Fun with GeoTagging
I've recently started playing with geotagging - adding location information to my photos. The basic idea is that you have a GPS keeping track of your location while you are taking photos, and then when you get back you can look through the GPS logs to see where you were when a picture was taken and add that information to the photo. I found a tool called GPSU that downloads the data from my Magellan SportTrak, and can save it as a .gpx file (GPS in XML). Then I run a perl script called gpsphoto that looks at a directory full of photos and the GPX file and finds the photos that have a time stamp matching timestamps in the GPX file. The final output is that each photo gets EXIF tags of Lat, Long, and altitude, plus a google earth .kml file that shows the track as well as 'pushpins' for each photo. Pretty cool. Here are my first two. If you have Google Earth installed, these will open in that.