[OpenLayers-Users] WFS Request not triggered without setCenter

[Hajo Kliemeck]

hi,

is there a possibility to trigger a wfs layer request without calling
setcenter? my current solution is running, but i want to avoid the
setcenter() with lat=0, lon=0 to trigger the calculation of the center
with wfs features.

<script type="text/javascript">
	var map;
	var geographic = new OpenLayers.Projection("EPSG:4326");
	var mercator = new OpenLayers.Projection("EPSG:900913");
	function loadMap() {
		var world = new OpenLayers.Bounds(-180, -89, 180, 89).transform(
			geographic, mercator
		);

		var options = {
			projection: mercator,
			displayProjection: geographic,
			units: "m",
			numZoomLevels: 20,
			maxExtent: world,
			maxResolution: "auto"
		};

		// Create the map object
		map = new OpenLayers.Map('map', options);
		map.addControl(new OpenLayers.Control.LayerSwitcher());

		OpenLayers.loadURL("http://localhost:8080/.......", null, null, loadSLD);
	}

	function loadSLD(req) {
		var format = new OpenLayers.Format.SLD();
		var sld = format.read(req.responseXML || req.responseText);
		var style = sld.namedLayers["main"].userStyles[0];

		// create Google Maps layer
		var gmap = new OpenLayers.Layer.Google(
			"Google Maps", // the default
			{'sphericalMercator': true, numZoomLevels: 20}
		);

		// create Google Satellite layer
		var gsat = new OpenLayers.Layer.Google(
			"Google Maps Satellite",
			{type: G_SATELLITE_MAP, 'sphericalMercator': true, numZoomLevels: 20}
		);

		// create WFS layer
		var wfslayer = new OpenLayers.Layer.Vector("WFS", {
			styleMap: new OpenLayers.StyleMap(style),
			strategies: [new OpenLayers.Strategy.BBOX()],
			protocol: new OpenLayers.Protocol.WFS({
				url:  "http://localhost:8080/........",
				featureType: "xy",
				featureNS: "http://xy",
				srsName: "EPSG:900913",
				version: "1.1.0"
			})
		});

		// calculate the zoom and center
		wfslayer.events.register("loadend", wfslayer, function (e) {
			var objectFeatures = this.features;
			if ( objectFeatures.length != 0 ) {
				var bounds = wfslayer.getDataExtent();
				map.zoomToExtent(bounds);
			}
		});

		map.addLayers([gmap, gsat, wfslayer]);

		// trigger wfs request
		map.setCenter(new OpenLayers.LonLat(0, 0));
	}
</script>
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