Garmin

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Bazoaxe Sep 2020 7:52am, 25 Sep 2020 17,653 posts	Bazoaxe Correction. Close the app and restart and it works.
Spanners99 Sep 2020 7:54am, 25 Sep 2020 226 posts	Spanners99 Not working for me. website appears down too.
larkim Sep 2020 8:27am, 25 Sep 2020 12,092 posts	larkim How does that lap calibration thing work then for a track? Does it make an assumption that if it finds you returning to the same spot (having told it you are in lane 2) that you've run 407m and then match a nice track trace to the run, rather than rely on the actual GPS points recorded? What if you want to run reps of (say) 250m in lane 4 starting from the 100m start line - do you tell it in advance what pattern you want to run to?
SPR Sep 2020 8:39am, 25 Sep 2020 31,677 posts	SPR Calibrate in any lane (tell it what lane you're in and run two laps). From this it indexes the track. After that, just tell it what lane you're working out in and it will do the rest. It presumes you're always in that lane though but you can switch lane mid workout from what I've read but not tried. In my calibration run I actually had no choice but to go into lane 4 (calibration was done in lane 5) for a brief moment on the back straight. You'd hope as I did two laps it could ignore that moment though otherwise why wouldn't one just work?
SPR Sep 2020 8:42am, 25 Sep 2020 31,678 posts	SPR I presume that there's a bunch of GPS points that now end up as about 300m if you say you're running in lane 1 and run from the 1500 start to the finish, which is what I did yesterday.
SPR Sep 2020 8:52am, 25 Sep 2020 31,679 posts	SPR Larkim - My calibration run is on ~~strava~~ and you can see it looks like a normal wonky run on track. Then the session map is super smooth. It also shows off that ~~strava~~ track segments should probably be edited when this feature become widely available. I had a quick look in my watch and there's a track folder with a FIT file for the track. Would be interesting to see how it works. I would be nice to be able to use an old activity to calibrate somehow for Nuneaton for example where I have done a few races already.
larkim Sep 2020 9:09am, 25 Sep 2020 12,093 posts	larkim I'm still a bit confused as to how it uses that info though. I can see how if you calibrate it and physically confirm your laps as you pass the standard finish line with the info as to which lane you are in it can definitely compute your precise distance, but if you don't start from a specific marker that the watch knows about and you run an incomplete lap, how does it know your distance with any precision, other than making sure it draws a nice curve when it posts it to ~~strava~~ or anywhere else?
SPR Sep 2020 9:15am, 25 Sep 2020 31,680 posts	SPR Obviously I don't know how they do it but it doesn't seem all that hard to me to map a GPS point to a distance based on the lane. Your calibration lap gives it markers, it then builds a library of all 8 lanes (via GPS points I presume) in its database.
SPR Sep 2020 9:17am, 25 Sep 2020 31,681 posts	SPR BTW I didn't press lap at all on calibration. Just start and stop.
SPR Sep 2020 9:25am, 25 Sep 2020 31,682 posts	SPR My calibration started from start finish line. It probably doesn't need to though, just needs full laps