Orientation of one coordinate system relative to another is defined by a sequence of three successive rotations. Yaw, pitch, and roll define one such space-fixed rotation sequence. There are multiple ways to define this sequence.
Yaw, pitch, and roll angles in Motion Analysis results are the sequence of Z-, negative Y-, and X-axis rotation angles measured about the rotating coordinate system, relative to the global coordinate system.
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Yaw
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The first angle of rotation in the yaw, pitch, and roll sequence. Yaw measures the rotation about the Z-axis of the rotating coordinate system relative to the global coordinate system.
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Pitch
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The second angle of rotation in the yaw, pitch, and roll sequence. Pitch measures the rotation about the negative Y-axis of the rotating coordinate system relative to the global coordinate system after the yaw rotation has been applied.
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Roll
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The third angle of rotation in the yaw, pitch, and roll sequence. Roll measures the rotation about the X-axis of the rotating coordinate system relative to the global coordinate system after the yaw and pitch rotations have been applied.
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