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2 w$ O5 ~# y6 R: _+ |
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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! J- ?; l/ b: L2 [7 J" s
一、齿轮轮齿渐开渐开线
; o. q. ~7 y4 z7 g% _
, X0 e7 ~# ] h8 n8 s- e- (defun c:gear(/)
& C- k! {* K) g( i8 v3 p" } - () R$ F, M! ?- M8 C9 T& z, g
- setq
( w8 z1 {2 e2 r0 v" h0 A - p0 (getpoint"输入齿轮中心p0: ")
, `: j$ Q4 T* a& U& D7 p6 j6 C - m (getreal"输入齿轮模数M: ")
2 w8 F' F: ~! T' `: f" d - z (getint"输入齿轮齿数Z: ")
' \9 h/ ?& L9 d' C - ha 1
# N0 c3 ?, h7 H* }% n8 K: N - c 0.25
/ F) T4 N4 x$ Z8 U. w - a (/ pi 9)) X: w2 {- u. \. ^7 X
- ra(/ (* (+ z (+ ha ha)) m) 2)
3 Y& g2 N, j h1 A! s# q - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)6 t/ c( V* |7 E: z/ [4 K [
- r(/ ( * m z) 2)7 `, y7 e, }, ]- b
- rb ( * r (cos a))
& T, v! g/ J- ? - ri rb& S- J) l) s" e6 ]! D; t. [
- ang 0
# J; ^6 b6 \' E6 b - g (polar p0 ang rb)
$ W: Z j/ k' v - ), e/ \. G7 @. P- K. o8 H( n6 b
- (command "circle" p0 ra)
& E% k% d" y. ^# A( o - (command "circle" p0 rf)
& f* n5 _2 M' } - (command "circle" p0 r)' I- {: \' H u* E% u; m2 H! X/ r( B
- (command "line" g)
& X5 w3 t8 f7 x3 K1 c9 U1 q3 J -
- T2 ^) j4 S& T" r7 u* N0 j& n, I - (while (< ri ra)
4 @, ~$ h! `; y5 L - (setq# h2 B8 ^2 R" i, h
- ang ( + ang(/ pi 360))( E$ n a: e9 l# B
- ri ( / rb (cos ang))
2 A! ?2 c2 k% A6 v5 e5 C0 J/ K - cta ( - (/ (sin ang) (cos ang)) ang)9 \" w# A3 X2 X- L j: ]2 Q6 f
- g(polar p0 cta ri)6 G8 h( j3 \3 h8 m
- )3 g" E# D+ {& W( R0 d* ~
& g( C' R( Q' V9 f @- (command g)) b& I: M8 z( Z2 w; _
- )6 R* f: [# r& R
- (command )
- u9 F1 x5 n( d) n9 w& H - )
8 `8 D9 `# Q+ j2 s
1 m; G, k7 l/ O$ L* `2 j# y
8 J' N/ g% v n; T x3 A0 ]4 ^( r- A' H) K3 q: ` ^" @
二、螺旋源程序4 E" P5 Y% I4 f( u' c7 n
' ?( t2 l- Y2 ~- (defun errMsg (s)& |( ?1 N) q7 S+ _
- (if (/= s "function cancelled") (princ (strcat "4 M8 w$ q) }% V `8 q9 [) r
- Error: " s)))0 ~) z- c% }9 w/ h% T1 R% x
- ; 当命令执行时出现错误
& S0 g% T( v: ~* S4 [- h! Q - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
2 M. U ]1 M4 R' v0 Y - (setvar "osmode" osmold)
0 F: K9 o( i" V - (setq *error* olderr) ; 恢复旧的错误处理8 K/ \: K" d! H2 I, F* y3 ]
- (princ)" k( O7 u7 @( X* m, W) r, s3 I# J
- )
( o6 x4 z* U' W) o
' B- O, h/ {3 V1 j/ L0 H, z" B, s- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle
3 y4 N* g! ~, L! j3 G - ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)5 e) C0 K& `- O. e8 L$ v( j2 @) y0 S# v
- ;-------------------------------------------------------------------
7 u; @* z0 k4 Y0 M+ Z - ; 获取公制外径大小、螺距总长
' I% U* i# g5 |8 f) _ - ; 然后计算一系列几何点
4 ]: ~$ D( L- [) H$ V& K& U - ; 并且关闭对象捕捉、命令回显
+ j0 D- j6 ?& ^! R - ;-------------------------------------------------------------------+ }3 ~3 v7 c# |$ ~/ O
- (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)) ! B6 Z5 M1 @% `" r6 n
- (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+ i* n5 K+ j1 k% k3 C- W' D/ i - (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)) 2 Q+ O# K% L& D
- (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)) % B: ?0 U# s) M; S
- (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)) ; H F; j( J& }, e: I$ e0 ]
1 K, `( K. D& P& o- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
2 @/ Q, \. K# y: W8 L- {' t - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
7 l; Q2 x) I1 [& K+ i5 I( J - (setvar "osmode" 0) ; 关闭对象捕捉 . ^ C. w7 t1 H" ?- b
- (setvar "cmdecho" 0) ; 关闭命令的回显2 K* [$ \; Y7 e# T' L0 Q
- % h) x* K" M7 a. B0 L% O( s
- (setq innerdiafactor 1.5) ; 设置内径系数
* h& |$ m. U' |2 T( ]9 Q - (initget 7) ; radmid 必须非零、非空、非负
+ W' x' }/ Q; }) \* h' J# k2 H - (setq radmid (getdist "
- I, u2 Y4 Z5 Z+ t( E - 公制外径: "))
6 u q& ~4 |1 J) {3 t$ V - (initget 7) ; threadpitch 必须非零、非空、非负% k( N4 P+ z2 O, B
- (setq threadpitch (getreal "
( M6 }# [. J$ g. `& W. c" B - 螺距: "))
0 k% ^1 V0 p" l - (initget 1) ; ptStart 必须非空
* h: Y2 z& Q# R- m* ~ - (setq ptStart (getpoint "! _! c# u' q) C
- 起始点: "))
7 o# Z& T0 a) n* n5 D5 K3 E - (initget 3) ; threadlength 必须非零、非空、非负
' T- @6 ^; H8 ] D$ @ - (setq threadlength (getdist "
( J& m* b/ F9 c6 s x1 ^ - 螺纹总长(Y方向): "))
) V8 i) t% {% L - + \, W5 r3 P# A7 L1 h
- ; 对公制外径添加公差
" q$ x8 p* B* R$ J' w" I$ Q - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置+ v* r( K W4 Y' n- @0 E% N9 J& |" m
- (if (<= radmid 6) (setq order 1)
- N( V2 f5 D& s) q0 C - (if (<= radmid 10) (setq order 2)0 F+ z' T, k E; f4 Y2 b* _
- (if (<= radmid 18) (setq order 3)# z5 X5 o% l7 I: B6 c/ \, j
- (if (<= radmid 30) (setq order 4)
$ h9 q1 @. t$ q - (if (<= radmid 50) (setq order 5)& W. ?: A8 w/ _
- (if (<= radmid 80) (setq order 6)2 o( N' T3 j% g# R" F6 x0 X
- (if (<= radmid 120) (setq order 7)
& l6 V4 w7 r! x3 O2 e- ^" m - (if (<= radmid 180) (setq order 8)
0 M, o9 l5 ~2 Z! o2 l! F - (if (<= radmid 250) (setq order 9)' [0 s* W7 O% M. i$ ^. G
- (if (<= radmid 315) (setq order 10), V8 w5 a y. ~) B% W$ W
- (if (<= radmid 400) (setq order 11)
6 t) q V! `7 N8 b3 I* q/ Z - (if (<= radmid 500) (setq order 12)- g' u9 |) E' Y1 h
- )))))))))))))' b1 I2 p% u' a3 o T: p5 {1 o/ q. t3 ?
0 \/ W6 @) }' i1 k" t9 a( [0 p- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
9 h; k. i7 | s- c+ a% a - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
# D. [" D: d6 ]- _ - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))7 B: h! O0 b* t1 N
- )))9 y" Q: j# k! R# E5 j9 ?, D6 P. M
- 3 e" |; X' n% J x) \
- (setq h (* 0.866025 threadpitch)) ; 计算齿高7 F' M2 H% V A, f& x6 q$ D; I
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
+ V6 c4 H( d% { - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
' u6 s6 {/ m0 g0 l; F8 W - (setq threadangle (+ 30 0)) ; 计算齿顶角
7 S# e z9 I$ Y4 S
. }: A0 E4 V; x! v$ k8 h0 K- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数' |3 @ c& y' W& W
& a8 e5 X8 U, \% i* {% Z# q% U- ~- (princ "8 j6 g$ J# K7 o2 _
- 三维螺纹创建完成")6 P' f" e0 D1 n$ N/ }& h
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
3 I6 _2 I3 B; ?# N3 a0 H1 ] - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值) Z: I0 M$ z* b: P" B/ s
- (princ)
. G! F7 e, D5 u - )3 s f6 E- n7 |* C9 z
" k) @. {+ X9 l& w# p# m) J- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
" C4 u. c8 R" e& ^/ p0 S# s, Y - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
: N/ h# e; ], _) R$ e+ s - \+ Y5 U7 v% z: T1 l% a
- ;(command "undo" "begin") ; 开始undo步骤
9 b0 ?4 N" b3 v! b: T' X
( x K+ m, \$ J G5 P. e) X8 x; Y$ {- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)
! _5 x) ~% F5 g - pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
* b% I7 k/ I# U9 p - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
9 Y( B8 m3 ]2 ]& c - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)( V% S$ |6 C' u/ s* g" q: I( [
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
_3 Y2 K S! A - ang (angle pttmp1 pttmp3); {2 B. L% S$ S
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
6 W; u+ o) ]% [- H' B: B' w* F - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
# D6 w, U; @4 @# w* k* R3 y - pt3a (polar pt1a ang radouter): D0 ~+ d! U; l+ e! o
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)8 v7 P5 _2 q* P0 z! @& l$ z
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))2 Z0 w% { N4 n& E2 |
- pt3b (polar pt1b ang radouter)2 L4 A# L1 H+ d3 z' G) y+ c) G
- pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
' h+ }( U* R5 |* C& x - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)' G3 F5 |% a+ w' K2 T, o
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))- i! _" H2 U* |4 S; X7 J& Y" P
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)+ w/ l( o6 f1 R( o, {
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
% M o* \% d* ?8 { - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)& [* v; Q, n+ T" K8 Y) i
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
# f* D/ L. {' B' S2 y' b - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)1 U6 T2 I* Z. J+ q
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
/ x l. B: z L8 C* O - )6 \) A" Z0 H4 X2 }, \) M$ N) @: Q
- + c$ ?( F+ R* N1 ]" q9 K
- ;-------------------------------------------------------------------2 q+ P, R1 P& W' r- G9 n0 o# D+ H
- ; 绘制两个倒置的并偏移1/2螺距的圆锥3 ^4 `5 l% h" w+ { E' T
- ; 这两个圆锥都以中剖面剖分
1 ^, W0 \% f) m: q6 p - ; 进行并集运算; ^1 `* n: w: I6 M, |
- ;-------------------------------------------------------------------& M9 Y9 _: g& W2 ]0 E* I
) t" P- m$ l3 a( a. H; V9 o. m- (SETQ startcone "order")
4 b8 c8 d1 B+ F9 u. S3 l) U+ M - (SETQ endcone "Y")7 h$ y! R4 t/ R0 Z+ `3 }4 r
- (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)9 a* U; h" n" B+ f& q$ t
& { W/ E: c0 I5 r1 A' z- (princ "& ]3 M% [- E3 e1 B% k S: L
- 正在绘制三维螺纹，请等待")
" N, j" F$ W* H/ ]3 y - (command "pline" pttmp1 pttmp5 pttmp6 "c")" g* I: m. i. F7 Q0 {$ A! W
- (command "revolve" "l" "" pttmp5 pttmp6 "")# N, a, P2 V7 H0 J
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
8 g" `/ i9 j( G8 U4 U2 n5 T - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
' C. [6 l/ P' w' r - (setq tstmp (ssadd (entlast)))6 t8 z) X: I; }% Y& {4 i/ f2 h
- (command "pline" pttmp3 pttmp9 pttmp10 "c")9 |! O- g/ E$ ?' [0 |4 w
- (command "revolve" "l" "" pttmp9 pttmp10 ""). J/ x( a& z* J& p) j4 S6 f' d' W. H
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)9 _/ K4 {, C8 Y
- (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)& t, t/ K* e% V; C# q
- (setq tstmp (ssadd (entlast) tstmp))
& B2 g4 D C# ^, e+ n - (command "union" tstmp "")/ g; Y* Z: W8 c* Q: \/ u; ?# T
- 3 F8 O7 M; r. \$ ?% ~7 b* l$ c
- ;-------------------------------------------------------------------! p# P5 U3 N" w Q
- ; 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
: P+ z6 y7 ~" ]! {6 r; S& |& q - ; 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
" g- F8 i- |' C5 u z, x/ L0 w - ; 在最后一步被切除
! E: E9 l& l2 \& N; ^: z% `/ _ - ;-------------------------------------------------------------------1 @1 ^& L- M! o4 u* Q. [
- # F4 Q% O1 V" i+ X) V
- (command "slice" tstmp "" "xy" ptStart "b")
3 O; k% p* f9 o: |4 H0 p - (setq tstmp (ssadd (entlast) tstmp))0 Y' s! N, \0 [- w& }! y
- (command "mirror" "l" "" pttmp1 "@10<0" "y")
]% l- j2 v* I* O - (command "union" tstmp "")0 _# _3 u6 a8 Y4 E6 ^/ t
- ~) J' `2 R! o# \- L1 `1 _2 ^
- ;-------------------------------------------------------------------
+ u9 m) @' Y9 }6 ]2 P6 L7 t - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）; i- d2 G- O4 t8 C
- ; 得到的实体再切除到指定的螺旋高度
/ k' O; ?- k2 B' V& R+ B) ] - ;-------------------------------------------------------------------
8 M' c$ x+ S) M# i
% O" ]" v) I( B* V) f& l1 G- (setq e (entlast))
0 {! b* j# l! z m! \4 I - (command "array" tstmp "" "r" ttal 1 threadpitch)3 p1 e$ U( X- w* h, w
- (repeat (1- ttal)
" g7 G4 T, V3 G& A g- j9 v - (setq e (entnext e)
9 r6 I3 E' j- V3 Q5 G" y - tstmp (ssadd e tstmp)
. y3 X* \! [- O. z c. v) H9 g* e - )
* V% O) V: Q6 [2 `9 L5 ?& I2 S+ B - )
, w, C6 e2 u6 w) c) S/ r) p1 | - (command "union" tstmp "")
& ?4 N) c4 S$ A8 c$ M3 _ - + e1 p; N9 T' D- i% j3 i; P. G8 a
- ; 若开始创建45度的圆锥& }- G) \7 ?% I) t, G! |
- (if (/= startcone "order")) F/ N/ n( o% S1 L' I' A
- (progn (setq e (entlast))3 Q5 E d) p& V1 j! Z. C; T2 k q
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))! ^; ?9 h- B6 @, T8 C
- (command "union" "l" e "")" D. t f N/ u, W
- )
. f$ X6 W0 r- I1 L - )
! ]3 }$ L, ?/ c8 n
5 l& y7 ~7 q* [$ a- (command "slice" "l" "" "zx" pttmp11 pttmp12)6 S6 ~( r X& Q$ X* `
- (command "slice" "l" "" "zx" pttmp12 pttmp11); U, j' i* M+ t. X
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) 9 H+ b+ I, ^: d# w
1 j! d1 Z8 W4 B! u- ; 创建最小直径的圆柱体，然后与螺旋作交集: n" x" e: q& i8 m, A- M
- (setq e (entlast)) J8 v- n- {$ k4 W7 t W+ z
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
. v, z1 W% h7 |% b' q2 d6 W+ { - (command "union" "l" e "")
1 x+ J& i/ v3 f, S1 L - (setq tstmp (entlast))
; L; F0 {6 M$ m: f* f7 D
% X5 ~- G1 U( o; {: A7 s( v% p- ; 创建中空的圆柱体& C& `" c: h9 o- G
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
" |4 ^1 L7 z, p. w! d Z2 w - (setq e (entlast))5 C' e4 O+ ?0 U: h
6 M# L2 `. N7 J4 l$ U- ; 若最后创建45度的圆锥$ h3 f3 }0 j% G6 R
- (if (/= endcone "order")% g$ X6 l; j4 @ C. o( h8 D9 Y
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart)))
: Z$ c& W* w: W% | - (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
^9 j7 X4 v) [$ _2 i7 w* S3 o - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))9 r5 W! ^) j2 D W% R) u7 ]
- (command "union" "l" e "") 0 K7 h j; r3 F7 z) |& `
- (setq e (entlast))
3 L" }# p: S, o5 e" W! r: [! g - )
5 W2 D1 s8 s4 [5 [, P - )1 ?$ c1 K0 J1 C# ^8 ^ m: U7 S6 g
- ; B1 J- P6 S" ~# M- `3 M+ ]
- ; 从大圆柱中减去小直径圆柱& d( J+ Z |, \- l5 ^ w
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))) w$ `/ |; ], n. j7 S8 _
- (command "subtract" "l" "" e "")8 J2 D$ e6 r! X7 F
- (setq e (entlast))+ t8 d% Y; S Y: k3 ?% C
- " K# Q _( }, S) t K
- ; 从螺旋中减去圆柱
O% y4 N- b4 o8 O4 i - (command "subtract" tstmp "" e "")) }4 Q/ l3 W1 R X2 O. _
5 Z6 A) D1 k$ t9 O- ; 如果螺旋长度为负然后镜像+ F7 D0 v! V& Y' @% J
- (setq e (entlast))- L4 d$ ^* ?0 {
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y")), V/ t, u1 O6 G9 l/ q
- & Z8 d2 Q/ `8 {# Z2 t& X' J% t; x5 @
- (command "zoom" "p")7 n: Z1 J* [; O8 m7 Z% y
- ; (command "undo" "end") ; 结束undo步骤( }9 E z1 M/ i
- )
4 L0 o/ _# ^. ^9 Q& b! d5 _- y - . ]6 ~2 ?1 E" c7 J _, h
- ;;;---------------------------------------------------------------------------------------------------------------------;
' a% @; A6 T0 k - (arxload "geom3d" nil)
* a% R$ B+ L# T+ s% x$ E - (princ "
4 t- T0 R6 d2 [* F$ Z) |: q5 ^3 k+ q - 3DThread 已加载。 ")
' A( }0 f' c7 v4 a# v! X* x% |, ^4 L h - (princ)
/ J/ G4 f' j- t5 X6 J. L
5 _4 Q7 b m' O4 t# M L0 C
6 }! E+ k- C& A" K" C8 ]1 M三、弹簧源程序8 _9 D d& _$ _4 ]5 O: L
- (defun errMsg (s) ; 当命令执行时出现错误
+ v8 M! C( O2 E1 o; n' ^! { - ; 例如用户按下了CTRL + C' |% P( t. g8 \* B' s1 H
- (if (/= s "Function cancelled")
5 |! F/ ]' I% l; i$ q - (princ (strcat "- i$ d8 \- y+ n( {0 m, i& u3 w8 n
- Error: " s))2 }; l4 x. L) |# B% w
- )1 w" L; @/ s0 r) u% s4 W: W* D
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
9 g( S* B4 C6 d4 k1 [* N" K% g - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
3 r( z# j. i: J9 Z7 e$ E( [ - (setq *error* olderror) ; 恢复旧的错误处理' \# z5 x, l2 L1 A& v
- (princ)
' Y9 B" r4 S: r' Y5 x. X - ). z6 O7 ~ ^( h0 z7 Z
- 8 {% v! E( I- m( H8 p/ |# e* J3 d J
- (defun spring (nRepeat cntPoint bhfac lr strad bvfac3 \& P8 ~ g. K0 O5 J6 e# }
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
/ I: ~' q" ~+ l: p8 z
) ]6 `; g8 x8 o) ]# t- (setvar "blipmode" 0) ; 关闭 blipmode
9 ?; {" C- i4 F( X' B0 R" u - (setvar "cmdecho" 0) ; 关闭 cmdecho( b, V& m$ j* t! c D) d. G
- (setq Pi2 (* 3.14159265 2))( H2 l; w* I( |# {% e" W: x" \1 M
- (setq aGrw (/ Pi2 lr))
, { T/ o2 I& t1 k - (setq dhGrw (/ bhfac lr))8 o: `, O) r. P1 C" }8 ?; {
- (if bvfac (setq dvGrw (/ bvfac lr)))) n+ U. j+ L4 ?+ Q* g
- (setq angle 0.0)
. J7 g+ v! u$ I1 ]& M: D a - (if bvfac6 v& e( ]& @. V5 j! }- A6 O
- (setq distnc strad dv 0.0)5 X$ u2 G! i8 ~* Y: H
- (setq distnc 0.0)
+ Y8 Q% _/ o3 @0 G$ F% C - ) j# @- H7 B& M
- (if bvfac
4 d1 b8 M2 b+ O) K, { - (command "3dpoly") ; 开始绘制弹簧 k+ J2 s* x1 R) a: Q. [
- (command "pline" cntPoint) ; 从基点开始绘制弹簧
6 \& _3 `7 r) a: L2 y - )5 f3 B" T7 P! m
- (repeat nRepeat : p$ X' R& P8 B, F4 w) {
- (repeat lr & ]# `* f, T7 r4 Z
- (setq tp (polar cntPoint (setq angle (+ angle aGrw)), k: V; s0 L0 [! O+ d! P8 O! @
- (setq distnc (+ distnc dhGrw))8 z! U, [ J D1 k( j; x! n/ Q
- ): g; X. N7 q- h7 k
- )
" K) E, `) N7 T* l5 M$ V& ?8 Q - (if bvfac
8 F R" B5 E# ^. ]5 n8 I - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
+ h9 C4 f2 Z& @ - dv (+ dv dvGrw)8 L: u. {' j, a4 a, @7 q. ~; b3 l
- )- Q7 s9 Y6 _3 S" L( K5 T' Z
- )
% H8 [/ R. F% T2 s* g( I - (command tp) ; 继续输入下一点, |5 U) X0 A2 s$ J$ G
- )* j3 L$ q; z- X
- )
4 C* Q T. K- G( F { - (command "") ; 输入结束
; y% G& Q& N9 ^ - (princ)& z( ?( v3 o; {: W3 z
- ) , _+ @( Y2 t7 A4 A0 ^0 w
- : C: s) F# r0 a- ^, I, v
- ;;;
! W0 I, i0 `7 F - ;;; 生成三维弹簧函数调用接口
9 t2 ~9 a0 V( {0 w7 O# E6 | - ;;;
) P' t9 ~" R. C2 P1 i' F$ f3 }/ V
* ~& @, K+ u6 z- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) 4 w2 F8 K% c& c/ Z. }; ]
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复) i: I3 T/ @7 j
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复0 L. h5 U6 |0 _
- (setvar "cmdecho" 0) ; 关闭 cmdecho ( W6 l3 ^ [$ H5 N8 f& y& ?
- (initget 1) ; cntPt 必须非空* q' T0 h! Y' z9 N% i
- (setq cntPt (getpoint "
: h9 _2 z# `, {( P - 请输入底部中心点: "))
, r% S- f$ Y M, v, S+ U - (initget 7) ; RottCnt 必须非零、非空,不可忽略
7 T) v1 h9 ^, ~% L) J$ O - (setq RottCnt (getint "! t! u6 [; B. ]! d
- 旋转的圈数: "))1 x0 ?* ]/ M, D
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略* @# [4 B' _) b$ |
- (setq bgnRdtn (getdist cntPt "
4 E# M1 _; I3 S6 e3 B - 起始半径: "))8 @+ K0 z. Y) z4 X
- (initget 1) ; cf 必须非零、非空& U0 v; F8 z; m/ {
- (setq horiGrw (getdist ". X, y% ]5 Y9 s2 T# `
- 每一圈的水平增长距离: "))9 t! N/ D( |7 Q$ i) C. Y2 p) Z& {
- (initget 3) ; cf 必须非零、非空* x2 d; P2 ?, U: D' b# y+ C
- (setq vertGrw (getdist "
& ]9 k% C5 Q& G) I7 h. [ - 每一圈的垂直增长距离: "))
$ t" h$ L: U* [0 u2 K - (initget 6) ; ptCntPerCircle 必须非零、不可忽略7 i4 I& }* A. K( {3 j- B% E
- (setq ptCntPerCircle (getint "
; `( A" w1 e0 W" S" o - 每一圈的插值点数<35>: "))
% V/ `% v) A" r# e - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) 2 t/ Y/ f% b/ }, e0 @) l9 r
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
( ?. `/ Y/ u. C% D - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
+ J5 F: F; T0 }5 b& _ - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
, N% P% _: }7 ?" x - (setq *error* olderror) ; Restore old *error* handler
* G+ x4 w. n% h$ a5 p" Q# P - (princ)
; w1 T- K; B. F* s o" Y/ M
4 {! ?0 R! w% z, ?- ) + X$ n0 E2 |. n9 @, [( R1 \8 H
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
