Yes, it was supposed to be an alternative graphic for a cockpit radar display in a jet fighter. The goal for any such display is to convey maximum information at a glance. I got feedback from a fighter pilot who said he wouldn't use it. Most people don't think in 3D, they think in 2D. Pilots have to think in 3D to some extent, but in a battle a fighter pilot wants to know what they immediately need to pay attention to, which is usually something heading directly at them (another jet or missile) and they mostly want to know the direction it is coming from, not so much what its altitude is. I made the path histories fade out so they didn't get too long and clutter the screen. The vertical bars were calibrated to indicate a specific distance so they also gave an idea of velocity. It would be possible to add/remove things from the display based on some automatic assessments of priority (i.e., remove everything not headed at the pilot, though having things appear and disappear can be confusing also). The aircraft icons were actual wireframe models representing the type of the aircraft, but had to be oversize to see them, which added some confusion also. The pilot found a fixed size icon with a few numbers next to it and highlighting for approaching/receding much more useful. Took me a long time to digitize them with just a ruler. While such a display may not have a technical use, it might be useful in advertising, showing travelers at an airport what is going on around the airport at the moment for example.