Not sure if this will work for you, but I just came across this today: http://cartographer.visualmotive.com/
It's a javascript library that lets you overlay information on Google maps. You can do choropleths/heat maps, and the like. I haven't used it, but the underlying raphael library is really awesome, so I have high hopes. Mike On Tue, Jan 19, 2010 at 7:34 PM, Kevin Elliott <[email protected]> wrote: > Hey guys, > > It has been a while since I last posted here, but I always lurk. I wanted > some advice on which direction to head to put together a little tiny mashup > that won't be publicly used. > > I'm tracking a number of items that "belong" to geographical areas > (countries and subcountries/regions). I'd like to create a map that shows > these regions, using colors in the polygons for each region, to identify # > of current items versus # estimated total. > > For example: > > If California, USA was the region, and we had 3 items out of 1000 > estimated, I'd like to display California as quite a deep red. If > Afghanistan was the region and we had 67 items out of the estimated 68, it > should be bright green. The range in-between of % complete should show some > scale of those colors. > > So, that's the easy part. I'd like to do this in Ruby on Rails if possible. > I'm not really interested in running a full blown WDS server, etc. I'm open > to mashups, and I'd prefer the maps to look up-to-date, and the polygon > drawing should be clean looking. I don't need absolute precision that a > commercial database might offer (for the polys), so I'm very open to > anything open source in nature. > > Can you guys recommend some directions to go that are relatively > lightweight? > > At a minimum, I've got 200+ countries to visualize, and, if available, > their sub-regions. > > Thanks, > Kevin > > -- > *Kevin Elliott* > > Website: Mused for iPhone <http://www.musedapp.com/> > Buy: Mused in the Apple iTunes App Store <http://bit.ly/4yr2kp> > > > _______________________________________________ > Geowanking mailing list > [email protected] > http://geowanking.org/mailman/listinfo/geowanking_geowanking.org > >
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