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17. SETTING-OUT ARC
This mode allows the operator to define an arc from various arc parameters, such
as From Pt. coordinates, and set out this arc as well as points (offsets) along it.
An arc can be defined by inputting arc parameters such as arc radius, angle,
coordinates for the From point, Center point, To point etc. An arc can also be
defined by observation of the From point, Center point, To point etc.
PROCEDUREDefining by inputting coordinates
1. In the second page of the OBS
mode screen, press
[MENU]
, then
select "S-O arc".
2. Enter the instrument station data.
Station Data and Azimuth
Angle"
17.1 Defining an Arc
To Pt.
Offset
Tangent length
From Pt.
Radius
Intersection
Pt.
Back tangent
Angle
Direction
Center Pt.
REM
Area calc.
S-O Line
S-O Arc
PT to line
P-Project