WorldViz PPT-E, Operating Instructions Manual, Page: 133 / 163

WorldViz Peripherals
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Marker Seperation: This is the distance between the two LED lights on the PPT
Eyes device. By default this should by 195 mm. Do not change this unless instructed
to by Worldviz support, or if you have built your own custom LED device.
Separation Tolerance: This is the maximum absolute difference between the
observed distance of the two LED lights on the PPT Eyes device and the Marker
Separation value can be. PPT Eyes will fail to detect the device if this tolerance is
exceeded.
Assume User Always Facing Forwards: By default this mode should be turned
off. The standard operating mode allows the user to rotate around and attempts to
guess which direction PPT north is located. If you enable always facing forwards
mode, it will be impossible to look more than 90 degrees from PPT north, and no
previous information will be used to auto-detect the direction.
Use MarkerID: If you are using MarkerID-based markers, then you can skip the
need to detect markers based on separation, and can use the IDs directly. This mode
is only useful if you have built your own custom LED device, and should not be used
with the standard PPT Eyes device.