2011

The following table outlines the valid constraint objects and points:
CharacteristicsValid Objects or Points
Pair of lines
■ When two lines are selected, the angle
between the lines is constrained. The
Pair of polyline segment
Three constraint points
initial value always defaults to a value
less than 180 degrees.
Arc
■ When three constraint points are spe-
cified, the following applies:
■ First point — angle vertex
■ Second and third points — end-
points of the angle
■ When an arc is selected, a three-point
angular constraint is created. The angle
vertex is at the center of the arc and
the angle endpoints of the arc are at
the endpoints of the arc.
List of Prompts
The following prompts are displayed.
Select first
line on page 512 or arc on page 512 or [3Point on page 512] <3Point>:
Pick a line, or an arc, or three points to be constrained
Line
Selects a line object.
First Line Specifies the first line to be constrained.
Second Line Specifies the second line to be constrained.
Dimension Line Location Determines where the dimension line is located
on the constrained object.
Arc
Selects an arc and constrains the angle.
Dimension Line Location
Dimension Line Location on page 512
3Point
Selects three valid constraint points on the object.
Angle Vertex Specifies the angle vertex, which is at the centerpoint of the
constraint.
512 | Chapter 5 D Commands