最近做百度地圖的模擬數據，需要獲取某條公交線路沿途站點的坐標信息，貌似百度沒有現成的API，因此做了一個模擬頁面，工具而已，IE6/7/8不支持
復制代碼 代碼如下:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>獲取公交站點坐標</title>
<style type="text/css">
html,body{ height: 100%;}
#results,#coordinate{ display: inline-block; width: 45%; min-height: 200px; border:1px solid #e4e4e4; vertical-align: top;}
</style>
<script src="http://api.map.baidu.com/api?v=1.3" type="text/javascript"></script>
</head>
<body>
<p><label for="busId">公交線路：</label><input type="text" value="521" id="busId" /><input type="button" id="btn-search" value="查詢" /></p>
<div id="results"></div>
<div id="coordinate"></div>
<script type="text/javascript">
(function(){
var tempVar;
var busline = new BMap.BusLineSearch('武漢',{
renderOptions:{panel:"results"},
onGetBusListComplete: function(result){
if(result) {
tempVar = result;//此時的結果並不包含坐標信息，所以getCoordinate函數不能在此調用。通過跟蹤變量，坐標是在onGetBusListComplete之後才被百度的包添加進來的
busline.getBusLine(result.getBusListItem(0));
}
},
// api文檔中一共有四個回調，除了onGetBusListComplete和onBusLineHtmlSet之外，還有onBusListHtmlSet和onGetBusLineComplete，
// 經過測試只有在onBusLineHtmlSet這一步（線路格式化完畢）的時候，才會將坐標添加到tempVar中
// 所以上面busline.getBusLine(result.getBusListItem(0));是必須的，不然沒有辦法獲得坐標列表
onBusLineHtmlSet : function(){
try{
getCoordinate(tempVar);
}catch(e){
}
}
});
function getCoordinate(result){
var coordinate = document.getElementById("coordinate");
var stations = result['0']._stations;
var html = [];
stations.forEach(function(item){
html.push('<li>' + item.name + ' ' + item.position.lng + ' ' + item.position.lat + '</li>');
});
coordinate.innerHTML = '<ul>' + html.join('') + '</ul>';
}
document.getElementById('btn-search').onclick = function(){
busline.getBusList(document.getElementById("busId").value);
}
})();
</script>
</body>
</html>
獲取反向線路的話就把var stations = result['0']._stations;改為var stations = result[xx]._stations;整理了一下：
復制代碼 代碼如下:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>獲取公交站點坐標</title>
<style type="text/css">
html,body{ height: 100%;}
#results,#coordinate{ display: inline-block; width: 45%; min-height: 200px; border:1px solid #e4e4e4; vertical-align: top;}
</style>
<script src="http://api.map.baidu.com/api?v=1.3" type="text/javascript"></script>
</head>
<body>
<p><label for="busId">公交線路：</label><input type="text" value="581" id="busId" /><input type="button" id="btn-search" value="查詢" /></p>
<div id="results"></div>
<div id="coordinate"></div>
<script type="text/javascript">
var global = {};
global.tempVar = {};
global.index = 0;
global.lineNo = 0;
var busline = new BMap.BusLineSearch('武漢',{
renderOptions:{panel:"results"},
onGetBusListComplete: function(result){
if(result) {
global.tempVar = result;
}
},
onBusLineHtmlSet : function(){
try{
getCoordinate(global.tempVar);
}catch(e){
}
}
});
function $$(id){
return document.getElementById(id);
}
function getCoordinate(result){
var coordinate = $$("coordinate");
var stations = result[global.index]._stations;
var html = [];
stations.forEach(function(item,index){
html.push('<li>' + global.lineNo + '#' + global.index + '#' + index + '#' + item.name + '#' + item.position.lng + '#' + item.position.lat + '</li>');
});
coordinate.innerHTML = '<ul>' + html.join('') + '</ul>';
}
$$('btn-search').onclick = function(){
global.lineNo = $$("busId").value;
busline.getBusList(global.lineNo);
}
$$('results').addEventListener('click',function(event){
var target = event.target;
if('a' == target.tagName.toLowerCase() && 'dt' == target.parentNode.tagName.toLowerCase()){
event.preventDefault();
var tempHtml = target.parentNode.innerHTML;
var indexOfValue = tempHtml.indexOf('_selectBusListItem(');
global.index = - ( - tempHtml.substring(indexOfValue + '_selectBusListItem('.length,indexOfValue + '_selectBusListItem('.length + 1) );
busline.getBusLine(global.tempVar.getBusListItem(global.index));
}
},false);
</script>
</body>
</html>
來自小西山子