晓得和明经搜索一下就有 如果不能满足你需要 自己修改一下代码应该就行
搬运:http://bbs.mjtd.com/forum.php?mod=viewthread&tid=27649&highlight=%CB%AB%CF%DF
 - ;管线绘制 ZZXXQQ 2004.11.11
- (defun c:sx ()
- (setvar "cmdecho" 0)
- (setq oldos (getvar "osmode"))
- (setvar "osmode" 0)
- (setq d (getdist "\n输入管子外径 d= <200>")
- d (if (not d) 200 d)
- d5 (* d 0.5)
- r (getreal (strcat "\n输入管子弯曲半径 <大于" (rtos d5 2 1) "> r= "))
- r (if (not r) d5 r)
- r (if (> d5 r) d5 r)
- rs (- r d5)
- rd (+ r d5)
- pt (getpoint "\n管线起点 <0,0>: ")
- pt (if (/= pt nil) pt (list 0 0))
- al1 (/ pi 2)
- al2 (- al1)
- pt1 (getpoint pt "\n管线下一点 :")
- a (angle pt pt1)
- a1 (+ a al1)
- a2 (+ a al2)
- ds (distance pt1 pt)
- p1 (polar pt a1 d5)
- p2 (polar pt a2 d5)
- p3 (polar p1 a (- ds r))
- p4 (polar p2 a (- ds r))
- pt pt1
- fir p3
- sec p4
- )
- (command "line" p3 p1 "")
- (setq s1 (entlast))
- (command "line" p1 p2 p4 "")
- (setq s2 (entlast))
- (while (setq pt1 (getpoint pt "\n管线下一点 :"))
- (setq a0 (angle pt pt1)
- a1 (+ a0 al1)
- a2 (+ a0 al2)
- ds (distance pt1 pt)
- p1 (polar (polar pt a1 d5) a0 r)
- p2 (polar (polar pt a2 d5) a0 r)
- p3 (polar p1 a0 (- ds r r))
- p4 (polar p2 a0 (- ds r r))
- )
- (command "line" p1 p3 "")
- (setq s3 (entlast))
- (command "line" p2 p4 "")
- (setq s4 (entlast))
- (if (> (distance p1 fir) (distance p2 sec))
- (command "fillet" "r" rs "fillet" s2 s4 "fillet" "r" rd "fillet" s1 s3)
- (command "fillet" "r" rd "fillet" s2 s4 "fillet" "r" rs "fillet" s1 s3)
- )
- (setq a a0
- pt pt1
- s1 s3
- s2 s4
- fir p3
- sec p4
- )
- )
- (setq p1 (polar p3 a0 r)
- p2 (polar p4 a0 r)
- )
- (command "stretch" "c" p3 p3 "" p3 p1 "stretch" "c" p4 p4 "" p4 p2)
- (command "line" p1 p2 "")
- (setvar "osmode" oldos)
- (setvar "cmdecho" 1)
- (princ)
- )
|