On Friday, December 10, 2010, Alexandre Dube <[email protected]> wrote: > > > > > > > Hi Cédric, > > I had to do that once. Here's what I did : > > * set both original layers their according minScale and maxScale > properties > * set both layers displayInLayerSwitcher: false and make sure they > are not added to your layer tree > * create a dummy layer with the name of your dataset, put it in > your layertree > * register events (both layers visibility should follow this one, > on map "zoomend", check if you need to toggle the 2 layers, etc.) > > That way, you have your unchanging layer in your tree and the > changes are transparent. Could that be okay with you ?
I was going to suggest something along these lines. You can also look at IGN's GeoPortal API, they have a "Group" (or "Aggregate", or ..., I can't remember) layer type that you may want to take a look at. Cheers, -- Eric Lemoine Camptocamp France SAS Savoie Technolac, BP 352 73377 Le Bourget du Lac, Cedex Tel : 00 33 4 79 44 44 96 Mail : [email protected] http://www.camptocamp.com _______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users
