Hi list,
I have a particular WFS layer here which is giving me trouble and I need some
help on identifying the correct geometryName and the filter property.
It’s gazetteer service and I want to apply comparison filters eventually.
var myFilter = new OpenLayers.Filter.Comparison({
type: "~",
property: "nombreEntidad", //no
value: "Madrid"
});
So far I’ve managed to display points on my map using Strategy.Fixed without
any filter:
var myLayer = new OpenLayers.Layer.Vector( "my title", {
strategies: [new OpenLayers.Strategy.Fixed()],
protocol: new OpenLayers.Protocol.WFS({
url: "http://www.idee.es/IDEE-WFS-Nomenclator-NGC/services?";,
featureType: 'Entidad',
featurePrefix: 'mne',
featureNS : "http://www.idee.es/mne";,
readFormat: new OpenLayers.Format.GML(),
srsName: "EPSG:4230",
version: '1.1.0',
maxFeatures: 10,
extractAttributes: true
}),
projection: new OpenLayers.Projection("EPSG:4230"),
// filter: myFilter;
});
I tried setting the filter property to "nombre" or "nombreEntidad" – with and
without prefix, but no luck. ("PropertyName " nombreEntidad" cannot be
resolved”).
For applying any spatial filters or just the BBOX strategy I’d have to indicate
additionally the geometryName which I haven’t figured out either.
Besides, I can select features but the attribute values are null
(feature.attributes have the expected keys but their values are null).
Does anybody have a clue? I could post some XML if it’s of help.
I’d also like to know if there is any difference in terms of performance
between
1) filterStrategy, 2) filter, and 3) style with a rule and a filter. I guess
the third option is slowest but what about the other 2 options?
Best regards
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