Google Maps: Clickable Custom Marker - javascript

Upon creating many custom markers from within a loop, I cannot seem to find a solution to being able to link to external websites while each marker has a unique link.
I have tried many variations of this code, but seem to keep running into undefined variables (code below demonstrates undefined map_markers variable)
<script src="https://maps.googleapis.com/maps/api/js"></script>
<script type="text/javascript">
var map;
// generated by PHP, but output looks like this...
var map_markers = [[43.536396, -110.740956, "T1", "/test-url"],[43.812092, -111.097181, "T2", "/test-url2"],[43.53640889360323, -110.74090051257326, "T3", "/test-url3"],[43.463373, -110.762519, "T4", "/test-url4"]];
google.maps.event.addDomListener(window, 'load', function() {
var mapCanvas = document.getElementById('map');
map = new google.maps.Map(mapCanvas, {
center: new google.maps.LatLng(37.8846194, -95.660041),
zoom: 4,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
for (var i = 0; i < map_markers.length; i++) {
var marker = new google.maps.Marker({
position: {'lat': map_markers[i][0], 'lng': map_markers[i][1]},
map: map,
title: map_markers[i][2]
});
google.maps.event.addListener(marker, 'click', (function(markers, index) {
return function() {
window.open("http://www.example.com/" . markers[index][3], '_blank');
}
})(map_markers, i));
}
});
</script>
Note: The code above uses an enclosure, but i've tried many variations like adding a "url" param to the marker (but this results in the url property being undefined?), i've tried this.url when having that property too, but no luck...
Above code generates this error upon clicking a marker:
Uncaught TypeError: Cannot read property '135' of undefined where 135 is the index number for the marker clicked
I have searched the web, but no solution seems to fix my problem. Maybe i'm missing something simple, but it's stumped me [?]
PS: The map and markers generate perfect, just the JS error upon clicking a marker that i'm having issues with!
TIA!

Looks like
window.open("http://www.example.com/" . markers[index][3], '_blank');
should be
window.open("http://www.example.com/" + map_markers[index][3], '_blank');

Related

How to get onclick event of marker generated by getroute

In this jsfiddle is simplified version of my js: http://jsfiddle.net/Drecker/2m4kvxb8/4/ Note that interesting part of the jsfiddle is only showRoute method. And method showMarker only shows desired behavior on normal marker.
Basically I generate a route via gmap3 getroute with some waypoints. After clicking on a waypoint I need to open a small infobox with more custom information of that point - so basically somehow get onclick event of such waypoint (with some identification of that waypoint so I would be able to get proper information). I'm able to achieve desired behavior on a separate marker (as you can see in the jsfiddle - that's the fully functional separate marker on the top left), but not on the markers generated by directionrenderer.
Furthermore please note that my waypoints have stopover: false and such markers for some reason ignore (some) options like title, as you can see in jsfiddle.
Any help is very appreciated - I've tried several things none of them works.
Hope you are using the google APIs library some version, in case something like this
<script src="http://maps.googleapis.com/maps/api/js?sensor=false&libraries=places,geometry" type="text/javascript"></script>
You have one div space to show the map, say
<div id="map" style="width: 700px; height: 600px;"></div>
So you can use this for adding listener on markers
//location is an array variable where you store your co ordinates
//code to show map
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 10,
center: new google.maps.LatLng(locations[0].latitude, locations[0].longitude),
mapTypeId: google.maps.MapTypeId.ROADMAP
});
//adding listener
var marker,i;
var infowindow = new google.maps.InfoWindow();
google.maps.event.addListener(marker, 'click', (function (marker, i) {
return function () {
infowindow.setContent(locations[i].city);
infowindow.open(map, marker);
}
})(marker, i));
where
marker
is the varible which will be something like this,
//adding marker
for (i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i].latitude, locations[i].longitude),
map: map
});
Hope from above you got some idea, might be helpful for you with your problem
There is no such option, according to the documentation and a lot of similar questions here on the stackoverflow, you can't bind click action to waypoints.
I have a workaround for that problem. The main idea is to add markers instead of waypoints and change their icon. Marker has much more options than waypoint. So I removed waypoints and added markers. Note that you have to be much more precise when adding marker's location
options without waypoints:
options: {origin: {lat:49.9, lng: 14.9},
destination: {lat: 50.1, lng: 15.1},
travelMode: google.maps.DirectionsTravelMode.DRIVING
},
added markers with a new icon and click event:
marker:{
values:[
{latLng:[49.96485, 14.88392], data:"Waypoint1", options:{icon: "http://mt.google.com/vt/icon/name=icons/spotlight/directions_transfer_icon_10px.png&scale=1"}},
{latLng:[49.97730, 14.88185], data:"Waypoint2", options:{icon: "http://mt.google.com/vt/icon/name=icons/spotlight/directions_transfer_icon_10px.png&scale=1"}}
],
options:{
draggable: false
},
events:{
click: function(marker, event, context){
var map = $(this).gmap3("get"),
infowindow = $(this).gmap3({get:{name:"infowindow"}});
if (infowindow){
infowindow.open(map, marker);
infowindow.setContent(context.data);
} else {
$(this).gmap3({
infowindow:{
anchor:marker,
options:{content: context.data}
}
});
}
}
}
}
Here is my workaround for that problem : DEMO

jQuery/Javascript: Google Maps: How to toggle multiple pins on a map?

I have a database of locations which I want to be able to print on a map. Ideally there should be one map with multiple pins for each location you have toggled on. So click a button for location X and it shows up on the map. Click the button for location Y and it shows up on the same map. Click X again and it hides from the map.
Currently I have it so I click on X and the map gets redrawn centered around point X.
Here is the HTML for each button:
<input type='button' data-lat='38.89864400' data-long='-77.05283400'
data-when='20 Aug at 2:00am' value='Location X' class='click' />
The jQuery I'm using is:
jQuery(document).ready(
function initialize() {
jQuery("input.click").click(function() {
showOnMap(jQuery(this).data('lat'), jQuery(this).data('long'), jQuery(this).data('when'));
});
}
);
function showOnMap(lat, long, message) {
var myLatlng = new google.maps.LatLng(lat, long);
var mapOptions = {
zoom: 13,
center: myLatlng
}
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: message
});
google.maps.event.addDomListener(window, 'load', showOnMap);
}
Is there an easy way to switch from what I have to what I want? I've searched for a while but no one seems to be asking this use case in a browser, just Android (which I'm not doing).
Thanks!
There is an example in the documentation on how to hide/show markers. In short, a marker is:
hidden by setting its map to null
showed by setting its map to map
To do so, you will need to access each marker individually. If you have a definite number of locations, it can be done by naming them with different names (eg var markerLocationX, var markerLocationY, etc). Otherwise, the markers need to be stored in an array.
Supposing you have a definite number of known locations to toggle the markers, your javascript code may look like this:
function toggleMarker(markerName) {
if (markerName.getMap() == null) {
markerName.setMap(map);
} else {
markerName.setMap(null);
}
}

Getting data stored in additional field of googlemap's marker

I'm working with google maps api and javascript which I am not much familiar with. Here's the code I use to draw markers on my map. I get Latitudes and Longitudes from my database:
var geocoder;
var map;
var jsonStr = '<?php echo json_encode($arajka) ?>';
var LatLong = JSON.parse(jsonStr);
function initialize() {
geocoder = new google.maps.Geocoder();
var mapOptions = {
center: new google.maps.LatLng(50.000001, 20.000001),
zoom: 12
};
map = new google.maps.Map(document.getElementById("map-canvas"),
mapOptions);
var marker = [];
for(var i=0;i<LatLong.length;i++){
var LatLong1 = new google.maps.LatLng(LatLong[i].lat, LatLong[i].lon);
marker.ajdi=LatLong[i].id; // storing additional data (I need to get it when user clicks on certain marker)
marker.push(new google.maps.Marker({position: LatLong1, map: map, title: LatLong[i].login}));
}
// trying to set some listener but it fails.
google.maps.event.addListener(marker, 'click', function() {
map.setZoom(8);
map.setCenter(marker.getPosition());
alert("ASDASDASD" + marker.ajdi);
});
}
So, this listener doesn't work, I don't know why. Well, I expect that it doesn't exactly know what marker is it about. When I tried to do it with a single one, like in tutorial, it worked properly. I don't know what to do when I have this array. Any suggestions please?
You have several mistakes in your code:
As #Hollister mentions, marker is an array, so you need to put the addListener call inside the loop;
You have to store the additional marker data into the marker, not into the marker array;
you have to use this in the listener, not marker.
for(var i=0;i<LatLong.length;i++){
var LatLong1 = new google.maps.LatLng(LatLong[i].lat, LatLong[i].lon);
var this_marker = new google.maps.Marker({position: LatLong1, map: map, title: LatLong[i].login});
this_marker.ajdi=LatLong[i].id; // storing additional data (I need to get it when user clicks on certain marker)
marker.push(this_marker);
// trying to set some listener but it fails.
google.maps.event.addListener(this_marker, 'click', function() {
map.setZoom(8);
map.setCenter(this.getPosition());
alert("ASDASDASD" + this.ajdi);
});
}

Markers are not loading using setMap

I am trying to create jsp page with google map.There i am initializing google map like this..
var map;
var markersArray = [];
function initialize()
{
var chicago = new google.maps.LatLng(8.3641835,77.252415);
var mapOptions = {
zoom:9,
mapTypeId: google.maps.MapTypeId.ROADMAP,
center: chicago
};
map=new google.maps.Map(document.getElementById("map_canvas")
,mapOptions);
}
After response from one ajax call i am trying to adding markers on this google map
function showOverlays() {
////alert("overlay");
if (markersArray) {
for (i in markersArray) {
markersArray[i].setMap(map);
}
}
}
But markers are not displaying in the google map...What is the reason.Can anyone pls help
The problem is you don't seem to be adding anything to markersArray, at least in the code you've given us. Also nowhere do you seem to be creating markers.
However assuming that you are adding markers and pushing them into the array, then you merely have a simple mistake in your code. Change the loop to this:
for (i in markersArray) {
i.setMap(map);
}
Actually it was a problem with custom marker image.when i removed custom marker,it works

Automatically opening marker info pane on google map

I've created a custom map with most things I want on it (custom icon and custom info bubble), however I can't find a solution to automatically open the markers info window on load, I've done alot of searching but can't seem to find anything the code I have so far is as follows, any help would be much appreciated:
function initialize() {
var myLatlng = new google.maps.LatLng(54.325109,-2.742226);
var myOptions = {
zoom: 15,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
var countries = [
{
title:'Remedy',
lat:54.3210,
lon:-2.7438,
content:"<h2>Remedy</h2><p>address, <br />location, <br />postcode</p> <p><b>T:</b> 07595 153 835 <br /><b>E:</b> <a href='mailto:email'>email</a></p>"
}
];
for (var i = 0; i < countries.length; i++) {
var c = countries[i];
c.marker = new google.maps.Marker({
position: new google.maps.LatLng(c.lat, c.lon),
map: map,
icon: '/wp-content/themes/remedy/display_images/google_map_icon.png',
title: c.title});
c.infowindow = new google.maps.InfoWindow({content: c.content});
google.maps.event.addListener(c.marker, 'click', makeCallback(c));
}
function makeCallback(country) {
return function () {
country.infowindow.open(map, country.marker);
};
}
infowindow.open(map, marker);
}
Maybe it's not working because you just created the instance of the Map and didn't wait for the complete load of the map to open the InfoWindow.
Try something like this:
google.maps.event.addListenerOnce(map, 'tilesloaded', function(event) {
infowindow.open(map, marker);
});
According to the reference:
http://code.google.com/intl/en/apis/maps/documentation/javascript/reference.html#Map
tilesloaded - This event is fired when the visible tiles have finished loading.
Hmm, inforwindow does not refer to anything in your code, which is why it is not working.
Since you have one country in the list as of now you can do a quick test and intialize the infowindow variable with an actual info window, or better yet also since you have 1 item in the list, just define c to be outside the loop so you can access it and then open the popup passing it the map and the marker, something like this (assuming c has been defined outside the loop)
c.infowindow.open(map, c.marker);
var infowindow = new google.maps.InfoWindow({
content: "Test Route",
position: new google.maps.LatLng(38.8709866, -77.208055),
});
infowindow.open(map);

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