Sketcher Constrângerea de coincidența punctelor

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Sketcher ConstrainCoincident

poziția meniului
Sketch → Sketcher constraints → Constrain coincident
Prezentat în versiune
A se vedea, de asemenea,
Constrain Lock, Constrain Point onto Object


The Sketcher ConstrainCoincident tool creates a coincident constraint between points, or (introduced in version 0.21) a concentric constraint between circles, arcs and/or ellipses (by making their centers coincident).

introduced in version 1.0: This tool is replaced by the Sketcher ConstrainCoincidentUnified tool if the Unify Coincident and PointOnObject option is selected in the preferences.


See also: Drawing aids.

Continue mode

  1. Make sure there is no selection.
  2. There are several ways to invoke the tool:
    • Press the Constrain coincident button.
    • Select the Sketch → Sketcher constraints → Constrain coincident option from the menu.
    • Use the keyboard shortcut: C.
  3. The cursor changes to a cross with the tool icon.
  4. Do one of the following:
    • Select two points.
    • Select two edges of circles, arcs, ellipses or arcs of ellipses.
  5. A constraint is added.
  6. Optionally keep creating constraints.
  7. To finish, right-click or press Esc, or start another geometry or constraint creation tool.

Run-once mode

  1. Do one of the following:
    • Select two or more points.
    • Select two or more edges of circles, arcs, ellipses or arcs of ellipses.
  2. Invoke the tool as explained above.
  3. Depending on the selection one or more constraints are added.


General scripting

Constrângerea poate fi creată din macrocomenzi și din consola Python folosind următoarea comandă:

The constraint can be created from macros and from the Python console by using the following command:


unde :

  • Sketch este un obiect sketch
  • LineFixed este numărul liniei care nu se mișcă prin aplicarea constrângerii
  • PointOfLineFixed este numărul liniei liniei Fixed care trebuie să îndeplinească constrângerea
  • LineMoving este numărul liniei care se va deplasa prin aplicarea constrângerii
  • PointOfLineMoving este numărul liniei este LineMoving, care trebuie să îndeplinească constrângerea

As the names LineFixed and LineMoving indicate, if both constrained vertices are free to move in any direction, the first one (first to be selected in the Gui) will remain fixed and the other one will move. In the presence of existing constraints, however, both edges may move.

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