Spectra Precision Survey Pro v3.80 Recon iPAQ User Manual - Manual (Page 175)

Screen Examples
167
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.
1
2
3
4
5
6
Closing
Angle