通过百度API回放经纬度记录的信息(DEMO)

来源：互联网发布：star discover算法编辑：程序博客网时间：2024/05/20 20:22
废话少说，直接上代码:
<!DOCTYPE html><html><head><meta name="viewport" content="initial-scale=1.0, user-scalable=no" /><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>Track</title><style type="text/css">html{height:100%}body{height:100%;margin:0px;padding:0px}#controller{width:100%; border-bottom:3px outset; height:30px; filter:alpha(Opacity=100); -moz-opacity:1; opacity:1; z-index:10000; background-color:lightblue;}#container{height:100%}</style><script type="text/javascript" src="http://api.map.baidu.com/api?v=1.5&ak=D2b4558ebed15e52558c6a766c35ee73"></script><script type="text/javascript">//获取所有点的坐标var points = [new BMap.Point(114.00100, 22.550000), new BMap.Point(114.00130, 22.550000),new BMap.Point(114.00160, 22.550000), new BMap.Point(114.00200, 22.550000),new BMap.Point(114.00300, 22.550500), new BMap.Point(114.00400, 22.550000),new BMap.Point(114.00500, 22.550000), new BMap.Point(114.00505, 22.549800),new BMap.Point(114.00510, 22.550000), new BMap.Point(114.00515, 22.550000),new BMap.Point(114.00525, 22.550400), new BMap.Point(114.00537, 22.549500)];var map; //百度地图对象var car; //汽车图标var label; //信息标签var centerPoint;var timer; //定时器var index = 0; //记录播放到第几个pointvar followChk, playBtn, pauseBtn, resetBtn; //几个控制按钮function init() {followChk = document.getElementById("follow");playBtn = document.getElementById("play");pauseBtn = document.getElementById("pause");resetBtn = document.getElementById("reset");//初始化地图,选取第一个点为起始点map = new BMap.Map("container");map.centerAndZoom(points[0], 15);map.enableScrollWheelZoom();map.addControl(new BMap.NavigationControl());map.addControl(new BMap.ScaleControl());map.addControl(new BMap.OverviewMapControl({isOpen: true}));//通过DrivingRoute获取一条路线的pointvar driving = new BMap.DrivingRoute(map);driving.search(new BMap.Point(114.00100, 22.550000), new BMap.Point(113.95100, 22.550000));driving.setSearchCompleteCallback(function() {//得到路线上的所有pointpoints = driving.getResults().getPlan(0).getRoute(0).getPath();//画面移动到起点和终点的中间centerPoint = new BMap.Point((points[0].lng + points[points.length - 1].lng) / 2, (points[0].lat + points[points.length - 1].lat) / 2);map.panTo(centerPoint);//连接所有点map.addOverlay(new BMap.Polyline(points, {strokeColor: "black", strokeWeight: 5, strokeOpacity: 1}));//显示小车子label = new BMap.Label("", {offset: new BMap.Size(-20, -20)});car = new BMap.Marker(points[0]);car.setLabel(label);map.addOverlay(car);//点亮操作按钮playBtn.disabled = false;resetBtn.disabled = false;});}function play() {playBtn.disabled = true;pauseBtn.disabled = false;var point = points[index];if(index > 0) {map.addOverlay(new BMap.Polyline([points[index - 1], point], {strokeColor: "red", strokeWeight: 1, strokeOpacity: 1}));}label.setContent("经度: " + point.lng + "<br>纬度: " + point.lat);car.setPosition(point);index++;if(followChk.checked) {map.panTo(point);}if(index < points.length) {timer = window.setTimeout("play(" + index + ")", 200);} else {playBtn.disabled = true;pauseBtn.disabled = true;map.panTo(point);}}function pause() {playBtn.disabled = false;pauseBtn.disabled = true;if(timer) {window.clearTimeout(timer);}}function reset() {followChk.checked = false;playBtn.disabled = false;pauseBtn.disabled = true;if(timer) {window.clearTimeout(timer);}index = 0;car.setPosition(points[0]);map.panTo(centerPoint);}</script></head><body onload="init();"><div id="controller" align="center"><input id="follow" type="checkbox"><span style="font-size:12px;">画面跟随</span></input><input id="play" type="button" value="播放" onclick="play();" disabled /><input id="pause" type="button" value="暂停" onclick="pause();" disabled /><input id="reset" type="button" value="重置" onclick="reset()" disabled /></div><div id="container"></div></body></html>
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