Middle perimeter plane

If I have a closed curve like this one:

Is there a way to find a plane that passes through the middle of that curve? And by “the middle” I mean the middle of the perimeter, not just the middle between the highest and lowest point.

Here’s an example of me trying to eyeball the plane:


Maybe try to divide the curve into many points and take the average of all the points? The more the number of points the more precise the average will be, so you can also control the precision.

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Hi Roberto -

Grasshopper has a Plane Fit component that does that.

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Turn on control points (or divide the curve and select the resulting points) and use the Rhino command PlaneThroughPt