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Hello Sarah,<br>
<br>
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 : <br>
<a class="moz-txt-link-freetext" href="http://dev.openlayers.org/releases/OpenLayers-2.10/examples/filter.html">http://dev.openlayers.org/releases/OpenLayers-2.10/examples/filter.html</a><br>
<br>
Regards,<br>
<br>
Alexandre<br>
<br>
<br>
On 11-07-07 09:20 AM, Sarah Schuessler wrote:
<blockquote
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<div>Any hints on this?<br>
Am I right to think that if I use BBOX with my wfs that my
linked FeatureStore is only loading such number of features?<br>
And why did including ext-override-ajax.js not work? <br>
<br>
Thanks!<br>
best regards<br>
Sarah<br>
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<div>Hi list,<br>
<br>
I have a wfs and want to publish my data via a
FeatureStore. <br>
If I load it with:<br>
fields: [{name: .....}],<br>
proxy: new GeoExt.data.ProtocolProxy({<br>
protocol: new OpenLayers.Protocol.WFS({<br>
url:<br>
...<br>
})<br>
})<br>
there is a long loading time because of high number of
features.<br>
<br>
If I want to use <br>
layers: wfsLayer <br>
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.<br>
My wfs layer is:<br>
wfsLayer = new OpenLayers.Layer.Vector("mywfs",<br>
{styleMap: wfsStyle,<br>
displayInLayerSwitcher: false,<br>
strategies: [new OpenLayers.Strategy.BBOX()],<br>
protocol: new OpenLayers.Protocol.WFS({<br>
featureNS: "myNS",<br>
featureType: "mylayer",<br>
version: "1.1.0",<br>
...<br>
})<br>
});<br>
I included a proxy script which is working.<br>
I searched and found that I have to add
ext-override-ajax.js to my GeoExt build but that did not
help.<br>
<br>
What I`m doing wrong?<br>
Any hints to get better performance for displaying data?<br>
<br>
Thanks<br>
best regards<br>
Sarah<br>
</div>
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<br>
<br>
<pre class="moz-signature" cols="72">--
Alexandre Dubé
Mapgears
<a class="moz-txt-link-abbreviated" href="http://www.mapgears.com">www.mapgears.com</a>
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