Hey Paul, Paul Dziemiela wrote: > Hi folks, > > Been putting together a SLD library system and wanting to use the results in > OpenLayers. From what I see the singular expectation of OpenLayers is that > SLD documents will follow the structure of > > <sld:StyledLayerDescriptor ... > > <sld:NamedLayer> > <sld:Name>Foo</sld:Name> > <sld:UserStyle> > <sld:Name>Swamp</sld:Name> > <sld:FeatureTypeStyle> > <sld:Rule> > ... > > However, the SLDs produced by the recent version of uDig(1.1.1) instead > create structures like > > <sld:StyledLayerDescriptor ...> > <sld:UserLayer> > <sld:LayerFeatureConstraints> > <sld:FeatureTypeConstraint /> > </sld:LayerFeatureConstraints> > <sld:UserStyle> > <sld:Name>Swamp</sld:Name> > <sld:FeatureTypeStyle> > <sld:Rule> > > I'm wondering if the current OpenLayers design is intended to be the only > way to parse SLDs or if it's just a case of needing someone to do the work > to accept other formats?
The latter. In the return object of Format.SLD, everything is prepared for UserLayers already. They are just not being parsed yet. > The uDig SLD should have some kind of name applied > to the UserLayer I think. > According to the spec, this is not required. > Seems like the SLD development in general has slowed to some degree of late. > Has anything further come of Andreas Hocevar's work via 1531? > http://trac.openlayers.org/ticket/1531 > I particularly like the idea of adding in the FeatureTypeStyle logic into > the OpenLayers style object. It would be helpful to be able to target > particular style rule sets onto particular geometry types. > Yeah, unfortunately these SLD and Style improvements lack funding, and the proposed FeatureTypeStyle support would not change anything in the Style object. That would be even more effort. > I rummaged around but I can't see a way to set an ogc:filter to restrict by > geometry type. Or is that wrong? Can the filter refer to the feature's > geometry's CLASS_NAME? Or could I move the CLASS_NAME into a feature > attribute called "GTYPE" or such? > If you want that in SLD, then SemanticTypeIdentifier would come close. I am not aware of a way to do this with OGC filters. But I am sure there are ways to do what you need in OpenLayers, outside the SLD document. I do not have a clear picture of your use case though. Regards, Andreas. -- Andreas Hocevar OpenGeo - http://opengeo.org/ Expert service straight from the developers. _______________________________________________ Dev mailing list Dev@openlayers.org http://openlayers.org/mailman/listinfo/dev
