Sketcher BSplineInsertKnot
|
|
| Menu location |
|---|
| Sketch → Sketcher B-spline tools → Insert knot |
| Workbenches |
| Sketcher |
| Default shortcut |
| None |
| Introduced in version |
| 0.20 |
| See also |
| Sketcher BSplineIncreaseKnotMultiplicity, Sketcher BSplineDecreaseKnotMultiplicity |
Description
The 
Sketcher BSplineInsertKnot tool inserts a knot into an existing B-spline. If a knot already exists at the specified parameter its multiplicity is increased by one.
Usage
- Select a B-spline.
- There are several ways to invoke the tool:
- Press the
Insert knot button. - Select the Sketch → Sketcher B-spline tools → Insert knot option from the menu.
- introduced in version 0.22: Right-click in the 3D view and select the Insert knot option from the context menu.
- Press the
- Move the cursor to the desired location.
- The current position is marked with a small circle and its parameter value is indicated.
- Click to insert a knot, or click an existing knot to increase its multiplicity.
- This tool always runs in continue mode: optionally keep inserting knots and/or increasing multiplicity values.
- To finish, right-click or press Esc, or start geometry or constraint creation tool.
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
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- Hubs: User hub, Power users hub, Developer hub