Sketcher ConstrainPointOnObject
Sketcher ConstrainPointOnObject |
Menu location |
---|
Sketch → Sketcher constraints → Constrain point onto object |
Workbenches |
Sketcher |
Default shortcut |
O |
Introduced in version |
- |
See also |
Sketcher ConstrainCoincidentUnified, Sketcher ConstrainCoincident |
Description
The Sketcher ConstrainPointOnObject command fixes points on edges or axes.
introduced in version 0.22: This command is replaced by the Sketcher ConstrainCoincidentUnified command if the Unify Coincident and PointOnObject option is selected in the Sketcher Preferences.
Usage
- Optionally do one of the following:
- Select a single point and a single edge (in any order).
- Select several points and a single edge (idem).
- Select a single point and several edges (idem).
- There are several ways to invoke the command:
- Press the Constrain point onto object button.
- Select the Sketch → Sketcher constraints → Constrain point onto object option from the menu.
- Use the keyboard shortcut: O.
- To indicate that the command has been activated the cursor shows a white cross and the command icon.
- Optionally keep selecting elements. You can only select two elements at a time now.
- To finish the command press Esc or the right mouse button, or start a another constraints or geometries command.
Scripting
The constraint can be created from macros and from the Python console by using the following command:
Sketch.addConstraint(Sketcher.Constraint('PointOnObject',LineMoving,PointOfLineMoving,LineFixed))
Sketch
is a sketch object.LineMoving
is the number that designates the line, which contains the point that has to be moved onto theLineFixed
(the line which is fixed).PointOfLineMoving
is the number of the vertex of lineLineMoving
, that has to be moved onto theLineFixed
.LinedFixed
is the number of the line to be affixed onto the pointPointOfLineMoving
.
The Sketcher scripting page explains how to identify the numbers that designate lines and points.
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
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, Surface, TechDraw, Test Framework
- Hubs: User hub, Power users hub, Developer hub