Descripción
La utilidad Validar croquis puede utilizarse para analizar y reparar un croquis que ya no es editable o que tiene restricciones no válidas, o para añadir las restricciones coincidentes que faltan a un croquis creado a partir de geometría importada, como los archivos DXF. También puede ser útil para localizar una coincidencia que falta en un boceto nativo que genera un error de "no se puede validar la cara rota" al intentar aplicar una función de DiseñoPieza.
El panel de tareas de validación de Croquizador
Utilización
- This tool cannot be used while a sketch is in edit mode. To finish edit mode see Sketcher LeaveSketch.
- Select a sketch.
- There are several ways to invoke the tool:
- Press the
Validate Sketch button.
- Select the Sketch →
Validate Sketch option from the menu.
- The Sketch Validation task panel opens. See Options for more information.
- Press the Close button to finish.
Opciones
Coincidencias Falta
Finds out missing coincidences for overlapping vertices, and adds them. Press the Find button; a pop up dialog will appear to report how many missing coincidences were found; they will be shown in the 3D View as yellow crosses. Press OK to close the dialog, then press the Fix button to add the missing coincidences.
If necessary, define a different tolerance value in the drop-down field.
Press Highlight Troublesome Vertices to highlight vertexes that are outside this tolerance.
This tolerance is also used by the Find/Fix process.
Leave the "Ignore construction geometry" checkbox checked to disregard construction geometry in the analysis.
Restricciones no válidas
Checks for malformed constraints.
For example, if there is a Circle-Line-Tangent constraint, but it references two lines, it is considered invalid.
(This sometimes happens due to the Topological naming problem, i.e. the external geometry changes type).
It also does other checks, such as for empty links.
Geometría degenerada
Degenerated geometry can result from solver actions in a sketch.
For instance, if a line is forced to shorten to become almost a point.
Other examples: a zero length line or zero radius circle/arc.
Geometría externa invertida
Reversed external geometry can happen because the handling of reversed geometry was changed around revision 0.15.
This process might be helpful if sketches with external-geometry fail to solve because of these changes.
Bloqueo de la orientación de las restricciones
Tangent and perpendicular constraints are implemented (via-point).
Internally they work by constraining the angle between tangent vectors. With tangent constraint for example, the angle can be 0 or 180 degrees (co-directed or opposed vectors). The actual angle is remembered in the constraint data ("constraint orientation is locked"), it guards against flipping. But the angle can be erased ("constraint orientation unlock") or updated; these tools do exactly that.
The locking mechanism typically works well and this tool should not be needed. It should only used after making a backup of the open document.
Sketcher
- General: New Sketch, Edit Sketch, Attach Sketch, Reorient Sketch, Validate Sketch, Merge Sketches, Mirror Sketch, Leave Sketch, Align View to Sketch, Toggle Section View, Toggle Grid, Toggle Snap, Rendering Order, Stop Operation
- Geometries: Point, Polyline, Line, Arc From Center, Arc From 3 Points, Elliptical Arc, Hyperbolic Arc, Parabolic Arc, Circle From Center, Circle From 3 Points, Ellipse From Center, Ellipse From 3 Points, Rectangle, Centered Rectangle, Rounded Rectangle, Triangle, Square, Pentagon, Hexagon, Heptagon, Octagon, Polygon, Slot, Arc Slot, B-Spline, Periodic B-Spline, B-Spline From Knots, Periodic B-Spline From Knots, Toggle Construction Geometry
- Constraints:
- Dimensional Constraints: Dimension, Horizontal Dimension, Vertical Dimension, Distance Dimension, Radius/Diameter Dimension, Radius Dimension, Diameter Dimension, Angle Dimension, Lock Position
- Geometric Constraints: Coincident Constraint (Unified), Coincident Constraint, Point-On-Object Constraint, Horizontal/Vertical Constraint, Horizontal Constraint, Vertical Constraint, Parallel Constraint, Perpendicular Constraint, Tangent/Collinear Constraint, Equal Constraint, Symmetric Constraint, Block Constraint, Refraction Constraint
- Constraint Tools: Toggle Driving/Reference Constraints, Toggle Constraints
- Sketcher Tools: Fillet, Chamfer, Trim Edge, Split Edge, Extend Edge, External Projection, External Intersection, Carbon Copy, Select Origin, Select Horizontal Axis, Select Vertical Axis, Move/Array Transform, Rotate/Polar Transform, Scale, Offset, Mirror, Remove Axes Alignment, Delete All Geometry, Delete All Constraints, Copy Elements, Cut Elements, Paste Elements
- Visual Helpers: Select Under-Constrained Elements, Select Associated Constraints, Select Associated Geometry, Select Redundant Constraints, Select Conflicting Constraints, Toggle Circular Helper for Arcs, Toggle B-Spline Degree, Toggle B-Spline Control Polygon, Toggle B-Spline Curvature Comb, Toggle B-Spline Knot Multiplicity, Toggle B-Spline Control Point Weight, Toggle Internal Geometry, Switch Virtual Space
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, Assembly, BIM, CAM, Draft, FEM, Inspection, Material, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework