Parte: Cerchio

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Cerchio

Parte → Crea primitive → Cerchio
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Descrizione

Questo comando crea un bordo curvo circolare. Con i valori di default, il bordo curvo circolare è chiuso e quindi è un cerchio. Se vengono modificate i valori predefiniti (0 e 360​​) delle proprietà Angolo 0 o Angolo 1, il bordo è una curva aperta, un arco.

A Part Circle is in fact a closed counterclockwise circular arc, it can be turned into an arc by changing its DatiAngle1 and/or DatiAngle2 properties.

Utilizzo

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 DatiRadius and DatiPlacement of the circle.

Example

Part Circle from the scripting example

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

Proprietà

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

• Raggio: il raggio del bordo curvo (arco o cerchio)
• Angolo 1: inizio del bordo curvo, (gradi in senso antiorario), il valore di default è 0
• Angolo 2: fine del bordo curvo (gradi in senso antiorario), il valore di default è 360

Scripting

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()