PartDesign Scaled/it: Difference between revisions
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{{GuiCommand/it|Name=PartDesign Scaled|Name/it=Scala|Workbenches=[[PartDesign Workbench/it|PartDesign]], Completo|MenuLocation=PartDesign → Multitrasformazione}} |
{{GuiCommand/it|Name=PartDesign Scaled|Name/it=Scala|Workbenches=[[PartDesign Workbench/it|PartDesign]], Completo|MenuLocation=PartDesign → Multitrasformazione}} |
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==Note== |
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== Descrizione == |
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Since FreeCAD 0.15, this feature is not available directly, but is included as [[PartDesign_MultiTransform|MultiTransform]] component |
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Lo strumento '''Scala''' prende come input un insieme di una o più operazioni selezionate ('gli originali') e li scala per un determinato fattore. Poiché la scalatura avviene attorno al centro di gravità delle operazioni selezionate, di solito gli originali scompaiono all'interno delle versioni in scala. Pertanto, in genere è utile solo per effettuare il ridimensionamento come parte di una operazione di |
Lo strumento '''Scala''' prende come input un insieme di una o più operazioni selezionate ('gli originali') e li scala per un determinato fattore. Poiché la scalatura avviene attorno al centro di gravità delle operazioni selezionate, di solito gli originali scompaiono all'interno delle versioni in scala. Pertanto, in genere è utile solo per effettuare il ridimensionamento come parte di una operazione di Multi-trasformazione. |
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[[Image:PartDesign_Scaled-01.png|300px]] [[Image:Button_right.svg|16px|link=]] [[Image:PartDesign_Scaled-02.png|300px]] |
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{{Caption|A linear pattern and a polar pattern → Scaled the linear pattern with 3 steps (occurrences) and the polar pattern with 12 steps}} |
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If there is no previous transformation within the [[Image:PartDesign_MultiTransform.svg|16px]] [[PartDesign_MultiTransform|MultiTransform]] feature, scaled items will be placed at the same position as the base feature. This may result in unexpected shapes if the base feature isn't covered completely by the scaled object. And thus it is not recommended to use '''Scaled''' as the first transformation of a MultiTransform feature. |
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[[Image:PartDesign_Scaled-03.png|200px]] [[Image:Button_right.svg|16px|link=]] |
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[[Image:PartDesign_Scaled-04.png|200px]] [[Image:Button_right.svg|16px|link=]] |
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[[Image:PartDesign_Scaled-05.png|200px]] |
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{{Caption|A base feature with a hole → Scaled object with 2 occurrences → Scaled object with 4 occurrences}} |
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A partire da FreeCAD 0.15, questa funzione non è disponibile direttamente, ma è inclusa come componente dello strumento [[PartDesign_MultiTransform/it|Multitrasformazione]]. |
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===Scaling a transformed feature=== |
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# Do one of the following: |
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#* Double-click the MultiTransform object in the [[Tree_view|Tree view]]. |
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#* Right-click the MultiTransform object in the [[Tree_view|Tree view]] and select {{MenuCommand|Edit MultiTransform}} from the context menu. |
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# The {{MenuCommand|MultiTransform parameters}} [[Task_panel|task panel]] opens. |
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# Right-click in the {{MenuCommand|Transformations}} list and select {{MenuCommand|Add scaled transformation}} from the context menu. |
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# A {{MenuCommand|Scaled}} item is added to the list and the task panel is extended at the bottom to allow to set the {{MenuCommand|Factor}} and {{MenuCommand|Occurrences}}. See [[#Options|Options]] for more information. |
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# Press the {{Button|OK}} bar at the bottom. |
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# Press the {{Button|OK}} button at the top to finish. |
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===Scaling a single feature=== |
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# Select a feature of the current body in the [[Tree_view|Tree view]]. |
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# Do one of the following: |
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#* Press the {{Button|[[Image:PartDesign_MultiTransform.svg|16px]] [[PartDesign_MultiTransform|MultiTransform]]}} button. |
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#* Select the {{MenuCommand|Part Design → Apply a pattern → [[Image:PartDesign_MultiTransform.svg|16px]] Create MultiTransform}} option from the menu. |
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# The {{MenuCommand|MultiTransform parameters}} [[Task_panel|task panel]] opens. See above. |
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===Opzioni=== |
===Opzioni=== |
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* {{MenuCommand|Factor}}: The factor to which the last feature is scaled. |
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==Limitations== |
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* {{MenuCommand|Occurrences}}: Number of steps from unscaled (1) to {{MenuCommand|Factor}} (including base and last feature). |
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* Scaling always happens with the centre of gravity of the feature as the base point. |
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** A scaled transformation accepts the number of occurrences of the previous transformation as maximum value or any integer divisor of that number returning an integer result. So {{Value|12}}, {{Value|6}}, {{Value|4}}, {{Value|3}}, and {{Value|2}} are valid for a Linear or Polar Pattern with 12 occurrences. |
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* A scaled transformation should not be the first in the list |
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** A scaled single feature accepts any integer number larger than 1. |
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* The scaled transformation must have the same number of occurrences as the transformation immediately preceding it in the list |
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* See [[PartDesign_LinearPattern|linear pattern feature]] for other limitations |
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==Notes== |
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[[Image:mt_example2.png|c|center|800px]] |
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The smallest pad was first patterned three times in X direction and then scaled to factor two (so the three occurrences have scaling factor 1.0, 1.5 and 2.0). Then a polar pattern was applied with 8 occurrences. |
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* The center of scaling is the features's center of gravity and that may cause: |
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Since the scaling is done with respect to the center of gravity, in the case of a pad, it is necessary that the pad penetrate also in the main body, otherwise the scaled objects are floating, detached from the body. To have a pad that intersects the main body can be used "two dimensions" type or "simmetric to plane" option. |
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** A growing item to protrude on the opposite side of the parent feature. |
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** A shrinking item to lose all contact with the parent feature and disappear. |
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** A shrinking pocket to become an invisible cavity inside the parent feature. |
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|[[PartDesign_MultiTransform|Create MultiTransform]] |
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Latest revision as of 14:30, 16 June 2022
Scala |
Posizione nel menu |
---|
PartDesign → Multitrasformazione |
Ambiente |
PartDesign, Completo |
Avvio veloce |
Nessuno |
Introdotto nella versione |
- |
Vedere anche |
Nessuno |
Descrizione
Lo strumento Scala prende come input un insieme di una o più operazioni selezionate ('gli originali') e li scala per un determinato fattore. Poiché la scalatura avviene attorno al centro di gravità delle operazioni selezionate, di solito gli originali scompaiono all'interno delle versioni in scala. Pertanto, in genere è utile solo per effettuare il ridimensionamento come parte di una operazione di Multi-trasformazione.
A linear pattern and a polar pattern → Scaled the linear pattern with 3 steps (occurrences) and the polar pattern with 12 steps
If there is no previous transformation within the MultiTransform feature, scaled items will be placed at the same position as the base feature. This may result in unexpected shapes if the base feature isn't covered completely by the scaled object. And thus it is not recommended to use Scaled as the first transformation of a MultiTransform feature.
A base feature with a hole → Scaled object with 2 occurrences → Scaled object with 4 occurrences
A partire da FreeCAD 0.15, questa funzione non è disponibile direttamente, ma è inclusa come componente dello strumento Multitrasformazione.
Scaling a transformed feature
- Do one of the following:
- The MultiTransform parameters task panel opens.
- Right-click in the Transformations list and select Add scaled transformation from the context menu.
- A Scaled item is added to the list and the task panel is extended at the bottom to allow to set the Factor and Occurrences. See Options for more information.
- Press the OK bar at the bottom.
- Press the OK button at the top to finish.
Scaling a single feature
- Select a feature of the current body in the Tree view.
- Do one of the following:
- Press the MultiTransform button.
- Select the Part Design → Apply a pattern → Create MultiTransform option from the menu.
- The MultiTransform parameters task panel opens. See above.
Opzioni
Quando si crea una operazione Scala, la finestra di dialogo Parametri della scalatura offre le seguenti opzioni: Selezionare gli originaliLa finestra Vista combinata mostra lista delle operazioni (oggetti) "originali" che devono essere scalati. Fare clic su una operazione per aggiungerla alla lista. Fattore di scala e numero di copieFactor e Occurrences specificano rispettivamente il fattore di scala massimo e il numero totale di forme scalate (inclusa l'originale) che si vuole ottenere. |
- Factor: The factor to which the last feature is scaled.
- Occurrences: Number of steps from unscaled (1) to Factor (including base and last feature).
- A scaled transformation accepts the number of occurrences of the previous transformation as maximum value or any integer divisor of that number returning an integer result. So
12
,6
,4
,3
, and2
are valid for a Linear or Polar Pattern with 12 occurrences. - A scaled single feature accepts any integer number larger than 1.
- A scaled transformation accepts the number of occurrences of the previous transformation as maximum value or any integer divisor of that number returning an integer result. So
Notes
- The center of scaling is the features's center of gravity and that may cause:
- A growing item to protrude on the opposite side of the parent feature.
- A shrinking item to lose all contact with the parent feature and disappear.
- A shrinking pocket to become an invisible cavity inside the parent feature.
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