Sketcher ConstrainSymmetric: Difference between revisions
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{{GuiCommand|Name=Constraint_Symmetric|Workbenches=[[Sketcher Workbench|Sketcher]], [[PartDesign Module|PartDesign_Workbench]]|MenuLocation=Sketcher → Constrain symmetrical|SeeAlso=[[Constraint parallel]]]}} |
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<!--T:5--> |
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====Description==== |
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{{Docnav |
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|[[Sketcher_ConstrainEqual|Equal]] |
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|[[Sketcher_ConstrainBlock|Block]] |
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|[[Sketcher_Workbench|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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<WRONG> This tool draws an arc by picking three points: the center, the start angle along the radius, and the end angle. |
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{{GuiCommand |
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|Name=Sketcher ConstrainSymmetric |
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|MenuLocation=Sketch → Sketcher constraints → Constrain symmetric |
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|Workbenches=[[Sketcher_Workbench|Sketcher]] |
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|Shortcut={{KEY|S}} |
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|SeeAlso= |
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}} |
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==Description== <!--T:17--> |
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When starting the tool, the mouse pointer changes to a white cross with a red arc icon. The coordinates of the pointer are shown beside it in blue in real time. |
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<!--T:2--> |
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[[Image:Sketcher_ArcExample1.png|The center has been selected, dragging to set the radius]] [[Image:Sketcher_ArcExample2.png|407x360px|The center and start angle have been selected, dragging to set end angle]] </WRONG> |
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The [[Image:Sketcher_ConstrainSymmetric.svg|24px]] [[Sketcher_ConstrainSymmetric|Sketcher ConstrainSymmetric]] tool constrains two points to be symmetrical around a line or axis, or around a third point. |
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==Usage== <!--T:3--> |
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<!--T:23--> |
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<WRONG> * Pick points on an empty area of the 3D view, or on an existing object (auto constraints must be active in TaskView). |
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See also: [[Sketcher_Workbench#Drawing_aids|Drawing aids]]. |
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* Pressing {{KEY|ESC}} or clicking the right mouse button cancels the function. </WRONG> |
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===[[Sketcher_Workbench#Continue_modes|Continue mode]]=== <!--T:24--> |
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<!--T:25--> |
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{{languages | {{es|Sketcher_Arc/es}} }} |
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# Make sure there is no selection. |
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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=== <!--T:26--> |
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<!--T:27--> |
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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 (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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== Scripting == <!--T:18--> |
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<!--T:19--> |
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Two points and a symmetry line: |
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</translate> |
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{{Code|code=Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line1, PointOfLine1, Line2, PointOfLine2, SymmetryLine))}} |
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<translate> |
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Two points and a symmetry point: |
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</translate> |
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{{Code|code=Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line1, PointOfLine1, Line2, PointOfLine2, LineS, PointOfLineS))}} |
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<translate> |
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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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</translate> |
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{{Code|code=Sketch.addConstraint(Sketcher.Constraint('Symmetric', Line, 1, Line, 2, LineS, PointOfLineS))}} |
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<translate> |
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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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<!--T:6--> |
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{{Docnav |
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|[[Sketcher_ConstrainEqual|Equal]] |
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|[[Sketcher_ConstrainBlock|Block]] |
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|[[Sketcher_Workbench|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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</translate> |
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{{Sketcher_Tools_navi{{#translation:}}}} |
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{{Userdocnavi{{#translation:}}}} |
Revision as of 13:19, 24 April 2024
Sketcher ConstrainSymmetric |
Menu location |
---|
Sketch → Sketcher constraints → Constrain symmetric |
Workbenches |
Sketcher |
Default shortcut |
S |
Introduced in version |
- |
See also |
None |
Description
The Sketcher ConstrainSymmetric tool constrains two points to be symmetrical around a line or axis, or around a third point.
Usage
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.
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.
Sketcher
- 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
User documentation
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