Remove straight line in google map path using javascript

Question

Requerment is to Draw Path between start location and end location with multiple way-points on google map . The path is nice but the problem is that there are several strai

Answer 1

Don't push the src point on to the path out of order (the directions service is asynchronous). Remove this line:

path.push(src);

And change the code to render each directions result as a separate polyline.

Related question:

• Inconsistent behaviour drawing a route between two points in Google Maps v3

updated fiddle

code snippet:

var markers = [{
    "title": 'A',
    "lat": '26.3489',
    "lng": ' 92.6845',
    "description": 'A'
  }, {
    "title": 'B',
    "lat": '26.3546',
    "lng": '92.6902',
    "description": 'B'
  }, {
    "title": 'D',
    "lat": '26.3508',
    "lng": '92.7102',
    "description": 'D'
  }

  , {
    "title": 'E',
    "lat": '26.4285',
    "lng": '92.8497',
    "description": 'E'
  }, {
    "title": 'E',
    "lat": '26.5486',
    "lng": '92.9008',
    "description": 'E'
  }, {
    "title": 'E',
    "lat": ' 26.6567',
    "lng": '92.7717',
    "description": 'E'
  }

  , {
    "title": 'C',
    "lat": '26.807',
    "lng": '92.895',
    "description": 'C'
  },

];
window.onload = function() {
  var mapOptions = {
    center: new google.maps.LatLng(markers[0].lat, markers[0].lng),
    zoom: 10,
    mapTypeId: google.maps.MapTypeId.ROADMAP
  };
  var map = new google.maps.Map(document.getElementById("dvMap"), mapOptions);
  var infoWindow = new google.maps.InfoWindow();
  var lat_lng = new Array();
  var latlngbounds = new google.maps.LatLngBounds();
  for (i = 0; i < markers.length; i++) {
    var data = markers[i]
    var myLatlng = new google.maps.LatLng(data.lat, data.lng);
    lat_lng.push(myLatlng);
    var marker = new google.maps.Marker({
      position: myLatlng,
      map: map,
      title: data.title
    });
    latlngbounds.extend(marker.position);
    (function(marker, data) {
      google.maps.event.addListener(marker, "click", function(e) {
        infoWindow.setContent(data.description);
        infoWindow.open(map, marker);
      });
    })(marker, data);
  }
  map.setCenter(latlngbounds.getCenter());
  map.fitBounds(latlngbounds);

  //***********ROUTING****************//

  //Initialize the Direction Service
  var service = new google.maps.DirectionsService();

  //Loop and Draw Path Route between the Points on MAP
  for (var i = 0; i < lat_lng.length; i++) {
    if ((i + 1) < lat_lng.length) {
      var src = lat_lng[i];
      var des = lat_lng[i + 1];
      service.route({
        origin: src,
        destination: des,
        travelMode: google.maps.DirectionsTravelMode.DRIVING
      }, function(result, status) {
        if (status == google.maps.DirectionsStatus.OK) {
          //Initialize the Path Array
          var path = new google.maps.MVCArray();

          //Set the Path Stroke Color
          var poly = new google.maps.Polyline({
            map: map,
            strokeColor: '#4986E7'
          });
          poly.setPath(path);

          for (var i = 0, len = result.routes[0].overview_path.length; i < len; i++) {
            path.push(result.routes[0].overview_path[i]);
          }
        }
      });
    }
  }
}

html,
body {
  height: 100%;
  width: 100%;
}

#dvMap{
  height: 90%;
  width: 100%;
}

<div id="dvMap"></div>

<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script>