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
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3 {" k2 K% P6 s& B# T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:% R8 |# ]3 L' z% x8 z
一、齿轮轮齿渐开渐开线
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- (defun c:gear(/)* ?& m& u$ z- U6 `/ |# ~$ X
- (
l- k+ w. v4 {0 `) S) { - setq
5 v: X& v6 L [0 E- x `9 d - p0 (getpoint"输入齿轮中心p0: ")
% {0 v% F) \5 f. E - m (getreal"输入齿轮模数M: ")2 F8 y/ @: n" Q
- z (getint"输入齿轮齿数Z: ")! V& o* f, H) r0 ^8 d, m1 \. T
- ha 1( b7 x* I6 _! b) G! x, V Y
- c 0.25
' \8 U& E9 {( y3 E% _0 I - a (/ pi 9)( F0 X! v- J( z1 a& B) n
- ra(/ (* (+ z (+ ha ha)) m) 2)
/ F* }3 w8 H6 b9 t% Q2 b) L - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)$ a1 a, G- O& Q
- r(/ ( * m z) 2)7 [9 E# i7 ^- v6 k
- rb ( * r (cos a))
& h4 Z" r o( N) @$ U$ z. C - ri rb
! [( u$ j# g, U& i6 Z - ang 0+ t1 n+ I1 P0 m# Z+ u9 ^
- g (polar p0 ang rb)
; N2 l# t* ^1 W* Z" ^- b - )
0 L. p4 i5 W% ~3 g/ \0 e& o5 E w' \ - (command "circle" p0 ra)
2 V& e$ ^) ?- d' S% c/ [6 C* Q - (command "circle" p0 rf)
) v8 e& @# N9 o7 g5 V - (command "circle" p0 r)
4 F* y2 S, `& R% X3 ] - (command "line" g)
; q8 U: j- U( H/ a# t9 V -
% ? u3 q5 s- A4 j2 z% I - (while (< ri ra)
l6 }. m+ p' h* D; S+ o! X - (setq
7 y7 d5 Y- _, A3 ^: }. I - ang ( + ang(/ pi 360))* n) a: H( G0 E" E3 @" t
- ri ( / rb (cos ang))
3 |3 `! g+ w" f; B$ h+ [ - cta ( - (/ (sin ang) (cos ang)) ang)
) L4 f$ f1 H7 y: H5 W7 y% a - g(polar p0 cta ri)9 I& {5 ^$ v( X% L! Z: i, H: p2 n" e
- )
5 y9 P( ^" @1 {( I$ _0 t7 L - ' n1 k6 {' m0 r5 T1 I
- (command g)
( q) P& m7 \/ k6 {7 U - )
* W% l2 K9 ~4 N# V - (command ) . D: K; g1 \( U7 C% _' G
- )
% j0 ~! E3 R7 ^( Q, h% N
复制代码
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8 x1 v7 s6 L* i" n7 P0 `二、螺旋源程序
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- (defun errMsg (s)
: _7 J3 ?9 ^( p - (if (/= s "function cancelled") (princ (strcat "7 Q* i# H$ { I1 t3 \
- Error: " s)))
* ~4 x5 [7 B1 g( C8 T) D( w - ; 当命令执行时出现错误
& a% U+ U: N2 k- f% O d - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
4 S4 k! J1 h$ o3 g$ }9 |) H0 j$ r- X/ G - (setvar "osmode" osmold)
, F9 @2 X+ E3 e0 P, V$ o - (setq *error* olderr) ; 恢复旧的错误处理
) h- ~, d6 \, ? - (princ)
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- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle 2 C/ n7 P6 Q# H' d/ n% b
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)9 R! M7 r {: |& u
- ;-------------------------------------------------------------------
4 s- J& D- @6 k$ s, e! m4 g' f - ; 获取公制外径大小、螺距总长/ T1 F3 M; v* @& s
- ; 然后计算一系列几何点
' J6 f8 I7 l' u) T* i9 O; Y- C - ; 并且关闭对象捕捉、命令回显
9 _$ B0 Y6 Z. F! m9 v - ;------------------------------------------------------------------- Z- w/ Y6 \6 {3 w# ^1 w
- (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))
2 Q* r8 @' j9 G8 b$ P7 A0 f - (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))
& H w8 }* W3 W: { - (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))
$ ]) ^ ], P( j* c" J) \, y1 I - (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))
8 m% [4 @2 [6 s2 i, [( w1 o: ? - (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)) $ h3 |1 c$ w# b4 s
' N& }+ V$ k2 Y% a; ?- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
2 T6 `: W* \7 V% S - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
$ I4 e! S/ U. R; U - (setvar "osmode" 0) ; 关闭对象捕捉 ! S% F$ d" k ` ~
- (setvar "cmdecho" 0) ; 关闭命令的回显0 Z2 ^- u3 E0 Z3 g, g( R
, }9 H9 T& F* O- (setq innerdiafactor 1.5) ; 设置内径系数
+ W: Z( B; G+ Y$ D8 ~! \ D; D8 a5 [ - (initget 7) ; radmid 必须非零、非空、非负# q5 R/ g) N5 {9 T- x1 H
- (setq radmid (getdist "
& n# ]" \0 j& I - 公制外径: "))& A, @0 O4 k' K: I; Y# w
- (initget 7) ; threadpitch 必须非零、非空、非负
. Q" P- I2 G- a; G4 a; O: N - (setq threadpitch (getreal "% o) U) | [7 z8 e6 |
- 螺距: "))
0 {+ } l r. n1 X - (initget 1) ; ptStart 必须非空
' i2 D' n# e/ P) r2 b - (setq ptStart (getpoint "6 J) n2 t Y& A1 d& f# ^
- 起始点: "))2 D9 h$ A4 d; Y G0 K% [) e
- (initget 3) ; threadlength 必须非零、非空、非负) h8 b o5 z! c4 S6 K+ F. u
- (setq threadlength (getdist ". z& s9 N7 d- @* v* K* Z7 q1 ?
- 螺纹总长(Y方向): "))5 H4 l2 H* O, j4 y; g
7 P3 J+ Z2 [0 Y- ; 对公制外径添加公差
" l2 x! v* F G2 q - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
! O m( l8 f: }8 R( i - (if (<= radmid 6) (setq order 1)1 v/ l7 w1 u& b* `
- (if (<= radmid 10) (setq order 2)
! n" G0 Z9 u6 w# B - (if (<= radmid 18) (setq order 3)
& W- I; p/ @ I5 W5 o! }/ Q - (if (<= radmid 30) (setq order 4)/ G3 r8 p* \# L, u+ M
- (if (<= radmid 50) (setq order 5)$ `2 ?, \: M) ~1 A& O8 v
- (if (<= radmid 80) (setq order 6)) g2 p0 n; V6 w# ~5 L9 G {
- (if (<= radmid 120) (setq order 7)- C( i Y* `' t, X" D2 A
- (if (<= radmid 180) (setq order 8). z# B; F/ b% R+ l* H" {2 }
- (if (<= radmid 250) (setq order 9)8 P6 J% C0 \; {" X' o
- (if (<= radmid 315) (setq order 10)3 c& ]( \- V7 m7 v; B5 K
- (if (<= radmid 400) (setq order 11)
9 h. i7 D7 j' W, |) y6 C - (if (<= radmid 500) (setq order 12)" j( k" L8 B& B
- )))))))))))))
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) G0 x, }, S. [- `5 `$ V- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
& F4 o4 G$ y) N1 h7 f - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))7 C2 S. \2 W/ ?/ ]$ ~
- (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
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- 8 E; x) K k" P9 ^$ b
- (setq h (* 0.866025 threadpitch)) ; 计算齿高) P/ x4 R: D/ Y. r
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
' ` I# h! R7 I) D* O - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径. P h0 ?0 f j3 ]( r$ D* b4 h2 x
- (setq threadangle (+ 30 0)) ; 计算齿顶角4 E5 U% O1 [* H- v. \3 [! Q0 U) w
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- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数
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- (princ "; b# u' N0 g$ d
- 三维螺纹创建完成")
3 C$ q2 i; b Z9 W2 c' ]) w w - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值. f4 u) |) @ I
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
; y) g" K a" J - (princ)" D! d# t, v% Y5 Y1 c
- )( H) s" V& U) [2 b
; D R. M8 y) ]- V6 d* K- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
9 [4 ]( D9 D4 ~% y8 W Q1 w6 B - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone): _, c; j3 }. Z7 P6 U6 w
- $ Q/ p9 M( E t8 B- W* U
- ;(command "undo" "begin") ; 开始undo步骤
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- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3): c- i# @2 }) B! B
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
. x- u. I$ N/ A$ P2 ~5 Y) r - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
& i( f6 G& ]! X1 h" {! j, n3 l8 u/ M5 n - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)* z2 k. A+ k5 b/ c; c ]4 D
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
( m6 t, r' n; u6 `1 Y W. D, r - ang (angle pttmp1 pttmp3)
5 a7 G% q4 m, h( b% n, u1 `, g+ ~ - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)( O0 E: F' Y7 t1 i6 o
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
5 G3 n4 R4 g1 M6 t; C - pt3a (polar pt1a ang radouter)
! N9 A7 m" q. ~ N0 { - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
! }" Q# H! R$ p# I5 A5 p! H6 [ - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))* Y) c5 }! |8 g# a) k: L
- pt3b (polar pt1b ang radouter)) A* I( T7 X2 c) d
- pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)8 P& u5 J! ]+ A- L& p0 W9 c
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)+ w0 U! r+ d l! H4 t# y
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
. ^9 h9 a D! `$ p" j" h+ W - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
. C1 r1 \5 O& G& u5 l - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)- a; V2 j2 f( w! h4 W1 e
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)' a1 M, N0 r9 p2 X3 @1 P& f
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))8 B" Y3 \9 u+ W: J4 c
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
8 `, Y& R3 ~5 c2 T$ B0 K - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))8 t( }, I0 Y1 o, E
- )/ Y, p8 C6 G. p
+ D# e" Z6 O g' l- ;-------------------------------------------------------------------
" R$ D4 }! c7 T$ L! t$ f - ; 绘制两个倒置的并偏移1/2螺距的圆锥4 a) `/ e7 e( M* b$ ]+ w
- ; 这两个圆锥都以中剖面剖分
9 l& H8 {8 W( q p' K5 y - ; 进行并集运算
; o/ v% [9 ]: r' v7 \ - ;-------------------------------------------------------------------7 z) k: Y/ H: t
- 2 ^# t' `: v& Y+ j9 s
- (SETQ startcone "order")
- j/ }4 k& F- ^6 T& u: ?; g6 a - (SETQ endcone "Y")
+ ~( n" d+ h1 e; z - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)# I3 K, W, @% d G" n8 ~' s
- 6 ^/ m. n6 z$ W. u; K9 e
- (princ "
8 R' e& ~1 s% h# K6 w7 e - 正在绘制三维螺纹,请等待")
8 f. J4 K/ Q: a - (command "pline" pttmp1 pttmp5 pttmp6 "c")
1 D) D9 Z0 }+ p7 R1 c - (command "revolve" "l" "" pttmp5 pttmp6 ""). E9 c) Z4 N) a: q1 g9 y& A; Y
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)# W& T& l g1 L, `/ _$ e
- (command "slice" "l" "" pt1a pt3a pt1az pttmp3). m+ |( y. U9 w
- (setq tstmp (ssadd (entlast)))9 S5 d4 }! j/ O/ I2 a: ]
- (command "pline" pttmp3 pttmp9 pttmp10 "c")
( e+ [7 Z. E. P6 _6 L+ ] - (command "revolve" "l" "" pttmp9 pttmp10 "")# ]9 j7 L q8 ]8 m+ I
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9): g; k0 P8 m( @6 d
- (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)' Z5 M' t' q7 I& N
- (setq tstmp (ssadd (entlast) tstmp))
& U& S1 P6 n1 P - (command "union" tstmp "")
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' i& W( v' l4 _6 @/ G0 J. [# X9 Y- ;-------------------------------------------------------------------0 ^. D' ^7 r0 Z
- ; 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" D2 x. J; q+ E" T
- ; 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( ] D8 K2 x. k. j1 d; I - ; 在最后一步被切除
5 v4 \4 d( ?9 X - ;-------------------------------------------------------------------
* N5 a' e- T1 R6 e/ v+ v% R: T - 0 O) V9 x6 o8 e2 j% e) G, d6 R
- (command "slice" tstmp "" "xy" ptStart "b")
% B& f: R/ ^7 v - (setq tstmp (ssadd (entlast) tstmp))
% W. G7 I) z6 g* y4 W1 l. W4 O6 P - (command "mirror" "l" "" pttmp1 "@10<0" "y")
5 A* T! G4 L. N7 T% E" s; W+ k! [ - (command "union" tstmp "")1 I7 m V. p6 p2 S7 q; I: k" E
- : l8 j9 @: R1 r; B) E6 F4 a
- ;-------------------------------------------------------------------
1 D4 _# h$ @ L. V2 y3 l7 o - ; 螺旋进行阵列操作,然后再作并集(可能会耗费一定时间)
3 F1 R- Q4 l- I4 C - ; 得到的实体再切除到指定的螺旋高度
: d7 }1 P5 x, O+ Y" B+ K( D; E! |; y - ;-------------------------------------------------------------------. I2 s9 W# H1 z4 }6 ^$ [' g
- 1 N8 G3 v0 `3 }5 A% i9 w- H: R
- (setq e (entlast)), w% v: | B( M Y7 l/ w, Y+ H
- (command "array" tstmp "" "r" ttal 1 threadpitch)
?* o& S1 }# y% g0 p - (repeat (1- ttal)' `. W, I, i, c
- (setq e (entnext e)$ o1 [6 z, e; u! l% k9 E- `
- tstmp (ssadd e tstmp)! j* Z1 h) r* v4 f
- )9 H6 @2 |2 [( D8 k: B& B: ^9 [9 W
- )2 o0 P) G1 S! S6 c1 k, Y4 Y2 z
- (command "union" tstmp "")8 z0 \ S2 H* t: N( h* I
- - y$ W9 G. X0 b3 R" U# @
- ; 若开始创建45度的圆锥, |3 I* _- z& ?* @+ s4 v
- (if (/= startcone "order")/ }0 e( X8 l m5 _$ W
- (progn (setq e (entlast))% m9 {8 V4 \! `3 {% u7 _# N
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
& P6 _; g# ?9 M% G; t - (command "union" "l" e "")2 G) R1 N% ^. f% z' g" s- P
- )
$ _/ u4 c5 J. E4 K! {$ t$ W: u - ); A$ L6 Z. t+ f7 q& i$ t
8 D; ]- Q5 ^4 O; e6 I8 V; ^- (command "slice" "l" "" "zx" pttmp11 pttmp12)2 Y. ]& B4 B- |
- (command "slice" "l" "" "zx" pttmp12 pttmp11)% i7 F8 B3 i9 Y( T$ _4 ?0 `/ {
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart)))
4 h0 y9 L ^5 m' {1 D - ) d2 U6 G0 X' M |; E6 C
- ; 创建最小直径的圆柱体,然后与螺旋作交集
; `* S4 r' I8 H" K& |8 C# a - (setq e (entlast))
/ @ g6 {) i. O; z - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))+ z5 _+ h- b% O& g% U
- (command "union" "l" e "")
' n W4 d" e9 q' i: Z. { - (setq tstmp (entlast)): i6 A8 Q$ x$ O2 G
- , l0 W( Q( ~. w2 t7 i3 ~) ~" E
- ; 创建中空的圆柱体
3 w: u2 ~! V6 M5 X( j5 @% L - (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
4 ?( y. Q" W$ z - (setq e (entlast))0 n1 ?% @ H' D% [% J' H& n
- ; x( y/ g( I4 q, C, q% v
- ; 若最后创建45度的圆锥5 J9 C9 [) S8 ^+ Q* p& {
- (if (/= endcone "order")# H7 u: a( y4 b- z; {( y* e1 A
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart)))
9 n2 W" L* _; V' @8 [4 i" X - (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) 3 T) V; T" g N0 M
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
) ?8 ?4 d+ Z8 k( y' |, V4 J - (command "union" "l" e "")
4 j) j2 u9 v, h& y - (setq e (entlast))3 v) n; W5 c% t( X( ]: e. o
- )
5 n+ v9 S/ o1 x/ l8 e, j - )
1 j/ j# N. e& b' v1 ^) T
z) S5 U! A5 E6 }! @7 K- ; 从大圆柱中减去小直径圆柱
- H8 m* p5 u' Z0 D! @ - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))8 W2 w& V% T* x5 d
- (command "subtract" "l" "" e "")
) Q# W$ M( I& L+ u' H- L - (setq e (entlast))# d' ]' @5 t3 E
" h8 t3 p+ P+ D r1 `6 H2 z- ; 从螺旋中减去圆柱; c9 E; c1 j; w8 Z- C9 W3 `. \
- (command "subtract" tstmp "" e "")0 f& U3 k* l# G$ F. `
- 4 f6 o4 |& v$ P4 {1 {3 O9 `- D3 q
- ; 如果螺旋长度为负然后镜像% d! C+ u9 R* u! H/ A# n( ^) ^* u
- (setq e (entlast))
) V! m4 z t! A, i; f5 J - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
7 @9 t2 d) ~+ T( T. a& [5 e6 `
) o; _' m# }$ M& ?- (command "zoom" "p"), T) O" S7 m+ ?) r- ?9 Z/ d# o
- ; (command "undo" "end") ; 结束undo步骤
& g* _) {- [& h - )0 w/ n: P. S8 e' \3 T4 I2 i6 k* U) u
- - M1 x! y5 z7 [6 b6 M7 Q
- ;;;---------------------------------------------------------------------------------------------------------------------;* c! L, V/ S5 T) Z3 W) R
- (arxload "geom3d" nil)
1 \3 C7 C0 p8 {- Y% e3 q( R( h - (princ "
/ ^, z8 g! W3 D - 3DThread 已加载。 ")
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, I/ {; s/ `+ u/ n9 `3 [三、弹簧源程序
2 j0 u6 S/ R* F8 M0 r3 q- J1 R' n6 o; c& R- (defun errMsg (s) ; 当命令执行时出现错误
8 Q! A6 p1 ], y7 V- X" B7 c - ; 例如用户按下了CTRL + C
7 D7 _: }1 |+ [0 J7 }& {( Z! c - (if (/= s "Function cancelled")8 p8 U/ l/ I/ U% d
- (princ (strcat "0 E* f$ G4 C% Q
- Error: " s)); n( L' e' k! e5 ]/ N, @' S6 d. w
- )
4 u1 G& n/ e h: ?* l/ h( {! i - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
5 S* N* o$ I+ N5 ^ - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值* {/ j5 f" t* U. y6 K
- (setq *error* olderror) ; 恢复旧的错误处理
8 t' n5 y, e1 d& j2 { f5 G - (princ)$ J) {5 J. x/ |9 R9 q+ ^$ h
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2 D: J! ?! w# X( w- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
4 [( M7 L1 k( Z7 w - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)0 \5 Y# v" }( m- G# ]9 T
" X1 l; [6 C( [5 |- (setvar "blipmode" 0) ; 关闭 blipmode
8 g) k Z9 e- [2 r5 F6 T$ ?& |3 S - (setvar "cmdecho" 0) ; 关闭 cmdecho
$ H6 }$ H7 N: O6 Z- M - (setq Pi2 (* 3.14159265 2))4 _' j" y, ~; s4 o* [- V
- (setq aGrw (/ Pi2 lr))
5 X$ u/ A I$ }+ \, _# ?' k, g4 X - (setq dhGrw (/ bhfac lr)): t7 @. Q- k! x$ w2 C( M Q
- (if bvfac (setq dvGrw (/ bvfac lr)))4 e4 j: m0 y) Q- @: Q+ m, l `
- (setq angle 0.0)
. Y, k, ]4 @# L) W4 I' S4 @ - (if bvfac# Y6 E. D/ w' v
- (setq distnc strad dv 0.0)
2 Y6 x8 q9 H) W - (setq distnc 0.0)" L; B6 b7 m7 y$ ?! J, k. {8 \' t
- )
$ H5 C, ~+ r T! U - (if bvfac
6 r7 ^; k% Y) @! V - (command "3dpoly") ; 开始绘制弹簧; R0 u4 t) k2 o) d
- (command "pline" cntPoint) ; 从基点开始绘制弹簧& |$ i, k' o# G7 ^8 z4 Y2 {
- ) i+ K t: ?; l! Q0 k, _1 G
- (repeat nRepeat
# d! c5 k9 e. |" L9 { - (repeat lr
& z! v# Z/ B& c) ^3 K8 l( G - (setq tp (polar cntPoint (setq angle (+ angle aGrw))
. G1 i9 ?# [& e( i - (setq distnc (+ distnc dhGrw)). J) N6 x( C; y* L7 c" Z1 F
- )
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- (if bvfac
9 H3 U% w% H L& T* Q# V - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp))); E: E3 V! R3 x1 Z0 M- w% Q
- dv (+ dv dvGrw)
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- (command tp) ; 继续输入下一点
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- )
6 f3 F: x8 V9 ~+ |! G) `) ^ - (command "") ; 输入结束* o8 b: Z* j" S, M; L% @8 S
- (princ)
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' l2 f7 B4 n8 T# q. P; Y0 R - ;;; 生成三维弹簧函数调用接口
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% ?1 e, P, n$ S. |% z% T- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) + C& u! p. f4 K
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值,以便调用结束后恢复( e" C E# O9 I7 m% n
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值,以便调用结束后恢复
3 L# k+ y6 {# e - (setvar "cmdecho" 0) ; 关闭 cmdecho
; Z! M5 Y# a! Z# ` - (initget 1) ; cntPt 必须非空# V4 e2 h" | L# F
- (setq cntPt (getpoint "5 j7 A) V8 D) H$ W8 a
- 请输入底部中心点: "))* z4 v" z z! A+ D- D! w
- (initget 7) ; RottCnt 必须非零、非空,不可忽略" a9 F* Q! K- x
- (setq RottCnt (getint "9 N: t* o A f4 `. N! g, e" i
- 旋转的圈数: "))9 t. W4 y0 r- C( h: [
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略2 u. \9 w2 R1 G0 M0 N
- (setq bgnRdtn (getdist cntPt "6 d4 Q/ \: n( x$ e# I0 w4 I
- 起始半径: "))# i" E4 `6 l* w0 M5 |6 Z
- (initget 1) ; cf 必须非零、非空
, Q: C1 Z4 W S O0 U8 C - (setq horiGrw (getdist "' b. N f6 T5 x+ @; u
- 每一圈的水平增长距离: "))
u6 d% V4 s) i( n, W - (initget 3) ; cf 必须非零、非空
: B7 }' G) Q0 @/ `2 R - (setq vertGrw (getdist "- m( \4 V$ z5 N
- 每一圈的垂直增长距离: "))
8 Z" r, Z# U& O3 v8 j" B - (initget 6) ; ptCntPerCircle 必须非零、不可忽略" o1 ^& d. ^* D$ ]9 f D
- (setq ptCntPerCircle (getint "
; v) n9 a; T7 W' A2 ~; t+ F+ k - 每一圈的插值点数<35>: "))( D9 Z# `5 A, F1 Y+ ?! |1 ?/ d
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
" @) o$ P" i4 K. g+ x3 B - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)* X. e% }" ^3 }7 Q1 ?" Z
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值- ^! K7 y! r3 O9 F" C: i1 {+ {
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
$ z2 U8 j. n: Y- U; d& I2 { - (setq *error* olderror) ; Restore old *error* handler
- e% T1 r8 Z' X6 a5 e% B - (princ)
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