Part Torus: Difference between revisions
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The [[Image:Part_Torus.svg|24px]] '''Part Torus''' command creates a parametric torus solid, a doughnut shape. It is the result of sweeping a circular profile around a circular path. In the coordinate system defined by its {{PropertyData|Placement}} property, the circular path of the torus lies on the XY plane with its center at the origin. |
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Creates a simple parametric torus, with position, angle1, angle2, angle3, radius1 and radius2 as parameters. |
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A Part Torus can be turned into a segment of a torus by changing its {{PropertyData|Angle3}} property. By changing its {{PropertyData|Angle1}} and/or {{PropertyData|Angle2}} properties the swept profile can become a segment of a circle. |
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[[Image:Part_Torus_Example.png|400px]] |
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# There are several ways to invoke the command: |
# There are several ways to invoke the command: |
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#* Press the {{Button|[[Image:Part_Torus.svg|16px]] [[Part |
#* Press the {{Button|[[Image:Part_Torus.svg|16px]] [[Part_Torus|Part Torus]]}} button. |
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#* Select the {{MenuCommand|Part → Primitives → [[Image:Part_Torus.svg|16px]] Torus}} option from the menu. |
#* Select the {{MenuCommand|Part → Primitives → [[Image:Part_Torus.svg|16px]] Torus}} option from the menu. |
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# The torus is created. |
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# Optionally change the dimensions and {{PropertyData|Placement}} of the torus by doing one of the following: |
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#* Double-click the object in the [[Tree_view|Tree view]]: |
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#*# The {{MenuCommand|Geometric Primitives}} task panel opens. |
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#*# Change one or more properties. |
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#*# The object is dynamically updated in the [[3D_view|3D view]]. |
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#*# Press the {{Button|OK}} button. |
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#* Change the properties in the [[Property_editor|Property editor]]. |
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#* Change the {{PropertyData|Placement}} with the [[Image:Std_TransformManip.svg|16px]] [[Std_TransformManip|Std TransformManip]] command. |
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== Example == |
== Example == <!--T:27--> |
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[[ |
[[Image:Part_Torus_Scripting_Example.png|thumb|Part Torus from the scripting example]] |
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A Part Torus object with the |
A Part Torus object created with the [[#Scripting|scripting example]] below is shown here. |
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== |
== Notes == <!--T:30--> |
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* A Part Torus can also be created with the [[Image:Part_Primitives.svg|16px]] [[Part_Primitives|Part Primitives]] command. With that command you can specify the dimensions and placement at creation time. |
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[[File:TorusExampleOverviewParameters.jpg]] |
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== Properties == <!--T:11--> |
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'''Parameter''' |
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See also: [[Property_editor|Property editor]]. |
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A torus can be assimilated to a small disc that makes a circular orbit around an imaginary axe. Thus the parametric torus is defined by the following parameters: |
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A Part Torus object is derived from a [[Part_Feature|Part Feature]] object and inherits all its properties. It also has the following additional properties: |
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=== Data === <!--T:34--> |
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* {{PropertyData|Angle1|Angle}}: 1st angle to cut / define the disc of the torus |
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* {{PropertyData|Angle2|Angle}}: 2nd angle to cut / define the disc of the torus |
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* {{PropertyData|Angle3|Angle}}: 3rd angle to define the circumference of the torus. |
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{{TitleProperty|Attachment}} |
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As well as the standard set of placement parameters. The pictures below give a visual overview of the parameters antecedently mentioned: |
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The object has the same attachment properties as a [[Part_Part2DObject#Data|Part Part2DObject]]. |
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[[File:TorusExampleRadius1.jpg]] |
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The parameter Radius1 has a value of 20 mm. |
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[[File:TorusExampleRadius2.jpg]] |
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The parameter Radius2 has a value of 2 mm. |
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[[File:TorusExampleAngle1.jpg]] |
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The parameter Angle1 has a value of -90°. Notice that, the 'angle measure' tool cannot display negative angle. Considered the displayed value in picture as '-90°'. |
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* {{PropertyData|Angle1|Angle}}: The start angle of the circular profile. Valid range: {{Value|-180° <= value <= 180°}}. The default is {{Value|-180°}}. |
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* {{PropertyData|Angle2|Angle}}: The end angle the circular profile. Valid range: {{Value|-180° <= value <= 180°}}. The default is {{Value|180°}}. If the total angle of the circular profile is smaller than {{Value|360°}} the profile will have a pie-shape. |
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* {{PropertyData|Angle3|Angle}}: The angle of the circular path of the torus. Valid range: {{Value|0° < value <= 360°}}. The default is {{Value|360°}}. If it is smaller than {{Value|360°}} the resulting solid will be a segment of a torus. |
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== Scripting == <!--T:23--> |
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[[File:TorusExampleAngle2.jpg]] |
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The parameter Angle2 has a value of 90°. |
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See also: [https://freecad.github.io/SourceDoc/ Autogenerated API documentation], [[Part_scripting|Part scripting]] and [[FreeCAD_Scripting_Basics|FreeCAD Scripting Basics]]. |
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[[File:TorusExampleAngle3.jpg]] |
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The parameter Angle3 has a value of 90°. |
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{{clear}} |
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== Scripting == <!--T:23--> |
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A Part Torus can be created |
A Part Torus can be created with the {{Incode|addObject()}} method of the document: |
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* Where {{Incode|myTorus}} is the |
* Where {{Incode|"myTorus"}} is the name for the object. |
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* The function returns the newly created object. |
* The function returns the newly created object. |
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The label text of the object can be easily changed by |
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Example: |
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{{Code|code= |
{{Code|code= |
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import FreeCAD as App |
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doc = App.activeDocument() |
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You can access and modify attributes of the {{Incode|torus}} object. For example, you may wish to modify the radii or angle parameters. |
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torus = doc.addObject("Part::Torus", "myTorus") |
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{{Code|code= |
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torus.Radius1 = 20 |
torus.Radius1 = 20 |
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torus.Radius2 = 10 |
torus.Radius2 = 10 |
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torus.Angle2 = 45 |
torus.Angle2 = 45 |
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torus.Angle3 = 270 |
torus.Angle3 = 270 |
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doc.recompute() |
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}} |
}} |
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The result will be a three-quarter torus. |
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You can change its placement and orientation with: |
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</translate> |
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{{Code|code= |
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}} |
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{{ |
{{Part_Tools_navi{{#translation:}}}} |
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{{Userdocnavi{{#translation:}}}} |
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Latest revision as of 08:56, 4 March 2022
Part Torus |
Menu location |
---|
Part → Primitives → Torus |
Workbenches |
Part |
Default shortcut |
None |
Introduced in version |
- |
See also |
Part Primitives |
Description
The Part Torus command creates a parametric torus solid, a doughnut shape. It is the result of sweeping a circular profile around a circular path. In the coordinate system defined by its DataPlacement property, the circular path of the torus lies on the XY plane with its center at the origin.
A Part Torus can be turned into a segment of a torus by changing its DataAngle3 property. By changing its DataAngle1 and/or DataAngle2 properties the swept profile can become a segment of a circle.
Usage
- There are several ways to invoke the command:
- Press the Part Torus button.
- Select the Part → Primitives → Torus option from the menu.
- The torus is created.
- Optionally change the dimensions and DataPlacement of the torus by doing one of the following:
- Double-click the object in the Tree view:
- The Geometric Primitives task panel opens.
- Change one or more properties.
- The object is dynamically updated in the 3D view.
- Press the OK button.
- Change the properties in the Property editor.
- Change the DataPlacement with the Std TransformManip command.
- Double-click the object in the Tree view:
Example
A Part Torus object created with the scripting example below is shown here.
Notes
- A Part Torus 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 Torus 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.
Torus
- DataRadius1 (
Length
): The radius of the circular path of the torus. The default is10mm
. - DataRadius2 (
Length
): The radius of the circular profile of the torus. The default is2mm
. - DataAngle1 (
Angle
): The start angle of the circular profile. Valid range:-180° <= value <= 180°
. The default is-180°
. - DataAngle2 (
Angle
): The end angle the circular profile. Valid range:-180° <= value <= 180°
. The default is180°
. If the total angle of the circular profile is smaller than360°
the profile will have a pie-shape. - DataAngle3 (
Angle
): The angle of the circular path of the torus. Valid range:0° < value <= 360°
. The default is360°
. If it is smaller than360°
the resulting solid will be a segment of a torus.
Scripting
See also: Autogenerated API documentation, Part scripting and FreeCAD Scripting Basics.
A Part Torus can be created with the addObject()
method of the document:
torus = FreeCAD.ActiveDocument.addObject("Part::Torus", "myTorus")
- Where
"myTorus"
is the name for the object. - The function returns the newly created object.
Example:
import FreeCAD as App
doc = App.activeDocument()
torus = doc.addObject("Part::Torus", "myTorus")
torus.Radius1 = 20
torus.Radius2 = 10
torus.Angle1 = -90
torus.Angle2 = 45
torus.Angle3 = 270
torus.Placement = App.Placement(App.Vector(1, 2, 3), App.Rotation(30, 45, 10))
doc.recompute()
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