Sketcher CreateArc: Difference between revisions
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#* Press the {{Button|[[Image:Sketcher_CreateArc.svg|16px]] [[Sketcher_CreateArc|Center and end points]]}} button. |
#* Press the {{Button|[[Image:Sketcher_CreateArc.svg|16px]] [[Sketcher_CreateArc|Center and end points]]}} button. |
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#* Select the {{MenuCommand|Sketcher → Sketcher geometries → [[Image:Sketcher_Create3PointArc.svg|16px]] Create arc by center}} option from the menu. |
#* Select the {{MenuCommand|Sketcher → Sketcher geometries → [[Image:Sketcher_Create3PointArc.svg|16px]] Create arc by center}} option from the menu. |
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#* Right-click in the Sketch view and select the {{MenuCommand|[[Image:Sketcher_Create3PointArc.svg|16px]] Create arc by center}} option from the context menu. |
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#* The keyboard shortcut: {{KEY|G}} then {{KEY|A}}. |
#* The keyboard shortcut: {{KEY|G}} then {{KEY|A}}. |
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# Define the positions of arc center, start point, and end point. See [[#Point_definition_options|Point definition options]] below. |
# Define the positions of arc center, start point, and end point. See [[#Point_definition_options|Point definition options]] below. |
Revision as of 12:37, 1 February 2024
Sketcher CreateArc |
Menu location |
---|
Sketch → Sketcher geometries → Create arc by center |
Workbenches |
Sketcher |
Default shortcut |
G A |
Introduced in version |
- |
See also |
Sketcher Circle |
Description
The Sketcher CreateArc tool draws an arc by picking three points: the center, the start point for the radius, and the end point for the angle.
When starting the tool, the mouse pointer changes to a white cross with a red arc icon:
Information about the pointer position such as coordinates, radius, and angles are shown in real time next to the pointer in blue or optionally in separate LineEdit widgets (introduced in version 0.22).
Arc with automatically applied constraints as defined by entering tool parameters in the LineEdit widgets
(leaving only the angle of the start point disregarded)
Usage
- There are several ways to invoke the command:
- Press the Center and end points button.
- Select the Sketcher → Sketcher geometries → Create arc by center option from the menu.
- Right-click in the Sketch view and select the Create arc by center option from the context menu.
- The keyboard shortcut: G then A.
- Define the positions of arc center, start point, and end point. See Point definition options below.
- The arc will be drawn and the command will finish.
Modes
If the Geometry creation "Continue Mode" preference is checked:
- The command will restart after finishing.
- Press Esc or right-click in an empty area of the 3D view to exit the command.
Point definition options
There are three options to define the position of the arc points:
- Select an existing point to copy its position.
- Click in an empty area of the 3D view to place a new point.
- Enter tool parameters (introduced in version 0.22):
- The x and y coordinates to set the arc center.
- Values for the radius, and the angle from the sketch's x axis to set the start point.
- A value for the angle along the arc to set the end point.
The options can be mixed as you like.
Press Esc or right-click in an empty area of the 3D view to clear all points defined so far and start again; repeat to exit the command.
Notes
- Tool parameters and their related LineEdit widgets are only available if the On-Views-Parameters preference is set to
All
orOnly dimensional
. - If tool parameters were entered the corresponding constraints are also applied to the arc accordingly (introduced in version 0.22).
- 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
- 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, Surface, TechDraw, Test Framework
- Hubs: User hub, Power users hub, Developer hub