STAR*NET V6 - Circe

Example 6: (3D Data)
Chapter 5 Preparing Input Data
M 2-1-3 12-34-13 1102.42 89-13-12 & .03 10 5.25/5.55
Again, the same measurements, but now we have standard error values, plus an HI/HT
entry. Note that when four values are entered following the 3D measurements as shown
above, they are interpreted as three standard errors plus an HI/HT value.
As illustrated by the example 3D data lines above, you must either enter all three
standard errors on a data line, or leave them all out so that defaults are assumed. A single
item entered will be read as an HI/HT, three items as three standard errors, and four
items as the three standard errors plus an HI/HT entry. Any other combination will cause
an error message.
Example 7: (3D Data with Horizontal Distance and Elev Difference)
M 2-1-3 12-34-13 1102.31 15.22 5.2/5.1
In this example, the “Distance/Vertical Data Type” option in the Project Options has
been set to “Horiz Dist/Elev Diff.” The horizontal angle does not change, but now the
distance from station “2” to station “3” is a horizontal value of 1102.31, with a
difference in elevation of 15.22. (Station “3” is higher than station “2.”) Default standard
errors are assumed for all measurements. An HI/HT entry is included.
Example 8: Using the Special “?” Data Code
M 33-32-55 95-38-44.5 ? ? 4.5 & &
M 8-DUMMY-5 ? 1502.55 93-44-52 5.25/5.10
The question mark character “?” may be used in a measure line to indicate that a
particular item is missing (or not measured). The “?” code allows the “M” line to be used
for entering a variety of data types, making it helpful to users writing programs that
create STAR*NET data files.
In the first line above, the only observation defined is an angle, exactly the same as if an
“A” data type line had been entered instead. In the second line, we entered values only
for a distance and zenith angle, omitting the angle. These readings, for example, might be
those made for a backsight observation. Note that the string At-From-To is entered as “8-
DUMMY-5.” Since the turned angle entry is omitted, the backsight name is never used,
and can be named anything. We chose the name “DUMMY” to use here. This entry is
exactly the same as if a “DV” data type line as described in a later section had been
entered instead.
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