I like to geotag my photos, but I don’t always have a GPS. A while ago, I got an eyefi card that can record some geolocation information. However, this is based on the wifi hotspots on the neighborhood and that does not work very well in the wild.
During my last trip to Australia (the first trip for my Android phone), I have been using the ‘mytracks’ application from google to record all the places where I was going. Mostly for two reasons: sending the data to open street map and geotagging my photos.
Few days ago Google release an open source library targeted at KML files: libkml. There is also bindings for python available.
Un appareil photo d’un côté, un tracker GPS de l’autre… il est tentant de combiner les info. Ce n’est pas pratique (ou même pas possible) dans la plupart des cas de connecter directement les deux appareils.
Update 17/06/2008: La modification proposée est intégrée dans les sources de gpsbabel et donc disponible dans la version cvs.
Google Earth is becoming commonly used for many applications but what about it’s accuracy? Is a point in Google Earth (or Google map, since this is the same images) really is where it seems to be?
Once you got you’re own kml files from your GPS (as illustrated before), you may want to display them as :
Une fois que vous avez récupéré des traces GPS dans le monde entier (en utilisant cet appareil par exemple), vous commencez à vous demander ce que vous aller bien pouvoir en faire. Imaginez des milliers (des millions ?) de personnes se baladant autour du monde avec un GPS et mettant toutes ces traces sur un site. Est-ce qu’on n’aurait pas une bonne couverture ?
Provided you have the right receiver, GPS (Global Positioning System) enables you to know your current location. Most devices go a little bit further than that and can also record your track.