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+<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>Overview Map Example</title>
+ <link rel="stylesheet" href="../theme/default/style.css" type="text/css">
+ <link rel="stylesheet" href="style.css" type="text/css">
+ <script src="../lib/OpenLayers.js" type="text/javascript"></script>
+ <style>
+ #map1 {
+ width: 500px;
+ height: 300px;
+ border: 1px solid gray;
+ }
+ #map2 {
+ width: 500px;
+ height: 300px;
+ border: 1px solid gray;
+ }
+ </style>
+ </head>
+ <body>
+ <h1 id="title">Overview Map</h1>
+
+ <div id="tags">
+ overview, mapOptions, basic
+ </div>
+ <p id="shortdesc">
+ Enable a small Overview Map that moves/interacts with your main map.
+ </p>
+ <div id="map1"></div>
+ <p>The above map has an overview map control that is created with
+ the default options. Much like a regular map, the map contained by
+ the overview map control defaults to a geographic projection.</p>
+ <div id="map2"></div>
+ <p>The second map has an overview map control that is created with
+ non-default options. In this case, the mapOptions property of the
+ control has been set to use non-default projection related properties,
+ and the layers property has been set to use a layer different from the main
+ map. In addition, any other properties of the overview map control can be
+ set in this way.</p>
+ <script defer="defer" type="text/javascript">
+
+ // set up some layers
+
+ var ol = new OpenLayers.Layer.WMS(
+ "OpenLayers WMS",
+ "http://vmap0.tiles.osgeo.org/wms/vmap0",
+ {layers: 'basic'}
+ );
+
+ var jpl = new OpenLayers.Layer.WMS(
+ "NASA Global Mosaic",
+ "http://t1.hypercube.telascience.org/cgi-bin/landsat7",
+ {layers: "landsat7"}
+ );
+
+ // A clone of the above layer that we will use as overview for map2.
+ // We need to clone jpl before the it gets added to a map, so the
+ // clone can have its own maxExtent and maxResolution instead of
+ // getting these settings initialized from map1.
+ var jplOverview = jpl.clone();
+
+ // A more detailled layer of Manhattan for map2
+ var ny = new OpenLayers.Layer.WMS(
+ "Manhattan",
+ "http://demo.opengeo.org/geoserver/wms",
+ {
+ layers: 'tiger-ny',
+ format: 'image/png'
+ }
+ );
+
+ // create the top map (with default overview map control)
+ var map1 = new OpenLayers.Map('map1');
+
+ map1.addLayers([ol, jpl]);
+ map1.addControl(new OpenLayers.Control.LayerSwitcher());
+
+ // create an overview map control with the default options
+ var overview1 = new OpenLayers.Control.OverviewMap({
+ maximized: true,
+ maximizeTitle: 'Show the overview map',
+ minimizeTitle: 'Hide the overview map'
+ });
+ map1.addControl(overview1);
+
+ map1.setCenter(new OpenLayers.LonLat(0, 0), 2);
+
+ // create the bottom map (with advanced overview map control)
+ var mapOptions = {
+ maxExtent: new OpenLayers.Bounds(-8242894.927728, 4965204.031195,
+ -8227290.161511, 4994963.723637),
+ maxResolution: 116.24879860156216,
+ projection: "EPSG:900913"
+ };
+
+ var map2 = new OpenLayers.Map('map2', mapOptions);
+
+ map2.addLayers([ny]);
+
+ // create an overview map control with non-default options
+ var controlOptions = {
+ maximized: true,
+ mapOptions: OpenLayers.Util.extend(mapOptions, {
+ maxResolution: 156543.0339,
+ maxExtent: new OpenLayers.Bounds(-20037508.34, -20037508.34,
+ 20037508.34, 20037508.34)
+ }),
+ layers: [jplOverview]
+ };
+ var overview2 = new OpenLayers.Control.OverviewMap(controlOptions);
+ map2.addControl(overview2);
+
+ map2.setCenter(new OpenLayers.LonLat(-8233165.3575055, 4980298.21113769), 3);
+
+ </script>
+ </body>
+</html>