[2023-01-23 14_48_21-forcellone aumentato 004.3dm (5 MB) - Rhino 7 Commerciale - Front] Top: made a curve with 4 control points, degree=3. Bottom: made a curve with 3 control points, degree=3, then used “ContinueCurve” command to add a 4th control point, but the resulting shape is different and I…

[image] Riccardo Majewski: I know no command to make it again exactly like the top one You can get the same result by using the MakeUniform command in this case.

[image] Riccardo Majewski: made a curve with 3 control points, degree=3, Third degree curves have at least four control points, according to my understanding.

True, but the problem is still the same. “Continuing” a curve will somehow keep old knot parameter and make a sort of “wrong” output curve. Try it yourself. Curve A = Degree 3 with 5 point Curve B = Degree 3 with 4 points, but then add another point with “ContinueCurve” to have the same control …

Thank you @Mahdiyar , that’s it. I think ContinueCurve should have a MakeUniform option to see directly the correct shape while continuing a curve… It would be much more useful, imho. @Gijs I’m tagging you about this…

Hello- MakeUniform would affect the entire curve, maybe fine in this case but potentially changing the shape a lot if the input curve is not uniform - better to do it yourself for now. RH-72579 ContinueCurve: makeUniform option -Pascal

I understand. But, if I had the option, I would use ContinueCurve with MakeUniform=true all the times.

Continue curve command - unexpected behavior

Rhino

brian (Brian Gillespie) January 24, 2023, 10:36pm 8

RH-72579 is fixed in the latest WIP

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Continue curve command - unexpected behavior

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