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A Part Circle is in fact a closed counterclockwise circular arc, it can be turned into an arc by changing its DateAngle1 and/or DateAngle2 properties.

Usage

See Part Primitives.

A Part Circle can alternatively be created by selecting three points:

1. In the task panel of the Part Primitives command select the Circle option from the dropdown list.
2. Press the From three points button.
3. Select three vertices in the 3D View. There is no need to hold down the Ctrl key.
4. A circle is created.
5. The selected vertices are only used at creation time to calculate the DateRadius and DatePlacement of the circle.

Example

A Part Circle object created with the scripting example below is shown here.

Proprietăți

Crearea unui cerc sau a unui arc de cerc parametric.

Utilizăm meniul Crea primitive... → Cerchio. Și apare o fereastră de dialog. Se deschide un dialog care vă permite să setați:

Primitive Geometrice

Cercul Parametri Raza Unghiul 1 Unghiul 2 Cerc definit din trei puncte

See also: Property View.

A Part Circle object is derived from a Part Feature object and inherits all its properties. It also has the following additional properties:

Data

Attachment

The object has the same attachment properties as a Part Part2DObject.

Base

Scripting

See also: Autogenerated API documentation, Part scripting and FreeCAD Scripting Basics.

A Part Circle can be created with the addObject() method of the document:

circle = FreeCAD.ActiveDocument.addObject("Part::Circle", "myCircle")

• Where "myCircle" is the name for the object.
• The function returns the newly created object.

Example:

import FreeCAD as App

doc = App.activeDocument()

circle = doc.addObject("Part::Circle", "myCircle")
circle.Radius = 10
circle.Angle1 = 45
circle.Angle2 = 225
circle.Placement = App.Placement(App.Vector(1, 2, 3), App.Rotation(30, 45, 10))

doc.recompute()

Spiral

Ellipse

Part