我正在使用 Google map V3 路线服务绘制一条从源地到目的地的简单路线。
我需要添加路线必须经过的一些位置(中点或航点)。 Google map 为此提供了路径点。
我提到了他们的documentation以及添加航点的示例。但是,当我尝试通过添加航点来绘制路线时,仅显示从航点数组中添加的最后位置到目的地的路线。我希望显示从源到目的地的路线,并包含沿路线的航路点。
我已附上我的代码。我哪里出错了?
var map;
var wyPts = [];
function addWayPoints(location)
{
wyPts.push({
location:location,
stopover:true
});
}
function createInfoWindowContent(latLng, contentStr) {
var content = '<p><b>' + contentStr + ' </b> </p>' + 'LatLng: ' + latLng ;
return content;
}
function displayRoute(origin, destination, service, display) {
service.route({
origin : origin,
destination : destination,
//waypoints: [{location: new google.maps.LatLng(30.439025, -97.685654)}, {location: new google.maps.LatLng(30.434882, -97.677015)} , {location:new google.maps.LatLng(30.429495, -97.675274)}],
waypoints:wyPts,
optimizeWaypoints: true,
travelMode : google.maps.DirectionsTravelMode.DRIVING
}, function(response, status) {
if (status === google.maps.DirectionsStatus.OK) {
display.setDirections(response);
} else {
alert('Could not display directions due to: ' + status);
}
});
}
function initMap() {
//////////source destination and middle waypoints
var src = new google.maps.LatLng(30.444719, -97.686202); // //school
//addWayPoints(src);
var midPt1 = new google.maps.LatLng(30.439025, -97.685654); //
addWayPoints(midPt1);
var midPt2 = new google.maps.LatLng(30.434882, -97.677015); //
addWayPoints(midPt2);
var midPt3 = new google.maps.LatLng(30.429495, -97.675274); //
addWayPoints(midPt3);
/* for (var i = 0; i < wyPts.length; i++) {
alert("pts are : " + wyPts[i].location);
} */
var destination = new google.maps.LatLng(30.401820, -97.669545); //
///////////draw the map
map = new google.maps.Map(document.getElementById('map'), {
center : src,
mapTypeControlOptions : {
style : google.maps.MapTypeControlStyle.HORIZONTAL_BAR,
position : google.maps.ControlPosition.TOP_RIGHT,
mapTypeIds : [ google.maps.MapTypeId.ROADMAP,
google.maps.MapTypeId.TERRAIN,
google.maps.MapTypeId.HYBRID ]
},
zoomControl : true,
zoomControlOptions : {
position : google.maps.ControlPosition.RIGHT_CENTER
},
zoom : 14
});
//draw infowindow at src and destination
var coordInfoWindowSrc = new google.maps.InfoWindow({
content: createInfoWindowContent(src , "Source"),
maxWidth : 180
});
coordInfoWindowSrc.setPosition(src);
coordInfoWindowSrc.open(map);
var coordInfoWindowDest = new google.maps.InfoWindow({
content: createInfoWindowContent(destination , "Destination"),
maxWidth : 180
});
coordInfoWindowDest.setPosition(destination);
coordInfoWindowDest.open(map);
//display route
var polylineProps = new google.maps.Polyline({
strokeColor : '#009933',
strokeOpacity : 1.0,
strokeWeight : 3
});
var directionsDisplay = new google.maps.DirectionsRenderer({
draggable : false, //do not make the route draggable
map : map,
suppressMarkers: true ,
polylineOptions : polylineProps
});
var directionsService = new google.maps.DirectionsService();
displayRoute(src, destination, directionsService,directionsDisplay);
//add listener to map
directionsDisplay.addListener(
'change',
function() {
displayRoute(src, destination, directionsService,
directionsDisplay);
});
}
提前致谢。
最佳答案
polylineOptions 匿名对象不是(也不应该是)google.maps.Polyline。
var polylineProps = new google.maps.Polyline({
strokeColor : '#009933',
strokeOpacity : 1.0,
strokeWeight : 3
});
应该是:
var polylineProps = {
strokeColor : '#009933',
strokeOpacity : 1.0,
strokeWeight : 3
};
如果我修复了这个问题,则会出现完整路线的行:
代码片段:
var map;
var wyPts = [];
function addWayPoints(location) {
wyPts.push({
location: location,
stopover: true
});
}
function createInfoWindowContent(latLng, contentStr) {
var content = '<p><b>' + contentStr + ' </b> </p>' + 'LatLng: ' + latLng;
return content;
}
function displayRoute(origin, destination, service, display) {
service.route({
origin: origin,
destination: destination,
//waypoints: [{location: new google.maps.LatLng(30.439025, -97.685654)}, {location: new google.maps.LatLng(30.434882, -97.677015)} , {location:new google.maps.LatLng(30.429495, -97.675274)}],
waypoints: wyPts,
optimizeWaypoints: true,
travelMode: google.maps.DirectionsTravelMode.DRIVING
}, function(response, status) {
if (status === google.maps.DirectionsStatus.OK) {
display.setDirections(response);
} else {
alert('Could not display directions due to: ' + status);
}
});
}
function initMap() {
//////////source destination and middle waypoints
var src = new google.maps.LatLng(30.444719, -97.686202); // //school
//addWayPoints(src);
var midPt1 = new google.maps.LatLng(30.439025, -97.685654); //
addWayPoints(midPt1);
var midPt2 = new google.maps.LatLng(30.434882, -97.677015); //
addWayPoints(midPt2);
var midPt3 = new google.maps.LatLng(30.429495, -97.675274); //
addWayPoints(midPt3);
/* for (var i = 0; i < wyPts.length; i++) {
alert("pts are : " + wyPts[i].location);
} */
var destination = new google.maps.LatLng(30.401820, -97.669545); //
///////////draw the map
map = new google.maps.Map(document.getElementById('map'), {
center: src,
mapTypeControlOptions: {
style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR,
position: google.maps.ControlPosition.TOP_RIGHT,
mapTypeIds: [google.maps.MapTypeId.ROADMAP,
google.maps.MapTypeId.TERRAIN,
google.maps.MapTypeId.HYBRID
]
},
zoomControl: true,
zoomControlOptions: {
position: google.maps.ControlPosition.RIGHT_CENTER
},
zoom: 14
});
//draw infowindow at src and destination
var coordInfoWindowSrc = new google.maps.InfoWindow({
content: createInfoWindowContent(src, "Source"),
maxWidth: 180
});
coordInfoWindowSrc.setPosition(src);
coordInfoWindowSrc.open(map);
var coordInfoWindowDest = new google.maps.InfoWindow({
content: createInfoWindowContent(destination, "Destination"),
maxWidth: 180
});
coordInfoWindowDest.setPosition(destination);
coordInfoWindowDest.open(map);
//display route
var polylineProps = {
strokeColor: '#009933',
strokeOpacity: 1.0,
strokeWeight: 3
};
var directionsDisplay = new google.maps.DirectionsRenderer({
draggable: false, //do not make the route draggable
map: map,
suppressMarkers: true,
polylineOptions: polylineProps
});
var directionsService = new google.maps.DirectionsService();
displayRoute(src, destination, directionsService, directionsDisplay);
//add listener to map
directionsDisplay.addListener(
'change',
function() {
displayRoute(src, destination, directionsService,
directionsDisplay);
});
}
google.maps.event.addDomListener(window, 'load', initMap);
html,
body,
#map {
height: 100%;
width: 100%;
margin: 0px;
padding: 0px
}
<script src="https://maps.googleapis.com/maps/api/js"></script>
<div id="map"></div>
相关问题:Google Map API V3. Unable to create custom polyline for TRANSIT directions
关于javascript - 谷歌地图航点不显示完整路径,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/33023422/