On Sun, Jan 10, 2010 at 2:14 AM, Andrew Errington < [email protected]> wrote:
> > I don't know what a "course" is, and I haven't looked. > Courses are supported by training/racing-oriented Garmin devices and add timing information, to allow better time estimates, and to give the user a target time. http://wiki.motionbased.com/mb/Courses > > In summary, if you want to go somewhere with the GPS then plot the route > on your map and make a GPX file containing a "route". Download the route > to the GPS and it should do the rest. > > Yeah, though that relies on the data being fully routable. It seems the trade-off is: Track: - WYSIWYG (the track on the gps is exactly what you created on the computer) - totally independent of map data quality - Can be as long and complicated as you like Route: - Gives better instructions ("left at the next roundabout") etc - Easier to create and manage I tried both this weekend and found routes weren't reliable enough. Sometimes you'd get a "route calculation error". Also, my GPS doesn't support routes with more than 50 waypoints. It seems a lot simpler just to create a track and be done with it. Steve
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