Spectra Precision Survey Pro v4.6 Recon and Nomad User Manual - Manual (Page 191)

Other Tutorials
181
RP
PT
PI
PC
Tan Of
fset
Current
Station
Tan Dist.
Tangent
Tan - TD
Tangent Offset
The Tangent Offset method computes a
perpendicular offset length (Tangent
Offset) from the PC-PI line to the current
station and the distance on the PC-PI line
from the PC to the Tangent Offset
(Tangent Distance).
RP
PT
PI
PC
Current
Station
Chord
Offset
Chord Dist.
Chord Length
PC Deflection
Chord Offset
The Chord Offset method computes a
perpendicular offset length from the PC-PT
line to the current station (Chord Offset),
the distance on the PC-PT line from the PC
to the chord offset (Chord Distance), the
distance from the PC to the current station
(Chord Length) and the deflection angle
from the PC-PT line to the PC-Station line.