Spectra Precision Survey Pro v4.6 Ranger User Manual - Manual (Page 185)

Other Conventional Surveying Tutorials
175
Compass Rule
The Compass Rule Adjustment will adjust either a closed or an open
traverse. When adjusting a closed traverse, the error between the
closing point and the initial point is computed and distributed among
each traverse point, except the initial point resulting in a perfect
closure. When adjusting an open traverse, the error between the
final point’s actual location and specified theoretical location is
computed and distributed among the traverse points in the same way
as with a closed traverse.
Typically the Angle Adjust option should also be selected to remove
the angular when performing a compass rule adjustment.
Adjust Elevations
The Adjust Elevations option only applies when performing a Compass
Rule adjustment. If this option is selected, the elevations for the
adjusted points will also be adjusted along with the horizontal
coordinates resulting in perfect closure vertically as well as
horizontally. If this is unchecked, the traverse will only be adjusted
horizontally.
Adjust Sideshots
The Adjust Sideshots option allows you to also adjust any side shots
that were stored while occupying any of the traverse points in the
selected traverse.
The side shots that will be adjusted are determined by the
information stored in the raw data. Because of this, the end user
cannot explicitly define which side shots to include or exclude from
the adjustment.
The side shots are adjusted by first computing the new locations of
the traverse points, which are the occupy and backsight points for the
side shots. The routine will then read the original angles and
distances recorded for each side shot and apply those measurements
to the adjusted locations of the appropriate traverse points.