A collinear relation can exist between two lines, axes or chamfers; and between a line, axis or chamfer and a coordinate axis. The relation is detected only implicitly.
To detect a collinear relation
When the collinear relation indicator appears, a collinear relation has been detected.
note: A collinear relation can be detected if the Collinear check box in the Relations tab is selected.
Example
In the first example, the end point of a line is drawn to be collinear to another line.