|
|
| Menu location |
|---|
| Sketch → Sketcher visual → Show/hide B-spline information layer → Show/hide B-spline curvature comb |
| Workbenches |
| Sketcher |
| Default shortcut |
| None |
| Introduced in version |
| 0.17 |
| See also |
| Sketcher CreateBSpline |
Description
The 
Sketcher BSplineComb tool shows or hides the B-spline curvature comb in all sketches.
The curvature comb indicates the curvature (value of the second-order derivative) along a B-spline. The higher the curvature, the longer the comb's teeth are. Where a B-spline curves to the right the comb is on its left side and vice versa.
B-spline with a saddle point at its midpoint, the curvature comb is zero there.
Usage
- There are several ways to invoke the tool:
- Press the Show/hide B-spline curvature comb button.
- Select the Sketch → Sketcher visual → Show/hide B-spline information layer → Show/hide B-spline curvature comb option from the menu.
- Press the
このページは以下から取得されています https://wiki.freecad.org/Sketcher_BSplineComb