Reference Manual Owner manual
COGO Menu 
R-355 
Offset Line 
 Cogo   Offset Line. 
The Offset Line screen is used to view, store a polyline, or store an 
alignment that is at a specified perpendicular offset to an existing set 
of points, a polyline, or an alignment. 
 Tap Line… : allows you to tap an existing polyline or 
alignment that the offset will be computed from. 
 To/From… : 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. 
•  View result only: allows you to view the 
resulting line in the Map view without saving 
anything. 
•  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. 
•  Save to job as a Polyline: when checked, the computed 
offset line will be saved as a new polyline 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. 
Description: is the description that will be given to the new 
alignment or polyline. 
 Solve : computes and optionally stores the new offset line. 










