Spectra Precision Survey Pro CE v3.6 User Manual - Manual (Page 321)

Survey Pro Reference Manual
R-164
Offset Line
&RJR 2IIVHW /LQH 
The Offset Line screen is used to store points or an alignment that is
parallel to an existing set of points, a polyline, or an alignment, at a
specified perpendicular offset.
Note: When storing points, the number of new points stored will
equal the number of points in the selected polyline or point range. If
the offset is from an alignment, the number of points stored will equal
the number of nodes that occur in the horizontal portion of the
alignment.
7DS /LQH« : allows you to tap an existing
polyline or alignment that the offset will be
computed from.
7R)URP« : allows you to enter a range of points
that define the line where the offset will be
computed from.
Offset : defines the offset distance and which side
the offset occurs. The right or left side is
referenced from the first point that defines the
specified line.
;
Save to job as an alignment : when checked, the computed offset
line will be saved as a new alignment under the name specified in the
Description field.
Note: Spiral curves cannot be generated in a new offset alignment. If
the original centerline contains any spiral curves, they will be treated
as straight sections in the offset alignment that is created. The Offset
Staking or Offset Points routine should be used to stake offsets from a
spiral curve.