[Users] FeatureStore - too many features

[Alexandre Dube]

Hello Sarah,

   Yes, you could define a BBOX filter in your WFS protocol to fetch 
just a portion of the features you want.  See an example of BBOX 
filtering :
     http://dev.openlayers.org/releases/OpenLayers-2.10/examples/filter.html

   Regards,

Alexandre


On 11-07-07 09:20 AM, Sarah Schuessler wrote:
> Any hints on this?
> Am I right to think that if I use BBOX with my wfs that my linked 
> FeatureStore is only loading such number of features?
> And why did including ext-override-ajax.js not work?
>
> Thanks!
> best regards
> Sarah
>
> ------------------------------------------------------------------------
> **
>
> Hi list,
>
> I have a wfs and want to publish my data via a FeatureStore.
> If I load it with:
> fields: [{name: .....}],
> proxy: new GeoExt.data.ProtocolProxy({
>     protocol: new OpenLayers.Protocol.WFS({
>         url:
>         ...
>     })
> })
> there is a long loading time because of high number of features.
>
> If I want to use
> layers: wfsLayer
> instead of protocol option (because I use BBOX filter for wfs reducing 
> features from 10000 to some hundred) I get an error that proxy is 
> undefined.
> My wfs layer is:
> wfsLayer = new OpenLayers.Layer.Vector("mywfs",
>     {styleMap: wfsStyle,
>      displayInLayerSwitcher: false,
>      strategies: [new OpenLayers.Strategy.BBOX()],
>      protocol: new OpenLayers.Protocol.WFS({
>         featureNS: "myNS",
>         featureType: "mylayer",
>         version: "1.1.0",
>         ...
>         })
>     });
> I included a proxy script which is working.
> I searched and found that I have to add ext-override-ajax.js to my 
> GeoExt build but that did not help.
>
> What I`m doing wrong?
> Any hints to get better performance for displaying data?
>
> Thanks
> best regards
> Sarah
>
>
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-- 
Alexandre Dubé
Mapgears
www.mapgears.com

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