This command allows you to offset a 3D polyline entity in both
the horizontal and vertical directions. There are four offset
methods. The Interval
method applies one horizontal and one vertical offset to all the
vertices of the polyline. The Constant method has a horizontal
offset and sets the elevation of the polyline to one constant
elevation. The Variable
method allows you to specify each horizontal and vertical offset
individually either by polyline segment or for each point. The
vertical offset can be specified by actual vertical distance,
percent slope or slope ratio.
Finally, the Surface
method allows you to offset the 3D Polyline to intersect a target
surface defined by a triangulation or grid file. This functions
much like the Design Pad
Template command on the
Surface menu, but without
creating side slope faces; only the intercept (or "daylight") line
is created.
Enter the offset method
[<Interval>/Constant/Variable/Surface]: press
Enter
Vertical/<Horizontal offset amount>: 15
Percent/Ratio/Vertical offset amount <0>: 10
Select a polyline to offset (Enter for none): select a 3D
poly
Select side to offset: pick a point
Select a point on the graphics screen that is in the direction of
the side of line to offset.
Select a polyline to offset (Enter for none): press
Enter
Pulldown Menu Location: 3D Data
Keyboard Command: offset3d
Prerequisite: 3D polylines to use for selection; surface
file for Surface
method.