Sketcher BSplineDecreaseDegree: Difference between revisions

Latest revision as of 11:15, 2 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.

Increase B-spline degree

Increase knot multiplicity

Sketcher

Menu location
Sketcher BSplineDecreaseDegree
Sketch → Sketcher B-spline tools → Decrease B-spline degree
Workbenches
Sketcher
Default shortcut
None
Introduced in version
0.19
See also
Sketcher BSplineIncreaseDegree

Description

The Sketcher BSplineDecreaseDegree tool decreases the degree (order) of B-splines.

Usage

Select one or more B-splines.
There are several ways to invoke the tool:
- Press the Decrease B-spline degree button.
- Select the Sketch → Sketcher B-spline tools → Decrease B-spline degree option from the menu.
- introduced in version 0.22: Right-click in the 3D view and select the Decrease B-spline degree option from the context menu.

Example

See Sketcher BSplineIncreaseDegree.

Increase B-spline degree

Increase knot multiplicity

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:14-->
 {{Docnav
-|[[Sketcher_BSplineIncreaseDegree|Increase degree]]
+|[[Sketcher_BSplineIncreaseDegree|Increase B-spline degree]]
 |[[Sketcher_BSplineIncreaseKnotMultiplicity|Increase knot multiplicity]]
 |[[Sketcher_Workbench|Sketcher]]
 |IconL=Sketcher_BSplineIncreaseDegree.svg
-|IconC=Workbench_Sketcher.svg
 |IconR=Sketcher_BSplineIncreaseKnotMultiplicity.svg
+|IconC=Workbench_Sketcher.svg
 }}
@@ Line 14: / Line 16: @@
 {{GuiCommand
 |Name=Sketcher BSplineDecreaseDegree
+|MenuLocation=Sketch → Sketcher B-spline tools → Decrease B-spline degree
 |Workbenches=[[Sketcher_Workbench|Sketcher]]
-|MenuLocation=Sketch → Sketcher B-spline tools → Decrease Degree of B-spline
 |Version=0.19
-|SeeAlso=[[Sketcher_BSplineIncreaseDegree|Decrease B-spline degree]]
+|SeeAlso=[[Sketcher_BSplineIncreaseDegree|Sketcher BSplineIncreaseDegree]]
 }}
@@ Line 23: / Line 25: @@
 <!--T:10-->
+The [[Image:Sketcher_BSplineDecreaseDegree.svg|24px]] [[Sketcher_BSplineDecreaseDegree|Sketcher BSplineDecreaseDegree]]  tool decreases the degree (order) of [[B-Splines|B-splines]].
-Decreases the degree of the B-spline(see [https://en.wikipedia.org/wiki/B-spline B-spline]).
-</translate>
-[[File:Sketcher_SampleBSplineIncreaseDegree.png|350px]]
-<translate>
-<!--T:13-->
-{{Caption|Same B-spline with different Degrees.}}
 ==Usage== <!--T:5-->
 <!--T:17-->
+# Select one or more B-splines.
-# Select an edge from an existing B-spline, and press {{Button|[[File:Sketcher_BSplinedecreaseDegree.svg|16px]] [[Sketcher_BSplinedecreaseDegree|B-spline decrease degree]]}}.
+# There are several ways to invoke the tool:
+#* Press the {{Button|[[Image:Sketcher_BSplineDecreaseDegree.svg|16px]] [[Sketcher_BSplineDecreaseDegree|Decrease B-spline degree]]}} button.
+#* Select the {{MenuCommand|Sketch → Sketcher B-spline tools → [[Image:Sketcher_BSplineDecreaseDegree.svg|16px]] Decrease B-spline degree}} option from the menu.
+#* {{Version|0.22}}: Right-click in the [[3D_view|3D view]] and select the {{MenuCommand|[[Image:Sketcher_BSplineDecreaseDegree.svg|16px]] Decrease B-spline degree}} option from the context menu.
+==Example==
+See [[Sketcher_BSplineIncreaseDegree#Example|Sketcher BSplineIncreaseDegree]].
 <!--T:8-->
 {{Docnav
-|[[Sketcher_BSplineIncreaseDegree|Increase degree]]
+|[[Sketcher_BSplineIncreaseDegree|Increase B-spline degree]]
 |[[Sketcher_BSplineIncreaseKnotMultiplicity|Increase knot multiplicity]]
 |[[Sketcher_Workbench|Sketcher]]
 |IconL=Sketcher_BSplineIncreaseDegree.svg
-|IconC=Workbench_Sketcher.svg
 |IconR=Sketcher_BSplineIncreaseKnotMultiplicity.svg
+|IconC=Workbench_Sketcher.svg
 }}
@@ Line 50: / Line 54: @@
 {{Sketcher Tools navi{{#translation:}}}}
 {{Userdocnavi{{#translation:}}}}
-{{clear}}