Draft Ellipse/zh-cn: Difference between revisions

From FreeCAD Documentation
(Updating to match new version of source page)
(Updating to match new version of source page)
 
(8 intermediate revisions by 2 users not shown)
Line 1: Line 1:
<languages/>
<languages/>

{{Docnav
{{Docnav
|[[Draft_Arc|Arc]]
|[[Draft_Circle|Circle]]
|[[Draft_Rectangle|Rectangle]]
|[[Draft_Polygon|Polygon]]
|[[Draft_Module|Draft]]
|[[Draft_Workbench|Draft]]
|IconL=Draft_Arc.svg
|IconL=Draft_Circle.svg
|IconR=Draft_Rectangle.svg
|IconC=Workbench_Draft.svg
|IconC=Workbench_Draft.svg
|IconR=Draft_Polygon.svg
}}
}}


{{GuiCommand
{{GuiCommand
|Name=Draft Ellipse
|Name=Draft Ellipse
|MenuLocation=Draft → Ellipse
|MenuLocation=Drafting → Ellipse
|Workbenches=[[Draft Module|Draft]], [[Arch Module|Arch]]
|Workbenches=[[Draft_Workbench|Draft]], [[Arch_Workbench|Arch]]
|Shortcut={{KEY|E}} {{KEY|L}}
|Shortcut={{KEY|E}} {{KEY|L}}
|SeeAlso=[[Draft Circle|Draft Circle]], [[Draft Arc|Draft Arc]]
|Version=0.7
|Version=0.7
}}
}}


<span id="Description"></span>
==描述==
==描述==


Line 29: Line 30:


[[Image:Draft_ellipse_example.jpg|400px]]
[[Image:Draft_ellipse_example.jpg|400px]]
<div class="mw-translate-fuzzy">
{{Caption|通过矩形角点所定义的椭圆}}
{{Caption|通过矩形角点所定义的椭圆}}
</div>

==Usage==

See also: [[Draft_Tray|Draft Tray]], [[Draft_Snap|Draft Snap]] and [[Draft_Constrain|Draft Constrain]].


<div class="mw-translate-fuzzy">
<div class="mw-translate-fuzzy">
==如何使用==
==如何使用==
# 按下{{Button|[[Image:Draft Ellipse.png|16px]] [[Draft Ellipse]]}}按钮,或先按{{KEY|E}}键再按{{KEY|L}}键。
# 按下{{Button|[[Image:Draft Ellipse.png|16px]] [[Draft Ellipse]]}}按钮,或先按{{KEY|E}}键再按{{KEY|L}}键。
# 在3D视图中点击第一个点,或输入一个 [[Draft_Coordinates|坐标]]并按下{{Button|[[Image:Draft_AddPoint.svg|16px]] [[Draft_AddPoint|add point]]}}按钮。
# 在3D视图中点击第一个点,或输入一个坐标并按下{{Button|[[Image:Draft_AddPoint.svg|16px]] add point}}按钮。
# 在3D视图中点击第二个点,或输入一个[[Draft_Coordinates|坐标]]并按下{{Button|[[Image:Draft_AddPoint.svg|16px]] [[Draft_AddPoint|add point]]}}按钮。
# 在3D视图中点击第二个点,或输入一个坐标并按下{{Button|[[Image:Draft_AddPoint.svg|16px]] add point}}按钮。
</div>
</div>


<span id="Options"></span>
创建椭圆之后,通过将其第一角度(first angle)与最后角度(last angle)两个属性设置为不同值,便可以将它转换为一条椭圆弧。

==选项==
==选项==


The single character keyboard shortcuts available in the task panel can be changed. See [[Draft_Preferences|Draft Preferences]]. The shortcuts mentioned here are the default shortcuts (for version 0.22).
* To enter coordinates manually, simply enter the numbers, then press {{KEY|Enter}} between each X, Y and Z component. You can press the {{Button|[[Image:Draft_AddPoint.svg|16px]] [[Draft_AddPoint|add point]]}} button when you have the desired values to insert the point.

* Press {{KEY|R}} or click the checkbox to toggle ''relative'' mode. If relative mode is on, the coordinates of the second point are relative to the first one; if not, they are absolute, taken from the origin (0,0,0).
* To manually enter coordinates enter the X, Y and Z component, and press {{KEY|Enter}} after each. Or you can press the {{Button|[[Image:Draft_AddPoint.svg|16px]] Enter point}} button when you have the desired values. It is advisable to move the pointer out of the [[3D_view|3D view]] before entering coordinates.
* Press {{KEY|T}} or click the checkbox to toggle ''continue'' mode. If continue mode is on, the Ellipse tool will restart after you finish the shape, allowing you to draw another one without pressing the tool button again.
* Press {{KEY|L}} or click the checkbox to toggle ''filled'' mode. If filled mode is on, the ellipse will create a filled face ({{PropertyData|Make Face}} {{TRUE}}); if not, the ellipse will not make a face ({{PropertyData|Make Face}} {{FALSE}}).
* Press {{KEY|R}} or click the {{MenuCommand|Relative}} checkbox to toggle relative mode. If relative mode is on, the coordinates of the second point are relative to the first point, else they are relative to the coordinate system origin.
* Press {{KEY|G}} or click the {{MenuCommand|Global}} checkbox to toggle global mode. If global mode is on, coordinates are relative to the global coordinate system, else they are relative to the [[Draft_SelectPlane|working plane]] coordinate system. {{Version|0.20}}
* Hold {{KEY|Ctrl}} while drawing to force [[Draft_Snap|snapping]] your point to the nearest snap location, independently of the distance.
* Press {{KEY|F}} or click the {{MenuCommand|Filled}} checkbox to toggle filled mode. If filled mode is on, the created ellipse will have {{PropertyData|Make Face}} set to {{TRUE}} and will have a filled face.
* Hold {{KEY|Shift}} while drawing to [[Draft_Constrain|constrain]] your second point horizontally or vertically in relation to the first one.
* Press {{KEY|Esc}} or the {{Button|Close}} button to abort the current command.
* Press {{KEY|N}} or click the {{MenuCommand|Continue}} checkbox to toggle continue mode. If continue mode is on, the command will restart after finishing, allowing you to continue creating ellipses.
* Press {{KEY|S}} to switch [[Draft_Snap|Draft snapping]] on or off.
* Press {{KEY|Esc}} or the {{Button|Close}} button to abort the command.

==Notes==

* A Draft Ellipse can be edited with the [[Draft_Edit|Draft Edit]] command.

==Preferences==

See also: [[Preferences_Editor|Preferences Editor]] and [[Draft_Preferences|Draft Preferences]].

* If the {{MenuCommand|Edit → Preferences... → Draft → General → Create Part primitives if possible}} option is checked, the command will create a [[Part_Ellipse|Part Ellipse]] instead of a Draft Ellipse.


==Properties==
==Properties==


See also: [[Property_editor|Property editor]].
An Ellipse object shares many properties with a [[Draft Circle|Draft Circle]], but some properties only make sense for the ellipse.

A Draft Ellipse object is derived from a [[Part_Part2DObject|Part Part2DObject]] and inherits all its properties. It also has the following additional properties:


===Data===
===Data===

* {{PropertyData|First Angle}}: specifies the angle of the first point of the ellipse; normally 0&#176;.
{{TitleProperty|Draft}}
* {{PropertyData|Last Angle}}: specifies the angle of the last point of the ellipse; normally 0&#176;.

* {{PropertyData|Major Radius}}: specifies the major radius of the ellipse.
* {{PropertyData|Minor Radius}}: specifies the minor radius of the ellipse.
* {{PropertyData|Area|Area}}: (read-only) specifies the area of the face of the ellipse. The value will be {{value|0.0}} if {{PropertyData|Make Face}} if {{FALSE}} or the face cannot be created.
* {{PropertyData|First Angle|Angle}}: specifies the angle of the first point of the ellipse, normally {{value|0&#176;}}.
:If the both radius have the same value, the ellipse looks the same as a [[Draft Circle|Draft Circle]].
* {{PropertyData|Last Angle|Angle}}: specifies the angle of the last point of the ellipse, normally {{value|0&#176;}}.
* {{PropertyData|Make Face}}: specifies if the Ellipse makes a face or not. If it is {{TRUE}} a face is created, otherwise only the perimeter is considered part of the object. This property only works if the shape is a full ellipse.
* {{PropertyData|Major Radius|Length}}: specifies the major radius of the ellipse.
:For it to be a full ellipse {{PropertyData|First Angle}} and {{PropertyData|Last Angle}} should have the same value; otherwise, an elliptical arc is displayed. The values 0&#176; and 360&#176; are considered the same.
* {{PropertyData|Make Face|Bool}}: specifies if the ellipse makes a face or not. If it is {{TRUE}} a face is created, otherwise only the perimeter is considered part of the object. This property only works if the shape is a full ellipse.
* {{PropertyData|Minor Radius|Length}}: specifies the minor radius of the ellipse.


===View===
===View===

* {{PropertyView|Pattern}}: specifies a [[Draft Pattern|Draft Pattern]] with which to fill the face of the shape. This property only works if {{PropertyData|Make Face}} is {{TRUE}}, and if {{PropertyView|Display Mode}} is "Flat Lines".
{{TitleProperty|Draft}}
* {{PropertyView|Pattern Size}}: specifies the size of the [[Draft Pattern|Draft Pattern]].

* {{PropertyView|Pattern|Enumeration}}: specifies the [[Draft_Pattern|Draft Pattern]] with which to fill the face of the ellipse. This property only works if {{PropertyData|Make Face}} is {{TRUE}} and if {{PropertyView|Display Mode}} is {{value|Flat Lines}}.
* {{PropertyView|Pattern Size|Float}}: specifies the size of the [[Draft_Pattern|Draft Pattern]].


==Scripting==
==Scripting==
{{Emphasis|See also:}} [[Draft API|Draft API]] and [[FreeCAD Scripting Basics|FreeCAD Scripting Basics]].


See also: [https://freecad.github.io/SourceDoc/ Autogenerated API documentation] and [[FreeCAD Scripting Basics|FreeCAD Scripting Basics]].
The Ellipse tool can by used in [[macros|macros]] and from the [[Python|Python]] console by using the following function:

To create a Draft Ellipse use the {{incode|make_ellipse}} method ({{Version|0.19}}) of the Draft module. This method replaces the deprecated {{incode|makeEllipse}} method.

{{Code|code=
{{Code|code=
Ellipse = makeEllipse(majradius, minradius, placement=None, face=True, support=None)
ellipse = make_ellipse(majradius, minradius, placement=None, face=True, support=None)
}}
}}


* Creates an {{incode|Ellipse}} object with given major ({{incode|majradius}}) and minor ({{incode|minradius}}) radius in millimeters.
* Creates an {{incode|ellipse}} object with given major ({{incode|majradius}}) and minor ({{incode|minradius}}) radius in millimeters.
** The bigger value will be used for the major radius (X axis) if no other placement is given.
** The bigger value will be used for the major radius (X axis) if no other placement is given.
* If a {{incode|placement}} is given, it is used; otherwise the shape is created at the origin.
* If {{incode|placement}} is {{incode|None}} the ellipse is created at the origin.
* If {{incode|face}} is {{incode|True}}, the ellipse will make a face, that is, it will appear filled.
* If {{incode|face}} is {{incode|True}}, the ellipse will make a face, that is, it will appear filled.


Example:
Example:

{{Code|code=
{{Code|code=
import FreeCAD, Draft
import FreeCAD as App
import Draft


doc = App.newDocument()
Ellipse1 = Draft.makeEllipse(3000, 200)
Ellipse2 = Draft.makeEllipse(700, 1000)


ellipse1 = Draft.make_ellipse(3000, 200)
ZAxis = FreeCAD.Vector(0, 0, 1)
p3 = FreeCAD.Vector(1000, 1000, 0)
ellipse2 = Draft.make_ellipse(700, 1000)
place3 = FreeCAD.Placement(p3, FreeCAD.Rotation(ZAxis, 90))


zaxis = App.Vector(0, 0, 1)
Ellipse3 = Draft.makeEllipse(700, 1000, placement=place3)
p3 = App.Vector(1000, 1000, 0)
place3 = App.Placement(p3, App.Rotation(zaxis, 90))

ellipse3 = Draft.make_ellipse(700, 1000, placement=place3)

doc.recompute()
}}
}}



{{Docnav
{{Docnav
|[[Draft_Arc|Arc]]
|[[Draft_Circle|Circle]]
|[[Draft_Rectangle|Rectangle]]
|[[Draft_Polygon|Polygon]]
|[[Draft_Module|Draft]]
|[[Draft_Workbench|Draft]]
|IconL=Draft_Arc.svg
|IconL=Draft_Circle.svg
|IconR=Draft_Rectangle.svg
|IconC=Workbench_Draft.svg
|IconC=Workbench_Draft.svg
|IconR=Draft_Polygon.svg
}}
}}


{{Draft Tools navi{{#translation:}}}}
{{Draft Tools navi{{#translation:}}}}
{{Userdocnavi{{#translation:}}}}
{{Userdocnavi{{#translation:}}}}
{{clear}}

Latest revision as of 05:00, 9 January 2024

Draft Ellipse

Menu location
Drafting → Ellipse
Workbenches
Draft, Arch
Default shortcut
E L
Introduced in version
0.7
See also
None

描述

椭圆工具会根据用户输入的两个点,在当前的工作平面内创建一个椭圆。该椭圆将恰好适配于这两个矩形角点所定义的矩形盒中。另外,此工具将根据Draft Tray中的Draft Linestyle设置来绘制椭圆。

此工具也可用于创建椭圆弧,此时还要指定弧的起始角度与结束角度。而要创建圆与圆弧则可采用底图圆形工具与底图弧形工具。另外,您还可以通过底图B样条底图贝塞尔曲线工具来创建近似的椭圆弧与圆弧。

通过矩形角点所定义的椭圆

Usage

See also: Draft Tray, Draft Snap and Draft Constrain.

如何使用

  1. 按下 Draft Ellipse按钮,或先按E键再按L键。
  2. 在3D视图中点击第一个点,或输入一个坐标并按下 add point按钮。
  3. 在3D视图中点击第二个点,或输入一个坐标并按下 add point按钮。

选项

The single character keyboard shortcuts available in the task panel can be changed. See Draft Preferences. The shortcuts mentioned here are the default shortcuts (for version 0.22).

  • To manually enter coordinates enter the X, Y and Z component, and press Enter after each. Or you can press the Enter point button when you have the desired values. It is advisable to move the pointer out of the 3D view before entering coordinates.
  • Press R or click the Relative checkbox to toggle relative mode. If relative mode is on, the coordinates of the second point are relative to the first point, else they are relative to the coordinate system origin.
  • Press G or click the Global checkbox to toggle global mode. If global mode is on, coordinates are relative to the global coordinate system, else they are relative to the working plane coordinate system. introduced in version 0.20
  • Press F or click the Filled checkbox to toggle filled mode. If filled mode is on, the created ellipse will have 数据Make Face set to true and will have a filled face.
  • Press N or click the Continue checkbox to toggle continue mode. If continue mode is on, the command will restart after finishing, allowing you to continue creating ellipses.
  • Press S to switch Draft snapping on or off.
  • Press Esc or the Close button to abort the command.

Notes

  • A Draft Ellipse can be edited with the Draft Edit command.

Preferences

See also: Preferences Editor and Draft Preferences.

  • If the Edit → Preferences... → Draft → General → Create Part primitives if possible option is checked, the command will create a Part Ellipse instead of a Draft Ellipse.

Properties

See also: Property editor.

A Draft Ellipse object is derived from a Part Part2DObject and inherits all its properties. It also has the following additional properties:

Data

Draft

  • 数据Area (Area): (read-only) specifies the area of the face of the ellipse. The value will be 0.0 if 数据Make Face if false or the face cannot be created.
  • 数据First Angle (Angle): specifies the angle of the first point of the ellipse, normally .
  • 数据Last Angle (Angle): specifies the angle of the last point of the ellipse, normally .
  • 数据Major Radius (Length): specifies the major radius of the ellipse.
  • 数据Make Face (Bool): specifies if the ellipse makes a face or not. If it is true a face is created, otherwise only the perimeter is considered part of the object. This property only works if the shape is a full ellipse.
  • 数据Minor Radius (Length): specifies the minor radius of the ellipse.

View

Draft

  • 视图Pattern (Enumeration): specifies the Draft Pattern with which to fill the face of the ellipse. This property only works if 数据Make Face is true and if 视图Display Mode is Flat Lines.
  • 视图Pattern Size (Float): specifies the size of the Draft Pattern.

Scripting

See also: Autogenerated API documentation and FreeCAD Scripting Basics.

To create a Draft Ellipse use the make_ellipse method (introduced in version 0.19) of the Draft module. This method replaces the deprecated makeEllipse method.

ellipse = make_ellipse(majradius, minradius, placement=None, face=True, support=None)
  • Creates an ellipse object with given major (majradius) and minor (minradius) radius in millimeters.
    • The bigger value will be used for the major radius (X axis) if no other placement is given.
  • If placement is None the ellipse is created at the origin.
  • If face is True, the ellipse will make a face, that is, it will appear filled.

Example:

import FreeCAD as App
import Draft

doc = App.newDocument()

ellipse1 = Draft.make_ellipse(3000, 200)
ellipse2 = Draft.make_ellipse(700, 1000)

zaxis = App.Vector(0, 0, 1)
p3 = App.Vector(1000, 1000, 0)
place3 = App.Placement(p3, App.Rotation(zaxis, 90))

ellipse3 = Draft.make_ellipse(700, 1000, placement=place3)

doc.recompute()