OpenLayers OpenLayers

root/branches/openlayers/2.5/examples/buffer.html

Revision 4275, 1.4 kB (checked in by crschmidt, 1 year ago)

Use of Layer.Grid.buffer

Line 
1 <html xmlns="http://www.w3.org/1999/xhtml">
2   <head>
3     <style type="text/css">
4         #map {
5             width: 694px;
6             height: 464px;
7             border: 1px solid black;
8         }
9     </style>
10     <script src="../lib/OpenLayers.js"></script>
11     <script type="text/javascript">
12         var lon = 0;
13         var lat = 0;
14         var zoom = 2;
15         var map, layer;
16
17         function init(){
18             map = new OpenLayers.Map( 'map' );
19             layer = new OpenLayers.Layer.WMS( "0 buffer: OpenLayers WMS",
20                     "http://labs.metacarta.com/wms/vmap0",
21                     {layers: 'basic'}, {'buffer':0} );
22             map.addLayer(layer);
23             layer = new OpenLayers.Layer.WMS( "1 buffer: OpenLayers WMS",
24                     "http://labs.metacarta.com/wms/vmap0",
25                     {layers: 'basic'}, {'buffer':1} );
26             map.addLayer(layer);
27             layer = new OpenLayers.Layer.WMS( "4 buffer: OpenLayers WMS",
28                     "http://labs.metacarta.com/wms/vmap0",
29                     {layers: 'basic'}, {'buffer':4} );
30             map.addLayer(layer);
31             map.addControl(new OpenLayers.Control.LayerSwitcher())
32             map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
33         }
34     </script>
35   </head>
36   <body onload="init()">
37     <div id="map"></div>
38     <p>Use the buffer property to control how many tiles are included
39        outside the visible map area. Default is 2</p>
40   </body>
41 </html>
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