Constraint PointOnPoint
|
|
| Menu location |
|---|
| Sketch → Sketcher constraints → Constrain coincident |
| Workbenches |
| Sketcher, PartDesign |
| Default shortcut |
| None |
| Introduced in version |
| - |
| See also |
| Constraint Lock, Constraint Point onto Object |
Description
Create a coincident constraint on the selected item
This constraint tool takes two points as its argument and serves to make the two points coincident. (Meaning to make them as-one-point).
In practical terms this constraint tool is useful when there is a break in a profile for example - where two lines end near each other and need to be joined - a coincident constraint on their end-points will close the gap.
Utilización
- Selecciona dos puntos.
- Selecciona la restricción 'Coincidencia' y los dos puntos pasarán a ser coincidentes.
NOTE: In order to make two points coincident, FreeCAD must necessarily move one, or both, of the original points.
Scripting
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 :
- Sketch is a sketch object
- LineFixed is the number of the line, that will not move by applying the constraint
- PointOfLineFixed is the number of the vertex of the line LineFixed that has to fulfilled the constraint
- LineMoving is the number of the line, that will move by applying the constraint
- PointOfLineMoving is the number of the line LineMoving, that has to fulfilled the constraint
The main issue by using this function is to identify correctly the line number and the vertex number of the lines you want to process.
Let us take an example to explain the method to identify correctly the line number and vertex number. Identifying the numbering of a line.
I have drawn three lines as shown in figure 1.
TO BE CONTINUED...