Creating new curve at a plane or certain elevation

Hello,

I am trying to create a curve/arc that increases in elevation to a certain level, then continuous flat on that elevation. Is it possible to draw a curve at a specified plane? As you can see from my picture, when I use arc @startpoint/endpoint the elevation is not consistent.

And a little side question. How do you get out the endpoint of a curve in the Code block?

Help is much appriciated.

A node that can help you here is PullOntoPlane
And if you duplicate your curve you could probably pull one on the fist plane and the second on the other plane and then intersect.
For getting the endpoint of a curve, in DesignScript, you can try Node to Code in the rightclick menu.

Geometry.Transform could also help here.

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