利用VB对给定坐标点进行拟合圆计算，提供圆心、半径参数。

拟合圆程序，实现根据测量点实现二维平面内圆的拟合，可以输入测量点，C语言实现-Circle fitting procedure, to achieve the realization of measurement points in accordance with two-dimensional plane of fitting a round, you can enter the measurement points, C language

calcCircle.m程序采用通过三点来拟合一个圆，可以得到圆的关键参数（圆心坐标和半径）。-Fitting circle through three points

实现多点拟合圆操作，并且可以显示坐标，修改坐标值后，可重新显示图形，且可与原图形对比-Multi-point fitting circle operation, and can display the coordinates after modify the coordinate values ​ ​ can be re-display graphics, and comparison with the original graphics