Sketch: Difference between revisions

Revision as of 09:05, 12 December 2019

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Introduction

In FreeCAD the word "Sketch" is normally used to refer to a Sketcher SketchObject (Sketcher::SketchObject class) that is created by the Sketcher Workbench.

How to use

There are two common ways to create a Sketch: using the Sketcher Workbench directly, or through the PartDesign Workbench.

Sketcher Workbench

Switch to the Sketcher Workbench.
Press Sketcher NewSketch.

PartDesign Workbench

See Sketcher SketchObject for more information about this type of object.

Notes

A Sketch is very commonly used in conjunction with the PartDesign Workbench to create solids by extrusion, using the PartDesign Pad operation.

Nevertheless, a Sketch can always be created by itself for any other purpose; it does not have to be tied to a PartDesign Body. For example, the Arch Window tool of the Arch Workbench uses Sketches to define the shapes of windows and doors.

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

Addons: Addon Manager, External workbenches, Scripting and macros

Hubs: User hub, Power users hub, Developer hub

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

@@ Line 31: / Line 31: @@
 <!--T:11-->
-A Sketch is very commonly used in conjunction with the [[PartDesign Workbench|PartDesign Workbench]] to create solids.
+A Sketch is very commonly used in conjunction with the [[PartDesign Workbench|PartDesign Workbench]] to create solids by extrusion, using the {{Button|[[File:PartDesign Pad.svg|16px]] [[PartDesign Pad|PartDesign Pad]]}} operation.
 <!--T:12-->
-Nevertheless, a Sketch can always be created by itself for any other purpose. It does not have to be tied to a [[PartDesign Body|PartDesign Body]] at all. For example, the [[Arch Window|Arch Window]] tool of the [[Arch Workbench|Arch Workbench]] uses Sketches to define the shapes of the windows and doors.
+Nevertheless, a Sketch can always be created by itself for any other purpose; it does not have to be tied to a [[PartDesign Body|PartDesign Body]]. For example, the [[Arch Window|Arch Window]] tool of the [[Arch Workbench|Arch Workbench]] uses Sketches to define the shapes of windows and doors.
 <!--T:13-->