Spectra Precision Survey Pro v4.5 Ranger Reference Manual - Manual (Page 372)

Survey Pro Reference Manual
R-364
Corner Angle
Cogo Corner Angle .
The Corner Angle screen provides information on the horizontal angle
created from three known points.
Backsight: is an end point of the angle to be
solved.
Middle Point: is the corner point of the angle
to be solved.
Foresight Point: is the other end point of the
angle to be solved
Select from Map… : Allows you to quickly
select all of the above points from a map view.
The first point tapped is entered in the
Backsight
field, the second in the Middle Point
field and the third point tapped is entered in the End Point field.
Solve : will compute the following results that describe the angle
defined by the three points provided.
Results
Angle left: is the horizontal angle created as you occupy the Middle
Point
, face the Backsight, and turn counterclockwise to the Foresight
Point
.
Angle right: is the horizontal angle created as you occupy the Middle
Point
, face the Backsight, and turn clockwise to the Foresight Point.
180 – right: is the angle that results from subtracting the angle right
value from 180°.
HD to Beg.: is the horizontal distance between the Backsight and the
Middle Point
.
HD to End: is the horizontal distance between the Foresight Point and
the Middle Point.