Spectra Precision Survey Pro v5.0 - Manual (Page 198)

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.
Traverse on Curve
[Curve] [Trav. on Curve]
The Traverse on Curve screen will compute the PT and radius point for a curve when the tangent azimuth at a PC
point is known.
The first known part of the curve is defined by one of the following:
[Radius]: is the distance from the radius point to the curve.
[Delta]: is the deflection angle.
[Degree Arc]: is the deflection angle that results in a 100-ft. arc length.
[Degree Chord]: is the deflection angle that results in a 100-ft. chord length.
The second known part of the curve is defined by one of the following:
[Delta]: is the deflection angle.
[Length]: is the arc length.
[Chord]: is the chord length.
[Tangent]: is the distance from the PC or PT to the PI.
[Mid Ordinate]: 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.
[PC Point]: is the point that defines the beginning of the curve (Point of Curvature).
[Azimuth] / [Bearing]: is the direction of the tangent at the beginning of the curve.
[Turn]: specifies if the curve turns to the Left or Right as you face the curve from the PC.
Survey Pro Help 5.00
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