Sketcher BSplineInsertKnot: Difference between revisions

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{{Docnav
{{Docnav
|[[Sketcher_BSplineDecreaseKnotMultiplicity|Decrease knot multiplicity]]
|[[Sketcher_BSplineDecreaseKnotMultiplicity|Decrease knot multiplicity]]
|[[Sketcher_JoinCurves|Join curves]]
|[[Sketcher_SwitchVirtualSpace|Switch virtual space]]
|[[Sketcher_Workbench|Sketcher]]
|[[Sketcher_Workbench|Sketcher]]
|IconL=Sketcher_BSplineDecreaseKnotMultiplicity.svg
|IconL=Sketcher_BSplineDecreaseKnotMultiplicity.svg
|IconR=Sketcher_SwitchVirtualSpace.svg‎
|IconR=Sketcher_JoinCurves.svg‎
|IconC=Workbench_Sketcher.svg
|IconC=Workbench_Sketcher.svg
}}
}}
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|Workbenches=[[Sketcher_Workbench|Sketcher]]
|Workbenches=[[Sketcher_Workbench|Sketcher]]
|Version=0.20
|Version=0.20
|SeeAlso=[[Sketcher_BSplineKnotMultiplicity|Sketcher Show/hide B-spline knot multiplicity]], [[Sketcher_BSplineIncreaseKnotMultiplicity|Sketcher BSpline Increase knot multiplicity]], [[Sketcher_BSplineDecreaseKnotMultiplicity|Sketcher BSpline Decrease knot multiplicity]]
|SeeAlso=[[Sketcher_BSplineIncreaseKnotMultiplicity|Sketcher BSplineIncreaseKnotMultiplicity]], [[Sketcher_BSplineDecreaseKnotMultiplicity|Sketcher BSplineDecreaseKnotMultiplicity]]
}}
}}


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<!--T:4-->
Inserts a knot into an existing [[B-Splines|B-spline]]. If a knot already exists at the specified parameter, increases the multiplicity of that knot by one.
The [[Image:Sketcher_BSplineInsertKnot.svg|24px]] [[Sketcher_BSplineInsertKnot|Sketcher BSplineInsertKnot]] tool inserts a knot into a [[B-Splines|B-spline]]. If a knot already exists at the specified parameter its multiplicity is increased by one.


==Usage== <!--T:5-->
==Usage== <!--T:5-->


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# Select a B-spline, then either:
# Select a B-spline.
# There are several ways to invoke the tool:
#* Press the button {{Button|[[File:Sketcher_BSplineInsertKnot.svg|16px]] [[Sketcher_BSplineInsertKnot|Insert knot]]}}.
#* Use the menu {{MenuCommand|Sketch → Sketcher B-spline tools → [[File:Sketcher_BSplineInsertKnot.svg|16px]] Insert knot}}.
#* Press the {{Button|[[File:Sketcher_BSplineInsertKnot.svg|16px]] [[Sketcher_BSplineInsertKnot|Insert knot]]}} button.
#* Select the {{MenuCommand|Sketch → Sketcher B-spline tools → [[Image:Sketcher_BSplineInsertKnot.svg|16px]] Insert knot}} option from the menu.
# Move the cursor to the desired location where the new knot point is to be created, and click to insert the knot. The parametric value of the knot is displayed for reference.
#* {{Version|1.0}}: Right-click in the [[3D_view|3D view]] and select the {{MenuCommand|[[Image:Sketcher_BSplineInsertKnot.svg|16px]] Insert knot}} option from the context menu.
# Optionally repeat the step above to create more knots.
# Move the cursor to the desired location.
# Right click or press {{KEY|Esc}} to exit knot insertion mode.
# The current position is marked with a small circle and its parameter value is indicated.
# Optionally use [[File:Sketcher_BSplineIncreaseKnotMultiplicity.svg|24px]] [[Sketcher_BSplineIncreaseKnotMultiplicity|Increase knot multiplicity]] to increase the multiplicity of the knot(s).
# 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 {{KEY|Esc}}, or start geometry or constraint creation tool.




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{{Docnav
{{Docnav
|[[Sketcher_BSplineDecreaseKnotMultiplicity|Decrease knot multiplicity]]
|[[Sketcher_BSplineDecreaseKnotMultiplicity|Decrease knot multiplicity]]
|[[Sketcher_JoinCurves|Join curves]]
|[[Sketcher_SwitchVirtualSpace|Switch virtual space]]
|[[Sketcher_Workbench|Sketcher]]
|[[Sketcher_Workbench|Sketcher]]
|IconL=Sketcher_BSplineDecreaseKnotMultiplicity.svg
|IconL=Sketcher_BSplineDecreaseKnotMultiplicity.svg
|IconR=Sketcher_SwitchVirtualSpace.svg‎
|IconR=Sketcher_JoinCurves.svg‎
|IconC=Workbench_Sketcher.svg
|IconC=Workbench_Sketcher.svg
}}
}}

Latest revision as of 07:37, 22 April 2024

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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 a B-spline. If a knot already exists at the specified parameter its multiplicity is increased by one.

Usage

  1. Select a B-spline.
  2. 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 1.0: Right-click in the 3D view and select the Insert knot option from the context menu.
  3. Move the cursor to the desired location.
  4. The current position is marked with a small circle and its parameter value is indicated.
  5. Click to insert a knot, or click an existing knot to increase its multiplicity.
  6. This tool always runs in continue mode: optionally keep inserting knots and/or increasing multiplicity values.
  7. To finish, right-click or press Esc, or start geometry or constraint creation tool.