草图工作台中的草图验证工具
Sketcher ValidateSketch |
Menu location |
---|
Sketch → Validate sketch… |
Workbenches |
Sketcher, PartDesign |
Default shortcut |
None |
Introduced in version |
- |
See also |
None |
描述
草图验证(Validate sketch)工具可用于修复不可编辑的草图、存在无效约束的草图,以及添加有缺失的重合约束的根据DXF等文件中导入的几何图形所创建的草图。此工具也可有效的定位本地草图中缺失的重合约束,这个问题将导致在您试图运用一个PartDesign特征时生成一个"can't validate broken face"错误。
如何使用
- 选择待验证的草图,可以从模型树或通过单击3D视图中目标对象的一条边进行选择。请注意: 草图一定不能处于编辑模式中。如果您正处于草图编辑模式,需要退出草图编辑模式。
- 从Sketch菜单或Part Design菜单中打开草图验证工具。
- 执行的具体操作请参考下列选项部分。
- 完成验证后点击Close按钮。
选项
缺失重合约束
找出有重合关系却缺失重合约束的顶点,并为之添加重合约束。按下Find按钮;程序会弹出一个对话框来报告找到了多少缺失的重合约束; 并在3D视图中以黄色小十字符号表示出来。按下OK来关闭此对话框,再按Fix按钮来添加缺失的重合约束。
如有需要,可在下拉字段中定义一个更大的公差值。
通过选择"Ignore construction geometry"复选框在分析过程中忽略造型几何图形。
无效约束
逆向外部几何图形
约束方向锁定
Sketcher
- General: Create sketch, Edit sketch, Attach sketch, 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, Polyline, Line, Arc, Arc by 3 points, Arc of ellipse, Arc of hyperbola, Arc of parabola, Circle, Circle by 3 points, Ellipse, Ellipse by 3 points, Rectangle, Centered rectangle, Rounded rectangle, Triangle, Square, Pentagon, Hexagon, Heptagon, Octagon, Regular polygon, Slot, Arc slot, B-spline by control points, Periodic B-spline by control points, B-spline by knots, Periodic B-spline by knots, Toggle construction geometry
- Sketcher constraints:
- Dimensional constraints: Dimension, Horizontal distance, Vertical distance, Distance, Auto radius/diameter, Radius, Diameter, Angle, Lock
- Geometric constraints: Coincident (unified), Coincident, Point on object, Horizontal/vertical, Horizontal, Vertical, Parallel, Perpendicular, Tangent or collinear, Equal, Symmetric, Block
- Other constraints: Refraction (Snell's law)
- Constraint tools: Toggle driving/reference constraint, Activate/deactivate constraint
- Sketcher tools: Fillet, Chamfer, Trim, Split, Extend, External geometry, Carbon copy, Select origin, Select horizontal axis, Select vertical axis, Array transform, Polar transform, Scale transform, Offset geometry, Symmetry, Remove axes alignment, Delete all geometry, Delete all constraints
- Sketcher B-spline tools: Convert geometry to B-spline, Increase B-spline degree, Decrease B-spline degree, Increase knot multiplicity, Decrease knot multiplicity, Insert knot, Join curves
- Sketcher visual: Select unconstrained DoF, Select associated constraints, Select associated geometry, Select redundant constraints, Select conflicting constraints, Show/hide circular helper for arcs, 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, Show/hide internal geometry, 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, Assembly, BIM, CAM, Draft, FEM, Inspection, Mesh, OpenSCAD, Part, PartDesign, Points, Reverse Engineering, Robot, Sketcher, Spreadsheet, Surface, TechDraw, Test Framework
- Hubs: User hub, Power users hub, Developer hub