j2) / 2) * (Math.cos(w1) + Math.cos(w2));
|
var temp = Math.sin((j1 - j2) / 2) * (Math.cos(w1) + Math.cos(w2));
|
ret = ret / temp;
|
|
ret = Math.atan(ret) / Math.PI * 180;
|
ret += 90;
|
|
// 这里用如此臃肿的if..else是为了判定追踪单个点的具体情况,从而调整ret的值
|
if (j1 - j2 < 0) {
|
// console.log('j1<j2')
|
if (w1 - w2 < 0) {
|
// console.log('w1<w2')
|
ret;
|
} else {
|
// console.log('w1>w2')
|
ret = -ret + 180;
|
}
|
} else {
|
// console.log('j1>j2')
|
if (w1 - w2 < 0) {
|
// console.log('w1<w2')
|
ret = 180 + ret;
|
} else {
|
// console.log('w1>w2')
|
ret = -ret;
|
}
|
}
|
return ret;
|
}
|
</script>
|
