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Howto set Arc Ratio with Constrain "Length / Arc Ratio"? (by Geert Hospers)
In the attached file I want to make angle between line 1 and line 2 twice as large as the angle between line 2 and line 3.
How should that be done with Constrain "Length / Arc Ratio"?

I would expect that it works the same way as with:
Equal Length / Radius / Angle
This constraint forces two lengths, angles, or radiuses to be equal.

The equal-angle constraint requires four vectors as input: the two equal angles are the angle between each pair of inputs. For example, select line segments A, B, C, and D. The constraint forces the angle between lines A and B to be equal to the angle between lines C and D.
Thu May 2 2024, 07:22:17, download attachment Length _ Arc Ratio.slvs
(no subject) (by Geert Hospers)
Probably I misunderstood that an arc is not an angle, but something that has a Length = Angle_in_radians * Radius.

The problem remains: how can I set the ratio between angles?
Thu May 2 2024, 07:59:17
(no subject) (by Paul)
If you have two arcs with equal radius, setting a length ratio should give you that same ratio between the angles. You can add a construction line/arc if you need the existing arcs to be different radius.
Thu May 2 2024, 10:44:00
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