Link to home
Create AccountLog in
Avatar of jagku
jagkuFlag for United States of America

asked on

Plotting multiple directions using Google maps API

Hi
So far, I have been able to plot 1 route (ie one driving direction between 2 points).
Does anybody know how I can add more routes.
Basically, I have a table of up to 10 routes. I want to be able to plot each of these routes on the same map but use a different colour to identify each route.

Currently, my code is as follows:
<script type="text/javascript">
  var directionDisplay;
  var directionsService = new google.maps.DirectionsService();
  var map;
 
  function drawMap() {
    directionsDisplay = new google.maps.DirectionsRenderer();
    var start = new google.maps.LatLng(51.47482547819850,-0.37739553384529);
    var myOptions = {
      zoom:7,
      mapTypeId: google.maps.MapTypeId.ROADMAP,
      center: start
    }
    map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
    directionsDisplay.setMap(map);

    var end = new google.maps.LatLng(51.59512428598160,-0.17190814889409 );
    var request = {
        origin:start,
        destination:end,
        travelMode: google.maps.DirectionsTravelMode.DRIVING
    };
    directionsService.route(request, function(response, status) {
      if (status == google.maps.DirectionsStatus.OK) {
        directionsDisplay.setDirections(response);
      }
    });
  }
</script>

<div id="map_canvas"  style="width: 400px; height: 250px"></div>
<script type="text/javascript">
      drawMap();
</script>      



Thanks!
SOLUTION
Avatar of Molnár István
Molnár István
Flag of Romania image

Link to home
membership
Create an account to see this answer
Signing up is free. No credit card required.
Create Account
SOLUTION
Link to home
membership
Create an account to see this answer
Signing up is free. No credit card required.
Create Account
Avatar of jagku

ASKER

Thanks guys. I have been trying to figure out how the v3 API can be used to do this
as google as advised v2 API has been deprecated.
Avatar of jagku

ASKER

Ok, I have figured it out. Here is the sample code:

  function drawMap() {

        var directionDisplay;
        var directionsService = new google.maps.DirectionsService();
        var map;
        
    var start = new google.maps.LatLng(51.47482547819850,-0.37739553384529);
    var myOptions = {
      zoom:7,
      mapTypeId: google.maps.MapTypeId.ROADMAP,
      center: start
    }
    map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);

    function renderDirections(result) {
        var directionsRenderer = new google.maps.DirectionsRenderer();
        directionsRenderer.setMap(map);
        directionsRenderer.setDirections(result);
      }    
   
    function requestDirections(start, end) {
      directionsService.route({
        origin: start,
        destination: end,
        travelMode: google.maps.DirectionsTravelMode.DRIVING
      }, function(result) {
        renderDirections(result);
      });
    }

    requestDirections('(51.47482547819850,-0.37739553384529)', '(51.59512428598160,-0.17190814889409)');
    requestDirections('EC1V 0AH', '(51.47615506206120, -0.37795315370703)');  
   
  }
Avatar of jagku

ASKER

Now, if anyone can help me specify a colour to each route that would be great.
ASKER CERTIFIED SOLUTION
Link to home
membership
Create an account to see this answer
Signing up is free. No credit card required.
Create Account
Avatar of Codebot
Codebot

I was about to mention this
good work
Avatar of jagku

ASKER

Managed to resolve this issue myself. Please see the above comments.