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: ?/ ^1 x5 t" V& q$ ]
$ y; k7 Y8 U3 |$ y* g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：
e3 X' ^# r' C! U一、齿轮轮齿渐开渐开线) @& v( W6 a: ~" v7 `& ?/ z
- # {8 R1 U9 b: N7 m% K& B& U
- (defun c:gear(/)) `0 s) s; _: [6 u/ \6 k& F
- (; T' N+ J* z6 \
- setq
$ E! v0 i: ^8 R6 |1 x4 i* i1 d - p0 (getpoint"输入齿轮中心p0: ")
8 _- B4 i% H5 b6 o& v2 c: p - m (getreal"输入齿轮模数M: ")
9 O9 v* [7 h: j/ j" r2 u8 s4 X - z (getint"输入齿轮齿数Z: ")
$ o$ d' N( W L9 O$ U* h( p. a( i - ha 1 v- E/ V- }& F: z; m- l" N4 o
- c 0.25. e6 C" l7 c! w7 |0 }
- a (/ pi 9)
5 O; L( o/ T2 q0 ~1 F - ra(/ (* (+ z (+ ha ha)) m) 2)
5 y- H( l8 ]. \7 ]3 m0 O, I - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
5 {! E' n1 P W* S& S/ o; b - r(/ ( * m z) 2)6 `0 s- ~: u2 V# t5 g3 S5 ~) P6 o
- rb ( * r (cos a))& z* Z! z8 C8 L& ~/ O+ ] m
- ri rb
5 V2 i l4 w1 P, p7 c+ Y8 S - ang 0
# \& J- j- l* S, Y5 F - g (polar p0 ang rb)
) d4 G8 v, U" b - )
! `4 b' ^! K0 f7 ^2 O6 k - (command "circle" p0 ra)$ }: Y1 ?$ P/ o+ k
- (command "circle" p0 rf)) W$ F3 L% t; K6 P! ]
- (command "circle" p0 r)8 h! p' b- H+ i0 I: ^2 r" @
- (command "line" g)
* F4 {' ]5 C; n" A) J/ }" d/ s -
8 f9 t& u. A; Y! d0 c - (while (< ri ra): Z) l s) s7 U
- (setq
V& h- t' a8 s$ i - ang ( + ang(/ pi 360))2 S# U t, @# n+ s
- ri ( / rb (cos ang))
8 @/ f. d$ g9 q0 Q - cta ( - (/ (sin ang) (cos ang)) ang): \( n, I8 `' E. m7 Y9 j0 u
- g(polar p0 cta ri); k2 j* p* O. @' X, R0 ]9 H* F/ E+ q
- )( Z) C& T( u/ Z) l3 w" C
- & ^4 G7 z3 w3 E& P5 l* s2 C% u
- (command g)
* C4 L S9 ]; {' w& } - )
) ?" O* a/ }& k9 q& n - (command )
; x# t; q5 ` b- w: T4 N/ U - )0 ~3 M6 v1 E! G9 Y9 P5 Y
) a. K. L0 S1 _$ a. p8 X$ Z& K$ ?
2 H8 `! P1 K5 e; N( ~
' \8 K+ @! B- ]9 P' q. b( R0 {' {# S二、螺旋源程序( v" j+ F8 P* @# P0 Y7 c
5 `$ h1 u7 H. m& x4 i" m/ u5 ^- (defun errMsg (s)
3 g2 u0 R; i4 |8 P6 ]9 v - (if (/= s "function cancelled") (princ (strcat ", ? n- Q& O+ o
- Error: " s)))3 y) A2 ~; t/ o& N3 L4 ?, ^
- ; 当命令执行时出现错误
5 E. i: O4 G* W T; M" w. k - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
) A& u( ~6 N# b; J8 K0 v* } - (setvar "osmode" osmold)
~" Y2 h5 `0 S5 ^& R - (setq *error* olderr) ; 恢复旧的错误处理
& u- y; e8 ~' l4 l$ G - (princ)
. h6 F) {/ |6 e& @- Q ^ - )' ^, r% w9 X0 w8 K T- O/ l2 x* L
- , M1 {5 S- d) ~7 H4 d n% k" W3 @% |
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle " X( K) ?4 t, G+ W4 V& j
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
; d* U' M# _1 y" g' F - ;-------------------------------------------------------------------
. R n, Z. A& ` - ; 获取公制外径大小、螺距总长0 A; _# E3 q* L$ s! H
- ; 然后计算一系列几何点' l- o' y( t2 V
- ; 并且关闭对象捕捉、命令回显
4 u9 d$ y% E# |3 C" S - ;-------------------------------------------------------------------
* P1 F" \1 w" D0 j8 v - (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 o: m3 C8 h* S" m' v, G9 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)) , C) V0 G1 j' H) E# C) D; P
- (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)) ' F5 X% x: F* a C' \5 j3 h
- (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)) 7 \! H9 ]& `" l9 w) 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))
( T! j8 f K2 p1 }& ~' b - q5 v; x# T$ u2 Z
- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
# \ q3 a+ W0 ~: [9 v {+ @ - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值3 H& V& G3 `9 v5 K' |, y0 O
- (setvar "osmode" 0) ; 关闭对象捕捉 ; s$ T% H: F% d0 k9 K
- (setvar "cmdecho" 0) ; 关闭命令的回显2 R; N! R3 s3 V+ h2 \
- 1 _/ v/ I5 L c" Y9 Z0 K
- (setq innerdiafactor 1.5) ; 设置内径系数 U3 f e* b( B7 e: e' v( R: e
- (initget 7) ; radmid 必须非零、非空、非负5 h* `: Y8 o O; U
- (setq radmid (getdist "# m. I" L6 u2 U; k
- 公制外径: "))
/ B6 ?( v) k: ?5 N/ e- { - (initget 7) ; threadpitch 必须非零、非空、非负
3 N" y' V1 x V - (setq threadpitch (getreal "
3 D7 x- j' \/ f$ G1 E - 螺距: "))
" p, P5 v, q, z( g* ^ - (initget 1) ; ptStart 必须非空
2 p1 l8 ^5 T5 K' v( f6 S P - (setq ptStart (getpoint "
' Q+ p& k7 X; e2 s - 起始点: "))
3 @% K3 B9 O. b" }3 j - (initget 3) ; threadlength 必须非零、非空、非负4 V c, F* q4 w9 ~' h$ ]) l
- (setq threadlength (getdist "+ X( `# G5 E5 h$ h
- 螺纹总长(Y方向): "))
$ q2 C. N1 P% h* H - " t2 a0 z7 J: h% Z8 Q
- ; 对公制外径添加公差7 S& z0 @7 X8 E9 n3 e% T. i( `) ~
- (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
* ?, ~; h$ q6 v1 m! W - (if (<= radmid 6) (setq order 1)
' N9 u0 Z1 T! F- \; E6 d - (if (<= radmid 10) (setq order 2)
4 J. h# x0 y) b) [) i! K - (if (<= radmid 18) (setq order 3)6 b" t! Q! w+ x$ I1 G
- (if (<= radmid 30) (setq order 4)' `/ ~, p: `, P @
- (if (<= radmid 50) (setq order 5)0 k: T+ d: }% y+ l5 z3 z
- (if (<= radmid 80) (setq order 6)1 c, I4 L& `) K C, g% g: k
- (if (<= radmid 120) (setq order 7)7 t0 A5 P( h( m" B5 f* N
- (if (<= radmid 180) (setq order 8)
9 s ?+ r1 I, W - (if (<= radmid 250) (setq order 9)
* F4 w# @; S6 M" E. O: P. d& @5 _ - (if (<= radmid 315) (setq order 10)) `- o7 |6 r3 A0 E M
- (if (<= radmid 400) (setq order 11)
2 r6 H/ v- ?5 f& X7 C* { - (if (<= radmid 500) (setq order 12)3 ^: ?# y% ?1 ?% [+ V
- ))))))))))))), E7 E) u: T8 D( F( ?
- 5 V; ~; V1 w3 Z+ |
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带' J/ V1 ?4 n6 c% T% q: K* |
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
4 P. c( e6 B" t. @- r - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
# |" y1 K/ ?( _5 `7 R: v, ~ - )))7 w9 X7 u) W7 H1 B, ]
-
" z1 {# w* D" D; V) [- q - (setq h (* 0.866025 threadpitch)) ; 计算齿高
! L/ `& Q; e4 K - (setq radouter (+ radmid (/ h 4))) ; 计算外径! r2 T# F# c( H
- (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
% e/ o, ]* `& J( u& E - (setq threadangle (+ 30 0)) ; 计算齿顶角
' N# `/ U( @8 s4 W8 p ~
' f) A* G- K5 B1 f9 h- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数
* l, Q" j8 U* k' h6 Q
" L9 V7 K4 l, K0 n1 ^+ ~- (princ "* T5 r( E0 H& b6 b9 ]
- 三维螺纹创建完成")$ y: R1 ?' f( m7 _* H5 o# g0 u
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值: a3 }8 `9 i" [, F& X' j
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值* }) p2 L0 R/ H) C( @
- (princ)
0 _4 {4 [+ t- @" H+ \ - )6 `* A" r" P6 d3 c( S% W# f c
8 h2 O' X% S- F6 x- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
t8 J" f! V8 p1 @; y3 w - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
4 q: _$ e. r% r5 o4 j8 a8 [
* ], q/ _/ P* F) o9 D% p- ;(command "undo" "begin") ; 开始undo步骤
: L: g' h: ^1 z/ _1 i
; }" q- j2 w+ L' d; O7 q2 }- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)- V0 u& j- b; O
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart)): s& @/ H+ M! e' F
- pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))+ q& j) u* Z# H
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
, f0 r, E* M2 [ Q - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))8 h9 p8 _1 O. a* \& ~( T8 D
- ang (angle pttmp1 pttmp3), ~& V% [# ]7 a4 o" o$ \
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch) S& O4 ]+ G2 W+ B0 h
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0)), ?% B+ i$ E" h! E4 f) T1 N
- pt3a (polar pt1a ang radouter)% T% W( j M9 w& ^' D' D) v% C8 J8 S
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
' ?' R& H6 d5 w$ |- U! h3 B6 ] - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))% }$ W( D$ Y" c. n' s
- pt3b (polar pt1b ang radouter)
; \; J0 q1 g, m) ` - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)- e) q% x9 E' v9 A* ^. E+ m
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)* [. N9 i% o" n! b% S: b( T
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))% O$ i, e9 l) U e7 v5 b
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)* ^1 J9 G. X' n4 @
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
& ?) e% h5 r+ Z" J4 U" T6 O - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)+ |- i6 ^ y m) O" Z4 G+ N
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))3 c/ q& G. I( u0 B
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch)8 I& K: e5 G9 ~ O& _
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))* L8 E K& i, ~* B2 L9 W0 d; x
- )+ ?* y$ ?5 J; c
7 a, t( H$ a2 y- ;-------------------------------------------------------------------8 H2 q9 f n0 `, Q" _8 y
- ; 绘制两个倒置的并偏移1/2螺距的圆锥# m( g( z% ?2 h7 }8 K! V9 q- K
- ; 这两个圆锥都以中剖面剖分
" e! d/ f) y4 p f- ]1 p6 Y - ; 进行并集运算! S$ w8 ~ ]7 p# S" D; k3 ~
- ;-------------------------------------------------------------------! K" A' h/ u( h. X p6 U: t6 ^1 q
0 b4 F% l9 F0 q+ {; Q- (SETQ startcone "order")( c" F* o+ O$ z3 W, N* P
- (SETQ endcone "Y")
5 r/ }" D/ Z/ P! c" x' r8 Z - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)
h- H5 `: D) G# c2 Y
. z! ~: u$ S/ T/ y+ |5 ~- (princ "& s2 J! ]1 A& u5 }9 O" S. p7 g
- 正在绘制三维螺纹，请等待")
/ q3 V: T# h: K/ g. x4 x - (command "pline" pttmp1 pttmp5 pttmp6 "c")9 ?6 a2 |% p P3 p4 }
- (command "revolve" "l" "" pttmp5 pttmp6 "")0 N6 f3 d( B6 \3 d9 a/ m1 p: ^8 S
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
/ A* X, ~# M) A8 ?: O - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
1 B# V( ]1 X) B2 [" M - (setq tstmp (ssadd (entlast)))
, R4 g: E4 K) M0 ?; X5 l7 K+ H - (command "pline" pttmp3 pttmp9 pttmp10 "c")- v+ Q& B1 |% T% q* K
- (command "revolve" "l" "" pttmp9 pttmp10 "") D; a! j0 j+ ^, S& h# L
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
1 l7 I( h3 y/ b) j3 {; C' q% Y! B - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)& K, t0 P: T: e7 v
- (setq tstmp (ssadd (entlast) tstmp))
& @, `3 P3 Y5 K3 ~ - (command "union" tstmp "")* `4 T, g% i' Q: C( D* {
+ I' T( B+ o7 N Q$ H- ;-------------------------------------------------------------------
4 E# p5 e. D% w1 [ - ; 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
4 ~$ h) P- y4 v' Z0 Z2 }& F - ; 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5 K4 k5 J0 S0 n! _/ G* @
- ; 在最后一步被切除* [, H! D4 g, Q
- ;-------------------------------------------------------------------8 P. j& I. B( g5 L5 ~# r9 j+ @8 G; s
; i) ^% s+ |% F4 Q2 @5 S/ E0 B0 o, t- (command "slice" tstmp "" "xy" ptStart "b")2 C& d5 }% C9 e( f
- (setq tstmp (ssadd (entlast) tstmp))
3 `& X& t# W2 p j8 C) R. i C - (command "mirror" "l" "" pttmp1 "@10<0" "y")
% E4 o9 h( ~4 `: w$ ^7 }+ I - (command "union" tstmp "")
y% B; ^7 b( Z0 E% Z+ d( M d( ]( d
8 d6 J4 W" d: @4 b' G; F8 k- ;-------------------------------------------------------------------
! Y4 g0 E( S" a& K# {: x - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）
+ D) L5 s0 s0 C# R - ; 得到的实体再切除到指定的螺旋高度9 Q* u9 Y* J& A" D, o, Y/ R
- ;-------------------------------------------------------------------
$ r5 C' L- F9 H: [ - 2 C; h" K/ j3 |
- (setq e (entlast))0 F1 Y$ t) v7 [ b, B/ i4 I
- (command "array" tstmp "" "r" ttal 1 threadpitch)6 I% {3 L- N8 m+ L
- (repeat (1- ttal) {, _2 a: X# c r# P6 \' _; T
- (setq e (entnext e): c" K1 ] a( K7 V- d% i' y
- tstmp (ssadd e tstmp)
1 I1 c9 c. Q0 u; c: d1 A& s - )# x* A' N5 w& g+ l4 I, N
- ); r2 E F; ^3 G8 j3 L7 m' f
- (command "union" tstmp "")4 h- b: C5 W# K
- ) h2 w& r" x: V$ L, p5 D2 l
- ; 若开始创建45度的圆锥
0 R5 A7 p5 t/ Z x& M: B# N& ?$ |% k - (if (/= startcone "order")
6 k2 U7 E7 o2 _. F, F - (progn (setq e (entlast))
' n- V. b3 [! V' w" O8 m4 L4 D# C - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
4 O/ @9 v! ^$ X, C4 b/ D - (command "union" "l" e "")
- ^) ^5 B& p$ { - )
1 N( t! F _. o3 i! o - )0 ]0 l$ e- d& i. p
6 Q# ?% V6 ]. R7 }& g' q) W1 q- (command "slice" "l" "" "zx" pttmp11 pttmp12)
f; U( o" F! _' \ - (command "slice" "l" "" "zx" pttmp12 pttmp11)
, ]0 m/ V, k& N: w }) V% q - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart)))
0 O( O- w( B4 T ? - 0 F J: ]* U3 |$ `% g; \
- ; 创建最小直径的圆柱体，然后与螺旋作交集: G1 t( B, E' o; i+ q* P) C& a3 `
- (setq e (entlast))
! i- v- @. W! C5 q- l4 a0 W - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))! T6 y1 d: D+ U' {. Z
- (command "union" "l" e "")* P* P2 J, A1 }2 j- M
- (setq tstmp (entlast))
/ Q, T/ O; ]: w
# Q: z2 N/ y. K. _6 ?0 O/ ?7 O- ; 创建中空的圆柱体
' e8 r) }! e3 _+ Y* g1 u R - (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
* [ D0 j3 i l - (setq e (entlast))! Y ^/ J/ `& \$ {
- : \6 Z" G6 _& Y; d) d: }
- ; 若最后创建45度的圆锥
' N5 s f2 U' j6 u9 f - (if (/= endcone "order")
# [% Y5 O% W, A' L: C- f - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) ' V2 C# [9 ^# V# e7 c* {
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
0 {% n+ D4 {! ^% t% [ - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))3 `# W4 @+ E2 D- p
- (command "union" "l" e "")
! a' w$ c3 w/ x. d - (setq e (entlast))- f5 T. m/ |& a' c
- )
2 i0 q& S$ ]7 R/ E9 x) `; | - )
6 D4 t$ C9 Q( _6 W- h- l
" c5 m9 W% [- t5 s; A, V- ; 从大圆柱中减去小直径圆柱
, P7 b8 P; H, K: y+ `8 G+ I# F0 R - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
) @0 |. Z% r- i& w! q - (command "subtract" "l" "" e "")
; ~8 }% M" E8 I; b( Y( A6 R - (setq e (entlast))
3 J5 m( ^ ]5 m% g' g" o5 K - 2 u, k% P8 S% i" Q) A R, o# t: m0 ]
- ; 从螺旋中减去圆柱
/ t: O; I: i# T8 O9 v - (command "subtract" tstmp "" e "")7 I) K# k4 i" Q
3 Y3 [6 Q* S$ `9 i, q- ; 如果螺旋长度为负然后镜像
+ I& ?% L" ~* D9 c6 c X0 t4 W - (setq e (entlast))0 u, b2 O$ W% J3 _ K# Z! j
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))( }' T4 [5 Q% v; `. D% ^. B
- # ~" a( o- @8 {7 h+ N
- (command "zoom" "p")+ _% {- K, x4 c1 ?
- ; (command "undo" "end") ; 结束undo步骤1 F. }: y' ~8 H3 ~& X+ v
- ): v; X6 g- o. D' q
- 4 ~, l. K1 Q3 W; K& \
- ;;;---------------------------------------------------------------------------------------------------------------------;
0 b2 _, @! I+ _# @$ j - (arxload "geom3d" nil): x+ e1 S/ L$ b# s% P, O( E2 K y
- (princ "( b( U! E) ~8 N0 h$ T0 q
- 3DThread 已加载。 ")$ y( u" P# H V8 k& b5 k
- (princ)
2 a. y9 R, ]" S' }, h2 [+ ?. k( H% E
( O- T: i9 B- n: }" l; a- T; n) v( E! R3 v3 w$ o
: y* y) Y3 ?$ M* N0 m5 _三、弹簧源程序+ p5 V) o$ V! r7 h" j- y6 q
- (defun errMsg (s) ; 当命令执行时出现错误
2 S& v# G% Z }) E; d4 I - ; 例如用户按下了CTRL + C" X! {8 n. @! s' x
- (if (/= s "Function cancelled")! |' t. K- `" q, o0 p; _0 K+ M
- (princ (strcat "- `7 `9 c" I* n! I9 y
- Error: " s))
, Q5 P4 Q6 F5 |0 W' o - )
1 _1 ?$ G/ L3 p4 Z T! z0 W - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
3 Q' N6 C: H1 @0 `- x - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
0 Z8 M t) {) F/ [8 X1 d3 t - (setq *error* olderror) ; 恢复旧的错误处理
6 r) [+ C! N9 ^ - (princ)5 y8 ]& B; c3 @' p
- )
4 @ O s4 M5 b. ~8 s6 g% B0 Q7 Y - & N6 I; z' ~& g) W
- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
[3 O/ w1 m; M( z. m0 t0 W7 a - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv): D$ p# b* L8 ?6 D4 `
- , d" ?7 V( |( W; t- _
- (setvar "blipmode" 0) ; 关闭 blipmode
* b6 y, y1 L3 b! N% Y - (setvar "cmdecho" 0) ; 关闭 cmdecho
' Q9 s a$ S! N" |$ X" \ - (setq Pi2 (* 3.14159265 2))
. G7 p+ M$ m5 v) M - (setq aGrw (/ Pi2 lr))
1 B! A9 y, Z6 }; g" f: c - (setq dhGrw (/ bhfac lr))4 ^! r9 ~ N2 H6 {6 _: w
- (if bvfac (setq dvGrw (/ bvfac lr)))( `7 u- \/ e+ o2 y/ e, s2 H! v! y
- (setq angle 0.0)
! c: [2 R- a" W1 x, B: J - (if bvfac
. }. T, \8 \6 f6 u# s+ l3 O" G - (setq distnc strad dv 0.0), j+ |1 f* F8 u. Y0 {4 e4 [
- (setq distnc 0.0)
0 J' k; I1 g5 H - )
& B- h5 [6 C/ z' g T0 A - (if bvfac
9 B3 V; q! B% U# f+ w9 w" s" x - (command "3dpoly") ; 开始绘制弹簧% w' e7 ~- J4 u/ E7 P
- (command "pline" cntPoint) ; 从基点开始绘制弹簧
; I) J4 P& w1 ?) }" Q! a$ z# j - )) ^( b, E+ U1 ~' V$ |
- (repeat nRepeat
& W: T% D- s+ a" u# [ - (repeat lr
/ {5 p0 \! u- @+ n - (setq tp (polar cntPoint (setq angle (+ angle aGrw))
0 i5 V1 z; `4 _8 O/ ~ - (setq distnc (+ distnc dhGrw))5 ~3 \ ~* w0 k. K J I
- )
$ h- H0 m8 L+ |6 ~4 w! ` - )9 y* f1 c9 X2 F# | B5 @
- (if bvfac
. e/ s6 t5 a! W J1 l5 B; l5 ] - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
! X% q M6 d: ]. ^ D/ P - dv (+ dv dvGrw) A4 w! p' H7 y+ V
- )* R2 ^) S/ p7 J; K( u6 U+ c7 m7 w
- )( m7 c6 H0 m' o5 Q- Z
- (command tp) ; 继续输入下一点
) [+ Y6 Q n8 ^, c - )
4 i1 k* \! A+ B - ) ! z5 ]; [- K2 V. v* d! M+ C: c
- (command "") ; 输入结束$ \+ h# \' J6 p% R- H4 I4 B9 A
- (princ)" {% k1 _, t! L; j/ K, P/ ]
- ) + z& D6 @4 O+ \% C) ?" K( e
- , @" W# ]/ m/ n- I2 V: T% S) }: E
- ;;;+ ~6 d* J; F- s: x% T% B
- ;;; 生成三维弹簧函数调用接口
6 o3 C7 u9 z7 I7 [" X; J - ;;;$ G1 v: d- I9 Y/ t
- 1 m i( o \+ m, ~
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) - z9 |% ^( y0 w7 K8 k& @9 D: t
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
5 s w1 u5 s7 Y! m3 O - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复+ ^& V; l( c3 G5 Q0 [
- (setvar "cmdecho" 0) ; 关闭 cmdecho . s) ^( E9 Y% h0 B& @
- (initget 1) ; cntPt 必须非空
& W. O2 j% d R1 p) @ - (setq cntPt (getpoint "
4 P8 K6 `. d, Z/ X8 f! H - 请输入底部中心点: "))7 C$ l0 S! q A1 M/ {
- (initget 7) ; RottCnt 必须非零、非空,不可忽略 w/ Q/ R0 k4 w# F0 j1 C
- (setq RottCnt (getint "4 y9 q2 |. v5 l
- 旋转的圈数: "))7 O. `0 e$ @5 D" v7 m0 i9 H) q
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
4 l, x: l5 M- f( O/ v8 G! K0 | - (setq bgnRdtn (getdist cntPt "
/ {) q# a! a3 I Y) e, _# I - 起始半径: "))
, k6 q4 O9 l6 c( G3 E - (initget 1) ; cf 必须非零、非空
5 G; D" j- ]# t' Q f - (setq horiGrw (getdist "
7 V+ N, I, U' a/ U. D# m, S - 每一圈的水平增长距离: "))
7 f, j$ e! k; Z; t6 Z' M7 `" T - (initget 3) ; cf 必须非零、非空, ]" c+ I3 W v- ^7 n
- (setq vertGrw (getdist "
2 d: _/ `+ n8 Z0 ~ - 每一圈的垂直增长距离: "))7 t( l! L9 t; d$ V5 x; S/ m% X
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略
8 W9 m/ P5 @! w) I9 A - (setq ptCntPerCircle (getint "1 F$ ?4 [+ I9 e3 n
- 每一圈的插值点数<35>: "))4 Y7 X. e' y9 R- _
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) # Z1 m3 x& L) d' `" `, X% q( R8 ~) C
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
$ A% ~; O6 C. {& z9 c - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值1 j6 s1 h& F" B( {6 b6 T
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值( c, x+ b$ a' L9 t6 L7 j
- (setq *error* olderror) ; Restore old *error* handler
% [& {7 N8 b# g$ B/ k9 p0 e - (princ), h* B6 h, ?0 U! m' ]2 D4 F6 f
- # P! X) }9 E5 d# S, [% u' ]$ R9 W
- ) 2 q, P) w T. G) Z' W
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
