function [varargout]=ellipsefit(x,y) %ELLIPSEFIT Stable Direct Least Squares Ellipse Fit to Data. % [Xc,Yc,A,B,Phi,P]=ELLIPSEFIT(X,Y) finds the least squares ellipse that % best fits the data in X and Y. X and Y must have at least 5 data points. % X

ellipsefit为椭圆拟合程序。ellipse1为示例。只要输入点的坐标（无论多少点），此程序就可算出拟合的椭圆方程

ellipsefit为椭圆拟合程序。ellipse1为示例。只要输入点的坐标（无论多少点），此程序就可算出拟合的椭圆方程

椭圆拟合的c++方法，参考github链接 https://github.com/seisgo/EllipseFit，原版是qt版本，改为不依赖qt的版本。 包含两个文件：myEllipse.h和myEllipse.cpp 具体参考：https://blog.csdn.net/iamqianrenzhan/article/details/95536334