Topic: Geo location database
I've been playing around with a geo-location database. I have a camera mounted on our travel van. Periodically, it takes pictures of where we are. I've written (OK, mostly re-written) various code I've found to tag the pics with location, lat/lon, date, time, direction, speed, and outside temp.
The temp code is written for the TEMPer1 and TEMPer2 usb sensors available from http://www.pcsensor.com . The makefile is for Openwrt.
To get the geo-location working, you need to download the data from here:
There is a parse utility that will create the sql database. Feed that to sqlite3. I ended up using rtrees so make sure your sqlite is built with rtree support.
Anyway, for what it's worth, the tarball is at http://www.seiner.com/cz/locate.tar.bz2 . It's not quite plug and play; you probably need to adapt it to your application. It depends on fswebcam to actually take the picture and label it.
It's a fun project. I'd appreciate patches and such but I suspect it's too specialized to really be a "project".