StarNet v6 manual - Engineering Surveyor

Chapter 4 Options
Creating a Ground Scale File from the “Other Files” Options
The purpose of the “Create Ground Scale Coordinate (GND) File” in the Other Files
options dialog is to compute a set of ground coordinates by scaling, rotating and
translating the adjusted coordinates during the adjustment run. In some cases, the user
may want to create another set of coordinates that are rotated to a different basis of
bearings. In other cases, the user may want to create another set of coordinates scaled-toground
from the adjusted grid coordinates to use for construction.
To set parameters for the “Create Ground Scale Coordinate (GND) File” item feature
described on page 31, press its “Settings” button to bring up its settings dialog.
During the adjustment, a file with the name of your project plus a GND extension (for
example, SouthPark.gnd) is created using the parameter settings described below.
The dialog consists of settings for three functions - scaling, rotation and translation.
Select which functions to perform by checking one or more of the columns.
Scaling: The scaling function is performed by dividing the adjusted coordinates by a
factor, either a given value or one that is computed. If the job is “local,” the factor is
always a given value. For a “grid” job, the value can be selected as one of three ways.
� Given Factor – If you already know a combined grid factor for the area you want
coordinates created for, entered this value.
� Computed at Station – Enter a station name, and then during the adjustment,
STAR*NET will use the combined grid factor computed at this point as the value.
� Computed Average – This selection causes the average combined grid factor for all
points in the job computed during the adjustment to be used.
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