du._ls

用cad进行二次开发

(defun tucen()
  (command "layer" "n" "n1" "n" "n2"
	  "l" "center" "n2" "")
  )
(defun read_file ()
  (tucen)
  (command "layer" "s" "n1" "")
  (initget 1 "1.6 2 2.5 3 4 5 6 8 10 12 14 16 20 24 30 36")
  (princ "可供选择GB/T 848型垫圈的公称尺寸d:1.6 2 2.5 3 4 5 6 8 10 12 14 16 20 24 30 36")
  (setq dd (read (getkword "\n请输入公称尺寸值d:")))
  (setq fp (open "C:/Documents and Settings/Administrator/桌面/du.txt" "r")
	      head (read (read-line fp))
	      data (read (read-line fp))
	)
  (while (not (equal (car data) dd))
    (setq data (read (read-line fp)))
  )
  (mapcar 'set head data)
  (close fp)
  (setq p1 (getpoint "\n请输入垫圈插入点"))
  (setq p2 (polar p1 0 h))
  (setq p3 (polar p2 (/ pi 2) d2))
  (setq p4 (polar p1 (/ pi 2) d2))
  (setq p5 (polar p2 (/ pi 2) (/ (- d2 d1) 2)))
  (setq p6 (polar p1 (/ pi 2) (/ (- d2 d1) 2)))
  (setq p7 (polar p5 (/ pi 2) d1))
  (setq p8 (polar p6 (/ pi 2) d1))
  (command "pline" p1 p2 p5 p6 p1 ""
	   "pline" p3 p4 p8 p7 p3 ""
	   "line" p5 p7 ""
	   "line" p6 p8 "")
  (command "hatch" "u" 45 1 "n" p1 ""
	   "hatch" "u" 45 1 "n" p4 ""
	   )
  (setq p9 (polar p2 (/ pi 2) (/ d2 2)))
  (setq p10 (polar p9 pi h))
  (setq p11 (polar p9 0 d2))
  (command "circle" p11 (/ d1 2)
	   "circle" p11 (/ d2 2))
;以下画中心线
  
  (command "layer" "s" "n2" "")
  (command "line" (polar p10 pi 1) (polar p9 0 1) "")
  (command "line" (polar p11 pi (+ (/ d2 2) 1)) (polar p11 0 (+ (/ d2 2) 1)) ""
	   "line" (polar p11 (/ pi 2) (+ (/ d2 2) 1)) (polar p11 (* pi 1.5) (+ (/ d2 2) 1)) ""
	   )
)