openlayers/examples/outOfRangeMarkers.html

   1 <html xmlns="http://www.w3.org/1999/xhtml">
   2 <head>
   3     <title>Using maxResolution to control overlays</title>
   4     <link rel="stylesheet" href="../theme/default/style.css" type="text/css" />
   5     <link rel="stylesheet" href="style.css" type="text/css" />
   6     <style>
   7         #map {
   8             height: 350px;
   9         }
  10     </style>
  11       <!-- this gmaps key generated for http://openlayers.org/dev/ -->
  12     <script src='http://maps.google.com/maps?file=api&amp;v=2&amp;key=ABQIAAAAjpkAC9ePGem0lIq5XcMiuhR_wWLPFku8Ix9i2SXYRVK3e45q1BQUd_beF8dtzKET_EteAjPdGDwqpQ'></script>
  13     <!-- Localhost key -->
  14     <!-- <script src='http://maps.google.com/maps?file=api&amp;v=2&amp;key=ABQIAAAAjpkAC9ePGem0lIq5XcMiuhT2yXp_ZAY8_ufC3CFXhHIE1NvwkxTS6gjckBmeABOGXIUiOiZObZESPg'></script>-->
  15
  16     <script src="../lib/OpenLayers.js"></script>
  17     <script type="text/javascript">
  18         var map;
  19         function init(){
  20
  21             // Variables
  22             map = new OpenLayers.Map('map', {
  23                 controls: [
  24                     new OpenLayers.Control.PanZoomBar(),
  25                     new OpenLayers.Control.LayerSwitcher({'ascending':false}),
  26                     new OpenLayers.Control.MousePosition(),
  27                     new OpenLayers.Control.Navigation()
  28                 ]
  29             });
  30             var lon = 35;
  31             var lat = -6;
  32             var zoom = 6;
  33
  34
  35             // Map Layers
  36             var GMapsSat = new OpenLayers.Layer.Google( "Google Satellite" , {type: G_SATELLITE_MAP, 'maxZoomLevel':18} );
  37             var GMapsHybr = new OpenLayers.Layer.Google( "Google Hybrid" , {type: G_HYBRID_TYPE, 'maxZoomLevel':18} );
  38             var GMapsStreets = new OpenLayers.Layer.Google( "Google Steets" , {type: G_NORMAL_MAP, 'maxZoomLevel':18} );
  39             var MarkersLayer2 = new OpenLayers.Layer.Text( "Region info", {location: "outOfRangeMarkers.txt", maxResolution: 0.02});
  40
  41             // Add Layers
  42             map.addLayers([GMapsHybr, GMapsStreets, GMapsSat, MarkersLayer2]);
  43
  44             // Visual
  45             map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
  46             if (!map.getCenter()) map.zoomToMaxExtent();
  47         }
  48     </script>
  49  </head>
  50
  51
  52  <body onload="init()">
  53     <h3 id="title">Using maxResolution to control overlays</h3>
  54     <p id="shortdesc">
  55       See how to control the maximum resolution for a markers layer,
  56       causing it to not be displayed beyond a certain point.
  57     </p>
  58     <div id="map" class="smallmap"></div>
  59
  60   </body>
  61 </html>