STAR*NET V6 - Circe

Chapter 5 Preparing Input Data
SINGLE OBSERVATION DATA TYPES
The following types of data lines are used to define a single measurement: an angle, a
distance, a vertical observation, or a bearing or azimuth.
The “A” Code: Horizontal Angle
A At-From-To Angle [Std Error]
Stations defining an angle can be entered as At-From-To or From-At-To. You indicate
which order you have chosen by a setting in the Project Options. You may also change
the input order anytime in your data using the inline “.ORDER” option.
Example 1:
A 3-2-4 102-34-12.5 2.5
The clockwise horizontal angle at station “3”, turning from station “2” to station “4” is
102-34-12.5, and its standard error is 2.5 seconds.
Example 2:
A 3-2-4 102-34-12.5
Same as above, except that no standard error is entered. The default standard error for
angles as set in the Project Options is used.
Example 3:
A 3-2-4 102-34-12.5 ! ‘POST
Same as above, except the angle will be held fixed in the adjustment because of the “!”
symbol entered as the standard error. A descriptor is assigned to station “4.”
Example 4:
A 3-2-4 -102-34-12.5
This illustrates entering a counter-clockwise angle (entered negative).
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