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9 [! i# n8 f Z9 l; J, L3 h
8 i$ _/ M! @( ?$ f- V9 k5 i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：7 Z/ [1 I1 R0 U c i
一、齿轮轮齿渐开渐开线3 `3 _/ l% [/ l% o l) {. ~1 H" s
0 p y- G1 T! ]+ F5 S- (defun c:gear(/)
6 m. V3 v- C( Y5 w s& m' f% P - (
7 Z+ R- o; w" O: p+ C) b/ v# Y - setq) l; J+ k9 _' S7 u9 w% q$ q
- p0 (getpoint"输入齿轮中心p0: ")* p& m! w, |( ]1 Q/ c: a, i& b( x c- l
- m (getreal"输入齿轮模数M: ")
4 P% Y N2 M6 s# ~: w7 U$ _: ] - z (getint"输入齿轮齿数Z: ")
6 r( T0 U2 S& d$ R - ha 1
& B5 b" j5 k! r8 R$ ?! k5 _: l - c 0.25
( `1 e1 O1 k1 F* I" {! G2 ` - a (/ pi 9)
; g8 Y5 Z2 }0 }2 m - ra(/ (* (+ z (+ ha ha)) m) 2)
6 @0 ^* E+ C8 O& n" } - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
# b; |2 H$ o7 `: X& a - r(/ ( * m z) 2)# A$ v O; Y& `; E% O
- rb ( * r (cos a))! a8 V0 V/ h; H7 C. e
- ri rb
7 n7 ?8 {9 C; a2 k' \ - ang 0( v& ?' a# h9 m( W1 n5 F* A8 I
- g (polar p0 ang rb)
8 a: p* c2 M. z: {+ X* w7 A- G2 m - )
/ y, l* q% `# X- L0 M- @ - (command "circle" p0 ra)
* r; a# g# K. t/ C/ e* C - (command "circle" p0 rf)
6 H* O; p, f3 }1 \4 D7 \# x - (command "circle" p0 r)# r; u/ O' d. q2 t0 E! Q
- (command "line" g)4 x9 N" g8 ^0 j- E R% @6 k
-
& m$ V1 e2 A6 A1 J$ k5 v - (while (< ri ra)- E7 t0 F( n6 u0 Y1 |/ V
- (setq, g* R+ T! M, F" l9 \: G1 S$ u# `
- ang ( + ang(/ pi 360))1 O0 l& M6 t# n( g; U ~% z
- ri ( / rb (cos ang)); {* q" x" e- M" }5 f( [
- cta ( - (/ (sin ang) (cos ang)) ang)
}6 c: B$ `8 D7 p( G - g(polar p0 cta ri)
# a$ c, f0 h& [# l* s( D9 G n/ }1 y - )& E! j$ X' T6 T2 v
- ' X6 r6 S. u0 k( i" U) q4 [: h6 v
- (command g)
1 O0 O1 l! W+ V) s- A- ?' H% N - )
& j9 N' \. h- \ - (command ) 0 G. y3 i0 D! g/ {4 Y- F
- )
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二、螺旋源程序, k$ z0 D7 N0 r2 w1 b- ^% t
4 }, D, y. i! I2 e0 _- (defun errMsg (s)
- N4 u5 H+ F. H - (if (/= s "function cancelled") (princ (strcat "4 [4 x6 u% V- E9 y4 m0 ?5 L
- Error: " s)))
: V' @( Y6 A8 f4 M" n1 b - ; 当命令执行时出现错误/ j9 v+ O9 i$ J# Q/ S5 j
- (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C5 ]' U, t" y4 i: D
- (setvar "osmode" osmold)
- `& G) L# D2 s9 @6 I. `# C - (setq *error* olderr) ; 恢复旧的错误处理9 f( e+ `) U5 y' O( G
- (princ)6 e$ S- ]# G4 E
- )
5 X& ?+ z* k' t
/ m) v7 y9 v3 ^* ] Q3 u1 D- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle
2 T; w# }3 R3 N, j3 c - ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)9 W1 Q5 o: f0 r; w/ l/ s
- ;-------------------------------------------------------------------. G. W& N+ G; s. A
- ; 获取公制外径大小、螺距总长
+ Q6 F6 j8 [7 Z& q - ; 然后计算一系列几何点) P) `4 ^( M+ C
- ; 并且关闭对象捕捉、命令回显
" b9 N. m: G7 J) y" e; Z2 C% f/ I - ;-------------------------------------------------------------------! x6 N: _" {9 w6 y3 z4 N; 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)) / Y' R U, M+ [' D0 n! h
- (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))
: Q. |- ^2 n2 B7 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))
3 G( o, W! m3 u% \2 j+ B4 O5 x6 ~ - (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)) ) X: ? Y$ N7 ^
- (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))
- b) p Z" J4 D, g, \ - 2 {, ?. P9 P# D) Z
- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
& M8 }3 n/ d4 y3 F - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值1 z1 u$ c4 O6 F0 {% p5 ^6 V
- (setvar "osmode" 0) ; 关闭对象捕捉
0 n3 e% r1 z$ x, W, T' T - (setvar "cmdecho" 0) ; 关闭命令的回显
2 g% }- N+ m7 _+ w5 M+ D+ P
4 a! S V5 ~7 B1 x7 ]- (setq innerdiafactor 1.5) ; 设置内径系数1 ]6 u& G2 u5 d2 _& ^: x4 a; V7 q3 ^
- (initget 7) ; radmid 必须非零、非空、非负
% z3 I# I1 w8 V6 C' A) o: ` - (setq radmid (getdist "
0 K: K) @; r2 Q( k4 V- z - 公制外径: "))
% W O: T. K1 e" z5 `# R' R - (initget 7) ; threadpitch 必须非零、非空、非负" z, |/ l/ I' U( K& }' u2 R9 @
- (setq threadpitch (getreal "
. [" n! E1 u% P( g - 螺距: "))
: D; |$ G! X! ]& L8 m7 A - (initget 1) ; ptStart 必须非空
9 S: ^! g6 S7 |8 h6 L$ r - (setq ptStart (getpoint "
+ K* L& c( [. _ - 起始点: "))
: T6 w! L$ a# e& Y" P5 f' X - (initget 3) ; threadlength 必须非零、非空、非负
! I% l+ C1 A5 e r4 C - (setq threadlength (getdist "
9 _3 j! |: ^* {9 e" Q/ m% | - 螺纹总长(Y方向): "))4 M: L- q5 B7 Y0 J" N( a
1 U1 ]( X0 H( p, w" k# s0 U- ; 对公制外径添加公差
2 I$ t, o; m# {9 S, t' K - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
2 I: S% j* x3 T7 } - (if (<= radmid 6) (setq order 1)
y* A* g7 b2 v0 A - (if (<= radmid 10) (setq order 2)
" |2 W+ A1 _ j6 k - (if (<= radmid 18) (setq order 3)
5 `+ K* L% S3 }& w2 g: O* { - (if (<= radmid 30) (setq order 4)
6 J, |, G, e' B( h- E8 n) F$ T0 q+ h - (if (<= radmid 50) (setq order 5)
- ^4 H7 Y" a. T K0 \6 [$ R - (if (<= radmid 80) (setq order 6)1 \/ a! ~" M2 r9 P, B
- (if (<= radmid 120) (setq order 7)
- P4 E0 a3 \; V4 X; W - (if (<= radmid 180) (setq order 8)+ c# B, g, O* u
- (if (<= radmid 250) (setq order 9)
6 h l$ ?; y+ S5 f - (if (<= radmid 315) (setq order 10)
- @! C s: M* h4 q; z/ i5 U - (if (<= radmid 400) (setq order 11)! A1 x9 C- I: K! o8 Y6 d
- (if (<= radmid 500) (setq order 12)
$ H/ a, u9 k- m% }: K; J k - )))))))))))))" G" I, V# a& i, a1 [' B0 W
- p* s$ n3 q* e r( B0 x; W
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
' O3 `$ s" x6 t! M - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
5 q; z0 E0 H; l: S - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))$ L$ ^6 G! \3 ?0 p
- )))' q* B" L5 a! K7 K7 q$ R' M* x8 A
- $ |; q! h1 p& q4 D2 A7 n% y: y
- (setq h (* 0.866025 threadpitch)) ; 计算齿高) K6 L+ H( \, d+ E u0 B9 @
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
. R* P- j9 P3 `+ W - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
1 [3 g. |% m' r" R; T - (setq threadangle (+ 30 0)) ; 计算齿顶角
8 y, d. f3 ]3 H) \: W4 C" k2 Q) ]1 f, C6 M9 G
# |' K9 x, A% \; O1 j- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数
; h. V6 r+ H1 p% ~8 g# J8 @% X5 C: q
& h% O3 m B: K0 b d- (princ "; ]. L. v5 t, I* W; k/ M
- 三维螺纹创建完成")
: I J2 Y" e1 Y4 y - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
: E1 F9 p; ~- j, d0 c" I - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
$ H. o1 V$ j% f& t) b4 p/ }( v - (princ)" V# A7 Y K$ p) C( w; P! r) _ M, y
- ): F8 n9 w) B0 {9 k5 d0 V1 I
( Q6 n7 P+ U' z/ h- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a6 J2 Z& i/ s( C2 L! s" L; V; f5 X
- pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
/ k* E4 v% e+ [! H$ p: A. x - 7 q7 P8 F: ~" ?
- ;(command "undo" "begin") ; 开始undo步骤
: `8 N. P' j) \, N+ ~7 M3 | - 8 T- I9 K6 p/ C- b. V
- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)
J- v* _; z1 o; t3 L+ X - pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))( `' ^5 n' @/ ^/ ^* }) n
- pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0)), `5 R0 k7 x- ^' @2 E
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
3 l" i9 D H4 Q& v4 q+ }- x8 ]& H - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))4 I- H, G/ F6 Z' G) n
- ang (angle pttmp1 pttmp3)1 t. x2 q# D0 o3 `$ a
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch): Q: x5 r" J1 P7 S
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))7 a+ b+ S2 l5 D& F
- pt3a (polar pt1a ang radouter)! ^1 g& u; p5 n( U b# E+ h
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch), {/ X9 Z) c+ G) g* q- e
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))
0 m4 S: e' F1 L ~% N# f - pt3b (polar pt1b ang radouter)
n! w$ H# W4 J7 P1 \- h' e - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)+ e7 M9 _5 J. z8 z8 b* d
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)# w/ w3 w7 ~# {7 P: w. c* Z
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
) W* p7 T* z; Q7 p& ]: { - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)8 `5 S4 [+ ?* Z
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)! W9 d7 C @5 g# I
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)3 k& P" f6 c" U$ B1 D) b
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))9 b% k9 x& e$ {
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch)9 k; n: q. {, \
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
1 E4 {" U! l2 }* j - )
6 _1 k( D6 e; z9 |1 ]+ D0 t - - F6 P8 E" A0 Y% H1 H4 H+ i
- ;-------------------------------------------------------------------
+ V. d, C# [; |4 i8 v7 R2 b - ; 绘制两个倒置的并偏移1/2螺距的圆锥
' f4 p" f. B2 H - ; 这两个圆锥都以中剖面剖分
5 j! `+ f4 m6 I, D - ; 进行并集运算$ g. ^* ?2 d7 T6 v8 H
- ;-------------------------------------------------------------------
% \; J7 k c4 D# Z$ L3 R
: q3 `# S* m9 P/ l: o; Q4 D- (SETQ startcone "order")
/ O) g' _- _4 p2 z% e4 C - (SETQ endcone "Y")
, U9 B) g8 N; \# H) S1 T) T - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)
# @! r# C7 m1 T( I - c. G% F- J! k4 u( k1 y" N
- (princ "( z. z7 h* o5 x, }4 w& n
- 正在绘制三维螺纹，请等待")
! |% N6 y$ F h$ s% b+ G - (command "pline" pttmp1 pttmp5 pttmp6 "c")7 L8 A/ C5 ]4 l% c9 g
- (command "revolve" "l" "" pttmp5 pttmp6 "")
. g. T( P8 P( t& { - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
8 D& V+ Q, H+ b% |: U - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
6 F+ b& y, [$ M# y* y - (setq tstmp (ssadd (entlast)))
6 V5 ]+ I8 H* ^, t, @3 c& \ - (command "pline" pttmp3 pttmp9 pttmp10 "c")" C# E) Q& M7 Q& Q/ M3 Z4 l4 Y
- (command "revolve" "l" "" pttmp9 pttmp10 "")% h- m' J" K( o8 l
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
# a) K' O. L4 p* E* } - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)3 ]0 U' a% K) m
- (setq tstmp (ssadd (entlast) tstmp))
+ ? K C1 W9 \' J; g - (command "union" tstmp "")0 r* K# u' B" @1 \% W A5 u
- 7 L4 s2 l% `" a* v' l
- ;-------------------------------------------------------------------8 r2 R; k' [1 t' I! ^
- ; 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
* {. a% m; ?/ S - ; 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
0 D; L) x# y8 N; w; B) ~ - ; 在最后一步被切除1 {: h# D8 y9 C4 ^+ Y
- ;-------------------------------------------------------------------$ R; u0 l* _& P
( b% h1 g7 q7 n0 _+ p- (command "slice" tstmp "" "xy" ptStart "b")& t% g L/ u, B1 R
- (setq tstmp (ssadd (entlast) tstmp))9 ?4 V( a9 e% [# S/ E
- (command "mirror" "l" "" pttmp1 "@10<0" "y")
& u, T1 u) A3 F. j& C, C4 z7 {0 r4 h - (command "union" tstmp ""). U- Q S/ C& E8 J6 E" @9 N
7 y: }+ }4 [: w. y' f( M8 e- ;-------------------------------------------------------------------
4 a6 Q. j$ Y! ~. K4 U% D - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）+ D+ u B( S5 M) C! P
- ; 得到的实体再切除到指定的螺旋高度+ ?" L9 X* N! Z7 r1 a4 }6 b/ |0 k
- ;-------------------------------------------------------------------3 j; x8 ~, S9 l
3 l4 E& V* t7 o' A9 N( L+ m* z9 f- (setq e (entlast))+ P" V2 Q! A) e9 @* Q% c2 ^. A
- (command "array" tstmp "" "r" ttal 1 threadpitch)2 r, t) {( E* `! ~8 c
- (repeat (1- ttal)$ b5 E$ O- ?, M ~# Q: p7 m1 b) p( ]
- (setq e (entnext e)* ]6 Z K7 `, k& ~) B0 A
- tstmp (ssadd e tstmp)
8 b9 q$ J6 `5 g" J* j - )
! q; B$ T( a! j) G& t$ E - )
/ E; k0 P3 W2 ^) a4 O - (command "union" tstmp "")
* z, Y0 _9 ]3 s0 h! R( J
% o5 J: z. m j( y1 D( b) D- ; 若开始创建45度的圆锥" H8 ^. I" L: I, d8 P. g
- (if (/= startcone "order")
- J7 k& p" M- |" ~+ m - (progn (setq e (entlast))
7 M' ?# E1 b) }9 f. J - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
% C/ }3 i3 {7 F7 ~ - (command "union" "l" e "")
. m. ~* ^% @3 N8 I6 \3 s2 a6 Q - )3 N& S t0 N2 ?7 c3 m
- )
" [/ O2 H7 x& g+ U- d$ o
" ]1 {+ }7 [4 t: _- (command "slice" "l" "" "zx" pttmp11 pttmp12)6 [& K/ e# ? _. R, _( \
- (command "slice" "l" "" "zx" pttmp12 pttmp11)# M4 Z- l8 e+ P2 d& n! V2 Y1 }
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart)))
+ c% r% L: t# h* d& l2 c4 W
6 ^' G6 X; {2 N3 S' a) E% z& h- ; 创建最小直径的圆柱体，然后与螺旋作交集0 E& ]$ k \- b/ j$ M+ A
- (setq e (entlast))
% g0 F. h4 u; d6 g" J5 C# O$ T - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
. p: R0 {1 b9 I. ? - (command "union" "l" e "")3 I% ^! L# r5 M4 K/ D
- (setq tstmp (entlast))% H a7 Q. o1 ] j( P
- 0 X& N5 D9 s4 j6 _% d( }/ i% M, |
- ; 创建中空的圆柱体
/ [' x5 r$ }* _; H" P - (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia6 `6 W6 U7 a+ A7 t8 Q% L8 a
- (setq e (entlast))
4 J2 x6 z$ N# x+ Q0 q# } - 6 q' l0 `( @0 A( @4 k; U+ h
- ; 若最后创建45度的圆锥! C: v; I- h; Y% b$ [3 T8 n7 N7 }
- (if (/= endcone "order")/ d6 p s. g6 \% v4 _* ]
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) $ ^/ |, `- q7 E2 v2 a5 I& y" y
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
( q! u& [5 u. J9 y! S - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
5 W5 R! j$ V6 r8 G1 b2 ^- O - (command "union" "l" e "") : Q# _* q, ]3 b% P7 X( q- r4 a
- (setq e (entlast))
" {! W1 ]) Q- y" k/ W$ G - )1 c7 t7 J1 ^/ M2 Y& I& L
- )
8 R4 b% ~$ ^) \+ S3 [; r( d3 X
) h' H& `8 @, L1 x" y0 U9 z- ; 从大圆柱中减去小直径圆柱- g' u3 i6 R+ @7 }
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
- c+ c! C( K& v6 B( L- m$ D) Z& {. ~ - (command "subtract" "l" "" e "")5 p: Q. U& j8 t) ]1 {* e8 C3 m
- (setq e (entlast))
?( Z+ v N" j3 h; c) m, a3 B - ) P' b3 Z8 M0 L {
- ; 从螺旋中减去圆柱( Q- d+ S, p5 U$ x4 o6 F! M4 X
- (command "subtract" tstmp "" e "")
. o8 B6 G+ I+ _
: q8 |+ Q' x6 t- ; 如果螺旋长度为负然后镜像/ {5 }% A: l) H V4 ?
- (setq e (entlast))
+ T; g" Y, p2 ]( X - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))2 E b* w. {: {8 @% Q; E
- ' p- i9 u, C) u4 ~1 u3 N& X i
- (command "zoom" "p")
2 l7 O G0 g G5 S - ; (command "undo" "end") ; 结束undo步骤
" I$ \/ s8 I& n! W/ |9 T - ); z& g% F8 S0 v, p8 b. ~
- 6 \$ k5 N1 j: L) }2 [
- ;;;---------------------------------------------------------------------------------------------------------------------;# V; ]* k: B2 A+ s1 Z( U
- (arxload "geom3d" nil)
) G0 w- S/ {1 [: m( [8 D# _ - (princ "
' ~: j9 D' w. S# J6 H6 N! e7 q) | - 3DThread 已加载。 ")3 C' p1 j% n. |( s/ [ f
- (princ)* n) A2 |) k3 B9 r
/ L8 B, F8 {: V$ N3 i: E
" p2 w5 t# `, M0 V- z三、弹簧源程序. z+ w0 I, n) c4 t% I7 d6 j) g
- (defun errMsg (s) ; 当命令执行时出现错误 ; @0 q$ ?# l4 w/ A, x
- ; 例如用户按下了CTRL + C8 }) A. q+ D6 N4 m
- (if (/= s "Function cancelled")
6 }, W0 x3 j5 J9 U" Z7 x, _' q - (princ (strcat "
9 [# V; j8 N2 j - Error: " s))3 F7 J5 B! g7 N Z. X% c
- )
8 c& E" B" e& W0 f7 p' I) c p: G - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值* ~6 x! ^0 J( U
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
: s8 x( b5 T6 w5 f! l1 V! Y% @ - (setq *error* olderror) ; 恢复旧的错误处理
) e4 \6 N) i- u$ @ - (princ); X. r7 |. A* P9 Z& L, { s- N: j
- )' d& `, Q, G" x" |) g' F; J) M
6 y3 y+ U7 L- v' F% K6 n# y- (defun spring (nRepeat cntPoint bhfac lr strad bvfac. o0 e- V& L+ ~
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
% ~) N1 ?+ i$ Q. C) r
! q4 M1 t5 ?5 v' { o6 F+ }3 D. |# N8 v- (setvar "blipmode" 0) ; 关闭 blipmode
( O( x5 d0 b7 y* p h+ a - (setvar "cmdecho" 0) ; 关闭 cmdecho
2 \% L a w7 Z9 [0 |, F - (setq Pi2 (* 3.14159265 2))
" V' v7 h7 `7 W ]* J0 m& r - (setq aGrw (/ Pi2 lr))
; U5 k8 G" \$ t3 z- J - (setq dhGrw (/ bhfac lr))
# O: Q- n: |$ G: Y' y5 i' k7 p - (if bvfac (setq dvGrw (/ bvfac lr)))
/ A$ ^) }. o, |) r) y+ E - (setq angle 0.0). b2 ^ _( I+ Z3 J
- (if bvfac+ b3 B+ X; O* }8 h+ R" `- A% w
- (setq distnc strad dv 0.0)
^; Z' u; Z; K7 Z) S- e - (setq distnc 0.0)
& A# m! P" u# O* N - )# N: @3 m2 ~) M
- (if bvfac
/ Z* @+ q/ k9 a - (command "3dpoly") ; 开始绘制弹簧 z! E/ S* ]# g. P; g4 M
- (command "pline" cntPoint) ; 从基点开始绘制弹簧1 {% d) z0 T& K; y
- )* [) j) j0 u* P' k8 ^
- (repeat nRepeat - g! U$ A8 q4 p" k9 Y# M2 D+ b7 g
- (repeat lr 1 R* Y1 e* w' j! z
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))
$ A8 k! @9 P! H5 X' m# t, n - (setq distnc (+ distnc dhGrw))* s. ^- j+ x; h% Q5 I3 V$ e; x
- )
/ Z! _- b" N. M - )
/ | L9 \# b8 |- i! D' g0 r% ] - (if bvfac
/ n4 [, i8 \2 J% m - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))7 g3 V" ~8 y% I
- dv (+ dv dvGrw)
6 w0 |5 i" F. z F; U6 G1 r* Q6 n% j4 H - )
+ u0 p0 i5 K1 q* O* a3 h - )8 L( y }! y" O% T) O
- (command tp) ; 继续输入下一点/ [# @! T& ~& l* n' L
- )
. e6 l a" ]" X0 ~8 {5 x - ) / t T( x5 |% ^7 n' B' b
- (command "") ; 输入结束6 C0 f/ I0 K; N( o! r+ }
- (princ)
4 q) M8 U) Q6 [: f% K$ t" D [, ] - )
, g0 h A* V/ ?! t3 D- ]+ _* E
# R1 P$ F, s y3 ^- ;;;
# W0 M; V# ~& `# C - ;;; 生成三维弹簧函数调用接口
# @* m" \2 D4 J- u* O - ;;;! f2 y" }/ p: k U3 @! ~. S* M" \
- 5 \/ N7 d- o- V3 _. i
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) 0 N8 j8 `: K/ |8 }
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复2 v# Q. t0 p& v1 R
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
; J2 c3 x$ n Z& h5 h9 R5 f, E# } - (setvar "cmdecho" 0) ; 关闭 cmdecho ! ?4 Y& ~& `5 i( n4 E
- (initget 1) ; cntPt 必须非空2 }: f3 o5 y$ q+ E* }! D7 h
- (setq cntPt (getpoint "
4 q' `: v$ S2 Y, _ - 请输入底部中心点: "))
n v- q q# g - (initget 7) ; RottCnt 必须非零、非空,不可忽略2 f2 C" k( h. M7 g5 N4 {9 l
- (setq RottCnt (getint "
- U6 C4 m8 O. R% A4 b - 旋转的圈数: "))
; @- j5 h6 ]# }1 V& o8 f - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
. D; k9 I0 k; u3 A) s - (setq bgnRdtn (getdist cntPt "4 L- w+ e! H. L+ \. c- K9 v! [
- 起始半径: "))
' l+ t) t1 Q+ l - (initget 1) ; cf 必须非零、非空$ A9 Z( _% r# ^2 A* F
- (setq horiGrw (getdist "
3 X7 r; u7 e9 a. } - 每一圈的水平增长距离: ")): H' x: {$ O6 t
- (initget 3) ; cf 必须非零、非空
3 y- n1 H+ Z Z1 J/ K7 ~ - (setq vertGrw (getdist "; e1 J6 C0 Q) s, g M
- 每一圈的垂直增长距离: "))3 ^ n& w/ W. F" U% l
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略' ^+ P7 c; N* U) J( K5 S
- (setq ptCntPerCircle (getint "
- x" r) c' n7 [( q& D5 p( ` } - 每一圈的插值点数<35>: "))1 G' y4 Q: I0 G
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) - Y+ D( \$ @( j, P! R
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)- h/ D- z# M, ^, k
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值7 U. L/ e" i9 M0 z
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
/ o- h; B: u+ U) A1 V; ~4 L - (setq *error* olderror) ; Restore old *error* handler
7 H$ b( R9 Z6 j6 M' w7 e* h - (princ)% g! e5 J9 G) i4 [
- ( F1 |* H6 A3 R$ }# A
- )
+ c( ~5 }7 I8 F
|
发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
