確定circle曲率

最小二乘法擬合圓

https://blog.csdn.net/liyuanbhu/article/details/50889951

 

圓上三點求圓心和半徑

https://blog.csdn.net/lijiayu2015/article/details/52541730

 

三點確定一個圓的計算方法

https://blog.csdn.net/liyuanbhu/article/details/52891868

 

三點確定曲率

https://blog.csdn.net/Amych_/article/details/80209950