Causes two or more line segments to lie along the same line.
Access Methods
Button
Toolbar: Drafting tool set 
Parametric tool group Geometric Constraints flyout Collinear Menu:
Parametric
Geometric Constraints
Collinear
Summary
This command is equivalent to the Collinear option in GEOMCONSTRAINT.
Following are the valid constraint objects and points:
- Line
- Polyline segment
- Ellipse
- Multiline text
List of Prompts
The following prompts are displayed.
Select first object or [Multiple]: Select an object or enter m to select multiple points or objects
Object
Selects an object to be constrained.
- First object
-
Selects the first object to be constrained.
- Second object
-
Selects the second object to be constrained.
Multiple
Picks successive points or objects to be made collinear with the first object.