<%@ 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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#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_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="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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<!-- 传sensorInfo,regionCode,regionName,monitorPoint,device-->
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<div id="carTrajectoryParams" style="display: none;">
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${requestScope.carTrajectoryParams}
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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 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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//console.log(i);
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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 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 = $.parseJSON($("#carTrajectoryParams").html());
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var sensorInfo = params["sensorInfo"];
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var sensorsMap = params['sensorsMap'];
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//var map = new BMap.Map("mapCanvas", defaultParam);
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var map = new BMap.Map("mapCanvas", {enableMapClick: false});
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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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if (sensorInfo.length == 0) {
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showNoFlightTrajectory();
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}
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var trackPoints = []; //用来存放从后台获取到的所有历史轨迹点的数据
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if (sensorInfo.length > 0) {
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$.each(sensorInfo, function (item, value) {
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if (typeof (value.e76) == "undefined") {
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showNoFlightTrajectory();
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} else {
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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 lon1 = GPS.gcj_encrypt(lat, lon).lon;
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var lat1 = GPS.gcj_encrypt(lat, lon).lat;
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var lon2 = GPS.bd_encrypt(lat1, lon1).lon;
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var lat2 = GPS.bd_encrypt(lat1, lon1).lat;
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trackPoints.push(new BMap.Point(lon2, lat2));
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}
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})
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map.centerAndZoom(trackPoints, 13);// 根据经纬度显示地图的范围
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map.setViewport(trackPoints);// 根据提供的地理区域或坐标设置地图视野
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addStartMarker(new BMap.Point(trackPoints[0].lng, trackPoints[0].lat), '起点', map);
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var carMk;
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//小车行驶图标
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var drivingPoint = new BMap.Icon('/img/car.png', new BMap.Size(52, 26));
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//终点图标
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var terminalPoint = new BMap.Icon('/img/end.png', new BMap.Size(48, 48));
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var i = 0;
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var interval = setInterval(function () {
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if (i >= trackPoints.length) {
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clearInterval(interval);
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return;
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}
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var pm2_5 = sensorInfo[i].e1.substr(0, sensorInfo[i].e1.length - 5);
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var traceColor;
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if (pm2_5 <= 35) {
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traceColor = "#00EB5E";
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} else if (pm2_5 > 35 && pm2_5 <= 115) {
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traceColor = "#FFF000";
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} else if (pm2_5 > 115 && pm2_5 <= 150) {
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traceColor = "#FF8400";
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} else if (pm2_5 > 150) {
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traceColor = "#FF0000";
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}
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drowLine(map, trackPoints[i], trackPoints[i + 1], traceColor);//画线调用
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i = i + 1;
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}, 20);
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}
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//添加起始图标
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function addStartMarker(point, name, mapInit) {
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if (name == "起点") {
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var myIcon = new BMap.Icon("/img/start.png", new BMap.Size(48, 48));
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window.marker = new BMap.Marker(point, {icon: myIcon, offset: new BMap.Size(0, -20)});
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mapInit.addOverlay(marker);
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}
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}
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// 划线
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function drowLine(map, PointArr, PointArrNext, traceColor) {
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if (PointArrNext != undefined) {
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var polyline = new BMap.Polyline(
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[
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new BMap.Point(PointArr.lng, PointArr.lat),
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new BMap.Point(PointArrNext.lng, PointArrNext.lat)
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],
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{
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strokeColor: traceColor,
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strokeWeight: 4,
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strokeOpacity: 1
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}); //创建折线
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map.addOverlay(polyline);
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addMarkerEnd(new BMap.Point(PointArrNext.lng, PointArrNext.lat), '小车行驶', map, PointArrNext, new BMap.Point(PointArr.lng, PointArr.lat));//添加图标
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} else {
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addMarkerEnd(new BMap.Point(PointArr.lng, PointArr.lat), '终点', map);//添加终点图标
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}
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}
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//添加行驶和终点图标
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function addMarkerEnd(point, name, mapInit, trackUnit, prePoint) {
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if (name == "小车行驶") {
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if (carMk) {//先判断第一次进来的时候这个值有没有定义，有的话就清除掉上一次的。然后在进行画图标。第一次进来时候没有定义也就不走这块，直接进行画图标
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mapInit.removeOverlay(carMk);
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}
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carMk = new BMap.Marker(point, {icon: drivingPoint}); // 创建标注
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carMk.setRotation(trackUnit.route);//trackUnit.route
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//getAngle(point,prePoint);// js求解两点之间的角度
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carMk.setRotation(getAngle(point, prePoint) - 90);// 旋转的角度
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mapInit.addOverlay(carMk); // 将标注添加到地图中
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//carMk.setAnimation(BMAP_ANIMATION_BOUNCE); //跳动的动画
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} else {
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mapInit.removeOverlay(carMk);
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carMk = new BMap.Marker(point, {icon: terminalPoint, offset: new BMap.Size(0, -20)}); // 创建标注
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mapInit.addOverlay(carMk);
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}
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}
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//获得角度的函数
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function getAngle(n, next) {
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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
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ret = 4 * Math.pow(Math.sin((w1 - w2) / 2), 2) - Math.pow(Math.sin((j1 - j2) / 2) * (Math.cos(w1) - Math.cos(w2)), 2);
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ret = Math.sqrt(ret);
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// var temp = Math.sin(Math.abs(j1 - j2) / 2) * (Math.cos(w1) + Math.cos(w2));
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var temp = Math.sin((j1 - j2) / 2) * (Math.cos(w1) + Math.cos(w2));
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ret = ret / temp;
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ret = Math.atan(ret) / Math.PI * 180;
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ret += 90;
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// 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
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if (j1 - j2 < 0) {
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// console.log('j1<j2')
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if (w1 - w2 < 0) {
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// console.log('w1<w2')
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ret;
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} else {
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// console.log('w1>w2')
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ret = -ret + 180;
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}
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} else {
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// console.log('j1>j2')
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if (w1 - w2 < 0) {
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// console.log('w1<w2')
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ret = 180 + ret;
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} else {
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// console.log('w1>w2')
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ret = -ret;
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}
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}
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return ret;
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}
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function showNoFlightTrajectory() {
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var longitude = 120.987287;
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var latitude = 31.391562;
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var point = new BMap.Point(longitude, latitude);
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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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</script>
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