This is the amount a section stack point moved during the best fit. This is critical to understanding the deviation amounts; they are not the deviation in the direction of the axis as measured, but exactly the opposite. Use the MULTIPLIER option in the Flavor file to reverse the output.
Alternatively stated: Offset given by user-defined best fit. (Relative to the CMM datum.)
It is also sometimes referred to as SHIFT or OFFSET.
Displacement is typically measured separately in X and Y directions, but can also be calculated as a true position (BOWT and STACKT).
Displacement can also be measured relative to a reference section. See "Relative Calculations".
More: