此文系转载，转载自哪里忘记了，原作者是谁也不知道。有知道的可以告诉我，我在帖子里写上
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不再神神秘秘，齿轮轮齿渐开线、螺栓、弹簧autolsp源程序大公开，源程序见下面：
( h" i, s; k! z9 A/ m+ Z( \一、齿轮轮齿渐开渐开线3 e5 x) O; a% }+ U# m: o* s
5 [2 }2 {- k, f0 L' W- (defun c:gear(/)' ^' n; V# O& d
- (2 j! K- B9 A4 d
- setq8 }" n! g/ w8 j0 m
- p0 (getpoint"输入齿轮中心p0: ")6 ]2 j: r+ f( Z2 p
- m (getreal"输入齿轮模数M: ")
- q- ^$ p7 E ?1 z$ B2 s - z (getint"输入齿轮齿数Z: ")
1 N/ \2 d; F7 e - ha 1
: i$ @+ N/ D( g% _2 U2 x3 f - c 0.25
' x% E/ q& H3 Q - a (/ pi 9)# ^6 H' k2 C. b: _8 L% v* w
- ra(/ (* (+ z (+ ha ha)) m) 2)5 x1 l/ W0 u0 M9 j, y% K
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
# W6 B: j" F0 ~8 A" A - r(/ ( * m z) 2)
# K- c3 F( H# [4 ^ - rb ( * r (cos a))3 T7 C, I3 c: G+ a- d, ]6 C
- ri rb$ Z) N4 c9 h; y) ]! \+ z
- ang 0& [+ o( |7 t2 T: |' g+ z o( N
- g (polar p0 ang rb)3 ]9 n: r8 a p% L& B
- )
* U% N0 H/ d F - (command "circle" p0 ra)
. \5 o+ _0 R1 t& j& A: H - (command "circle" p0 rf)6 u: e# K. E$ D! \: h4 e- N
- (command "circle" p0 r), z9 Z: [. B; ^' o% V
- (command "line" g)- F" s8 R4 N' T6 [) t1 }
- 9 H: f1 F$ q9 `# J0 s* w
- (while (< ri ra)* P* T; | w/ T; A2 `
- (setq7 T0 h: E. T+ ^
- ang ( + ang(/ pi 360))+ i2 q& [! A& x5 @8 v7 B
- ri ( / rb (cos ang))
$ {" M/ r: M+ D& k4 Y, g# b - cta ( - (/ (sin ang) (cos ang)) ang)
2 T1 u4 M0 [5 w - g(polar p0 cta ri), ]% e5 ?1 C5 E1 _! t8 K3 w
- )0 N. \, ^1 K% u2 r8 `+ o3 j/ ]
- 3 Z: _! J, v9 e
- (command g)
2 Y$ q4 T& @, X - ); [$ k! ]8 a4 _" A6 ?2 `# o
- (command )
# ^. U2 P! J" W8 `2 ^4 ?) z" G - )( v+ T% d4 z4 K" y2 K: o
' f0 Z; d5 ^. j* D. T' |( f3 g7 x! m8 {
b7 {% n' F5 }# i- m% ?9 f二、螺旋源程序- s+ [4 l, ]) `" x/ ^0 e
0 k8 q, C$ K; x$ `# J/ F
- (defun errMsg (s)4 q4 ?0 i* Z2 H4 m& ~
- (if (/= s "function cancelled") (princ (strcat ": U! G! ` x6 Z/ I( b
- Error: " s)))) p: V: K: O6 d- q2 B* x
- ; 当命令执行时出现错误
$ j' N2 C/ [2 P0 E - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
+ L5 S/ o% p' ]* s! ~* V - (setvar "osmode" osmold)
9 `$ a' W9 F# V1 ^) F8 \, v - (setq *error* olderr) ; 恢复旧的错误处理/ t) v A" I) A# Q! N3 }8 h
- (princ)2 j& A$ h/ R6 X! P' J
- )
3 U) B/ r2 A- k4 N - ; R W% M* c) h/ b9 b
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle
4 I- [. f' U( h! `3 E7 x8 w+ V" A - ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
& @" w- r/ }( x8 I) T, I - ;-------------------------------------------------------------------8 ~- `% B* p/ y& ~* v; t! A
- ; 获取公制外径大小、螺距总长0 d: E2 w2 S( H0 v+ v
- ; 然后计算一系列几何点
% t% U! |( q2 o+ J( ^2 { - ; 并且关闭对象捕捉、命令回显
- r2 S- `' [$ E8 \ - ;-------------------------------------------------------------------
; c# c* j$ r( ]0 {& f$ H - (setq 4H (list 0.0015 0.002 0.002 0.0025 0.003 0.0035 0.004 0.005 0.006 0.007 0.008 0.009 0.010))
, t- F+ o& A& ?4 |$ f - (setq 5H (list 0.002 0.0025 0.003 0.004 0.0045 0.0055 0.0065 0.0075 0.009 0.010 0.0115 0.0125 0.0135)) ; a1 m" J) S, q
- (setq 6H (list 0.003 0.004 0.0045 0.0055 0.0065 0.008 0.0095 0.011 0.0125 0.0145 0.016 0.018 0.020))
" d( w: l9 X7 m - (setq h6 (list -0.003 -0.004 -0.0045 -0.0055 -0.0065 -0.008 -0.0095 -0.011 -0.0125 -0.0145 -0.016 -0.018 -0.020)) ' ]1 a+ Y/ B& Z5 p S: E
- (setq g6 (list -0.005 -0.008 -0.0095 -0.0115 -0.0135 -0.017 -0.0195 -0.023 -0.0265 -0.0295 -0.033 -0.036 -0.0515)) 3 L( b; h7 }, V
/ f- K2 k1 x7 w9 [! A7 u! E4 P6 f- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值8 J- p% }+ L1 E' H
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值; U5 f1 V* Q- ^9 T" |- O v
- (setvar "osmode" 0) ; 关闭对象捕捉 5 F3 l* U# s- p
- (setvar "cmdecho" 0) ; 关闭命令的回显/ W1 ^, o4 R3 S8 M) v5 V
6 q( q& e0 j1 `$ o) i- (setq innerdiafactor 1.5) ; 设置内径系数/ g5 v0 i% l2 |8 m- K+ {
- (initget 7) ; radmid 必须非零、非空、非负
0 m3 {1 Q. l) L' R% M: s6 Q4 ~! A - (setq radmid (getdist "
" P- M% A) J# v/ `5 `$ B" ?2 R - 公制外径: "))
! i4 D# H4 ~( c" b - (initget 7) ; threadpitch 必须非零、非空、非负
7 b2 @* ~$ U& d - (setq threadpitch (getreal "
- H0 Y J( v: a& W - 螺距: "))( L0 I- W. ?) s; e$ Q3 h$ m
- (initget 1) ; ptStart 必须非空
" q3 n' ], F+ T - (setq ptStart (getpoint "
: p4 L' X# h$ E - 起始点: "))
7 b) _5 o0 I" Z1 Z( a - (initget 3) ; threadlength 必须非零、非空、非负
3 X' p, J |, `% v - (setq threadlength (getdist "
6 P0 C% c/ ?5 I! M+ }) C% N - 螺纹总长(Y方向): "))* Z+ y% T, |& j2 v; C
- 0 l( r% \7 J- U7 w; F+ T" i
- ; 对公制外径添加公差
# Q8 C# N/ l$ B& S- ^5 U - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置 x* _5 \6 y8 q! Y' k ?2 A
- (if (<= radmid 6) (setq order 1)2 k: R6 C, u& g* P+ z2 ~
- (if (<= radmid 10) (setq order 2)0 n, V4 o7 \* I, @4 W3 d" V
- (if (<= radmid 18) (setq order 3)
: X, S% G# }5 }1 n. q - (if (<= radmid 30) (setq order 4)
3 z0 l/ }; Y$ Y1 W* W2 { - (if (<= radmid 50) (setq order 5)) ]5 r3 I# R9 O% ]% ]% `* {# M
- (if (<= radmid 80) (setq order 6)+ z: E) }" ]' q; p5 _# H
- (if (<= radmid 120) (setq order 7)* m2 d2 t# ? e5 O8 M0 L
- (if (<= radmid 180) (setq order 8)( X/ n. r7 d3 U/ D7 Y5 F7 q
- (if (<= radmid 250) (setq order 9)/ @8 I. O+ l/ r# _
- (if (<= radmid 315) (setq order 10)
6 A- D8 V3 b( Y. I+ A/ M3 ] - (if (<= radmid 400) (setq order 11)
" H j: l2 e6 c0 c( b& _' { - (if (<= radmid 500) (setq order 12)0 o) X% S4 h/ D: i
- ))))))))))))): y7 L9 f5 ~+ J" B! l
- 1 A2 T( d. I3 W; R( I" W$ r
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带9 n4 F5 M, L" D- Z
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
" j! a( H: Z$ k2 h+ N - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
3 S& Q5 ?! a& x" L5 X% T - )))$ b% F% a# F4 T4 u& U
- % I4 s+ I3 w, u6 ]. K
- (setq h (* 0.866025 threadpitch)) ; 计算齿高0 [9 _, q. Y- t
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
* Y- w& H9 b; k" U* |. R: q5 S - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
* T" `( R/ `9 F9 }8 N - (setq threadangle (+ 30 0)) ; 计算齿顶角) b" n7 G" Q y1 ~8 ?. U/ c
: u7 A# }" J9 K( s, E' r- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数8 v5 m% A- n4 @9 m) F8 T% w
- 2 {5 b- J9 \6 Z% P
- (princ "
9 q2 ]6 {/ r2 K - 三维螺纹创建完成")/ x* h4 s- C9 B0 y' m7 I
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值$ A6 W* G$ ?8 z x
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
8 M% X0 [) H3 u - (princ)/ e1 | a: ^2 _& I1 B/ x
- )& t6 e. P% S4 s5 `2 L6 N
- P1 d$ h& S) l% c2 n \- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
$ v8 E7 d# f* l( m @ - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
3 {) ~8 j( [5 \& _: |( ~' W
6 X! W' W* \; a- ;(command "undo" "begin") ; 开始undo步骤
* b/ k7 x; q$ e7 |! H( R
g! W O7 Z. \6 v# P6 N- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3): g3 U) x: k" G: s- V
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
8 L" ^9 n3 M! W - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
8 m; L6 d P6 R% E* [1 D& m$ e - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
* K) P( J% I' g! K. ?& T( b - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))4 o# Y4 W! X7 o: }: q
- ang (angle pttmp1 pttmp3)
) B) O6 [; X; W - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)8 _7 `4 O, d. }( I: F8 q' e9 W }" k
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))7 k: i! g9 N8 v
- pt3a (polar pt1a ang radouter)
; M% n0 X/ `4 Z7 D l! l. Z - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
4 V2 x6 G5 ?5 G4 V# o( L, u G7 g - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))2 X! ^$ n) \8 Z3 w+ E
- pt3b (polar pt1b ang radouter)
& g7 o- i( h3 w: D* i. s) T6 J - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1): c$ ?4 Y0 C" ~
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)+ e2 F; a6 z4 T7 u. g" A+ [
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
9 @" w' d+ \! L. M - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)2 G1 t( w n% j9 V& k) Y6 w. ]! a
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
3 A7 o; G5 \/ b+ f - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil), f% a. S6 z% a, ?
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
9 `( | z& w7 Z - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
- `' l t; t0 |) s* \6 t2 G - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
- O/ C; ^" j* w4 ]9 u# x' R - )5 Z/ Z' ~* l0 E, l# A9 @8 _) X1 ?
* g+ n1 Z2 E0 m/ d- ;-------------------------------------------------------------------
$ P2 K1 u2 d* m9 T v! E- Q - ; 绘制两个倒置的并偏移1/2螺距的圆锥
+ Q5 Q* w* a' Y0 P) S4 G7 J - ; 这两个圆锥都以中剖面剖分
1 Z+ ?" j" R8 Y - ; 进行并集运算
d% ^7 N& t3 U2 j# \. B" s - ;-------------------------------------------------------------------& f7 H+ R3 i( u' I1 d
5 M: u: C3 |( G1 W- e( m- (SETQ startcone "order")
0 z/ i6 _. o5 e, S! D5 }7 N - (SETQ endcone "Y")
9 K, L" G9 c& \/ D& T - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)
, C/ U! J6 L( u. h7 E) l7 C) M
8 G3 e2 }; h) L3 o7 E7 ?- (princ "8 X8 ~& U: J' x
- 正在绘制三维螺纹，请等待")
- x3 O j U, x1 J: N0 K) y3 E - (command "pline" pttmp1 pttmp5 pttmp6 "c")1 w. x$ i0 q4 W3 t
- (command "revolve" "l" "" pttmp5 pttmp6 "")
9 U# ?! z0 [, o3 Y - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
3 O/ X6 S I7 d& A. D - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)1 U2 s9 H) |! B2 U2 k5 W, \
- (setq tstmp (ssadd (entlast)))
, D! D& C/ L; J$ @# z - (command "pline" pttmp3 pttmp9 pttmp10 "c")
- X$ m3 F1 o4 [( U0 y1 \: [ - (command "revolve" "l" "" pttmp9 pttmp10 "")6 N. A0 d( `2 e* o3 e
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
- e( A6 l) [% h x - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3), O* [4 Q9 q4 g1 H+ [ D
- (setq tstmp (ssadd (entlast) tstmp))
$ d! O4 r1 m- R2 d* G' p - (command "union" tstmp "")8 Y1 }$ ~/ G' d9 _) Z! E
, U; y$ Q: G$ Q* t- ;-------------------------------------------------------------------
+ A# A# i& _# U5 _! {2 D - ; 上面的实体被剖切成两份，然后进行镜像以获得螺旋线的螺旋- R/ C+ H* q/ f& Q+ Q3 l& W; b6 {
- ; 单线的高度实际上等于两倍螺距，但是超出或者是在内部或者是/ M; W9 P2 R& u2 w
- ; 在最后一步被切除
; |; P# h L5 s - ;-------------------------------------------------------------------
# @4 @6 s- q1 C1 E; D - & A. O, \ q6 E
- (command "slice" tstmp "" "xy" ptStart "b")1 s- c3 s1 f5 r- Q7 k- }
- (setq tstmp (ssadd (entlast) tstmp)), y( s2 |2 e+ R# |7 }
- (command "mirror" "l" "" pttmp1 "@10<0" "y")# X& W$ f" C- Y$ W% j
- (command "union" tstmp "")& D$ ?1 |+ S2 r8 _2 N
! p& n V; L4 N8 x- ;-------------------------------------------------------------------
- A/ `# T* `8 t, X" G* R - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）
7 X( g1 [5 g+ }7 {2 y - ; 得到的实体再切除到指定的螺旋高度
! l6 b$ q r( u M0 }! z - ;-------------------------------------------------------------------9 A1 K) v0 h; s' c' }/ E m
- ( T& C7 p7 `2 v
- (setq e (entlast))3 h1 x7 l3 s; E. E& ?& Z
- (command "array" tstmp "" "r" ttal 1 threadpitch)1 ^7 D" e6 I1 ~; `
- (repeat (1- ttal)8 Q% ?" M3 e) @% ?. a
- (setq e (entnext e)0 ^+ y2 v3 y3 f
- tstmp (ssadd e tstmp)
7 P* \& p( C; K s# y - )/ V) J( _' F2 g% I9 J9 q" D" T
- )
- I# h+ p; {3 |$ ^ - (command "union" tstmp "")
$ o' `. G+ V$ i) t* @7 q- C$ ? - ! _8 R4 G1 o( P8 y3 q
- ; 若开始创建45度的圆锥 k: E+ S# S- Q4 ~. Z ?
- (if (/= startcone "order")/ u B/ e' F, x; ^9 M, j- e
- (progn (setq e (entlast))& @- f2 |' p% x e
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
& Z+ Z4 D' |5 y9 V. ~ - (command "union" "l" e "")
9 \( S5 M4 i: b& o: I - )6 [* a3 o' Z& L9 F4 P
- )) t& W) }& P8 N4 k6 S6 u; D/ ~0 Z) G
- " { O# E% \* D0 x2 `
- (command "slice" "l" "" "zx" pttmp11 pttmp12)5 m* h4 O5 P1 `$ Q, [; s) ~" W
- (command "slice" "l" "" "zx" pttmp12 pttmp11)
5 e) K+ k: q( c- B6 b9 @ - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) - a+ p7 \& }) i/ V+ V
- 5 \% E6 j! }) B8 g3 E
- ; 创建最小直径的圆柱体，然后与螺旋作交集( ]2 k' }9 X+ A7 W# V6 W% ~$ v" s
- (setq e (entlast)): v9 n# B" A! a" ?2 p( ~
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))( l1 b0 S% a# p. c6 ~% f
- (command "union" "l" e "")
* Y7 A1 E* V$ ?# N/ l4 J# F - (setq tstmp (entlast))
! j. S% x2 T. i U \2 K# |( C
5 D2 B2 d, x( \' g6 s9 X) n- ; 创建中空的圆柱体, K" ?8 B3 R, k/ k0 x8 d
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
+ ^* b* U1 J2 [8 R" p' i4 N - (setq e (entlast))
/ O! J; _2 _0 o; b( y4 n - 2 O. _+ Z8 P/ z+ M: ~% J* g- G% e8 m
- ; 若最后创建45度的圆锥7 ]) _. C9 P/ ~
- (if (/= endcone "order")
' A2 T* z. {7 W6 n V - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) ; Z# S. I' R6 t" R! k
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) ! |5 S' L2 i8 b& x
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
: @5 {$ _# o- ? - (command "union" "l" e "") 9 X* q. ]! c/ W* Y. x" D
- (setq e (entlast))3 n8 t& X" B8 W/ [
- )- o6 T" H* L5 j" f6 T
- )! e0 `/ m- ~( ~, D3 c Q
- 8 u% J% I: N: J/ Z: h- m/ t
- ; 从大圆柱中减去小直径圆柱% u/ D) I. R# H# g& _5 ]
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))+ e- P' a% t, q7 Z" {% Y
- (command "subtract" "l" "" e "")& ?% i6 G4 `8 @: K$ T- a
- (setq e (entlast))
- e1 m Z2 v. w3 Z
* C! N0 |. _" i# A( X* g- ; 从螺旋中减去圆柱
6 u/ `' d# u, a5 w: p I2 n - (command "subtract" tstmp "" e "")$ D: A/ F* m1 }
$ {4 f( f8 M1 E6 j. w: p E- ; 如果螺旋长度为负然后镜像
G, X3 a, _! c - (setq e (entlast))
. X. r( k6 I" H! b7 \% G. s5 r - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
2 M( w) s3 j# N/ z, t/ o6 S
' M. I; G- v, ~- (command "zoom" "p")7 h4 t0 M8 t+ d1 X: L7 ?; i# j, E
- ; (command "undo" "end") ; 结束undo步骤( X' |3 A) f' y
- )
. R: G4 U3 i# ^$ i
* H% ^# n( T2 z' A- C- ;;;---------------------------------------------------------------------------------------------------------------------;- x. _& O$ A' z* O% |9 E$ I+ e1 F
- (arxload "geom3d" nil)8 o4 N7 Z( W- d
- (princ "% g7 F, |5 w6 ?8 f1 l
- 3DThread 已加载。 ") c. {6 V9 l' I& F1 k! B- @
- (princ)
; o" r+ v% W9 [1 o( U- @0 \; l
$ H" |8 I7 L* }2 v4 { F" }- O$ A
' f/ i* j1 G3 ^/ ^
三、弹簧源程序 K) K# E7 }& J* J
- (defun errMsg (s) ; 当命令执行时出现错误
" d2 j4 _ }7 }, a$ [ - ; 例如用户按下了CTRL + C9 O+ X4 I; i2 t4 K3 i
- (if (/= s "Function cancelled")
! N6 Y/ ~0 `% N( L5 d - (princ (strcat "/ Z5 W0 C, i3 r
- Error: " s))- D& ~ T( k. J- Z, B; y
- )
0 T5 J0 o# S- |2 w7 _1 n - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
0 b4 N" |" K. G* Q - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值! w& ]) H) d# ]! Z* T6 X, e
- (setq *error* olderror) ; 恢复旧的错误处理7 e0 C4 G' {. Z u
- (princ)8 b5 S5 B( ~' r+ i
- )- C' L% J0 h. C5 ~, B) T5 O
- + [4 J: s. G; g* ~ [0 v% l
- (defun spring (nRepeat cntPoint bhfac lr strad bvfac/ j: |/ ^. r& d+ R9 E$ h' ?
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)( N' R: \1 k- U. p. Q6 {
- 3 C7 [* \- X, d9 N
- (setvar "blipmode" 0) ; 关闭 blipmode % X2 t4 j+ I' Y8 o5 {3 K
- (setvar "cmdecho" 0) ; 关闭 cmdecho
, u5 {7 D( ^& @2 k - (setq Pi2 (* 3.14159265 2))& ~( q# `. e/ H' ? X
- (setq aGrw (/ Pi2 lr))
" c' X3 N" B6 V( O - (setq dhGrw (/ bhfac lr))$ @. z; T6 M2 J1 D
- (if bvfac (setq dvGrw (/ bvfac lr)))! x6 t$ a3 }) l: m
- (setq angle 0.0)
# a% h- \$ _1 Q3 \+ d( X - (if bvfac
5 Q% W6 Z0 v! ?% |* l - (setq distnc strad dv 0.0)
0 s3 [% _' o! a) ^ - (setq distnc 0.0)7 E% {1 l6 B4 ?: e: ]; p
- ): F9 V" \, s# K2 P
- (if bvfac ' O' V$ c0 R8 e/ b! h
- (command "3dpoly") ; 开始绘制弹簧
% l, [9 |4 b: U) g/ N3 l - (command "pline" cntPoint) ; 从基点开始绘制弹簧, V" b2 h ]5 x
- )
" r9 y* W s1 R) t* w; u& v - (repeat nRepeat 0 p# J( e. S% p2 G6 }
- (repeat lr : U# C9 u- Q$ G+ `+ ]
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))
8 H, X0 ?1 z' O3 \3 X' K( i# Y - (setq distnc (+ distnc dhGrw))
: K) T& T( q+ B! k4 P - )$ d B& \- l* X1 |& X1 \) o
- )
+ V+ M! x* G( {$ e: W6 F2 N$ w+ Z" [: q; s - (if bvfac+ k: Q X) x- {" c' W" g% e
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
2 C4 m; [$ a- q H8 F - dv (+ dv dvGrw)
# W2 g; r# g" B% m - )
( H' }( x. P$ B - ); A7 w ]0 i! R" ]# W+ e+ _
- (command tp) ; 继续输入下一点! Z0 [; f3 _! F9 |
- )9 @3 a5 E- T- ~' S% L, p
- ) & o* Q* |. w: v
- (command "") ; 输入结束
5 ^/ Y. n% Q" U0 M V6 I; n - (princ)
( i) c0 m5 z! O& Z - ) 5 L q' P3 h; ]& @. i3 g- t5 G
- 4 Z; D/ Z e! Q1 }$ `" H
- ;;;1 V1 s7 x" q/ h/ _. b5 ~
- ;;; 生成三维弹簧函数调用接口: C! O# E4 O2 l6 Z* @
- ;;;, Y6 s6 a& ?; _* a
9 I4 H9 d. A4 A1 U- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) * f+ H& h9 k; s" u* G
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复# k& a# d# }4 C- t. n- A) b0 n
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
, u' r* I/ s, v& Z6 r( q# J - (setvar "cmdecho" 0) ; 关闭 cmdecho
8 p3 ^7 r* k8 w# Y+ ~ - (initget 1) ; cntPt 必须非空
2 A A3 V2 Z6 ~( p - (setq cntPt (getpoint "/ I* m3 t8 \" F7 N
- 请输入底部中心点: "))
# B0 }! z9 _" [; _1 p - (initget 7) ; RottCnt 必须非零、非空,不可忽略0 ^8 Q6 L( @( ?2 W2 {9 h
- (setq RottCnt (getint "! w' F; D) u C* r6 r
- 旋转的圈数: "))% h% e9 L- a$ T8 b5 D4 ]& w# `. ^
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略# w: @, M' b, f: f n8 Q
- (setq bgnRdtn (getdist cntPt "
7 ?: Z( _5 s& h5 Y0 e0 P! N- n - 起始半径: "))' U# g0 _0 N7 ?5 T7 b& d T* S
- (initget 1) ; cf 必须非零、非空
& j7 r( G; ^" g) e! | - (setq horiGrw (getdist "
: B# g2 O8 _5 k* Z% n; G$ U - 每一圈的水平增长距离: "))
, u1 I/ j* i& i+ r0 q3 y - (initget 3) ; cf 必须非零、非空
' a1 M; t4 N& N7 V" P/ j - (setq vertGrw (getdist "
, {- S4 L0 W; }% w2 G- b/ A0 k - 每一圈的垂直增长距离: "))
$ p6 B" V9 \6 N - (initget 6) ; ptCntPerCircle 必须非零、不可忽略" d+ X3 b+ h$ U# V% ]7 A
- (setq ptCntPerCircle (getint "
/ |9 V7 A0 v; f3 o1 n6 A - 每一圈的插值点数<35>: ")) x6 k* u9 k* u6 k- u. o8 a
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
@9 H: e6 B9 B6 d0 R5 { - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
5 p* `% i3 ~; b2 A0 r1 _+ G - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
- \3 G, R% y/ N9 t! I# X - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
; L4 o% {+ f$ z) g - (setq *error* olderror) ; Restore old *error* handler3 D4 @" @ ?# E; t
- (princ)" O2 ], W/ [) m6 |- P, A
- . `* c! p4 n2 ?7 b. ?+ S
- )
+ ^2 w; o$ V' ~& W7 {1 X! b
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
