overviewmap.html 1.26 KB
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
        "http://www.w3.org/TR/2000/REC-xhtml1-20000126/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Overview Map Example</title>
<script src="../lib/OpenLayers.js" type="text/javascript"></script>
<style>
#map{
    width:100%; 
    height:500px;
    border:1px solid;
}
</style>
</head>
<body>
  <div id="map"></div>
  <script defer="defer" type="text/javascript">
    var map = new OpenLayers.Map('map');
    // my city
    var constantina = new OpenLayers.LonLat(-5.6165,37.8623);
    var wms = new OpenLayers.Layer.WMS( "OpenLayers WMS", 
        "http://labs.metacarta.com/wms/vmap0", {layers: 'basic'} );
    var nasa_wms = new OpenLayers.Layer.WMS( "NASA Global Mosaic", 
        "http://wms.jpl.nasa.gov/wms.cgi", {layers: "modis,global_mosaic"} );

    map.addLayers([    
        nasa_wms,
        wms
    ]);
    
    map.addControl(new OpenLayers.Control.LayerSwitcher());
    
    var options = {
      layers: [wms.clone()],
      minRatio: 8,
      maxRatio: 128
    };
    var overview = new OpenLayers.Control.OverviewMap(options);
        
    map.addControl(overview);
    
    map.setCenter(constantina, 4);
    
    overview.maximizeControl();    
  </script>
</body>
</html>