Radiano

From FreeCAD Documentation
This page is a translated version of the page Sketcher ConstrainRadiam and the translation is 12% complete.
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Sketcher ConstrainRadiam

Menu location
Sketch → Sketcher constraints → Constrain auto radius/diameter
Workbenches
Sketcher
Default shortcut
K S
Introduced in version
0.20
See also
Sketcher ConstrainRadius, Sketcher ConstrainDiameter

Description

The Sketcher ConstrainRadiam tool fixes the radius of arcs and B-spline weight circles, and the diameter of circles.

Usage

See also: Drawing aids.

Continue mode

  1. Make sure there is no selection.
  2. There are several ways to invoke the tool:
    • introduced in version 1.0: If the Dimensioning constraints preference is set to Single tool (default): press the down arrow to the right of the button and select the Constrain auto radius/diameter option from the dropdown.
    • If this preference has a different value (and in version 0.21 and below): press the Constrain auto radius/diameter button.
    • Select the Sketch → Sketcher constraints → Constrain auto radius/diameter option from the menu.
    • introduced in version 1.0: Right-click in the 3D view and select the Dimension → Constrain auto radius/diameter option from the context menu.
    • Use the keyboard shortcut: K then S.
  3. The cursor changes to a cross with the tool icon.
  4. Do one of the following:
    • Select the edge of a circle or arc.
    • Select the edge of a B-spline weight circle.
  5. If a driving dimensional constraint is created, depending on the preferences, a dialog opens to edit its value.
  6. A constraint is added.
  7. Optionally keep creating constraints.
  8. To finish, right-click or press Esc, or start another geometry or constraint creation tool.

Modo de execução única

  1. Do one of the following:
    • Select the edge of one or more circles or arcs.
    • Select the edge of one or more B-spline weight circles.
  2. Invoke the tool as explained above.
  3. Optionally edit the constraint value.
  4. Depending on the selection one or more constraints are added, see Notes.

Notes

Scripting

Sketch.addConstraint(Sketcher.Constraint('Radius', ArcOrCircle, App.Units.Quantity('123.0 mm')))
Sketch.addConstraint(Sketcher.Constraint('Diameter', ArcOrCircle, App.Units.Quantity('246.0 mm')))

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