Google Directions Service w/ Waypoints returning ZERO_RESULTS


I currently have a DirectionsRenderer function that properly routes To and From fields on my page. After the routing is done I grab the overview_path and then load elements from a Fusion Table based on the path. Once this is done I've set up a listener looking for 'directions_changed', which would indicate a waypoint as such:

google.maps.event.addListener(directionsDisplay, 'directions_changed', function(){ var wypnt = directionsDisplay.getDirections().routes[0].legs[0].via_waypoints.toString().match(/[^()]+/); wypnt.toString().split(","); wypnt = new google.maps.LatLng(wypnt[1],wypnt[0]); var waypoint = []; waypoint.push({ location: wypnt, stopover: true }); route(waypoint); });

Once I pass it back to the route() function (the function that works normally with the To and From fields), I have this section of code:

if(waypoint){ var request = { origin: document.getElementById("search-input-from").value, destination: document.getElementById("search-input-to").value, waypoints: waypoint, optimizeWaypoints: true, travelMode: google.maps.DirectionsTravelMode.DRIVING }; } else{ var request = { origin: document.getElementById("search-input-from").value, destination: document.getElementById("search-input-to").value, travelMode: google.maps.DirectionsTravelMode.DRIVING }; }

The rest of the code is based off the following if statement:

directionService.route(request, function(result, status) { if (status == google.maps.DirectionsStatus.OK) { //do stuff } else { alert("Directions query failed: " + status); } };

Unfortunately all I'm getting back is "Directions query failed: ZERO_RESULTS". Any idea why this is happening? I'm not sure if the way I'm forming the waypoint is wrong or something else.


Some issues:


this will not have any effect to wypnt, split will not modify the original object. it has to be:

wypnt = wypnt.toString().split(",");

Why are you switching latitude and longitude here?

wypnt = new google.maps.LatLng(wypnt[1],wypnt[0]);

it has to be

wypnt = new google.maps.LatLng(wypnt[0],wypnt[1]);

Most of all: why do you do it at all? you take an array, convert it to a string, split the string to get the original array.

Simply use:

google.maps.event.addListenerOnce(directionsDisplay, 'directions_changed', function(){ var waypoints=directionsDisplay.getDirections().routes[0] .legs[0].via_waypoints||[]; for(var i=0;i<waypoints.length;++i){ waypoints[i]={stopover:true,location: waypoints[i]} } route(waypoints); });

But note: when you redraw the route directions_changed will fire again.


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