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Subject: Re: Geotagging app
Date: Mon, 06 Nov 2017 11:17:37 -0500
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In article <otq1id$ko7$1@gioia.aioe.org>, Mayayana<mayayana@invalid.nospam> wrote:

> 
> | Do your iPhone have a gyroscope? If not then it's obsolete for pinpoint
> | accuracy navigation!
> 
>  Don't allow cellphones have a gyroscope if they allow
> for changing orientation? And why is that needed
> for altitude? I assumed the iPhone was calling some
> service that uses the cell towers (or satellite?) for
> the data.

as usual, you assume wrong.

iphones have a gps, which can show altitude if it's tracking 4 or more
gps satellites, just as any gps would.

a gyro is not relevant.

>    But you know more than I do.

many people do.

>    I don't use an iPhone
> and can't imagine caring about altitude data for photos.
> As I said, this was not my phone. It was a friend taking
> pictures with an iPhone 6. Have you tested with your
> own phone for altitude accuracy? 

it depends on gps reception.