Spectra Precision Survey Pro v4.5 Recon and Nomad Reference Manual - Manual (Page 244)

Survey Pro Reference Manual
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Projection Calculator
Survey Projection Calc. .
The Projection Calculator wizard is used to calculate scale factor or
convergence (rotation) for any point on the selected mapping plane.
You can use the computed values for calculations from the, Past
Results
power button option.
Projection
: displays the current mapping plane settings.
Select Point : is where you enter the name of the
reference point where the rotation or scale is to be
computed.
Calc Rotation > : opens the Projection Calculator screen
where the rotation is computed.
Calc Scale > : opens the Projection Calculator screen
where the scale is computed.