|
Menu location |
---|
Sketch → Sketcher constraints → Toggle driving/reference constraint |
Workbenches |
Sketcher |
Default shortcut |
K X |
Introduced in version |
0.16 |
See also |
Sketcher ToggleActiveConstraint |
The Sketcher ToggleDrivingConstraint tool either toggles the dimensional constraint creation tools between driving and reference mode, or toggles selected dimensional constraints between those modes.
Contrary to driving constraints, reference constraints do not constrain the sketch, their value depends on other constraints, they are driven. They can be useful to verify measurements. They can be used in expressions, but not in the sketch itself.
A driving horizontal distance constraint (50 mm), a driving vertical distance constraint (30 mm) and a driving angle constraint (75°) were set to define the profile; a reference dimension was added on the slanted line segment to know its length (31.0583 mm).