Translations:Sketcher ConstrainCoincident/3/en

As stated above, this tool takes two arguments - both are points.

1. First, it is necessary to highlight two distinct points. (Note: this will not work if, for example, you attempt to select the start and end point of the same straight line; selecting the start and end points of an arc will produce a closed circle or ellipse but will constrain the location of the seam to be on that point).
2. Highlighting of a drawing item is achieved by moving the mouse over the item and clicking the left-mouse-button.
3. It is also possible to highlight all items inside a rectangle by clicking and dragging. When dragging from left to right (with any vertical motion), only the shapes which are entirely contained within the rectangle will be highlighted; in the other direction all shapes which intersect with the selection rectangle will be highlighted. This can be used to select only the vertices without selecting the edges, by dragging a small recangle around some vertices from left to right, as long as there are no edges which are fully contained within the rectangle.
4. A highlighted item will change its color to green. (This color can be customized in Editing → Preference → Display → Colors → Selection)
5. Subsequent items can be highlighted by repeating the above procedure(s). Note: it's unnecessary to hold-down any special key like Ctrl to achieve multiple item selection in a drawing.
6. Once you have two points highlighted, you can invoke the command using several methods:
   • Pressing on the Coinstrain coincident constraint button in the toolbar.
   • Using the C keyboard shortcut.
   • Using the Sketch → Sketcher constraints → Constrain coincident entry in the top menu.

Result: the command will cause the two points to become coincident and be replaced by a single point.