STAR*NET V6 - Circe

Chapter 5 Preparing Input Data
Example of Direction End “DE” data line:
DE
The “DE” data line is used simply to end a set of directions, and contains no data.
The “DM” Code: Direction with All Measurements to Another Station
Format for 2D Data:
DM To Sta Name Direction Distance [Std Errs]
Formats for 3D Data - Depending on the “Distance/Vertical Data Type” mode:
DM To Sta Name Direction Slope Dist Zenith [Std Errs] [HI/HT]
DM To Sta Name Direction Horiz Dist Elev Diff [Std Errs] [HI/HT]
The “DM” data type is used in the same fashion as the “DN” data type. The difference
between the two data types is that the “DM” line includes all other measurement data
needed to define the station being shot. This includes the distance, and if entering 3D
data, a zenith angle or elevation difference.
You can intermix “DM” lines and “DN” lines in the same direction set.
Typical Example: (3D Data with Slope Distance and Zenith Angle)
DM 3 12-34-13 1346.33 91-55-31 5.25/5.55
Pointing to “3”, the direction reading is 12-34-13. The slope distance and zenith angle
measured to “3” are both given. Default standard errors are assumed for all the
measurements and an HI/HT entry is made.
Only a single typical 3D example of a “Direction with Measurements” line is given
above. The rules for entering 2D and 3D data lines for these data type lines are exactly
the same as those previously discussed for the “M” Measure data line.
See the “M” data type line for full details on 2D and 3D data, entering standard errors,
and entering instrument and target heights. Likewise, the same rules apply for the
interpretation of distance and vertical observation data entered depending on the mode
setting of the “Distance/Vertical Data Type” option in the Project Options. This mode
can also be changed anywhere in your data by using the “.DELTA ON/OFF” inline
option. For more details see “Using Inline Options” later in this chapter.
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