Spectra-precision Survey Pro v4.5 Ranger Reference Manual User Manual Page 393

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Curve Menu
R-385
RP
PT
PI
PC
Current
Station
Deflection
PI to Station
PI Deflection
PI Deflection: provides deflection
angles and distances to each station on
the curve as if occupying the PI and
backsight the PC. The results are given
in the following format:
o Station: is the current station on
the curve.
o Deflection: is the angle to turn to
the current station.
o PI to Station: is the distance from
the PI to the current station.
RP
PT
PI
PC
Tan Offset
Current
Station
Tan Dist.
Tangent
Tan - TD
Tangent Offset
Tangent Offset: provides perpendicular
offset information from the tangent (the
line from the PC to the PI) for each
station on the curve. The results are
given in the following format:
o Station: is the current station on
the curve
o Tan dist (TD): is the distance on
the tangent, from the PC to the PI,
or the PI to the PT, where the
perpendicular offset occurs.
o Tan offset: is the distance,
perpendicular to the tangent, to the
curve at the particular station.
o Tan: is the length of the tangent
(the distance from the PC to the PI).
o Tan – TD: is the distance on the
tangent, from the PI to the PC, or
the PI to the PT, where the offset
occurs
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