I would note that the work that I'm doing in my untiled3 branch could be helpful for this.
The problem is that WFS layer is no longer subclassed off of grid. I think this is a mistake, but so be it. At the very least, the work with sending loadStart and loadEnd events can be a good model. --erik On 7/6/07, Tim Schaub <[EMAIL PROTECTED]> wrote: > Hey Dmitri- > > Dmitri Mizerkin wrote: > > Hi! > > > > I haven't got any reaction to my previous mail, so I'm trying to point > > your attention to my problem again in this follow-up. > > The problem is: after loading a GML layer the features collection of the > > layer stays empty (at least for some time), which means that there's no > > way to handle those in the loadend-event of the layer. Is there another > > event, which is raised after the features collection of the loaded layer > > is initialized? Is there any rational workaround? > > You're right. There is no good way to do what you want right now. I > assume you're talking about the WFS layer in vector mode (as opposed to > marker mode). When the tile for this layer is drawn a WFS request is > made asynchronously - when this request returns, the GML is parsed and > added to your layer. As each feature is added to your layer, the > optional onFeatureInsert property of your layer (a function) is called. > This is not handy if you want to know when the features are done being > added. > > I thought there was a ticket out there already for this. I'll check - > and add one if not. > > I'm hoping to do some work on the WFS layer in the near future. This > and other issues will likely get addressed then. > > Tim > > > > > > Cheers, > > Dmitri Mizerkin > > > > ---------- Forwarded message ---------- > > From: *Dmitri Mizerkin* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> > > Date: 05.07.2007 10:33 > > Subject: Problem with GML features > > To: [email protected] <mailto:[email protected]> > > > > Hello everybody! > > > > I'm experiencing problems with handling the features of a GML layer, > > which is loaded when the page is opened. The problem is that after the > > 'loanend' event is raised, the features-property of the layer stays > > empty for some more time, so there is no way to examine the features in > > this handler. In my case I need to extract the bounds-properties of the > > features to construct an common bounds-object for zooming (the action > > should simulate feature selection and zooming to the selection). > > > > Any ideas, how this could work? > > > > Here's my code snapshot: > > > > function SelectFeature() { > > var layer = GetLayerByName(FEATURE_LAYER); //returns a MapServer layer > > to send a request on > > if (layer == null) > > return; > > var selection_url = CreateWFSGetFeatureRequest(layer, FIELD_NAME, > > FIELD_VALUE); //creates a WFS GetFeature-request > > if ((selection != null)&&(selection.map != null)) { > > OLMap.removeLayer (selection); > > selection = null; > > } > > selection = new OpenLayers.Layer.GML("Selected Objects", selection_url); > > OLMap.addLayer(selection); > > selection.displayInLayerChooser = false; > > selection.events.register ("loadend", selection, ZoomToSelection); > > selection.events.triggerEvent("loadend"); > > } > > > > function ZoomToSelection() { > > var bounds = ComputeSelectionBounds(); > > if (bounds == null) > > return; > > OLMap.zoomToExtent(bounds); > > } > > > > Thanks in advance! > > > > -- > > Regards, > > Dmitri > > > > -- > > Gruß, > > Dmitri > > > > > > ------------------------------------------------------------------------ > > > > _______________________________________________ > > Users mailing list > > [email protected] > > http://openlayers.org/mailman/listinfo/users > > _______________________________________________ > Users mailing list > [email protected] > http://openlayers.org/mailman/listinfo/users > _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
