Sketcher ConstrainDistance

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Sketcher ConstrainDistance.svg Sketcher ConstrainDistance

Menu location
Sketch → Sketcher constraints → Constrain distance
Default shortcut
Shift + D
Introduced in version
See also
Constrain horizontal distance, Constrain vertical distance


Constrain distance constrains the length of a line, the perpendicular distance between a point and a line or the distance between two points to have a specified value.

Sketcher ConstrainDistance example.png

How to use

  1. Pick two points or one line or one point and one line.
  2. Press the Sketcher ConstrainDistance.png Constrain distance button.
  3. A pop up dialog opens to edit or confirm the value. Press OK to validate.

Note: the constraint tool can also be started with no prior selection. To set the perpendicular distance between a point and a line, the point needs to be selected first. By default the command will be in continue mode to create new constraints; press the right mouse button or ESC once to quit the command.


If applicable please consider using the Horizontal distance or Vertical distance constraints instead. These constraints are more robust and faster to calculate than the here documented length constraint.