Sketcher BSplineKnotMultiplicity: Difference between revisions

Latest revision as of 20:31, 16 April 2024

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This documentation is a work in progress. Please don't mark it as translatable since it will change in the next hours and days.

Show/hide B-spline curvature comb

Show/hide B-spline control point weight

Sketcher

Menu location
Sketcher BSplineKnotMultiplicity
Sketch → Sketcher visual → Show/hide B-spline information layer → Show/hide B-spline knot multiplicity
Workbenches
Sketcher
Default shortcut
None
Introduced in version
0.17
See also
Sketcher CreateBSpline

Description

The Sketcher BSplineKnotMultiplicity tool shows or hides the B-spline knot multiplicity in all sketches. See this page for an explanation about knot multiplicity.

The numbers (1), (3) and (4) (green, in round brackets) refer to the multiplicity of the knot points.

Usage

There are several ways to invoke the tool:
- Press the B-spline knot multiplicity button.
- Select the Sketch → Sketcher visual → Show/hide B-spline information layer → B-spline knot multiplicity option from the menu.

Show/hide B-spline curvature comb

Show/hide B-spline control point weight

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, Start, Surface, TechDraw, Test Framework, Web

Addons: Addon Manager, External workbenches, Scripting and macros

Hubs: User hub, Power users hub, Developer hub

@@ Line 1: / Line 1: @@
 <languages/>
+{{Page_in_progress}}
 <translate>
 <!--T:12-->
+{{Docnav
-{{Docnav|[[Sketcher_BSplineComb|Show/Hide B-spline curvature comb]]|[[Sketcher_BSplineConvertToNURB|Convert Geometry to B-spline]]|[[Sketcher_Workbench|Sketcher]]|IconL=Sketcher_BSplineComb.svg|IconC=Workbench_Sketcher.svg|IconR=Sketcher_BSplineConvertToNURB.svg}}
+|[[Sketcher_BSplineComb|Show/hide B-spline curvature comb]]
+|[[Sketcher_BSplinePoleWeight|Show/hide B-spline control point weight]]
+|[[Sketcher_Workbench|Sketcher]]
+|IconL=Sketcher_BSplineComb.svg
+|IconR=Sketcher_BSplinePoleWeight.svg
+|IconC=Workbench_Sketcher.svg
+}}
 <!--T:1-->
 {{GuiCommand
 |Name=Sketcher BSplineKnotMultiplicity
+|MenuLocation=Sketch → Sketcher visual → Show/hide B-spline information layer → Show/hide B-spline knot multiplicity
-|Workbenches=[[Sketcher Workbench|Sketcher]]
+|Workbenches=[[Sketcher_Workbench|Sketcher]]
-|MenuLocation=Sketch → Sketcher B-spline tools → Show/Hide B-spline knot multiplicity
 |Version=0.17
-|SeeAlso=[[Sketcher CompCreateBSpline|Create B-spline]]
+|SeeAlso=[[Sketcher_CreateBSpline|Sketcher CreateBSpline]]
 }}
@@ Line 16: / Line 25: @@
 <!--T:9-->
+The [[Image:Sketcher_BSplineKnotMultiplicity.svg|24px]] [[Sketcher_BSplineKnotMultiplicity|Sketcher BSplineKnotMultiplicity]] tool shows or hides the B-spline knot multiplicity in all sketches. See [[Sketcher_BSplineDecreaseKnotMultiplicity#Notes|this page]] for an explanation about knot multiplicity.
-Shows or hides the display of the knot multiplicity of a B-spline curve (see [https://en.wikipedia.org/wiki/B-spline B-spline]).
 </translate>
-[[File:sketcher_BSplineMultiplicityShow.png]]
+[[File:Sketcher_KnotMultiplicity_multiplicity3.png|500px]]
 <translate>
-<!--T:10-->
+<!--T:17-->
+{{Caption|The numbers (1), (3) and (4) (green, in round brackets) refer to the [[Sketcher_BSplineDecreaseKnotMultiplicity#Description|multiplicity]] of the knot points.}}
-{{Caption|B-spline curve showing knot multiplicity.}}
-</translate>
-[[File:sketcher_BSplineMultiplicityHide.png]]
-<translate>
-<!--T:11-->
-{{Caption|B-spline curve without knot multiplicity information.}}
 ==Usage== <!--T:5-->
 <!--T:15-->
+# There are several ways to invoke the tool:
-# Select a B-spline and apply.
+#* Press the {{Button|[[Image:Sketcher_BSplineKnotMultiplicity.svg|16px]] [[Sketcher_BSplineKnotMultiplicity|B-spline knot multiplicity]]}} button.
+#* Select the {{MenuCommand|Sketch → Sketcher visual → Show/hide B-spline information layer → [[Image:Sketcher_BSplineKnotMultiplicity.svg|16px]] B-spline knot multiplicity}} option from the menu.
 <!--T:8-->
+{{Docnav
-{{Docnav|[[Sketcher_BSplineComb|Show/Hide B-spline curvature comb]]|[[Sketcher_BSplineConvertToNURB|Convert Geometry to B-spline]]|[[Sketcher_Workbench|Sketcher]]|IconL=Sketcher_BSplineComb.svg|IconC=Workbench_Sketcher.svg|IconR=Sketcher_BSplineConvertToNURB.svg}}
+|[[Sketcher_BSplineComb|Show/hide B-spline curvature comb]]
+|[[Sketcher_BSplinePoleWeight|Show/hide B-spline control point weight]]
+|[[Sketcher_Workbench|Sketcher]]
+|IconL=Sketcher_BSplineComb.svg
+|IconR=Sketcher_BSplinePoleWeight.svg
+|IconC=Workbench_Sketcher.svg
+}}
 </translate>
-{{Sketcher Tools navi{{#translation:}}}}
+{{Sketcher_Tools_navi{{#translation:}}}}
 {{Userdocnavi{{#translation:}}}}
-{{clear}}