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

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Simon 2013-7-8

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编辑： Walter Roberson 2022-3-13

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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Jonathan Sullivan 2013-7-8

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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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Mehrana Raeisian Nejad 2021-7-16

What about 3d lines?

Moreno, M. 2022-3-13

编辑：Walter Roberson 2022-3-13

https://uk.mathworks.com/matlabcentral/fileexchange/107929-discrete-curvature-normals-and-evolute

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