Sketcher ConstrainDiameter/es

Radio de restricción

Ángulo de restricción

Croquizador

Descripción

The Sketcher ConstrainDiameter tool fixes the diameter of circles and arcs. It cannot be used for B-spline weight circles.

See also: Drawing aids.

Continue mode

1. Make sure there is no selection.
2. There are several ways to invoke the tool:
   • introduced in 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 Diameter Dimension option from the dropdown.
   • If this preference has a different value (and in 0.21 and below): press the Diameter Dimension button.
   • Select the Sketch → Constraints → Diameter Dimension option from the menu.
   • introduced in 1.0: Right-click in the 3D View and select the Dimension → Diameter Dimension option from the context menu.
   • Use the keyboard shortcut: K then O.
3. The cursor changes to a cross with the tool icon.
4. Select the edge of a circle or arc.
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.

Run-once mode

1. Select the edge of one or more circles or arcs.
2. Invoke the tool as described above, or with the following additional option:
   • Right-click in the Elements section of the Sketcher Dialog and select the Diameter Dimension option from the context menu.
3. Optionally edit the constraint value.
4. Depending on the selection one or more constraints are added, see Notes.

Notes

• If driving constraints are created and multiple elements that are not external geometry have been pre-selected, only the first of those receives a dimensional constraint, while between the first and the others equal constrains are applied.

Scripting

Sketch.addConstraint(Sketcher.Constraint('Diameter', ArcOrCircle, App.Units.Quantity('123.0 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.

Radio de restricción

Ángulo de restricción

Croquizador

Sketcher

• General: New Sketch, Edit Sketch, Attach Sketch, Reorient Sketch, Validate Sketch, Merge Sketches, Mirror Sketch, Leave Sketch, Align View to Sketch, Toggle Section View, Toggle Grid, Toggle Snap, Rendering Order, Stop Operation

---

• Geometries: Point, Polyline, Line, Arc From Center, Arc From 3 Points, Elliptical Arc, Hyperbolic Arc, Parabolic Arc, Circle From Center, Circle From 3 Points, Ellipse From Center, Ellipse From 3 Points, Rectangle, Centered Rectangle, Rounded Rectangle, Triangle, Square, Pentagon, Hexagon, Heptagon, Octagon, Polygon, Slot, Arc Slot, B-Spline, Periodic B-Spline, B-Spline From Knots, Periodic B-Spline From Knots, Toggle Construction Geometry

---

• Constraints:
  • Dimensional Constraints: Dimension, Horizontal Dimension, Vertical Dimension, Distance Dimension, Radius/Diameter Dimension, Radius Dimension, Diameter Dimension, Angle Dimension, Lock Position
  • Geometric Constraints: Coincident Constraint (Unified), Coincident Constraint, Point-On-Object Constraint, Horizontal/Vertical Constraint, Horizontal Constraint, Vertical Constraint, Parallel Constraint, Perpendicular Constraint, Tangent/Collinear Constraint, Equal Constraint, Symmetric Constraint, Block Constraint, Refraction Constraint
  • Constraint Tools: Toggle Driving/Reference Constraints, Toggle Constraints

---

• Sketcher Tools: Fillet, Chamfer, Trim Edge, Split Edge, Extend Edge, External Projection, External Intersection, Carbon Copy, Select Origin, Select Horizontal Axis, Select Vertical Axis, Move/Array Transform, Rotate/Polar Transform, Scale, Offset, Mirror, Remove Axes Alignment, Delete All Geometry, Delete All Constraints, Copy Elements, Cut Elements, Paste Elements

---

• B-Spline Tools: Geometry to B-Spline, Increase B-Spline Degree, Decrease B-Spline Degree, Increase Knot Multiplicity, Decrease Knot Multiplicity, Insert Knot, Join Curves

---

• Visual Helpers: Select Under-Constrained Elements, Select Associated Constraints, Select Associated Geometry, Select Redundant Constraints, Select Conflicting Constraints, Toggle Circular Helper for Arcs, Toggle B-Spline Degree, Toggle B-Spline Control Polygon, Toggle B-Spline Curvature Comb, Toggle B-Spline Knot Multiplicity, Toggle B-Spline Control Point Weight, Toggle Internal Geometry, Switch Virtual Space

---

• Additional: Sketcher Dialog, Preferences, Sketcher scripting

User documentation

• Getting started
• Installation: Download, Windows, Linux, Mac, Additional components, Docker, AppImage, Ubuntu Snap
• Basics: About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties, Help FreeCAD, Donate

---

• Help: Tutorials, Video tutorials
• Workbenches: Std Base, Assembly, BIM, CAM, Draft, FEM, Inspection, Material, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework

---

• Addons: Addon Manager, External workbenches, Scripting and macros

---

• Hubs: User hub, Power users hub, Developer hub