相关疑难解决方法(0)

我试图在谷歌地图上显示多个路线,但它只显示一个.你能取悦我做错了吗？

<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
    }); …