公路路线设计中用模式法计算插入圆心的坐标的小程序-road design model method used to insert the coordinates of the center of a circle of small procedures

这是运用vb语言制作的一个关于3点如何计算圆心坐标的应用。-This is the use of VB language made an application on how to calculate the coordinates of the center of the 3 point.