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, j' C$ O, R3 A3 J3 w3 ]
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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：+ g/ C7 h3 X M6 T0 s' e) J
一、齿轮轮齿渐开渐开线9 V$ I$ F$ {3 ^
" r `- C6 v4 R% e- (defun c:gear(/)( q, I6 H, U* t$ Y
- (' h: J( F2 C/ y; q& K. {- i2 Q
- setq
9 F6 k, }& [+ m6 L - p0 (getpoint"输入齿轮中心p0: ")
1 N) c1 }2 d: I( j4 R. ~6 O" M - m (getreal"输入齿轮模数M: ")
3 E0 h+ \8 R. |# x - z (getint"输入齿轮齿数Z: ")
" {; f2 x2 [5 @+ U) i* x; m7 D - ha 12 m* Y. o0 y$ n* A5 M- {8 r$ H9 `! w9 T K
- c 0.25
, h5 a9 ]% i& ^. u: A - a (/ pi 9)
: F1 _7 E8 n2 y7 ^$ N/ u! g8 Q7 Q - ra(/ (* (+ z (+ ha ha)) m) 2)4 n+ D' }1 V! V9 [- X4 d
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)& r% d7 E3 m1 `
- r(/ ( * m z) 2)' R5 y: F- X) ?
- rb ( * r (cos a))
) a5 D. D- x% b$ S - ri rb
$ J0 l A9 a1 Z2 e* ]' Q& b9 b; f - ang 0
; h+ j7 e+ E' ` - g (polar p0 ang rb)+ c- }* x5 g7 q* O1 W( s( t2 v- Y. P
- )
4 r# E t5 i! b- B& p! _$ C - (command "circle" p0 ra). C/ k% s. b- k: ~8 z ~. [
- (command "circle" p0 rf)2 q, f; h: ~6 `, W, ~; u; S5 f
- (command "circle" p0 r)$ O/ E5 a6 I) e' O
- (command "line" g): O" E9 [0 U j4 X* @. [- s
-
& O2 o' Y' R- M8 s - (while (< ri ra)
/ r( J* {9 K1 n( W! ]' l - (setq% z4 A& R* e# g9 F# b6 I
- ang ( + ang(/ pi 360))/ ?- B8 C2 l) u/ R4 h& s
- ri ( / rb (cos ang))
, m5 ~7 { A8 o5 z- W5 s7 p - cta ( - (/ (sin ang) (cos ang)) ang) G2 {. r1 L# U h! ]6 ?' C
- g(polar p0 cta ri)$ t$ }6 U9 ~6 }( c" Q. {
- )0 |( h7 e+ q# |# j( X/ O
- 5 ^% G; g# {% M! r3 g! T1 e
- (command g)
A. f! m9 L& F - )( }% o3 |; i3 ~% |+ E
- (command ) 0 d- P4 c# z/ o$ }. l/ \5 h# O
- )
3 R/ p# l2 H# W' ?
1 d2 [) Q. `" Y% a: \, a* j8 Z! n" a6 \" f0 u. x
二、螺旋源程序& l6 C) S. s1 q' o2 H5 n# H
2 w& w: c* G, N
- (defun errMsg (s)
8 J1 z! {5 b w( G- c - (if (/= s "function cancelled") (princ (strcat "
l* ~/ |6 ~; K7 A - Error: " s)))
. J6 C2 K; }+ f - ; 当命令执行时出现错误
0 P; f5 m! S8 T1 r a - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
- G/ L/ S8 T# B8 `% N" D \ - (setvar "osmode" osmold)1 e6 F1 Q+ R2 ^0 I9 d
- (setq *error* olderr) ; 恢复旧的错误处理4 O. z5 W6 P; p0 U2 {. v
- (princ)
! c) x( P) L3 h0 q8 `% l4 g" h - )
) Z1 s L+ J+ Y! v( _ g - 5 }! y1 v7 ]1 X5 q
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle % c7 \. B# N! _# o; c T
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)# g4 X8 O6 g& G8 l, S
- ;-------------------------------------------------------------------
7 L; u/ r' p% b& H/ i - ; 获取公制外径大小、螺距总长
% H9 N" i/ {" v - ; 然后计算一系列几何点
6 z. z+ K% f# |1 C) D - ; 并且关闭对象捕捉、命令回显
$ ]8 W2 @! u" R& M% t/ H/ N5 m - ;-------------------------------------------------------------------
) |& _8 M! o8 V1 r% n, R - (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)) 9 ]5 Z. Z' w0 y/ g) S
- (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)) $ J. O' h2 e% s/ [( ]
- (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)) & B# a$ }. I1 r) @
- (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)) : l2 ^: }3 K0 Q
- (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)) + Y1 L+ k, h8 ?* O% @3 N
- ) N* z9 k* F! o! Y0 t! s
- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值! J* \( k0 W1 G2 E
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值8 O9 @, w: [. t0 y" N M$ o
- (setvar "osmode" 0) ; 关闭对象捕捉 i% H/ E5 |# z6 b2 h
- (setvar "cmdecho" 0) ; 关闭命令的回显3 y6 V" _$ b8 E( ^( k
4 L" x9 i1 P" b6 e- (setq innerdiafactor 1.5) ; 设置内径系数- T/ U$ b/ T# J6 I( n/ J( O& @+ D! l
- (initget 7) ; radmid 必须非零、非空、非负 K( h% i% |9 f0 m
- (setq radmid (getdist "
; a$ w3 w, J& f# i2 Z+ [ - 公制外径: "))
/ Z% e; y2 P( a! _$ C' d1 g& x - (initget 7) ; threadpitch 必须非零、非空、非负# K5 c4 L( ^! g4 J; e; L" v6 Y
- (setq threadpitch (getreal "
- H7 @8 _+ Q" B' N - 螺距: "))) ^9 \, `) e% m% v2 k
- (initget 1) ; ptStart 必须非空
" j& a& Y$ {# r8 K& @ - (setq ptStart (getpoint "
$ I( x& [2 ?8 v+ g& x" y( W+ v - 起始点: "))6 ~: C P. A1 G
- (initget 3) ; threadlength 必须非零、非空、非负
1 R8 v5 O( O% M% H4 x - (setq threadlength (getdist "
) f- x4 N% N, B - 螺纹总长(Y方向): "))
& S1 J! e( ~$ \ - 9 M6 _8 Q- E: m2 ^# j
- ; 对公制外径添加公差' r. [! Q N6 a7 z
- (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
) T/ t; H9 x) Y# a, K% t4 E3 f - (if (<= radmid 6) (setq order 1)
2 O9 U# p- M% c+ Y! z - (if (<= radmid 10) (setq order 2)1 \0 r P% _0 T9 j
- (if (<= radmid 18) (setq order 3)4 t( A+ `6 l p& P& T [
- (if (<= radmid 30) (setq order 4)
( H g4 ] G" A/ n f+ o4 F - (if (<= radmid 50) (setq order 5)
* H$ D$ J4 ]3 G$ J6 ~ - (if (<= radmid 80) (setq order 6)$ c6 P$ s" A! c5 S
- (if (<= radmid 120) (setq order 7)- E9 y9 ?( `* O9 O( Z5 _
- (if (<= radmid 180) (setq order 8)
0 A! s5 {8 ~3 s - (if (<= radmid 250) (setq order 9)% f2 L: ?; a. }
- (if (<= radmid 315) (setq order 10)
7 M: x+ |3 q K7 M - (if (<= radmid 400) (setq order 11)
7 Q" ?: c6 C8 z6 x* p& b - (if (<= radmid 500) (setq order 12)
7 D9 z8 c, n" D/ R8 e - )))))))))))))
0 H- O2 s5 ~/ H7 W! ~6 J
+ e3 A+ D+ { S- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
! I* G# ~7 Z1 f+ F) P) K - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))$ u; l% u! U% c0 i" u3 O8 Q+ \$ ]
- (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))( f8 w8 f g1 k) v) M( t
- )))
6 {3 Z- q5 i9 u7 Y4 X -
# z: A7 H( M3 L! S) D% t( l* S1 a1 G - (setq h (* 0.866025 threadpitch)) ; 计算齿高
* \' @0 e3 b" ~$ s. _! _ - (setq radouter (+ radmid (/ h 4))) ; 计算外径2 i/ f, U" _8 B) w# Z% Y" m2 ^3 R
- (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
" _0 _6 e! s! m* s& c! u* W: k - (setq threadangle (+ 30 0)) ; 计算齿顶角- o% o0 o7 o) a( c1 [: n! `: a& I2 j! q
- ( b* e0 t( s1 z( \1 G
- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数+ c. x5 Q" x- x. h2 u
- 6 L$ c0 s2 N, o2 }" g' k
- (princ "/ W7 x7 ~/ S4 O8 W
- 三维螺纹创建完成")' [# H1 |3 P5 ] Y2 A/ c0 K2 s
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值# D! p! C" I# _1 M# Y) l
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值. _3 T. d5 H' S9 t' x
- (princ)
% |3 d( H1 T- _% g+ V3 S - )
% ]. h2 o8 h1 ^6 Y& y5 u - $ a2 U. k c9 y: _. Z
- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a( Q# l- E1 }- H( n
- pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
4 @) @) ]$ v }* k& h& I- f9 b1 y - R- ]8 ]1 D" o. m& Y, g! ^- E
- ;(command "undo" "begin") ; 开始undo步骤% _7 `/ G2 v! u r" f# x- d
- 8 g: Y0 e) E3 w( X
- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)/ Y2 q* Y; o5 v- Y) d
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
8 Q& y* C" i( S) v7 E - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0)). e! F* i3 ^; z( \( {7 N
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
, v$ z3 F) J$ U) C- z - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))3 t$ S% t6 s+ Q( p6 U
- ang (angle pttmp1 pttmp3)! ]$ M2 M2 c% D
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
- b7 Y2 o1 W8 L- F" \ - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0)) \% S3 C6 j7 {! ~3 y6 k
- pt3a (polar pt1a ang radouter)5 E% U3 @ L# g* V2 D
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)2 I5 L5 v2 ]8 p* s6 {- G/ J! W
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))
& T* M9 M8 B9 D. I0 } - pt3b (polar pt1b ang radouter)+ E! W" c; K' _+ ?8 u. q- ^
- pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
% S7 H$ U8 I4 F - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
! ~; O. l0 A& p - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
0 a2 k: ]9 C$ f/ _ - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
: ^. W2 N' y; n; W1 ] - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)- H( ~. h( y' I" B+ R5 l
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)1 h5 I" K% t3 Y! Y
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))9 w% ? y# d1 U, ]( a* e* ~0 v
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch) ~4 S0 }' g% j9 v8 p+ X
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength)) M g7 B Q5 \% Q) ]. t* i! q$ p% f
- )+ Q) W" F9 w$ ^8 g+ w1 \
9 k9 Y! J. h( q8 M/ _/ ~- ;-------------------------------------------------------------------
% k3 Z: ^9 v8 [% d6 K) l8 y* m - ; 绘制两个倒置的并偏移1/2螺距的圆锥9 u" J2 H1 i) o H5 ~4 j8 D
- ; 这两个圆锥都以中剖面剖分8 z. Y, V8 {; u* D. q: x6 q6 ]5 d
- ; 进行并集运算
* R* [. c9 \$ a+ d' v/ l - ;-------------------------------------------------------------------" N4 X% l& z% ?4 y0 i
- ' F& `. D4 R Y5 Y7 S* ^' k, z
- (SETQ startcone "order")2 ]! i/ A2 ?& G$ a
- (SETQ endcone "Y")
4 h& Y' z: L# D3 m - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)& m/ n) Q: N( B! h+ [! U
( J9 {. Y6 ~* N! x# B1 s' O- (princ "
$ I r0 \8 s0 _5 H0 O. Y6 U6 J - 正在绘制三维螺纹，请等待")
2 R$ t6 v2 C u, P! a - (command "pline" pttmp1 pttmp5 pttmp6 "c")
4 ?/ c( k2 c! m; e - (command "revolve" "l" "" pttmp5 pttmp6 "")5 M: a2 i4 i- R% a( T; \ P
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)- j* c# P; R# }& \" v- i8 E9 _' H
- (command "slice" "l" "" pt1a pt3a pt1az pttmp3)* F; u) M: {/ T7 ]
- (setq tstmp (ssadd (entlast)))
( i: G4 |0 Y6 \ - (command "pline" pttmp3 pttmp9 pttmp10 "c")0 n" o! L0 Z& L! P5 o
- (command "revolve" "l" "" pttmp9 pttmp10 "")2 ?. ]7 M5 ^' x; p: N
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9). Q2 P3 y* b( k/ s2 ?# w
- (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
$ P$ E2 m; k( [6 N* B# a - (setq tstmp (ssadd (entlast) tstmp))% u$ R1 F# b. l) T
- (command "union" tstmp "")
( m3 Q- t) u" z4 s$ |% t7 q - 3 i3 q3 D1 H6 h0 v8 z% _
- ;-------------------------------------------------------------------4 c' q3 z/ i2 w
- ; 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
0 d$ V0 Z* A; g8 ?: y - ; 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
- T }$ q5 j+ D, \, X0 y - ; 在最后一步被切除6 u, {$ x4 Q# D: m$ z8 {# T1 Y
- ;-------------------------------------------------------------------
- ^. z: V# P: ?+ I# L
/ o1 r, `, o A9 G- (command "slice" tstmp "" "xy" ptStart "b")+ L9 d: N; K4 l+ e% B: F! p7 s# |
- (setq tstmp (ssadd (entlast) tstmp))
$ G# V. \6 o% D$ r8 m( c - (command "mirror" "l" "" pttmp1 "@10<0" "y")
% P1 E9 G9 C7 w* J/ e. ^. A0 X0 z - (command "union" tstmp "")
]# K. E1 S1 z; i0 p+ g
- G4 X! l2 h- d* e+ o9 ?- ;-------------------------------------------------------------------( [+ f3 B0 P1 B5 v5 W0 M
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）
5 k; g; @0 m& Z, x - ; 得到的实体再切除到指定的螺旋高度
, E3 F; S: W& m, [9 k2 W$ z; ? - ;-------------------------------------------------------------------0 a; c- v$ T7 f+ f
. k9 e/ M0 W6 c( P- (setq e (entlast))2 |" N) n& g; o( \
- (command "array" tstmp "" "r" ttal 1 threadpitch) G% O" a3 T. W% O
- (repeat (1- ttal)
o& b5 U y5 D6 g - (setq e (entnext e)" T( {. w' X/ D2 P
- tstmp (ssadd e tstmp)
% Y0 L* i! o0 W& K, B - )
4 w/ G) }$ ~. q$ F- L - )& P- k& T# L) F- C' o. V
- (command "union" tstmp "")+ C; r2 I& Y) U" Z
- 7 ^" ~4 o+ T" j P% w" Z* \: l
- ; 若开始创建45度的圆锥" U4 h* T7 Q/ g z
- (if (/= startcone "order"): g1 p5 K' d4 Z% H% J1 e/ ^
- (progn (setq e (entlast))
& |# q+ f2 }8 y& P9 e& R - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
# S8 Z7 a2 h4 \5 s$ j5 h) F' z3 R - (command "union" "l" e "")8 _1 P2 S- c" @; L s7 f
- )
& m; n) `/ a/ b c3 t$ ? - )( Z# M% m3 E% H
- % V, W2 b s# u' r& e% n0 I( E
- (command "slice" "l" "" "zx" pttmp11 pttmp12)
" l# G# X; g Q7 A2 b5 _- Y% F - (command "slice" "l" "" "zx" pttmp12 pttmp11); Q4 Q* K6 W* Y& h( T
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) + _4 I; A6 s2 u6 z7 v
- Z% ?& }+ J' H7 n4 f' N3 B- ; 创建最小直径的圆柱体，然后与螺旋作交集2 k6 f% W0 P- K1 V% w
- (setq e (entlast))) ]7 r* D2 s5 L3 D/ b1 }$ x5 D
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))5 l; r4 h* {8 ?
- (command "union" "l" e "")
! \% d: ^5 H W% Q8 l - (setq tstmp (entlast))( \2 C( B; p/ F! R
# E1 h6 X+ F2 F/ U- ; 创建中空的圆柱体( X- |' d' _6 E
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia$ M+ ?4 {0 [6 F, u Q# o( n; W" G
- (setq e (entlast))
5 @/ m" z) C$ P
7 y* f2 T6 z& E# F- ; 若最后创建45度的圆锥
8 }. { b# w4 r5 A) d - (if (/= endcone "order")
" d) c4 a; @" a3 l, G% q9 ] - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart)))
9 O5 r9 `: n( ]6 S$ w! K9 E1 B; d - (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) * ^. j! K- V7 L* |
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
) ]- N/ m& F }3 y - (command "union" "l" e "") 8 O( k' h& ?, \/ ?' @7 N
- (setq e (entlast))& N* s @- y# R8 w; v% A& T, H
- )1 w! J& x# E# p4 ~$ H9 C! K
- )
) q( u1 ~" z7 r3 J- B, s
1 s, T4 ?' F8 }( i% T H. k( E/ I- ; 从大圆柱中减去小直径圆柱
8 T1 y, ?2 R) a8 ~9 H1 m - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))# T1 V' H: S8 T% V. c" c7 e; @
- (command "subtract" "l" "" e "")
4 e; B1 G8 N% E7 h - (setq e (entlast))0 k6 F! I( z# M/ B' g4 F
- 9 Q. H: l/ M4 @ i/ ]8 q$ [: z
- ; 从螺旋中减去圆柱
) v D& Q# w3 J( n: F( I% L M& C( W1 h - (command "subtract" tstmp "" e "")
* M5 }/ B3 Z! d- ^ - * Y; r) X9 a3 Z
- ; 如果螺旋长度为负然后镜像; j3 o9 `: f. B' l2 J/ ? Z( j5 v- ?
- (setq e (entlast))
: `3 B8 x4 M9 n9 g! T8 A) V - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
( y6 {% {9 h; ]' g- R - ) t+ a2 [0 M1 L& r; @, a
- (command "zoom" "p")
9 D8 M$ m) L$ ^/ ?8 t7 n! u2 w - ; (command "undo" "end") ; 结束undo步骤
8 e: x& H% e: k0 ^4 a/ b - )
. }0 V0 a4 ?( x I# o2 H3 w - 7 Q/ D4 Z1 d( T+ U; q. j6 f% F3 {, H
- ;;;---------------------------------------------------------------------------------------------------------------------;7 u. v+ T$ n7 }, E, c
- (arxload "geom3d" nil)
- T6 v% q3 ?+ L" f: [ - (princ "* S. f& H% W3 X; v( V6 q1 X
- 3DThread 已加载。 ")0 h3 y! \7 H$ n W7 @
- (princ)
9 j( r* w5 q+ ?! T: M0 Z
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* y; W/ [( o6 _- @三、弹簧源程序/ ?' c( s2 t) t3 l
- (defun errMsg (s) ; 当命令执行时出现错误 , p( y- J& [5 \4 Y' ^( d8 J
- ; 例如用户按下了CTRL + C' p. D# n: l- x+ j8 u* Y9 j' T" K
- (if (/= s "Function cancelled")5 F5 V4 \. G' ?9 j+ V- r
- (princ (strcat "7 f9 i1 ]$ ^7 k$ L1 g! X8 d4 @
- Error: " s))9 c. z* ?+ @1 M3 w
- )
% ^. z/ M5 m# O2 l9 O0 {6 s2 j - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值6 A' a0 C9 W2 r/ _4 ]
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
5 D0 ?/ C- W8 w% S3 |5 j2 h0 v - (setq *error* olderror) ; 恢复旧的错误处理' W7 e; T8 a9 |" ^
- (princ)' q5 S* g/ J+ V. F
- )! [' H: P k/ S. y: @& w4 g9 h4 W: O
: ?- x* a' A1 ^/ q4 l- (defun spring (nRepeat cntPoint bhfac lr strad bvfac7 E$ |4 j0 M9 `" f+ Q0 V1 q! f
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
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- (setvar "blipmode" 0) ; 关闭 blipmode ( t# a5 F* C# r% i) }
- (setvar "cmdecho" 0) ; 关闭 cmdecho
4 |4 i$ T$ S, R. Z6 Y; N, M3 c# A - (setq Pi2 (* 3.14159265 2))
5 W# J h8 Q/ }- A9 y2 i - (setq aGrw (/ Pi2 lr)); L/ Y+ ~2 w7 {1 i* D, x$ h4 ~) W) e
- (setq dhGrw (/ bhfac lr))
H$ E1 ~6 m! _+ g0 R) K0 C - (if bvfac (setq dvGrw (/ bvfac lr)))
7 C6 D+ A/ J6 V7 T# E) Q; q - (setq angle 0.0)
$ w1 D+ Q6 P% f7 m) g - (if bvfac& {0 B" \! ^7 \5 u2 @( N$ @, h
- (setq distnc strad dv 0.0)4 w% j4 L: `3 {" A' i
- (setq distnc 0.0)! I- i% \; V$ y/ b8 O
- )
; Y5 O2 x* W5 ^$ l) |! h - (if bvfac 5 l: c: `1 o3 [5 h, A% L
- (command "3dpoly") ; 开始绘制弹簧4 t; j: i1 G. P/ T
- (command "pline" cntPoint) ; 从基点开始绘制弹簧
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- (repeat nRepeat
- l0 r( ~4 Q$ C; o% _: Z, M - (repeat lr 4 `! m- L' J" d7 K0 F
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))
" I7 m }; Z7 W0 U& [( |! Y+ W - (setq distnc (+ distnc dhGrw))' v* G( D" Y7 t% u4 j# b
- )1 B6 q; ]3 R4 H7 [" @; j
- )9 e1 X# S p: o2 J# Y0 i- u2 y! _
- (if bvfac$ e0 A9 o1 n' f( \8 N: y
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
5 X) T& f H3 s$ `. K* O3 d - dv (+ dv dvGrw)
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, |5 b1 `. w5 L - (command tp) ; 继续输入下一点
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- (command "") ; 输入结束
, @6 ^2 @7 t) R- t8 u0 C3 b8 ~ - (princ)
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+ i+ S: a1 t: ?' ^- ;;;
) _- {3 S# ?/ `" p- u4 R - ;;; 生成三维弹簧函数调用接口
D4 f3 _; O$ |" q3 K, r" F T" G - ;;;; c: D$ b9 O# W) V+ U8 z
- * Y' n L6 W! h: P2 l- U) R
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) 3 l! p& _, j( ]9 n$ O {
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
8 f& X A2 b2 ?4 s) D* s - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复$ v" M p' A8 y/ x0 I8 {% O+ z0 m6 J4 r
- (setvar "cmdecho" 0) ; 关闭 cmdecho + _1 z3 {5 Y8 ^& z. q
- (initget 1) ; cntPt 必须非空/ Y W# H5 c$ ~; |% D, j) k0 v: t
- (setq cntPt (getpoint "5 q$ T0 ^4 V- O- v* C% F9 y
- 请输入底部中心点: "))
3 }3 p$ ? P- { - (initget 7) ; RottCnt 必须非零、非空,不可忽略
' B9 K. {8 m. G% c) b2 f8 X - (setq RottCnt (getint "
" e( e3 y' k( F' G3 Z5 e6 N- [ - 旋转的圈数: ")), Y, _1 `: I8 c5 U1 w8 p, K
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
9 k4 J. G+ b: ?4 w - (setq bgnRdtn (getdist cntPt "% G: v7 l9 r# j1 ]
- 起始半径: "))
% j Q2 ?4 a: a5 f$ X& G - (initget 1) ; cf 必须非零、非空8 d) G* L* b! c% \/ T, B2 c
- (setq horiGrw (getdist "
8 C& t9 A5 @) S/ F3 s) ?$ o. E - 每一圈的水平增长距离: ")). f9 i1 P: V. u' D2 r. B3 V% h. F, V
- (initget 3) ; cf 必须非零、非空
. ]5 F# e+ M1 V - (setq vertGrw (getdist "
_) d! l+ H3 L# a" {# @1 { - 每一圈的垂直增长距离: "))
5 E: n% P( Y) L1 n% g5 O - (initget 6) ; ptCntPerCircle 必须非零、不可忽略9 e# t1 ]" u# z, t
- (setq ptCntPerCircle (getint "$ U& ^9 r3 r2 B- @3 l
- 每一圈的插值点数<35>: "))
& Q+ P! J$ C# R7 l. q s - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) 6 `- t# h. z8 S6 J% g
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
% N* o5 u' } _+ M0 ?7 S - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
: R J1 ^$ y" k% I; p% C( z' x7 i - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
( t. l9 o9 c; `9 k5 J1 b1 @ - (setq *error* olderror) ; Restore old *error* handler
+ y$ @% P( ^; z @7 J. g$ k* Z - (princ)
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- )
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
