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：! e! s( r# \ E6 L$ v( V d6 n2 y
一、齿轮轮齿渐开渐开线
% \* e9 u+ l+ V7 `& T, A$ b \
$ _7 L8 G6 S- s8 ]5 W3 w: q2 p- (defun c:gear(/)
( K1 o0 p4 e: x! ? - (
5 {! D8 W2 D; X+ q! Z9 o! { - setq
0 S( L+ }$ G* m3 w4 Y - p0 (getpoint"输入齿轮中心p0: ")
6 b- J( I- }6 A" I7 r: N - m (getreal"输入齿轮模数M: ")
3 {0 S# m+ c- M - z (getint"输入齿轮齿数Z: ")
$ ]* n% Z9 I- P! `, g n - ha 1
; |: Q) g0 F& G. P - c 0.25
3 ]2 @+ D+ r+ { - a (/ pi 9)
& F* |6 G; p% g. f - ra(/ (* (+ z (+ ha ha)) m) 2)
# d5 P+ G1 N y7 o+ [0 K8 H/ i - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
; {% s0 X) B- `3 k - r(/ ( * m z) 2)
. c. J& `! x& f - rb ( * r (cos a))
# w" }! | P" d2 K- b" X% P/ `, | - ri rb: j7 G$ ~1 b* a! X) A
- ang 0 \6 v0 S8 t6 a) O" @8 H
- g (polar p0 ang rb)
! G8 z7 O; p `# n1 t% a - )
1 i( Z B3 w$ x; b$ l) ?, Z$ @ - (command "circle" p0 ra)3 e! t3 x6 [, _6 G
- (command "circle" p0 rf), O9 ]5 r/ q5 h1 ^+ b. G. \ G1 J/ |
- (command "circle" p0 r): k" f/ \7 k0 X4 M
- (command "line" g)
/ n( ~9 X, ?0 W' B/ r; v* ]3 g/ X( R -
! J2 w/ z! F; @9 |7 n: K9 y% L( _ - (while (< ri ra)
1 t! n& L1 P$ V! |2 y* J. ] - (setq7 W9 {* y7 e& n9 G
- ang ( + ang(/ pi 360))7 K- ?' G8 E9 o" }4 c
- ri ( / rb (cos ang))1 i4 N* ], M( E F0 ~7 I" J
- cta ( - (/ (sin ang) (cos ang)) ang)
" `2 b! |! M; p% Q7 Y* N6 q% _% a - g(polar p0 cta ri): y& L6 r( Q( ^, k; B
- )
" D* K9 H3 a9 p - . W5 [6 B' N: N
- (command g)
2 z1 O1 u2 N4 W6 t6 Y, F1 q* x) r - )
" u% H2 E; Y7 l R* |: O - (command )
# \6 Y: T6 o: B) N# K* s! O ` - )
$ C1 T3 C' E8 j) L
$ |: o1 x6 L$ b3 ^. @9 ]
9 D8 B5 R8 f; @4 a7 A3 _% h9 {二、螺旋源程序9 X# C6 n0 j( z0 z7 R, ]: P8 F1 H7 a
# e0 [4 |# ~8 y0 z; R3 M' O
- (defun errMsg (s)
4 C1 K6 U8 ^ {1 |* N$ B* g( m$ a - (if (/= s "function cancelled") (princ (strcat "
r3 X( \& G) u/ y- y+ E5 `# ^* X - Error: " s)))9 X8 O' E% b" j+ ~( a* z! {4 [
- ; 当命令执行时出现错误
1 G: w4 a) ~& y4 N - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C5 E% H0 L' i ^! D" a$ e
- (setvar "osmode" osmold)
% \. B& j# d* [3 M$ R7 g - (setq *error* olderr) ; 恢复旧的错误处理
! C3 ^7 C+ [; n! P9 c2 f0 @) t" s - (princ)
0 e9 q4 f9 i( ? - )1 F+ n1 K( d6 ?7 e' N
- / R7 q" f6 {. d; r6 Q9 L
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle & z1 i7 \+ T3 }" c
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)/ |# Y* l3 g5 Y3 s0 x
- ;-------------------------------------------------------------------
$ `- C0 X' s! [; \ - ; 获取公制外径大小、螺距总长
" k# z9 v" D! u, R: X+ a" X - ; 然后计算一系列几何点1 ^6 @5 W1 C- U8 c
- ; 并且关闭对象捕捉、命令回显
N" F% K, P+ J& {& ^& o - ;-------------------------------------------------------------------+ O9 O* ?0 G0 Y7 F7 \& S
- (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))
2 q+ Z, R" A) C j: t( u$ ^ - (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))
- c5 b5 {4 P: T. K5 ~ - (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)) ; U8 _$ ]5 u- T# N; P; @
- (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))
# C, e) @' e+ \+ F- I3 H8 F - (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! z! M0 v7 _- B* Q3 F- j
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
# w6 b% ?6 ^+ D% J - (setvar "osmode" 0) ; 关闭对象捕捉 1 w. l6 C2 k" q% W/ I$ U
- (setvar "cmdecho" 0) ; 关闭命令的回显% U( ]* ]% ~( B/ G. ?
' m7 Z' z, `* x, W4 _- (setq innerdiafactor 1.5) ; 设置内径系数 e# }3 m" V' c
- (initget 7) ; radmid 必须非零、非空、非负& u& A% Y# d: k* b- k
- (setq radmid (getdist "
f8 m( L+ L! u - 公制外径: "))
8 q/ X+ C- h4 c - (initget 7) ; threadpitch 必须非零、非空、非负+ q/ I. B4 s3 p' v0 J* m' ^1 O
- (setq threadpitch (getreal "
& e6 q, t# S" t$ {$ c - 螺距: "))
/ f+ Y# U2 S. x. d" j+ i - (initget 1) ; ptStart 必须非空" K! u) K; B% a' v) n- n
- (setq ptStart (getpoint "
. U0 V D. e ? - 起始点: "))
$ _6 c% d) a9 V+ @8 ^6 f3 u/ s - (initget 3) ; threadlength 必须非零、非空、非负4 V$ }! {2 x( N5 o# H1 B% m8 H
- (setq threadlength (getdist "
( V: P7 R8 l6 ~ r$ Q2 ~ - 螺纹总长(Y方向): "))
- P9 p( L; p9 y0 ~ - # K2 C# l: g2 E0 m$ q5 H) G
- ; 对公制外径添加公差
$ O6 i i/ Y" X4 [7 s+ S5 T - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
4 d" J9 t( X# b5 s7 z - (if (<= radmid 6) (setq order 1). V+ r" P$ k) t; ]0 F
- (if (<= radmid 10) (setq order 2)+ g& }9 d( b6 f! j" }; ]
- (if (<= radmid 18) (setq order 3)! s8 z$ {7 h4 D6 M; W4 w
- (if (<= radmid 30) (setq order 4)
x# o" t. K: x! ^4 y% X6 H; B9 x - (if (<= radmid 50) (setq order 5)
! |, u. Z+ F9 V2 t6 N/ ~( f - (if (<= radmid 80) (setq order 6)
3 B9 _9 ]4 A$ h V, ~' h3 g - (if (<= radmid 120) (setq order 7)
% x2 Y9 v0 g. g& g1 L - (if (<= radmid 180) (setq order 8)1 Z; T8 l# E# |+ J' S+ W2 c
- (if (<= radmid 250) (setq order 9); [0 h! C8 N$ Q4 ^ a1 r3 s, q
- (if (<= radmid 315) (setq order 10)
' m. ? f, R3 p2 m* \/ f - (if (<= radmid 400) (setq order 11)9 I7 {8 r% O, |4 ^8 {3 c
- (if (<= radmid 500) (setq order 12)
; M Y- q8 r, z* R: R - )))))))))))))
: A% k& L5 ]! F; t - 6 j _1 ]: q. P- q( y8 @
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带( F5 j& `4 P' }1 z# A
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
1 X& ?; D- p$ H+ ~6 N! X - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
, Z7 e ~. D$ [2 C - )))
0 k1 {% r; G" p) a% ?% } x -
# n. q- ]: _* @ - (setq h (* 0.866025 threadpitch)) ; 计算齿高4 w2 e' G: l9 k5 H
- (setq radouter (+ radmid (/ h 4))) ; 计算外径! v8 U5 z9 J3 m5 |/ X" M
- (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
* {) ^; w$ f! R9 K9 v - (setq threadangle (+ 30 0)) ; 计算齿顶角
! m. i. P1 B% t+ P% C* M - 4 c1 F7 c. I; K
- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数
4 [1 j8 L! B9 A2 h
+ O5 \" s* i1 `6 g6 f9 U- (princ "
/ f3 {0 p- y0 n q2 K - 三维螺纹创建完成")1 D/ e' b% O8 O8 ~, X
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
9 G4 n8 I- T) W1 p7 @+ v8 ?2 R- \ - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值/ t* W8 l, T, U" L5 x% W
- (princ)/ S5 V, a0 A9 L) U: ]4 b/ Q3 A; D
- )) Z U" B2 l) s N7 U" U4 O
" ~8 {( h2 |) B- y- p: V& D- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a; U6 i* _8 q/ i) f$ I. M8 D2 d. ~
- pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)/ _+ t% n% X+ X" K
5 d: y. U. M7 ?+ W, k! R8 i$ Z- ;(command "undo" "begin") ; 开始undo步骤: D3 G: `6 o' T
- $ j# }$ P2 D" a$ m* a/ k
- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)" @9 K6 S: x6 D; K) ^8 }
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart)); d7 P% i, n$ n. ?: L
- pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))7 Z( U2 g' ?$ R1 O6 |( O
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1). h% e" t3 {+ n
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))5 k1 Z: O Y" ?1 B
- ang (angle pttmp1 pttmp3). o0 M" q5 t5 L+ W. f( y2 t& Z
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
- }2 w. g7 l, R$ |% X/ \: Y _( R9 [ - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
5 t% X% A' M, s4 @" a - pt3a (polar pt1a ang radouter)! [! Q% ^; S% y" `
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)8 g) u6 s3 {( y9 S. X( y# }
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))" R5 J' ^( }) u* G
- pt3b (polar pt1b ang radouter); q* z9 U. P9 n; q
- pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
) B9 ?- _1 t+ Z! R5 b. _6 q - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)7 o Q1 d5 G! ]6 ]% x: f( N1 n
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))+ K$ ]+ q5 i" j$ Y! f3 n) m- u* A* {
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
+ |4 K) M: A& N) P - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
, Z# k( t! s. r - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
' z/ k) l5 l! b4 c" T - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
! Z$ }& {9 t3 l2 p4 l G" m2 S' N - pttmp11 (polar ptStart (/ pi 2.0) threadpitch) F8 i5 a+ F# G( A3 l. O- j1 g
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))7 S" `* k* L4 P6 _! V+ V
- )1 r+ e: \) e* I$ H2 b
' M0 I+ f/ {2 @5 n( m* B0 H, k/ d- ;-------------------------------------------------------------------
& W' |7 R" d$ h. D8 } - ; 绘制两个倒置的并偏移1/2螺距的圆锥
4 y4 A. t4 q& ?# { - ; 这两个圆锥都以中剖面剖分
# v3 V+ r/ f# Z, h, | - ; 进行并集运算, _: P( p/ `% _( [7 V
- ;-------------------------------------------------------------------" a$ s8 {# @/ B8 b1 j8 }
- 4 `; ^- k8 e$ R4 `* _% r# W
- (SETQ startcone "order")
2 R/ m. a7 Y: t! _: L - (SETQ endcone "Y")
, o- P$ B- n; Z7 ]8 O! i7 S - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b), `" Q; g7 N, f
- 2 y. U$ H( D( d. @
- (princ "
( r$ _, W7 S0 |1 | - 正在绘制三维螺纹，请等待")! W1 H; ] e# d* r
- (command "pline" pttmp1 pttmp5 pttmp6 "c")3 Q, W7 d, E1 o: y* C- j
- (command "revolve" "l" "" pttmp5 pttmp6 "")
. Q4 k1 ]$ Z$ [ - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
7 Q# C$ [% n& n' p3 @3 c/ N - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
7 x( I% [5 p5 r! f* n# v r" B - (setq tstmp (ssadd (entlast)))- I3 [( ~- f- s
- (command "pline" pttmp3 pttmp9 pttmp10 "c")
7 [% N0 G7 e# {) G8 O0 L - (command "revolve" "l" "" pttmp9 pttmp10 "")
M+ e0 ?! u6 Q+ r2 O - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
+ V9 u9 L5 i/ v3 D8 `% N/ G3 ~5 L P - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)/ O% @! p, G: g$ m
- (setq tstmp (ssadd (entlast) tstmp))( `0 J$ H) s6 Q1 g- t/ q6 i. k
- (command "union" tstmp "")
P) P* o% N# v
% a8 p1 s( J2 |- N( [& k, ^1 H ?- ;-------------------------------------------------------------------
, f% C. O6 i. Q) a3 ?* V - ; 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3 q& |0 S7 w3 v% [4 @0 \
- ; 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
- S, f% e2 o4 V5 \ q, _) y) G* [ - ; 在最后一步被切除! x+ J" I: H9 p: E' w4 O8 A7 R
- ;-------------------------------------------------------------------" g+ k, @$ j/ V/ \* ~
& h9 F& F/ m; L( _5 C' s- (command "slice" tstmp "" "xy" ptStart "b")
4 O2 h" a0 A$ w0 \ - (setq tstmp (ssadd (entlast) tstmp))
5 ?- k: \9 y6 d# }' w - (command "mirror" "l" "" pttmp1 "@10<0" "y")
+ J! M6 F: m- P: e- a! P - (command "union" tstmp "")
9 x: @: g' k& M$ v6 \% k - ( ]; n/ c* [1 U2 @: Y
- ;-------------------------------------------------------------------, O9 F1 G2 V) P, \
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）
$ W9 b% c% G$ s. o' \7 h9 U, ?5 @# j - ; 得到的实体再切除到指定的螺旋高度9 ?/ F8 y% [9 e4 G# h8 C& D
- ;-------------------------------------------------------------------* P. {1 {# V: |0 W: i3 ~; e" f
' |$ b9 D5 J1 C1 W- (setq e (entlast))
- ^4 w1 R5 E- L- B5 \: u/ u' { - (command "array" tstmp "" "r" ttal 1 threadpitch)" r! y& }7 h5 l* x+ \% H
- (repeat (1- ttal)
! X4 D+ C0 r& h - (setq e (entnext e); T, V ?( I& p/ r
- tstmp (ssadd e tstmp)
, v$ m* s1 y. M% Z( R! b5 _ - )
9 f. N7 n/ L8 T/ L - )
+ o6 n* n. U7 F' c# E7 | - (command "union" tstmp "")& {: \# ~' }+ W3 n
" M- v- B# B% y3 ]- ; 若开始创建45度的圆锥
" A) ?2 C- \1 a' h7 y - (if (/= startcone "order")$ H" h% T+ Y3 f, H8 M
- (progn (setq e (entlast))( I* ^" i1 L E" O t
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))( r9 ]( z* C% U' K' ]9 C6 M2 G
- (command "union" "l" e "")( p2 V9 ?; ?, {( N% ?+ R
- )
& [6 v. X8 [/ Z' J! H - )
3 g( c) t) H P2 s6 b
! z. O! @% E" g2 | Z2 F- (command "slice" "l" "" "zx" pttmp11 pttmp12)
8 Z1 f2 X! A" }/ } - (command "slice" "l" "" "zx" pttmp12 pttmp11)
! o3 K# `5 c+ l" @ - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) a& {$ h0 Q0 B* B, c! t
- ' S( H( ~0 s6 |0 I* T& `
- ; 创建最小直径的圆柱体，然后与螺旋作交集
5 v W. B' k0 ^/ p$ | - (setq e (entlast))& g& S6 S, \ R! x: T
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))" b2 x! O0 h) _4 b7 ^
- (command "union" "l" e "")0 N2 w8 J* p# ?! K a9 V3 }7 n. X
- (setq tstmp (entlast))5 d/ T+ g: @3 ~, U
) U$ C" C; |/ L- ; 创建中空的圆柱体
; a( P, a3 j# l5 {. u- K. D8 K - (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
, [4 _+ L& w6 o5 d; W - (setq e (entlast))/ w' O/ q# H- Z+ [+ E( V2 @
+ t9 ~# E8 ^* _, Y- ; 若最后创建45度的圆锥7 X6 i% J; {$ y9 q; h
- (if (/= endcone "order")8 a0 o: O8 Q* }6 T o7 U
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart)))
& M5 J7 A9 K1 T$ U6 V' b - (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) 0 F1 n/ K$ M# J- a1 k6 c4 b
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart))): ?9 a. \7 X6 \0 h) H+ U7 B
- (command "union" "l" e "")
; a2 D7 }) b$ r, d8 K - (setq e (entlast))
5 Z9 x" m. U: x4 r - )
! ?) T/ @+ |+ a6 `2 U5 M2 A - )3 G; I5 f& o2 ]& [3 p1 a6 r
- 1 P6 Y1 q! m6 r; |* {/ ^# x
- ; 从大圆柱中减去小直径圆柱
% F7 L- p% {6 b1 y" a1 c3 M$ s - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
) a$ X+ j3 ], p% A0 ], _ - (command "subtract" "l" "" e "")& J; s3 X8 E6 |1 T* ?1 [ o- Q
- (setq e (entlast))
! g9 G# d% M4 d; O6 i& M; [ - * v$ [: t: x E+ M. B
- ; 从螺旋中减去圆柱4 G1 ^" V1 F' E& G
- (command "subtract" tstmp "" e "")
- b& q9 t m0 W - . i2 l1 X; k4 b% L; L- V7 m/ _
- ; 如果螺旋长度为负然后镜像- O# Y2 |$ ^! M- a6 d
- (setq e (entlast))0 I& `9 Q' O/ i' f( F/ n& |
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
/ f1 {. F8 u4 ~0 G; U# `, A) { - 0 b, r! k8 [- r/ H! y* H
- (command "zoom" "p")2 |1 R% i+ ^2 L* t, e
- ; (command "undo" "end") ; 结束undo步骤
; T$ a. o5 S" q+ H0 f9 }3 { - )
( N; f# t8 [: Y
0 y; _7 _0 y: O$ Q( W0 d- ;;;---------------------------------------------------------------------------------------------------------------------;4 G1 V) h, z2 A" `7 k1 i% r
- (arxload "geom3d" nil)
& s- B8 Y( d5 u - (princ "+ p; z3 `4 c9 N. }! v4 z0 w
- 3DThread 已加载。 ")7 g2 q( i' o4 W9 x' W' o
- (princ)) u8 u3 i2 H+ s: y& b1 X: O @4 ~
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1 D2 f$ U. u; O# E, S H! p三、弹簧源程序
& X6 r2 R, K6 C' u* u p- (defun errMsg (s) ; 当命令执行时出现错误 6 n" \" v2 |/ p9 F, U5 i
- ; 例如用户按下了CTRL + C' K2 {; b: L/ r6 a* M
- (if (/= s "Function cancelled")+ Q% C: k* i7 O5 h8 n B! e3 W7 Q
- (princ (strcat "7 _# d6 D7 }3 ^) d
- Error: " s)); _4 I. m: Y; @% F& d2 P/ @( H
- )9 w& a2 a+ A/ W! `; q8 h4 p& ?( X. j6 I
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
* W6 x% t7 t; K/ O7 Z) z* H - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
& z% M: p) q: j4 _6 T1 L - (setq *error* olderror) ; 恢复旧的错误处理
! w: s: \- a6 O/ `1 P: U; r - (princ)
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$ h" ^! X; Z- x. V2 [3 E% g
* T" ~( d, p; Z% k7 F$ ^- (defun spring (nRepeat cntPoint bhfac lr strad bvfac4 j, I; D. R+ l; `( ?
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)* r; { x7 h1 v
- ; P) w4 ^$ a. k( R1 S: x2 O
- (setvar "blipmode" 0) ; 关闭 blipmode 3 f: i4 W# E7 I) i0 T
- (setvar "cmdecho" 0) ; 关闭 cmdecho* m f3 [! d/ b2 T+ V* d0 k5 o
- (setq Pi2 (* 3.14159265 2))& {4 u* r5 y ]7 |- Y6 U0 A
- (setq aGrw (/ Pi2 lr))) C3 ~7 h4 o! n' y t; i1 Y+ J
- (setq dhGrw (/ bhfac lr))8 e: }' \# s/ B! |" m+ y7 I7 |( `4 f
- (if bvfac (setq dvGrw (/ bvfac lr)))
. j3 Q6 n1 ]; M; u5 k - (setq angle 0.0)1 u( l+ ~1 [) @; j
- (if bvfac
' D6 w: q* ]8 q% _& t5 | - (setq distnc strad dv 0.0)
! b% n, y# w9 S0 {# X" }* j# ?$ } - (setq distnc 0.0)
0 A; q0 h4 I- z, X8 h) k4 C- q, k7 K - )
* W/ G3 d6 Y* ~& ? - (if bvfac $ ^6 F! d0 p7 N7 W0 {
- (command "3dpoly") ; 开始绘制弹簧, G' M' Q) z3 M3 G9 P' k5 W y' Z6 ?
- (command "pline" cntPoint) ; 从基点开始绘制弹簧+ I6 @& y& |$ @$ L% W0 L( M
- )
2 }3 m7 T& C5 r2 y. k3 z) [+ ?, T - (repeat nRepeat ) I9 F; x$ v/ z4 j3 |5 [& l
- (repeat lr " f6 A! F' v+ F* _) M
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))2 K6 l& `: N# G
- (setq distnc (+ distnc dhGrw))
4 i3 d3 m8 v/ n8 ?/ ? - ). @2 t3 U4 @8 J+ f
- )8 f& I+ x0 C! _
- (if bvfac% T: [% T' W- i+ R. J6 T- `
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))& t6 {6 o- l2 h* {
- dv (+ dv dvGrw)* j5 {$ |* V, J, k
- )
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- (command tp) ; 继续输入下一点
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- ) ! k& I6 T" f2 U. ?1 n7 W
- (command "") ; 输入结束
' z; v6 f# I8 y. S+ O* w - (princ)- T+ Z. l+ d$ g; ~4 B* R, k
- )
w+ I6 }! e2 e( d7 I# n( W3 q5 ]3 M - $ i* ^5 x# I# L+ u
- ;;;8 B2 A: m7 R+ C8 L' G" E$ K3 i* j, b
- ;;; 生成三维弹簧函数调用接口' M3 F4 W: `; t6 n
- ;;;* }7 E. x8 B8 }' W/ ^2 T4 V" F
- : x# A# i( u* \
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) , N8 t3 p% d l' G1 J
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
' C, \" k) e# y/ g1 ]. e& F - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
0 o* G# B# L* Z [# e1 ]. j - (setvar "cmdecho" 0) ; 关闭 cmdecho
6 V! j' g: H+ b2 Z - (initget 1) ; cntPt 必须非空& s4 \, J( H1 K' r3 l1 }7 [
- (setq cntPt (getpoint "3 Y7 e' a0 p8 I3 \) i3 ?6 V3 |
- 请输入底部中心点: "))
8 a2 h+ ^' B% ~* y5 n% [7 x# D: H - (initget 7) ; RottCnt 必须非零、非空,不可忽略
* d9 H( I1 C) Z# S9 Q - (setq RottCnt (getint "& I: X ]5 P! S9 p8 c( W
- 旋转的圈数: "))
# b' o d) K7 S - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略5 [7 X) Q! ?8 a) M3 {
- (setq bgnRdtn (getdist cntPt "" Z5 g/ H: V6 O; n7 l8 M4 l+ |5 Z2 e
- 起始半径: "))2 X& A! J- x. o. L# W6 T, |; e
- (initget 1) ; cf 必须非零、非空
7 u% f `) }8 r/ o# w - (setq horiGrw (getdist "
6 _# T0 ~1 c6 s }; _ - 每一圈的水平增长距离: "))' `- p2 E0 x2 h" Z, }% a" T
- (initget 3) ; cf 必须非零、非空- y% S* O* ~3 T. a1 a# n
- (setq vertGrw (getdist "4 O! @( u2 K& {* Z/ X3 Z8 d" O
- 每一圈的垂直增长距离: "))
+ ?" ~4 T* ^+ o" m/ B - (initget 6) ; ptCntPerCircle 必须非零、不可忽略
3 M+ b* p/ `6 W' n- t+ F" t - (setq ptCntPerCircle (getint "
$ L0 Y. F- ]& F - 每一圈的插值点数<35>: "))
8 x/ R0 |# d9 A* V4 |7 Y4 q - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) # h* V9 N. \& \6 x, z5 C4 Z3 c' G
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)7 `% K. o4 m' d! B1 ]
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
, k1 N) @+ m" g$ z o) ^& L: r y - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
; E) N/ z* U& V T7 F3 c7 n - (setq *error* olderror) ; Restore old *error* handler8 \2 B* S! \. N; O+ D
- (princ)9 O# g. H8 w3 S
- 4 f; S1 s) x3 j4 n/ D2 Z: N) u- S' M
- )
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
