要獲得從A到BI的最短路線,建議使用「alternatives = true」參數進行不同的查詢,在avoid = toll,avoid = highways之間使用「avoid」參數進行播放,然後將所有結果與選擇最短的路線。
directionsService = new google.maps.DirectionsService;
//avoiding tolls
directionsService.route({
origin: {
'placeId': originId
},
destination: {
'placeId': destinationId
},
provideRouteAlternatives: true,
avoidTolls: true,
travelMode: google.maps.TravelMode.DRIVING
}, function(response, status) {
if (status === google.maps.DirectionsStatus.OK) {
routesResponses.push(response);
}
else {
window.alert('Directions request failed due to ' + status);
}
});
//avoiding highways
directionsService.route({
origin: {
'placeId': originId
},
destination: {
'placeId': destinationId
},
provideRouteAlternatives: true,
avoidHighways: true,
travelMode: google.maps.TravelMode.DRIVING
}, function(response, status) {
if (status === google.maps.DirectionsStatus.OK) {
routesResponses.push(response);
}
else {
window.alert('Directions request failed due to ' + status);
}
//Results analysis and drawing of routes
var fastest = Number.MAX_VALUE,
shortest = Number.MAX_VALUE;
routesResponses.forEach(function(res) {
res.routes.forEach(function(rou, index) {
console.log("distance of route " +index+": " , rou.legs[0].distance.value);
console.log("duration of route " +index+": " , rou.legs[0].duration.value);
if (rou.legs[0].distance.value < shortest) shortest = rou.legs[0].distance.value ;
if (rou.legs[0].duration.value < fastest) fastest = rou.legs[0].duration.value ;
})
})
console.log("shortest: ", shortest);
console.log("fastest: ", fastest);
//painting the routes in green blue and red
routesResponses.forEach(function(res) {
res.routes.forEach(function(rou, index) {
new google.maps.DirectionsRenderer({
map:map,
directions:res,
routeIndex:index,
polylineOptions:{
strokeColor: rou.legs[0].duration.value == fastest? "red":rou.legs[0].distance.value == shortest?"darkgreen":"blue",
strokeOpacity: rou.legs[0].duration.value == fastest? 0.8:rou.legs[0].distance.value == shortest? 0.9: 0.5,
strokeWeight: rou.legs[0].duration.value == fastest? 9:rou.legs[0].distance.value == shortest? 8: 3,
}
})
})
})
});
}
}
您有沒有找到解決方案 – Tarlen
Soldeplata Saketos的答案似乎是目前最好的解決方案。這不是我所期望的,但我認爲這是我們目前可以得到的最接近的。 – user2649424