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1 <html xmlns="http://www.w3.org/1999/xhtml">
2     <head>
3         <title>OpenLayers BBOX Strategy Example</title>
4         <link rel="stylesheet" href="../theme/default/style.css" type="text/css" />
5         <link rel="stylesheet" href="style.css" type="text/css" />
6         <script src="../lib/OpenLayers.js"></script>
7         <script type="text/javascript">
8             var map, photos;
9             OpenLayers.ProxyHost = (window.location.host == "localhost") ?
10                 "/cgi-bin/proxy.cgi?url=" : "proxy.cgi?url=";
11         
12             function init() {
13                 map = new OpenLayers.Map('map', {
14                     restrictedExtent: new OpenLayers.Bounds(-180, -90, 180, 90)
15                 });
16                 var base = new OpenLayers.Layer.WMS("Imagery", 
17                     ["http://t1.hypercube.telascience.org/tiles?",
18                      "http://t2.hypercube.telascience.org/tiles?",
19                      "http://t3.hypercube.telascience.org/tiles?",
20                      "http://t4.hypercube.telascience.org/tiles?"], 
21                     {layers: 'landsat7'}
22                 );
23
24                 var style = new OpenLayers.Style({
25                     externalGraphic: "${img_url}",
26                     pointRadius: 30
27                 });
28
29                 photos = new OpenLayers.Layer.Vector("Photos", {
30                     strategies: [new OpenLayers.Strategy.BBOX()],
31                     protocol: new OpenLayers.Protocol.HTTP({
32                         url: "http://labs.metacarta.com/flickrbrowse/flickr.py/flickr",
33                         params: {
34                             format: "WFS",
35                             sort: "interestingness-desc",
36                             service: "WFS",
37                             request: "GetFeatures",
38                             srs: "EPSG:4326",
39                             maxfeatures: 10
40                         },
41                         format: new OpenLayers.Format.GML()
42                     }),
43                     styleMap: new OpenLayers.StyleMap(style)
44                 });
45
46                 map.addLayers([base, photos]);
47                 map.setCenter(new OpenLayers.LonLat(-116.45, 35.42), 5);
48             }
49             
50         </script>
51     </head>
52     <body onload="init()">
53         <h1 id="title">BBOX Strategy Example</h1>
54         <p id="shortdesc">
55             Uses a BBOX strategy to request features within a bounding box.
56         </p>
57         <div id="map" class="smallmap"></div>
58         <div id="docs">
59             <p>The BBOX strategy requests data within a bounding box.  When the
60             previously requested data bounds are invalidated (by browsing to
61             some area not covered by those bounds), another request for data
62             is issued.</p>
63         </div>
64     </body>
65 </html>