Hello!

I am still struggling with my arcs I wanted to have like an up-side-down U
(see posting some weeks back).

I started with a spline, placing spheres on it, but this is far to slow to
render since I have *a lot* of those arcs. Is there any quick arc? Maybe
originated from a torus or some other trick?

I like them in a right-angle above my plane,
give the start-point P1 and end-point P2 and a certain height h.

A macro with three parameters P1,P2,h would be cool!

Thanks!

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