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<html xmlns="http://www.w3.org/1999/xhtml"> |
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<head> |
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<title>Animated Panning of the Map via map.panTo</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 map, layer, running = false; |
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|
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OpenLayers.Control.Click = OpenLayers.Class(OpenLayers.Control, { |
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defaultHandlerOptions: { |
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'single': true, |
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'delay': 200 |
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}, |
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|
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initialize: function(options) { |
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this.handlerOptions = OpenLayers.Util.extend( |
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{}, this.defaultHandlerOptions |
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); |
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OpenLayers.Control.prototype.initialize.apply( |
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this, arguments |
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); |
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this.handler = new OpenLayers.Handler.Click( |
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this, { |
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'click': this.onClick |
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}, this.handlerOptions |
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); |
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}, |
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|
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onClick: function(evt) { |
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map.panTo(map.getLonLatFromPixel(evt.xy)); |
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} |
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|
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}); |
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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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map.addLayer(layer); |
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map.zoomToMaxExtent(); |
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var click = new OpenLayers.Control.Click(); |
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map.addControl(click); |
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click.activate(); |
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map.addControl(new OpenLayers.Control.OverviewMap()); |
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|
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map2 = new OpenLayers.Map('map2', {'panMethod': null} ); |
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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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map2.addLayer(layer); |
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map2.zoomToMaxExtent(); |
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} |
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|
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function setCenterInterval() { |
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if (!running) { |
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setCenter(); |
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running = setInterval('setCenter()', 500); |
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} else { |
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clearInterval(running); |
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running = false; |
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} |
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} |
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|
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function setCenter() { |
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var lon = Math.random() * 360 - 180; |
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var lat = Math.random() * 180 - 90; |
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var lonlat = new OpenLayers.LonLat(lon, lat); |
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map.panTo(lonlat); |
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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">map.panTo Example</h1> |
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<div id="tags">map.panTo</div> |
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<div id="shortdesc">Show animated panning effects in the map</div> |
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<div id="map" class="smallmap"></div> |
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<div id="docs"> |
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<p>This is an example of transition effects. If the new random center is in the current extent, the map will pan smoothly. <br /> |
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The random selection will continue until you press it again. Additionally, you can single click in the map to pan smoothly |
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to that area, or use the pan control to pan smoothly. |
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</p> |
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</div> |
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<button onclick="setCenterInterval()">Start/stop random recenter</button> |
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<div id="map2" class="smallmap"></div> |
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<div> |
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<p>To turn off Animated Panning, create a map with an panMethod set to |
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null. </p> |
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</div> |
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</body> |
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</html> |
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