How to calculate total distance and time (getDistanceMatrix)

Question

I need to get total distance and travel time with service.getDistanceMatrix({, sum A + B + C + D = total distance.

The way that i try, only i get the first

Answer 1

The DirectionsService returns all the information you need to calculate the total time and distance, you don't need to use the DistanceMatrix.

Per this related question: Google Maps API: Total distance with waypoints

function computeTotalDistance(result) {
  var totalDist = 0;
  var totalTime = 0;
  var myroute = result.routes[0];
  for (i = 0; i < myroute.legs.length; i++) {
    totalDist += myroute.legs[i].distance.value;
    totalTime += myroute.legs[i].duration.value;
  }
  totalDist = totalDist / 1000.
  document.getElementById("dvDistance").innerHTML = "total distance is: " + totalDist + " km
total time is: " + (totalTime / 60).toFixed(2) + " minutes";
}

proof of concept fiddle

code snippet:

var source, destination;
var directionsService = new google.maps.DirectionsService();
var stop;
var markers = [];
var waypts = [];

stop = new google.maps.LatLng(6.347033, -75.559017)
waypts.push({
  location: stop,
  stopover: true
});
stop = new google.maps.LatLng(6.348764, -75.562970)
waypts.push({
  location: stop,
  stopover: true
});
var directionsDisplay = new google.maps.DirectionsRenderer({
  suppressMarkers: false,
});

window.onload = function() {
  var mapOptions = {
    zoom: 15,
    //center: new google.maps.LatLng(6.3490548, -75.55802080000001),
    mapTypeId: google.maps.MapTypeId.ROADMAP,
  }
  var map = new google.maps.Map(document.getElementById('dvMap'), mapOptions);
  directionsDisplay.setMap(map);
  directionsDisplay.setPanel(document.getElementById('dvPanel'));

  source = new google.maps.LatLng(6.3490548, -75.55802080000001);
  destination = new google.maps.LatLng(6.334624, -75.556157);

  var request = {
    origin: source,
    destination: destination,
    waypoints: waypts,
    optimizeWaypoints: true,
    travelMode: google.maps.TravelMode.DRIVING
  };
  directionsService.route(request, function(response, status) {
    if (status == google.maps.DirectionsStatus.OK) {
      directionsDisplay.setDirections(response);
      computeTotalDistance(response);
    }
  });
}

function computeTotalDistance(result) {
  var totalDist = 0;
  var totalTime = 0;
  var myroute = result.routes[0];
  for (i = 0; i < myroute.legs.length; i++) {
    totalDist += myroute.legs[i].distance.value;
    totalTime += myroute.legs[i].duration.value;
  }
  totalDist = totalDist / 1000.
  document.getElementById("dvDistance").innerHTML = "total distance is: " + totalDist + " km
total time is: " + (totalTime / 60).toFixed(2) + " minutes";
}

html,
body {
  height: 100%;
  width: 100%;
  margin: 0px;
  padding: 0px;
}

#dvMap {
  height: 100%;
  width: 50%;
  margin: 0px;
  padding: 0px;
}

#dvPanel {
  height: 100%;
  width: 50%;
  margin: 0px;
  padding: 0px;
  float: right;
}