Mehrere Routen auf Google-Karte anzeigen

Question

Ich versuche, mehrere Routen auf Google-Karte anzuzeigen, aber es zeigt nur eine. Kannst du bitte was ich falsch mache?

<div class="searchmap" style="float:left;margin-left:1%" id="map"></div>

var map   = null; 
var markerPoints = []; 

var directionDisplay; 
var directionsService = new google.maps.DirectionsService(); 
function initialize() 
{ 
    directionsDisplay = new google.maps.DirectionsRenderer(); 
    map = new google.maps.Map(document.getElementById("map"), {scrollwheel:false, mapTypeId: google.maps.MapTypeId.ROADMAP, mapTypeControl: false, streetViewControl: false, center:new google.maps.LatLng(19.0759837, 72.87765590000004), zoom:13}); 


    directionsDisplay.setMap(map); 
} 


function calcRoute(flat, flng, tlat, tlng) 
{ 
    var start = new google.maps.LatLng(flat, flng); 
    var end = new google.maps.LatLng(tlat, tlng);  

    var request = { 
     origin:start, 
     destination:end, 
     travelMode: google.maps.DirectionsTravelMode.DRIVING 
    }; 

    directionsDisplay = new google.maps.DirectionsRenderer({ 
     suppressMarkers: false, 
     suppressInfoWindows: true 
    }); 
    directionsDisplay.setMap(map); 

    directionsService.route(request, function(result, status) { 
     console.log(result); 

     if (status == google.maps.DirectionsStatus.OK) { 
      directionsDisplay.setDirections(result); 
     } 
    }); 
} 

calcRoute("19.210430", "72.843422", "19.109858", "72.878433"); 
calcRoute("19.228977", "72.856812", "19.117302", "72.884041"); 

Können Sie bitte lassen Sie mich wissen, was ich falsch mache?

Answer 1

Display multiple routes on google map with waypoints and direction arrow 
============== 

Klicken Sie auf here!

![In image u can see 2 routes with direction arrow][1] 

<style> 
    html, body, #map_canvas { margin: 0; padding: 0; height: 100% } 
    </style> 


    <script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script> 

    <script> 




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


     infowindow = new google.maps.InfoWindow(); 


     var myPano; 
     var panoClient; 
     var nextPanoId; 








      var directionsDisplay = []; 

      directionsDisplay[0] = new window.google.maps.DirectionsRenderer({ 
       suppressMarkers: true 

      }); 


      directionsDisplay[1] = new window.google.maps.DirectionsRenderer({ 
       suppressMarkers: 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]); 
      window.tour.fitBounds(stops_data[0],map); 



      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]); 
      window.tour.fitBounds(stops_data[1],map); 





      } 




    function fx(o) 
    { 
     if(o && o.legs) 
     { 
     for(l=0;l<o.legs.length;l++) 
     { 
      var leg=o.legs[l]; 
      for(var s=0;s<leg.steps.length;++s) 
      { 
      var step=leg.steps[s], 
       a=(step.lat_lngs.length)?step.lat_lngs[0]:step.start_point, 
       z=(step.lat_lngs.length)?step.lat_lngs[1]:step.end_point, 
       dir=((Math.atan2(z.lng()-a.lng(),z.lat()-a.lat())*180)/Math.PI)+360, 
       ico=((dir-(dir%3))%120); 
       new google.maps.Marker({ 
        position: a, 
        icon: new google.maps.MarkerImage('http://maps.google.com/mapfiles/dir_'+ico+'.png', 
               new google.maps.Size(24,24), 
               new google.maps.Point(0,0), 
               new google.maps.Point(12,12) 
              ), 
      map: map, 
      title: Math.round((dir>360)?dir-360:dir)+'°' 
      }); 

      } 
     } 
     } 
    } 


    function Tour_startUp(stops) { 

     // alert('first'+stops.length);  

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


      // map: google map object 
      // directionsDisplay: google directionsDisplay object (comes in empty) 
      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); 
      }, 
     fitBounds: function (stops_data,map) { 
       var bounds = new window.google.maps.LatLngBounds(); 

       // extend bounds for each record 
       for(var x in stops_data) { 
        var myLatlng = new window.google.maps.LatLng(stops_data[x].Geometry.Latitude, stops_data[x].Geometry.Longitude); 
        bounds.extend(myLatlng); 
       } 
       map.fitBounds(bounds); 
      }, 
      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) { 


           fx(result.routes[0]); 

           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; 


    // alert('creatMarker'+contentString); 


     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; 
    } 




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

    </script> 

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


    [1]: http://i.stack.imgur.com/yB4Tw.png 

Answer 2

Ihre directionsDisplay Variable ist eine Instanz von google.maps.DirectionsRenderer() und kann nur jeweils einen Satz von Richtungen enthalten. Wenn Sie mehr als eine Route anzeigen möchten, benötigen Sie mehrere .

Answer 3

Hier gehen Sie .. the full explaination, geht Kredit the author

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)'); 

    } 

Sie benötigen eine Instanz von google.maps.DirectionsRenderer(); JEDES MAL erstellen Sie die Strecke ziehen, um es sichtbar zu machen;)

Answer 4

Um Mehrere Routen können wir provideRouteAlternatives = true innerhalb Anfrageobjekt hinzufügen, während route() von DirectionsService Objekt aufrufen. Siehe Directions Requests.

Diese Methode gibt ein Array von Routen zurück, falls verfügbar, mit ihrem Namen unter summary.

Jetzt können wir diese Routen in der Ansicht und beim Klicken auf jede Route, die wir Route Objekt übergeben können und können die Richtung von setDirections() von DirectionsRenderer Objekt. Siehe Displaying the DirectionsResult