function initialize() {
var mapOptions = {
zoom: 10,
center: new google.maps.LatLng(-33.9, 151.2),
mapTypeId: google.maps.MapTypeId.ROADMAP
}
var map = new google.maps.Map(document.getElementById('map_canvas'),
mapOptions);
setMarkers(map, beaches);
}
/**
* Data for the markers consisting of a name, a LatLng and a zIndex for
* the order in which these markers should display on top of each
* other.
*/
var beaches = [
['Bondi Beach', -33.890542, 151.274856, 4],
['Coogee Beach', -33.923036, 151.259052, 5],
['Cronulla Beach', -34.028249, 151.157507, 3],
['Manly Beach', -33.80010128657071, 151.28747820854187, 2],
['Maroubra Beach', -33.950198, 151.259302, 1]
];
function setMarkers(map, locations) {
// Add markers to the map
// Marker sizes are expressed as a Size of X,Y
// where the origin of the image (0,0) is located
// in the top left of the image.
// Origins, anchor positions and coordinates of the marker
// increase in the X direction to the right and in
// the Y direction down.
var image = {
anchor: new google.maps.Point(16, 32),
origin: new google.maps.Point(0, 0),
scaledSize: new google.maps.Size(32, 32),
size: new google.maps.Size(64, 64),
url: "http://maps.google.com/mapfiles/kml/paddle/purple-square.png"
};
for (var i = 0; i < locations.length; i++) {
var beach = locations[i];
var myLatLng = new google.maps.LatLng(beach[1], beach[2]);
var marker = new google.maps.Marker({
position: myLatLng,
map: map,
icon: image,
title: beach[0],
zIndex: Math.round(myLatLng.lat() * -100000) << 5
});
}
}
google.maps.event.addDomListener(window, 'load', initialize);
html,
body {
height: 100%;
margin: 0;
padding: 0;
}
#map_canvas {
height: 100%;
}
@media print {
html,
body {
height: auto;
}
#map_canvas {
height: 650px;
}
}
<script src="https://maps.googleapis.com/maps/api/js"></script>
<div id="map_canvas"></div>