Haven’t been this excited about relearning to soar since I booked the class. When I left the sport hand held GPS trackers made such maps possible. The price:fun ratio was too high so I never used one. Now in Australia all aircraft fly with transmitters and can be tracked on the web. Maybe I’ll be tempted to email or post (tweet? what’s that?) the registration numbers before an afternoon flight, so those who like watching paint dry can follow along.
Back when I was flying a hang glider and learning more about GPS, I found a site where people posted 2D tracks of their hikes, bike rides, boat trips, etc., like the one above. Such ground tracks were done with the only decent freeware program. A fellow hang glider pilot was also a rocket scientist at JPL. Using MATLAB (very expensive software) he posted 3D perspective views of his flight tracks on the club’s website. With his permission, I posted 2 on the GPS users site. “HOW CAN WE DO THIS?!” they asked.
The next day the creator of the freeware program posted a new version that did it. Only took changing a value from Zero to 1. Originally, he hadn’t implemented it because of the additional processing power needed. He changed it because he was a former hang glider pilot.