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: N/ L1 \7 @4 z9 p
) B' f$ w! Y& [1 b: d- W' N$ S8 R
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：. J) T! e$ c( z8 ^: ?
一、齿轮轮齿渐开渐开线* [* Z* v2 r7 P9 @5 {1 z) |
2 D8 _/ k+ m/ G4 I& I. U- (defun c:gear(/)7 f6 f' o) R- R" @; A6 [
- (( N1 K- }# Y$ g* [( F% C8 B: Z- q# q
- setq `" K/ _! @1 t; b$ C
- p0 (getpoint"输入齿轮中心p0: ")! f3 q' I4 R. f3 a, r8 V
- m (getreal"输入齿轮模数M: ")3 `% p# t0 X- Y& X
- z (getint"输入齿轮齿数Z: ")/ r4 ]; z; t" ~
- ha 1
1 A# ]& x' t F* S. _* I' L - c 0.25
1 p2 b: E! e$ t( V - a (/ pi 9)
! Y8 V# q9 r( P t8 \) q - ra(/ (* (+ z (+ ha ha)) m) 2)
2 G' W$ V1 i/ t, p6 C' V8 x7 W$ I - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)) l' H: n4 f1 r. ]% I
- r(/ ( * m z) 2)) ?9 h% \+ ]4 Q
- rb ( * r (cos a))( I, R( U; J2 @4 ?+ L+ e
- ri rb
! ]5 N4 V. r! j6 [! i, F - ang 0( _& Z1 C+ l9 h8 g y2 W
- g (polar p0 ang rb) w# k9 y, x3 B
- )
/ i: ^& G/ z$ s2 j; J" k1 H - (command "circle" p0 ra)
3 |- Z2 I6 }, e0 c - (command "circle" p0 rf)% I3 A6 Q2 p+ I! X) W7 n5 B2 I/ _
- (command "circle" p0 r); A. p" U7 {" ^7 C
- (command "line" g); w7 ]4 ~9 r, _. u# w/ z8 n" U h4 t
- 5 F7 d( g$ x1 x, o7 n
- (while (< ri ra)
6 M$ l: A3 g; k - (setq. {; ~: k0 k6 H# D5 S
- ang ( + ang(/ pi 360))9 f$ E1 P8 F2 W$ V
- ri ( / rb (cos ang))
0 H/ L5 M) H, L" e/ S+ f - cta ( - (/ (sin ang) (cos ang)) ang)
& i {# |, ` d! g1 A6 |9 h2 I+ o - g(polar p0 cta ri)
6 a8 Q0 H& M/ S& a& i* l$ w9 n, p' d - )
- d5 ?2 b, Z. b - ' A& u, G! a; ^$ M( f
- (command g)
4 J8 o' r: {' p1 C" A# I3 N - )" k4 H: @ S ~) B
- (command )
/ `! M) E) P: S4 Y1 v; I) M - )& w! }: P1 H" `7 b6 X
" h; @: l8 }$ R( s, X( `* a( r3 Z3 m" y( u h. [+ r t0 B
二、螺旋源程序 [6 W: s2 |/ X5 b
% v' _: C7 F. {$ O2 R3 i4 X
- (defun errMsg (s)* W7 e2 W# j, V: x; ]" P
- (if (/= s "function cancelled") (princ (strcat ": z* }1 G" S2 `7 ` K- C
- Error: " s)))
: \/ y9 ~- s5 j, P/ O% R! j - ; 当命令执行时出现错误
6 Q6 ?2 g& y# h* S2 R/ {# X - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
! G: S" _/ i: R2 w - (setvar "osmode" osmold), r$ l2 M* L7 s6 ?* q
- (setq *error* olderr) ; 恢复旧的错误处理+ z0 k( T' X1 R1 n
- (princ)6 s! ^8 O( X- E" s
- )2 b- ], O; v, q9 x
- 5 |6 \4 d7 X/ E8 s: v) P4 F2 \
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle 7 B. p9 _% x% m b, `
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
: f; }9 L5 [) Q" G: v8 A - ;-------------------------------------------------------------------
: n& |8 v, x6 E* O1 J0 o$ X% w - ; 获取公制外径大小、螺距总长4 q! A3 [' M8 m/ V8 A
- ; 然后计算一系列几何点9 H& u# I1 f3 M8 ]
- ; 并且关闭对象捕捉、命令回显
, S; D; A3 t3 a2 B6 R/ f - ;-------------------------------------------------------------------" z( Y9 w9 P3 T
- (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)) + Z5 K: _) k# R U8 T
- (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)) # M( p1 Z$ F" d8 I0 P# i4 L
- (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)) $ E3 v/ f3 S! |6 r. A+ V) ~1 P1 k: n
- (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))
( q0 I3 j3 I8 r, e - (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)) X/ V$ {8 H7 ?/ a# v" ~# V1 }
" J. ^( Z" _" A" z4 V& P1 \- L- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
( y0 j4 m3 Z5 p4 x3 j - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值0 Z; A1 p: h3 y" F- A$ ]. [5 R
- (setvar "osmode" 0) ; 关闭对象捕捉 5 {) K7 g2 g3 p8 U0 d' p
- (setvar "cmdecho" 0) ; 关闭命令的回显2 {' {: s+ L" ?" }
- " l t6 d, C8 ?: W7 g2 ?8 l% O
- (setq innerdiafactor 1.5) ; 设置内径系数* K. [ a6 [! m( H# d
- (initget 7) ; radmid 必须非零、非空、非负
- V; s M% f' c ~% f$ b0 h - (setq radmid (getdist "
; c: v! H* {0 W( Q1 T9 V$ P1 G - 公制外径: "))
1 I* L, B3 ?5 u+ w( }8 r- G - (initget 7) ; threadpitch 必须非零、非空、非负
# V9 M+ d; c* D3 r* R, x - (setq threadpitch (getreal "+ u3 v5 L8 Z6 ~. h: p3 ?# W1 `3 W) ^
- 螺距: "))) [- V9 d [! l( d8 a+ Z& t2 @
- (initget 1) ; ptStart 必须非空
5 T2 k* e9 Y- h% `5 h1 P. e: d - (setq ptStart (getpoint "6 O1 d, }3 S% }( K
- 起始点: "))& u4 S& ?- c5 h$ z0 t/ @% _" z
- (initget 3) ; threadlength 必须非零、非空、非负+ E$ R6 U/ J: U, X1 s8 S
- (setq threadlength (getdist "7 b, j7 N) R9 U, l r0 b2 ]2 m% j
- 螺纹总长(Y方向): "))) W# p0 g" i/ m
6 x+ b; {1 e5 P( x: s- ; 对公制外径添加公差! T2 L4 m1 H; [1 {6 h$ D
- (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
. }! l7 F c# M( A$ [8 ^% k1 L& e - (if (<= radmid 6) (setq order 1)
3 d6 T1 }6 E$ R8 U; I - (if (<= radmid 10) (setq order 2); L( t+ R1 N% ?) y7 l+ H; ]
- (if (<= radmid 18) (setq order 3)3 T6 T4 B: S- J- Q/ m* n
- (if (<= radmid 30) (setq order 4)0 g* ?7 K5 U8 ~6 p. b8 `
- (if (<= radmid 50) (setq order 5)
7 s, u$ C$ @; E) @! | - (if (<= radmid 80) (setq order 6)
5 {# B1 V2 a) b: L" [+ ~ - (if (<= radmid 120) (setq order 7)9 o$ B! m+ K6 D9 }
- (if (<= radmid 180) (setq order 8)
" i7 z$ b7 w# ~- g& a3 Z% b8 F( A - (if (<= radmid 250) (setq order 9)8 s! j' H8 H0 y, d- y
- (if (<= radmid 315) (setq order 10)
t* g( y; n% r9 b3 n - (if (<= radmid 400) (setq order 11)1 [# _/ q- J6 a# c
- (if (<= radmid 500) (setq order 12)
) N8 \$ `3 b. B# a3 V. A) D - )))))))))))))
1 k# {$ `; {+ j) B6 N0 |
. j# p- E1 G4 z- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带: X" J l% ]0 ? [4 [5 `
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))) m0 c% t+ n+ L0 |) B8 d3 k
- (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
2 W# @$ N3 Y, S4 l( s; g8 m" M - )))
% I+ u: J# V; H: q! @$ I - 0 _6 U2 H/ U8 d8 P* e; h t( b6 }4 f
- (setq h (* 0.866025 threadpitch)) ; 计算齿高
$ C; u' ?. y. u/ I) r$ Z - (setq radouter (+ radmid (/ h 4))) ; 计算外径
. T5 L# q* g4 @+ l9 w+ A - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
' Z8 A. y7 A8 w - (setq threadangle (+ 30 0)) ; 计算齿顶角+ |, j, J0 {& s
7 @ F+ Y; @; L# Q! s# O- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数1 O6 P% _/ P/ U) ^: P" r
8 Y1 @; ]4 x3 i6 V- (princ "
, R2 |# Q' I* b, c6 x8 M/ O - 三维螺纹创建完成")
( O, x0 _$ l; |9 J - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值+ e t8 i8 j( n/ S* K4 r
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
8 f; J7 S5 y0 P( Y5 M7 o - (princ)+ p1 N7 \7 S$ d# a, |4 Q
- )1 Y1 S7 n9 j# p: n/ Q; B
/ N& |; l5 d5 U% v- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
7 B5 F7 @; K: [2 ?* |7 ] - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
! x* d8 f& [( Y$ s1 c
L# `% H! \- X* h! n* S& v% ?- ;(command "undo" "begin") ; 开始undo步骤9 C* ^+ k. [) X5 V
% |% \, A1 O# Y/ J$ Y/ f; s+ k- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3). ^4 i: {$ G" n- R% C! n
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
: k4 ^3 i8 W; [$ B a, P - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
4 d) r: n4 r/ V0 z - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
5 S' }: u2 I* x1 @ - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))! X8 L" u B W, X
- ang (angle pttmp1 pttmp3)
- S- V* G$ r1 s6 c/ V. L - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
8 D$ R$ w' ]4 D: H! H e) w2 d - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))( x7 b1 l. S. H H: b3 A. p: |+ v
- pt3a (polar pt1a ang radouter)# A/ p7 J; K/ E* N( ^( C# k0 b
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
- S6 B9 ~# q2 f! T - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0)), O' A/ ~( K% f2 [) H8 m$ T& j' D/ l
- pt3b (polar pt1b ang radouter)
- X8 m- i8 `; P5 ~1 j" Y) M - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)6 F4 V- P4 i# @' O
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
8 K2 u e5 A0 E8 X3 R" V! K1 {' k - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
9 l( u' s+ d+ d* M# ]& L - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
% N [" _9 g$ X" Q/ ?+ O - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1) Q0 K" @7 {8 x0 \; w1 ]) b
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
) v l+ @) I6 @8 S1 \! m/ u4 s - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3)), x; ^! H) P* V% |% X# A( ~
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch)$ c; p) w/ I2 c% D. n
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
$ Y) O% k" c: U+ L# t! D, v - )
2 w- q* n7 k7 V* ] @
2 K2 U% S- |' I- ;-------------------------------------------------------------------
" r, n0 L' ~" x - ; 绘制两个倒置的并偏移1/2螺距的圆锥. P. A8 A% ~0 d; y+ b4 L4 u
- ; 这两个圆锥都以中剖面剖分
- |0 ~5 X2 z; P2 I7 u0 W/ s L! T - ; 进行并集运算2 }& y+ s* ~% a3 C7 p5 h
- ;-------------------------------------------------------------------
+ J" r3 b) g. a7 n/ [- s8 b: J- q
: [2 q2 Z( L4 I) Z$ m$ C% I2 e- (SETQ startcone "order")
' P' g: L& @' c9 x( u - (SETQ endcone "Y")
& ]7 Q% h" i5 L - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)9 t% ?( M' X& a: ^. @0 _
- $ Q4 \0 m. \ d( ?. F/ |( e
- (princ "
" m8 M/ X$ I* X4 ^$ u. B - 正在绘制三维螺纹，请等待")
9 a0 X8 r& |5 A: D! O' l - (command "pline" pttmp1 pttmp5 pttmp6 "c"); G7 G5 R R4 l, l% I6 I
- (command "revolve" "l" "" pttmp5 pttmp6 "")3 v- E% G# A) U, R/ d6 Z& A
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)" Z/ z+ a$ {0 e) W& R7 V
- (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
. e5 A; I! _0 F; v - (setq tstmp (ssadd (entlast)))) L; y4 S/ K1 d
- (command "pline" pttmp3 pttmp9 pttmp10 "c")
# s# J/ [2 ?+ Y" P6 d* I - (command "revolve" "l" "" pttmp9 pttmp10 "")" K& `, V* _& y# [$ D% a: i
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)- ?* k+ `' q5 p, M" v* Q" g
- (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
9 s+ r* q/ D% A/ ~3 R( J - (setq tstmp (ssadd (entlast) tstmp))
- o2 w1 \7 y9 w" M- ?: [) G' V, x - (command "union" tstmp "")3 d& W+ q( n+ x6 T3 ]+ \. a
- + n- T4 Z# i/ T. I) N
- ;-------------------------------------------------------------------: X9 {) v1 M# g6 Y+ j
- ; 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( j b6 R+ T& v6 U+ ]! {- ]
- ; 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, j& D) B" ^1 h0 V4 _ S
- ; 在最后一步被切除) u+ ^4 j3 A% P0 Y
- ;-------------------------------------------------------------------
3 }( ~7 V6 S* F - 6 N) [. F, Q3 b0 c$ b4 P
- (command "slice" tstmp "" "xy" ptStart "b") k6 ?4 y' z; W% h( C
- (setq tstmp (ssadd (entlast) tstmp))
: v9 V. Z0 J" {/ t. r/ t - (command "mirror" "l" "" pttmp1 "@10<0" "y")
+ e+ j2 e# \. n - (command "union" tstmp "")9 { a( R) U+ p: R# Q5 y e# y
- ) f+ C1 @- x( K" }
- ;-------------------------------------------------------------------
# l* |% q* G4 p! i) Y' A - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）" M( x! P; G2 v/ _* {" w6 n$ I
- ; 得到的实体再切除到指定的螺旋高度$ q8 ]3 I, r" W$ e7 v3 |
- ;-------------------------------------------------------------------) ?2 d& L, c# D0 J; x. Q
( z: j0 O2 J; P- (setq e (entlast)), @# \0 f2 F1 E+ X$ p* f$ T+ E
- (command "array" tstmp "" "r" ttal 1 threadpitch), L3 ], Q* O: ~% k% k
- (repeat (1- ttal)7 i0 `$ T0 P) ?1 V$ J
- (setq e (entnext e)2 }/ B! M# T6 X& s V
- tstmp (ssadd e tstmp)
( y* Z! G+ e+ l: u - )
9 R; r4 n* i7 F5 d) ^/ q- i - )/ o1 R! X. u$ {8 ^) r! ?# I8 A
- (command "union" tstmp "")
7 z6 s8 U& [& M
5 Z# O3 n; z/ v/ q4 W7 M- ; 若开始创建45度的圆锥4 D/ I x/ L; V/ ]: J
- (if (/= startcone "order")
3 t: {' g6 s% G7 O( v" ~1 j - (progn (setq e (entlast))
! w; {; z% w4 |5 j6 j$ q, D+ ~ - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
& [( y( s8 p6 U& N; \ - (command "union" "l" e "")
5 b- x* l8 s$ K+ M$ A - )
, W0 j/ G" M9 r' _7 |+ u# O - )
- F$ _/ \+ E0 J" n& a
6 P6 Z; A8 p0 V' D& A- (command "slice" "l" "" "zx" pttmp11 pttmp12)/ T7 V4 o6 J: o* `3 c' E
- (command "slice" "l" "" "zx" pttmp12 pttmp11)
7 L" c9 O8 g* K1 T5 r - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart)))
" n) T$ p6 X1 W
' q( I, _9 E8 E& V$ j: }0 N4 s- ; 创建最小直径的圆柱体，然后与螺旋作交集
7 X( O' a0 x/ e' d, f0 k - (setq e (entlast))( Z+ t% _# ? C) V1 v- m- G
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
2 t `+ z5 Z8 o( ?: e; E; ^ - (command "union" "l" e "")) {% x2 j% t) x' e4 c$ L
- (setq tstmp (entlast))+ F: E" l* ~' K& q c* S
4 \6 p$ W: ^/ L# \$ u4 L# K$ j- ; 创建中空的圆柱体$ {/ c! Y1 O! x7 a, Y7 {
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
: G @& F6 @2 l% D( H- ~' T: ^ - (setq e (entlast))
* N/ V9 g1 k" l; ]: B - ( V7 u w2 [ _1 a9 B
- ; 若最后创建45度的圆锥
/ K4 a3 L4 _- K+ i - (if (/= endcone "order")$ J1 U5 e1 C1 h& a6 _0 A3 i
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) - O3 c% a* i+ ~6 r
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) ' U( g( o& {( `2 M
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
4 \ J; U; `& C5 H- y! r - (command "union" "l" e "")
" N& s: H) Q. [( o p x& p - (setq e (entlast))
' g: z4 G/ i+ P. p - )& U3 j" Z4 n) p9 N+ K
- )7 _& M& ?8 d% {$ ^0 a
$ J3 x1 L" z2 n- ; 从大圆柱中减去小直径圆柱
$ h4 t% H1 q% _! y0 Y - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
, F( w' G0 K* U2 e! I - (command "subtract" "l" "" e "")
/ T' \! c7 i" i+ Z - (setq e (entlast))/ B. c* ?4 K% W! N+ s: R
: g" N l! y1 I; u7 Q- ; 从螺旋中减去圆柱
+ Z( h' L/ ?& Q; u - (command "subtract" tstmp "" e "")" m: k! V6 h* K/ X0 i' H) E8 G o
- ; Y+ b0 |+ F) C* u4 k& J& |
- ; 如果螺旋长度为负然后镜像
; a- Y: [+ [# h' e8 ] - (setq e (entlast))
* b+ @8 ?7 [2 c8 c- o$ K - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
3 t7 d3 m a* ], r+ B+ b0 ^ - 5 e- v* Q% A8 I" Y/ D2 L! M
- (command "zoom" "p")) l m! Y# ]% r
- ; (command "undo" "end") ; 结束undo步骤; U7 Y) [2 g5 k C7 b
- )& G9 s) O ~: ]$ j
5 S$ \1 L' }% L4 J' g2 I6 r- ;;;---------------------------------------------------------------------------------------------------------------------; c9 i/ b& Q/ `: H) P7 Q( n5 x# ~; i
- (arxload "geom3d" nil)
8 `4 ?: x- b* p6 I' N - (princ " h6 {4 q0 p( L: M7 u6 M
- 3DThread 已加载。 ")
& O6 C+ S2 R0 _+ a - (princ); T( o+ a! b: _5 i/ A1 q A* E
: V. Z8 [4 w$ W6 s: N1 q: x+ ]) ?& I+ h& R; @) F& g
7 M* w! {9 M* ^% D/ d0 `三、弹簧源程序
" V/ w& O2 t, O- y* I! Z- (defun errMsg (s) ; 当命令执行时出现错误
/ |$ I/ p8 F' W$ p& B7 B - ; 例如用户按下了CTRL + C$ M# F1 r a$ [2 S, t
- (if (/= s "Function cancelled")2 K' c( R" G4 u$ F
- (princ (strcat "& s4 ?7 P% o& L# s2 X9 v! j, {, z
- Error: " s))1 G4 w; |; K: v* }% k
- )
: Y6 N$ X+ y2 P' K- T6 V - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
0 L/ R. X: w* j8 J7 E' d - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
% r2 b* Q# U& e1 ` - (setq *error* olderror) ; 恢复旧的错误处理
( S4 o2 D1 P* }9 e+ p - (princ)4 v( v1 `+ e; m
- )( o5 J* ]# u* e
- 9 O* u: u; n& }' ^ M/ n
- (defun spring (nRepeat cntPoint bhfac lr strad bvfac. m5 y/ m7 K2 y+ Y& U; ~
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)' N, S9 ?# q0 j' m5 B* P
- ( E5 K# I9 P4 A P
- (setvar "blipmode" 0) ; 关闭 blipmode
8 J7 D$ S0 r9 I+ | - (setvar "cmdecho" 0) ; 关闭 cmdecho
$ ?( r2 j! r: |( S+ }6 g% _ - (setq Pi2 (* 3.14159265 2))) Z, p5 ?) K+ a1 }& |7 S
- (setq aGrw (/ Pi2 lr))6 e' W9 ~6 P; I2 c7 d1 I7 @5 _
- (setq dhGrw (/ bhfac lr))6 ]) G4 Q" u2 i+ n) F% E! R6 ^7 ~; R
- (if bvfac (setq dvGrw (/ bvfac lr)))6 M" ~. ?& K( Y2 R' m5 c* s
- (setq angle 0.0)$ z1 t# R! O$ m: k4 Q- d
- (if bvfac6 n7 V+ ?. R+ l, F
- (setq distnc strad dv 0.0)
. r9 u* n7 I- \" {4 f7 b" F - (setq distnc 0.0)
) f& k6 p- O! f$ Z+ e) |( u w - )$ C) g7 j+ k0 a+ M9 f5 k
- (if bvfac
3 M& i5 X; {: _7 o* R% v( v3 { - (command "3dpoly") ; 开始绘制弹簧
5 A5 Z# q% }; J" z9 T - (command "pline" cntPoint) ; 从基点开始绘制弹簧
' i9 V% w* P3 C* Z) ~" z5 [+ j - )6 c0 `+ O) ~! B. B3 a% D
- (repeat nRepeat * @& g+ e, o' k
- (repeat lr 5 p& R9 ]: k8 I) Q9 C
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))
' a% [7 t% a/ `, R. J - (setq distnc (+ distnc dhGrw))
" I0 ~/ z5 S% p2 @+ B4 y+ l - )$ q Z% R1 B- e/ x' A& v, D
- )
2 {: [5 V" X( F" W) ?# h - (if bvfac- G$ e% m" [" s( W" v
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))! E5 o& [( U8 D5 N- Z& H8 ^
- dv (+ dv dvGrw)
% K- A. K- O4 u% B - )/ J9 B/ Y4 _) K% c9 W
- )
' i$ O& ?# x* {/ U; s - (command tp) ; 继续输入下一点/ u7 e" H7 z/ d
- )
4 _; O; H1 t5 Y9 N) ?8 q) |/ Z/ ?& H - ) 3 j, v/ S3 ~* c0 Y/ Q+ k8 E" f
- (command "") ; 输入结束0 H+ ^% ^7 K7 p$ k0 S ~
- (princ)" ]. z, P$ R$ A% k. t
- ) - w: ]; |9 r/ S5 X
- ' T+ K# c; M* t7 c
- ;;;( |* n J! W/ Z: C
- ;;; 生成三维弹簧函数调用接口
% R5 z* E# i3 X2 L, [5 h - ;;;
8 B" i) o: L2 x, d3 g# T) b9 l- V - - f4 Z1 w: V* v: o& P# P$ L
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
) X! R1 @4 q& H! I% P - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
' @' J6 g* r- t( |! _8 G) B - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复& z* M: s2 s6 x5 P& O: ]
- (setvar "cmdecho" 0) ; 关闭 cmdecho 7 B+ q4 R- g% i+ k$ T8 }1 i
- (initget 1) ; cntPt 必须非空# W0 H9 p/ c, e f& Y% D1 N
- (setq cntPt (getpoint "
; y. Q% S, U0 p0 W6 G* ~ - 请输入底部中心点: ")); ?/ d1 R0 w+ S! v# M& z
- (initget 7) ; RottCnt 必须非零、非空,不可忽略
2 M' E. C4 c( v+ c - (setq RottCnt (getint ". y. n( I/ m& }# {
- 旋转的圈数: "))
! j2 \8 X4 v: u) Q/ i6 D( y3 _ - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略! A6 E# J8 k0 [; M- [6 k
- (setq bgnRdtn (getdist cntPt "3 {% U s& g$ m: `2 j: x
- 起始半径: ")); _6 X# [8 a# P; e
- (initget 1) ; cf 必须非零、非空
/ `3 y% u, z- J - (setq horiGrw (getdist ". p5 G4 B g1 e l; V
- 每一圈的水平增长距离: "))
+ a5 C. V/ s9 U( b q% Q R% G - (initget 3) ; cf 必须非零、非空3 ]: |; H2 n' l: w# Z9 a
- (setq vertGrw (getdist "9 T% l. t; h' |8 P3 H
- 每一圈的垂直增长距离: "))
$ N" Y+ n- A" u - (initget 6) ; ptCntPerCircle 必须非零、不可忽略
6 D" O; R5 A; \- w0 H5 y - (setq ptCntPerCircle (getint ", B+ | ~0 i% h0 O5 @
- 每一圈的插值点数<35>: "))
: D* r; }! E$ I% Y/ o6 X - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
/ Z' ?. y+ K/ o/ y - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
2 |- |0 M# Y3 E - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
" |) K H$ x2 F! J4 @ - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值% D) M6 M7 ]/ e- Z1 @
- (setq *error* olderror) ; Restore old *error* handler
: N$ m& R4 Y/ d5 I; } - (princ)
0 O, `' k$ d1 A0 J7 @6 |! p' W
: o6 T/ O* }, S( x% l- ) 8 {7 K. M3 c! ~; y; s/ I: U7 z9 M1 N& `
|
发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
