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<html xmlns="http://www.w3.org/1999/xhtml"> |
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<head> |
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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 map; |
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function init() { |
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map = new OpenLayers.Map('map', |
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{controls: [new OpenLayers.Control.Navigation(), |
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new OpenLayers.Control.PanZoomBar()], |
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numZoomLevels: 10 }); |
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var wms = new OpenLayers.Layer.WMS( |
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"OpenLayers WMS", |
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"http://labs.metacarta.com/wms/vmap0", |
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{layers: 'basic'} |
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); |
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map.addLayers([wms]); |
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map.events.register("moveend", null, displayZoom); |
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map.zoomToMaxExtent(); |
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update(document.getElementById("fractional")); |
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} |
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function displayZoom() { |
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document.getElementById("zoom").innerHTML = map.zoom.toFixed(4); |
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} |
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function update(input) { |
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map.fractionalZoom = input.checked; |
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map.zoomTo(Math.round(map.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">Fractional Zoom 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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Shows the use of a map with fractional (or non-discrete) zoom levels. |
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</p> |
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<div id="map" class="smallmap"></div> |
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<input type="checkbox" name="fractional" |
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id="fractional" checked="checked" onclick="update(this)" /> |
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<label for="fractional">Fractional Zoom</label> |
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(zoom: <span id="zoom"></span>) |
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<br /><br /> |
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<div id="docs"> |
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<p> |
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Setting the map.fractionalZoom property to true allows zooming to |
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an arbitrary level (between the min and max resolutions). This |
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can be demonstrated by shift-dragging a box to zoom to an arbitrary |
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extent. |
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</p> |
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</div> |
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</body> |
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</html> |
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