Is there an easy way to find the radius of curvature of a series of points?

2013 7 8
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更新时间：2022 3 13
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Is there an easy way to find the radius of curvature of a series of points? I can fit a spline (7th order most likely) to the curve if I have to, but id really rather not.
Failing that, are there any ways of describing a curve, or curve metrics, without accurately knowing the endpoint? (hence using the radius of curvature)

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Yup. There are a few solutions on the file exchange.
For 2D lines try this link
For 3D surfaces try this one

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