[OpenLayers-Users] How to use OpenLayers requesting WFS with Spatial Operations

[Myeong Hun Jeong]

Dear list.

I want to know how to use openlayers when I request WFS with Spatial
Operations.

For example, at GeoServer Demo Request page, I can fin
WFS_getFeatureBBox01.1.url and WFS_getFeatureBBox01.1.xml samples.

So, the request is that

http://localhost:8888/geoserver/wfs?request=GetFeature&version=1.0.0&typeName=topp:states&propertyName=STATE_NAME,PERSONS&BBOX=-75.102613,40.212597,-72.361859,41.512517

or

http://localhost:8888/geoserver/wfs

<wfs:GetFeature service="WFS" version="1.1.0"

  xmlns:topp="http://www.openplans.org/topp";

  xmlns:wfs="http://www.opengis.net/wfs";

  xmlns:ogc="http://www.opengis.net/ogc";

  xmlns:gml="http://www.opengis.net/gml";

  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";

  xsi:schemaLocation="http://www.opengis.net/wfs

                      http://schemas.opengis.net/wfs/1.1.0/wfs.xsd";>

  <wfs:Query typeName="topp:states">

    <wfs:PropertyName>topp:STATE_NAME</wfs:PropertyName>

    <wfs:PropertyName>topp:PERSONS</wfs:PropertyName>

    <ogc:Filter>

      <ogc:BBOX>

        <ogc:PropertyName>the_geom</ogc:PropertyName>

        <gml:Envelope srsName="http://www.opengis.net/gml/srs/epsg.xml#4326
">

           <gml:lowerCorner>-75.102613 40.212597</gml:lowerCorner>

           <gml:upperCorner>-72.361859 41.512517</gml:upperCorner>

        </gml:Envelope>

      </ogc:BBOX>

   </ogc:Filter>

  </wfs:Query>

</wfs:GetFeature>



But when I use openlayers, how to request thses requests exactly?

For instance, when I request GetFeatureInfo with openlayers.

// support GetFeatureInfo

            map.events.register('click', map, function (e) {

                document.getElementById('nodelist').innerHTML = "Loading...
please wait...";

                var url =  map.layers[0].getFullRequestString(

                    {

                        REQUEST: "GetFeatureInfo",

                        EXCEPTIONS: "application/vnd.ogc.se_xml",

                        BBOX: map.getExtent().toBBOX(),

                        X: e.xy.x,

                        Y: e.xy.y,

                        INFO_FORMAT: 'text/html',

                        QUERY_LAYERS: map.layers[0].params.LAYERS,

                        FEATURE_COUNT: 50,

                        WIDTH: map.size.w,

                        HEIGHT: map.size.h

                    },

                    "http://localhost:8888/geoserver/wms";

                );

                OpenLayers.loadURL(url, '', this, setHTML, setHTML);

                OpenLayers.Event.stop(e);

            });

        }





Please, give me a piece of information.



Best regards,

Myeonghun Jeong.

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