[Users] Building a WFS-T-application; Problem rendering WFS

[andreia farrér]

Hi Adam,
thanks a lot for the quick reply.
I now activated the 'extent'-option, but the result is still the same, no
feature-rendering. I don't think it's related to the missing
"zoom/center"-options, but as I'm quite new to GeoExt/OL so I can't rule it
out for sure.
Cheers
Andreia



2010/8/16 Adam Ratcliffe <adam at prema.co.nz>

> HI Andreia,
>
> I note that you've commented out the 'extent' option in the MapPanel
> configuration and you have no 'zoom' and 'center' options specified -
> could that be the problem?
>
> You could try adding the vector layer to the map and letting the
> MapPanel create a LayerStore for you from the map's 'layers' array,
> though looking at the docs the 2 approaches look like they should be
> equivalent.
>
> Cheers
> Adam
>
> On Mon, Aug 16, 2010 at 9:24 PM, andreia farrér
> <andreia.farrer at gmail.com> wrote:
> > Dear List
> > I am trying to build a WFS-T-application with GeoExt/Openlayers. The
> > features are stored in a PostGIS-DB and are served by Geoserver.
> > I managed to retrieve the features (as stated by HttpFox), but somehow
> they
> > won't show up in my mappanel. The code is based on the
> > wfs-states.html-example
> > (http://openlayers.org/dev/examples/wfs-states.html). I simply can't
> figure
> > out why the features aren't rendered.
> > Here's my snippet:
> >
> >> Ext.BLANK_IMAGE_URL = "../ext/resources/images/default/s.gif";
> >>
> >>         Ext.onReady(function() {
> >>             OpenLayers.ProxyHost = "../cgi-bin/proxy.cgi?url=";
> >>
> >> var map_options = {maxExtent: new OpenLayers.Bounds(10000, -240000,
> >> 1380000, 580000),
> >>                 numZoomLevels: 12, maxScale: 5000, minScale: 2000000,
> >> units: 'm',  projection: 'EPSG:21781'};
> >>
> >>             var map = new OpenLayers.Map(map, map_options,{
> >>                 allOverlays: true
> >>                 });
> >>
> >>             var modifyControl = new
> >> OpenLayers.Control.ModifyFeature(ogmlines); //ÄNDERN!
> >>             map.addControl(modifyControl);
> >>             modifyControl.activate();
> >>
> >>
> >> var saveStrategy = new OpenLayers.Strategy.Save({
> >>                 onCommit: function() {
> >>                     saveStrategy.ogm_lines.refresh();
> >>                 }
> >>             });
> >>
> >> ogmlines = new OpenLayers.Layer.Vector("lines",{
> >>                 strategies:[
> >>                 new OpenLayers.Strategy.BBOX(),
> >>                 saveStrategy
> >>                 ],
> >>                 projection: new OpenLayers.Projection("EPSG:21781"),
> >>                 protocol: new OpenLayers.Protocol.WFS({
> >>                     version: '1.1.0',
> >>                     srsName: 'EPSG:21781',
> >>                     url: 'http://localhost:8090/geoserver/wfs',
> >> //?strict=true
> >>                     featureType: 'ogm_lines',
> >>                     featurePrefix: 'OpenGeoMap',
> >>                     geometryName: 'the_geom',
> >>                     extractAttribute: true
> >>                 }),
> >> });
> >>
> >> var mapPanel = new GeoExt.MapPanel({
> >>                 title: "Map",
> >>                 region: "west",
> >>                 width: 600,
> >>                 map: map,
> >>                 layers: [ogmlines],
> >>                 //extent: new OpenLayers.Bounds(485000, 63000, 833000,
> >> 296000),
> >>                 bbar: [
> >>                     new GeoExt.Action({
> >>                         control: new OpenLayers.Control.DrawFeature(
> >>                             ogmlines, OpenLayers.Handler.Polygon, {
> >> //ogmlines!
> >>                                 handlerOptions: {multi: true}
> >>                             }
> >>                         ),
> >>                         text: "Create",
> >>                         toggleGroup: "tools",
> >>                         map: map
> >>                     }), {
> >>                         text: "Delete",
> >>                         handler: function() {
> >>
> >> gridPanel.getSelectionModel().each(function(rec) {
> >>                                 var feature = rec.get("feature");
> >>                                 modifyControl.unselectFeature(feature);
> >>                                 gridPanel.store.remove(rec);
> >>                                 if(feature.state !==
> >> OpenLayers.State.INSERT) {
> >>                                     feature.state =
> >> OpenLayers.State.DELETE;
> >>                                     ogm_polygons.addFeatures([feature]);
> >>                                 }
> >>                             })
> >>                         }
> >>                     }, "->", {
> >>                         text: "Save",
> >>                         handler: function() {
> >>                             store_polygons.commitChanges();
> >>                             saveStrategy.save();
> >>                         }
> >>                     }
> >>
> >>                 ]
> >>             });
> >> }
> >
> > Any help is HIGHLY appreciated.
> > Kind regards
> > Andreia
> >
> > --
> > Andreia Farrér, Birmensdorferstr. 260, 8055 Zürich; phone: +41 78 825 44
> 93
> >
> > _______________________________________________
> > Users mailing list
> > Users at geoext.org
> > http://www.geoext.org/cgi-bin/mailman/listinfo/users
> >
> >
>



-- 
Andreia Farrér, Birmensdorferstr. 260, 8055 Zürich; phone: +41 78 825 44 93
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