About Centerline Commands

The following table lists the centerline-related Autodesk Civil 3D survey commands and briefly describes their functionality.

Note: These commands must be entered in the Survey Command Window. For more information, see Survey Command Window.

Command	Description
CL IS [figure] (station) (point)	Defines a centerline
CL INV [point 1] (point 2)	Displays point data in reference to the current centerline
CL PT (point) [station] (offset) (skew angle) (description)	Creates a new point by station offset
CL PT BY [point] [station 1] [offset] [distance] (station 2) (description)	Creates points at an increment along the centerline
CL ELEV (point) [station] [offset] [elevation] (description)	Creates a point by station, offset, and elevation
CL ROD (point) [station] [offset] [rod] (description)	Creates a point using station, offset and rod height
CL VD (point) [station] [offset] [vertical distance] (description)	Creates a point along a centerline using a vertical distance
HI [elevation]	Defines the height of instrument
XS [station]	Sets the current cross section station
XS ELEV (point) [offset] [elevation] (description)	Creates a point with offset and elevation from the current cross section
XS ROD (point) [offset] [rod] (description)	Creates a point by offset and rod height from the current cross section
XS VD (point) [offset] [vertical distance] (description)	Creates a point by offset and vertical distance from the current cross section