Spectra Precision Survey Pro v3.80 Recon iPAQ Reference Manual - Manual (Page 201)

Curve Menu
R-195
• ([WHUQDO : is the minimum distance between the PI and the curve.
PC Station : is the starting station assigned to the PC.
; Interval : When checked, all necessary information for each station
at the specified interval on the curve will be computed.
Start station : when not computing by interval (above), only the
information for the particular station entered here is computed.
6ROYH : will solve and display all the details of the specified curve,
without the layout information.
6WD : decreases the current station by the station interval.
6WD : increases the current station by the station interval.
/D\RXW : will solve and display the layout information for all the
stations of the specified curve.
Results
Radius : is the distance from the radius point to the curve.
Length : is the arc length.
Chord : is the chord length.
Delta : is the deflection angle.
Tangent : is the distance from the PC or PT to the PI.
Mid Ord. : is the distance between the curve and the chord at the
center of the curve’s length.
External : is the minimum distance between the PI and the curve.
Deg. Arc : is the deflection angle that results in a 100-ft. arc length.
Deg. Chord : is the deflection angle that results in a 100-ft. chord
length.
Segment : is the area between the arc length and the chord.
Sector : is the area between the arc length and the two edge radii.
Fillet : is the area between the arc length and the tangents.