0003157: Expose makeLoft smoothing algorithm, max degree, and parametrization type to the user. - FreeCAD Tracker

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ID	Project	Category	View Status	Date Submitted	Last Update

0003157	FreeCAD	Feature	public	2017-08-11 20:55	2021-02-06 06:50

Reporter	Sam	Assigned To
Priority	normal	Severity	minor	Reproducibility	have not tried
Status	new	Resolution	open
Product Version	0.17
Target Version	0.20

Summary	0003157: Expose makeLoft smoothing algorithm, max degree, and parametrization type to the user.
Description	I was having some issues with a loft that produced and unexpected outcome. I don't think I'm alone. Over in the forum, at Unexpected Klein bottle during PDN loft, there has been some discussion about this. The interesting words start at the end of this post. [quote=Chris_G] I looked at the source code. The makeLoft function uses OCC BRepOffsetAPI_ThruSections that offers these control functions ( smoothing algorithm, setting the max degree, setting the parametrization type). So it may be good to have them implemented in the loft tool ? [/quote] Followed up by Joyas It would add more options when Loft takes its own path and forgets the user's intention. Sometimes you draw a nice set of sections using the same sketch (with different sizes and orientations), you think that everything will go well, but... loft prefers to cross itself between two of these sections. :cry: https://freecadweb.org/wiki/Part_Loft_Technical_Details Joyas When number of profiles exceeds 9, interpolation degree is dropped to 3. This switchover can substantially reduce wiggling. "max degree" could be implemented in a simple way: default (9 or more ---> 3), infinite and a integer number.
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FreeCAD Information

Date Modified	Username	Field	Change
2017-08-11 20:55	Sam	New Issue
2017-08-22 20:27	Kunda1	Description Updated
2019-09-05 21:21	Kunda1	Description Updated
2019-09-05 21:22	Kunda1	Description Updated
2019-09-05 21:24	Kunda1	Description Updated
2019-09-05 21:26	Kunda1	Note Added: 0013545
2021-02-06 06:50	abdullah	Target Version	=> 0.20