Sketcher CompCreateConic/zh-cn: Difference between revisions

Revision as of 05:07, 12 July 2019

创建一种圆锥曲线（Create a conic）是草图工作台几何图形工具栏中的一个图标按钮，它集合了多种基于圆锥截面创建曲线的工具。点击此图标右侧的向下箭头会在下侧展开工具集，此时来选取其中的一种工具。

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

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

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 * [[Image:Sketcher_CreateEllipse.png|32px]] [[Sketcher CreateEllipseByCenter|Ellipse by center]] : 根据中点、长半轴点与短半轴点来绘制一个椭圆。
 * [[Image:Sketcher_CreateEllipse_3points.png|32px]] [[Sketcher_CreateEllipseBy3Points|Ellipse by 3 points]] : 根据长轴(也就是两个点)与短半轴点来绘制一个椭圆。
-* [[Image:Sketcher_Elliptical_Arc.png|32px]] [[Sketcher_CreateArcOfEllipse|Arc of ellipse]] : Draws an arc of ellipse by 根据中点、长半轴点、起始点与终点来绘制一段对应椭圆上的弧。
+* [[Image:Sketcher_Elliptical_Arc.png|32px]] [[Sketcher_CreateArcOfEllipse|Arc of ellipse]] : 根据中点、长半轴点、起始点与终点来绘制一段对应椭圆上的弧。
 *[[Image:Sketcher_Hyperbolic_Arc.png|32px]] [[Sketcher_CreateArcOfHyperbola|Arc of hyperbola]]:  <span style="font-size:x-small;color:green;">v0.17及其以上版本</span> 绘制一条双曲线上的弧。
 *[[Image:Sketcher_Parabolic_Arc.png|32px]] [[Sketcher_CreateArcOfParabola|Arc of parabola]]: <span style="font-size:x-small;color:green;">v0.17及其以上版本</span> 绘制一条抛物线上的弧。