Sketcher ConstrainEqual

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Revision as of 22:23, 24 February 2024 by FBXL5 (talk | contribs) (several ways added)

Sketcher ConstrainEqual

Menu location
Sketch → Sketcher constraints → Constrain equal
Workbenches
Sketcher
Default shortcut
E
Introduced in version
-
See also
Sketcher Constrain radius

Description

The Constrain Equal constraint forces two or more line segments in a line, poly-line or rectangle to have equal length. If applied to arcs or circles the radii are constrained to be equal. It cannot be applied to geometry primitives which are not of the same type (e.g. line segments and arcs).

Operation

The example sketch below contains a number of sketch primitives (line, poly-line, rectangle, arc and circle).

Select two or more line segments (e.g. line and one side of the rectangle).

There are several ways to invoke the command:

  • Press the Constrain equal button.
  • Select the Sketch → Sketcher constraints → Constrain equal option from the menu.
  • introduced in version 0.22: Right-click in the 3D view and select the Constrain equal option from the context menu.
  • Use the keyboard shortcut: E.

Now select the arc and the circle in the sketch.

and apply Constrain equal as before.

Now select the line segment, all segments of the poly-line and one of the remaining unconstrained sides of the rectangle

and apply Constrain equal as before.

Select the line segment and the arc

and apply Constrain equal as before. A pop-up message indicates that the constrained items have to be of the same geometrical type (lines of zero curvature or lines of non-zero curvature).

Scripting

Sketch.addConstraint(Sketcher.Constraint('Equal', Edge1, Edge2))

The Sketcher scripting page explains the values which can be used for Edge1 and Edge2 and contains further examples on how to create constraints from Python scripts.