The mapbuilder code uses //wmc:ResourceList/wmc:Layer[wmc:Extension/wmc:Group/@name=$GroupName] So this means that it selects the layers which have a group-extension. I believe the structure is hierarchical, so using group/layer approach should be consistent with the OWS spec. But I'm not the real expert, I though gertjan did the grouping code, but could be wrong.
Steven Cameron Shorter wrote: > Grouping layers has been discussed a few time on the Mapbuilder list, in > particular including Grouping in the OWS Spec. > It would be good to confirm that your grouping code is consistent with > Mapbuilder and OWS Context to ease future integration issues. > I think Steven is probably the expert in this area. > > Lorenzo Becchi wrote: > >> Cool Jachym. >> >> that's a good idea. >> It can even represent the complete structure of a WMS GetCapabilites >> (read: WMS Manager [1]). >> >> At the code sprint in Victoria, we where talking with Chris about the >> possibility to add few features to LayerSwticher. This could be one. >> other possible attribute wired features: >> - "buttonDropLayer" : true //activate a button to let the user drop the >> layer from map and layerSwitcher >> - "buttonZoom2Extent" : true //show a button to zoom to layer extent >> - "buttonOpacity" : true //show two buttons change layer opacity >> - "buttonMoveLayer" : true //show two buttons to move layers up or down >> in the overlay list (this could collide with your structure) >> >> this are the buttons that could apply to all type of layers. >> button could be just a div where all styles are defined inside the CSS. >> >> if you and others agree we can expand your Ticket or make another that >> can manage all points. Or make a lots of tickets... >> ciao >> Lorenzo >> >> ps: btw, your patch doesn't work on Safari 2. >> >> [1] *http://tinyurl.com/2fjbr7* >> >> >> >> Jachym Cepicky wrote: >> >> >>> Hi developers, >>> I have implemented ordering map layers into groups [1]. You have to >>> specify new layer attribute group:"Group Name", e.g.: >>> >>> var dm = new OpenLayers.Layer.WMS( "DM Solutions Transit", >>> "http://www2.dmsolutions.ca/cgi-bin/mswms_gmap";, >>> {layers: "rail,road", >>> transparent: "true", format: "image/png" >>> }, >>> { >>> group:"Transit" >>> }); >>> >>> You can define group hierarchy using "/" mark: >>> >>> .... >>> group: "Transit/Roads" >>> .... >>> >>> Only changed file is LayerSwitcher.js >>> >>> For example see [2] >>> >>> Hope, you'll like it >>> >>> Jachym >>> >>> [1] http://trac.openlayers.org/ticket/1086 >>> [2] >>> http://dev.openlayers.org/sandbox/jachym/openlayers/examples/layer-groups.html >>> >>> ------------------------------------------------------------------------ >>> >>> _______________________________________________ >>> Dev mailing list >>> [email protected] >>> http://openlayers.org/mailman/listinfo/dev >>> >>> >>> >> _______________________________________________ >> Dev mailing list >> [email protected] >> http://openlayers.org/mailman/listinfo/dev >> >> >> > > > _______________________________________________ Dev mailing list [email protected] http://openlayers.org/mailman/listinfo/dev
