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set google origin search box address with a variable

I'm trying to make origin SearchBox destination be string with legit direction, but when I do so I still need to select the first option for it to work (to calculate distance).
Got the this searching around to calculate distance between 2 points and it works perfectly:
How can I add multiple searchBoxes in my google maps api web?
I got a string for example :albrook mall which i know exist( this string is dynamic is coming from a variable and all address are validated. get the needed address pass it to a variable so I can read it on the frontEnd, and set the value of search box in the html. the value is updated with jquery
But what happens is that I still have to click on the origin search box then this list all possible locations which in my case is the first one, how can I make the map either auto select the first option or recognize the address that is set in the input value?
<script>
function initMap() {
var map = new google.maps.Map(document.getElementById('map-canvas'), {
center: {
lat: 9.0271554,
lng: 79.4816371
},
zoom: 15
});
var marker = new google.maps.Marker({
map: map,
draggable: false
});
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
initialLocation = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
map.setCenter(initialLocation);
/*marker.setPosition(initialLocation); */
});
}
new AutocompleteDirectionsHandler(map);
}
/**
* #constructor
*/
function AutocompleteDirectionsHandler(map) {
this.map = map;
this.originPlaceId = null;
this.destinationPlaceId = null;
this.travelMode = 'DRIVING';
this.avoidTolls = true;
this.avoidHighways= true;
//this.provideRouteAlternatives= true,
this.avoidFerries= true;
this.directionsService = new google.maps.DirectionsService();
this.directionsRenderer = new google.maps.DirectionsRenderer();
this.directionsRenderer.setMap(map);
var originInput = document.getElementById('orign');
var destinationInput = document.getElementById('destn');
var originAutocomplete = new google.maps.places.SearchBox(originInput);
var destinationAutocomplete =
new google.maps.places.SearchBox(destinationInput);
this.setupPlaceChangedListener(originAutocomplete, 'ORIG');
this.setupPlaceChangedListener(destinationAutocomplete, 'DEST');
}
AutocompleteDirectionsHandler.prototype.setupPlaceChangedListener = function(
autocomplete, mode) {
var me = this;
autocomplete.bindTo('bounds', this.map);
autocomplete.addListener('places_changed', function() {
var places = autocomplete.getPlaces();
var place = places[0];
if (!place.place_id) {
window.alert('Please select an option from the dropdown list.');
return;
}
if (mode === 'ORIG') {
me.originPlaceId = place.place_id;
} else {
me.destinationPlaceId = place.place_id;
}
me.route();
});
};
AutocompleteDirectionsHandler.prototype.route = function() {
if (!this.originPlaceId || !this.destinationPlaceId) {
return;
}
var me = this;
this.directionsService.route({
origin: {
'placeId': this.originPlaceId
},
destination: {
'placeId': this.destinationPlaceId
},
travelMode: this.travelMode,
avoidTolls: this.avoidTolls
},
function(response, status) {
if (status === 'OK') {
me.directionsRenderer.setDirections(response);
computeTotalDistance(response);
} else {
window.alert('Directions request failed due to ' + status);
}
});
};
// from Google Maps API: Total distance with waypoints
// https://stackoverflow.com/questions/12802202/google-maps-api-total-distance-with-waypoints
function computeTotalDistance(result) {
var totalDist = 0;
var totalTime = 0;
var myroute = result.routes[0];
for (i = 0; i < myroute.legs.length; i++) {
totalDist += myroute.legs[i].distance.value;
totalTime += myroute.legs[i].duration.value;
}
totalDist = totalDist / 1000.
time = (totalTime / 60).toFixed(2)
document.getElementById("totalkm").innerHTML ="" + totalDist + "km" ;
document.getElementById("totaltime").innerHTML ="" + time + " minutos";
if(totalDist <= 5){
document.getElementById("totalCost").innerHTML =" $3.50";
}
else{
kmPrice = (totalDist - 5) * 0.75;
document.getElementById("totalCost").innerHTML ="$" +(kmPrice + 3.50).toFixed(2)+ "";
}
}
function send_handle(){
let name=document.getElementById("name").value;
///let lastname= document.getElementById("lastname").value;
let inst= document.getElementById("instructions").value;
let origin= document.querySelector(".selectButtons input#orign").value;
let destination= document.querySelector(".selectButtons input#destn").value;
let cost= document.getElementById("totalCost").innerHTML;
let distance= document.getElementById("totalkm").innerHTML;
// win.focus();
}
</script>
<html>
<div class="selectButtons" >
<input type="text" id="orign" placeholder="origen">
<input type="text" id="destn" placeholder="destino">
<span> Distancia en KM <div id="totalkm">0km</div> </span>
<span> Distancia en tiempo <div id="totaltime">o.oo</div> </span>
<span> costo por envio<div id="totalCost">$0</div></div> </span>
</div>
</html>

You can call the places service to get the PlaceId (with your string), then pass that placeId into the constructor for your AutocompleteDirectionsHandler or if you already have the PlaceId (you are allowed to store those), just use it, although you probably want to initialize the origin input with the string.
var origin = "Allbrook, Panama";
var originInput = document.getElementById('orign');
originInput.value = origin;
const request = {
query: origin,
fields: ["name", "geometry", "place_id"],
};
var originPlaceId;
var service = new google.maps.places.PlacesService(map);
service.findPlaceFromQuery(request, (results, status) => {
if (status === google.maps.places.PlacesServiceStatus.OK && results) {
originPlaceId = results[0].place_id;
console.log("placeId="+originPlaceId+" coords="+results[0].geometry.location.toUrlValue(6));
new AutocompleteDirectionsHandler(map, originPlaceId);
map.setCenter(results[0].geometry.location);
}
});
Add the initial origin placeId to the AutocompleteDirectionsHandler constructor:
function AutocompleteDirectionsHandler(map, originPlaceId) {
this.map = map;
this.originPlaceId = originPlaceId;
// ...
on load:
after selecting destination from dropdown:
code snippet:
let map;
function initMap() {
map = new google.maps.Map(document.getElementById('map-canvas'), {
center: {
lat: 9.0271554,
lng: 79.4816371
},
zoom: 15
});
var origin = "Allbrook, Panama";
var originInput = document.getElementById('orign');
originInput.value = origin;
const request = {
query: origin,
fields: ["name", "geometry", "place_id"],
};
var originPlaceId;
var service = new google.maps.places.PlacesService(map);
service.findPlaceFromQuery(request, (results, status) => {
if (status === google.maps.places.PlacesServiceStatus.OK && results) {
originPlaceId = results[0].place_id;
console.log("placeId="+originPlaceId+" coords="+results[0].geometry.location.toUrlValue(6));
new AutocompleteDirectionsHandler(map, originPlaceId);
map.setCenter(results[0].geometry.location);
}
});
var marker = new google.maps.Marker({
map: map,
draggable: false
});
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
initialLocation = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
map.setCenter(initialLocation);
/*marker.setPosition(initialLocation); */
});
}
}
/**
* #constructor
*/
function AutocompleteDirectionsHandler(map, originPlaceId) {
this.map = map;
this.originPlaceId = originPlaceId;
this.destinationPlaceId = null;
this.travelMode = 'DRIVING';
this.avoidTolls = true;
this.avoidHighways = true;
//this.provideRouteAlternatives= true,
this.avoidFerries = true;
this.directionsService = new google.maps.DirectionsService();
this.directionsRenderer = new google.maps.DirectionsRenderer();
this.directionsRenderer.setMap(map);
var originInput = document.getElementById('orign');
var destinationInput = document.getElementById('destn');
var originAutocomplete = new google.maps.places.SearchBox(originInput);
var destinationAutocomplete =
new google.maps.places.SearchBox(destinationInput);
this.setupPlaceChangedListener(originAutocomplete, 'ORIG');
this.setupPlaceChangedListener(destinationAutocomplete, 'DEST');
}
AutocompleteDirectionsHandler.prototype.setupPlaceChangedListener = function(
autocomplete, mode) {
var me = this;
autocomplete.bindTo('bounds', this.map);
autocomplete.addListener('places_changed', function() {
var places = autocomplete.getPlaces();
var place = places[0];
if (!place.place_id) {
window.alert('Please select an option from the dropdown list.');
return;
}
if (mode === 'ORIG') {
me.originPlaceId = place.place_id;
} else {
me.destinationPlaceId = place.place_id;
}
me.route();
});
};
AutocompleteDirectionsHandler.prototype.route = function() {
if (!this.originPlaceId || !this.destinationPlaceId) {
return;
}
var me = this;
this.directionsService.route({
origin: {
'placeId': this.originPlaceId
},
destination: {
'placeId': this.destinationPlaceId
},
travelMode: this.travelMode,
avoidTolls: this.avoidTolls
},
function(response, status) {
if (status === 'OK') {
me.directionsRenderer.setDirections(response);
computeTotalDistance(response);
} else {
window.alert('Directions request failed due to ' + status);
}
});
};
// from Google Maps API: Total distance with waypoints
// https://stackoverflow.com/questions/12802202/google-maps-api-total-distance-with-waypoints
function computeTotalDistance(result) {
var totalDist = 0;
var totalTime = 0;
var myroute = result.routes[0];
for (i = 0; i < myroute.legs.length; i++) {
totalDist += myroute.legs[i].distance.value;
totalTime += myroute.legs[i].duration.value;
}
totalDist = totalDist / 1000.
time = (totalTime / 60).toFixed(2)
document.getElementById("totalkm").innerHTML = "" + totalDist + "km";
document.getElementById("totaltime").innerHTML = "" + time + " minutos";
if (totalDist <= 5) {
document.getElementById("totalCost").innerHTML = " $3.50";
} else {
kmPrice = (totalDist - 5) * 0.75;
document.getElementById("totalCost").innerHTML = "$" + (kmPrice + 3.50).toFixed(2) + "";
}
}
function send_handle() {
let name = document.getElementById("name").value;
///let lastname= document.getElementById("lastname").value;
let inst = document.getElementById("instructions").value;
let origin = document.querySelector(".selectButtons input#orign").value;
let destination = document.querySelector(".selectButtons input#destn").value;
let cost = document.getElementById("totalCost").innerHTML;
let distance = document.getElementById("totalkm").innerHTML;
// win.focus();
}
function createMarker(place) {
if (!place.geometry || !place.geometry.location) return;
const marker = new google.maps.Marker({
map,
position: place.geometry.location,
});
google.maps.event.addListener(marker, "click", () => {
infowindow.setContent(place.name || "");
infowindow.open(map);
});
}
window.initMap = initMap;
#map-canvas {
height: 80%;
}
/* Optional: Makes the sample page fill the window. */
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
<html>
<div class="selectButtons">
<input type="text" id="orign" placeholder="origen" />
<input type="text" id="destn" placeholder="destino" />
<span> Distancia en KM <div id="totalkm">0km</div> </span>
<span> Distancia en tiempo <div id="totaltime">o.oo</div> </span>
<span> costo por envio<div id="totalCost">$0</div> </span>
</div>
<div id="map-canvas"></div>
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&libraries=places&callback=initMap" async defer></script>
</html>

Java Script Function Not Returning Value

I have a java script function that return a string value, when i call this function on button click it return nothing.
Here is my function code:
function PlotMap(StartLat, StartLog, EndLat, EndLog) {
var map;
var directionsDisplay;
var directionsService = new google.maps.DirectionsService();
var llList = "";
function initMap() {
map = new google.maps.Map(document.getElementById('map'), {
center: { lat: StartLat, lng: StartLog },
zoom: 15
});
directionsDisplay = new google.maps.DirectionsRenderer();
directionsDisplay.setMap(map);
calcRoute();
} //End function initMap
function calcRoute() {
var start = new google.maps.LatLng(StartLat, StartLog);
var end = new google.maps.LatLng(EndLat, EndLog);
var bounds = new google.maps.LatLngBounds();
bounds.extend(start);
bounds.extend(end);
map.fitBounds(bounds);
var request = {
origin: start,
destination: end,
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function (response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
directionsDisplay.setMap(map);
if (response.routes && response.routes.length > 0) {
var routes = response.routes;
for (var j = 0; j < routes.length; j++) {
var points = routes[j].overview_path;
var ul = document.getElementById("vertex");
for (var i = 0; i < points.length; i++) {
var li = document.createElement('li');
li.innerHTML = getLiText(points[i]);
ul.appendChild(li);
llList = llList + getLiText(points[i]) + " / ";
}
}
}
} else {
alert("Directions Request from " + start.toUrlValue(6) + " to " + end.toUrlValue(6) + " failed: " + status);
}
});
} //End function calcRoute
function getLiText(point) {
var lat = point.lat(),
lng = point.lng();
return "lat: " + lat + " lng: " + lng;
}
initMap();
return llList;}
And Here i am calling this function on button click in asp.net page.
<script>
function ii() {
var tt = PlotMap(26.547648, 81.529472, 26.612515, 81.354248);
alert(tt);
}</script>
Asp.net page code:
<body>
<input id="Button1" type="button" value="button" onclick="ii();"/>
<div id="map" style="float: left; width: 70%; height: 400px;"></div>
<ul id="vertex">
<li></li>
</ul>
Everything works fine but function not returning any value. Please help i am new in web development. Thanks.

I tested the logic in your code and it looks sound. As I was able to get it to return a sting as you wanted but had to comment out all the google map logic.
Although, I noticed, the below if statement has no else statement therefore if this statement returns false then the string will be empty and you wont be alerted.
if (response.routes && response.routes.length > 0) {
Maybe try adding a matching else statement:
} else { alert("No Routes"); }
This should at least give you some more insight into what is going on.
Here is the new logic in your calcRoute function:
function calcRoute() {
var start = new google.maps.LatLng(StartLat, StartLog);
var end = new google.maps.LatLng(EndLat, EndLog);
var bounds = new google.maps.LatLngBounds();
bounds.extend(start);
bounds.extend(end);
map.fitBounds(bounds);
var request = {
origin: start,
destination: end,
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function (response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
directionsDisplay.setMap(map);
if (response.routes && response.routes.length > 0) {
var routes = response.routes;
for (var j = 0; j < routes.length; j++) {
var points = routes[j].overview_path;
var ul = document.getElementById("vertex");
for (var i = 0; i < points.length; i++) {
var li = document.createElement('li');
li.innerHTML = getLiText(points[i]);
ul.appendChild(li);
llList = llList + getLiText(points[i]) + " / ";
}
}
} else { alert("No Routes"); }
} else {
alert("Directions Request from " + start.toUrlValue(6) + " to " + end.toUrlValue(6) + " failed: " + status);
}
});
} //End function calcRoute

google maps autocomplete with dynamic arrays

So I have dynamic text inputs which i require to give it access to google maps (places) autocomplete api.
The "start", "end" and 1st "waypoint"(not dynamic) works well, but after 4 hours, i am still struggling to get my dynamic text inputs to autocomplete. And can not find anything resembling the answer on google.
This is what i have so far:
Javascript:
function initialize() {
var options = {
componentRestrictions: {
country: "au"
}
};
var inputs = document.getElementById('start');
var autocompletes = new google.maps.places.Autocomplete(inputs, options);
var inpute = document.getElementById('end');
var autocompletee = new google.maps.places.Autocomplete(inpute, options);
var waypoints = document.getElementsByName("waypoints[]");
for (var i = 0; i < waypoints.length; i++) {
var inputw = waypoints[i];
var autocompletew = new google.maps.places.Autocomplete(inputw, options);
}
directionsDisplay = new google.maps.DirectionsRenderer();
var melbourne = new google.maps.LatLng(-31.953512, 115.857048);
var myOptions = {
zoom: 12,
mapTypeId: google.maps.MapTypeId.ROADMAP,
center: melbourne
}
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
directionsDisplay.setMap(map);
}
HTML:
var counter = 1;
var limit = 10;
var i = 1;
function addInput(divName){
if (counter == limit) {
alert("You have reached the limit of adding " + counter + " inputs");
}
else {
var newdiv = document.createElement('div');
newdiv.innerHTML = (counter + 1) + "<input type=text name=waypoints[] autocomplete=on>";
document.getElementById(divName).appendChild(newdiv);
counter++;
i++;
var inputw = waypoints[i];
var autocompletew = new google.maps.places.Autocomplete(inputw, options);
}
}

Dynamically creating the content, then using the reference to that works for me:
function addInput(divName) {
if (counter == limit) {
alert("You have reached the limit of adding " + counter + " inputs");
} else {
var newbr = document.createElement('br');
var newtxt = document.createTextNode(""+(counter+1));
var newinput = document.createElement("input");
newinput.setAttribute("name","waypoints[]");
newinput.setAttribute("autocompute","on");
newinput.setAttribute("type", "text");
document.getElementById(divName).appendChild(newbr);
document.getElementById(divName).appendChild(newtxt);
document.getElementById(divName).appendChild(newinput);
counter++;
i++;
var autocompletew = new google.maps.places.Autocomplete(newinput, ACoptions);
}
proof of concept fiddle
code snippet:
var counter = 1;
var limit = 10;
var i = 0;
var ACoptions = {
componentRestrictions: {
country: "au"
}
};
function initialize() {
var inputs = document.getElementById('start');
var autocompletes = new google.maps.places.Autocomplete(inputs, ACoptions);
var inpute = document.getElementById('end');
var autocompletee = new google.maps.places.Autocomplete(inpute, ACoptions);
var waypoints = document.getElementsByName("waypoints[]");
for (var i = 0; i < waypoints.length; i++) {
var inputw = waypoints[i];
var autocompletew = new google.maps.places.Autocomplete(inputw, ACoptions);
}
directionsDisplay = new google.maps.DirectionsRenderer();
directionsService = new google.maps.DirectionsService();
var melbourne = new google.maps.LatLng(-31.953512, 115.857048);
var myOptions = {
zoom: 12,
mapTypeId: google.maps.MapTypeId.ROADMAP,
center: melbourne
}
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
directionsDisplay.setMap(map);
google.maps.event.addDomListener(document.getElementById('getdir'), 'click', function() {
calculateAndDisplayRoute(directionsService, directionsDisplay);
});
}
google.maps.event.addDomListener(window, "load", initialize);
function addInput(divName) {
if (counter == limit) {
alert("You have reached the limit of adding " + counter + " inputs");
} else {
var newbr = document.createElement('br');
var newtxt = document.createTextNode("" + (counter + 1));
var newinput = document.createElement("input");
newinput.setAttribute("name", "waypoints[]");
newinput.setAttribute("autocompute", "on");
newinput.setAttribute("type", "text");
// newin = (counter + 1) + "<input type=text name=waypoints[] autocomplete=on>";
document.getElementById(divName).appendChild(newbr);
document.getElementById(divName).appendChild(newtxt);
document.getElementById(divName).appendChild(newinput);
counter++;
i++;
console.log("cntr=" + counter + " i=" + i + " waypoints[].length=" + document.getElementsByName("waypoints[]"));
// var inputw = waypoints[i];
var autocompletew = new google.maps.places.Autocomplete(newinput, ACoptions);
}
}
function calculateAndDisplayRoute(directionsService, directionsDisplay) {
var waypts = [];
var checkboxArray = document.getElementById('dynamicInput');
var waypointElmts = document.getElementsByName('waypoints[]');
for (var i = 0; i < waypointElmts.length; i++) {
if (waypointElmts[i].value.length > 0) {
waypts.push({
location: waypointElmts[i].value,
stopover: true
});
}
}
directionsService.route({
origin: document.getElementById('start').value,
destination: document.getElementById('end').value,
waypoints: waypts,
optimizeWaypoints: true,
travelMode: 'DRIVING'
}, function(response, status) {
if (status === 'OK') {
directionsDisplay.setDirections(response);
} else {
window.alert('Directions request failed due to ' + status);
}
});
}
html,
body,
#map_canvas {
height: 100%;
width: 100%;
margin: 0px;
padding: 0px
}
<script src="https://maps.googleapis.com/maps/api/js?libraries=places&key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk">
</script>
<input id="start" value="Margaret River, AU" />
<input id="end" value="Perth, AU" />
<div id="dynamicInput">
<br>1
<input type="text" name="waypoints[]" autocomplete="on">
</div>
<input type="button" value="Another Delivery" onClick="addInput('dynamicInput');">
<input id="getdir" type="button" value="get route" />
<div id="map_canvas"></div>

How to return value from array to the function

Here I am calculating the distance and time between two latitude and longitude points.Almost I am getting the answer but I am not able to return the value to the function.
Please help me. Thanks in advance
My codings are :
function initMap() {
console.log(getDistanceandTime(srcRouteAddress.lat,srcRouteAddress.lng,destRouteAddress.lat,destRouteAddress.lng));
function getDistanceandTime(lat1,lon1,lat2,lon2){
var origin = {lat: parseFloat(lat1), lng: parseFloat(lon1)};
var destination = {lat: parseFloat(lat2), lng: parseFloat(lon2)};
var service = new google.maps.DistanceMatrixService;
//var test = [];
service.getDistanceMatrix({
origins: [origin],
destinations: [destination],
travelMode: google.maps.TravelMode.DRIVING
}, function (response, status) {
if (status == google.maps.DistanceMatrixStatus.OK) {
var test_values = [];
var originList = response.originAddresses;
for (var i = 0; i < originList.length; i++) {
var results = response.rows[i].elements;
for (var j = 0; j < results.length; j++) {
var test = results[j].distance.text + ' in ' + results[j].duration.text;
test_values.push(test);
console.log(test_values);
}
}
return test_values;
}
return test_values;
});
}
}

if it is a synchronous call, then try this, your var test_values = []; should be outside if (status == google.maps.DistanceMatrixStatus.OK) condition. And most probably insideif (status == google.maps.DistanceMatrixStatus.OK) is not executing
also google.maps.DistanceMatrixStatus.OK is asynchronous so better to return value inside if(google.maps.DistanceMatrixStatus.OK)
So try this
function initMap() {
console.log(getDistanceandTime(srcRouteAddress.lat,srcRouteAddress.lng,destRouteAddress.lat,destRouteAddress.lng));
function getDistanceandTime(lat1,lon1,lat2,lon2){
var origin = {lat: parseFloat(lat1), lng: parseFloat(lon1)};
var destination = {lat: parseFloat(lat2), lng: parseFloat(lon2)};
var service = new google.maps.DistanceMatrixService;
//var test = [];
service.getDistanceMatrix({
origins: [origin],
destinations: [destination],
travelMode: google.maps.TravelMode.DRIVING
}, function (response, status) {
var test_values = [];
if (status == google.maps.DistanceMatrixStatus.OK) {
var originList = response.originAddresses;
for (var i = 0; i < originList.length; i++) {
var results = response.rows[i].elements;
for (var j = 0; j < results.length; j++) {
var test = results[j].distance.text + ' in ' + results[j].duration.text;
test_values.push(test);
console.log(test_values);
}
}
return test_values;
}
});
}
}

Try this..
var test_values = []; // global variable
function initMap() {
// your code here
}
function showLatLng(){
console.log(test_values); // will output the content
}
Javascript runs on the UI thread; if your code waits for the server to reply, the browser must remain frozen. Ajax jquery async return value

Google Maps API OVER_QUERY_LIMIT 10 Destinations [closed]

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I've been researching this all day and still haven't come across a solution that works. I'm using the Google Maps Distance Matrix Service with 1 origin and 14 destinations. I modified the sample code from Google (https://developers.google.com/maps/documentation/javascript/examples/distance-matrix) and just added more destinations to test it out. With anything over 10 destinations, the OVER_QUERY_LIMIT error occurs and mis-places a marker.
From the usage limits I found (100 elements per 10 seconds), I shouldn't be hitting the limit at all. I have also tried inserting my API Key in this line, to no avail:
src="https://maps.googleapis.com/maps/api/js?v=3.exp"
Any help would be appreciated! Thanks.
Code changes to the sample code from Google:
var destinationA = new google.maps.LatLng(45.465422,9.185924);
var destinationB = new google.maps.LatLng(41.385064,2.173403);
var destinationC = new google.maps.LatLng(40.416775,-3.70379);
var destinationD = new google.maps.LatLng(51.507351,-0.127758);
var destinationE = new google.maps.LatLng(48.856614,2.352222);
var destinationF = new google.maps.LatLng(41.902784,12.496366);
var destinationG = new google.maps.LatLng(50.85034,4.35171);
var destinationH = new google.maps.LatLng(46.198392,6.142296);
var destinationI = new google.maps.LatLng(47.36865,8.539183);
var destinationJ = new google.maps.LatLng(53.408371,-2.991573);
var destinationK = new google.maps.LatLng(37.389092,-5.984459);
var destinationL = new google.maps.LatLng(53.349805,-6.26031);
var destinationM = new google.maps.LatLng(55.864237,-4.251806);
var destinationN = new google.maps.LatLng(51.92442,4.477733);
function calculateDistances() {
var service = new google.maps.DistanceMatrixService();
service.getDistanceMatrix(
{
origins: [origin],
destinations: [destinationA, destinationB,destinationC, destinationD,destinationE, destinationF,destinationG, destinationH,destinationI, destinationJ,destinationK, destinationL, destinationM, destinationN],
travelMode: google.maps.TravelMode.DRIVING,
unitSystem: google.maps.UnitSystem.METRIC,
avoidHighways: false,
avoidTolls: false
}, callback);
}

The OVER_QUERY_ERROR is coming from the geocoder, not the DistanceMatrix call. Remove this line:
addMarker(destinations[j], true);
(you don't need the geocoder, you already have the coordinates for the markers)
working code snippet:
var map;
var geocoder;
var bounds = new google.maps.LatLngBounds();
var markersArray = [];
var origin = new google.maps.LatLng(55.930, -3.118);
var origin2 = 'Greenwich, England';
var destinationA = new google.maps.LatLng(45.465422, 9.185924);
var destinationB = new google.maps.LatLng(41.385064, 2.173403);
var destinationC = new google.maps.LatLng(40.416775, -3.70379);
var destinationD = new google.maps.LatLng(51.507351, -0.127758);
var destinationE = new google.maps.LatLng(48.856614, 2.352222);
var destinationF = new google.maps.LatLng(41.902784, 12.496366);
var destinationG = new google.maps.LatLng(50.85034, 4.35171);
var destinationH = new google.maps.LatLng(46.198392, 6.142296);
var destinationI = new google.maps.LatLng(47.36865, 8.539183);
var destinationJ = new google.maps.LatLng(53.408371, -2.991573);
var destinationK = new google.maps.LatLng(37.389092, -5.984459);
var destinationL = new google.maps.LatLng(53.349805, -6.26031);
var destinationM = new google.maps.LatLng(55.864237, -4.251806);
var destinationN = new google.maps.LatLng(51.92442, 4.477733);
var destinationIcon = 'https://chart.googleapis.com/chart?chst=d_map_pin_letter&chld=D|FF0000|000000';
var originIcon = 'https://chart.googleapis.com/chart?chst=d_map_pin_letter&chld=O|FFFF00|000000';
function initialize() {
var opts = {
center: new google.maps.LatLng(55.53, 9.4),
zoom: 10
};
map = new google.maps.Map(document.getElementById('map-canvas'), opts);
geocoder = new google.maps.Geocoder();
}
function calculateDistances() {
deleteOverlays();
var destinations = [destinationA, destinationB, destinationC, destinationD, destinationE, destinationF, destinationG, destinationH, destinationI, destinationJ, destinationK, destinationL, destinationM, destinationN];
for (var i = 0; i < destinations.length; i++) {
bounds.extend(destinations[i]);
var marker = new google.maps.Marker({
map: map,
position: destinations[i],
icon: destinationIcon
});
markersArray.push(marker);
}
map.fitBounds(bounds);
var service = new google.maps.DistanceMatrixService();
service.getDistanceMatrix({
origins: [origin],
destinations: destinations,
travelMode: google.maps.TravelMode.DRIVING,
unitSystem: google.maps.UnitSystem.METRIC,
avoidHighways: false,
avoidTolls: false
}, callback);
}
function callback(response, status) {
if (status != google.maps.DistanceMatrixStatus.OK) {
alert('Error was: ' + status);
} else {
var origins = response.originAddresses;
var destinations = response.destinationAddresses;
var outputDiv = document.getElementById('outputDiv');
outputDiv.innerHTML = '';
for (var i = 0; i < origins.length; i++) {
var results = response.rows[i].elements;
addMarker(origins[i], false);
for (var j = 0; j < results.length; j++) {
// addMarker(destinations[j], true);
outputDiv.innerHTML += "<b>"+j+":</b>"+origins[i] + ' to ' + destinations[j] + ': ' + results[j].distance.text + ' in ' + results[j].duration.text + '<br>';
}
}
}
}
function addMarker(location, isDestination) {
var icon;
if (isDestination) {
icon = destinationIcon;
} else {
icon = originIcon;
}
geocoder.geocode({
'address': location
}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
bounds.extend(results[0].geometry.location);
map.fitBounds(bounds);
var marker = new google.maps.Marker({
map: map,
position: results[0].geometry.location,
icon: icon
});
markersArray.push(marker);
} else {
alert('Geocode was not successful for the following reason: ' + status);
}
});
}
function deleteOverlays() {
for (var i = 0; i < markersArray.length; i++) {
markersArray[i].setMap(null);
}
markersArray = [];
}
google.maps.event.addDomListener(window, 'load', initialize);
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
#map-canvas {
height: 100%;
width: 50%;
}
#content-pane {
float: right;
width: 48%;
padding-left: 2%;
}
#outputDiv {
font-size: 11px;
}
<script src="https://maps.googleapis.com/maps/api/js"></script>
<p>
<button type="button" onclick="calculateDistances();">Calculate distances</button>
</p>
</div>
<div id="outputDiv"></div>
</div>
<div id="map-canvas"></div>