Part Cylinder/sv

Box

Sphere

Part

Description

The Part Cylinder command creates a parametric cylinder solid. It is the result of extruding a circular arc along a straight path. In the coordinate system defined by its DataPlacement property, the bottom face of the cylinder lies on the XY plane with its center at the origin.

A Part Cylinder can be turned into a segment of a cylinder by changing its DataAngle property.

Usage

1. There are several ways to invoke the command:
   • Press the Cylinder button.
   • Select the Part → Primitives → Cylinder option from the menu.
2. The cylinder is created.
3. Optionally change the dimensions and DataPlacement of the cylinder by doing one of the following:
   • Double-click the object in the Tree view:
     1. The Geometric Primitives task panel opens.
     2. Change one or more properties.
     3. The object is dynamically updated in the 3D view.
     4. Press the OK button.
   • Change the properties in the Property editor.
   • Change the DataPlacement with the Std TransformManip command.

Example

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

Notes

• A Part Cylinder can also be created with the Part Primitives command. With that command you can specify the dimensions and placement at creation time.

Properties

See also: Property editor.

A Part Cylinder 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.

Cylinder

• DataRadius (Length): The radius of the circular arc that defines the cylinder. The default is 2mm.
• DataHeight (Length): The height of the cylinder. The default is 10mm.
• DataAngle (Angle): The angle of the circular arc that defines the cylinder. Valid range: 0° < value <= 360°. The default is 360°. If it is smaller than 360° the resulting solid will be a segment of a cylinder.

Prism

• DataFirst Angle (Angle): The angle between the extrusion direction of the cylinder and its positive Z axis, measured around its Y axis. The angle is positive towards its positive X axis. Valid range: 0° <= value < 90°. The default is 0°. introduced in version 0.20
• DataSecond Angle (Angle): The angle between the extrusion direction of the cylinder and its positive Z axis, measured around its X axis. The angle is positive towards its positive Y axis. Valid range: 0° <= value < 90°. The default is 0°. introduced in version 0.20

Scripting

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

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

cylinder = FreeCAD.ActiveDocument.addObject("Part::Cylinder", "myCylinder")

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

Example:

import FreeCAD as App

doc = App.activeDocument()

cylinder = doc.addObject("Part::Cylinder", "myCylinder")
cylinder.Radius = 10
cylinder.Height = 50
cylinder.Placement = App.Placement(App.Vector(5, 10, 15), App.Rotation(75, 60, 30))

doc.recompute()

Box

Sphere

Part

Part

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