Sketcher ConstrainCoincident
|
|
| Menu location |
|---|
| Sketch → Constraints → Coincident Constraint |
| Workbenches |
| Sketcher |
| Default shortcut |
| C |
| Introduced in version |
| - |
| See also |
| Sketcher ConstrainCoincidentUnified, Sketcher ConstrainPointOnObject |
Description[edit | edit source]
The Sketcher ConstrainCoincident tool creates a coincident constraint between points, or (introduced in 0.21) a concentric constraint between circles, arcs and/or ellipses (by making their centers coincident).
introduced in 1.0: This tool is replaced by the Sketcher ConstrainCoincidentUnified tool if the Unify coincident and point-on-object constraints option is selected in the preferences.
Usage[edit | edit source]
See also: Drawing aids.
Continue mode[edit | edit source]
- Make sure there is no selection.
- There are several ways to invoke the tool:
- Press the
Coincident Constraint button.
- Select the Sketch → Constraints →
Coincident Constraint option from the menu.
- Use the keyboard shortcut: C.
- Press the
- The cursor changes to a cross with the tool icon.
- Do one of the following:
- Select two points.
- Select two edges of circles, arcs, ellipses or arcs of ellipses.
- A constraint is added.
- Optionally keep creating constraints.
- To finish, right-click or press Esc, or start another geometry or constraint creation tool.
Run-once mode[edit | edit source]
- Do one of the following:
- Select two or more points.
- Select two or more edges of circles, arcs, ellipses or arcs of ellipses.
- Invoke the tool as described above, or with the following additional option:
- Right-click in the Elements section of the Sketcher Dialog and select the
Coincident Constraint option from the context menu.
- Right-click in the Elements section of the Sketcher Dialog and select the
- Depending on the selection one or more constraints are added.
Notes[edit | edit source]
- introduced in 1.0: Points with coincident constraints are marked with the Constraint symbols color.
Scripting[edit | edit source]
The constraint can be created from macros and from the Python console by using the following command:
Sketch.addConstraint(Sketcher.Constraint('Coincident',LineFixed,PointOfLineFixed,LineMoving,PointOfLineMoving))
where :
Sketchis a sketch objectLineFixedis the number of the line, that will not move by applying the constraintPointOfLineFixedindicates which vertex ofLineFixedhas to fulfill the constraintLineMovingis the number of the line, that will move by applying the constraintPointOfLineMovingindicates which vertex ofLineMovinghas to fulfill the constraint
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.
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