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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% }+ A' T2 a. E3 g. V, |$ N1 o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：* E$ T. j# I7 V: L t, _4 c: H/ f
一、齿轮轮齿渐开渐开线" g9 W- g2 z6 T7 T+ L8 F6 J
- 2 v1 o l# f4 K+ k2 O8 a6 E0 U
- (defun c:gear(/)1 ~- h! I2 V2 M6 ]% e
- (# g" E- r- ~/ M& [0 m8 ?6 l0 h1 ]9 P
- setq5 b$ Q& O. \/ |3 ?( i' o
- p0 (getpoint"输入齿轮中心p0: ")
, _/ Z0 T* K5 E2 l# g - m (getreal"输入齿轮模数M: ")
) D4 ]4 f4 _, y a. w8 U: L - z (getint"输入齿轮齿数Z: ")
9 O4 I) m( s) q. B0 n - ha 1
& X, L/ N& L- F$ m0 E - c 0.25
4 ]1 n6 W- q2 ^4 ~5 `6 [" P - a (/ pi 9)5 \4 h& M, |! F# e
- ra(/ (* (+ z (+ ha ha)) m) 2)
2 Z. l8 H* v' f0 k- t( t - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
6 B. I# U* x: A" b - r(/ ( * m z) 2)3 h- |3 J* h& F
- rb ( * r (cos a))
$ N9 ^) m0 X' D1 O9 U# a - ri rb
* e8 ~, R; N! \8 V8 _ - ang 0' n; U+ O, g. q. t( T8 O1 a
- g (polar p0 ang rb)
* S4 A/ w9 Z( j7 r - )1 ~8 |9 N8 j, Z
- (command "circle" p0 ra)
$ G. t( S2 S3 K5 M - (command "circle" p0 rf)3 A: x1 S7 |1 b) l
- (command "circle" p0 r)
1 \! W; x; e8 q' t - (command "line" g)
( r5 v% O. w/ @- T - 4 @. T8 v5 D& ^5 [4 w
- (while (< ri ra)
$ g. {6 [) x5 g - (setq
# {' {0 q( V! I - ang ( + ang(/ pi 360))- A0 ~1 W/ I. ~+ D! C
- ri ( / rb (cos ang))/ L, | \& d, ^: Q" @
- cta ( - (/ (sin ang) (cos ang)) ang)
a' v- Z! y5 r' O2 W" \0 m) G& K - g(polar p0 cta ri)
$ U* I3 N- w2 c; D/ }. _/ K4 l1 x) K - )" F0 }# @) ~/ O! w* s. {5 x5 }, x
- & P: M6 y( u9 K8 i8 o
- (command g)
) \" C( W4 u& {2 N% n& } - ). Q; r) x J5 Z6 ^( B `) @
- (command )
+ A$ n: F G1 m$ b - )
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( I$ ]8 e& ? `! I4 H' g' m
1 u) e' ]# A6 n% }% E7 v" s二、螺旋源程序
J: ^3 G% R: o4 u, J$ v7 Q I! f+ ]! B! J# G8 k( O
- (defun errMsg (s)$ b+ Y+ Z' i. k3 w' U6 Z
- (if (/= s "function cancelled") (princ (strcat "
# [ v: a; c+ k$ D* p `. N* E - Error: " s)))
' z% y0 l- r3 [6 U: N - ; 当命令执行时出现错误9 _$ F' R F; _
- (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
& |( C& V5 z) O7 _ - (setvar "osmode" osmold)
9 B6 s4 L/ X6 j3 F0 L+ C* V3 s+ x - (setq *error* olderr) ; 恢复旧的错误处理* t+ d/ ~' z( _. Y
- (princ)
9 l% k& F2 k4 u - )4 I" n$ I0 C& a3 W7 I1 B4 D! p
- ( ?4 H; F+ a+ k
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle 8 T6 m) j7 \, @4 N" o9 U
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
& p z6 m( J q6 v - ;-------------------------------------------------------------------
( o. S% s1 M5 ] - ; 获取公制外径大小、螺距总长- u$ V/ s" f) F1 _8 @3 B- T9 o
- ; 然后计算一系列几何点; p3 v3 E: c- M B
- ; 并且关闭对象捕捉、命令回显- U/ M9 d& w8 x( C
- ;-------------------------------------------------------------------7 S! l3 K9 \+ ]. J
- (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)) # B: X6 f8 Q- ^% P
- (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)) 3 u( O; M8 D" S4 o* T
- (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))
4 u& D9 r5 @6 z/ ? - (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))
7 z/ N, t: g$ 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))
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- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值% E; v4 L0 [3 _0 Q/ H
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值* ]# ~3 i8 p0 h2 N
- (setvar "osmode" 0) ; 关闭对象捕捉 9 v5 }7 d5 v( w
- (setvar "cmdecho" 0) ; 关闭命令的回显# o( e' e; a1 f' e7 ]
- o1 C1 @( \( h1 s/ I
- (setq innerdiafactor 1.5) ; 设置内径系数
" S( X, g2 [6 @4 A# V; \( A. J) M - (initget 7) ; radmid 必须非零、非空、非负/ u, g2 F- b4 \/ O
- (setq radmid (getdist "
* r' J) t9 C" K5 E) e& j - 公制外径: "))
0 B5 \0 T5 M s2 F% V - (initget 7) ; threadpitch 必须非零、非空、非负
/ u! i* u# K' R k' C0 R - (setq threadpitch (getreal "
7 @; Z7 E c- i - 螺距: "))" `; P3 a7 W7 h R6 z+ ^
- (initget 1) ; ptStart 必须非空
8 z w2 j) j0 \ X' g- k( x# n+ f - (setq ptStart (getpoint "
: u0 i5 z3 d+ Q$ B9 `% O. h - 起始点: "))! X+ W- d0 n6 b
- (initget 3) ; threadlength 必须非零、非空、非负
/ m( d" |0 A" | y; t0 R - (setq threadlength (getdist "7 a" e8 D7 Y1 Z' U5 D/ L1 X
- 螺纹总长(Y方向): "))2 }' w) J; g& I3 d& J( v
- * f6 y9 n$ j3 U
- ; 对公制外径添加公差
2 A) \$ r, v; q7 N, S2 n5 y - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置! A8 k) R. p6 a
- (if (<= radmid 6) (setq order 1)
) a8 k, c3 G( Q, e - (if (<= radmid 10) (setq order 2)
% _3 U' H8 G% \ - (if (<= radmid 18) (setq order 3). ^, P" ]' h* m. m7 U2 x( k# z& j
- (if (<= radmid 30) (setq order 4)
2 K7 J: i; i1 G9 j/ ^ - (if (<= radmid 50) (setq order 5)5 p% @ ^$ S& y* I: ~
- (if (<= radmid 80) (setq order 6)5 U! T4 _1 ^2 B* v- R5 U
- (if (<= radmid 120) (setq order 7)8 v! I) _! B; z/ L& N0 {' G7 \; A
- (if (<= radmid 180) (setq order 8)
" `( H: n* d; ^! I - (if (<= radmid 250) (setq order 9)
' D1 M3 } {8 T& M2 s$ d+ M - (if (<= radmid 315) (setq order 10). |5 S2 w$ Y4 D) E' @
- (if (<= radmid 400) (setq order 11)5 J' P3 p' S p6 i( K
- (if (<= radmid 500) (setq order 12)
- K6 }8 z- f3 @- c4 p3 {) o - )))))))))))))
: U7 F4 q* m1 y6 k% S5 x - " q/ Q, I- i; K" A( |0 @6 K
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带! l6 Y6 u$ u8 T; v# f$ T! @% j! j
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
) _( `, Z" O9 V5 W7 a1 J7 U" v( @' p - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H))), Y, ?1 }. V* v0 A+ x6 _
- )))
% ^0 p( p7 d" ]* G3 B9 o - 3 A; W, |; r% G4 S* L- I7 c* J3 C
- (setq h (* 0.866025 threadpitch)) ; 计算齿高- ]. |" v. F9 C0 q3 o# g2 B$ I
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
6 X1 c& s0 p+ Q: R* s9 c2 T - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径; T/ P7 U4 u- R: q2 B+ L
- (setq threadangle (+ 30 0)) ; 计算齿顶角; R* F# Z3 H3 C
- , D" s6 t# r: S' w; o `
- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数
) [) |1 m0 G: g9 n3 |! @& B( E# J; f
4 U6 p" g. {/ P2 u+ q9 C6 c# x- (princ "+ u* l- _( r" E# t2 Z8 N5 K1 w
- 三维螺纹创建完成")6 [( K4 a P6 A: j6 k
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值7 p5 ]% e' o x" H+ Y, Z
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值; M# |: }& E6 n
- (princ)
H2 K/ F8 Q" W* a" U' u - )
) Z+ c: B) k& N; f; L
- @" k0 ~( ^8 \/ G) ~- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
3 [/ ?+ a% T! Y6 F' P7 W* R - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)7 e9 O9 O$ s# E n9 v, u ^
- 1 f5 h8 v+ u4 z: h8 O; K
- ;(command "undo" "begin") ; 开始undo步骤
* g5 y6 o6 v# ~# I" f
% L( X4 T( R- F% e- B. K- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)+ |, L2 w- m# L( ? M
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
" W) d, u1 E4 U; | - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
: o m3 K1 X$ m - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
' Y' W! v. b9 F' N9 o3 A! S - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))/ Y1 b4 o2 \. E3 k
- ang (angle pttmp1 pttmp3)# d9 J& v7 b( y' y0 z& W8 ]' p( k
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch); r1 o9 Y. H! ]; G
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0)) F. m5 m1 e: {. G1 H( O/ R$ I8 V6 p
- pt3a (polar pt1a ang radouter)! G8 ~) [2 p8 g. l' c
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)% N, v9 y& D2 F
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0)): \7 e* w4 ?) e5 [5 a, I+ _' t! N
- pt3b (polar pt1b ang radouter)
9 I6 S- E, T: { - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
2 i* o7 n1 _+ F' p6 t% L" F - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
C& m c% ], M; \% D - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))5 O. g p( k3 T) m) q
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
6 Y0 o! G6 ^) @6 [* Q% J* } - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1): p/ Z7 w: J4 K2 |$ B& `2 p1 ]
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
% ?" m6 Q2 G) ~; o - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))4 R3 z% G, n2 O$ d0 s3 @7 ?" }
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch), Q3 W ?6 J6 @3 z; Q& m7 B
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
; E- K( k! w9 p" g- G - )
0 K% J% H6 z9 [+ _
* o8 N+ l9 f# V3 Q* [- r- ;-------------------------------------------------------------------* F3 y: r, T1 T: j8 j* |
- ; 绘制两个倒置的并偏移1/2螺距的圆锥
' V/ I" I/ `% G6 n9 s/ {& ? - ; 这两个圆锥都以中剖面剖分" @9 Q7 h9 Y* L1 ~2 r& B7 ~: ?8 M
- ; 进行并集运算
" w4 l9 D. r/ `; ^- [2 w1 G - ;-------------------------------------------------------------------2 M7 U" |$ g; @" l- O
- ; e. K5 }& o+ j# \) H
- (SETQ startcone "order")
7 l+ n: b% s0 ^+ p* d! |7 c& j - (SETQ endcone "Y")
% K5 X. j' J$ y - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)
9 V7 b8 c: L% ?+ D - & p2 |5 w; F$ t5 L+ p9 A
- (princ "7 B( ~. P& R/ @. n' u" v* [; V+ F
- 正在绘制三维螺纹，请等待")& ^, ?( P* S# s( a3 c9 c
- (command "pline" pttmp1 pttmp5 pttmp6 "c")
0 }8 a8 ?# ]( C& c9 X, C - (command "revolve" "l" "" pttmp5 pttmp6 ""), [1 Z0 f; @' i, d
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
6 B* ^% g* F; W" a) O) H - (command "slice" "l" "" pt1a pt3a pt1az pttmp3), N: L7 v7 L. u" Y. Y* N/ E5 V- x ~
- (setq tstmp (ssadd (entlast)))1 W' M0 F: L2 V. \" L8 q
- (command "pline" pttmp3 pttmp9 pttmp10 "c")
) w' s1 ~ B3 A3 \5 T8 Z! ^ - (command "revolve" "l" "" pttmp9 pttmp10 "")
9 q+ I* m v( o3 `9 }6 z8 q7 l - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
t% Q# l3 o, Z - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
) L" c" [: L; e* h9 K8 s - (setq tstmp (ssadd (entlast) tstmp))
" d- }" b% B2 S: i& Z9 {/ J - (command "union" tstmp "")% ?: D% q: q8 J
- 1 K9 |5 j1 l& l* @7 Q
- ;-------------------------------------------------------------------
5 r" }8 c; y/ z2 c9 z - ; 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
- @: Y K+ n( b% {- N3 @4 T& U I - ; 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
# `6 t) i8 g# S0 I' U( F1 @# t - ; 在最后一步被切除
1 H: _5 g7 a, M/ d) H5 K/ f - ;-------------------------------------------------------------------# [8 [/ U: }" \ F) z
- , i8 q7 E. s) i* D0 u4 q8 @
- (command "slice" tstmp "" "xy" ptStart "b")( ?% x; H! F" |: d
- (setq tstmp (ssadd (entlast) tstmp))" q' `# b; S: v! R
- (command "mirror" "l" "" pttmp1 "@10<0" "y")
, h: `% H' W) o; Q2 ? - (command "union" tstmp "")
/ B6 [2 G" I r+ n3 e+ C0 d - 2 e- i% X5 P% l& o3 g7 b
- ;-------------------------------------------------------------------: Z* d: W9 C9 K/ G: c
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）3 R4 r* g' A9 O* U0 g3 O+ J
- ; 得到的实体再切除到指定的螺旋高度* z& j; t; z u8 D- S1 O" F
- ;-------------------------------------------------------------------
/ a' f, i# f# j - & R ~0 d1 P' P: x; l
- (setq e (entlast))
8 O3 w; h: |/ c2 L5 n, t+ w+ c$ k - (command "array" tstmp "" "r" ttal 1 threadpitch)
; p5 ]2 l9 E* C M# I1 b) R9 B - (repeat (1- ttal)
$ X, i9 x0 X$ d* K( L7 N" G - (setq e (entnext e)
) X0 C. W/ s. b3 {# C% ?0 f* V - tstmp (ssadd e tstmp)
" X9 \/ X8 `- p0 P( z - )
" m0 X+ @$ U. k, d7 z& K - )% d1 g3 L- ]0 r2 @: g) p: S
- (command "union" tstmp "")+ F7 ]' |& Y, |7 E
- 1 A6 l" P% `1 E' c2 Z. |
- ; 若开始创建45度的圆锥
7 ]1 x7 d% k$ ^4 z: i - (if (/= startcone "order") B# `* j* a5 y9 `
- (progn (setq e (entlast)); U0 V9 v4 w0 Q7 }: d) \9 w
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))! X8 a7 D% ]! G! [1 N! I
- (command "union" "l" e "")
, R" O" q7 I, _- F8 t - )3 T' U: N7 Y5 {: Z5 M% C
- )4 q) O, i9 U, m5 Q: Q2 F! T
3 [2 Z! W$ p+ o- (command "slice" "l" "" "zx" pttmp11 pttmp12)0 G1 r+ [: y' y7 ]; _4 N Q3 S
- (command "slice" "l" "" "zx" pttmp12 pttmp11)
7 d' C7 a" ^# M1 l3 Z+ n: Y% {7 Y - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart)))
O, i# a2 f0 u - # p+ b& _8 T. x$ L$ j; v3 W
- ; 创建最小直径的圆柱体，然后与螺旋作交集
! M7 {- C* k( T. g& | - (setq e (entlast))2 e3 u' Y: h0 V6 E* E8 i
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))/ D r& x- J1 r' [
- (command "union" "l" e "")
3 y! E$ o+ \* ?$ S ` ~0 V9 S - (setq tstmp (entlast))
; ^! @; \, ^) [" i - & w6 B% q7 }! _
- ; 创建中空的圆柱体' b7 ?; s+ x8 V, U* k' y4 I
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia# T2 L$ H9 M- j; d
- (setq e (entlast))
7 e( g3 X' Z8 V$ y! R3 b6 c
2 l7 v; K( n) u: C- ; 若最后创建45度的圆锥
$ i! {( R6 P* ~3 T, x# K - (if (/= endcone "order")
- k( i$ O, Q* G+ G - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart)))
0 L! a' C8 F. @1 u& v3 f8 c - (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
* O ?: W& Z) o, A# o - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))' V4 B9 p# a2 U
- (command "union" "l" e "") 8 Y' r0 }$ m( A
- (setq e (entlast))1 i6 L! y- w, `$ N1 x8 H2 `
- )4 M: j) i& i7 N8 }
- )
( B2 V; {# i1 ^' ^$ W5 R - ) j9 O k' D0 |- o3 Y- }# g
- ; 从大圆柱中减去小直径圆柱
& d, f6 Z5 r, O a8 x - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
9 i: O' r+ A5 c2 ]; q$ ~ - (command "subtract" "l" "" e "")+ a8 Q m P3 ~( I+ y
- (setq e (entlast))' l; h( [ p: ?" _7 m, b1 D
* g$ ]1 D; \+ l9 E9 k- ; 从螺旋中减去圆柱" A- m( o/ u4 ]
- (command "subtract" tstmp "" e "")
( T+ Z+ `0 D0 I" E6 q9 w
8 S% C) }9 ~ a! z- ; 如果螺旋长度为负然后镜像$ F4 ~' |6 E. {. g5 z
- (setq e (entlast))) i) R* }0 ^7 H3 d# U! a
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
5 Y; t+ B6 G$ D$ `% h% X5 {( {8 W
" C# ?' U5 R! O" s( l+ c+ Y- (command "zoom" "p")
" C- Y: ]/ k! U9 ^, J( ] - ; (command "undo" "end") ; 结束undo步骤
( u9 Y. F& m& ^, w+ n2 Z& m - )( m' @- Y6 n4 Z! t
# }5 a9 v+ b8 X7 j# Y- ;;;---------------------------------------------------------------------------------------------------------------------;6 M: {' l! x1 k( B" p8 z! O
- (arxload "geom3d" nil)
: J% l8 v$ k+ q5 G* a: ] - (princ "
. Q! y L; A: g) }. ^4 | - 3DThread 已加载。 ")
5 {. a' l8 \' j - (princ). X4 q( O1 m6 @ b: V3 q1 e9 g* r% r
0 k# b+ I) y3 O6 [( [# b
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三、弹簧源程序
- ?/ G; X& [; m- (defun errMsg (s) ; 当命令执行时出现错误
. Z( g1 T3 R- l9 K - ; 例如用户按下了CTRL + C: l6 {. B! V ]
- (if (/= s "Function cancelled")/ q% g3 k% X( G2 F( v$ [
- (princ (strcat ": x1 c+ j/ f/ X
- Error: " s))
! W" J( [8 B4 C2 g% O5 K - )/ n" Q9 x) p- {" g. c9 N2 B
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值- V$ d9 V r' _$ D* `* Y
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值4 O T% S6 M3 u d- N
- (setq *error* olderror) ; 恢复旧的错误处理
% ]* y& b1 E" F) V - (princ)
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$ z3 ]# p V& L- (defun spring (nRepeat cntPoint bhfac lr strad bvfac7 I7 x6 c* t% a' e
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
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8 Z# n/ H3 h7 E- (setvar "blipmode" 0) ; 关闭 blipmode
" G0 A% b l% \8 R/ f - (setvar "cmdecho" 0) ; 关闭 cmdecho2 A5 l( D2 z* h+ z# j( U
- (setq Pi2 (* 3.14159265 2))
' g- I7 x6 i; f; `# ] - (setq aGrw (/ Pi2 lr))# _1 ]" g" z( l6 j# I4 X9 p V3 K
- (setq dhGrw (/ bhfac lr))
1 p" `" Z' J! B; ~& u4 i+ M - (if bvfac (setq dvGrw (/ bvfac lr)))6 Y' F0 T/ K/ n* I0 ?3 V1 m0 c
- (setq angle 0.0)* I9 n/ S2 u) [) C# R4 H7 p- ^
- (if bvfac
& a3 Y# c; _8 j3 k6 Y' g - (setq distnc strad dv 0.0)+ q. i) C: T% D. z. S/ w
- (setq distnc 0.0)
' h& M4 V5 y. w6 e% z - )
' V6 v! P" q. s. } \ - (if bvfac + q! C& |# l, W9 ?3 P: _
- (command "3dpoly") ; 开始绘制弹簧9 c z, M2 J8 O0 Z" E( U4 P( Z
- (command "pline" cntPoint) ; 从基点开始绘制弹簧" ?$ O" k( F1 R- R" _
- )
9 P+ N. w& |0 q$ I7 { - (repeat nRepeat
/ H; Z* c1 W5 Y - (repeat lr
7 Q H/ O1 Q Q: A - (setq tp (polar cntPoint (setq angle (+ angle aGrw))& ]$ l j1 t$ u; Y
- (setq distnc (+ distnc dhGrw))
' e' X( q+ o. m - )3 ~/ D4 ]9 E( a- [( z- F5 o! g3 c- `
- )
& ~. ?9 E' X \" e - (if bvfac
9 W8 W! F% U4 R" Y% l+ ?4 C - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))" i: ]8 s# C5 M+ m& q) f& C/ ?) w
- dv (+ dv dvGrw)
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- )% ]" L6 @& N* @
- (command tp) ; 继续输入下一点
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- (command "") ; 输入结束8 Z Z+ S9 |8 P
- (princ)
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- ;;;7 h: C- J$ O5 G3 x3 P0 _- Y
- ;;; 生成三维弹簧函数调用接口& ?+ y6 o" T. D9 E5 J; R
- ;;;/ G, r- Y0 i! H- G- U7 @7 J! y
! [8 _5 g, R3 \5 L- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) 9 S/ j7 u' ?& Y7 j8 d( i7 Y
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
. T( @1 z& s, H9 S - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复0 V0 `1 z8 m5 Q' ?. y# N9 D U
- (setvar "cmdecho" 0) ; 关闭 cmdecho
+ i# v5 e. E3 u' z* z" k - (initget 1) ; cntPt 必须非空
2 S6 ]9 x( N- E$ ]2 j - (setq cntPt (getpoint "9 y7 f2 W( R% A6 t# @* f' K- R$ v5 ^
- 请输入底部中心点: "))
; X) s4 X" c. ~/ t( t - (initget 7) ; RottCnt 必须非零、非空,不可忽略
! q7 w0 J, o* `3 k- \& S- q - (setq RottCnt (getint "1 [7 j7 Y4 `5 n2 j# q
- 旋转的圈数: "))' N1 H) m# P, v2 _
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略. V3 ~* X" |# u8 i* Q
- (setq bgnRdtn (getdist cntPt "
4 `3 u' o& d' h, q* Y1 S$ B" J2 j - 起始半径: "))3 p# h: ~5 \" \1 G) g# Y
- (initget 1) ; cf 必须非零、非空9 S9 V% }6 y; }0 ]1 g, c' z4 y
- (setq horiGrw (getdist "$ v: `. R6 b! Z& I
- 每一圈的水平增长距离: "))7 q/ |* |& D8 L8 e. u4 c
- (initget 3) ; cf 必须非零、非空
/ z6 Y2 _* I0 Q - (setq vertGrw (getdist "
% v0 f% {! r+ x0 A - 每一圈的垂直增长距离: ")) ^ M: z6 Z2 M7 E+ e- ]1 R
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略7 g3 h$ q4 Y1 z, d- D. L
- (setq ptCntPerCircle (getint "
8 @ ?) j& Q) X9 p, G - 每一圈的插值点数<35>: "))0 Z. |& `, D( }. w/ \* c" t7 W
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
6 q; s+ T' v" G - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
' w7 A; P( B! W# W3 R% [ - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值1 ?# Z$ p$ Y+ k; g" K6 w1 U* N7 K
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值4 A6 {4 v; j5 R" }( N
- (setq *error* olderror) ; Restore old *error* handler. u& d: ?4 {, u9 c- G9 s
- (princ)- G$ `" i$ ^, G! N7 Q8 R
- $ m; |/ l' N: P) D4 t
- )
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
