Leap motion device acquires the three-dimensional feature data :( hand right-handed Cartesian coordinate defined)
Pitch (pitch angle): the rotation about the X-axis range of -180 ° ~ 180 °
Yaw (yaw angle): Y-axis range of about -180 ° ~ 0 ~ 180 °
roll (roll angle): rotation about the Z axis range of -180 ° ~ 0 ~ 180 °