Spectra-precision Survey Pro v4.5 Ranger User Manual Manuel d'utilisateur télécharger pdf (Page 172)

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User’s Manual – Conventional Mode

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Traverse Adjust

The Traverse Adjust wizard will perform an

angle adjustment, a compass rule adjustment,

or both.

Angle Adjust

The Angle Adjust routine will compute the

angular error in a closed traverse from a

known closing angle. It will then distribute

that error equally among all of the internal

angles so that the resulting sum of the angles

will equal (N-2)·180° because the sum of the internal angles of any

closed polygon can be computed using this formula, where N is

the number of sides of the polygon.

After performing an angle adjustment, all of the points except

for the first two points will be adjusted. (The azimuth of the

first leg will remain constant.)

The closing angle provided is used to compute the angular error.

It is the angle as you occupy the closing point, aim toward the

second point and turn an angle-right to the second-to-the-last

traverse point (see illustration).

Note: An angle adjustment does not always adjust the closing

point to a location that is closer to the starting point.

Closing

Angle

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Spectra-precision Survey Pro v4.5 Ranger User Manual Manuel d'utilisateur Page 172

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