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diff --git a/misc/openlayers/examples/clientzoom.html b/misc/openlayers/examples/clientzoom.html new file mode 100644 index 0000000..c32c7c1 --- /dev/null +++ b/misc/openlayers/examples/clientzoom.html @@ -0,0 +1,72 @@ +<!DOCTYPE html> +<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>OpenLayers Client Zoom 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/Firebug/firebug.js"></script> + <script src="../lib/OpenLayers.js"></script> + <script src="clientzoom.js"></script> + <style> + .olControlAttribution { + bottom: 5px; + } + #map { + width: 600px; + height: 400px; + } + </style> + </head> + <body onload="init();"> + <h1 id="title">Client Zoom</h1> + <div id="tags"> + client zoom continuous zooming + </div> + <p id="shortdesc"> + + This example demonstrates the <strong>"client zoom"</strong> + functionality, where OpenLayers stretches the layer div when the + resolution is not supported by that layer's tile service. + + </p> + + <div id="map"></div> + + <div id="docs"> + + <p> + + The map of this example is configured with 22 resolutions, while + the OSM tile server supports the first 19 resolutions only. When + the zoom level is 19, 20 or 21 "client zoom" is applied to the OSM + layer, i.e. the OSM layer div is stretched as necessary. The map's + initial zoom is 18. So if you zoom in using the zoom bar's "+" + button you'll effectively trigger "client zoom". + + </p> + + <p> + + For demonstration purpose the map of this example has + <code>fractionalZoom</code> set to true. So "client zoom" also + applies if you choose arbitrary zoom levels using the slider of the + zoom bar, or shift-drag boxes to zoom to arbitrary extents. + "client zoom" therefore allows continous zooming for tiled layers. + + </p> + + <p> + + Enabling "client zoom" on a layer is done by passing + <code>serverResolutions</code> to the layer constructor. + <code>serverResolutions</code> is the list of resolutions supported + by the tile service. See the <a href="clientzoom.js" + target="_blank"> clientzoom.js source</a>. + + </p> + </div> + </body> +</html> |