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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
<meta name="apple-mobile-web-app-capable" content="yes">
<title>Resize a Marker</title>
<link rel="stylesheet" href="openlayers/theme/default/style.css" type="text/css">
<link rel="stylesheet" href="style.css" type="text/css">
<script src="openlayers/OpenLayers.js"></script>
<script type="text/javascript">
var map, layer;
var size, icon;
function init(){
map = new OpenLayers.Map('map');
layer = new OpenLayers.Layer.WMS( "OpenLayers WMS",
"http://vmap0.tiles.osgeo.org/wms/vmap0", {layers: 'basic'} );
map.addLayer(layer);
var markers = new OpenLayers.Layer.Markers( "Markers" );
map.addLayer(markers);
size = new OpenLayers.Size(21, 25);
calculateOffset = function(size) {
return new OpenLayers.Pixel(-(size.w/2), -size.h); };
icon = new OpenLayers.Icon(
'http://www.openlayers.org/dev/img/marker.png',
size, null, calculateOffset);
markers.addMarker(
new OpenLayers.Marker(new OpenLayers.LonLat(-71,40), icon));
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.zoomToMaxExtent();
}
function resize() {
size = new OpenLayers.Size(size.w + 10, size.h + 10);
icon.setSize(size);
}
</script>
</head>
<body onload="init()">
<h1 id="title">Resize a Marker</h1>
<div id="tags">
animation, resizing, style, size
</div>
<div id="shortdesc">Dynamically resize a marker</div>
<div id="map" class="smallmap"></div>
<div id="docs">
<p>This example shows how to create a OpenLayers.Layer.Markers layer,
add an icon, put it into a marker, and add the marker to the layer.
Once the marker has been added it is possible to use setSize() on the
icon in order to resize the marker.</p>
</div>
<div style="background-color:purple" onclick="resize()"> click to resize marker</div>
</body>
</html>
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