IssueTracker

Is that DirectionsService support no of waypoints to be fixed. lets say first 3 waypoints of the array must be fixed in order.
That means when we set optimizeWaypoints: true, first 3 waypoints cannot be change. they must kept their order and last 7 waypoints must change the order to optimize. Can we do it? or it is not working in DirectionsService?

I tried the following code to fixed some waypoints. but it not working.


var directionsService = new google.maps.DirectionsService();
var directionsRenderer = new google.maps.DirectionsRenderer();

function calculateRoute() {
  directionsService.route(
    {
      origin: "Colombo, Sri Lanka", // Locked
      destination: "Kandy, Sri Lanka", // Locked
      travelMode: google.maps.TravelMode.DRIVING,
      drivingOptions: {
        departureTime: new Date(), // Real-time traffic
        trafficModel: "best_guess",
      },
      waypoints: [
        // 🚀 LOCKED waypoints (first 3, not optimized)
        { location: "Gampaha, Sri Lanka", stopover: true },
        { location: "Negombo, Sri Lanka", stopover: true },
        { location: "Minuwangoda, Sri Lanka", stopover: true },

        // 🛠 Optimized waypoints (remaining 7)
        { location: "Kurunegala, Sri Lanka", stopover: true },
        { location: "Dambulla, Sri Lanka", stopover: true },
        { location: "Matale, Sri Lanka", stopover: true },
        { location: "Mawanella, Sri Lanka", stopover: true },
        { location: "Pilimathalawa, Sri Lanka", stopover: true },
        { location: "Peradeniya, Sri Lanka", stopover: true },
        { location: "Kadugannawa, Sri Lanka", stopover: true },
      ],
      optimizeWaypoints: true, // Optimizes the last 7 waypoints only
    },
    function (response, status) {
      if (status === "OK") {
        directionsRenderer.setDirections(response);
       
        // Check the waypoint order in the response
        var optimizedOrder = response.routes[0].waypoint_order;
        console.log("Optimized waypoint order:", optimizedOrder);

        // Check if the first 3 waypoints remain unchanged
        console.log("First 3 waypoints should not be optimized:");
        console.log("1. Gampaha -> Expected Position: 0");
        console.log("2. Negombo -> Expected Position: 1");
        console.log("3. Minuwangoda -> Expected Position: 2");

      } else {
        console.error("Directions request failed due to " + status);
      }
    }
  );
}