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Adding an option to avoid duplicate attribution.

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Thanks Marc Jansen for this nice contribution.  Without wanting
to gush, I think this should be a model contribution because:

 1. it is a simple change
 2. with a nice example that clearly demonstrates the benefit
 3. it includes tests!
 4. and Marc wrote a note to the dev list with links to the ticket

r = me (closes #2266)



git-svn-id: http://svn.openlayers.org/trunk/openlayers@9720 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
Tim Schaub
2009-10-06 18:46:06 +00:00
parent 11b38e5419
commit d1cecf3be1
3 changed files with 110 additions and 2 deletions
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78
examples/attribution-eliminated-duplicates.html Normal file
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<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>OpenLayers Attribution Example (attribute eliminateDuplicates)</title>
<link rel="stylesheet" href="../theme/default/style.css" type="text/css" />
<link rel="stylesheet" href="style.css" type="text/css" />
<script src="../lib/OpenLayers.js"></script>
<script type="text/javascript">
// making this a global variable so that it is accessible for
// debugging/inspecting in Firebug
var map = null;
function init(){
map = new OpenLayers.Map('map', {controls: []});
map2 = new OpenLayers.Map('map2', {controls: []});
var ol_wms = new OpenLayers.Layer.WMS(
"OpenLayers WMS",
"http://labs.metacarta.com/wms/vmap0",
{layers: 'basic'},
{attribution: '&copy; MetaCarta'}
);
var ol_wms2 = new OpenLayers.Layer.WMS(
"OpenLayers WMS",
"http://labs.metacarta.com/wms/vmap0",
{layers: 'basic', transparent: 'true'},
{attribution: '&copy; MetaCarta'}
);
var ol_wms3 = new OpenLayers.Layer.WMS(
"OpenLayers WMS",
"http://labs.metacarta.com/wms/vmap0",
{layers: 'basic', transparent: 'true'},
{attribution: '&copy; other company'}
);
var ol_wms4 = new OpenLayers.Layer.WMS(
"OpenLayers WMS",
"http://labs.metacarta.com/wms/vmap0",
{layers: 'basic', transparent: 'true'},
{attribution: '&copy; other company'}
);
var ol_wms5 = new OpenLayers.Layer.WMS(
"OpenLayers WMS",
"http://labs.metacarta.com/wms/vmap0",
{layers: 'basic', transparent: 'true'},
{attribution: '&copy; MetaCarta'}
);
map.addLayers([ol_wms, ol_wms2, ol_wms3, ol_wms4, ol_wms5]);
map2.addLayers([ol_wms.clone(), ol_wms2.clone(), ol_wms3.clone(), ol_wms4.clone(), ol_wms5.clone()]);
var attrWithDuplicates = new OpenLayers.Control.Attribution();
var attrWithoutDuplicates = new OpenLayers.Control.Attribution( {
eliminateDuplicates: true
} );
map.addControl(attrWithDuplicates);
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.zoomToMaxExtent();
map2.addControl(attrWithoutDuplicates);
map2.addControl(new OpenLayers.Control.LayerSwitcher());
map2.zoomToMaxExtent();
}
</script>
</head>
<body onload="init()">
<h1 id="title">OpenLayers Attribution Example (attribute <code>eliminateDuplicates</code>)</h1>
<div id="tags"></div>
<p id="shortdesc">
Demonstrates the use of the attribute <code>eliminateDuplicates</code> for Attribution-controls
</p>
<h2>Standard Usage of the control</h2>
<div id="map" class="smallmap"></div>
<h2>Use the attribute <code>eliminateDuplicates</code> to get rid of redundant Information</h2>
<div id="map2" class="smallmap"></div>
<div id="docs"></div>
</body>
</html>