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! S* x, k9 U. {. I% k, v
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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：4 `, l; z/ v: n8 s/ b* |
一、齿轮轮齿渐开渐开线6 W" O$ i# ?- x2 M2 I
- 2 k) V. F3 g# e/ ]' l; P+ C
- (defun c:gear(/)
6 `8 f3 V4 P. E4 I7 W - (
A* }/ V( H6 i' c U O+ b/ r - setq
) K4 B. t3 s) j0 ]1 n - p0 (getpoint"输入齿轮中心p0: ")9 g6 P( }: i! ~6 c# ^' W. b
- m (getreal"输入齿轮模数M: ")
% d$ E& M$ |& e" ] u+ g1 d - z (getint"输入齿轮齿数Z: ")
# f: F- p5 w4 c - ha 19 K2 G: _5 M; L2 ]' U
- c 0.25
9 w+ s2 n$ z/ l7 j& X* }' H6 [, C - a (/ pi 9)4 p: f; X: a: ]0 ~% ^
- ra(/ (* (+ z (+ ha ha)) m) 2) m( ~1 o$ _. Y& ]5 F' U1 Q
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)- g; A+ K. a, d( ^* T$ \0 W! O8 v
- r(/ ( * m z) 2)
9 h5 @- k+ ~! E: Y - rb ( * r (cos a)). ]" }+ ?$ W) i- Q* X" T
- ri rb3 [5 `+ N: Z1 Q* w
- ang 0, s9 m* c. w& ~. p
- g (polar p0 ang rb)
6 j. U; U- Q1 i( d3 Y) g - )
; }9 B# K1 T2 m8 c, | - (command "circle" p0 ra)
+ ?; n/ [& t! p i9 R3 W( d" V0 _ - (command "circle" p0 rf)) ?3 Z9 ^- b0 |, m; V% Z
- (command "circle" p0 r)
0 Z2 N% F/ h& {) F+ M% n8 K - (command "line" g)) J9 E1 J& Z; y& ]+ o& \% X5 M+ T
-
$ x5 V _; j4 v; d - (while (< ri ra)
8 [# H3 N; ^2 C) h) W8 j) H - (setq! |* Z1 I. N8 u h3 x- y& e- K
- ang ( + ang(/ pi 360))
0 p* q, ?# J8 x4 W" ~2 c - ri ( / rb (cos ang))2 T, U) T: g& k
- cta ( - (/ (sin ang) (cos ang)) ang)
) r- P. c! I! s/ y - g(polar p0 cta ri)
: O6 [! |, `% x- |: ~1 N - )/ e! d) G" J% H) r
- 8 _1 i1 @2 K( \7 i9 ?
- (command g)
7 p$ N0 r* o' P2 y% P - )
# o( m4 ]6 s4 v4 ], X, R5 m. w - (command ) . G' R& H: M4 Q; S; S: X! i! J
- )! [. c7 _6 S7 [) q: S
3 f& A9 W, _4 C/ g' F6 e1 y( K* _# ~2 M7 h5 G, k
: q% F5 }, @$ N4 a# e! Q* O7 r
二、螺旋源程序
- ^0 G5 @, u' Q8 [
5 N) y% r) r& H2 k3 N3 T g- (defun errMsg (s)+ U9 M: q6 D3 @! M& s* I
- (if (/= s "function cancelled") (princ (strcat "' B% }& ]* S' O+ p
- Error: " s)))
* I7 s% ^1 \; } - ; 当命令执行时出现错误
$ e% t+ x) q" F4 ~* c1 n - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
2 V. f6 h, N) Q; I - (setvar "osmode" osmold)$ z! C# U$ L4 ^4 N
- (setq *error* olderr) ; 恢复旧的错误处理' e) m/ r4 V! A' S4 d/ [
- (princ)9 ?1 } T ^4 B H0 [6 c
- )
- i0 f7 f* i% H - ) k6 b+ x' e& z y3 L D! L
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle 6 [# Y! n" V5 i1 _2 V4 G
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)/ k9 N' ~; a+ |1 S' b4 |; @
- ;-------------------------------------------------------------------0 X6 Q- a3 A% @9 O# K2 D
- ; 获取公制外径大小、螺距总长
0 b% e' y8 F g. z* A- b - ; 然后计算一系列几何点
9 r+ Y8 H, h9 y - ; 并且关闭对象捕捉、命令回显
" \# [5 S! w$ J6 F - ;-------------------------------------------------------------------
* d* N C9 r% w; L - (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)) 8 |' Y( b/ p! U4 M: _% p3 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)) * m7 o' d2 }2 W- Z& o. J
- (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)) 9 q: @! H Q. a% v/ Z
- (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( ^" e4 A \9 ~5 W) A% [1 A1 R
- (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)) 5 \( t! `9 [5 @# I" |
+ d: l, D, a% b& k; L1 l- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值' a! C4 y( y3 ^$ J4 L. X* S$ V* f/ s& z
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
- }8 M( z( w6 X) V( x: q - (setvar "osmode" 0) ; 关闭对象捕捉
$ G: A- X( X5 {0 x! f& z - (setvar "cmdecho" 0) ; 关闭命令的回显
- F4 s( W3 O7 }( O" W$ T. F. a; {
4 n) p8 o: [$ G& u. q- (setq innerdiafactor 1.5) ; 设置内径系数
0 `! ^+ [0 }7 T- F/ W1 \ - (initget 7) ; radmid 必须非零、非空、非负6 {8 D" f/ ?- _. ^" x
- (setq radmid (getdist "' n& r9 s; W# h% o
- 公制外径: "))* C( D4 S- J2 `1 X. }
- (initget 7) ; threadpitch 必须非零、非空、非负1 H" ]* o% h0 U1 B) ~
- (setq threadpitch (getreal "6 M- Q1 o, U5 g; i" q
- 螺距: "))% h$ j" x9 H7 q4 @: Z6 W# L
- (initget 1) ; ptStart 必须非空& |# g$ R$ z7 J8 j% K
- (setq ptStart (getpoint "9 M8 j9 ^) x8 R" G" I7 }8 q$ c
- 起始点: "))
9 g i! t6 e. B# T8 Q9 h2 v4 W - (initget 3) ; threadlength 必须非零、非空、非负
' T) ^1 f" n/ R8 J+ ?& h - (setq threadlength (getdist "7 h* C( y& |# I# w
- 螺纹总长(Y方向): "))) v- r- W; Z- D% n
( u: j: C7 N: g1 Y6 P- ; 对公制外径添加公差
* r3 Y& _, P/ W; I. t - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
# n" e" a' d; q. b - (if (<= radmid 6) (setq order 1)
5 E2 c2 J- |. F/ S3 ^! _/ \$ D' U - (if (<= radmid 10) (setq order 2)2 J6 c/ R! v% `
- (if (<= radmid 18) (setq order 3)
: H6 @) m( e6 l# a! | - (if (<= radmid 30) (setq order 4)
6 V# ^" X+ D4 V- t G+ p+ z, v/ x - (if (<= radmid 50) (setq order 5)
% F% B% L0 X5 P. m - (if (<= radmid 80) (setq order 6)3 M' a; Z& O: q! v) J! i
- (if (<= radmid 120) (setq order 7)+ b+ e4 j% M! [. f* f. @" |$ U" |+ J' X
- (if (<= radmid 180) (setq order 8)
' | M* E0 b/ d L( a* Q K& W7 x - (if (<= radmid 250) (setq order 9)) b; G1 H* d) D8 r: X
- (if (<= radmid 315) (setq order 10)
( M7 O7 [" U3 E- R' G/ x! ^- q" n - (if (<= radmid 400) (setq order 11)
) ^: z3 A5 r: p - (if (<= radmid 500) (setq order 12)
* P5 `8 F/ W! v; M - ))))))))))))); e- V: Y5 p6 C. ^, f
+ s v" ?9 Z! U; m1 T$ s" o2 B: V% w- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
4 S) F( ~* d5 I( P9 x( h - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
0 d4 L2 g6 v3 \ - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
% z" J: L/ N1 g& i - )))
' y6 o- c, F. P( y$ Y4 d -
% O) t# s* E$ E% `% V5 l( f - (setq h (* 0.866025 threadpitch)) ; 计算齿高
, H4 m8 B& G; r8 H - (setq radouter (+ radmid (/ h 4))) ; 计算外径
5 x" g% }2 R* {' z( A - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径8 v! d# _ N* X6 K& O+ s4 G
- (setq threadangle (+ 30 0)) ; 计算齿顶角
: {5 @7 K8 o9 V - 1 c. |8 m5 T* v
- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数/ @& X$ B+ B, W0 e# a8 N
- # T0 I! @" i5 L
- (princ "$ w6 Q; v+ J/ b" m/ P# \
- 三维螺纹创建完成")) }; s o& p0 P- v' a7 G R
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
: \" Y3 z; Z2 T1 X - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值3 F5 [& ?6 V2 @
- (princ)$ u [) Y' ~9 h
- )
* s a7 Q/ }8 v0 d - 7 m j/ v$ s! O7 k& A2 W
- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a. D" |" D r# m: z' I' s) h
- pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)- o* R0 ~4 M9 k& Q; ^- Z$ e
6 f7 x. ^( m: c- ;(command "undo" "begin") ; 开始undo步骤
0 [2 w r- f, @' H" y/ z( t4 f
9 a* ]2 J/ W Y. @- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)$ E# n. z8 r9 C
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
0 o2 N( w3 y- T5 s8 ~" n! a$ C; J - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))4 F; b( C* m; p6 o# Y0 W; {
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)- G/ W x1 f( [3 j4 U
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
* b8 v, z$ i2 p6 Y l" T! x& i - ang (angle pttmp1 pttmp3)4 `: M8 p7 U7 \- C# c+ B! @7 B, o
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)( u: \3 u- ], s r; n! e5 F
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
$ j. z3 e: _/ |) t: b" Y2 y - pt3a (polar pt1a ang radouter) B2 g8 ^0 o' M: t
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)8 q9 A5 j2 o `3 F2 l- S
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))- Y$ M+ K" S. M
- pt3b (polar pt1b ang radouter)$ D L8 a' O2 o2 P
- pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)9 m C8 v& [# Y" B j$ [
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)0 U+ Q9 `8 F: z' G
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
9 Y* e" t1 F5 m5 @) Q' \' e% m - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)+ g X( o! y- V$ ^' k- v
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)/ F2 A i H2 O+ B
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
/ c) Q! T2 |' }0 y - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))7 j1 h- n' E" [3 Z: M
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
2 e( d% f3 S% o' j* S3 g" j6 S l! o - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))& R3 ]* N$ v0 o: u, O
- )
! L* M6 O4 u6 h9 b& c" v# k3 G& ~
2 x% Q- a4 L# q% P; `5 k- ;-------------------------------------------------------------------
3 s$ ^$ P1 t' |2 A/ ` - ; 绘制两个倒置的并偏移1/2螺距的圆锥
0 {8 N9 `4 y0 |: m - ; 这两个圆锥都以中剖面剖分
+ u: s" ` O% @9 _ - ; 进行并集运算! p: U- p3 g; J1 T4 E O
- ;-------------------------------------------------------------------6 ^3 @9 |' ]' z. p; C5 {3 q
- 4 a4 |- i+ F# a$ N1 v1 d! w$ P
- (SETQ startcone "order")
* j& H5 A) A v4 b - (SETQ endcone "Y")7 U1 q2 Z8 W, z( L
- (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b) U& k( w6 t6 J
0 \! }& I8 {5 @" {1 q- (princ "8 `9 Y3 D5 `4 m4 ]1 U5 L6 f
- 正在绘制三维螺纹，请等待")4 L* i4 P" ^2 A
- (command "pline" pttmp1 pttmp5 pttmp6 "c")% _4 {* N8 a |/ x% W5 b5 @: k
- (command "revolve" "l" "" pttmp5 pttmp6 "")) \' W! A; D' \7 i7 L
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)3 |+ G( g, g5 g
- (command "slice" "l" "" pt1a pt3a pt1az pttmp3)" a) z( t: k' s& v; |7 j; ?
- (setq tstmp (ssadd (entlast))); V6 {/ g! d2 C( O' X
- (command "pline" pttmp3 pttmp9 pttmp10 "c")
" E; E: |/ l0 E" m - (command "revolve" "l" "" pttmp9 pttmp10 "")
0 ]: M/ v: E" ~ H6 A - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)8 {7 v- ^& i/ w \/ P. w
- (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
& w& X4 j3 n$ |0 c0 T - (setq tstmp (ssadd (entlast) tstmp))
1 D; w0 X% b! [' Y+ b - (command "union" tstmp "")
* |1 {3 M0 ?2 ~2 z3 S" p/ _
' P0 @4 q& c* n5 L) w A- O- ;-------------------------------------------------------------------
' a- T0 v- P8 W7 V9 F - ; 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/ B" M( m( Y/ j0 P2 l5 {/ R
- ; 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 p( n' \3 M6 y. s - ; 在最后一步被切除
, }6 Z% a6 \6 u$ k% b& N% S - ;-------------------------------------------------------------------9 T" A l6 Z* f# U
) h1 z5 R2 j9 }, e' E H& g- (command "slice" tstmp "" "xy" ptStart "b")
" F! k% [* Z: d" i/ d W6 a' S - (setq tstmp (ssadd (entlast) tstmp))& R3 ]4 v$ h6 m0 d) Z% T& ~
- (command "mirror" "l" "" pttmp1 "@10<0" "y")+ F; _* F/ f+ z
- (command "union" tstmp "")
% h3 N) }8 u( E# L8 P/ Y' w - + E! t- p7 q* ]+ d
- ;-------------------------------------------------------------------+ o% r2 e/ Q# _8 l; _4 \- |# n
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）0 U2 P4 s8 }1 n: ?( q& ]! Q/ G
- ; 得到的实体再切除到指定的螺旋高度
, K4 g% F) G f- e - ;-------------------------------------------------------------------
) E7 j! o0 @" w4 J - ! c! ^1 G; s8 U5 t, d4 z
- (setq e (entlast))# M0 F1 g n9 I
- (command "array" tstmp "" "r" ttal 1 threadpitch)2 U' o' ? p! H! r2 w8 ^9 A
- (repeat (1- ttal)2 p' J z; M8 l. U( P) ]/ q* m
- (setq e (entnext e). A+ [% N) m+ E& g( R
- tstmp (ssadd e tstmp)1 C: a! _/ y. I) l) M7 [
- )% \/ t3 f: s8 V" p& z' {
- )' f K3 `4 H, |2 w
- (command "union" tstmp "")2 m6 b6 J& B6 [- Q+ k$ d+ V4 n
. B& d8 i! f" c! u- ; 若开始创建45度的圆锥
^5 n( ]7 @1 ` - (if (/= startcone "order")7 i2 A1 l, l2 M. d- @0 A$ C
- (progn (setq e (entlast))
) Q' D7 S+ G& n, S- B2 b4 F8 k H - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))* W, Q3 C# o+ m1 d; k0 Y
- (command "union" "l" e "")
! z8 H, M, G- O" h# B3 ], |; h - )3 u: M/ ?9 i% R1 Y5 \3 c
- )) ^& d& C% w: u% D
8 L+ W) }5 D* \' R' W# u- (command "slice" "l" "" "zx" pttmp11 pttmp12)
! I- _4 E# n& V, r( C - (command "slice" "l" "" "zx" pttmp12 pttmp11)# n, i3 k+ I8 r) ^' F- c7 r6 K
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) 6 E8 ^' _% K0 G2 e- b: e
- , c6 b7 p2 t b I
- ; 创建最小直径的圆柱体，然后与螺旋作交集) q; v4 w) O& k- X4 K, T
- (setq e (entlast)): B: E1 \, P! o4 U! E' e
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))6 D; u; {$ S! n. b
- (command "union" "l" e "")
) {# v6 ~5 s6 ?9 f- y: A - (setq tstmp (entlast))
$ Z6 \+ @8 j6 d, T5 p: B
6 p% M5 k& d2 K% E7 i0 N; W/ w) I- ; 创建中空的圆柱体
( P" e: ^, e+ y! O8 [* K6 f$ F - (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
! W' s8 E1 ?, `9 f! m5 L" Z - (setq e (entlast))" C$ K; n$ j; O. n/ N- j
# M ]' ^) p: E1 Q% m1 \) R6 z- ; 若最后创建45度的圆锥: I; ~( I6 W/ ?" \+ ^& a; [
- (if (/= endcone "order")) k/ L4 F: d) H$ O+ @; A, S) w
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) ! h+ ^+ M! \/ \
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) # ?/ x5 ?1 V7 A3 q9 c* R
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))0 i. I& i7 ]& n* G
- (command "union" "l" e "")
+ J5 f4 j2 ?8 H& {6 ~ - (setq e (entlast))" O: i. H- I- x# b; T8 Q: S
- )
) k" n2 g K% J" c - )
0 W; k0 k) C; O. R3 B2 I( e - 1 v1 I2 |) p% |2 M
- ; 从大圆柱中减去小直径圆柱& e& m2 a# a; L! N: s6 K, l
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
! S3 Y% n" n) Q - (command "subtract" "l" "" e "")
7 G2 V. q" f3 b - (setq e (entlast)): Z5 t0 p7 ~' N( V
7 w% H! |5 S3 p! A- ; 从螺旋中减去圆柱
- K+ X1 a. R0 H3 n" V! {; @ - (command "subtract" tstmp "" e "")
, J# q* w3 t6 ~6 e' A - # Q5 l$ {5 Q1 L6 R) `( \/ W
- ; 如果螺旋长度为负然后镜像
_" Y7 b- e, m: i0 l. O; ]: v+ G - (setq e (entlast))4 {: i' A" ], Y+ o7 _3 W: _* y
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
+ e7 E' y+ W: m1 |8 ~* K5 ] - : [0 M3 {" k- _" t; K& N
- (command "zoom" "p")
: L/ `& S3 T: |7 \0 i - ; (command "undo" "end") ; 结束undo步骤
; L3 ?4 g3 Y4 h0 L G- C - )
- n5 I4 a, | e- x6 m$ a2 p& | - # H( s0 [2 d) ?. T
- ;;;---------------------------------------------------------------------------------------------------------------------;# r9 k( C6 {- _
- (arxload "geom3d" nil)' Z C8 C9 c/ ~
- (princ "
e' ~" t% c- K- a - 3DThread 已加载。 ")" U1 q0 }3 ~) a9 n
- (princ). I/ v& ]5 q$ P4 E- L% n
# [8 Z K5 n. k
' B0 d* N8 a; Q& L9 X& u三、弹簧源程序( d- k7 B5 i, Z1 \7 q5 X
- (defun errMsg (s) ; 当命令执行时出现错误
/ l: L" t4 C w- @; m7 F - ; 例如用户按下了CTRL + C' {6 o2 m2 t; M; a
- (if (/= s "Function cancelled")
; h6 k: a/ F4 m0 P7 n2 n5 g% z - (princ (strcat "4 f$ ~8 c! Y. j2 G1 `* v4 r
- Error: " s))
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+ U& Y/ b' H6 I3 _# p+ c2 L6 ~5 c - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值9 {. J( L& Y; s9 P+ s r7 q
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值8 r$ t9 @$ f7 @
- (setq *error* olderror) ; 恢复旧的错误处理0 z/ n, u1 j! |7 H- @
- (princ)
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- (defun spring (nRepeat cntPoint bhfac lr strad bvfac. }/ y) w2 K9 g0 Q$ s& R
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)# Z4 { }. `! [. W
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- (setvar "blipmode" 0) ; 关闭 blipmode
3 d4 D" t3 l% [ - (setvar "cmdecho" 0) ; 关闭 cmdecho+ x' k; A$ g1 w( d: I; ^, I! C
- (setq Pi2 (* 3.14159265 2))- h; ]6 D& y' i }! d
- (setq aGrw (/ Pi2 lr))6 i* n8 B [1 d' [9 r
- (setq dhGrw (/ bhfac lr))
: s: I& a/ L4 N - (if bvfac (setq dvGrw (/ bvfac lr)))
( N S5 K2 V8 b- b# F* V a - (setq angle 0.0)
- q' D `# V% u, W- G. u5 S1 r - (if bvfac' ?3 I% A4 U) T8 t8 w; g" `
- (setq distnc strad dv 0.0)
5 T/ {3 M L* c2 Q - (setq distnc 0.0)
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- (if bvfac ' b2 E2 W+ `* `) ?3 I* x
- (command "3dpoly") ; 开始绘制弹簧
+ m7 p3 R3 V( k& l- b2 e6 l) ?4 o - (command "pline" cntPoint) ; 从基点开始绘制弹簧
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4 ]/ k+ t: ]6 e: Z# ]5 R2 f' r - (repeat nRepeat
8 w/ g _) d9 ~7 n - (repeat lr
9 S& T8 H- q9 Q: k1 e3 v, d _" s, Z [ - (setq tp (polar cntPoint (setq angle (+ angle aGrw))
4 \' i) _ @ T2 M8 n; e& o# | - (setq distnc (+ distnc dhGrw)): ?# R5 I4 \7 ~, B) w& W
- )
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- (if bvfac
: F! g. s+ A1 _/ k - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
; J: a7 D6 H1 s: g$ W" i - dv (+ dv dvGrw)+ f0 {. v0 X% U: J( G+ _
- )
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! r9 |- |; l0 J7 z( b/ } - (command tp) ; 继续输入下一点2 d+ H: z& ~6 S8 V7 Z! _9 u
- )
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- (command "") ; 输入结束
9 C; w- j4 r; O9 A - (princ)
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6 q# }8 a1 k! e1 r3 o- ;;;
( E% p. S8 X- q* b! e1 |& O3 M - ;;; 生成三维弹簧函数调用接口
" y, {& S, r% w( V - ;;;
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- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
) m, _5 `' `/ j/ |% ^6 t - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
; _. N4 @; P6 L$ u( J - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
6 h+ R7 R V: `$ |* g - (setvar "cmdecho" 0) ; 关闭 cmdecho ) `. W6 P9 c& {* V" o
- (initget 1) ; cntPt 必须非空
9 X5 n6 [4 t5 @) L! U* p - (setq cntPt (getpoint "% A( e6 @" B; ?& ~! Y }
- 请输入底部中心点: "))3 Z) q! U9 ~0 Q: j' H+ o/ ^0 B+ O
- (initget 7) ; RottCnt 必须非零、非空,不可忽略& l4 [- f; k# W H* B
- (setq RottCnt (getint ": \' m# w2 V0 t0 @: |& I* _# S
- 旋转的圈数: "))& Q. H! o, g. |- a# ~) L
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略5 [6 T1 @' E' \& q# i* k
- (setq bgnRdtn (getdist cntPt "
. T, F u+ I# C7 a# H - 起始半径: ")); W6 l; R4 q7 M7 @& r
- (initget 1) ; cf 必须非零、非空8 }" }' i: C( O
- (setq horiGrw (getdist "
; n* O" Z C3 i3 [ - 每一圈的水平增长距离: ")), V& n7 n& v6 [0 B4 T! g
- (initget 3) ; cf 必须非零、非空
. ~2 h' ?+ ], ~( \+ u M8 n6 d - (setq vertGrw (getdist "
" \% r/ B1 m N& w C4 Y/ H - 每一圈的垂直增长距离: "))
8 O( n( i8 k# L; @2 ?* _) W, D* z% Q - (initget 6) ; ptCntPerCircle 必须非零、不可忽略
: M" q) C. u. _! W/ \8 S" X3 G - (setq ptCntPerCircle (getint "
% a7 `. y: K. }( ?' n5 E% N, O - 每一圈的插值点数<35>: "))5 r, t8 L$ J4 q9 U6 {: C6 m
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) 1 x/ M: I2 d3 y0 P
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)' L3 v1 K5 I( U5 @$ R6 J; V
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值: D, q* j3 C# W# m5 v9 u2 w
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
; J4 S% D3 {3 V( z* n+ J - (setq *error* olderror) ; Restore old *error* handler& g" E% |0 y$ L
- (princ)
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
