# Difference between revisions of "Sketcher ConstrainSymmetric"

(Marked this version for translation) |
(How to use) |
||

Line 16: | Line 16: | ||

The symmetrical constraint constrains two selected points to be symmetrical around a given line, i.e., both selected points are constrained to lie on a normal to the line through both points and are constrained to be equidistant from the line. Alternatively it can constrain two points to be symmetric with respect to a third one. | The symmetrical constraint constrains two selected points to be symmetrical around a given line, i.e., both selected points are constrained to lie on a normal to the line through both points and are constrained to be equidistant from the line. Alternatively it can constrain two points to be symmetric with respect to a third one. | ||

− | == | + | ==How to use== <!--T:3--> |

[[File:SymmetricConstraint1.png|256px]]<br /><br /> | [[File:SymmetricConstraint1.png|256px]]<br /><br /> | ||

Select two points (vertexes) in the sketch and a line in the sketch. The selected points and the line will be dark green.<br /><br /> | Select two points (vertexes) in the sketch and a line in the sketch. The selected points and the line will be dark green.<br /><br /> |

## Revision as of 20:21, 24 September 2019

Menu location |
---|

Sketch → Sketcher constraints → Constrain symmetrical |

Workbenches |

Sketcher |

Default shortcut |

S |

Introduced in version |

- |

See also |

Constraint Parallel |

## Contents |

## Description

The symmetrical constraint constrains two selected points to be symmetrical around a given line, i.e., both selected points are constrained to lie on a normal to the line through both points and are constrained to be equidistant from the line. Alternatively it can constrain two points to be symmetric with respect to a third one.

## How to use

Select two points (vertexes) in the sketch and a line in the sketch. The selected points and the line will be dark green.

Click on the SymmetricalConstraint icon in the Sketcher toolbar or select the Constrain Symmetrical menu item from the Sketcher Constraints sub menu of the Sketcher (or Part Design) menu item.
This will apply the constraint to the selected items.

This is a geometric constraint and has no editable parameters.

**The tools:**New sketch, Edit sketch, Leave sketch, View sketch, View section, Map sketch to face, Reorient sketch, Validate sketch, Merge sketches, Mirror sketch

**Sketcher geometries:**Point, Line by 2 point,**Create an arc,**Arc, Arc by 3 Point,**Create a circle**, Circle, Circle by 3 Point,**Create a conic**, Ellipse by center, Ellipse by 3 points, Arc of ellipse, Arc of hyperbola, Arc of parabola,**Create a B-spline**, Create B-spline, Create periodic B-pline, Polyline (multiple-point line), Rectangle,**Create regular polygon**, Triangle, Square, Pentagon, Hexagon, Heptagon, Octagon, Create Regular Polygon, Slot, Fillet, Trimming, Extend, External Geometry, CarbonCopy, Construction Mode

**Sketcher constraints****Geometric constraints**Coincident, Point On Object, Vertical, Horizontal, Parallel, Perpendicular, Tangent, Equal Length, Symmetric, Constrain Block**Dimensional constraints**Lock, Horizontal Distance, Vertical Distance, Distance, Radius, Internal Angle, Snell's Law, Internal Alignment, Toggle reference/driving constraint,

**Sketcher tools**Select solver DOFs, Close Shape, Connect Edges, Select Constraints, Select Origin, Select Vertical Axis, Select Horizontal Axis, Select Redundant Constraints, Select Conflicting Constraints, Select Elements Associated with constraints, Show/Hide internal geometry, Symmetry, Clone, Copy, Move, Rectangular Array, 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, Convert Geometry to B-spline, Increase degree, Increase knot multiplicity, Decrease knot multiplicity

**Sketcher virtual space**Switch Virtual Space

**Getting started****Installation:**Download, Linux, Windows, MacOS, Docker, AppImage, Ubuntu Snap**Basics:**About FreeCAD, Interface, Mouse navigation, Selection methods, Object name, Preferences, Workbenches, Document structure, Properties; Help FreeCAD, Donate

**Help:**Tutorials, Video tutorials**Workbenches:**Std Base; Arch, Draft, FEM, Image, Inspection, Mesh, OpenSCAD, Part, PartDesign, Path, Points, Raytracing, Reverse Engineering, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web**Unmaintained workbenches:**Plot, Robot, Ship**Deprecated workbenches:**Complete, Drawing

**Code:**Addon Manager, Addons, Macros, External workbenches

**Hubs:**User hub, Power users hub, Developer hub