[Solved] Feature #0003031: Draft To Sketch should handle bsplines and beziers

[Kunda1]

issue #0003031: Draft To Sketch should handle bsplines and beziers

Opening an exclusive legit discussion thread to generate discussion about this Feature. The inspiration for the ticket and idea started in https://forum.freecadweb.org/viewtopic. ... 21#p174038

[NormandC]

The only discussion there can be is, who will step up and implement it?

Draft workbench has BSplines and Bézier curves.

Sketch now has B-spline support.

Draft has a Draft2Sketch conversion utility that is only partially working since it strips B-splines and Bézier from the conversion process. This is a legitimate feature request and one that could have indirect uses, like DXF support when exporting sketches containing B-splines...

[yorik]

Yes draft2sketch should definitely handle it. TBH I was (lazily as always) waiting for things to stabilize in Sketch bsplines , since Abdullah seemed still working on it, but it seems that the python interface won't change anymore.

I'll do this when I have a moment. But bezier curves won't be handled. Or there is a way to convert them to bsplines?

[Chris_G]

At the geometry level, you have :

Code: Select all

bspline = bezier.toBSpline(bezier.FirstParameter, bezier.LastParameter)

[chrisb]

That is good news, since it improves the compatibility between FreeCAD and inkscape, which I like for it's image tracing capabilities and its usability of bezier curves. The user interface of the Sketcher's bsplines is very promising as well.

[chrisb]

Works lik a charm.

[Kunda1]

Solved in git commit d2f4fcb6a2deec4aa4c0ba1501bf07df8aacd86e