<< For the target point, drag out a construction line between the other 2 points and then snap the target point on that line

<< then snap the target point on that line

What is the best target ?
Middle Help Line, Perpendicular Help line, or any on Help Line ?
Because there are several "Snaped cross" who are "created" on the Help Line!

Hi Pilou,

re:
> What is the best target ?

Whatever you decide makes the shape how you want it. There isn't any automatic "best" way to position control points, it's up to your own judgement.

- Michael

Thanks Michael, a useful tip. I hadn't thought of using the Move command for this.

"At some point I'd like to see if I can get the Transform > Align command to also work with a custom direction instead of only horizontal/vertical."

That would be very welcome, thanks in advance.

Regards,

Metin

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visualization • illustration • animation • 3D (print) design — https://metinseven.com