Array to create multiple routes on Google Maps v3

I have a Google Maps project, and I want to do an array to create multiple routes using directions. For example, I click on the map and appear a marker named "A", and when I click the second time, display a marker named "B". Ok, this is working.

But when I click the third time I want to display a new "A" point and the fourth time a new "B", don't need to erase the other route. I want only to display multiple routes, I know that I need to create an Array, but i don't know where i put the array, and etc. I will post here my code, if someone can create an example for me will be so helpful.

This is my example

And this was my resumed code without the multiple routes:

var wayA ;
var wayB;
var doRoute = true;

 if (doRoute == true){
      doRoutes();   
  }    
function doRoutes()
{   
    google.maps.event.addListener(map, "click", function(event) {

        if (!wayA) {
        wayA = new google.maps.Marker({

          position: event.latLng,
          map: map            
        });
        }else if (wayA){
        wayB = new google.maps.Marker({

          position: event.latLng,
          map: map

        });         

        ren = new google.maps.DirectionsRenderer( {'draggable':true} );
    ren.setMap(map);
    ren.setPanel(document.getElementById("directionsPanel"));
    ser = new google.maps.DirectionsService();

ser.route({ 'origin': wayA.getPosition(), 'destination':  wayB.getPosition(), 'travelMode': google.maps.DirectionsTravelMode.DRIVING},function(res,sts) {
        if(sts=='OK')ren.setDirections(res);    
        })          
        }
 });
}     
}

This is the resolution:

var map, ren, ser;
var data = {};
var data2 = {};
var marker;
var infowindow;
 var doMark = true ;
var directionsDisplay;
var wayA = [];
var wayB = [];
var directionResult = [];

//Initialize

function goma()
{

    var mapDiv = document.getElementById('mappy');

    var mapOptions = {
    zoom: 12, 

    center: new google.maps.LatLng(-23.563594, -46.654239),
    mapTypeId : google.maps.MapTypeId.ROADMAP
    }

    map = new google.maps.Map( mapDiv, mapOptions );


  map.controls[google.maps.ControlPosition.TOP_RIGHT].push(control);

  google.maps.event.addDomListener(control, 'click', function() {
    doMark = false;
     markNow();

  });

 google.maps.event.addListener(map, "click", function(event) {
        if (wayA.length == wayB.length) {
        wayA.push(new google.maps.Marker({
      draggable: true,      
          position: event.latLng,
          map: map

        }));
        } else {
        wayB.push(new google.maps.Marker({
      draggable: true,  
          position: event.latLng,
          map: map

        }));


    ren = new google.maps.DirectionsRenderer( {'draggable':true} );
    ren.setMap(map);
    ren.setPanel(document.getElementById("directionsPanel"));
    ser = new google.maps.DirectionsService();

    ser.route({ 'origin': wayA[wayA.length-1].getPosition(), 'destination':  wayB[wayB.length-1].getPosition(), 'travelMode': google.maps.DirectionsTravelMode.DRIVING},function(res,sts) {
        if(sts=='OK') {
                    directionResult.push(res);
                    ren.setDirections(res); 
                } else {
                    directionResult.push(null);
                }
    })      

        }
 });
}  

Answers:

Answer

Based off my previous example from your earlier question

This is what you say you want: working example with multiple routes

code snippet:

var map, ren, ser;
var data = {};
var data2 = {};
var marker;
var infowindow;
var doMark = true;
var directionsDisplay;

var wayA = [];
var wayB = [];
var directionResult = [];

//Função de Inicio

function goma() {

  var mapDiv = document.getElementById('mappy');

  var mapOptions = {
      zoom: 12,

      center: new google.maps.LatLng(-23.563594, -46.654239),
      mapTypeId: google.maps.MapTypeId.ROADMAP
    }
    //Cria o mapa do google, coloca as definições do mapa, como tipo de visualização, pode ser ROADMAP, SATELLITE, HYBRID, TERRAIN
  map = new google.maps.Map(mapDiv, mapOptions);


  var control = document.createElement('DIV');
  control.style.padding = '1px';
  control.style.border = '1px solid #000';
  control.style.backgroundColor = 'white';
  control.style.cursor = 'pointer';
  control.innerHTML = '<img src="http://i47.tinypic.com/2dlp2fc.jpg" border="0" alt="Image and video hosting by TinyPic">';
  control.index = 1;
  map.controls[google.maps.ControlPosition.TOP_RIGHT].push(control);

  google.maps.event.addDomListener(control, 'click', function() {
    doMark = false;
    markNow();
  });

  google.maps.event.addListener(map, "click", function(event) {
    if (wayA.length == wayB.length) {
      wayA.push(new google.maps.Marker({
        draggable: true,
        position: event.latLng,
        map: map

      }));
    } else {
      wayB.push(new google.maps.Marker({
        draggable: true,
        position: event.latLng,
        map: map

      }));

      //Renderiza a rota, o draggable é diz se o waypoint é arrastavel ou não
      ren = new google.maps.DirectionsRenderer({
        'draggable': true
      });
      ren.setMap(map);
      ren.setPanel(document.getElementById("directionsPanel"));
      ser = new google.maps.DirectionsService();

      //Cria a rota, o DirectionTravelMode pode ser: DRIVING, WALKING, BICYCLING ou TRANSIT
      ser.route({
        'origin': wayA[wayA.length - 1].getPosition(),
        'destination': wayB[wayB.length - 1].getPosition(),
        'travelMode': google.maps.DirectionsTravelMode.DRIVING
      }, function(res, sts) {
        if (sts == 'OK') {
          directionResult.push(res);
          ren.setDirections(res);
        } else {
          directionResult.push(null);
        }
      })

    }
  });
}

var html = "<table>" +
  "<tr><td>Nome:</td> <td><input type='text' id='name'/> </td> </tr>" +
  "<tr><td>Endereco:</td> <td><input type='text' id='address'/></td> </tr>" +
  "<tr><td>Tipo:</td> <td><select id='type'>" +
  "<option value='oficina' SELECTED>oficina</option>" +
  "<option value='restaurante'>restaurante</option>" +
  "</select> </td></tr>" +
  "<tr><td></td><td><input type='button' value='Salvar' onclick='saveData()'/></td></tr>";
infowindow = new google.maps.InfoWindow({
  content: html
});


//Geocoding (pesquisar)
function marcar() {
  var endereco = document.getElementById("endereco").value;
  //alert(endereco)
  geocoder = new google.maps.Geocoder();
  geocoder.geocode({
    'address': endereco
  }, function(results, status) {
    if (status = google.maps.GeocoderStatus.OK) {
      latlng = results[0].geometry.location;
      markerInicio = new google.maps.Marker({
        position: latlng,
        map: map
      });
      map.setCenter(latlng);
    }
  });
}

function markNow() {
  if (doMark == false) {

    google.maps.event.addListener(map, "click", function(event) {
      marker = new google.maps.Marker({

        position: event.latLng,
        map: map

      });
      google.maps.event.addListener(marker, "click", function() {
        infowindow.open(map, marker);
      });
    });
  }
}

google.maps.event.addDomListener(window, 'load', goma);
html,
body {
  height: 100%;
  width: 100%;
}
<script src="http://maps.google.com/maps/api/js"></script>
<div id="mappy" style="float:left;width:70%; height:100%"></div>
<div id="directionsPanel" style="float:right;width:30%;height 100%"></div>
<div>
  <label>Endereco</label>
  <input type="text" id="endereco">
</div>

<input type="button" value="Marcar" id="marcar" onClick="marcar()">


</div>

Answer

Multiple routes on a single map with waypoints

    <script>
     var map;

      var directionsService;
      var stepDisplay;

      var position;
      var marker = [];
      var polyline = [];
      var poly2 = [];
      var poly = null;
      var startLocation = [];
      var endLocation = [];
      var timerHandle = [];   

      var stops_data = [[ {"Geometry":{"Latitude":23.05242,"Longitude":72.53375}},

                          {"Geometry":{"Latitude":23.03007,"Longitude":72.59664}}

                        ] ,[ {"Geometry":{"Latitude":23.00959,"Longitude":72.56189}},
                             {"Geometry":{"Latitude":23.05754,"Longitude":72.55302}}
                           ]];

      var a,z,b;        
      var add;
      var map; 

      var speed = 0.000005, wait = 1;
      var infowindow = null;

      var myPano;   
      var panoClient;
      var nextPanoId;         

      //    var locations=new Array(new google.maps.LatLng(34.04429454929703, -118.22793351693724),new google.maps.LatLng(33.688522885631706, -116.15151750131224));

          var directionsDisplay = [];

          directionsDisplay[0] = new window.google.maps.DirectionsRenderer({
              suppressMarkers: false,
              suppressInfoWindows: true
            });


          directionsDisplay[1] = new window.google.maps.DirectionsRenderer({
              suppressMarkers: false,
              suppressInfoWindows: true
            });

          var map;
          var mapOptions = { center: new google.maps.LatLng(42.5584308, -70.8597732), zoom: 3,
            mapTypeId: google.maps.MapTypeId.ROADMAP };

          function initialize() 
          {
            map = new google.maps.Map(document.getElementById("map_canvas"), mapOptions);

            directionsService = new google.maps.DirectionsService();        

         //   Setroute(locations[0],locations[1],directionsDisplay[0]);

           // Setroute(locations2[0],locations2[1],directionsDisplay[1]);


            Tour_startUp(stops_data[0]);

            window.tour.loadMap(map, directionsDisplay[0]);




            if (stops_data[0].length > 1)
                window.tour.calcRoute(stops_data[0],directionsService, directionsDisplay[0]);

            Tour_startUp(stops_data[1]);
            window.tour.loadMap(map, directionsDisplay[1]);
            window.tour.calcRoute(stops_data[1],directionsService, directionsDisplay[1]);

          }

    function Tour_startUp(stops) {

        if (!window.tour) window.tour = {
            updateStops: function (newStops) {
                stops = newStops;
            },

            loadMap: function (map, dirdis) {
                var myOptions = {
                    zoom: 15,
                    center: new window.google.maps.LatLng(51.507937, -0.076188), // default to London
                    mapTypeId: window.google.maps.MapTypeId.ROADMAP
                };
                map.setOptions(myOptions);
                dirdis.setMap(map);
            },
            calcRoute: function (stops_new,directionsService, dirdis) {
                var batches = [];
                var itemsPerBatch = 10; // google API max = 10 - 1 start, 1 stop, and 8 waypoints
                var itemsCounter = 0;
                var wayptsExist = stops_new.length > 0;
                var time= [];
                while (wayptsExist) {
                    var subBatch = [];
                    var subitemsCounter = 0;

                   // alert('second'+stops_new.length);        
            //alert(stops_new[0].Geometry.Latitude +' ===== ' +stops_new[0].Geometry.Longitude);        

                    for (var j = itemsCounter; j < stops_new.length; j++) {
                        subitemsCounter++;

                    //alert(stops[j].Geometry.Time);
                        subBatch.push({
                            location: new window.google.maps.LatLng(stops_new[j].Geometry.Latitude, stops_new[j].Geometry.Longitude),
                            stopover: true                               
                        });

                       //time.push(stops[j].Geometry.Time);

                        if (subitemsCounter == itemsPerBatch)
                            break;
                    }

                    itemsCounter += subitemsCounter;
                    batches.push(subBatch);
                    wayptsExist = itemsCounter < stops_new.length;
                    // If it runs again there are still points. Minus 1 before continuing to
                    // start up with end of previous tour leg
                    itemsCounter--;
                }

                // now we should have a 2 dimensional array with a list of a list of waypoints
                var combinedResults;
                var unsortedResults = [{}]; // to hold the counter and the results themselves as they come back, to later sort
                var directionsResultsReturned = 0;

                for (var k = 0; k < batches.length; k++) {
                    var lastIndex = batches[k].length - 1;
                    var start = batches[k][0].location;
                    var end = batches[k][lastIndex].location;

                    // trim first and last entry from array
                    var waypts = [];
                    waypts = batches[k];
                    waypts.splice(0, 1);
                    waypts.splice(waypts.length - 1, 1);

                    var request = 
                        {
                        origin: start,
                        destination: end,
                        waypoints: waypts,
                        travelMode: window.google.maps.TravelMode.WALKING
                    };

                  //  alert('start'+start);

                 //   alert('end'+end);

                    (function (kk) {
                        directionsService.route(request, function (result, status) {
                            if (status == window.google.maps.DirectionsStatus.OK) {

                                 polyline[0] = new google.maps.Polyline({
                                     path: [],
                                     strokeColor: '#FFFF00',
                                     strokeWeight: 3
                                     });


                                 poly2[0] = new google.maps.Polyline({
                                     path: [],
                                     strokeColor: '#FFFF00',
                                     strokeWeight: 3
                                     });     


                                var unsortedResult = { order: kk, result: result };
                                unsortedResults.push(unsortedResult);

                                directionsResultsReturned++;

                                if (directionsResultsReturned == batches.length) // we've received all the results. put to map
                                {
                                    // sort the returned values into their correct order
                                    unsortedResults.sort(function (a, b) { return parseFloat(a.order) - parseFloat(b.order); });
                                    var count = 0;
                                    for (var key in unsortedResults) {
                                        if (unsortedResults[key].result != null) {
                                            if (unsortedResults.hasOwnProperty(key)) {
                                                if (count == 0) // first results. new up the combinedResults object
                                                    combinedResults = unsortedResults[key].result;
                                                else {
                                                    // only building up legs, overview_path, and bounds in my consolidated object. This is not a complete
                                                    // directionResults object, but enough to draw a path on the map, which is all I need
                                                    combinedResults.routes[0].legs = combinedResults.routes[0].legs.concat(unsortedResults[key].result.routes[0].legs);
                                                    combinedResults.routes[0].overview_path = combinedResults.routes[0].overview_path.concat(unsortedResults[key].result.routes[0].overview_path);

                                                    combinedResults.routes[0].bounds = combinedResults.routes[0].bounds.extend(unsortedResults[key].result.routes[0].bounds.getNorthEast());
                                                    combinedResults.routes[0].bounds = combinedResults.routes[0].bounds.extend(unsortedResults[key].result.routes[0].bounds.getSouthWest());
                                                }
                                                count++;
                                            }
                                        }
                                    }
                                    dirdis.setDirections(combinedResults);


                                    var legs = combinedResults.routes[0].legs;

                                    var path = combinedResults.routes[0].overview_path;

                                    //alert(path.length);

                                 //  alert(legs.length);

                                  //setRoutes(legs[0].start_location,legs[legs.length-1].end_location);



                                    for (var i=0; i < legs.length;i++)
                                        {
                                              var markerletter = "A".charCodeAt(0);
                                              markerletter += i;
                                      markerletter = String.fromCharCode(markerletter);

                                      if (i == 0) { 

                                        //marker[0] = createMarker2(legs[i].start_location,"start",legs[i].start_address,"green");
                                      }

                                      var steps = legs[i].steps;

                                    //  alert('arrival time : '+legs[i].arrival_time.text);

                                //  var duration = steps.duration_in_traffic;

                                  // alert(duration.text);

                                      for (j=0;j<steps.length;j++) 
                                      {

                                          var nextSegment = steps[j].path;

                                          for (k=0;k<nextSegment.length;k++) 
                                              {
                                              polyline[0].getPath().push(nextSegment[k]);
                                              //bounds.extend(nextSegment[k]);
                                                 }
                                      }



                                    //  createMarker(directionsDisplay.getMap(),legs[i].start_location,"marker"+i,"some text for marker "+i+"<br>"+legs[i].start_address,markerletter);   
                                    }
                                        // Marker for start point 
                                    createMarker(dirdis.getMap(),legs[0].start_location,"marker"+0,"Start Point<br>"+legs[0].start_address,'A');


                                    var i=legs.length;
                                    var markerletter = "A".charCodeAt(0);
                                      markerletter += i;
                                    markerletter = String.fromCharCode(markerletter);

                                    // marker for End Point 
                                    createMarker(dirdis.getMap(),legs[legs.length-1].end_location,"marker"+i,"End Point <br>"+legs[legs.length-1].end_address,'B');

                                    polyline[0].setMap(map);

                                    //startAnimation(0);  
                                }
                            }
                        });
                    })(k);
                }
            }
        };
    }


    var icons = new Array();
    icons["red"] = new google.maps.MarkerImage("mapIcons/marker_red.png",
          // This marker is 20 pixels wide by 34 pixels tall.
          new google.maps.Size(20, 34),
          // The origin for this image is 0,0.
          new google.maps.Point(0,0),
          // The anchor for this image is at 9,34.
          new google.maps.Point(9, 34));



    function getMarkerImage(iconStr) {

    //alert(iconStr);

       if ((typeof(iconStr)=="undefined") || (iconStr==null)) { 
          iconStr = "red"; 
       }

    if(iconStr == 'A')
    {
       // for start point 


       if (!icons[iconStr]) {
          icons[iconStr] = new google.maps.MarkerImage("http://www.google.com/mapfiles/dd-start.png",
          // This marker is 20 pixels wide by 34 pixels tall.
          new google.maps.Size(20, 34),
          // The origin for this image is 0,0.
          new google.maps.Point(0,0),
          // The anchor for this image is at 6,20.
          new google.maps.Point(9, 34));
       } 

    }
    if (iconStr == 'B')
    {

        // for end point


        if (!icons[iconStr]) {
              icons[iconStr] = new google.maps.MarkerImage("http://www.google.com/mapfiles/dd-end.png",
              // This marker is 20 pixels wide by 34 pixels tall.
              new google.maps.Size(20, 34),
              // The origin for this image is 0,0.
              new google.maps.Point(0,0),
              // The anchor for this image is at 6,20.
              new google.maps.Point(9, 34));
           } 


        }
    return icons[iconStr];
    }
      // Marker sizes are expressed as a Size of X,Y
      // where the origin of the image (0,0) is located
      // in the top left of the image.

      // Origins, anchor positions and coordinates of the marker
      // increase in the X direction to the right and in
      // the Y direction down.

      var iconImage = new google.maps.MarkerImage('mapIcons/marker_red.png',
          // This marker is 20 pixels wide by 34 pixels tall.
          new google.maps.Size(20, 34),
          // The origin for this image is 0,0.
          new google.maps.Point(0,0),
          // The anchor for this image is at 9,34.
          new google.maps.Point(9, 34));



      var iconShadow = new google.maps.MarkerImage('http://www.google.com/mapfiles/shadow50.png',
          // The shadow image is larger in the horizontal dimension
          // while the position and offset are the same as for the main image.
          new google.maps.Size(37, 34),
          new google.maps.Point(0,0),
          new google.maps.Point(9, 34));
          // Shapes define the clickable region of the icon.
          // The type defines an HTML &lt;area&gt; element 'poly' which
          // traces out a polygon as a series of X,Y points. The final
          // coordinate closes the poly by connecting to the first
          // coordinate.
      var iconShape = {
          coord: [9,0,6,1,4,2,2,4,0,8,0,12,1,14,2,16,5,19,7,23,8,26,9,30,9,34,11,34,11,30,12,26,13,24,14,21,16,18,18,16,20,12,20,8,18,4,16,2,15,1,13,0],
          type: 'poly'
      };


    function createMarker(map, latlng, label, html, color) {

    //alert(color);
    //  alert("createMarker("+latlng+","+label+","+html+","+color+")");


        var contentString = '<b>'+label+'</b><br>'+html;

        var marker = new google.maps.Marker({
            position: latlng,
            map: map,
            shadow: iconShadow,
            icon: getMarkerImage(color),
            shape: iconShape,
            title: label,
            zIndex: Math.round(latlng.lat()*-100000)<<5
            });
            marker.myname = label;

        google.maps.event.addListener(marker, 'click', function() {
            infowindow.setContent(contentString); 
            infowindow.open(map,marker);
            });


        return marker;
    }

    function createMarkerForStops(map, latlng, label, html, color) {
        // alert("createMarker("+latlng+","+label+","+html+","+color+")");


       var contentString = '<b>'+label+'</b><br>'+html;

            var marker = new google.maps.Marker({
                position: latlng,
                map: map,
                title: label,
                //icon:'http://google-maps-icons.googlecode.com/files/stop.png',
                icon:'icon/stop.png',
                zIndex: Math.round(latlng.lat()*-100000)<<5
                });
                marker.myname = label;


            google.maps.event.addListener(marker, 'click', function() {
                infowindow.setContent(contentString); 
                infowindow.open(map,marker);
                });
            return marker;
        }


          google.maps.event.addDomListener(window, 'load', initialize);

    </script>        
    <div id="map_canvas"></div>

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