Spectra Precision Survey Pro v4.5 Ranger Reference Manual - Manual (Page 149)

Survey Menu – Conventional Mode
R-141
Corner & Offset
Survey Corner & Offset .
The Corner and Offset screen is used to store a point using a
reflectorless total station for a point that cannot be shot directly, but
the offset(s) to the point can be measured from a reference line that
can be shot.
Foresight: is the name of the point that will be
stored.
Description: is the description for the point
that will be stored.
HR: 0.000: shows that no rod height will be
used with this routine since all shots are direct
reflectorless.
Horiz Offset: is the horizontal distance on the
line from Shot 1 to the new point. Select L if
the new point falls to the left of Shot 1, or select
R
if it falls to the right.
Perpendicular Offset: is the horizontal distance,
perpendicular to the reference line, from the line to the
new point (see diagram). A positive value extends
away from the total station where a negative value is
closer to the total station.
Elevation Offset: is the vertical offset from the line to
the new point. (See diagram.) A positive value will
result in a new point above the reference line and a
negative value results in a new point below the
reference line.
Shoot Line : will prompt you to take two shots on the
horizontal reference line.
Note: Each shot can be in any location on the reference line (Shot 1
can be to the left or the right of Shot 2), but the Horiz Offset is always
measured from Shot 1.
Line
Target
Shot 1
Shot 2
Corner & Offset
Horiz.
Offset (R)
Elevation
Offset (-)
Perpend.
Offset (-)