我有一个这样的数据库表:
我原来的路线是:
但是,当我使用数据库值加载地图时,它变成了这样:
表示它不包含所有点并且路点已更改。我尝试加载地图与我创建的相同,但没有成功。
它适用于一条路线,意味着A to B
。但是当我尝试加载多条路线(例如A to B to c
)时会产生问题。
那么问题是什么?
完整代码:
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<body onLoad="goma()">
<div id="mappy" style="width:80%; height:400px; float:left; margin-top:100px"></div>
<script>
var map, ren, ser;
var request;
var data = {};
function goma()
{
map = new google.maps.Map( document.getElementById('mappy'), {'zoom':12, 'mapTypeId': google.maps.MapTypeId.ROADMAP, 'center': new google.maps.LatLng(23.0171240, 72.5330533) })
ren = new google.maps.DirectionsRenderer( {'draggable':true} );
ren.setMap(map);
ser = new google.maps.DirectionsService();
fetchdata()
}
function fetchdata()
{
var jax = window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject('Microsoft.XMLHTTP');
jax.open('POST','process.php');
jax.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
jax.send('command=fetch')
jax.onreadystatechange = function(){ if(jax.readyState==4) {
var jsonobj = JSON.parse(jax.responseText);
try {
console.log(jax.responseText);
var tot_length=JSON.parse(jax.responseText).length;
var wp = [];
var startos=eval('(' + jsonobj[0] + ')');
var lastos=eval('(' + jsonobj[tot_length-1] + ')');
for(var j=0;j<JSON.parse(jax.responseText).length;j++)
{
var os = eval('(' + jsonobj[j] + ')');
for(var i=0;i<os.waypoints.length;i++)
{
wp.push({
'location': new google.maps.LatLng(os.waypoints[i][0], os.waypoints[i][1]),
'stopover':false
});
}
}
alert(startos.start.lat+","+startos.start.lng+"<br>"+lastos.end.lat+","+lastos.end.lng);
request =
{
origin:new google.maps.LatLng(startos.start.lat,startos.start.lng),
destination:new google.maps.LatLng(lastos.end.lat,lastos.end.lng),
waypoints:wp,
travelMode: google.maps.DirectionsTravelMode.DRIVING
};
ser.route(request, function(res,sts) {
if (sts == google.maps.DirectionsStatus.OK)
{
ren.setDirections(res);
}
});
}
catch(e){ alert(e); }
}}
}
</script>
</body>
提前致谢。
答案 0 :(得分:0)
看起来你正在以错误的顺序传递航路点。确保:
wp[0] = A, wp[1] = B and wp[2] = C