[Users] filter wms layers in legend

[ivan marchesini]

Thanks Bart...
any idea about a workaround?

I have to modify my webgis for Monday... acc....  :-(

ciao 

Ivan


Il giorno ven, 17/12/2010 alle 15.18 +0100, Bart van den Eijnden (OSGIS)
ha scritto:
> Hi Ivan,
> 
> I think you should open up a Trac ticket, this is something we need to
> handle/fix IMHO in the GeoExt legend. Patches welcome ofcourse :-)
> 
> The legend will only add new layers if they get added to the map / layer
> store.
> 
> Best regards,
> Bart
> 
> > Many thanks Bart,
> > in effect your filter is perfect at start...
> >
> > the problem is that, as you suggested, it seems that the layers are not
> > added to the legend container when a new layer is swithced to
> > visibility: true.
> >
> > should I create some event on map or someting similar to force the
> > legend to look for new visible layers ??
> >
> > many many thanks
> >
> > Ivan
> >
> >
> >
> >
> > Il giorno ven, 17/12/2010 alle 12.39 +0100, Bart van den Eijnden (OSGIS)
> > ha scritto:
> >> Hi,
> >>
> >> you would do something like:
> >>
> >> filter: function(record) {
> >>     return record.get('layer').visibility;
> >> }
> >>
> >> However, I am not sure if layers will be added in the legend container
> >> when you change the visibility of the layer to true, you would need to
> >> test if this works okay or not.
> >>
> >> Best regards,
> >> Bart
> >>
> >> > Dear GeoExt users..
> >> > my GeoExt application use a GeoExt.LegendPanel object
> >> >
> >> > I have a lot of wms layers (67) added to the mapPanel.
> >> > only two of these layers has visibility: true.
> >> >
> >> > It happen that each time I load the webpage the legend panel start to
> >> > ask for the legend of each layer.
> >> >
> >> > that creates a lot of getLegend call towards the wms server which
> >> become
> >> > unstable...
> >> >
> >> > I would like to filter the layers to be displayed in the legendPanel
> >> by
> >> > means of the visibility property...
> >> >
> >> > in this way when I swich on another layer from the layers tree the
> >> > legendPanel should execute the getLegend call.
> >> >
> >> > it seem that using this filter inside the GeoExt legendPanel object is
> >> > not correct...
> >> >
> >> > filter: function(record) {
> >> > 		return mapPannel.map.getLayersBy('visibility',true)
> >> > 		}
> >> >
> >> > please give me some help...
> >> >
> >> > thanks
> >> >
> >> > Ivan
> >> >
> >> >
> >> >
> >> > --
> >> > Ti prego di cercare di non inviarmi files .dwg, .doc, .xls, .ppt.
> >> > Preferisco formati liberi.
> >> > Please try to avoid to send me .dwg, .doc, .xls, .ppt files.
> >> > I prefer free formats.
> >> > http://it.wikipedia.org/wiki/Formato_aperto
> >> > http://en.wikipedia.org/wiki/Open_format
> >> >
> >> > Ivan Marchesini
> >> > Perugia (Italy)
> >> > Socio fondatore GFOSS "Geospatial Free and Open Source Software"
> >> > http://www.gfoss.it
> >> > e-mail: marchesini at unipg.it
> >> >         ivan.marchesini at gmail.com
> >> > fax (home): +39(0)5782830887
> >> > jabber: geoivan73 at jabber.org
> >> > skype: geoivan73
> >> > _______________________________________________
> >> > Users mailing list
> >> > Users at geoext.org
> >> > http://www.geoext.org/cgi-bin/mailman/listinfo/users
> >> >
> >>
> >>
> >
> > --
> > Ti prego di cercare di non inviarmi files .dwg, .doc, .xls, .ppt.
> > Preferisco formati liberi.
> > Please try to avoid to send me .dwg, .doc, .xls, .ppt files.
> > I prefer free formats.
> > http://it.wikipedia.org/wiki/Formato_aperto
> > http://en.wikipedia.org/wiki/Open_format
> >
> > Ivan Marchesini
> > Perugia (Italy)
> > Socio fondatore GFOSS "Geospatial Free and Open Source Software"
> > http://www.gfoss.it
> > e-mail: marchesini at unipg.it
> >         ivan.marchesini at gmail.com
> > fax (home): +39(0)5782830887
> > jabber: geoivan73 at jabber.org
> > skype: geoivan73
> >
> 
> 

-- 
Ti prego di cercare di non inviarmi files .dwg, .doc, .xls, .ppt.
Preferisco formati liberi.
Please try to avoid to send me .dwg, .doc, .xls, .ppt files.
I prefer free formats.
http://it.wikipedia.org/wiki/Formato_aperto
http://en.wikipedia.org/wiki/Open_format

Ivan Marchesini
Perugia (Italy)
Socio fondatore GFOSS "Geospatial Free and Open Source Software" http://www.gfoss.it
e-mail: marchesini at unipg.it
        ivan.marchesini at gmail.com
fax (home): +39(0)5782830887
jabber: geoivan73 at jabber.org
skype: geoivan73
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