Quoting Paul Joyce <joyc...@hotmail.com>: > Hi Christian, > > 25000 layers?? Really?? What are they? Are they all related? And how could > you possibly even automatically generate individual symbology for them all? > The customer is the official statistic agency of Austria (www.statistik.at) and the have a lot of statistical data. Until yet, all of the values are absolute values and we plan to symbolize the values using circles. The area of the circles indicates the value, a higher value has a bigger circle.
As a consequence I have to calculate the area of a circle for each individual value. The data itself is available for a lot of administrative units (province, canton, communes,....). I want to avoid to store 25000 SLDs . This number will increase within the next years. I need some architecture to create the SLDs on the fly. Cheers Christian > Regards, Paul > > -----Original Message----- > From: christian.muel...@nvoe.at [mailto:christian.muel...@nvoe.at] > Sent: Friday, 19 November 2010 8:15 PM > To: Paul Joyce > Cc: 'Robert Buckley'; geoserver-users@lists.sourceforge.net > Subject: Re: [Geoserver-users] What makes more sense?...lots of layers or a > complicated sld? > > @Robert, do you use the REST API for configuration ?. I would not > advise to configure ~ 100 layers manually. > > @Paul, I have currently the problem with about 25000 Layers, so it is > impossible to search in the table of contents. I am investigating in > using geonetwork for searching and geoserver for presentation. Do you > have some experience here. > > Another problem I have is that each layer has its specific SLD. Is it > a good idea to create the SLDs on the fly ?. > > Quoting Paul Joyce <joyc...@hotmail.com>: > >> Good advice from Andrea. I would add that you could consider whether a > user >> needs access to all 110 layers at once. If not, consider splitting the wms >> in multiple smaller wms services, that are more targeted and focussed on a >> specific need. >> I once had a customer that had setup a web map with 220 layers. They were >> having so much trouble finding layers in the table of contents that they >> contacted us to ask that we put in a search facility to find things in the >> tree! >> >> Regards, Paul >> >> -----Original Message----- >> From: Andrea Aime [mailto:andrea.a...@geo-solutions.it] >> Sent: Friday, 19 November 2010 7:31 AM >> To: Robert Buckley >> Cc: geoserver-users@lists.sourceforge.net >> Subject: Re: [Geoserver-users] What makes more sense?...lots of layers or > a >> complicated sld? >> >> On Thu, Nov 18, 2010 at 3:57 PM, Robert Buckley >> <robertdbuck...@yahoo.com> wrote: >>> Hi, >>> >>> I have a GIS project which has become a wms service. The project was not >>> designed for the web, and therefore the datastructure was based on 110 >>> different shapefiles. >>> >>> My job is to publish a wms service displaying these layers. >>> >>> There are approx 110 shp...points,lines, polygons and text. A black/white >>> 60% transparent topographic map is draped over the project in Desktop > GIS. >> >> Generally speaking, better to setup thing so that they make sense :-) >> You can't just merge layers if they have a different set of attributes. >> If you have a few that are purely geometric or have the same attributes >> maybe >> you can merge them and add a classified column, and then use sld rules >> to tell them apart. >> >> For sure you don't want to display a map that has all of 110 layers > enabled >> at the same time, cause that will result in 110 separate queries, but >> if the layers are legit, that would also result in a map so crowded that >> is almost impossible to read. >> >> So merge layers only if they share the same meaning/attributes (e.g., >> create a road layers or out "highways", "primary roads", "secondary roads" >> if you have those as layers), use scale dependencies to show only >> the layers that it makes sense to show at a certain scale, and allow >> the user to turn on and off the layer that do not make sense as part >> of the base map >> >> Hope this helps >> >> Cheers >> Andrea >> ----------------------------------------------------- >> Ing. Andrea Aime >> Senior Software Engineer >> >> GeoSolutions S.A.S. >> Via Poggio alle Viti 1187 >> 55054 Massarosa (LU) >> Italy >> >> phone: +39 0584962313 >> fax: +39 0584962313 >> >> http://www.geo-solutions.it >> http://geo-solutions.blogspot.com/ >> http://www.linkedin.com/in/andreaaime >> http://twitter.com/geowolf >> >> ----------------------------------------------------- >> >> > ---------------------------------------------------------------------------- >> -- >> Beautiful is writing same markup. Internet Explorer 9 supports >> standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. >> Spend less time writing and rewriting code and more time creating great >> experiences on the web. 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