It's a example from
Google Code Playground for Weather Map.
<!--
You are free to copy and use this sample in accordance with the terms of the
Apache license (http://www.apache.org/licenses/LICENSE-2.0.html)
-->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>Google Maps API Sample</title>
<script src="http://maps.google.com/maps?file=api&v=2&sensor=false&key=ABQIAAAAuPsJpk3MBtDpJ4G8cqBnjRRaGTYH6UMl8mADNa0YKuWNNa8VNxQCzVBXTx2DYyXGsTOxpWhvIG7Djw" type="text/javascript"></script>
<script src="http://gmaps-utility-library.googlecode.com/svn/trunk/markermanager/release/src/markermanager.js"></script>
<script type="text/javascript">
var IMAGES = [ "sun", "rain", "snow", "storm" ];
var ICONS = [];
var map = null;
var mgr = null;
function setupMap() {
if (GBrowserIsCompatible()) {
map = new GMap2(document.getElementById("map"));
map.addControl(new GLargeMapControl());
map.setCenter(new GLatLng(48.25, 11.00), 4);
map.enableDoubleClickZoom();
window.setTimeout(setupWeatherMarkers, 0);
}
}
function getWeatherIcon() {
var i = Math.floor(IMAGES.length*Math.random());
if (!ICONS[i]) {
var icon = new GIcon();
icon.image = "http://gmaps-utility-library.googlecode.com/svn/trunk/markermanager/release/examples/images/"
+ IMAGES[i] + ".png";
icon.iconAnchor = new GPoint(16, 16);
icon.infoWindowAnchor = new GPoint(16, 0);
icon.iconSize = new GSize(32, 32);
icon.shadow = "http://gmaps-utility-library.googlecode.com/svn/trunk/markermanager/release/examples/images/"
+ IMAGES[i] + "-shadow.png";
icon.shadowSize = new GSize(59, 32);
ICONS[i] = icon;
}
return ICONS[i];
}
function getRandomPoint() {
var lat = 48.25 + (Math.random() - 0.5)*14.5;
var lng = 11.00 + (Math.random() - 0.5)*36.0;
return new GLatLng(Math.round(lat*10)/10, Math.round(lng*10)/10);
}
function getWeatherMarkers(n) {
var batch = [];
for (var i = 0; i < n; ++i) {
batch.push(new GMarker(getRandomPoint(), { icon: getWeatherIcon() }));
}
return batch;
}
function setupWeatherMarkers() {
mgr = new MarkerManager(map);
mgr.addMarkers(getWeatherMarkers(20), 3);
mgr.addMarkers(getWeatherMarkers(200), 6);
mgr.addMarkers(getWeatherMarkers(1000), 8);
mgr.refresh();
}
</script>
</head>
<body onload="setupMap()" onunload="GUnload()" style="font-family: Arial;border: 0 none;">
<div id="map" style="margin: 5px auto; width: 650px; height: 400px"></div>
<div style="text-align: center; font-size: large;">
Random Weather Map
</div>
</body>
</html>
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