Sketcher ConstrainSymmetric/ru: Difference between revisions
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{{Docnav/ru |
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|[[Sketcher_ConstrainEqual/ru| |
|[[Sketcher_ConstrainEqual/ru|Ограничение эквивалентностью]] |
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|[[Sketcher_ConstrainBlock/ru| |
|[[Sketcher_ConstrainBlock/ru|Ограничение перемещения]] |
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|[[Sketcher_Workbench/ru|Sketcher]] |
|[[Sketcher_Workbench/ru|Верстак "Sketcher"]] |
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{{GuiCommand/ru |
{{GuiCommand/ru |
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|Name/ru=Ограничение симметричности |
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|Name=Sketcher ConstrainSymmetric |
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|Name=Sketcher_ConstrainSymmetric |
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|Name/ru=Sketcher ConstrainSymmetric |
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|MenuLocation=Sketch → Ограничения эскиза → Ограничение симметричности |
|MenuLocation=Sketch → Ограничения эскиза → Ограничение симметричности |
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|Shortcut=S |
|Shortcut=S |
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|SeeAlso=[[ |
|SeeAlso=[[Sketcher_ConstrainParallel/ru|Ограничение параллельности]] |
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}} |
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<span id="Description"></span> |
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==Описание== |
==Описание== |
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Ограничение симметричности требует от двух выделенных точек быть симметричными относительно данной линии, то есть от обеих точек требуется лежать на нормали к линии через обе точки на одинаковом расстоянии от линии. Альтернативно, она может наложить ограничение на две точки быть симметричными относительно третьей. |
'''Ограничение симметричности''' требует от двух выделенных точек быть симметричными относительно данной линии, то есть от обеих точек требуется лежать на нормали к линии через обе точки на одинаковом расстоянии от линии. Альтернативно, она может наложить ограничение на две точки быть симметричными относительно третьей. |
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<span id="Usage"></span> |
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==Использование== |
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==Применение== |
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See also: [[Sketcher_Workbench#Drawing_aids|Drawing aids]]. |
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[[File:SymmetricConstraint1.png|500px]] |
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===[[Sketcher_Workbench#Continue_modes|Continue mode]]=== |
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Выделите в эскизе две точки (вершины) и линию. Выделенные точки и линия станут тёмно-зелёными. |
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# Make sure there is no selection. |
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[[File:SymmetricConstraint2.png|500px]] |
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# There are several ways to invoke the tool: |
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#* Press the {{Button|[[Image:Sketcher_ConstrainSymmetric.svg|16px]] [[Sketcher_ConstrainSymmetric|Constrain symmetric]]}} button. |
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#* Select the {{MenuCommand|Sketch → Sketcher constraints → [[Image:Sketcher_ConstrainSymmetric.svg|16px]] Constrain symmetric}} option from the menu. |
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#* {{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. |
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#* Use the keyboard shortcut: {{KEY|S}}. |
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# The cursor changes to a cross with the tool icon. |
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# Do one of the following: |
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#* Select two points and a symmetry point (in that order). |
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#* Select two points and a symmetry line (idem). |
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#* Select a point, a symmetry line and another point (idem). |
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#* Select a line and a symmetry point (idem). |
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# A constraint is added. |
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# Optionally keep creating constraints. |
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# To finish, right-click or press {{KEY|Esc}}, or start another geometry or constraint creation tool. |
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===Run-once mode=== |
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Кликните на иконке SymmetricalConstraint [[File:Constraint_Symmetric.png|16px]] на панели инструментов Sketcher или выделите меню Constrain Symmetrical в субменю Sketcher Constraints в разделе меню Sketcher (или Part Design). |
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# Do one of the following: |
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Это назначит ограничения для выделенных элементов. |
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#* Select two points and a symmetry point (in that order). |
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#* Select two points and a symmetry line (in any order). |
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#* Select a line and a symmetry point (idem). |
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# Invoke the tool as explained above, or with the following additional option: |
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#* {{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. |
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# A constraint is added. |
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<span id="Scripting"></span> |
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[[File:SymmetricConstraint3.png|500px]] |
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==Программирование== |
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Two points and a symmetry line: |
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{{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. |
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* If you click the tool first: select the first point, then the symmetry reference point, and finally the second point. |
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{{Code|code=Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line1, PointOfLine1, Line2, PointOfLine2, SymmetryLine))}} |
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* If you click the tool last: select the first point, then the second point, and finally the symmetry reference point. |
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Two points and a symmetry point: |
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{{Code|code=Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line1, PointOfLine1, Line2, PointOfLine2, LineS, PointOfLineS))}} |
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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): |
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{{Code|code=Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line, 1, Line, 2, LineS, PointOfLineS))}} |
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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. |
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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]. |
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{{Docnav/ru |
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{{Docnav/ru|[[Sketcher_ConstrainEqual/ru|Equal Length]]| |
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|[[Sketcher_ConstrainEqual/ru|Ограничение эквивалентностью]] |
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[[Sketcher_ConstrainBlock/ru|Constrain Block]]|[[Sketcher_Workbench/ru|Sketcher]]|IconL=Constraint_EqualLength.png|IconC=Workbench_Sketcher.svg|IconR=Sketcher_ConstrainBlock.png}} |
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|[[Sketcher_ConstrainBlock/ru|Ограничение перемещения]] |
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|[[Sketcher_Workbench/ru|Верстак "Sketcher"]] |
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|IconL=Sketcher_ConstrainEqual.svg |
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|IconR=Sketcher_ConstrainBlock.svg |
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|IconC=Workbench_Sketcher.svg |
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}} |
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Revision as of 15:03, 23 April 2024
Ограничение симметричности |
Системное название |
---|
Sketcher_ConstrainSymmetric |
Расположение в меню |
Sketch → Ограничения эскиза → Ограничение симметричности |
Верстаки |
Sketcher |
Быстрые клавиши |
S |
Представлено в версии |
- |
См. также |
Ограничение параллельности |
Описание
Ограничение симметричности требует от двух выделенных точек быть симметричными относительно данной линии, то есть от обеих точек требуется лежать на нормали к линии через обе точки на одинаковом расстоянии от линии. Альтернативно, она может наложить ограничение на две точки быть симметричными относительно третьей.
Применение
See also: Drawing aids.
Continue mode
- Make sure there is no selection.
- 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.
- 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 Esc, or start another geometry or constraint creation tool.
Run-once mode
- 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).
- Invoke the tool as explained above, or with the following additional option:
- introduced in version 1.0: Right-click in the 3D view and select the Constrain symmetric option from the context menu.
- A constraint is added.
Программирование
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.
- General: Create sketch, Edit sketch, Map sketch to face, Reorient sketch, Validate sketch, Merge sketches, Mirror sketch, Leave sketch, View sketch, View section, Toggle grid, Toggle snap, Configure rendering order, Stop operation
- Sketcher geometries: Point, Line, Arc, Arc by 3 points, Circle, Circle by 3 points, Ellipse, Ellipse by 3 points, Arc of ellipse, Arc of hyperbola, Arc of parabola, B-spline by control points, Periodic B-spline by control points, B-spline by knots, Periodic B-spline by knots, Polyline, Rectangle, Centered rectangle, Rounded rectangle, Triangle, Square, Pentagon, Hexagon, Heptagon, Octagon, Regular polygon, Slot, Fillet, Corner-preserving fillet, Trim, Extend, Split, External geometry, Carbon copy, Toggle construction geometry
- Sketcher constraints:
- Geometric constraints: Coincident, Point on object, Vertical, Horizontal, Parallel, Perpendicular, Tangent, Equal, Symmetric, Block
- Dimensional constraints: Lock, Horizontal distance, Vertical distance, Distance, Radius or weight, Diameter, Auto radius/diameter, Angle, Refraction (Snell's law)
- Constraint tools: Toggle driving/reference constraint, Activate/deactivate constraint
- Sketcher tools: Select unconstrained DoF, Select associated constraints, Select associated geometry, Select redundant constraints, Select conflicting constraints, Show/hide internal geometry, Select origin, Select horizontal axis, Select vertical axis, Symmetry, Clone, Copy, Move, Rectangular array, Remove axes alignment, Delete all geometry, Delete all constraints
- Sketcher B-spline tools: Show/hide B-spline degree, Show/hide B-spline control polygon, Show/hide B-spline curvature comb, Show/hide B-spline knot multiplicity, Show/hide B-spline control point weight, Convert geometry to B-spline, Increase B-spline degree, Decrease B-spline degree, Increase knot multiplicity, Decrease knot multiplicity, Insert knot, Join curves
- Sketcher virtual space: Switch virtual space
- Additional: Sketcher Dialog, Preferences, Sketcher scripting
- Начинающим
- Установка: Загрузка, Windows, Linux, Mac, Дополнительных компонентов, Docker, AppImage, Ubuntu Snap
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- Помощь: Учебники, Видео учебники
- Верстаки: Std Base, Arch, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework