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8 ~/ I2 a& c( x0 o/ c
4 i' W" x4 E" Y) V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：& ]4 Q Z) P( q; n' P6 L5 ~% s' P
一、齿轮轮齿渐开渐开线/ i2 d8 q4 o( H' P
7 k6 c Q+ E/ F; f V# ^7 |5 P- (defun c:gear(/)
+ D; n, B" F' g9 i4 Z - (: f7 V3 w" b' n& z6 f' ?" b O! C
- setq1 E# ~0 Q1 E. k( A( o! V$ q. d
- p0 (getpoint"输入齿轮中心p0: ")
* G. M# \5 f2 F. L' s+ a: D r - m (getreal"输入齿轮模数M: ")
) X& z( t4 V t - z (getint"输入齿轮齿数Z: ")
- n: Y; }9 j' e/ u5 _ - ha 16 g' @( u+ j; c# z
- c 0.25, c6 A9 ]1 `( [- A+ `3 `$ t+ w
- a (/ pi 9)2 s6 L. m( ` B' t
- ra(/ (* (+ z (+ ha ha)) m) 2): o% E' m) X8 `
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2) I' H8 s5 m6 L2 z
- r(/ ( * m z) 2)
# F' c- |; [4 t6 v - rb ( * r (cos a))
# ]- V4 X( L1 u$ l* t4 g: ?4 @ - ri rb
- e, Q8 q/ j1 A - ang 0
; o; C0 G N9 M( w8 K: m - g (polar p0 ang rb)
& f" f2 u$ K. Y; |+ @6 m3 H - )* j3 b) S: }: c% m A3 s
- (command "circle" p0 ra)% T4 N! W# S8 g* l3 J
- (command "circle" p0 rf)
6 a! S) |, g( T7 z+ \9 j, B# d% D$ Q - (command "circle" p0 r)/ t+ j+ h" ^, C! I4 w9 v+ L
- (command "line" g)
; a, q# ~7 m0 }5 j; j% \ -
4 M- l4 E9 W) R/ @! n) t - (while (< ri ra), I+ U8 V% z. V6 W8 A
- (setq3 G% V7 V+ a! i9 }4 V7 l
- ang ( + ang(/ pi 360)): z; U* J, @6 F- p8 }, F \
- ri ( / rb (cos ang))
; g- ]( L9 H& J8 P/ D$ W% H - cta ( - (/ (sin ang) (cos ang)) ang)' B: i3 ^7 n2 ^( y/ b! c
- g(polar p0 cta ri). ~2 O; X' m- l4 X2 H
- )
& b- D+ }; f4 l$ w( s
, A$ v' X- J, B/ {3 g, ? B, M- (command g)
1 H* D \( D9 C( w- u - ) J7 c2 y3 F! j+ N/ o
- (command ) 4 z. {6 x; a& ?0 ]5 a7 S& V/ i u
- )
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二、螺旋源程序
4 L+ h5 s; y1 ^/ F( N; d8 Z
6 G9 ]% j* G; a- (defun errMsg (s)6 a( l: z- I; n0 T2 C
- (if (/= s "function cancelled") (princ (strcat "6 [$ S- s6 k/ a6 ^ B: m
- Error: " s)))
. V) c2 M: V( T" Q9 b - ; 当命令执行时出现错误8 G8 _( N5 B2 Z! S
- (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C+ W" s- w F& z3 u+ H2 B
- (setvar "osmode" osmold)
* J" X" ?! Z9 _2 n - (setq *error* olderr) ; 恢复旧的错误处理' E+ Y- J' U+ m& X
- (princ)+ J6 h& l( |0 m) D" o: |
- )
6 f6 \5 Q" F- P. U" P
5 O* }7 W& d8 b* Z- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle . \' J4 y; k e1 L( e, G
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)# H/ q& j$ W% I& m
- ;-------------------------------------------------------------------6 T& h$ o: F4 G( @0 b
- ; 获取公制外径大小、螺距总长4 U. { g# \6 g0 [. g
- ; 然后计算一系列几何点
( ~+ r+ X: ~. ~& H+ b0 U - ; 并且关闭对象捕捉、命令回显
1 `+ \/ I. o) ^ b6 x+ H5 b - ;-------------------------------------------------------------------
4 {2 O/ Z8 W: ?: Z! V4 L - (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))
: ?6 {2 i( X9 S3 a" Y% z - (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)) 4 I0 }6 r) ]: g
- (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)) w, L! W# d* z% C: }3 _
- (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)) ( K b7 b: y$ n* U
- (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))
. R4 v, l+ }4 b - 4 [" `4 Y! t4 C' U8 }* r7 Y
- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值9 w; A- l5 e. q2 N( ?9 r: o" q8 X
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值- K- T+ s/ s/ f1 u6 T
- (setvar "osmode" 0) ; 关闭对象捕捉
* W% y; M! l1 { - (setvar "cmdecho" 0) ; 关闭命令的回显* Y# g" S: k v$ M$ ~! a, \8 G
- # c/ r6 p9 j# c3 p0 g
- (setq innerdiafactor 1.5) ; 设置内径系数9 L) V5 j, a' u5 m( F. ?5 |7 c- w
- (initget 7) ; radmid 必须非零、非空、非负
2 [+ y |. A5 r H9 `0 J4 | - (setq radmid (getdist "$ p0 }; }6 l3 G+ ~
- 公制外径: "))
6 p. S/ B* o; N2 X2 x! K5 B - (initget 7) ; threadpitch 必须非零、非空、非负8 ] o Q5 V. i& a' w8 D
- (setq threadpitch (getreal ": P7 u6 Q: n7 G/ S+ p- J/ D3 U8 l
- 螺距: "))
& _: |- f) c9 h" a - (initget 1) ; ptStart 必须非空
4 E( e% V" i0 ?0 i# W6 E) q - (setq ptStart (getpoint "
! s( M! S" B/ M' { - 起始点: "))- f- j: A8 K/ _* p5 y9 B
- (initget 3) ; threadlength 必须非零、非空、非负6 Z1 l( q' v- S0 w5 w& V
- (setq threadlength (getdist "
7 v* m" g5 r/ P# Q+ g# G) e - 螺纹总长(Y方向): "))
i- J6 r8 T0 X# U: G/ y
6 Y7 x: ~% J; z. W4 a) M, F0 v- ; 对公制外径添加公差
! a7 {* o, V. a* b) [; G) N - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置# ^" g. G. l1 h: b1 ]+ i
- (if (<= radmid 6) (setq order 1)+ P, M% N X: H; W
- (if (<= radmid 10) (setq order 2)4 h# _# `6 g6 V( A9 ?) I
- (if (<= radmid 18) (setq order 3)
, K% L. l. y$ C2 M - (if (<= radmid 30) (setq order 4)
# o& q% H3 L$ @; j7 Y% e' r. ]/ G - (if (<= radmid 50) (setq order 5)
) N) z' u2 V0 V9 w+ F. A, ]. N - (if (<= radmid 80) (setq order 6)
2 W7 o; k' g6 i; S, O - (if (<= radmid 120) (setq order 7)
, r& P q m7 [; F! {2 ^* f - (if (<= radmid 180) (setq order 8); M9 c1 l' j2 m0 A8 a
- (if (<= radmid 250) (setq order 9)6 w' R; Q5 y/ a2 u
- (if (<= radmid 315) (setq order 10)% O8 d" U3 }# ]9 H- v
- (if (<= radmid 400) (setq order 11)
. ^7 o$ [2 D$ ?- H/ G6 w+ o - (if (<= radmid 500) (setq order 12): C0 A3 h# |9 f- f1 ^) C) k$ K
- )))))))))))))/ |5 z6 ?. }4 G2 V- d
- ! h0 M+ g& C$ w
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带6 I+ H' }1 b- k t$ M
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
) W5 y9 ~, j+ a - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
) t3 x2 P+ s6 a$ H - ))). S) v0 u0 g9 Y6 I
-
8 B) E* h% I9 b% t% B - (setq h (* 0.866025 threadpitch)) ; 计算齿高
5 x: s" J% ~! g# B$ A - (setq radouter (+ radmid (/ h 4))) ; 计算外径, ]: {+ F2 C+ X R% M, S/ \1 V
- (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
/ w1 g9 [' s' L" ]% D5 ~ - (setq threadangle (+ 30 0)) ; 计算齿顶角' {6 k+ t; _! @* [4 |
- 2 ?) E/ n1 c0 X/ a- P8 E- R1 c4 D2 E, s
- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数+ e: ~) N; b; y6 P! W3 M
- ! r; E6 p. P+ `/ M7 w8 l+ P$ B
- (princ "
6 m+ |( m7 n( p* U - 三维螺纹创建完成")
3 k z1 {7 y* R5 N - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
6 Q. K4 p3 `" X' G - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值& P; J% |: J1 f$ D0 w0 j
- (princ)
' `1 k- H) k+ T - )
" E1 I7 t( M3 u4 j5 q9 ~' A8 a
3 ]8 z: z" Y* ?- O6 Z0 Y* B5 l- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
2 X I7 |( z4 K5 D; q4 G - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
" i* E: Q0 n1 Z0 x, K2 d
* j: m- O/ K! ]; }8 ^- ;(command "undo" "begin") ; 开始undo步骤. Y" S) E) e' R2 [. ]0 R
- 6 G C2 t! n7 B
- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)5 g( J/ t& @% ]* {& E
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))+ N" ^1 h* K8 u& d
- pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))& U& ^ k3 T( Y( u/ @/ a
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1); J8 g4 Y7 g) ~" h! C
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
! j p$ K! n* A7 J [5 ^" X - ang (angle pttmp1 pttmp3)8 N8 J& B0 ]) e, C# J
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
' ]* y3 M! c& ]. Q; j: m - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))8 X) H6 b8 M4 s2 z* a7 ^$ l
- pt3a (polar pt1a ang radouter)
* C2 r( }# T! s R2 s! g - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)" o' E$ w! m) x! t5 u' {: ~" X( T
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))
8 G0 G% _. M9 A1 y3 q! B. O- n - pt3b (polar pt1b ang radouter)
5 h( n# I% f, {. S$ Q9 D9 x$ W- e" ]2 { - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
8 j6 p: d. ~, @9 p - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
7 N5 H, w1 @0 I3 T7 ~3 o - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
7 k Z! j/ N0 F1 l+ d; }* j6 W; w - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1). |" \% F7 m# g; O; k2 M' _
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)% y8 B+ q3 U% _: r. r% y' H& z
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)1 t% B, d3 o7 c) |' r) z7 Q- ^
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
& v; N! J6 N( X$ s - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
4 T4 D, j# ~) l - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))6 B1 B8 g' \0 a. U
- )* h) |8 n0 \& n8 \" L
- }" L. t: `$ i+ H/ P: Z
- ;-------------------------------------------------------------------5 L0 d- ?+ \# _, Z
- ; 绘制两个倒置的并偏移1/2螺距的圆锥3 ^% W' a/ w7 J# R" B* `/ D! [
- ; 这两个圆锥都以中剖面剖分+ e& |: d c& N7 W% Q
- ; 进行并集运算6 b& B- X9 t6 F3 D, i* P6 X5 B+ i
- ;-------------------------------------------------------------------
% s- h; o! j1 p1 v" \# e
. |( V4 e& F7 P! z+ I% Y- (SETQ startcone "order")9 _1 u! k6 q( \7 ^/ k
- (SETQ endcone "Y")8 w. M9 W( R* d5 X6 |' w
- (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)* j6 T) f0 S+ Y5 e1 y# |: o
# V( O9 q# g3 o& `0 _8 b) Q- (princ "! c/ h& j4 K" r+ k$ Z- M
- 正在绘制三维螺纹，请等待")' w7 _% F& q8 S9 ]0 s) ~$ c" n
- (command "pline" pttmp1 pttmp5 pttmp6 "c")$ `9 m# [) L0 G; y
- (command "revolve" "l" "" pttmp5 pttmp6 "")
3 a0 s7 E* h" W) `" L - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
9 ]0 }5 c6 D. O a - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)* E" b v+ z0 s9 F" I) l
- (setq tstmp (ssadd (entlast)))% [! Q( J/ u8 |; S7 M' e
- (command "pline" pttmp3 pttmp9 pttmp10 "c")
, R# D6 u7 e( u6 r% J) h - (command "revolve" "l" "" pttmp9 pttmp10 "")
' x8 {( |; ^2 m, h! F - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
1 T" J i' I* O6 a* [ - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)& W4 e+ @- L# d8 t* v, X
- (setq tstmp (ssadd (entlast) tstmp))
0 m) H3 M+ U* m% g - (command "union" tstmp "")3 y3 G5 @7 s2 q [# N Q
% D& y% I2 ~7 r: L- ;-------------------------------------------------------------------
9 h H' `/ Z9 I6 Y5 ` - ; 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
: D B: M0 G4 B - ; 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2 E5 r3 ^" b3 X- G0 U$ N' Q
- ; 在最后一步被切除7 d9 ?. _# _$ s4 P [4 A
- ;-------------------------------------------------------------------0 K Z% m0 [% P# T& \+ f: R
1 I7 D I5 @* d% g- (command "slice" tstmp "" "xy" ptStart "b")! o- z+ S9 c! I* @7 a' a$ a1 n$ w
- (setq tstmp (ssadd (entlast) tstmp))
/ C9 L/ w, ]! P: F! W0 Z - (command "mirror" "l" "" pttmp1 "@10<0" "y")
/ ?7 ?. s5 J4 @: {( W; ~# T3 ]* J- C - (command "union" tstmp ""); K; U9 Q, y3 y9 r5 q) C
- 6 |& n- Z( R% q
- ;-------------------------------------------------------------------
/ A$ ~, c- D' R" V1 h o - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）. p' k/ V3 g0 N3 z7 E0 Y
- ; 得到的实体再切除到指定的螺旋高度# R- C0 O& F- ]2 G2 U5 t' Y& q! _
- ;-------------------------------------------------------------------0 g6 `5 Z: O% ^
. F n) V' V4 ]! z% z: ?- (setq e (entlast))" L0 K, h! A$ j. O
- (command "array" tstmp "" "r" ttal 1 threadpitch)9 \% ^# ]4 m% N* b
- (repeat (1- ttal)3 @# W5 @8 S! M; f% p) L! G- R
- (setq e (entnext e)
]4 D/ C B8 F3 N# D) t" O - tstmp (ssadd e tstmp)
2 h. Q1 ]3 f- N, i' `0 y! l - )
# s- s' \) o7 V3 x - )9 T8 H4 o% m. @9 i
- (command "union" tstmp ""): e% @; n/ t' D7 \) |0 t
- N6 i" t( C- i- ; 若开始创建45度的圆锥' A% S9 U. k. T8 _4 N
- (if (/= startcone "order")
4 `1 h9 i7 [% }" ^- X* M3 L+ S - (progn (setq e (entlast))
* I& O( D2 B9 P6 j, V/ k7 A6 j - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))5 v/ W/ ? X& ^8 Y. h
- (command "union" "l" e "")
( A! u* N# u( {/ ^# R - )" d& ^6 i* o/ ?% A# R
- )
1 M9 A6 \8 y& h6 z
. f* `8 v! Q( e0 o! n1 g- (command "slice" "l" "" "zx" pttmp11 pttmp12)( ?. c5 ]& |! b+ z
- (command "slice" "l" "" "zx" pttmp12 pttmp11)
! d4 l; Y1 a6 o4 W - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) % s3 }; ]# G& ~( A% P# O
- 2 o: X" E7 C- D! G) H3 g
- ; 创建最小直径的圆柱体，然后与螺旋作交集
1 @ T8 e1 J, E; N- N - (setq e (entlast)), }' B5 p; ~+ B) p, l, I& [
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
. H! `+ x; w; p3 I3 X- \ - (command "union" "l" e "")' M- N v' D4 g5 m
- (setq tstmp (entlast))
" r% d% ~/ z2 ~$ d+ ?
" h/ |* Y! b5 C' E- ; 创建中空的圆柱体
+ T! O! U( _5 j- { - (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia$ h( d0 u+ x! w- B+ e4 A7 I' O
- (setq e (entlast))
. A% Q1 I! y9 ]. k0 P8 W8 g - 6 i- ?8 q. \4 \* Q# Y1 o
- ; 若最后创建45度的圆锥
& @' |* Q# p0 ~. @ S& B8 a - (if (/= endcone "order"), ^" h( k! R' ]: y5 `/ s
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) 5 q2 o( k4 e+ x% T2 {
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) " P6 ?2 y7 T1 c5 p/ Z
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
+ k$ p3 Y/ G; I# ] - (command "union" "l" e "")
/ m% B9 p _% C/ Y9 C% Y% P - (setq e (entlast))
/ I6 r2 L9 b5 W! V - )
6 L0 `6 m8 _7 D' D! W: M - )
4 v( o, I y( z' F" Z
$ E8 \% f# M# v# r. t- ; 从大圆柱中减去小直径圆柱6 j1 q) V# K; N. x9 q# g
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
; n2 g4 x- W+ y! E$ ^0 T - (command "subtract" "l" "" e ""). z# {0 f& p7 o/ U2 ^/ @
- (setq e (entlast))* c0 K0 ~1 h% `6 Q4 U) ]
- ; P3 L9 ^8 @3 n" f B/ t
- ; 从螺旋中减去圆柱/ Q2 I4 B' E& |/ h, {- }
- (command "subtract" tstmp "" e "") p' I( G# R B# l7 ]1 A' G
/ H, C: U! J( g- ; 如果螺旋长度为负然后镜像. {- W/ D& M( G9 L" _
- (setq e (entlast))
+ e4 v. d, q' O% `' f: I8 m - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))$ T+ D7 P- o( z$ m! k y
' A5 y; D. ]9 R7 m% `" ?3 A- (command "zoom" "p")
# g* U7 [. f$ T; N - ; (command "undo" "end") ; 结束undo步骤
) O" m3 X* e! K3 [( L - )
) G4 F8 S9 M& c
; \1 {8 x4 h' D# a6 W- ;;;---------------------------------------------------------------------------------------------------------------------;" A) Z- ?$ b, d; N
- (arxload "geom3d" nil)
/ Z1 O) g5 V5 e: N! ~ - (princ "( D/ V P2 G, j! L0 h- z) d
- 3DThread 已加载。 ")
' `( V% D) T9 D1 q$ G/ s. Y7 }4 D - (princ); L& o3 i- a9 b- `4 J7 g
* ^9 a; J7 W1 U
4 O1 S, ^# J6 h- p
三、弹簧源程序" j0 k* K( ]3 b0 ]- `, ]8 p
- (defun errMsg (s) ; 当命令执行时出现错误 & M# J5 v4 x2 J2 l( @3 J
- ; 例如用户按下了CTRL + C
4 }3 [- ^5 x! @0 n- z - (if (/= s "Function cancelled")
s. r+ c+ c! l9 u& w# v - (princ (strcat "9 C+ d3 s* o4 U1 \5 l% K0 c
- Error: " s))
- Y" h- \5 A, t5 g3 Q - )
1 J+ r; N5 j% V - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
+ w! S' W, w& F0 \ |$ ?3 f - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
9 x, r; q, U* s5 S - (setq *error* olderror) ; 恢复旧的错误处理/ a9 a" X: L7 ~+ q4 `, {
- (princ)0 e& Y8 q# r' N; Y. v7 P
- )
4 u0 Y5 M* B$ S/ c3 j+ t8 }
2 d. r+ s9 V$ b5 p# W( y- (defun spring (nRepeat cntPoint bhfac lr strad bvfac( x# J& _5 D9 C2 J$ S5 B F! N
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)7 j1 Y2 v! E; @4 f' O
- ' v* W9 X8 V" ~" X& _! I/ }6 a
- (setvar "blipmode" 0) ; 关闭 blipmode
5 D. D* k3 u1 v/ d0 U4 O g - (setvar "cmdecho" 0) ; 关闭 cmdecho! l3 F0 y% M8 S( W5 g7 h
- (setq Pi2 (* 3.14159265 2))
0 n; v6 E Q0 ~% N+ ? a* g5 k - (setq aGrw (/ Pi2 lr))
7 i; J3 \) q" _1 M# ^ - (setq dhGrw (/ bhfac lr))7 v$ `( V# k' R- [5 Z$ X
- (if bvfac (setq dvGrw (/ bvfac lr)))
' ~$ o) m; v' ~0 z1 v1 A; Y - (setq angle 0.0)
+ B6 J) S0 l# @+ i) h) M - (if bvfac
9 e. ^, \( C* K, u3 u" h - (setq distnc strad dv 0.0)! S# n# W+ J U( c, l
- (setq distnc 0.0)
% H* a: q5 E7 X; H) l# v - )
l* \5 x& q- c# b1 R# ^; L; @ - (if bvfac
$ ^3 L$ J: w2 {" W! M% n% h+ B# z - (command "3dpoly") ; 开始绘制弹簧! a o6 i8 }& f
- (command "pline" cntPoint) ; 从基点开始绘制弹簧
* L, ~: I6 v2 K0 r - )
' l: G. |: Q; |( n8 W* T - (repeat nRepeat 3 _& @* [1 y' V) i- c E
- (repeat lr ; V0 `# ?2 h8 P* b% e7 d
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))3 a. c- V& |- D' i) [" L
- (setq distnc (+ distnc dhGrw))
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- )
# a9 p* f G3 h8 T7 I - (if bvfac |: T- {- {, u
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp))). B' g2 q$ N0 M6 V# N* S0 h6 ^2 {
- dv (+ dv dvGrw)! M: B; L( D* E
- )% a F1 r7 e6 C
- )
/ r. j5 P1 ]8 C8 Z( s - (command tp) ; 继续输入下一点
& b \/ M% Q `2 C+ _% Z* E* v/ Z - )
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- (command "") ; 输入结束
, L7 q3 \6 r$ {8 _2 V* K4 y - (princ)
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- ;;;
0 a# G5 }( u6 B) p& X S - ;;; 生成三维弹簧函数调用接口
* I/ q" ~! ~- e% e* h - ;;;
- H7 c+ I1 N- n2 r q+ s - 5 f$ J) a3 u" D5 m3 g6 \4 }9 i
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
6 F+ t4 d7 e+ q% G$ l% G4 u0 f% [ h - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
2 `( x2 @$ t- K/ |2 n& H# c% S - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复 e3 T- o; } s9 [* k8 w
- (setvar "cmdecho" 0) ; 关闭 cmdecho
' X2 C) E8 _! r% g7 n - (initget 1) ; cntPt 必须非空* d8 S$ ]3 S* W- g: A! d
- (setq cntPt (getpoint "5 P2 X1 ^5 B4 u$ V$ Z6 [4 G' g9 {
- 请输入底部中心点: "))
, _! s# D* ]8 E! ?+ x* v - (initget 7) ; RottCnt 必须非零、非空,不可忽略
5 a( F* v. i1 D - (setq RottCnt (getint "# x& s6 V5 D! N5 c2 }- w
- 旋转的圈数: "))
! @3 b6 G8 D1 D2 E1 e# O% ? - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略2 l: ^1 h% F, J: C
- (setq bgnRdtn (getdist cntPt "! n* V3 \0 y8 P! V! l8 ~
- 起始半径: "))4 h& J! [8 k. Z0 t# L1 x: S
- (initget 1) ; cf 必须非零、非空: n0 H6 E, r* [' R% Z# W9 Z i- n
- (setq horiGrw (getdist "
% f4 i, J. h6 j/ H0 n: ]$ Z - 每一圈的水平增长距离: "))
) ~( y; }3 @; z# d5 U - (initget 3) ; cf 必须非零、非空1 G1 @$ a& q2 z% U" f! b
- (setq vertGrw (getdist ") M6 N, U* r x4 z
- 每一圈的垂直增长距离: "))
# t6 e# R' q t1 O - (initget 6) ; ptCntPerCircle 必须非零、不可忽略
! `- ]4 L! Y% ^0 S1 k+ O1 ^ - (setq ptCntPerCircle (getint "
. }& S; C3 H- ]5 H - 每一圈的插值点数<35>: "))
+ O4 W$ }0 ^) c - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
6 p8 _( ]' `. n - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
. y1 s& y* m# U& @# b s. ^" j - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值0 J' I! f2 V3 a) ^) K
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
0 T& D( B0 M& S* J6 j# G! M - (setq *error* olderror) ; Restore old *error* handler
. c. r# I- Y# p: W4 N - (princ)! z2 T. g2 D* ?- \7 L, w
- 9 |8 _* M" J% X* v8 s
- )
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
