我想借助Google地图中的多个标记来切换我的路线。它适用于单一目的地。获取到该单一目的地的路线后,如果我点击任何其他目的地标记,则不会使用新路线更新。我有以下代码:
<script type="text/javascript">
var directionsDisplay;
var directionsService = new google.maps.DirectionsService();
var map;
var home = new google.maps.LatLng(40.703188,-74.005029);
function initialize() {
directionsDisplay = new google.maps.DirectionsRenderer();
var myOptions = {
zoom: 14,
mapTypeId: google.maps.MapTypeId.ROADMAP,
center: home
}
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
directionsDisplay.setMap(map);
}
function calcRoute(location) {
var request = {
origin: home,
destination: location.position,
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
}
});
}
function getNearbyStores() {
var searchQuery = $('#searchBox').val();
var request =
{
location: home,
radius: '10000',
name: [''+searchQuery]
};
var service = new google.maps.places.PlacesService(map);
service.search( request, callback );
var marker;
function callback(results, status)
{
if (status == google.maps.places.PlacesServiceStatus.OK)
{
var infowindow = new google.maps.InfoWindow();
var marker, i;
for ( i = 0; i < results.length; i++ )
{
var place = results[i];
var loc = place.geometry.location;
var marker = new google.maps.Marker
({
position: new google.maps.LatLng(loc.Pa,loc.Qa)
});
marker.setMap(map);
google.maps.event.addListener(marker, 'click', function() {
calcRoute(this);
});
}
}
}
}
</script>
答案 0 :(得分:2)
我正在使用正在运行的代码发布另一个答案。
问题不在您发布的代码中,或者至少无法从中推断出来。我不知道你的searchQuery
是怎样的,但是你说你得到了目的地的标记,那么应该没问题。但你也可以看一下。我将request.name
替换为request.types
并添加了一个主页位置标记,以便更好地了解行为。请注意,你的家庭位置在水面,你想开车 - 但令人惊讶的是谷歌可以处理它!
您可以在Firefox或Chrome中测试jsFiddle代码(IE中存在jsFiddle问题)。
答案 1 :(得分:0)
我发现了两个潜在的问题:
(1)
position: new google.maps.LatLng(loc.Pa,loc.Qa)
// should preferably be:
position: new google.maps.LatLng(loc.latitude(), loc.longitude())
(2)
google.maps.event.addListener(marker, 'click', function() {
calcRoute(this);
// here 'this' refers to the marker, but calcRoute() expects location
// should probably be:
calcRoute(this.position);
});