零件圆柱体

From FreeCAD Documentation
This page is a translated version of the page Part Cylinder and the translation is 3% complete.
Outdated translations are marked like this.

Part Cylinder

Menu location
Part → Primitives → Cylinder
Workbenches
Part
Default shortcut
None
Introduced in version
-
See also
Part Primitives

Description

描述

利用位置、角度、半径与高度参数创建一个简单的参数化圆柱体。

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

如何使用

零件工作台中点击此图标。默认情况下,此工具会创建一个对齐于坐标轴的半径为2mm且高度为10mm的完整圆柱体,并令其中心与全局原点(point 0,0,0)重合。

  1. There are several ways to invoke the command:
    • Press the Part Cylinder button.
    • Select the Part → Primitives → Cylinder option from the menu.
  2. The cylinder is created.
  3. Optionally change the dimensions and 数据Placement 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 数据Placement with the Std TransformManip command.

Example

Part Cylinder from the scripting 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.

选项

创建圆柱体后,用户可编辑其数据选项卡中的各属性:

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

  • 数据Radius (Length): The radius of the circular arc that defines the cylinder. The default is 2mm.
  • 数据Height (Length): The height of the cylinder. The default is 10mm.
  • 数据Angle (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

  • 数据First 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 . introduced in version 0.20
  • 数据Second 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 . 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()