[Users] How to add WFS and local Vector data ?

[Bart van den Eijnden]

Stefan,

your web application, is it running on port 8080 as well? Or 80?

If the ports differ, you need to include the AJAX override in your GeoExt build and set OpenLayers.ProxyHost to your proxy:

http://www.geoext.org/lib/overrides/override-ext-ajax.html

Also, featureType is without the prefix. I can't imagine that featureNS is empty, it should be a URI! Check your geoserver output for xmlns attributes.

Best regards,
Bart

-- 
Looking for flexible support on OpenLayers or GeoExt? Please check out http://www.osgis.nl/support.html

Bart van den Eijnden
OSGIS
bartvde at osgis.nl

On Aug 12, 2010, at 8:34 AM, Stefan Schwarzer wrote:

> Hmm... searched quite a bit on the net, found a couple of WFS examples (again), and did this to add a WFS layer:
> 
> 
> 
> var wfsLayer = new OpenLayers.Layer.Vector("vector", {
> 	strategies: [new OpenLayers.Strategy.Fixed()],
> 	protocol: new OpenLayers.Protocol.WFS({
> 		url: "http://myserver:8080/geoserver/wfs?service=wfs",
> 		version: "1.1.0",
> 		featureType: "bafu_ind:mylayer",
> 		featureNS: "",
> 		geometryName: "SHAPE", 
> 		srsName: "EPSG:21781"
> 	}),
> 	projection: new OpenLayers.Projection("EPSG:4326")
> });
> 
> var store = new GeoExt.data.FeatureStore({
>    fields: [
>        {name: "name", type: "string"}
>    ],
>    layer: wfsLayer
> });
> 
> 
> 
> But it's still not working. It's not doing a connection, it seems... Is anything wrong with that code?
> 
> Thanks for any hints!
> 
> Stef
> 
> 
> On Aug 10, 2010, at 12:24 PM, Stefan Schwarzer wrote:
> 
>> Hi there,
>> 
>> I am trying to use different services - and trying to figure out which one would be best to use -, including locally stored KML as well as WFS layers.
>> 
>> Now, I am not really getting through with it. I've looked around how the examples work, but as soon as it goes down to adapting my existing script, I don't succeed. And I guess this is (partially) due to the fact that I haven't really understood the concepts behind....
>> 
>> What I have so far is this:
>> 
>> ______________________________________________________________________
>> 
>> 	    // create map instance
>> 	    var map = new OpenLayers.Map();
>> 
>> 
>> 		// get background WMS layer
>> 	        var wmsLayer = new OpenLayers.Layer.WMS(
>> 	        "Global Imagery",
>> 	        "http://maps.opengeo.org/geowebcache/service/wms",
>> 	        {
>> 	        	layers: "bluemarble"
>> 	        },
>> 	        {
>> 		        isBaseLayer: true,
>> 		        displayInLayerSwitcher: true
>> 			}
>> 	    );
>> 
>> 
>> 		// get raster 100m WMS layer
>> 	        var wmsLayer100m = new OpenLayers.Layer.WMS(
>> 	        "Wohnfläche Raster 100m",
>> 	        "http://212.203.125.185:8080/geoserver/wms",
>> 	        {
>> 	        	layers: "bafu_ind:surface_habitation_personne_geneve_100m", 
>> 	        	transparent: "true"
>> 	        },
>> 	        {
>> 	        	visibility: false
>> 	        }
>> 	    );
>> 
>> 
>> 		var vecLayer = new OpenLayers.Layer.Vector("Wohnfläche");
>> 
>> 		// create feature store, binding it to the vector layer
>> 		var store = new GeoExt.data.FeatureStore({
>> 		    layer: vecLayer,
>> 		    proxy: new GeoExt.data.ProtocolProxy({
>> 		        protocol: new OpenLayers.Protocol.HTTP({
>> 		            url: "data/surf_21.kml",
>> 		            format: new OpenLayers.Format.KML({
>> 			            extractStyles: true, 
>> 			            extractAttributes: true
>> 		            })
>> 		        })
>> 		    }),
>> 		    fields: [
>> 		        {name: 'name', type: 'string'},
>> 		        {name: 'Avg_GRIDCO', type: 'string'},
>> 		        {name: 'query', type: 'string'}
>> 		    ],
>> 		    autoLoad: true
>> 		});
>> 	
>> 		store.setDefaultSort('name', 'asc');
>> 	
>> 	
>> 
>> 		var vecLayer2 = new OpenLayers.Layer.Vector("Wohnfläche Kantone");
>> 
>> 		// create feature store, binding it to the vector layer
>> 		var store = new GeoExt.data.FeatureStore({
>> 		    layer: vecLayer2,
>> 		    proxy: new GeoExt.data.ProtocolProxy({
>> 		        protocol: new OpenLayers.Protocol.HTTP({
>> 		            url: "data/kantone_wohnflaeche.kml",
>> 		            format: new OpenLayers.Format.KML({
>> 			            extractStyles: true, 
>> 			            extractAttributes: true
>> 		            })
>> 		        })
>> 		    }),
>> 		    fields: [
>> 		        {name: 'name', type: 'string'},
>> 		        {name: 'wohnfl_per', type: 'string'}
>> 		    ],
>> 		    autoLoad: true
>> 		});
>> 	
>> 		store.setDefaultSort('name', 'asc');
>> 
>> 
>> 	     // add layers
>> 	    map.addLayers([wmsLayer, wmsLayer100m, vecLayer, vecLayer2]); 
>> 	
>> 
>> ______________________________________________________________________
>> 
>> Concerning the stores, I can link two different layers to the same GridPanel, no? Guess that they need to have the same attributes though...
>> 
>> And how can I add a WFS layer now?
>> 
>> I have seen this somewhere:
>> 
>> var wfsLayer = new OpenLayers.Layer.Vector("vector", {
>> strategies: [new OpenLayers.Strategy.Fixed()],
>> protocol: new OpenLayers.Protocol.WFS({
>> url: "http://greenway:8399/arcgis/services/SFAFNR00/soil_wfs/GeoDataServer/WFSServer",
>> version: "1.1.0",
>> featureType: "SoilDatabase_wgs84",
>> featureNS: "http://greenway:8399/arcgis/services/SFAFNR00/soil_wfs/GeoDataServer/WFSServer",
>> featurePrefix : "soil_wfs",
>> geometryName: "Shape",
>> srsName: "EPSG:4326"
>> })
>> });
>> 
>> 
>> I tried it out with my parameters, but it doesn't work....
>> 
>> Thanks a lot for any tips!
>> 
>> Stef
>> 
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