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.

--
matt neuburg, phd = m...@tidbits.com, <http://www.apeth.net/matt/>
A fool + a tool + an autorelease pool = cool!
Programming iOS 4!
http://www.apeth.net/matt/default.html#iosbook_______________________________________________

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