Add a Parallel Constraint
- Select Sketch | Constraints | Add parallel constraint.
- Select the first line. This line keeps its position.
- Select the second line. This line moves so that it is parallel with the first line.
- Add more parallel constraints by repeating steps 2 and 3 or finish adding parallel constraints by pressing the ESC key or the middle mouse button.
The Distance constraint between two lines includes the Parallel constraint, in a sense.
If you add a line parallel to another line by pressing the E key, the Parallel constraint is created automatically.
The axes of the sketching coordinate system retain their directions, and an axis can be used as an element when determining the constraint.