Sketcher ConstrainHorizontal

From FreeCAD Documentation
This page contains changes which are not marked for translation.
This documentation is a work in progress. Please don't mark it as translatable since it will change in the next hours and days.

Sketcher ConstrainHorizontal

Menu location
Sketch → Sketcher constraints → Constrain horizontally
Default shortcut
Introduced in version
See also
Sketcher ConstrainHorVer, Sketcher ConstraintVertical


The Sketcher ConstrainHorizontal tool constrains lines or pairs of points to be horizontal (parallel to the horizontal axis of the sketch).

introduced in version 0.22: In most cases it is advisable to use the combined Sketcher ConstrainHorVer tool instead.


See also: Drawing aids.

  1. Do one of the following (optional if the tool will run in continue mode):
    • Select two or more points.
    • Select two or more lines. Points can be included in the selection, but will be ignored.
  2. There are several ways to invoke the tool:
    • introduced in version 0.22: If the Auto tool for Horizontal/Vertical option is selected (default) in the Sketcher Preferences: Press the down arrow to the right of the button and select the Constrain horizontally option.
    • If this preference is not selected (and in version 0.21 and below): Press the Constrain horizontally button.
    • Select the Sketch → Sketcher constraints → Constrain horizontally option from the menu.
    • Use the keyboard shortcut: H.
  3. If the tool runs in continue mode:
    1. The cursor changes to a white cross with the tool icon.
    2. Optionally keep selecting elements. You can only select a single line or two points at a time now.
    3. To finish, right-click or press Esc, or start a another constraints or geometries tool.


Sketch.addConstraint(Sketcher.Constraint('Horizontal', Line))

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