Don't you love when you start to see the connections for everything. Even with tiling though, the creation of the tiles will go much faster with a well thought out vector data layer.
As I said before, I am thouroughly revved up about both ideas and think they both go hand in hand towards democratizing the entire process of getting at the data, but they are still different. On 1/26/06, Allan Doyle <[EMAIL PROTECTED]> wrote: > Good point. Tiling schemes are more or less orthogonal to data set > collection and maintenance. (I admit that I was focusing on the > tiling parts of the thread and didn't quite cotton on to this myself.) > > At the same time, where they intersect is at the level of the idea of > canonical layers. I'd like to see a cached set of tiles for several > different layers. > > Another point of intersection could be that the vector data store can > emit GeoRSS when things change. Tile generators can subscribe to the > appropriate feeds and keep their tiles up to date. > > Allan > > On Jan 26, 2006, at 09:39, David Bitner wrote: > > > Please note, as discussed before, I think that the tiling is a > > different beast than what the Wiki will be used for. I'm all tiling > > and just signed up to that mailing list, but we should probably keep > > the vector data processing chatter away from that discussion. I'm not > > sure if we want a public data vector processing list or not. > > > > In any case, I will try to get the existing data from the geotools > > site moved to the new Wiki by Saturday. Early next week I'll start > > trying to spread the word to some other lists (I'll be hitting PostGIS > > and MapServer, others please hit whatever you feel is appropriate). > > > > Thanks for getting this set up Jody! > > > > David > > > > On 1/26/06, Allan Doyle <[EMAIL PROTECTED]> wrote: > >> And, here's a mailing list: > >> > >> http://lists.eogeo.org/mailman/listinfo/tiling > >> > >> Now that GeoRSS (http://www.georss.org) is more or less ready (we > >> still need to do a few final text tweaks and clean up the web site) a > >> tiling scheme seems like a great Next Thing. > >> > >> It seems that we need to define what the resolution levels are, work > >> out a tiling scheme so that clients can request tiles either by bbox > >> or by name (maybe these are the same thing) and so that tiles can be > >> cached and distributed. > >> > >> If we then define a dozen or so canonical layers with specific names, > >> we can tile each of those layers into the tiling scheme and people > >> could just assume that those layers will always be there. Things like > >> "boundaries", "water bodies", "roads", "cities", etc. > >> > >> If the tiling scheme uses WMS requests, then the tiles can be > >> generated from some carefully crafted WMS engines with carefully > >> maintained data sources. People could cache tiles using Squid, > >> modified httpd software, or perl, python, or ruby hacks. > >> > >> The tile fetches would be against web servers that are essentially > >> serving static files and thus ought to be blazingly fast. > >> > >> The whole thing can then be wrapped up in a nice bundle as a WMS > >> profile. > >> > >> And, drum roll.... GeoRSS can be used to describe the tiles and could > >> be used to help track who has tiles. (Thanks to Andy Hook for that > >> inspiration) > >> > >> Allan > >> > >> On Jan 26, 2006, at 03:58, Jody Garnett wrote: > >> > >>> David Bitner wrote: > >>> > >>>> Now that the chatter has died down, it looks like we have three > >>>> choices to host a wiki: > >>>> > >>>> udig or codehaus and worldwind > >>>> > >>>> I'm not personally concerned with udig or worldwind association I > >>>> think if we put useful stuff out there, people will use it and will > >>>> hopefully contribute. > >>>> > >>> Here is a space - login to create an account (and thus be able to > >>> edit). If you use it cool, if not > >>> it is open for others. > >>> > >>> - http://udig.refractions.net/confluence/display/DATA/Home > >>> > >>> Thanks for putting this information together in a public location - > >>> something we will all enjoy. > >>> > >>> Jody > >>> _______________________________________________ > >>> Geowanking mailing list > >>> [email protected] > >>> http://lists.burri.to/mailman/listinfo/geowanking > >>> > >> > >> -- > >> Allan Doyle > >> +1.781.433.2695 > >> [EMAIL PROTECTED] > >> > >> > >> _______________________________________________ > >> Geowanking mailing list > >> [email protected] > >> http://lists.burri.to/mailman/listinfo/geowanking > >> > > _______________________________________________ > > Geowanking mailing list > > [email protected] > > http://lists.burri.to/mailman/listinfo/geowanking > > > > -- > Allan Doyle > +1.781.433.2695 > [EMAIL PROTECTED] > > > _______________________________________________ > Geowanking mailing list > [email protected] > http://lists.burri.to/mailman/listinfo/geowanking > _______________________________________________ Geowanking mailing list [email protected] http://lists.burri.to/mailman/listinfo/geowanking
