curve:3pt+chord2pt
说明:已知圆弧上三点pt1,pt2,pt3,求此圆弧上和pt-on-arc弦长为chord-length的点
用法:
(curve:3pt+chord2pt pt1 pt2 pt3 chord-length pt-on-arc)
参数:1 pt1 : 单个2D/3D坐标点;2 pt2 : 单个2D/3D坐标点;3 pt3 : 单个2D/3D坐标点;4 chord-length : 未识别定义;5 pt-on-arc : 单个2D/3D坐标点;
返回值:pt
示例:
(curve:3pt+chord2pt pt1 pt2 pt3 chord-length pt-on-arc)