Part Ellipsoid/it: Difference between revisions
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A Part Ellipsoid can be truncated at the top and/or bottom by changing its {{PropertyData|Angle1}} and/or {{PropertyData|Angle2}} properties. It can be turned into a segment of an ellipsoid by changing its {{PropertyData|Angle3}} property. |
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In FreeCAD la forma prodotta è limitata ad essere un solido sferoide (opzionalmente troncato), per crearlo è necessario ruotare un'ellisse attorno ad uno dei sui assi. Per impostazione predefinita, si tratta di uno [http://it.wikipedia.org/wiki/Sferoide sferoide oblato], [http://en.wikipedia.org/wiki/Oblate_spheroid oblate spheroid], cioè la forma che si creerebbe ruotando un'ellisse attorno al suo asse minore, ma i parametri possono essere modificati per formare uno sferoide prolato, [http://en.wikipedia.org/wiki/Prolate_spheroid prolate spheroid]. |
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[[Image:Part_Ellipsoid_Example.png|400px]] |
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In FreeCAD ogni sezione trasversale parallela al piano xy lo sferoide predefinito è un cerchio . La sezione trasversale parallela agli altri due piani è un'ellisse. |
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In geometria, un [http://it.wikipedia.org/wiki/Ellissoide ellissoide], [http://en.wikipedia.org/wiki/Ellipsoid Ellissoide] avrebbe una sezione ellittica in tutti e tre i piani. |
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==Utilizzo== |
==Utilizzo== |
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See [[Part_Primitives#Usage|Part Primitives]]. |
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== Example == |
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[[Image:Part_Ellipsoid_Scripting_Example.png|thumb|Part Ellipsoid from the scripting example]] |
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A Part Ellipsoid object created with the [[#Scripting|scripting example]] below is shown here. |
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La primitiva geometrica Ellissoide è disponibile dalla finestra di dialogo Crea primitive di Parte. |
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# Attivare l'ambiente [[Image:Workbench_Part.svg|24px]] [[Part Workbench/it|Parte]] |
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# Ci sono diversi modi per accedere alla finestra di dialogo Crea ellisoide: |
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#* Premere il pulsante [[Image:Part_CreatePrimitives.svg|24px]] [[Part_CreatePrimitives/it|Crea primitive]] nella barra degli strumenti di Part |
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#* Usare {{MenuCommand|Part → [[Part_CreatePrimitives/it|Crea primitive]] → Ellissoide}} |
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See also: [[Property_editor|Property editor]]. |
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A Part Ellipsoid 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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* Radius 1: Di default il raggio minore parallelo all'asse Z, |
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* Radius 2: Per default il raggio maggiore parallelo al piano XY, è anche il raggio massimo della sezione circolare trasversale |
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* Angle 1: Troncamento inferiore dell'ellissoide, parallelo alla sezione circolare (-90 gradi in uno sferoide completo) |
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* Angle 2: Troncamento superiore dell'ellissoide, parallelo alla sezione circolare (90 gradi in uno sferoide completo) |
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* Angle 3: angolo di rotazione della sezione trasversale ellittica (360 gradi in uno sferoide completo) |
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=== Data === |
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{{TitleProperty|Attachment}} |
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[[Image:Part_Ellipsoid_screenshot.jpg]] |
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The object has the same attachment properties as a [[Part_Part2DObject#Data|Part Part2DObject]]. |
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{{TitleProperty|Ellipsoid}} |
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* {{PropertyData|Radius1|Length}}: The radius of the ellipsoid in its Z direction. The default is {{Value|2mm}}. |
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* {{PropertyData|Radius2|Length}}: The radius of the ellipsoid in its X direction. The default is {{Value|4mm}}. |
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* {{PropertyData|Radius3|Length}}: The radius of the ellipsoid in its Y direction. The default is {{Value|4mm}}. |
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* {{PropertyData|Angle1|Angle}}: The start angle of the elliptical sides of the ellipsoid. Valid range: {{Value|-90° <= value < 90°}}. Must be smaller than {{PropertyData|Angle2}}. The default is {{Value|-90°}}. |
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* {{PropertyData|Angle2|Angle}}: The end angle of the elliptical sides of the ellipsoid. Valid range: {{Value|-90° < value <= 90°}}. Must be larger than {{PropertyData|Angle1}}. The default is {{Value|90°}}. If the total angle of the elliptical sides is smaller than {{Value|180°}} the ellipsoid will be truncated and have a flat face at the top and/or bottom. |
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* {{PropertyData|Angle3|Angle}}: The total angle of the ellipsoid in its XY plane. 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 an ellipsoid. |
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== Scripting == |
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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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A Part Ellipsoid can be created with the {{Incode|addObject()}} method of the document: |
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{{Code|code= |
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ellipsoid = FreeCAD.ActiveDocument.addObject("Part::Ellipsoid", "myEllipsoid") |
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}} |
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* Where {{Incode|"myEllipsoid"}} is the name for the object. |
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* The function returns the newly created object. |
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Example: |
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{{Code|code= |
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import FreeCAD as App |
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doc = App.activeDocument() |
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ellipsoid = doc.addObject("Part::Ellipsoid", "myEllipsoid") |
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ellipsoid.Radius1 = 2 |
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ellipsoid.Radius2 = 4 |
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ellipsoid.Radius3 = 6 |
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ellipsoid.Angle1 = -90 |
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ellipsoid.Angle2 = 50 |
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ellipsoid.Angle3 = 300 |
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ellipsoid.Placement = App.Placement(App.Vector(1, 2, 3), App.Rotation(15, 0, 20)) |
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doc.recompute() |
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Revision as of 10:07, 3 March 2022
Ellissoide |
Posizione nel menu |
---|
Parte → Crea primitive → Ellissoide |
Ambiente |
Parte, OpenSCAD |
Avvio veloce |
Nessuno |
Introdotto nella versione |
- |
Vedere anche |
Crea Primitive |
Descrizione
Il comando Ellissoide command crea un ellissoide solido parametrico.
A Part Ellipsoid can be truncated at the top and/or bottom by changing its DatiAngle1 and/or DatiAngle2 properties. It can be turned into a segment of an ellipsoid by changing its DatiAngle3 property.
Utilizzo
See Part Primitives.
Example
A Part Ellipsoid object created with the scripting example below is shown here.
Proprietà
See also: Property editor.
A Part Ellipsoid 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.
Ellipsoid
- DatiRadius1 (
Length
): The radius of the ellipsoid in its Z direction. The default is2mm
. - DatiRadius2 (
Length
): The radius of the ellipsoid in its X direction. The default is4mm
. - DatiRadius3 (
Length
): The radius of the ellipsoid in its Y direction. The default is4mm
. - DatiAngle1 (
Angle
): The start angle of the elliptical sides of the ellipsoid. Valid range:-90° <= value < 90°
. Must be smaller than DatiAngle2. The default is-90°
. - DatiAngle2 (
Angle
): The end angle of the elliptical sides of the ellipsoid. Valid range:-90° < value <= 90°
. Must be larger than DatiAngle1. The default is90°
. If the total angle of the elliptical sides is smaller than180°
the ellipsoid will be truncated and have a flat face at the top and/or bottom. - DatiAngle3 (
Angle
): The total angle of the ellipsoid in its XY plane. Valid range:0° < value <= 360°
. The default is360°
. If it is smaller than360°
the resulting solid will be a segment of an ellipsoid.
Scripting
See also: Autogenerated API documentation, Part scripting and FreeCAD Scripting Basics.
A Part Ellipsoid can be created with the addObject()
method of the document:
ellipsoid = FreeCAD.ActiveDocument.addObject("Part::Ellipsoid", "myEllipsoid")
- Where
"myEllipsoid"
is the name for the object. - The function returns the newly created object.
Example:
import FreeCAD as App
doc = App.activeDocument()
ellipsoid = doc.addObject("Part::Ellipsoid", "myEllipsoid")
ellipsoid.Radius1 = 2
ellipsoid.Radius2 = 4
ellipsoid.Radius3 = 6
ellipsoid.Angle1 = -90
ellipsoid.Angle2 = 50
ellipsoid.Angle3 = 300
ellipsoid.Placement = App.Placement(App.Vector(1, 2, 3), App.Rotation(15, 0, 20))
doc.recompute()
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