从Google地图指南API获取实际路线

Question

我使用Google地图指引API生成地图路线，并使用路线指向地点，但是如何使用JavaScript API获取实际文字路线？

var directionsDisplay; 
var directionsService = new google.maps.DirectionsService();  
var mapOfDirections;  
directionsDisplay = new google.maps.DirectionsRenderer(); 
var center = new google.maps.LatLng(lat, lon); 
var mapOptions = { 
    zoom:6, 
    center: center 
} 
maps = new google.maps.Map(document.getElementById('main'), mapOptions); 
directionsDisplay.setMap(maps); 
var request = { 
    origin:from,   
    destination:to, 
    travelMode:google.maps.TravelMode.DRIVING 
}; 
directionsService.route(request, function(result, status){ 
if(status==google.maps.DirectionsStatus.OK) directionsDisplay.setDirections(result); 
}); 

Answer 1

以下是我最后做它：

function calculateDirections(){ 
    var directionsDisplay; 
    var directionsService = new google.maps.DirectionsService(); 
    var directionsOptions = { 
     panel:document.getElementById('directionsDiv') 
    } 
    directionsDisplay = new google.maps.DirectionsRenderer(directionsOptions); 
    var request = { 
     origin:from,  
     destination:to, 
     travelMode:google.maps.TravelMode.DRIVING 
    }; 
    directionsService.route(request, function(result, status){ 
     if(status==google.maps.DirectionsStatus.OK) directionsDisplay.setDirections(result);   
    }); 
}