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  • Committer: larshelge at gmail
  • Date: 2009-03-03 16:46:36 UTC
  • Revision ID: larshelge@gmail.com-20090303164636-2sjlrquo7ib1gf7r
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gis/dhis-gis-geostat/mfbase/openlayers/examples/buffer.html
 
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<html xmlns="http://www.w3.org/1999/xhtml">
 
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    <head>
 
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        <title>OpenLayers Buffer Example</title>
 
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        <link rel="stylesheet" href="../theme/default/style.css" type="text/css" />
 
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        <link rel="stylesheet" href="style.css" type="text/css" />
 
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        <script src="../lib/OpenLayers.js"></script>
 
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        <script type="text/javascript">
 
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            var lon = 0;
 
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            var lat = 0;
 
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            var zoom = 2;
 
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            var map, layer;
 
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            function init(){
 
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                map = new OpenLayers.Map( 'map' );
 
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                layer = new OpenLayers.Layer.WMS( "0 buffer: OpenLayers WMS",
 
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                        "http://labs.metacarta.com/wms/vmap0",
 
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                        {layers: 'basic'}, {'buffer':0} );
 
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                map.addLayer(layer);
 
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                layer = new OpenLayers.Layer.WMS( "1 buffer: OpenLayers WMS",
 
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                        "http://labs.metacarta.com/wms/vmap0",
 
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                        {layers: 'basic'}, {'buffer':1} );
 
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                map.addLayer(layer);
 
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                layer = new OpenLayers.Layer.WMS( "4 buffer: OpenLayers WMS",
 
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                        "http://labs.metacarta.com/wms/vmap0",
 
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                        {layers: 'basic'}, {'buffer':4} );
 
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                map.addLayer(layer);
 
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                map.addControl(new OpenLayers.Control.LayerSwitcher())
 
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                map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
 
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            }
 
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        </script>
 
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    </head>
 
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    <body onload="init()">
 
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        <h1 id="title">Buffer Example</h1>
 
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        <div id="tags">
 
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        </div>
 
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        <p id="shortdesc">
 
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            This example shows the use of the buffer layer option for any layer that inherits from OpenLayers.Layer.Grid.
 
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        </p>
 
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        <div id="map" class="smallmap"></div>
 
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        <div id="docs">
 
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            Use the buffer property to control how many tiles are included
 
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            outside the visible map area. Default is 2.
 
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        </div>
 
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    </body>
 
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</html>