Why aren't there GyroScope Events on 3GS?

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Francois Laberge

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Nov 27, 2010, 8:28:06 PM11/27/10
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hi,

I don't follow why iOS devices such as iPhone 3GS don't receive Gyroscope related events. Google Maps on my 3GS has Directional Detection. Anyone have an idea, or am I wrong somewhere?

I haven't gotten around to testing it yet. I just found that fact stated.

Francois

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Alex Zylka

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Nov 27, 2010, 8:52:25 PM11/27/10
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I'm pretty sure that the 3GS doesn't have a gyroscope. It's new on the i4 and the ipt4.

Alex Zylka
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Francois Laberge

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Nov 27, 2010, 8:56:30 PM11/27/10
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Then how does Google Maps figure out which way I'm facing?

Francois Laberge

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Nov 27, 2010, 8:56:46 PM11/27/10
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On my 3GS specifically is what I meant.

Alex Zylka

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Nov 27, 2010, 8:59:55 PM11/27/10
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It's got a 3-axis magnetometer in it.


Alex Zylka
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Francois Laberge

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Nov 27, 2010, 9:03:01 PM11/27/10
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Is that the accelerometer you are talking about? Is there a way to figure out your facing direction? Cause I would love that. As far as I can tell, there is no way of detecting which way an iPhone is facing relative to due North. Yet Google Maps seems to be able to. 

Francois Laberge

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Nov 27, 2010, 9:04:04 PM11/27/10
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Ah, never mind. Finally found it in the specs. Digital Compass is the magentometer you were talking about. Which is not exposed to Mobile Safari. Damn.

Chrilith

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Dec 3, 2010, 3:28:24 PM12/3/10
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Hi,

GoogleMaps may use the direction property provided by the Geolocation
API but this information is only available while moving (because you
at least 2 points to find a direction of course)

-Chris


On Nov 28, 2:28 am, Francois Laberge <francoislabe...@gmail.com>
wrote:
> hi,
>
> I don't follow why iOS devices such as iPhone 3GS don't receive Gyroscope
> related events. Google Maps on my 3GS has Directional Detection. Anyone have
> an idea, or am I wrong somewhere?
>
> I haven't gotten around to testing it yet. I just found that fact stated.http://www.mobilexweb.com/blog/safari-ios-accelerometer-websockets-html5
>
> Francois
>
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>  <http://twitter.com/francoislaberge><http://linkedin.com/in/francoislaberge><http://facebook.com/endergen>
> *Address:*

Francois Laberge

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Dec 3, 2010, 3:38:17 PM12/3/10
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Thanks.

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