[OpenLayers-Users] How can I display a map with a position changing marker.

[Kris Geusebroek]

Hi,


Yes that's the whole point.
The lon, lan will be in your db, you configure your datastore and layer
in geoserver
In your openlayers based client you configure your layers as a vector
layer with bbox strategy and wfs protocol
Where the wfs protocol must be configured to connect to the right layer
and geoserver instance.

Something like this:

	var wfsLayerOptions = {
		url: GEOSERVER_WFS_URL,//something like
http://localhost:8080/geoserver/wfs
		geometryName: "GEOMETRY",
		featureNS: FEATURENAMESPACE,//something like
http://www.blah.org/topp
		version: "1.0.0"
	};

	var layerOptions = {
		filter: filter,
		projection: RDPROJECTION
	};
	
	wfsLayer = new OpenLayers.Layer.Vector("wfsLayerName", 
		OpenLayers.Util.extend({
			styleMap: styles[0],
			strategies: [
				new OpenLayers.Strategy.BBOX(),
				new OpenLayers.Strategy.Cluster({
					threshold: 2, 
					distance: 30
				})
			],
			protocol: new OpenLayers.Protocol.WFS(
				OpenLayers.Util.extend({
					featureType:
'LAYER_NAME_IN_GEOSERVER'
				}, wfsLayerOptions)
			)
		}, layerOptions)
	);
	
Cheers Kris