Sketcher ConstrainSymmetric/it: Difference between revisions

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{{Docnav/it|[[Sketcher_ConstrainEqual/it|Uguale lunghezza]]|[[Sketcher_ConstrainBlock/it|Fissa]]|[[Sketcher_Workbench/it|Sketcher]]|IconL=Constraint_EqualLength.png|IconC=Workbench_Sketcher.svg|IconR=Sketcher_ConstrainBlock.png}}
{{Docnav/it|[[Sketcher_ConstrainEqual/it|Uguale lunghezza]]|[[Sketcher_ConstrainBlock/it|Fissa]]|[[Sketcher_Workbench/it|Sketcher]]|IconL=Constraint_EqualLength.png|IconC=Workbench_Sketcher.svg|IconR=Sketcher_ConstrainBlock.png}}
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<div class="mw-translate-fuzzy">
{{GuiCommand/it|Name=Sketcher ConstrainSymmetric|Name/it=Simmetria|Workbenches=[[Sketcher Workbench/it|Schizzo]]|MenuLocation=Schizzo → Vincoli → Simmetria|Shortcut=S|SeeAlso=[[Sketcher ConstrainParallel/it|Parallela]]}}
{{GuiCommand/it|Name=Sketcher ConstrainSymmetric|Name/it=Simmetria|Workbenches=[[Sketcher Workbench/it|Schizzo]]|MenuLocation=Schizzo → Vincoli → Simmetria|Shortcut=S|SeeAlso=[[Sketcher ConstrainParallel/it|Parallela]]}}
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<span id="Description"></span>
==Descrizione==
==Descrizione==

<div class="mw-translate-fuzzy">
Il vincolo Simmetria forza due punti selezionati ad essere simmetrici rispetto ad una data linea. Entrambi i punti selezionati sono vincolati a giacere sulla normale alla linea di simmetria attraverso gli stessi due punti e sono vincolati equidistanti dalla linea.
Il vincolo Simmetria forza due punti selezionati ad essere simmetrici rispetto ad una data linea. Entrambi i punti selezionati sono vincolati a giacere sulla normale alla linea di simmetria attraverso gli stessi due punti e sono vincolati equidistanti dalla linea.
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<span id="Usage"></span>
==Uso==
==Utilizzo==


See also: [[Sketcher_Workbench#Drawing_aids|Drawing aids]].
[[File:SymmetricConstraint1.png|256px]]


===[[Sketcher_Workbench#Continue_modes|Continue mode]]===
Selezionare due punti (vertici) e una linea nello schizzo.
La linea e i punti selezionati assumono il colore verde scuro.


# Make sure there is no selection.
[[File:SymmetricConstraint2.png|256px]]
# There are several ways to invoke the tool:
#* Press the {{Button|[[Image:Sketcher_ConstrainSymmetric.svg|16px]] [[Sketcher_ConstrainSymmetric|Constrain symmetric]]}} button.
#* Select the {{MenuCommand|Sketch → Sketcher constraints → [[Image:Sketcher_ConstrainSymmetric.svg|16px]] Constrain symmetric}} option from the menu.
#* {{Version|1.0}}: Right-click in the [[3D_view|3D view]] and select the {{MenuCommand|Constrain → [[Image:Sketcher_ConstrainSymmetric.svg|16px]] Constrain symmetric}} option from the context menu.
#* Use the keyboard shortcut: {{KEY|S}}.
# The cursor changes to a cross with the tool icon.
# Do one of the following:
#* Select two points and a symmetry point (in that order).
#* Select two points and a symmetry line (idem).
#* Select a point, a symmetry line and another point (idem).
#* Select a line and a symmetry point (idem).
# A constraint is added.
# Optionally keep creating constraints.
# To finish, right-click or press {{KEY|Esc}}, or start another geometry or constraint creation tool.


===Run-once mode===
Fare clic sull'icona [[File:Constraint_Symmetric.png|16px]] nella barra degli strumenti di vincolo o selezionare il Vincolo Simmetria dal sottomenu dell'ambiente Schizzo (o quello dell'ambiente PartDesign).


# Do one of the following:
Questo applica il vincolo agli elementi selezionati.
#* Select two points and a symmetry point (in that order).
#* Select two points and a symmetry line (in any order).
#* Select a line and a symmetry point (idem).
# Invoke the tool as explained above, or with the following additional option:
#* {{Version|1.0}}: Right-click in the [[3D_view|3D view]] and select the {{MenuCommand|[[Image:Sketcher_ConstrainSymmetric.svg|16px]] Constrain symmetric}} option from the context menu.
# A constraint is added.


== Scripting ==
[[File:SymmetricConstraint3.png|256px]]


Two points and a symmetry line:
{{Emphasis|Note:}} if you want to define a symmetry constraint with respect to a point, the order of the selection is important, depending on if you select the tool at the beginning or at the end.
* If you click the tool first: select the first point, then the symmetry reference point, and finally the second point.
* If you click the tool last: select the first point, then the second point, and finally the symmetry reference point.


{{Code|code=Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line1, PointOfLine1, Line2, PointOfLine2, SymmetryLine))}}
See the tracker [https://freecadweb.org/tracker/view.php?id=4144 issue #4144], and [https://forum.freecadweb.org/viewtopic.php?f=3&t=39611 forum thread].


Two points and a symmetry point:
{{Docnav/it|[[Sketcher_ConstrainEqual/it|Uguale lunghezza]]|[[Sketcher_ConstrainBlock/it|Fissa]]|[[Sketcher_Workbench/it|Sketcher]]|IconL=Constraint_EqualLength.png|IconC=Workbench_Sketcher.svg|IconR=Sketcher_ConstrainBlock.png}}


{{Code|code=Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line1, PointOfLine1, Line2, PointOfLine2, LineS, PointOfLineS))}}
{{Sketcher Tools navi/it}}

A line and a symmetry point (In the GUI one can select a line and a point, but it uses internally the same form as above, with the two extremities of the same line):

{{Code|code=Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line, 1, Line, 2, LineS, PointOfLineS))}}

The [[Sketcher_scripting|Sketcher scripting]] page explains the values which can be used for {{incode|Line1}}, {{incode|Line2}}, {{incode|LineS}}, {{incode|Line}}, {{incode|PointOfLine1}}, {{incode|PointOfLine2}} and {{incode|PointOfLineS}}, and contains further examples on how to create constraints from Python scripts.


<div class="mw-translate-fuzzy">
{{Docnav/it|[[Sketcher_ConstrainEqual/it|Uguale lunghezza]]|[[Sketcher_ConstrainBlock/it|Fissa]]|[[Sketcher_Workbench/it|Sketcher]]|IconL=Constraint_EqualLength.png|IconC=Workbench_Sketcher.svg|IconR=Sketcher_ConstrainBlock.png}}
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{{Sketcher_Tools_navi{{#translation:}}}}
{{Userdocnavi/it}}
{{Userdocnavi{{#translation:}}}}

Revision as of 15:03, 23 April 2024

Simmetria

Posizione nel menu
Schizzo → Vincoli → Simmetria
Ambiente
Schizzo
Avvio veloce
S
Introdotto nella versione
-
Vedere anche
Parallela

Descrizione

Il vincolo Simmetria forza due punti selezionati ad essere simmetrici rispetto ad una data linea. Entrambi i punti selezionati sono vincolati a giacere sulla normale alla linea di simmetria attraverso gli stessi due punti e sono vincolati equidistanti dalla linea.

Utilizzo

See also: Drawing aids.

Continue mode

  1. Make sure there is no selection.
  2. There are several ways to invoke the tool:
    • Press the Constrain symmetric button.
    • Select the Sketch → Sketcher constraints → Constrain symmetric option from the menu.
    • introduced in version 1.0: Right-click in the 3D view and select the Constrain → Constrain symmetric option from the context menu.
    • Use the keyboard shortcut: S.
  3. The cursor changes to a cross with the tool icon.
  4. Do one of the following:
    • Select two points and a symmetry point (in that order).
    • Select two points and a symmetry line (idem).
    • Select a point, a symmetry line and another point (idem).
    • Select a line and a symmetry point (idem).
  5. A constraint is added.
  6. Optionally keep creating constraints.
  7. To finish, right-click or press Esc, or start another geometry or constraint creation tool.

Run-once mode

  1. Do one of the following:
    • Select two points and a symmetry point (in that order).
    • Select two points and a symmetry line (in any order).
    • Select a line and a symmetry point (idem).
  2. Invoke the tool as explained above, or with the following additional option:
  3. A constraint is added.

Scripting

Two points and a symmetry line:

Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line1, PointOfLine1, Line2, PointOfLine2, SymmetryLine))

Two points and a symmetry point:

Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line1, PointOfLine1, Line2, PointOfLine2, LineS, PointOfLineS))

A line and a symmetry point (In the GUI one can select a line and a point, but it uses internally the same form as above, with the two extremities of the same line):

Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line, 1, Line, 2, LineS, PointOfLineS))

The Sketcher scripting page explains the values which can be used for Line1, Line2, LineS, Line, PointOfLine1, PointOfLine2 and PointOfLineS, and contains further examples on how to create constraints from Python scripts.