On 9/14/2011 11:46 AM, Matt Neuburg wrote:
On Tue, 13 Sep 2011 14:39:29 -0700, James Walker<jam...@frameforge3d.com>  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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