Spectra-precision Survey Pro v3.80 Recon iPAQ Reference Manual Uživatelský manuál Strana 198

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Survey Pro Reference Manual
R-192
Horizontal Curve Layout
The Curve Layout screen is used to assist in the layout of a horizontal
curve by computing the direction and distance to points on the curve
using a variety of methods.
Method
: The method determines how the points on the
curve are laid out. Each method is described below.
PC Deflection
: provides deflection angles and
distances to each station on the curve as if
occupying the PC and backsighting the PI. 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 curren
t
station.
o
Long chord
: is the distance from the PC to
the current station.
o
Short chord
: is the distance from the
previous station to the current station.
RP
Chord
PT
PI
PC
Deflection
Current
Station
PC Deflection
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