Sketcher: Ghid sau constrângeri definitive
|
|
| Menu location |
|---|
| Sketch → Sketcher constraints → Toggle reference/driving constraint |
| Workbenches |
| Sketcher, PartDesign |
| Default shortcut |
| None |
| Introduced in version |
| - |
| See also |
| Toggle Construction |
Descriere
Iconița Toggle Constraint comută constrângerile dimensionale (bloc, distanță orizontală sau verticală, lungime, rază și unghi) în modul de referință și invers. Pictogramele din bara de instrumente devin albastre și, în locul constrângerilor dimensionale, se creează dimensiuni de referință. Dimensiunile de referință nu leagă schița. Poate fi utilă crearea unor dimensiuni de referință într-o schiță ca modalitate de verificare a măsurătorilor; când li se dă un nume, ele pot fi, de asemenea, folosite pentru a ghida constrângerile într-o altă schiță prin expressions.
Contrary to driving constraints, reference constraints do not constrain the sketch, their value depends on other constraints, they are driven. They can be useful to verify measurements. They can be used in expressions, but not in the sketch itself.
O constrângere la distanță orizontală (50 mm), o constrângere verticală (30 mm) și o constrângere de unghi (75 °) au fost stabilite pentru a defini profilul; o dimensiune de referință a fost adăugată segmentului de linie înclinată pentru a cunoaște lungimea sa (31.0583 mm).
Cum se folosește
Toggle tools
- Se apasă butonul
Toggle reference/driving constraint . Iconițele constrângerilor dimensiuonale în bara de instrumente Sketcher Constraints se schimbă din culaorea roșie în culoarea albastră. - The usual method of creating dimensional constraints works the same, but a blue reference dimension is added instead.
- To turn the Sketcher Constraints toolbar back to constraint mode (red), press the Toggle Constraint button again.
- Pentru a transforma o constrângere dimensională într-o dimensiune de referință sau pentru viceversa, selectați-o și apăsați butonul Toggle Constraint.
Toggle constraints
- Select one or more dimensional constraints.
- Invoke the tool as described above, or with one of the following additional options:
- introduced in version 1.0: Right-click in the 3D view and select the
Toggle driving/reference constraint option from the context menu. - Right-click in the Constraints section of the Sketcher Dialog and select the Toggle to/from reference option from the context menu.
- introduced in version 1.0: Right-click in the 3D view and select the
- The selected constraints are changed from driving to reference mode or vice versa. Their appearance changes accordingly.
- The mode of the dimensional constraint creation tools is not changed.
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
- Getting started
- Installation: Download, Windows, Linux, Mac, Additional components, 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, Assembly, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Start, Surface, TechDraw, Test Framework, Web
- Hubs: User hub, Power users hub, Developer hub