|
|
| Menu location |
|---|
| Sketch → 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 a 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 → B-Spline Tools → Insert Knot option from the menu.
- introduced in 1.0: 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.
このページは以下から取得されています https://wiki.freecad.org/Sketcher_BSplineInsertKnot