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<html xmlns="http://www.w3.org/1999/xhtml"> |
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<head> |
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<title>Custom Control 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 = 5; |
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var lat = 40; |
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var zoom = 5; |
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var map, layer; |
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|
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function init(){ |
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map = new OpenLayers.Map('map'); |
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layer = new OpenLayers.Layer.WMS( "OpenLayers WMS", |
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"http://labs.metacarta.com/wms/vmap0", {layers: 'basic'} ); |
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|
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var control = new OpenLayers.Control(); |
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OpenLayers.Util.extend(control, { |
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draw: function () { |
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|
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|
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this.box = new OpenLayers.Handler.Box( control, |
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{"done": this.notice}, |
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{keyMask: OpenLayers.Handler.MOD_SHIFT}); |
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this.box.activate(); |
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}, |
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|
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notice: function (bounds) { |
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var ll = map.getLonLatFromPixel(new OpenLayers.Pixel(bounds.left, bounds.bottom)); |
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var ur = map.getLonLatFromPixel(new OpenLayers.Pixel(bounds.right, bounds.top)); |
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alert(ll.lon.toFixed(4) + ", " + |
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ll.lat.toFixed(4) + ", " + |
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ur.lon.toFixed(4) + ", " + |
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ur.lat.toFixed(4)); |
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} |
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}); |
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|
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map.addLayer(layer); |
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map.addControl(control); |
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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">Custom Control Example</h1> |
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|
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<div id="tags"> |
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</div> |
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|
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<p id="shortdesc"> |
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Demonstrate the addition of a draggable rectangle to the OpenLayers window. |
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</p> |
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|
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<div id="map" class="smallmap"></div> |
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|
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<div id="docs"></div> |
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</body> |
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</html> |
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