如何利用cad里面的跟踪

梦罪无数 · 发表于 2015-1-25 16:08

如何利用cad里面的跟踪功能绘制一个多种地物组成的一个封闭区的最外围线。最好是一个LSP程序。

LHD244 · 发表于 2015-11-5 14:25

(defun c:zxx ()
  (kmine)
  (setq iii (entlast))
  (command "chprop" iii "" "C" 2 "")
)
(vl-load-com)
(DEFUN errormsg (MSG)
  (IF (= MSG "Function cancelled")
(princ "取消")
(vlr-beep-reaction)
  )
)

(defun eep (ees)
  (setq lwplpt nil
jkkd 0
jjkss1 nil
lwplpt8 nil
lwplpt80 nil
lwplpt88 nil
lwplpt800 nil
  )
  (setq jjkss (entget ees))
  (setq jjkss1 (cdr (assoc 0 jjkss)))
  (if (= jjkss1 "POLYLINE")
(progn
   (setq en (list (assoc 70 jjkss)))
   (while ees
(setq ees (entnext ees))
(setq entnam (entget ees))
(if (= (cdr (assoc 0 entnam)) "SEQEND")
   (setq ees nil)
)
(setq ppp (cdr (assoc 10 entnam)))
(if ppp
   (progn
      (setq en (append en
      (list (list 10 (car ppp) (cadr ppp))
   (assoc 42 entnam)
      )
      )
      )
      (setq kjigh (cdr (assoc 70 entnam)))
      (if (= kjigh 16)
      (setq lwplpt (append lwplpt (list ppp)))
      )
      (if (= kjigh 8)
      (setq lwplpt8  (append lwplpt8 (list ppp))
      lwplpt80 12
      )
      )
      (setq lwplpt88 (append lwplpt88 (list ppp)))
      (if (not (or (= kjigh 16) (= kjigh 8)))
      (setq lwplpt800 12)
      )
      (setq jkkd (+ jkkd 1))
   )
)
   )
   (if (/= lwplpt80 nil)
(setq lwplpt lwplpt8)
   )
   (if (/= lwplpt800 nil)
(setq lwplpt lwplpt88)
   )
)
  )

  (if (= jjkss1 "LWPOLYLINE")
(progn
   (setq jjkss2 nil)
   (setq en jjkss)
   (if (= (assoc 42 (vl-remove (cons 42 0.0) en)) nil)
(progn
   (while
      (setq jjkss3 (car jjkss))
      (if (/= jjkss3 nil)
         (progn
   (setq jjkss4 (car jjkss3))
   (if (= jjkss4 10)
   (progn
      (if (/= jjkss2 nil)
         (setq lwplpt (append lwplpt (list (cdr jjkss3))))
      )
      (if (= jjkss2 nil)
         (setq lwplpt (list (cdr jjkss3))
      jjkss2 1
         )
      )
   )
   )
         )
      )
      (setq jjkss (cdr jjkss))
   )
)
   )
)
  )
  (if (= (assoc 42 (vl-remove (cons 42 0.0) en)) nil)
(setq en nil)
  )
  (if en
(progn
   (if (setq isclosed
   (zerop (1- (logand 1 (setq 70- (cdr (assoc 70 en)))))
   )
   )
(setq en (append en (list (assoc 10 en) (cons 42 0.0))))
   )
   (setq zb t)
   (setq xyz nil)
   (while zb
(setq zb (cdr (assoc 10 en)))
(if zb
   (progn
      (setq xyz (append xyz (list zb)))
      (setq 42x (assoc 42 en))
      (setq 42xm (cdr 42x))
      (if (and (/= 42xm nil) (/= 42xm 0.0))
      (progn
(setq enl (cdr (member 42x en)))
(setq zb2 (cdr (assoc 10 enl)))

(if (/= zb2 nil)
   (progn
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
   (setq jd1 (/ (distance zb zb2) 2))
   (setq ang1 (atan (abs 42xm)))
   (setq ang2 (- (* pi 0.5) ang1))
   (setq ang3 (- ang2 ang1)) ;小角度
   (setq jd2 (/ jd1 (cos ang3))) ;半径
   (setq ang4 (- (angle zb zb2) ang3))
;求中心角度
   (if (> 42xm 0)
   (setq ang4 (+ ang4 (* ang3 2)))
   )
   (setq ang5 (- (* pi 0.5) ang3)) ;小角度互补
   (setq ang6 (- (+ pi ang4) ang5))
   (if (> 42xm 0)
   (setq ang6 (+ ang6 (* ang5 2)))
   )
   (setq zb3 (polar zb ang4 jd2)) ;圆心
   (setq pr (* 2 ang5 jd2)) ;弧长
   (setq ang7 (angle zb3 zb))
   (setq idex (fix (/ pr 0.25)))
   (cond ((< 100 pr) (setq idex 50))
         ((< 90 pr) (setq idex 47))
         ((< 80 pr) (setq idex 44))
         ((< 70 pr) (setq idex 41))
         ((< 60 pr) (setq idex 38))
         ((< 50 pr) (setq idex 35))
         ((< 40 pr) (setq idex 33))
         ((< 30 pr) (setq idex 31))
         ((< 20 pr) (setq idex 29))
         ((< 10 pr) (setq idex 26))
         ((< 8 pr) (setq idex 22))
         ((< 6 pr) (setq idex 19))
         ((< 4 pr) (setq idex 15))
         ((< 2 pr) (setq idex 10))
         ((< 1 pr) (setq idex 8))
         ((< 0.5 pr) (setq idex 7))
         ((< 0.2 pr) (setq idex 5))
         ((< 0.1 pr) (setq idex 3))
         ((< 0.01 pr) (setq idex 0))
   )
   (if (or (= 70- 130) (= 70- 131))
   (if (< pr 0.2)
      (setq idex 0)
   )
   )
   (if (/= idex 0)
   (progn
      (if (or (= 70- 130) (= 70- 131))
         (setq idex (fix (/ idex 3.0)))
      )
      (setq ang9
      (/ (* ang5 (* (/ pr (+ idex 1)) 2.0)) pr)
      )
      (setq ang9m (/ (* ang9 360) pi))
      (if (< 42xm 0)
         (setq ang10 (- ang7 ang9))
         (setq ang10 (+ ang7 ang9))
      )
      (repeat idex
         (setq zb5 (polar zb3 ang10 jd2))
         (setq xyz (append xyz (list zb5)))
         (if (< 42xm 0)
   (setq ang10 (- ang10 ang9))
   (setq ang10 (+ ang10 ang9))
         )
      )
   )
   )
   (setq zb4 (polar zb3 ang6 jd2))

   )
)
      )
      )
   )
)
(setq en (cdr (member 42x en)))
   )
   (setq lwplpt xyz)
   (if isclosed
(setq lwplpt (reverse (cdr (reverse lwplpt))))
   )
)
  )
  lwplpt
)
(defun kmine ()
  (setvar "cmdecho" 0)

  (DEFUN *error* (MSG)
(IF (= MSG "Function cancelled")
   (princ)
   (progn
(vlr-beep-reaction)
(command "")
(setq *error* errormsg)
   )
)
  )
  (setq mp (getpoint "\n 请指定起点:"))
  (if (/= mp nil)
(progn
   (setq mp (list (car mp) (cadr mp) 0.0))
   (setq mp1 (list mp))
   (setq wpp (car mp1))
   (setq wpp1 (list (list (- (car wpp) 0.2) (- (cadr wpp) 0.2) 0.0)
         (list (- (car wpp) 0.2) (+ (cadr wpp) 0.2) 0.0)
         (list (+ (car wpp) 0.2) (+ (cadr wpp) 0.2) 0.0)
         (list (+ (car wpp) 0.2) (- (cadr wpp) 0.2) 0.0)
   )
   )
   (setq uk1 (ssget "cp"
         wpp1
         '((-4 . "<not")
   (8 . "dgx")
   (-4 . "not>")
   (-4 . "<or")
   (0 . "LWPOLYLINE")
   (0 . "POLYLINE")
   (-4 . "or>")
)
)
   )
   (command "pline" mp)
   (setq ummii nil)
   (while (/= mp nil)
(setq mp2 (length mp1))
(if (= mp2 1)
   (progn
      (initget "A M U")
      (setq mp (getpoint (car mp1)
         "\n 指定下一个点或 [跟踪(M)/圆弧(A)]:"
      )
      )
   )
)
(if (/= mp2 1)
   (progn
      (setq wpp (car mp1))
      (setq wpp1
   (list (list (- (car wpp) 0.2) (- (cadr wpp) 0.2) 0.0)
   (list (- (car wpp) 0.2) (+ (cadr wpp) 0.2) 0.0)
   (list (+ (car wpp) 0.2) (+ (cadr wpp) 0.2) 0.0)
   (list (+ (car wpp) 0.2) (- (cadr wpp) 0.2) 0.0)
   )
      )
      (setq uk1 (ssget "cp"
      wpp1
      '((-4 . "<not")
         (8 . "dgx")
         (-4 . "not>")
         (-4 . "<or")
         (0 . "LWPOLYLINE")
         (0 . "POLYLINE")
         (-4 . "or>")
      )
      )
      )

      (initget "A J C G I U L M UM")
      (setq mp
   (getpoint
      (car mp1)
      "\n 指定下一点或 [圆弧(A)/直折(J)/闭合(C)/隔一闭合(G)/垂角(I)/长度(L)/跟踪(M/Um)/放弃(U)]:"
   )
      )
   )
)
(if (= mp nil)
   (command "")
)
(if (= mp "L")
   (command "L")
)
;(if (= mp2 2) (setq sw (entlast)))

(if (= mp "M")
   (progn
      (if (/= mp2 1)
      (setq sw1 (cdr (assoc 5 (entget (entlast)))))
      )
      (if uk1
      (progn
(setq
   uk16 (rtos (+ (car (car mp1)) (cadr (car mp1))) 2 4)
)
(setq sw2 (sslength uk1))
(setq sw3 (ssadd))
(setq sw4  0
      sw14 nil
)
(while (< sw4 sw2)
   (setq sw5 (ssname uk1 sw4))
   (setq sw6 (entget sw5 (list "*")))
   (setq sw7 (cdr (assoc 5 sw6)))
   (if (/= sw7 sw1)
      (progn
      (setq sw8 (eep sw5))
      (setq sw9 (LENGTH sw8))
      (setq sw10 0)
      (while (< sw10 sw9)
(setq sw11 (nth sw10 sw8))
(setq
   sw12 (rtos (+ (car sw11) (cadr sw11)) 2 4)
)
(if (= sw12 uk16)
   (progn
      (setq sw13 '((0 . "LWPOLYLINE")
   (100 . "AcDbEntity")
   (67 . 0)
   (410 . "Model")
   (8 . "0")
   (62 . 1)
   (6 . "Continuous")
   (100 . "AcDbPolyline")
)
      )
      (setq sw13
   (append
      sw13
      (list (cons 90 sw9) (assoc 70 sw6))
   )
      )
      (setq sw13 (append sw13
         '((43 . 0.123)
   (38 . 0.0)
   (39 . 0.0)
)
         )
      )
      (setq sw14 0)
      (while (< sw14 sw9)
      (setq sw15 (nth sw14 sw8))
      (setq sw15
      (list
         (list 10 (car sw15) (cadr sw15))
         '(40 . 0.123)
         '(41 . 0.123)
         '(42 . 0.0)
      )
      )
      (setq sw13 (append sw13 sw15))
      (setq sw14 (+ sw14 1))
      )
      (setq
      sw13 (append sw13 '((210 0.0 0.0 1.0)))
      )
      (entmake sw13)
      (setq ssdw (entlast))
      (setq sw3 (ssadd ssdw sw3))
      (setq sw10 sw9)
   )
)
(setq sw10 (+ sw10 1))
      )
      )
   )
   (setq sw4 (+ sw4 1))
)
(setq sw20 (sslength sw3))
(if (= sw20 0)
   (setq uk1 nil)
)
(if (/= sw20 0)
   (setq uk1 sw3)
)
      )
      )
      (if (not uk1)
      (princ "\n 未能跟踪...")
      )

      (if uk1
      (progn
(setq sw100 sw14)
(while (= (setq uk2 (getpoint (car mp1)
      "\n 请指定跟踪至哪一点... "
      )
   )
   nil
         )
)
(setq wpp1
         (list
   (list (- (car uk2) 0.2) (- (cadr uk2) 0.2) 0.0)
   (list (- (car uk2) 0.2) (+ (cadr uk2) 0.2) 0.0)
   (list (+ (car uk2) 0.2) (+ (cadr uk2) 0.2) 0.0)
   (list (+ (car uk2) 0.2) (- (cadr uk2) 0.2) 0.0)
         )
)
(setq uk3 (ssget "cp"
   wpp1
   '((-4 . "<not")
   (8 . "dgx")
   (-4 . "not>")
   (-4 . "<or")
   (0 . "LWPOLYLINE")
   (0 . "POLYLINE")
   (-4 . "or>")
   )
   )
)
(if uk3
   (progn
      (setq uk17 (rtos (+ (car uk2) (cadr uk2)) 2 4))
      (setq sw2 (sslength uk1))
      (setq sw3 (ssadd))
      (setq sw4  0
   sw14 nil
      )
      (while (< sw4 sw2)
      (setq sw5 (ssname uk1 sw4))
      (setq sw6 (entget sw5 (list "*")))
      (setq sw7 (cdr (assoc 5 sw6)))
      (if (/= sw7 sw1)
(progn
   (setq sw8 (eep sw5))
   (setq sw9 (LENGTH sw8))
   (setq sw10 0)
   (while (< sw10 sw9)
      (setq sw11 (nth sw10 sw8))
      (setq sw12
   (rtos (+ (car sw11) (cadr sw11)) 2 4)
      )
      (if (= sw12 uk17)
      (progn
(setq sw3 (ssadd sw5 sw3))
(setq sw10 sw9)
      )
      )
      (setq sw10 (+ sw10 1))
   )
)
      )
      (setq sw4 (+ sw4 1))
      )
      (setq sw20 (sslength sw3))
      (if (= sw20 0)
      (setq uk3 nil)
      )
      (if (/= sw20 0)
      (setq uk3 sw3)
      )
   )
)
(if (not uk3)
   (princ "\n 未能跟踪...")
)

(if uk3
   (progn
      (setq uk4 (sslength uk1))
      (setq uk5 (sslength uk3))
      (setq uk6  0
   uk12 nil
      )
      (while (< uk6 uk4)
      (setq uk7 (ssname uk1 uk6))
      (setq uk8 (cdr (assoc 5 (entget uk7))))
      (setq uk9 0)
      (while (< uk9 uk5)
(setq uk10 (ssname uk3 uk9))
(setq uk11 (cdr (assoc 5 (entget uk10))))
(if (= uk8 uk11)
   (setq uk12 uk7
uk9  uk5
uk6  uk4
   )
)
(setq uk9 (+ uk9 1))
      )
      (setq uk6 (+ uk6 1))
      )
      (if (not uk12)
      (princ "\n 未能跟踪...")
      )
      (if uk12
      (progn
(setq uk13 (eep uk12))
(setq uk14 (LENGTH uk13))
(setq uk15 0)
(while (< uk15 uk14)
   (setq uk18 (nth uk15 uk13))
   (setq
      uk19 (rtos (+ (car uk18) (cadr uk18)) 2 4)
   )
   (if (= uk16 uk19)
      (setq uk15 uk14)
   )
   (if (= uk17 uk19)
      (setq uk15 uk14
   uk13 (reverse uk13)
      )
   )
   (setq uk15 (+ uk15 1))
)
(setq uk20 nil)
(setq uk21 nil)
(setq uk22 0)
(while (< uk22 uk14)
   (setq uk23 (nth uk22 uk13))
   (if uk20
      (setq uk21 (append uk21 (list uk23)))
   )
   (setq
      uk24 (rtos (+ (car uk23) (cadr uk23)) 2 4)
   )
   (if (= uk24 uk16)
      (setq uk20 uk24)
   )
   (if (= uk24 uk17)
      (setq uk20 nil)
   )
   (setq uk22 (+ uk22 1))
)
(setq uk25 (length uk21))
(setq uk26 0)
(SETQ OSM (GETVAR "OSMODE"))
(SETVAR "OSMODE" 0)
(while (< uk26 uk25)
   (setq uk27 (nth uk26 uk21))
   (setq uk27 (list (car uk27) (cadr uk27) 0.0))
   (setq mp1 (append (list uk27) mp1))
   (command uk27)
   (setq uk26 (+ uk26 1))
)
(SETVAR "OSMODE" osm)
(setq uk44 nil)
(setq uk40 (car uk13))
(setq
   uk41 (rtos (+ (car uk40) (cadr uk40)) 2 4)
)
(setq uk42 (car (reverse uk13)))
(setq
   uk43 (rtos (+ (car uk42) (cadr uk42)) 2 4)
)
(if (= uk41 uk43)
   (progn
      (setq uk13 (reverse (cdr (reverse uk13))))
      (setq uk44 uk41)
   )
)
(setq uk45 (cdr (assoc 70 (entget uk12))))
(if (or (= uk45 1) (= uk45 129))
   (setq uk44 uk41)
)
(if (/= uk44 nil)
   (progn
      (setq uk46 nil)
      (while (not (or (= uk46 "Y") (= uk46 "N")))
      (initget "Y N")
      (setq
uk46 (getpoint
         (car mp1)
         "\n 方向是否正确 Y/N < Y >?  "
      )
      )
      (if (= uk46 nil)
(setq uk46 "Y")
      )
      )
      (if (= uk46 "N")
      (progn
(setq uk47 (length uk13))
(setq uk48 0
      uk51 1
      uk52 nil
      uk53 nil
)
(while (< uk48 uk47)
   (setq uk49 (nth uk48 uk13))
   (setq uk50
   (rtos (+ (car uk49) (cadr uk49))
         2
         4
   )
   )
   (if (= uk50 uk16)
      (setq uk51 nil)
   )
   (if (= uk51 1)
      (setq
      uk52 (append (list uk49) uk52)
      )
   )
   (if (= uk50 uk17)
      (setq uk51 2)
   )
   (if (= uk51 2)
      (setq
      uk53 (append (list uk49) uk53)
      )
   )
   (setq uk48 (+ uk48 1))
)
(setq uk54 (append uk52 uk53))
(setq uk55 0)
(while (< uk55 uk25)
   (setq mp1 (cdr mp1))
   (command "U")
   (setq uk55 (+ uk55 1))
)
(SETQ OSM (GETVAR "OSMODE"))
(SETVAR "OSMODE" 0)
(setq uk25 (length uk54))
(setq uk26 0)
(while (< uk26 uk25)
   (setq uk27 (nth uk26 uk54))
   (setq uk27 (list (car uk27)
   (cadr uk27)
   0.0
      )
   )
   (setq mp1 (append (list uk27) mp1))
   (command uk27)
   (setq uk26 (+ uk26 1))
)
(SETVAR "OSMODE" osm)
      )
      )
   )
)
(setq ummii uk25)
      )
      )
   )
)
(if uk1
   (progn
      (setq sw30 (sslength uk1))
      (setq sw31 0)
      (while (< sw31 sw30)
      (setq sw32 (ssname uk1 sw31))
      (entdel sw32)
      (setq sw31 (+ sw31 1))
      )
   )
)
      )
      )
   )
)
(if (= mp "UM")
   (progn
      (if (not ummii)
      (princ "\n 未能使用该命令!!!!")
      )
      (if ummii
      (progn
(setq mu1 0)
(while (< mu1 ummii)
   (setq mp1 (cdr mp1))
   (command "U")
   (setq mu1 (+ mu1 1))
)
(setq ummii nil)
      )
      )
   )
)

(if (not (or (= mp "P")
      (= mp "E")
      (= mp "N")
      (= mp "A")
      (= mp "J")
      (= mp "C")
      (= mp "G")
      (= mp "I")
      (= mp "L")
      (= mp "U")
      (= mp "M")
      (= mp "UM")
      (= mp nil)
   )
      )
   (progn
      (setq ummii nil)
      (setq mp (list (car mp) (cadr mp) 0.0))
      (setq mp1 (append (list mp) mp1))
      (SETQ OSM (GETVAR "OSMODE"))
      (SETVAR "OSMODE" 0)
      (command mp)
      (SETVAR "OSMODE" osm)
   )
)
(if (= mp "A")
   (progn
      (setq mp3 nil
   mp4 nil
      )
      (while
      (= (setq mp3 (getpoint "\n 指定圆弧上的第二个点: ")) nil)
      )
      (setq mp3 (list (car mp3) (cadr mp3) 0.0))
      (while (= (setq mp4 (getpoint "\n 指定圆弧的端点: ")) nil))
      (setq mp4 (list (car mp4) (cadr mp4) 0.0))
      (setq mp1 (append (list mp4) mp1))
      (SETQ OSM (GETVAR "OSMODE"))
      (SETVAR "OSMODE" 0)
      (command "A" "s")
      (command mp3)
      (command mp4)
      (command "L")
      (SETVAR "OSMODE" osm)
   )
)
(if (= mp "J")
   (progn
      (setq mp10 (car mp1)
   mp11 (cadr mp1)
      )
      (setq mp12 (/ (distance mp10 mp11) 2))
      (grdraw mp10 mp11 1)
      (setq mp8 (angle mp10 mp11))
      (grdraw (polar mp10 (+ mp8 pi) mp12) mp10 1)
      (grdraw (polar mp10 (+ mp8 (* pi 0.5)) mp12) mp10 1)
      (grdraw (polar mp10 (+ mp8 (* pi 1.5)) mp12) mp10 1)
      (while
      (= (setq mp13 (getpoint "\n 指出求线  方  向: ")) nil)
      )
      (setq mp13 (list (car mp13) (cadr mp13) 0.0))
      (setq mp14 (angle mp11 mp10))
      (setq mp15 (angle mp10 mp13))
      (setq mp16 (- mp15 mp14))
      (if (> 0 mp16)
      (setq mp16 (+ mp16 (* pi 2)))
      )
      (princ "\n 已选定的方向")
      (cond ((< mp16 0.523599) (princ " <前> ") (setq mp17 0))
   ((and (> mp16 0.523599) (< mp16 2.0944))
   (princ " <左> ")
   (setq mp17 0.5)
   )
   ((and (> mp16 2.0944) (< mp16 3.66519))
   (princ " <后> ")
   (setq mp17 1)
   )
   ((and (> mp16 3.66519) (< mp16 5.75959))
   (princ " <右> ")
   (setq mp17 1.5)
   )
   ((> mp16 5.75959) (princ " <前> ") (setq mp17 0))
      )
      (setq mp18 (+ (angle mp11 mp10) (* pi mp17)))
      (while (not (setq mp19 (Getdist "\n 距离<米>=? "))))
      (setq mp19 (abs mp19))
      (grdraw mp10 mp11 0)
      (grdraw (polar mp10 (+ mp8 pi) mp12) mp10 0)
      (grdraw (polar mp10 (+ mp8 (* pi 0.5)) mp12) mp10 0)
      (grdraw (polar mp10 (+ mp8 (* pi 1.5)) mp12) mp10 0)
      (setq mp20 (polar mp10 mp18 mp19))
      (SETQ OSM (GETVAR "OSMODE"))
      (SETVAR "OSMODE" 0)
      (command mp20)
      (setq mp1 (append (list mp20) mp1))
      (SETVAR "OSMODE" osm)
   )
)
(if (= mp "C")
   (progn
      (setq mp nil)
      (command "c")
   )
)
(if (= mp "G")
   (progn
      (if (= mp2 2)
      (progn
(setq mp10 (list (/ (+ (caar mp1) (caadr mp1)) 2.0)
   (/ (+ (cadar mp1) (cadadr mp1)) 2.0)
   0.0
   )
)
(while
   (= (setq mp11 (getpoint mp10 "\n 请指定宽度:")) nil)
)
(setq mp11 (list (car mp11) (cadr mp11) 0.0))
(Setq mp12 (Distance (cadr mp1) (car mp1)))
(Setq mp13 (Distance (cadr mp1) mp11))
(Setq mp14 (Angle (cadr mp1) (car mp1)))
(Setq mp15 (Angle (cadr mp1) mp11))
(Setq mp16 (Angle (cadr mp1) (car mp1)))
(setq mp17 (* (sin (- mp15 mp16)) mp13))
(Setq mp18 (Polar (car mp1) (+ mp14 (* 0.5 Pi)) mp17))
(Setq mp19 (Polar mp18 (+ mp14 Pi) mp12))
(SETQ OSM (GETVAR "OSMODE"))
(SETVAR "OSMODE" 0)
(command mp18)
(command mp19)
(COMMAND "c")
(setq mp nil)
(SETVAR "OSMODE" osm)
      )
      )
      (if (> mp2 2)
      (progn
(setq ip4 (car mp1)
      ip6 (nth (- mp2 1) mp1)
      ip7 (nth (- mp2 2) mp1)
)
(Setq L (Distance ip6 ip7))
(Setq L1 (Distance ip6 ip4))
(Setq A (Angle ip6 ip7))
(Setq A1 (Angle ip6 ip4))
(Setq A2 (Angle ip6 ip7))
(setq w (* (sin (- a1 a2)) l1))
(Setq ip4 (Polar ip7 (+ A (* 0.5 Pi)) W))
(SETQ OSM (GETVAR "OSMODE"))
(SETVAR "OSMODE" 0)
(command (Polar ip4 (+ A Pi) L))
(COMMAND "c")
(setq mp nil)
(SETVAR "OSMODE" osm)
      )
      )
   )
)
(if (= mp "I")
   (progn
      (while
      (= (setq ip4 (getpoint (car mp1) "\n 请指定点...")) nil)
      )
      (setq ip4 (list (car ip4) (cadr ip4) 0.0))
      (setq ip6 (cadr mp1)
   ip7 (car mp1)
      )
      (Setq L (Distance ip6 ip7))
      (Setq L1 (Distance ip6 ip4))
      (Setq A (Angle ip6 ip7))
      (Setq A1 (Angle ip6 ip4))
      (Setq A2 (Angle ip6 ip7))
      (setq w (* (sin (- a1 a2)) l1))
      (Setq mp20 (Polar ip7 (+ A (* 0.5 Pi)) W))
      (SETQ OSM (GETVAR "OSMODE"))
      (SETVAR "OSMODE" 0)
      (command mp20)
      (setq mp1 (append (list mp20) mp1))
      (command ip4)
      (setq mp1 (append (list ip4) mp1))
      (SETVAR "OSMODE" osm)
   )
)
(if (= mp "U")
   (progn
      (if (= (length mp1) 1)
      (progn
(princ "\n 已经放弃所有线段。")
(progn "")
      )
      (progn
(setq mp1 (cdr mp1))
(command "U")
(if ummii
   (setq ummii (- ummii 1))
)
(if (= ummii 0)
   (setq ummii nil)
)
      )
      )
   )
)
   )
)
  )
  (setq *error* errormsg)
  (princ)
)

fantasy · 发表于 2015-11-5 16:45

支持一下！

gzbccy · 发表于 2015-11-5 17:03

LHD244 发表于 2015-11-5 14:25
(defun c:zxx ()
(kmine)
(setq iii (entlast))

贴这么长一段代码起什么作用? 没演示, 完全不知所云

jltx123456 · 发表于 2015-11-5 21:06

LHD244 发表于 2015-11-5 14:25
(defun c:zxx ()
(kmine)
(setq iii (entlast))

你是搬运工么?

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[源码] 如何利用cad里面的跟踪

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