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Re: What does it mean when a map program wants my contacts?

From Poutnik <poutnik4nntp@gmail.com>
Newsgroups comp.mobile.android
Subject Re: What does it mean when a map program wants my contacts?
Date 2016-07-19 18:13 +0200
Organization A noiseless patient Spider
Message-ID <nmljja$85i$1@dont-email.me> (permalink)
References (8 earlier) <si1jobldjv0pkm7b22k4r3uab2047cf1l5@4ax.com> <nmhvj3$76v$1@dont-email.me> <7m8robtuiamato74turscpd9t5cnm4ige7@4ax.com> <nmkdpn$eas$1@dont-email.me> <mqlrobh586e7gjm0ujjnn9859hpgeb7qea@4ax.com>

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On 07/19/2016 09:56 AM, Micky wrote:
> On Tue, 19 Jul 2016 07:28:22 +0200, Poutnik <poutnik4nntp@gmail.com>
> wrote:
>
>
>> Most of GPS smartphones do have HW compass,
>
> Hardware?

Yes. I suppose it based on the 3 orthogonal Hall sensors or similar.

https://www.quora.com/How-does-a-compass-work-in-smart-phones-What-sensors-are-used-and-how-do-they-show-the-correct-directions

"Basically there are three major types: Hall Sensor, Anisotropic 
Magnetoresistive (AMR) or Giant Magnetoresistive (GMR).  ......."

Some phone compass calibration methods say
to make 1-2 phones turns around each of phones axis.
but usually a wild randum turning is enough to calibrate.

>
>> but even then they do not derive the heading course from it,
>> but from GPS, what is at the car speed more reliable.
>
> I'm sorry. I don't see what car speed has to do with it.   I'm still
> not turning any faster than if I were walking.    Less fast actually,
> because I've never skidded from turning sharply when walking.

The faster the car goes, the less noisy is GPS course
derived from the GPS position trend by Kalman filtering.

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Thread

What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-13 00:29 -0400
  Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-13 06:34 +0200
    Re: What does it mean when a map program wants my contacts? Aardvarks <aardvarks@a.b.c.com> - 2016-07-13 06:59 +0000
      Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-13 10:57 +0200
        Re: What does it mean when a map program wants my contacts? Aardvarks <aardvarks@a.b.c.com> - 2016-07-18 23:47 +0000
      Re: What does it mean when a map program wants my contacts? "s|b" <me@privacy.invalid> - 2016-07-13 14:05 +0200
        Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-13 23:50 -0400
          Re: What does it mean when a map program wants my contacts? "s|b" <me@privacy.invalid> - 2016-07-14 13:50 +0200
            Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-15 04:33 -0400
              Re: What does it mean when a map program wants my contacts? "s|b" <me@privacy.invalid> - 2016-07-15 15:20 +0200
                Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-15 14:54 -0400
                Re: What does it mean when a map program wants my contacts? "s|b" <me@privacy.invalid> - 2016-07-15 22:14 +0200
                Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-15 21:03 -0400
                Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-18 09:13 +0200
                Re: What does it mean when a map program wants my contacts? Aardvarks <aardvarks@a.b.c.com> - 2016-07-18 23:46 +0000
                Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-18 23:53 -0400
                Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-19 07:28 +0200
                Re: What does it mean when a map program wants my contacts? nospam <nospam@nospam.invalid> - 2016-07-19 01:39 -0400
                Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-19 07:51 +0200
                Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-19 08:43 +0200
                Re: What does it mean when a map program wants my contacts? nospam <nospam@nospam.invalid> - 2016-07-19 10:55 -0400
                Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-19 18:16 +0200
                Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-19 18:17 +0200
                Re: What does it mean when a map program wants my contacts? nospam <nospam@nospam.invalid> - 2016-07-19 12:21 -0400
                Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-19 03:56 -0400
                Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-19 18:13 +0200
                Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-21 23:51 -0400
                Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-22 06:54 +0200
                Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-27 02:09 -0400
                Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-27 09:06 +0200
                Re: What does it mean when a map program wants my contacts? tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2016-07-28 03:27 -0400
                Re: What does it mean when a map program wants my contacts? tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2016-07-22 02:25 -0400
                Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-22 08:37 +0200
                Re: What does it mean when a map program wants my contacts? nospam <nospam@nospam.invalid> - 2016-07-22 02:40 -0400
                Re: What does it mean when a map program wants my contacts? Poutnik <poutnik4nntp@gmail.com> - 2016-07-22 08:53 +0200
                Re: What does it mean when a map program wants my contacts? tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2016-07-16 00:03 -0400
                Re: What does it mean when a map program wants my contacts? M.L. <me@privacy.invalid> - 2016-07-18 16:41 -0500
                Re: What does it mean when a map program wants my contacts? tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2016-07-20 03:20 -0400
                Re: What does it mean when a map program wants my contacts? M.L. <me@privacy.invalid> - 2016-07-20 15:51 -0500
                Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-15 14:56 -0400
                Re: What does it mean when a map program wants my contacts? "s|b" <me@privacy.invalid> - 2016-07-15 22:17 +0200
                Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-15 21:05 -0400
              Re: What does it mean when a map program wants my contacts? Aardvarks <aardvarks@a.b.c.com> - 2016-07-18 23:47 +0000
            Re: What does it mean when a map program wants my contacts? Aardvarks <aardvarks@a.b.c.com> - 2016-07-18 23:47 +0000
        Re: What does it mean when a map program wants my contacts? Aardvarks <aardvarks@a.b.c.com> - 2016-07-18 23:47 +0000
          Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-18 23:56 -0400
          Re: What does it mean when a map program wants my contacts? "s|b" <me@privacy.invalid> - 2016-07-19 20:20 +0200
      Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-14 00:57 -0400
        Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-15 21:00 -0400
        Re: What does it mean when a map program wants my contacts? Aardvarks <aardvarks@a.b.c.com> - 2016-07-19 00:41 +0000
          Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-19 00:01 -0400
            Re: What does it mean when a map program wants my contacts? Aardvarks <aardvarks@a.b.c.com> - 2016-07-19 05:37 +0000
              Re: What does it mean when a map program wants my contacts? Micky <NONONObobbyburns1111@gmail.com> - 2016-07-19 03:30 -0400

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