Spectra Precision Survey Pro v3.80 Recon iPAQ Reference Manual - Manual (Page 176)

Survey Pro Reference Manual
R-170
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.
;
Store Pts : When checked, is the first point name that will be used
when storing the computed offset points. Additional points will
automatically be assigned with the next consecutive point name, such
as 8, 9, 10… or Offset, Offset2, Offset3…