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I sometimes wonder how many bugs are lurking in systems using GPS for navigation at 180th meridian (where longitude goes from 180 to -180).
by fest 7y ago
I sometimes wonder how many bugs are lurking in systems using GPS for navigation at 180th meridian (where longitude goes from 180 to -180).
- Symbiote 7y agoI crossed the antimeridian several times on a trip last year. I usually carry a GPS logger on such trips, to contribute to OpenStreetMap. My USB logger was OK, but my backup logging apps both added crazy points around the world. Programs to display / edit the tracks also had bugs. Even Google Maps has defects on the maps at the antimeridian.
- harshreality 7y agoThe F-22 had such problems. https://www.defenseindustrydaily.com/f22-squadron-shot-down-by-the-international-date-line-03087/ https://www.defenseindustrydaily.com/f22-squadron-shot-down-...
- fest 7y agoWhen I was working on geo-fencing feature for a small UAV I did see the consequences of naive maths when working with coordinates near antimeridian (e.g. calculating a perpendicular vector of a fence segment). Also related- it seems crazy to me how some teams are working on a robotic product without building/interating a simulator first!
- danaliv 7y agoIIRC there was a bug in an early version of a certain fighter jet where it would go inverted when crossing the equator. Oops.