【发布时间】：2013-03-26 01:50:05
【问题描述】：
我试图让用户输入 2 个城市，使用谷歌的自动填充，然后在谷歌地图上画出它们之间的界线。自动填充对两个盒子都很好。起始位置有效（当用户输入一个城市时，地图会放大到该城市并出现标记），但输入结束位置时没有任何反应。如果有人看到问题所在，我将不胜感激一些建议。
Directions.html
<!DOCTYPE html>
<html>
<head>
<title>Google Maps JavaScript API v3 Example: Places Autocomplete</title>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false&libraries=places"></script>
<style>
body
{
font-family: sans-serif;
font-size: 14px;
}
#lred { color: #FF0000;}
#map-canvas
{
height: 400px;
width: 600px;
margin-top: 0.6em;
}
start {border: 1px solid rgba(0, 0, 0, 0.5);}
start.notfound
{
background-color: #F5A9A9;
}
end {border: 1px solid rgba(0, 0, 0, 0.5);}
end.notfound
{
background-color: #F5A9A9;
}
</style>
<script>
var directionDisplay;
var directionsService = new google.maps.DirectionsService();
function initialize()
{
directionsDisplay = new google.maps.DirectionsRenderer();
var mapOptions =
{
center: new google.maps.LatLng(39.8282, -98.5795),
zoom: 4,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
directionsDisplay.setMap(map);
var options =
{
types: ['(cities)'],
componentRestrictions: {country: 'us'}
};
var start = document.getElementById('start');
var sAutocomplete = new google.maps.places.Autocomplete(start, options);
var end = document.getElementById('end');
var eAutocomplete = new google.maps.places.Autocomplete(end, options);
sAutocomplete.bindTo('bounds', map);
eAutocomplete.bindTo('bounds', map);
var infowindow = new google.maps.InfoWindow();
var marker = new google.maps.Marker({ map: map });
google.maps.event.addListener(sAutocomplete, 'place_changed', function() {
infowindow.close();
marker.setVisible(false);
start.className = '';
var place = sAutocomplete.getPlace();
// Inform the user that the place was not found and return.
if (!place.geometry)
{
start.className = 'notfound';
return;
}
else
{
map.setCenter(place.geometry.location);
map.setZoom(6); // Why 17? Because it looks good.
}
var image =
{
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(35, 35)
};
marker.setIcon(image);
marker.setPosition(place.geometry.location);
marker.setVisible(true);
});
}
function calcRoute() {
var start2 = document.getElementById("start").value;
var end2 = document.getElementById("end").value;
var request = {
origin:start2,
destination:end2,
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
}
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body onload="initialize()">
<div>
<input id="start" onchange="calcRoute();" type="text" size="50">
<input id="end" onchange="calcRoute();" type="text" size="50">
</div>
<div id="map-canvas"></div>
</body>
</html>
【问题讨论】：
标签： html css api google-maps