ABB 四点法计算 TCP Posted on 2020/01/02 by LT 四点计算工具TCP实现代码 https://mp.weixin.qq.com/s/2S-NrHPjz_JbmSQnATKt5g 根据空间4点坐标求球心坐标 https://wenku.baidu.com/view/82abe82ebd64783e09122b14.html