AutoLISP线段端点画圆和内接正方形
2011-03-28 10:17 精诚所至 金石为开 阅读(632) 评论(0) 编辑 收藏 举报AutoLISP线段端点画圆和内接正方形，代码如下。
(defun c:test()
(setvar "cmdecho" 0)
(setq en (car (entsel "\n选取线：")))
(setq endata (entget en))
(setq pt1 (cdr (assoc 10 endata)))
(setq pt2 (cdr (assoc 11 endata)))
(setq dd (distance pt1 pt2))
(setq ang (angle pt1 pt2))
(setq s_rr (/ dd 5))
(princ (strcat "\n------<线段长度=" (rtos dd 2) ">------"))
(setq str_rr (strcat "\n圆半径<" (rtos s_rr 2) ">:"))
(setq rr (getdist pt1 str_rr))
(if (null rr) (setq rr s_rr))
(command "circle" pt1 rr)
(setq ciren1 (entlast))
(command "circle" pt2 rr)
(setq ciren2 (entlast))
(command "trim" ciren1 ciren2 "" (list en pt1) (list en pt2) "")
(command "polygon" 4 pt1 "i" (polar pt1 ang rr))
(command "polygon" 4 pt2 "i" (polar pt2 (- ang pi) rr))
(prin1)
)
代码完。
