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Re: What does CMDeviceMotion do if there is no gyro?

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Re: What does CMDeviceMotion do if there is no gyro?

Subject: Re: What does CMDeviceMotion do if there is no gyro?
From: James Walker <email@hidden>
Date: Wed, 14 Sep 2011 11:54:34 -0700

On 9/14/2011 11:46 AM, Matt Neuburg wrote:

On Tue, 13 Sep 2011 14:39:29 -0700, James Walker<email@hidden> said:
The CMDeviceMotion Class Reference says "Because Core Motion is able to
track a device’s attitude using both the gyroscope and the
accelerometer, it can differentiate between gravity and user
acceleration."  But what does it do if the device does not have a
gyroscope
If the device lacks a gyroscope, the question doesn't arise - isDeviceMotionAvailable returns NO, device-motion services will be unavailable, and you're back to dealing directly with the accelerometer and interpreting it yourself. m.


I see, thanks.

--
  James W. Walker, Innoventive Software LLC
  <http://www.frameforge3d.com/>
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References:  
  >Re: What does CMDeviceMotion do if there is no gyro? (From: Matt Neuburg <email@hidden>)




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