STAR*NET V6 - Circe

Chapter 5 Preparing Input Data
DIRECTION SET DATA TYPES
The direction set data type lets you enter sets of directions observed from a station to two
or more other stations. Directions are not angles, they are simply pointing readings taken
with an instrument such as a direction theodolite. The direction set data types includes
three types of data lines. A set always begins with a “DB” line, continues with two of
more “DN” lines which are the readings, and ends with a “DE” line. An optional
“Description” on the “DB” line will display as a description in the “Directions” sections
of the output listing.
The “DB” , “DN” and “DE” Codes: Direction Sets
DB From Station Name [Direction Set Description]
DN To Station Name Direction [Standard Error]
DE
Example of the Direction Begin “DB” data line:
DB Post1 ‘Coyote Dam pins shot from control point 1
The “DB” data line begins a set of direction readings, and indicates the “From” station
name. This is the instrument station used to observe the series of directions. In this
example we begin a series of direction entries by setting up on “Post1.” An optional
description is entered describing the direction set.
Example series of Direction “DN” data lines:
DN A004 02-33-54
DN A005 34-56-11.6
DN A006 135-44-23 ‘Marker 700-98
The “DN” data line is used to enter the individual direction readings in the set. In the
example we entered a set of three directions. The first direction to station “A004” was
read as 02-33-54. No standard errors were entered for any of the readings, therefore the
default standard error values for directions, as set in the Project Options are assigned. A
descriptor is assigned to station “A006.”
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