[OpenLayers-Users] Cluster Layers - Correct placemark format?

[Allan Henderson]

Hi Christopher,

Here's the code:

<script type="text/javascript">
		window.onload = function(){
var lon = -2.900000;
var lat = 55.160000;
var proj = new OpenLayers.Projection("EPSG:4326");
var center = new OpenLayers.LonLat(lon, lat);
var zoom = 4;
var map, layer;
var src = new OpenLayers.Projection('EPSG:4326');
var dest = new OpenLayers.Projection('EPSG:900913');
var marker_style = ({
	'pointRadius' : "${radius}",
	'fillColor' : '#9ED652',
	'fillOpacity' : 0.8,
	'strokeColor' : '#ffffff',
	'strokeWidth' : '1',
	'strokeOpacity' : 0.8
	}, {
        context: {
           radius: function(feature) {
               return Math.min(feature.attributes.count, 7) + 3;
           }
        }
});

var options = {
	'projection': new OpenLayers.Projection("EPSG:900913"),
	'displayProjection': new OpenLayers.Projection("EPSG:4326"),
     'units': "m",
     'maxResolution': 156543.0339,
	'maxExtent' : new  
OpenLayers.Bounds(-20037508,-20037508,20037508,20037508),
	'controls':[new OpenLayers.Control.Navigation(), new  
OpenLayers.Control.ZoomPanel()],
	'numZoomLevels' : 18
	};
	// base map
	map = new OpenLayers.Map('map', options);
	// - MS Virtual Earth Layer
	var baselayer = new OpenLayers.Layer.VirtualEarth("Virtual Earth", 
{ 'type': VEMapStyle.Hybrid, "sphericalMercator": true});
	map.addLayer(baselayer);
	
	// Controls for the map
	map.addControl(new OpenLayers.Control.LayerSwitcher());
	var layermarkers = new OpenLayers.Layer.Vector("Markers",{
                     strategies: [
                     	new OpenLayers.Strategy.Fixed(),
						new OpenLayers.Strategy.Cluster()
					],
					protocol: new OpenLayers.Protocol.HTTP({
					url: "kml/placemarks.kml",
						format: new OpenLayers.Format.KML({
             				internalProjection: new OpenLayers.Projection("ESPG: 
900913"),
     						externalProjection: new OpenLayers.Projection("ESPG:4326")
        					})
       				}),
       				styleMap:new OpenLayers.StyleMap({
         			"default": marker_style,
         				"select": {
             				fillColor: "#8aeeef",
             				strokeColor: "#32a8a9"
         				}
        				})
	});
	map.addLayer(layermarkers);
	center.transform(proj, map.getProjectionObject());
	map.zoomToMaxExtent();
	// Vector Layers for the Campsites
//
	map.setCenter(center, zoom);
	
}		
		</script>

Thanks!

Allan

On 24 Nov 2008, at 15:45, Christopher Schmidt wrote:

> On Mon, Nov 24, 2008 at 03:44:40PM +0000, Allan Henderson wrote:
>> Hi there,
>>
>> I'm trying to implement a Cluster layer from a KML feed.  The feed on
>> it's own is working fine but all falls apart when I try a cluster
>> strategy.  So I'm thinking this method doesn't work
>
> It should. Are you using a strategy.Fixed? Can you share your code?
>
> Regards,
> -- 
> Christopher Schmidt
> MetaCarta