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Apple Maps claims it's 29,905 miles away

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Re: Apple Maps claims it's 29,905 miles away

#71

While we're on the subject of maps-related bugs, I was recently borrowing a new Tesla Model Y and took it on a RORO ferry. After the crossing, the car’s GPS was convinced I was still at the port where I had departed from. I restarted it a couple of times, but nothing. I drove off using Waze on my phone instead of the car's navigation. The map on the car kept moving relative to the direction I was driving, so the navi…

As you're mentioning a RO/RO ferry, recently, and Europe... are you sure you weren't in a GPS-denied environment, where the car (correctly) detected that GPS was jammed or spoofed and ignored it?

It was further west than you typically see significant GPS jamming, and GPS on other devices was fine.

Re: Apple Maps claims it's 29,905 miles away

#72
post #41

While we're on the subject of maps-related bugs, I was recently borrowing a new Tesla Model Y and took it on a RORO ferry. After the crossing, the car’s GPS was convinced I was still at the port where I had departed from. I restarted it a couple of times, but nothing. I drove off using Waze on my phone instead of the car's navigation. The map on the car kept moving relative to the direction I was driving, so the navi…

Looks like others have reported similar issues. Entering a navigation route may help? https://teslamotorsclub.com/tmc/threads/map-location-and-rou...

> Entering a navigation route may help?

Didn't work for me.

Re: Apple Maps claims it's 29,905 miles away

#73
post #34

Earlier quoted context omitted.

My guess would be: 1. Car entered ferry, loses GPS 2. Car entered dead reconning mode used for tunnels and such 3. Car left ferry, acquired GPS Then either: 4a. Location via dead reconning vasty disagreed with GPS because the car doesn't know about the ferry's movements, triggering some kind of failsafe. Or: 4b. There's just a plain old bug in the condition to switch back to GPS and maybe people haven't noticed becau…

It probably doesn't do dead reckoning even in tunnels And maybe the system sucks to get the GPS almanac if badly desynced

TomTom's have for at least 15 years or so. They have accelerometers to measure the motion when cut off from the GPS satellites. I worked there, knew the guy who developed it, and saw him give a presentation about it.

Re: Apple Maps claims it's 29,905 miles away

#74
post #56
post #54

The most annoying thing about iPhone Maps for me is the inaccuracy of the direction indicator. I've googled and it doesn't seem to be a universal complaint even though I've experienced this on multiple devices over the years even after following instructions to re-calibrate multiple times. Maybe I've just been unlucky. It intensely frustrating to use maps for direction finding while walking or cycling when the app is…

That's a phone compass problem no? Perhaps the specific way you're holding the phone is confusing for the algorithm?

You're holding it wrong part 2?

Re: Apple Maps claims it's 29,905 miles away

#75
post #54

The most annoying thing about iPhone Maps for me is the inaccuracy of the direction indicator. I've googled and it doesn't seem to be a universal complaint even though I've experienced this on multiple devices over the years even after following instructions to re-calibrate multiple times. Maybe I've just been unlucky. It intensely frustrating to use maps for direction finding while walking or cycling when the app is…

On my past iPhones, the compass always got screwed up over time somehow. Sometimes recalibrating fixed it, but only for a minute.

Yep - exactly what I’ve experienced. Calibrate the compass and at least it’s within a right angle of being correct. But the problem returns.

Re: Apple Maps claims it's 29,905 miles away

#77
post #54

The most annoying thing about iPhone Maps for me is the inaccuracy of the direction indicator. I've googled and it doesn't seem to be a universal complaint even though I've experienced this on multiple devices over the years even after following instructions to re-calibrate multiple times. Maybe I've just been unlucky. It intensely frustrating to use maps for direction finding while walking or cycling when the app is…

Settings - privacy - location services - system services - compass calibration. Make sure it’s enabled. In a bout of paranoia I disabled location for everything I didn’t recognize as necessary and then it took me many months to find out why compass cone behaves funny in mapping apps.

Re: Apple Maps claims it's 29,905 miles away

#78
post #75

Earlier quoted context omitted.

On my past iPhones, the compass always got screwed up over time somehow. Sometimes recalibrating fixed it, but only for a minute.

Yep - exactly what I’ve experienced. Calibrate the compass and at least it’s within a right angle of being correct. But the problem returns.

Was it serviced? In some models they used to have a non-ferrous screw put next to the compass, if a tech puts the wrong one in it will not calibrate.

Re: Apple Maps claims it's 29,905 miles away

#79
Tangentially, why won't computerized maps - e.g., Apple Maps, Google, etc. - show a scale? Generally they'll show one as you pinch/zoom, but it disappears when you release your fingers.

Sometimes I just want to eyeball distances, and not plug in addresses and request routes for everything.

I know not everyone always wants it, but a scale is a fundamental feature of mapping! Scale almost defines mapping.

Edit: One reason I ask is because I suspect some technical limitation.

Re: Apple Maps claims it's 29,905 miles away

#80
post #63
post #60

Earlier quoted context omitted.

>(This is probably because Google Maps can be used for walking/biking too) Please don't do that. The map is simply not good enough and does not have enough context (road quality, terrain, trail difficulty) for anything but very causal activity. Even then I highly recommend to use a proper map, electronic or paper.

yeah I'm not gonna open some paid trail map or buy a paper map so I can walk across my local city park and give my friends a pin to find me...

I've found Organic Maps to be better than any paid app for hiking (and I've tried a bunch) for what it's worth
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