Spectra-precision Survey Pro v4.6 Recon-Nomad Reference Manual Instrukcja Użytkownika Pobierz pdf (Strona 402)

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Survey Pro Reference Manual

R-394

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.

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