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Add/edit line add/edit curve, Add/edit line, Add/edit curve – Spectra Precision Survey Pro v4.9 User Manual

Page 194: Screen, Add / edit line, Add / edit curve

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Perimeter: is the length of the boundary from the first point to the last point, plus any additional length between the
last point and the first point.

Error dist.: is the distance between the last point and the first point.

Error azm: is the direction from the last point to the first point.

Precision: is the ratio between the Error distance and Perimeter.

Add / Edit Line

[Cogo] [Map Check] [Add Line…]

The Add / Edit Line screen is used to enter a new line to the list prior to the selected line segment.

[Azimuth] / [Bearing]: is the direction of the line.

Length: is the length of the line, in feet or meters.

: enters the line to the list.

: closes the screen without entering any new line data.

Add / Edit Curve

[Cogo] [Map Check] [Add Arc…]

The Add / Edit Curve screen is used to enter a new curve to the list prior to the selected line segment.

[Radius]: The distance from the radius point to the curve.

[Delta]: The internal angle from center to tangent points.

[Degree Arc]: The internal angle equivalent to a 100-ft arc length.

[Degree Chord]: The internal angle equivalent to a 100-ft chord length.

[Length]: The arc length.

[Chord]: The chord length.

[Tangent]: The distance from the PC or PT to the PI.

[Mid Ordinate]: The distance between the curve and the chord at the center of the curve's length.

[External]: The minimum distance between the PI and the curve.

[Azimuth] / [Bearing]: defines the direction of the curve, tangent at the PC.

Turn: defines if the curve turns to the Left or Right while viewing the curve from the PC Point.

: appends the curve to the list.

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