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These things are not clear. What are the units of 1.Data given by (CMGyroData) basically x,y and z?

What is the minimum and maximum variation of one axis data(For eg, x axis)

Does this x data represent the rotation(or swing) around the x axis?

sam
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1 Answers1

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The place to look is the documentation: http://developer.apple.com/library/ios/#documentation/CoreMotion/Reference/CMGyroData_Class/Reference/Reference.html.

x

The X-axis rotation rate in radians per second. The sign follows the right hand rule: If the right hand is wrapped around the X axis such that the tip of the thumb points toward positive X, a positive rotation is one toward the tips of the other four fingers.

etc.

Oliver Charlesworth
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  • Thank you! I have a small question for you! When i store gyro data to an array and try to log them using NSlog, it shows upto 6 decimal places? Can't i increase the number of decimal places it shows? – sam Jun 02 '12 at 19:21