<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
<title>公交线路查询</title>
<link rel="stylesheet" href="https://a.amap.com/jsapi_demos/static/demo-center/css/demo-center.css"/>
<style type="text/css">
html,body,#container{
height:100%;
}
</style>
</head>
<body>
<div id="container"></div>
<div class="input-card" style='width:18rem;'>
<label style='color:grey'>公交线路查询</label>
<div class="input-item">
<div class="input-item-prepend"><span class="input-item-text" >线路名称</span></div>
<input id='BusLineName' type="text" value='919' >
</div>
<input id="search" type="button" class="btn" value="查询" />
</div>
<script type="text/javascript"
src="https://webapi.amap.com/maps?v=1.4.15&key=您申请的key值&plugin=AMap.LineSearch"></script>
<script language="javascript">
/*
* 该示例主要流程分为三个步骤
* 1. 首先调用公交路线查询服务(lineSearch)
* 2. 根据返回结果解析，输出解析结果(lineSearch_Callback)
* 3. 在地图上绘制公交线路()
*/
var map = new AMap.Map("container", {
resizeEnable: true,
center: [116.397428, 39.90923],//地图中心点
zoom: 13 //地图显示的缩放级别
});
var linesearch;
/*公交线路查询*/
function lineSearch() {
var busLineName = document.getElementById('BusLineName').value;
if(!busLineName) return;
//实例化公交线路查询类，只取回一条路线
linesearch = new AMap.LineSearch({
pageIndex: 1,
city: '北京',
pageSize: 2,
extensions: 'all'
});
//搜索“536”相关公交线路
linesearch.search(busLineName, function(status, result) {
map.clearMap()
if (status === 'complete' && result.info === 'OK') {
lineSearch_Callback(result);
} else {
alert(result);
}
});
}
/*公交路线查询服务返回数据解析概况*/
function lineSearch_Callback(data) {
var lineArr = data.lineInfo;
var lineNum = data.lineInfo.length;
if (lineNum == 0) {
} else {
for (var i = 0; i < lineNum; i++) {
var pathArr = lineArr[i].path;
var stops = lineArr[i].via_stops;
var startPot = stops[0].location;
var endPot = stops[stops.length - 1].location;
if (i == 0) //作为示例，只绘制一条线路
drawbusLine(startPot, endPot, pathArr);
}
}
}
/*绘制路线*/
function drawbusLine(startPot, endPot, BusArr) {
//绘制起点，终点
new AMap.Marker({
map: map,
position: startPot, //基点位置
icon: "https://webapi.amap.com/theme/v1.3/markers/n/start.png",
zIndex: 10
});
new AMap.Marker({
map: map,
position: endPot, //基点位置
icon: "https://webapi.amap.com/theme/v1.3/markers/n/end.png",
zIndex: 10
});
//绘制乘车的路线
busPolyline = new AMap.Polyline({
map: map,
path: BusArr,
strokeColor: "#09f",//线颜色
strokeOpacity: 0.8,//线透明度
isOutline:true,
outlineColor:'white',
strokeWeight: 6//线宽
});
map.setFitView();
}
lineSearch();
document.getElementById('search').onclick = lineSearch;
</script>
</body>
</html>
