Hi, for WMS request , you should use GeoWebcache, pre-render all your layers at discrete zoom levels, then you can either make a mesh or add them seperately to Open Layers as overlays with transparent background in the order that suits you.
regards, Imran On Tue, Jun 15, 2010 at 10:49 AM, Dragan Podvezanec <dragan.podveza...@gmail.com> wrote: > > Hi all. > > I'm having a map with 350 different layers (Geoserver WMS connected to > database). > > I tried to use few approaches how to show such big number of layers, and I'm > having problem with all of them, so I would need some advice how to do this: > > 1. Using layer groups at Geoserver > - I can't use this approach, because user must see any combination of those > 350 layers. So I can't make layer groups for all combinations > > 2. Every layer in it's own request > - also impossible: when user turns on more than 40 layers, this is 40 > requests and 40 images to fetch from WMS. It gets very slow and unresponsive > > 3. Single WMS request with filters > - this is only way that works: single WMS request with CQL filters, like > this: > ...&CQL_FILTER=((ID=1)AND(ID=2))... and so on > > This is ok so far, but I'm hitting the URL length limit, and with few more > layers, this will also not work anymore. > > So, do you have any other ideas how to deal with this problem ? > > > > > -- > View this message in context: > http://osgeo-org.1803224.n2.nabble.com/Dealing-with-large-number-of-WMS-layers-tp5180575p5180575.html > Sent from the OpenLayers Users mailing list archive at Nabble.com. > _______________________________________________ > Users mailing list > Users@openlayers.org > http://openlayers.org/mailman/listinfo/users > -- I.R _______________________________________________ Users mailing list Users@openlayers.org http://openlayers.org/mailman/listinfo/users
