Sketcher CreatePeriodicBSpline: Difference between revisions

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# There are several ways to invoke the command:
# Press the {{Button|[[File:Sketcher_CreatePeriodicBSpline.svg|16px]] [[Sketcher_CreatePeriodicBSpline|Periodic B-spline by control points]]}} button.
#* Press the {{Button|[[Image:Sketcher_CreatePeriodicBSpline.svg|16px]] [[Sketcher_CreatePeriodicBSpline|Periodic B-spline by control points]]}} button.
#* Select the {{MenuCommand|Sketcher → Sketcher geometries → [[Image:Sketcher_CreatePeriodicBSpline.svg|16px]] Create periodic B-spline}} option from the menu.
#* The keyboard shortcut: {{KEY|G}} then {{KEY|B}}, {{KEY|P}}.
# For further steps see [[Sketcher_CreateBSpline#Usage|Sketcher CreateBSpline]].
# For further steps see [[Sketcher_CreateBSpline#Usage|Sketcher CreateBSpline]].



Revision as of 16:00, 1 February 2024

Sketcher CreatePeriodicBSpline

Menu location
Sketch → Sketcher geometries → Create periodic B-spline
Workbenches
Sketcher
Default shortcut
G B P
Introduced in version
0.17
See also
Sketcher B-spline

Description

This tool traces a periodic (closed) B-spline curve from its control points. (See this page for more info about B-splines.)

A periodic B-spline curve (in white) made from 5 points. Pictured are the control polygon in green (the straight lines connecting the red points), the weight circles in blue and the curvature comb in green. The (3) digit in the centre refers to the degree of the B-spline, and the (1) and (2) digits on the knots lying on the curve refer to their multiplicity.

Usage

  1. There are several ways to invoke the command:
    • Press the Periodic B-spline by control points button.
    • Select the Sketcher → Sketcher geometries → Create periodic B-spline option from the menu.
    • The keyboard shortcut: G then B, P.
  2. For further steps see Sketcher CreateBSpline.

Notes

See Sketcher CreateBSpline.

Limitations

See Sketcher CreateBSpline.