View Issue Details

IDProjectCategoryView StatusLast Update
0003110SketcherFeaturepublic2021-02-06 05:55
Reporternormandc Assigned Toabdullah  
Status assignedResolutionopen 
Product Version0.17 
Target Version0.20 
Summary0003110: Sketcher: add support of relevant constraints to B-splines
DescriptionThe current implementation of B-splines only support constraints on the B-spline vertices. It would be useful to use other constraints as well (point on object, tangent, perpendicular on the curve).
Tagsb-splines, constraints
FreeCAD Information



2018-11-29 11:14

reporter   ~0012229

Back-link to relevant forum topic

Can this be broken down into two parts?

(1) BSpline is immutable and the other simpler geometry is forced to conform to it -- eg lines are forced equal length or forced perpendicular at point of intersection while the BSpline remains constant.

(2) BSpline can be fully effected and changed by the constraints.

I am looking to use the Length Equality between line and BSpline, which should be the easiest thing, it has to measure it and then apply it.


2022-03-03 13:55

administrator   ~0016551

This ticket has been migrated to GitHub as issue 5716.

Issue History

Date Modified Username Field Change
2017-07-01 08:45 normandc New Issue
2017-07-01 08:45 normandc Status new => assigned
2017-07-01 08:45 normandc Assigned To => abdullah
2017-07-01 11:02 Kunda1 Tag Attached: bugtracker
2017-07-01 11:02 Kunda1 Tag Attached: constraints
2017-07-01 11:03 Kunda1 Tag Detached: bugtracker
2017-07-01 11:03 Kunda1 Tag Attached: b-splines
2018-10-06 15:11 abdullah Target Version => 0.19
2018-11-29 11:14 JulianTodd Note Added: 0012229
2020-11-09 18:09 abdullah Target Version 0.19 => 0.20
2021-02-06 05:55 abdullah Target Version => 0.20