To Create a Non-Tangential Curve in the Current Survey Figure

1. In Toolspace, on the Survey tab, right-click a named network Survey Command Window.
2. At the Command line, enter:

   XC AD BULB [radius] [chord angle] [chord distance]

   Note: Use the BULB parameter if the resulting curve is greater than 180 degrees.

Command Line Example

NE 1 1000 1000

NE 2 1000 1200

BEG ROADCL

TP 1

TP 2

XC ZD 100 45 120

SET 3

FIG DD 0 100

SET 4

XC AD 100 45 150

SET 5

END

The following illustrates a non-tangential curve:

Command Syntax

XC AD BULB [radius] [chord angle] [chord distance]

Parameter	Definition
radius	The distance from a center point to the curve. Enter this value in current survey database distance units. Use a negative radius to draw the curve in a counter-clockwise (left) direction.
chord angle	The clockwise angle to turn from the last vertex in the figure.
chord distance	The distance from the current vertex in the figure.