3 point radius of curvature of a circle

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SANA
SANA 2022-12-19
评论： cr 2022-12-19
Hi if i have a single pore, and i have calculated pore boundries already, and i have matrix of x and y cordinates of the pore.
How can i calcualte radius of curvature of 3 points of that pore. Thank you

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回答（1 个）

cr
cr 2022-12-19
Just fit a circle through the xy coordinate data and you would get centre and radius. See
https://lucidar.me/en/mathematics/least-squares-fitting-of-circle/
https://in.mathworks.com/matlabcentral/fileexchange/57668-fit-circle-through-3-points
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Matt J
Matt J 2022-12-19
Why does that matter? Obviously you can repeat the process for every set of 3 points that are of interest.
cr
cr 2022-12-19
I agree with Matt. You can do permute and repeat the circle fitting process for all combinations.

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