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<html xmlns="http://www.w3.org/1999/xhtml"> |
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<head> |
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<title>Tiles Loading Acceptance Test</title> |
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<style type="text/css"> |
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body { |
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font-size: 0.8em; |
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} |
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p { |
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padding-top: 1em; |
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} |
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#map { |
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margin: 1em; |
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float: left; |
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width: 512px; |
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height: 512px; |
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} |
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</style> |
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|
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<script src='http://maps.google.com/maps?file=api&v=2.82&key=ABQIAAAAjpkAC9ePGem0lIq5XcMiuhR_wWLPFku8Ix9i2SXYRVK3e45q1BQUd_beF8dtzKET_EteAjPdGDwqpQ'></script> |
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<script src="../../lib/OpenLayers.js"></script> |
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<script type="text/javascript"> |
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// make map available for easy debugging |
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var map; |
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|
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// avoid pink tiles |
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OpenLayers.IMAGE_RELOAD_ATTEMPTS = 3; |
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OpenLayers.Util.onImageLoadErrorColor = "transparent"; |
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|
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function init(){ |
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var options = { |
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controls: [], |
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projection: "EPSG:900913", |
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units: "m", |
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maxResolution: 156543.0339, |
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maxExtent: new OpenLayers.Bounds(-20037508, -20037508, |
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20037508, 20037508.34) |
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}; |
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map = new OpenLayers.Map('map', options); |
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// create Google Mercator layers |
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var gmap = new OpenLayers.Layer.Google( |
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"Google Streets", |
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{'sphericalMercator': true} |
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); |
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// create WMS layer |
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var wmsMaxResolution = 78271.51695; |
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var wms = new OpenLayers.Layer.WMS( |
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"World Map", |
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"http://world.freemap.in/tiles/", |
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{'layers': 'factbook-overlay', 'format':'png'}, |
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{ |
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'opacity': 0.4, |
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'isBaseLayer': false, |
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'wrapDateLine': true, |
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'buffer': 0, |
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'maxResolution' : wmsMaxResolution |
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} |
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); |
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map.addLayers([gmap, wms]); |
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map.addControl(new OpenLayers.Control.Navigation()); |
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map.addControl(new OpenLayers.Control.LayerSwitcher()); |
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map.addControl(new OpenLayers.Control.PanZoomBar()); |
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|
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function onLayerChanged() { |
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var html = '<p>WMS Layer state - in range: ' |
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+ this.inRange |
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+ ', visibility: ' |
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+ this.visibility; |
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+ '</p>'; |
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document.getElementById('layerstate').innerHTML = html; |
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} |
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map.events.register('changelayer', wms, onLayerChanged); |
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|
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function onTileLoaded() { |
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var html = '<p>Message: '; |
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if (this.numLoadingTiles > 0) { |
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html += 'Loading tiles...'; |
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} else { |
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html += 'Done loading tiles'; |
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} |
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html += '</p>'; |
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document.getElementById('tilesloading').innerHTML = html; |
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} |
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wms.events.register('tileloaded', wms, onTileLoaded); |
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|
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map.zoomToMaxExtent() |
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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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<div id="map"></div> |
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<p> |
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|
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<b>Test 0</b> : at the initial zoom the WMS layer is in range, you should |
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therefore see the 'Loading tiles...' message when loading the page for |
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the first time. |
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|
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</p> |
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<p> |
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|
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<b>Test 1</b> : If you zoom out by one level (using the zoombar), the WMS |
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layer becomes out of range. No tile should be loaded so you shouldn't see |
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the 'Loading tiles...' message. |
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|
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</p> |
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<p> |
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|
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<b>Test 2</b> : Zoom in by one level to go back to initial state (the WMS |
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is back). Open the layer switcher and turn off the WMS layer. No tile |
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should be loaded so you shouldn't see the 'Loading tiles...' message. |
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|
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</p> |
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<p> |
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|
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<b>Test 3</b> : Keep the WMS layer turned off in the layer switcher. Zoom |
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out by one level again. The layer is both invisible and out of range, so |
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you shouldn't see the 'Loading tiles...' message. |
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|
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</p> |
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<div id="layerstate"><p>WMS Layer state - in range: true, visibility: true</p></div> |
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<div id="tilesloading"><p>Message:</p></div> |
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</body> |
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</html> |
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