Sketcher ConstrainParallel

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Sketcher ConstrainParallel.svg Sketcher ConstrainParallel

Menu location
Sketch → Sketcher constraints → Constrain parallel
Default shortcut
Introduced in version
See also
Sketcher Constraint Vertical, Sketcher Constraint Horizontal


The Constrain Parallel constraint forces two selected straight lines or edges to be parallel to each other.


The sketch contains two randomly oriented lines.


Select both lines by clicking successively on each of them.


Apply the Constrain Parallel constraint by either:

  • Pressing the Sketcher ConstrainParallel.svg Constrain parallel button from the Sketcher constraints toolbar.
  • Use the P keyboard shortcut.
  • Use the Sketch → Sketcher constraints → Sketcher ConstrainParallel.svg Constrain parallel entry from the top menu.


Result: The selected lines are forced to be parallel to each other. Changing the orientation of one line will change the orientation of the other to be the same.


Sketch.addConstraint(Sketcher.Constraint('Parallel', Line1, Line2))

The Sketcher scripting page explains the values which can be used for Line1 and Line2 and contains further examples on how to create constraints from Python scripts.