<%@ 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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</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="uavTrajectoryParams" style="display: none;">
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${requestScope.uavTrajectoryParams}
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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 defaultParam = {
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minZoom: 12,
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maxZoom: 20
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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 = $.parseJSON($("#uavTrajectoryParams").html());
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moralMap['params'] = params;
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var sensorInfo = params["sensorInfo"];
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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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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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var winfowText;
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var coincidentPoints = new Array();
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if (sensorInfo.length > 0) {
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$.each(sensorInfo, function (item, value) {
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trackPoints.push(new BMap.Point(value.e76, value.e77));
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})
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for (var i = 0; i < trackPoints.length; i++) {
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var startPoint = trackPoints[i];
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var endPoint = trackPoints[i + 1];
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var marker;
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var distance = parseInt(map.getDistance(startPoint, endPoint));
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map.addOverlay(polyline);// 画两点间线
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var arrowLength;//两点间箭头长度
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if (distance <= 5) {
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arrowLength = 0;
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} else if (distance > 5 && distance <= 10) {
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arrowLength = 2;
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} else {
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arrowLength = 5;
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}
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if (coincidentPoints.indexOf(i) > -1) {
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var polyline = new BMap.Polyline([
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trackPoints[i],
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trackPoints[i + 1]
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],
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{strokeColor: "green", strokeWeight: 2, strokeOpacity: 1}
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);
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distance = parseInt(map.getDistance(trackPoints[i], trackPoints[i + 1]));
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map.addOverlay(polyline);// 画两点间线
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if (distance <= 5) {
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arrowLength = 0;
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} else if (distance > 5 && distance <= 10) {
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arrowLength = 2;
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} else {
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arrowLength = 5;
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}
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addArrow(polyline, arrowLength, Math.PI / 7);
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//判断是否已经已经显示过该点的信息，避免重复。
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continue;
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}
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var startIcon = new BMap.Icon("/img/start.png", new BMap.Size(48, 48));
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var endIcon = new BMap.Icon("/img/end.png", new BMap.Size(48, 48));
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if (i == 0) {
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map.centerAndZoom(startPoint, 17);
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marker = new BMap.Marker(startPoint, {icon: startIcon, offset: new BMap.Size(0, -20)});
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}
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if (i == trackPoints.length - 1) {
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marker = new BMap.Marker(startPoint, {icon: endIcon, offset: new BMap.Size(0, -20)});
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}
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if (i != 0 && i != trackPoints.length - 1) {
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marker = new BMap.Marker(startPoint);
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}
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winfowText = "时间：" + sensorInfo[i].uavDate
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+ "</br> 经度：" + sensorInfo[i].e76
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+ "</br> 纬度：" + sensorInfo[i].e77
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+ "</br> 高度：" + sensorInfo[i].e78
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+ "</br> 速度x：" + sensorInfo[i].e79
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+ "</br> 速度y：" + sensorInfo[i].e80
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+ "</br> 速度z：" + sensorInfo[i].e81;
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if (distance <= 1.9) {
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winfowText = '<p id="' + i + '" onclick="openInfo(this)">' + "时间：" + sensorInfo[i].uavDate + "</p>";
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}
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var count = 0;
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for (var j = i + 1; j < trackPoints.length; j++) {
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distance = map.getDistance(trackPoints[i], trackPoints[j]).toFixed(5);
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if (distance <= 1.9) {
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coincidentPoints.push(j);
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count++;
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winfowTextAdd = '<p id="' + j + '" onclick="openInfo(this)">' + "时间：" + sensorInfo[j].uavDate + "</p>";
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winfowText += winfowTextAdd;
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if (j == trackPoints.length - 1) {
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marker = new BMap.Marker(trackPoints[j], {icon: endIcon, offset: new BMap.Size(0, -20)});
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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.maxZoom = 20;
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map.addControl(navigation);
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map.addControl(new BMap.ScaleControl());
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}
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}
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}
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(function (x) {
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var infoWindow = new BMap.InfoWindow(winfowText, {enableMessage: false});
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marker.addEventListener("click", function () {
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this.openInfoWindow(infoWindow);
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});
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})(i);
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function openInfo(e) {
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var point = new BMap.Point(sensorInfo[e.id].e76,sensorInfo[e.id].e77);
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// 创建信息窗口对象
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var infoWindow1 = new BMap.InfoWindow("时间：" + sensorInfo[e.id].uavDate
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+ "</br> 经度：" + sensorInfo[e.id].e76
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+ "</br> 纬度：" + sensorInfo[e.id].e77
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+ "</br> 高度：" + sensorInfo[e.id].e78
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+ "</br> 速度x：" + sensorInfo[e.id].e79
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+ "</br> 速度y：" + sensorInfo[e.id].e80
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+ "</br> 速度z：" + sensorInfo[e.id].e81, {enableMessage: false});
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//开启信息窗口
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map.openInfoWindow(infoWindow1, point);
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}
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if (count > 0) {
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var lab = new BMap.Label(count + 1, {position: startPoint, offset: new BMap.Size(-7, -23)});
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lab.setStyle({
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color: "#fff",
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fontSize: "16px",
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backgroundColor: "1",
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border: "0",
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fontWeight: "bold"
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});
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map.addOverlay(lab);
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}
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map.addOverlay(marker);
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var polyline = new BMap.Polyline([
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startPoint,
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endPoint
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],
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{strokeColor: "green", strokeWeight: 2, strokeOpacity: 1}
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);
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if (i < trackPoints.length - 1) {
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map.addOverlay(polyline);// 画两点间线
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addArrow(polyline, arrowLength, Math.PI / 7);
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}
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}
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}
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var longitude;
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var latitude;
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var point;
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if (sensorInfo.length == 0) {
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longitude = 120.987287;
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latitude = 31.391562;
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point = new BMap.Point(longitude, latitude);
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map.centerAndZoom(point, 17);
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alert("查不到相关数据");
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}
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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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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: "green", strokeWeight: 2, strokeOpacity: 1});
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map.addOverlay(Arrow);
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}
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};
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</script>
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