我想使用只有原点和航点的Google Direction API来获取没有目标点的最短路径。这可能吗?
答案 0 :(得分:0)
我担心你不能,目的地是所有Directions API请求中的必需参数,但你可以在没有路标的情况下进行请求。
如果你想要最短的路径,你只需要遍历响应即可获得它。
以下是如何执行此操作的示例:https://jsbin.com/nihihis/1/edit?html,js,output
在此我迭代响应,并将最短路径显示为绿色,最长路径显示为红色。
var request = {
origin: start,
destination: end,
travelMode: "DRIVING",
provideRouteAlternatives: true
};
directionsService.route(request, function(response, status) {
console.log('init');
console.log('status ' + status);
if (status == 'OK') {
console.log('results', response.routes);
//
var routesSteps = [];
var routes = response.routes;
var colors = ['red', 'black', 'green'];
for (var i = 0; i < routes.length; i++) {
if(i==0) {
new google.maps.DirectionsRenderer({
map: map,
directions: response,
routeIndex: i,
polylineOptions: {
strokeColor: colors[2],
strokeWeight: 4,
strokeOpacity: .3
}
});
} else if(i== routes.length - 1) {
new google.maps.DirectionsRenderer({
map: map,
directions: response,
routeIndex: i,
polylineOptions: {
strokeColor: colors[0],
strokeWeight: 4,
strokeOpacity: .3
}
});
} else {
new google.maps.DirectionsRenderer({
map: map,
directions: response,
routeIndex: i,
polylineOptions: {
strokeColor: colors[1],
strokeWeight: 4,
strokeOpacity: .3
}
});
}