Yeah, it's still in development as part of my master's thesis, but I'll be sure to let the group know when I have something to show.
There is also an aspect of prefetching involved, and it's aimed at academic use (i.e. a lab full of students working with the same WMS datasets). So the ka-map + Squid idea works for some of the caching, but is not so flexible for other pruposes. But thanks for the links. Jeff On 3/28/06, Chris Holmes <[EMAIL PROTECTED]> wrote: > This is a great project, definitely what is needed to get the > 'geospatial web' to take off. Some of our GeoServer users have had > success just sticking GeoServer's WMS behind squid and making standard > requests with ka-map. > > What's really needed next are projects just like this, and then a firm > specification on how clients should divide up tiles. Definitely make > sure that part of the program is flexible, so that when we do get around > to codifying how to do it uDig can place nice from the start. > > I'd be interested in your WFS caching system. My thoughts have been > that for something like uDig it actually makes more sense to just > download the whole dataset and save it locally. We're working on > something like a 'versioning table' in geoserver, that would > automatically be updated when a new insert comes in. This could be > perfectly complemented by a caching system, like in uDig, where it would > just check the version table whenever it fires up, and continue to use > its locally cached copy until there is a feature to be updated. > > Anyways, I ramble on, but be sure to share the results of this project, > this is exciting stuff. And apologies, I'm not a udig developer, so I > can't help you with anything more than encouragement... > > best regards, > > Chris > > On 3/28/06, Jeffrey Bergamini <[EMAIL PROTECTED]> wrote: > > Hi everybody, > > > > First, congratulations on all that uDig has become! It's a great tool. > > > > I'm working on an academic project that involves a WMS/WFS proxy/cache > > system that imposes some regulation on the bounding boxes of > requests, i.e. > > they must be along certain grid lines (defined in WGS 84). I'd like > to use > > uDig as a demonstration client, so that means I need to hook into the > > zooming/selection mechanisms and make sure uDig is making requests along > > those boundaries. > > > > What I have in mind (for an initial, simple, just-works demonstration) is > > that a user should be able to either: > > > > > > Press the Zoom button, and uDig will zoom to the most appropriate > next tile; > > or > > Use the Adjust Current Zoom tool to select a new area, and uDig will make > > minor adjustments so that the area's boundaries lie along the grid lines. > > I'm using standard WMS/WFS with a simple extended Capabilities doc > element > > that notifies a client that this tiling scheme is available. > > > > I've begun looking the at the plugin development tutorials and > skimming some > > of the uDig source, but I think asking this list would be a more > efficient > > way of getting started. Can anyone point me in the right direction as > far as > > where this can and should be accomplished in code? Can it be > developed as a > > plugin, or should I make a custom version of uDig for myself? > > > > Any help is greatly appreciated, and I figure that a couple minutes of > > typing time from those of you who are pretty familiar with uDig will > save me > > many hours of wading through docs and code. > > > > Thanks a lot, and again, keep up the good work. > > > > Jeff Bergamini > > _______________________________________________ > > User-friendly Desktop Internet GIS (uDig) > > http://udig.refractions.net > > http://lists.refractions.net/mailman/listinfo/udig-devel > > > > > > > -- > Chris Holmes > The Open Planning Project > thoughts at: http://cholmes.wordpress.com > > > _______________________________________________ > User-friendly Desktop Internet GIS (uDig) > http://udig.refractions.net > http://lists.refractions.net/mailman/listinfo/udig-devel > > > > _______________________________________________ User-friendly Desktop Internet GIS (uDig) http://udig.refractions.net http://lists.refractions.net/mailman/listinfo/udig-devel
