Spectra Precision Survey Pro v4.5 Recon and Nomad Reference Manual - Manual (Page 366)

Survey Pro Reference Manual
R-358
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.