beautypg.com

Compass rule, Adjust sideshots, Adjust elevations – Spectra Precision Survey Pro v4.6 Recon and Nomad User Manual User Manual

Page 203

background image

Other Tutorials

193

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.