Hi,
Just to gauge opinion, would it be possible / of use to allow alternative styles to be provided on layer groups in a future release of GeoServer?
At present a layer group has a list of layers and I can specify the style I want applied to each layer. I would think it would in theory be possible to define multiple style sets (i.e. a style for each layer with a name for the grouping).
To give an example; our base maps are a layer group with a number of raster layers and then vector at the most detailed level. The vector level draws in full colour but some users want to be able to see it in black and white (effectively you just delete the from the SLD). The raster layers are the same so I want to share the cache for those if possible. It would be useful if that particular level could display two styles (and cache them of course).
I believe it is already possible if you publish them as separate layers but then you have to put something in your OpenLayers display to change the base map at given scales.
It would be good to hear other thoughts on that.
Cheers,
Paul