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Chapter 5
Origin Points and Reference Axes
26
The positional and orientation data generated by the control unit are
based on the 3D origin points and reference axes. In Figure 5-4, the
transmitter's origin point and reference axes are defined by the
following:
• X
is an imaginary reference axis that passes through the center of
T
the transmitter's lower left speaker and through the center of the
transmitter's lower right speaker. (Only the positive direction of this
is shown in Figure 5-4.)
• Y
is an imaginary reference axis passing through the center of the
T
transmitter's top speaker and is perpendicular to X
• Z
is an imaginary reference axis perpendicular to both X
T
• The transmitter's origin is the point where X
Also in Figure 5-4, the receiver's origin point and reference axes are
defined by the following:
• X
is an imaginary reference axis passing through the center of the
R
receiver's lower left microphone and through the center of the
receiver's lower right microphone. (Only the positive direction of
this axis is shown in Figure 5-4.)
• Y
is an imaginary reference axis passing through the center of the
R
receiver's top microphone and is perpendicular to X
• Z
is an imaginary reference axis perpendicular to both X
R
• The receiver's origin is the point where X
Note
The transmitter's and receiver's origin points and reference axes
described above also apply to the 3D Mouse transmitter and
receiver.
.
T
and Y
T
, Y
, and Z
intersect.
T
T
T
.
R
and Y
R
, Y
, and Z
intersect.
R
R
R
.
T
.
R
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