Bug when i use the Tween Function between 2 closed curves

Rhino Rhino for Windows
1

​Hello everyone,

I have a bug in the French version of rhino 8 (I say this because I haven’t seen any comments on the internet so far.)

When I want to use the “intermediate curve” function between 2 curves, I never get a good result, as was the case in previous versions of Rhino.
Impossible to move the starting points to organize the distribution.

I specify that the curves are simple. they are composed of the same number of segments.

I should also point out that I have a 3Dconnexion space navigator which, before modifying the device’s dashboard, did not work as on previous versions of Rhino. I don’t see why there would be an interaction, but since I can’t even move my starting points with the “intermediate curve” function, I tell myself that everything is possible.

Capture d’écran 2024-03-06 14.51.05
Capture d’écran 2024-03-06 14.51.051918×1080 278 KB

I hope you will be able to help me.

Ps: overall, I find that the modeling is becoming more imprecise than in the past… can you confirm?

Sincerely,
Thierry

2

Essayez d’aligner les points de jointure des deux courbes.

3

Merci pour la réponse rapide Helvetosaur.

Mais, comme je le disais, je ne peux pas déplacer mes points de départs sur les 2 courbes…

4

On the other hand, when I explode the curves, the function works well when I use it by taking the curves 2 by 2.

Capture d’écran 2024-03-06 15.22.38
Capture d’écran 2024-03-06 15.22.381918×1080 287 KB

5

Hi @TuckerTheDog
Use CrvSeam before to move and align the seam and direction of the two curves. I never really understood why it isn’t part of the command to be able to move the seam for closed curves :face_with_diagonal_mouth:
HTH, Jakob

6

Thank you !
It works !

Sorry Helvetosaur, I never used this function before rhino 8 (crvseam)… it worked directly in the tween command before, didn’t it?

I close the topic

7

I thought so too - but looks like you can only flip the curves, not change the seam… Been on the enhancement request pile for 3 years or so…

https://mcneel.myjetbrains.com/youtrack/issue/RH-64409/TweenCurves-Align-closed-curve-seams

And unfortunately looks like it will not be added until V9…