Technical information

Working with Figures | 235
■ Transit Rule: A method of balancing a traverse where the closing errors are
assumed to be caused less by the errors in the observed angles than by the
errors in measured distance. Corrections are distributed according to the
ratio of the latitude and departure of each leg of the traverse to the sums
of the latitude and departures of the entire traverse.
■ Least Squares: A method of balancing a traverse. The squares of the dif-
ferences between the unadjusted and adjusted measurements (angles and
distances) are summed and reduced to a minimum.
This method weights the individual measurements according to the spec-
ifications set in the Equipment Correction settings to determine the
source of error. You can adjust the data for either an individual traverse
loop or a traverse network, if located from multiple observations.
Key Concepts
■ Traverses can be adjusted to correct closure error.
■ Any adjustment can update sideshots and figures located from that
traverse.
■ At each step in the adjustment process, you can print the results to analyze
and review.
■ Least Square adjustments can be two dimensional or three dimensional.
■ You can manually adjust traverse data that you enter using the Traverse
Editor, Survey Command Line, field books, batch files, data collector, or
Traverse/Sideshot menu commands.
Working with Figures
You can use the Survey Figure commands to draw lines and arcs that repre-
sent important line features in your survey. Each figure consists of points or
locations that have some sort of relationship to one another. They may
represent edges of pavement, roadway centerlines, ditches, streams, or
parcel boundaries.
TIP Using the Survey Toolspace interface, you can preview figures and also
obtain inverse and mapcheck information for figures. For more information, see
Survey Toolspace and Panorama in the online Help.
You can easily create figures as you enter data into your data collector. The
format for figure entry differs for various data collectors but you can enter all
figure commands into your data collector and then transfer this information
into a field book file.