On Fri, May 6, 2011 at 11:15 AM, Paolo Crosato <[email protected]> wrote: > Hi, > > I work for an LBS based company, we have our own proprietary rendering > engine for producing maps, and we work mainly with data from Navteq and > TomTom. Presently our rendering engine is behind the competition in terms of > visual quality (we have a bad support for antialiasing, label names with > both native and transliterate names are missing, and so on). Introducing new > features in our current rendering architecture would require quite a lot of > coding and re-engineering, so we are looking for alternative renderers, > possibly open sourced. During this research project I first came across > Mapserver, then I studied GeoServer and its several features. I like very > much the extensive built in support for open services like WMS and the other > OGC standards, and in terms of render quality GeoServer would suit very much > our needs.
Ciao Paolo, primi passi in GeoServer? Switching to english for the benefit of everyone else :-p > I still have some questions I would like to ask. > > In regards to rendering: > 1) Is there any way to align labels in different encondings for the same > city? I mean something like writing Москва́ and Moskvá vertically aligned, > like on Google Maps. In Mapserver I can have this behaviour both with > Mapfile sintax and working with the labels on the DB side, is it the same > for GeoServer? If you want to have both of them appear, or none of the two, I suggest you modify the db and have a label with a newline in the middle. Otherwise two text symbolizer with different offsets should be good. > 2) I examined the maps of the Portland city project (Trimet), they are > really stilish, and I noticed the buildings are represented in a > prospective-like fashion, as in Google Maps. Is this feature built in in > GeoServer? Edward already answered this one. > In regards to working with high loads of data: > 1) We render our maps from data provided by vendors like Navteq, and they > have a lot of details and features. Is there anyone working in the same > field, who could share some of his experience? I've heard of people doing this without issues. Actually Tele Atlas had a tutorial about using GeoServer along with their data on their site once, not sure if it's still there: http://blog.geoserver.org/2008/08/15/tele-atlas-heart-geoserver/ > 2) I examined the case studies cited in the documentation, it seems to me > that the hardware requirements for GeoServer to run smoothly with high loads > of data are higher then with Mapserver. Currently we are able to provide all > our services (mapping, geocoding, routing...) with just two dual quad core > Xeon servers, with 16G ram and a SAS array for data (file based). Would this > be sufficient to run GeoServer with a PostGis or Spatial backend, or would > we need to buy more hardware? GeoServer needs more memory for light loads, as the load goes up you need to setup fastcgi with mapserver and the memory consumption at that point might become similar (not equal, but same ballpark, e.g., 2GB vs 1GB). Try out GeoServer 2.1, it's quite a bit faster than 2.0.x (not sure if you looked at the latest or the stable). I've seen installations serving high load setups without issues, ranging from having many layers (160000+), large vector ones (100 million features in Oracle/PostGIS) and large raster ones (hundreds of terabytes). Whether the hardware is sufficient or not depends on data volume, the styling chosen and the amount of requests/day (and the peak load if you have any SLA to respect). Difficult to say, I've seen setups serving 60000 requests a day with one core and one GB of memory, with few data, to the common cluster, which is the one you describe, up to large ones that tens of nodes. Cheers Andrea -- ------------------------------------------------------- Ing. Andrea Aime GeoSolutions S.A.S. Tech lead Via Poggio alle Viti 1187 55054 Massarosa (LU) Italy phone: +39 0584 962313 fax: +39 0584 962313 http://www.geo-solutions.it http://geo-solutions.blogspot.com/ http://www.youtube.com/user/GeoSolutionsIT http://www.linkedin.com/in/andreaaime http://twitter.com/geowolf ------------------------------------------------------- ------------------------------------------------------------------------------ WhatsUp Gold - Download Free Network Management Software The most intuitive, comprehensive, and cost-effective network management toolset available today. Delivers lowest initial acquisition cost and overall TCO of any competing solution. http://p.sf.net/sfu/whatsupgold-sd _______________________________________________ Geoserver-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/geoserver-users
