Mathias Agopian 7badd2c402 allow rotation-vector to have 4 components
- upadte documentation for rotation vector
- update method dealing with rotation vector to deal with 4 components
- virtual rotation-vector sensor reports all four components
- improve SensorManager documentation layout

Whent he 4-th component of the rotation-vector is present, we can save
a square-root when computing the quaternion or rotation matrix from it.

Change-Id: Ia84d278dd5f0909fab1c5ba050f8df2679e2c7c8
2010-11-30 14:07:09 -08:00
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2010-10-01 12:54:10 -07:00
2010-11-03 15:32:40 -05:00
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