Hi Gilles, Thanks for your help. I already did something similar but it looks like more like a workaround. My need is to make a getFeature wfs-request giving a polygon (or any other geom) as a filter and then grouping the result in a sum.
The table: inhabitants ----------------------- the_geom (point) number_of_inhabitants (number of person living in the point coordinate) The request could be something like that: <wfs:GetFeature xmlns:wfs="http://www.opengis.net/wfs"; xmlns:ogc="http://www.opengis.net/ogc"; xmlns:gml="http://www.opengis.net/gml"; xmlns:my="http://www.myns.ch"; outputFormat="GML2" version="1.1.0" service="WFS"> <wfs:Query typeName="my:inhabitants"> <wfs:Function name="Collection_Sum"> <wfs:PropertyName>number_of_inhabitants</wfs:PropertyName> </wfs:Function> <Filter> <Intersects> <PropertyName>the_geom</PropertyName> <gml:Box srsName="21781"> <gml:coordinates>701633.0,141786.0 709477.0,151000.0</gml:coordinates> </gml:Box> </Intersects> </Filter> </wfs:Query> </wfs:GetFeature> But it doesn't work.. :-( Where am I wrong? rgds Milan Gilles Bassière-2 wrote: > > Hi milan > > I went into the same problem. AFAIK, there's no solution within the > scope of OGC specification. I had to develop my own webservice, it was > pretty easy in my case since I work with a PostGis backend. > > On the client side, I just had to tweak the : > > 1) Set an appropriate mouse handler in the draw() method of the > underlying OpenLayers control. Try the following for example if you need > a circular selection tool: > this.handler = new OpenLayers.Handler.RegularPolygon( > this, > {done: this.selectBox}, > {keyMask: this.keyMask, sides: 40} > ); > The OpenLayers.Handler.Polygon handler should enable any polygon to be > drawn. > > 2) Adapt the selectBox method (of the same Control object) to your > webservice specification. I've been able to send my geometry as WKT > thanks to the OpenLayers.Format.WKT objects. > > Hope it helps > Gilles > > milan.antonovic wrote: >> Hi all, >> I am new to Mapbuilder... >> Does anyone knows how to make a widget like the "WfsGetFeature" that >> instead >> of quering the map with a point or a rectangle it queries the map with an >> (irregular) polygon? >> >> Thanks.. >> >> rgds >> >> Milan >> > > -- > Gilles Bassiere > MAKINA CORPUS > 30 rue des Jeuneurs > FR-75002 PARIS > +33 (0) 1 44 82 00 80 > http://www.makina-corpus.com > > > begin:vcard > fn;quoted-printable:Gilles Bassi=C3=A8re > n;quoted-printable:Bassi=C3=A8re;Gilles > org:Makina Corpus;GIS > adr;quoted-printable:;;30 rue des Je=C3=BBneurs;Paris;;FR-75011;France > email;internet:[EMAIL PROTECTED] > title:Web GIS developper > tel;work:+33 (0) 1 44 82 00 80 > x-mozilla-html:FALSE > url:http://www.makina-corpus.com > version:2.1 > end:vcard > > > ------------------------------------------------------------------------- > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > http://sourceforge.net/services/buy/index.php > _______________________________________________ > Mapbuilder-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/mapbuilder-users > > -- View this message in context: http://www.nabble.com/How-to-query-WFS-with-an-irregular-polygon--tp17728915p18007818.html Sent from the MapBuilder Users mailing list archive at Nabble.com. ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php _______________________________________________ Mapbuilder-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mapbuilder-users
