Difference between revisions of "Sketcher BSplineComb"

From FreeCAD Documentation
Jump to navigation Jump to search
(Marked this version for translation)
(Marked this version for translation)
 
(25 intermediate revisions by 8 users not shown)
Line 1: Line 1:
 
<languages/>
 
<languages/>
 
<translate>
 
<translate>
 +
 +
<!--T:10-->
 +
{{Docnav
 +
|[[Sketcher_BSplinePolygon|Show/Hide B-spline control polygon]]
 +
|[[Sketcher_BSplineKnotMultiplicity|Show/Hide B-spline knot multiplicity]]
 +
|[[Sketcher_Workbench|Sketcher]]
 +
|IconL=Sketcher_BSplinePolygon.svg
 +
|IconR=Sketcher_BSplineKnotMultiplicity.svg
 +
|IconC=Workbench_Sketcher.svg
 +
}}
 +
 
<!--T:1-->
 
<!--T:1-->
 
{{GuiCommand
 
{{GuiCommand
 
|Name=Sketcher BSplineComb
 
|Name=Sketcher BSplineComb
|Workbenches=[[Sketcher Workbench|Sketcher]]
+
|MenuLocation=Sketch → Sketcher B-spline tools → Show/hide B-spline curvature comb
|MenuLocation=Sketch → Sketcher B-spline tools → show/hide B-spline Curvature Comb
+
|Workbenches=[[Sketcher_Workbench|Sketcher]]
|Shortcut=|
+
|Version=0.17
SeeAlso=[[Sketcher CompCreateBSpline|Create B-spline]]
+
|SeeAlso=[[Sketcher_CompCreateBSpline|Sketcher Create B-spline]]
 
}}
 
}}
 
</translate>
 
 
 
 
[[File:sketcher_BSplineCurvatureShow.png]]  '''<-->'''  [[File:sketcher_BSplineCurvatureHide.png]]
 
<translate>
 
  
 
==Description== <!--T:4-->
 
==Description== <!--T:4-->
  
 
<!--T:9-->
 
<!--T:9-->
Shows or hides the display of the Curvature Comb of a B-spline ( see: https://en.wikipedia.org/wiki/B-spline )
+
Shows or hides the display of the Curvature Comb of a B-spline (see [[B-Splines|this page]] for more info about B-splines).
  
==How to use== <!--T:5-->
+
<!--T:16-->
# Select a B-spline and apply .
+
The curvature comb indicates the curvature (value of the second-order derivative) of the B-spline at every position. The higher the curvature at a position, the more is the the comb away from the curve. For positive curvatures ("turn to the right"), the comb is at the other side of the curve than for negative curvatures.
  
 +
</translate>
 +
[[File:sketcher_BSplineCurvatureShow.png]]
 +
<translate>
 +
<!--T:18-->
 +
{{Caption|B-spline with a saddle point at its mid position - the curvature comb there is zero.}}
  
 +
==Usage== <!--T:19-->
  
==Scripting== <!--T:7-->
+
<!--T:5-->
 +
# Select a B-spline
 +
# Either use the toolbar button {{Button|[[File:Sketcher_BSplineComb.svg|16px]] [[Sketcher_BSplineComb|Show/hide B-spline curvature comb]]}} or use the menu {{MenuCommand|Sketch → Sketcher B-spline tools → Show/Hide B-spline curvature comb}}.
  
</translate>
 
  
<translate>
 
 
<!--T:8-->
 
<!--T:8-->
[[Category:Sketcher]]
+
{{Docnav
 +
|[[Sketcher_BSplinePolygon|Show/Hide B-spline control polygon]]
 +
|[[Sketcher_BSplineKnotMultiplicity|Show/Hide B-spline knot multiplicity]]
 +
|[[Sketcher_Workbench|Sketcher]]
 +
|IconL=Sketcher_BSplinePolygon.svg
 +
|IconR=Sketcher_BSplineKnotMultiplicity.svg
 +
|IconC=Workbench_Sketcher.svg
 +
}}
 +
 
 
</translate>
 
</translate>
{{clear}}
+
{{Sketcher Tools navi{{#translation:}}}}
 +
{{Userdocnavi{{#translation:}}}}

Latest revision as of 17:04, 14 September 2021

Other languages:
Deutsch • ‎English • ‎français • ‎italiano • ‎polski • ‎português do Brasil • ‎русский

Sketcher BSplineComb.svg Sketcher BSplineComb

Menu location
Sketch → Sketcher B-spline tools → Show/hide B-spline curvature comb
Workbenches
Sketcher
Default shortcut
None
Introduced in version
0.17
See also
Sketcher Create B-spline

Description

Shows or hides the display of the Curvature Comb of a B-spline (see this page for more info about B-splines).

The curvature comb indicates the curvature (value of the second-order derivative) of the B-spline at every position. The higher the curvature at a position, the more is the the comb away from the curve. For positive curvatures ("turn to the right"), the comb is at the other side of the curve than for negative curvatures.

Sketcher BSplineCurvatureShow.png

B-spline with a saddle point at its mid position - the curvature comb there is zero.

Usage

  1. Select a B-spline
  2. Either use the toolbar button Sketcher BSplineComb.svg Show/hide B-spline curvature comb or use the menu Sketch → Sketcher B-spline tools → Show/Hide B-spline curvature comb.