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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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：
* @8 Z2 N L. ?! r S* ~" y' a" w一、齿轮轮齿渐开渐开线
+ O7 M9 D9 F; u# p. `- Y- # H9 I2 i/ B7 a% p( X
- (defun c:gear(/)% x4 Q# F4 k/ ~: W4 j1 H% s
- (
( d4 U7 e, u" w# L& g* |1 H - setq3 z; K( n% ]) a! u" z# w
- p0 (getpoint"输入齿轮中心p0: ")% C: Y$ c9 J; ]" m, g
- m (getreal"输入齿轮模数M: ")
) e: n' Z7 s) l: G# g+ m - z (getint"输入齿轮齿数Z: ")
& }0 W1 C$ G4 ?/ R - ha 1
4 h, m9 v) {/ R" h7 W3 x - c 0.25. n% S8 s: z% V+ _
- a (/ pi 9)
- Y f( o T+ _7 w3 q% T2 m2 S; V - ra(/ (* (+ z (+ ha ha)) m) 2)8 d1 ~' S: g7 A5 N8 z7 B
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)6 @% G& { L) u/ |2 k( g
- r(/ ( * m z) 2)
, D* u- |7 V- S - rb ( * r (cos a))
+ Y2 H' |- V7 v" } - ri rb
3 ~- n2 {; ]9 G8 N( [% ]( b; ? - ang 0
( n# e/ V5 I( g. X# {. r5 C7 A - g (polar p0 ang rb)
- v2 x- ]; w3 e) _1 e - )
) z/ Y- \3 f& H9 k1 D X9 E - (command "circle" p0 ra)
% b" \. j' p$ F b - (command "circle" p0 rf)
2 u! d3 O' I! _ - (command "circle" p0 r)# y: P; S u( T7 u! l$ `: i) M
- (command "line" g)
8 l5 S* i. r- Z1 ]3 c% n - + B+ k( J" V" \
- (while (< ri ra)
* p5 W& `" s; D - (setq K3 g6 `, C4 X) @3 V
- ang ( + ang(/ pi 360))2 \; i' Z. E+ H1 c+ T
- ri ( / rb (cos ang))( l1 q$ j. T$ f2 ~
- cta ( - (/ (sin ang) (cos ang)) ang)) f4 b- C& Z1 Y8 x, }& {, T/ S0 L
- g(polar p0 cta ri)
) l5 R* Q( q, j- d7 | - )" Q( |9 `# o: i% d9 Q1 b; N, {+ P
- " S3 r( }0 s' ?, t) v9 s
- (command g)
5 k3 S; J( `& I. S4 X/ A7 i) x - )
( I/ }6 R; Q: G3 ^: n3 [+ h - (command )
- k0 N( ^( y& L+ Y. a - )/ N. @8 c8 v# D# b& i r
8 S/ M" b9 Z4 P+ B T' d
, C2 a% l# E% i6 U
6 r$ W, V& h& V8 @* Y$ O2 C二、螺旋源程序
+ ^- \& q. d7 u9 ~- Z2 ^
. `. C, W& ^4 G# B- (defun errMsg (s)
! q" {4 Z: D) B5 c5 M" b) U6 ^ - (if (/= s "function cancelled") (princ (strcat "8 I5 d+ w% i! i) J' u/ g
- Error: " s)))
9 |6 S* @7 I$ B$ k, T* \' ? - ; 当命令执行时出现错误4 M1 G1 b; b( Z
- (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
2 z$ m' @8 T2 t) e1 n) t - (setvar "osmode" osmold)" n _5 E. b( Z
- (setq *error* olderr) ; 恢复旧的错误处理
2 H7 W6 ]; r* n# s# P, h/ Q Z - (princ)- X ^, A E3 \" _) k
- )$ q8 g4 h2 Q, [9 H- \: E% C3 v1 _- D& ^/ |
. i X! y% B o# O% I- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle
i& d: R. I) j - ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
( g9 B/ D8 |3 L( y. P4 |) j - ;-------------------------------------------------------------------/ R. F1 A8 V) `* w
- ; 获取公制外径大小、螺距总长
% y e+ ~. k9 M: E2 B7 B - ; 然后计算一系列几何点
* d! @4 i! t5 W% A# C1 ~; j - ; 并且关闭对象捕捉、命令回显
* o6 b' ?! j7 F. s1 f3 u - ;-------------------------------------------------------------------
) A. L' ?1 `' ~& ` - (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 H. @* K1 j) Z8 z& A+ S - (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)) ' i& [$ \" Z/ t/ p7 Z% V
- (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)) 1 [ g5 h, q" m5 D' D
- (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))
) M* d; P# t2 x% g, q/ T" u - (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)) 8 z! ?4 ~' a& `- E7 V% e
# }( o6 f2 M& { [7 c- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
2 n0 |! q! a; ^+ K, z - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
7 e1 ~* C( H2 s- h @ - (setvar "osmode" 0) ; 关闭对象捕捉 ! J* O9 ]8 y; z6 T" _: d
- (setvar "cmdecho" 0) ; 关闭命令的回显: z6 o: }( _* K- _, P5 R( |
9 ]. T0 Y* n, H! b+ M9 c1 N2 h- (setq innerdiafactor 1.5) ; 设置内径系数
( [3 Z% o4 j' l* x6 ^ - (initget 7) ; radmid 必须非零、非空、非负
' L; [& d: N6 m+ Z" g- n3 o - (setq radmid (getdist "4 M1 I# L* W. [, f# y6 y
- 公制外径: "))
/ Z( u- K5 G8 ~) e% P - (initget 7) ; threadpitch 必须非零、非空、非负' A+ m3 i; N" o6 ?9 c( D* i
- (setq threadpitch (getreal "3 s4 j$ }; W1 e
- 螺距: "))
2 a8 C8 e7 Q9 q/ N n2 v - (initget 1) ; ptStart 必须非空
/ P0 _7 f/ c9 j9 G3 N3 p - (setq ptStart (getpoint "
' R7 U: V) z. c/ E - 起始点: "))! `# z6 e/ Y4 a2 T- y" l, Z
- (initget 3) ; threadlength 必须非零、非空、非负
$ c* H, n6 x S* ? - (setq threadlength (getdist "% A, C7 f6 p5 E! Y c0 u
- 螺纹总长(Y方向): "))# a- {, m7 t% F
- ' d5 B7 `/ l" {4 l' }, n+ P0 p1 M
- ; 对公制外径添加公差
5 ^+ p+ P* B& O$ g- E4 t1 W - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
8 h' p" g6 I% M/ l1 E& ? - (if (<= radmid 6) (setq order 1)7 E, ~2 T/ D( E4 h
- (if (<= radmid 10) (setq order 2): r4 Z, F0 k( F0 y$ D* n6 @
- (if (<= radmid 18) (setq order 3)1 G5 w. c7 k7 }, ~1 [7 d( _' }
- (if (<= radmid 30) (setq order 4)8 M+ Y- s+ O S- ~- D3 ?
- (if (<= radmid 50) (setq order 5); j* _. ?4 T, T9 K
- (if (<= radmid 80) (setq order 6)
5 P" g* j. V& ^; t, D6 A) V - (if (<= radmid 120) (setq order 7)1 }& V H* ^. Y% H) P) m
- (if (<= radmid 180) (setq order 8)
# I) R/ {& y9 d. E - (if (<= radmid 250) (setq order 9)
% z$ ~' p' z! ^ - (if (<= radmid 315) (setq order 10)
1 y) M, D9 E+ M4 m - (if (<= radmid 400) (setq order 11)! K) X- H$ ~, _0 V9 z: c1 c F
- (if (<= radmid 500) (setq order 12)8 e) V" {# O* Y5 a# ^3 d
- )))))))))))))& x* N) ]/ {$ N- W, T: m) T
- . `1 g* v# q4 y- f# k9 C
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
: r4 x9 o5 F4 h) T* Y - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
, O# X4 B# x3 e - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))6 Y- S9 n) c; E2 Y2 ^5 d
- )))& x4 {% R( X: y9 P' G1 D4 v$ @
- 4 ^4 U" y0 m/ n. F( N
- (setq h (* 0.866025 threadpitch)) ; 计算齿高1 t8 f5 X+ u% k# b/ x5 ]
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
2 l7 @5 g* v1 k& L4 |1 q - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径) C+ b. S: @& n
- (setq threadangle (+ 30 0)) ; 计算齿顶角6 e: n- d N; }+ D8 j; K
- + v: a6 L# c" y/ {0 N7 e; z
- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数0 H# }) J8 w' v3 A( {
' H1 p% r& C7 `$ S8 t, U- (princ "+ ~' [6 X7 @" z- |# y( e
- 三维螺纹创建完成")* I; k# U/ c& z, K, a4 R
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值- q( M1 |" \+ Z, \1 x
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值# ?/ D, U* X1 h9 n
- (princ)
& L9 g7 r6 t/ { - )2 F- j# @* k1 T r* o, W b
- * X: ~) f5 S2 H5 H
- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a- Y) b) ^" J9 t4 v
- pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
/ X+ i% ^! M+ @
7 C! z. n1 K$ |- K- ;(command "undo" "begin") ; 开始undo步骤
7 h( S6 r l9 \2 y z$ e% K/ O" U - A2 }; _, q; K0 A% h
- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)% @( Z1 J- E* R
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
6 `+ Q6 M! I$ j4 |6 ? - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))4 {8 |5 U3 [% S( d$ W3 R$ S
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
y" g) R Z. d& N9 n# k+ G - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))1 O8 Y( K5 p: N! e0 Z
- ang (angle pttmp1 pttmp3)# u$ a2 J* ~; [" h
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch) D. ^: t7 I7 g; x7 d8 e2 g+ C: a
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
* r. z2 A% g& L# U% e - pt3a (polar pt1a ang radouter)
6 S" M1 a1 g3 ]% g7 D1 c* R - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
* r! X5 a: `) ~5 `* d: U, L, b - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))
, O& }9 Y, _/ G2 B2 ?( V - pt3b (polar pt1b ang radouter)
* a! F! Y- e' I: ?) c! Q; L - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)# A# J& x2 J- I% v; l
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)4 c* U; B `3 q& Q) \; ~3 h
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
/ _! B" V2 `. |5 o' o - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)2 O8 q% Z& ^1 }1 q
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)" }6 ~. Z' J) U
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
" r6 ?: G7 T& q. f: q - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
1 { i2 a0 {% B; f/ C/ K - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
! g5 q2 }" O/ n- P k5 O6 W - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))+ ^. j: \$ ?( u! P9 p
- )
+ l* Y$ E1 ^- e6 K( k
2 C+ q' l: a* g- ;-------------------------------------------------------------------
1 }0 n& [0 m5 g& a0 L7 L - ; 绘制两个倒置的并偏移1/2螺距的圆锥
# p2 g0 _, C- ?: X- r6 q. {1 m6 } - ; 这两个圆锥都以中剖面剖分! T' m7 B6 O U7 \
- ; 进行并集运算
. a7 s( M4 f+ ^ - ;-------------------------------------------------------------------% Z& ~# O7 T0 L: U( U
5 y7 Z; f/ r" x: D- x* p- (SETQ startcone "order")* M& {3 Q( |3 b, Y( K
- (SETQ endcone "Y")" l0 N9 V' ~" [% F0 w2 {
- (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)$ G" G3 { \: g) `9 m$ n
3 ?3 N8 u; i& {6 }( R' f! n- (princ "2 l: {1 J/ M$ U( E' U+ q
- 正在绘制三维螺纹，请等待")5 X& d# L' o' p# M* D' E
- (command "pline" pttmp1 pttmp5 pttmp6 "c")
F1 M5 L5 O5 Z* H - (command "revolve" "l" "" pttmp5 pttmp6 "")
0 o% @. m; Q& {! P; y - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
+ r V) V5 d4 j - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
4 e, I2 D0 A9 v2 w - (setq tstmp (ssadd (entlast)))
* \5 [+ }: b; A - (command "pline" pttmp3 pttmp9 pttmp10 "c")/ U+ W- ?+ n' @5 ^7 ^- @
- (command "revolve" "l" "" pttmp9 pttmp10 "")- }7 P& Q8 Z1 @" b$ G
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
& W# u$ T8 M( Z( e - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
, W* u4 [/ a- C8 Y$ h9 g0 U" c - (setq tstmp (ssadd (entlast) tstmp))' G2 e9 s& Y z9 r% m
- (command "union" tstmp "")+ E) }' J3 j) m8 z0 |5 G
- B9 f" [+ b: ?. E" ?8 D! H
- ;-------------------------------------------------------------------
8 P9 p) |3 @7 l/ a4 ^ - ; 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' O( L8 N+ e8 ]7 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
2 p% H( ], h" n8 R% d - ; 在最后一步被切除/ a' h0 d" Q3 q( S6 o
- ;-------------------------------------------------------------------
1 |; p4 a; c: w4 ~3 ]" Y - " e6 l$ L- s+ p0 G: i9 M
- (command "slice" tstmp "" "xy" ptStart "b")
1 B3 ^, m- I" }7 j - (setq tstmp (ssadd (entlast) tstmp))9 ^" k" c5 S5 ~ \6 o
- (command "mirror" "l" "" pttmp1 "@10<0" "y")
* F% j( C4 [! n) V7 \# S - (command "union" tstmp "")$ f, x/ ~# Y9 n, d, W/ v' Z2 W
- + q0 L# L* Q B% ]
- ;-------------------------------------------------------------------
4 I' X+ ~% f; o0 O. b8 F7 Q$ Q - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）1 ?) J% i4 z5 T( |& ^6 y
- ; 得到的实体再切除到指定的螺旋高度
7 Z+ V0 B" K, l! G' {5 ? S - ;-------------------------------------------------------------------
2 u6 @ B# y/ H8 h0 Z
: x* _ M) }. I: H: n5 b3 b, N- (setq e (entlast))
; C& M R$ w% r$ U - (command "array" tstmp "" "r" ttal 1 threadpitch)
2 F5 P6 {5 R+ O - (repeat (1- ttal)% ^8 a! J5 n9 y+ V( K" w; B9 M
- (setq e (entnext e)6 h* q6 D8 x, Y* R3 [
- tstmp (ssadd e tstmp) \+ }, d {5 P- y$ g
- )
" h! K4 m9 `, w3 c: U - )/ d4 U4 L6 W5 I
- (command "union" tstmp "")
) b: {6 _3 B: u, E
' `$ | a0 g) Q0 S0 x9 |* e H- ; 若开始创建45度的圆锥0 k/ m' J! C2 D; R
- (if (/= startcone "order")7 _- `( `' s; f
- (progn (setq e (entlast)). q* e* ^9 A* A/ }
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
6 K, a- I: t2 ^# O% W5 u4 z - (command "union" "l" e "")
) x v) a) X- h D9 j7 P - )6 C0 S5 h8 t5 L3 k
- ). ]4 S- K3 {& N: X: n% Z
6 h- ~ z; S/ V' _- (command "slice" "l" "" "zx" pttmp11 pttmp12)
. ?, `( ?" a* N& J7 Q - (command "slice" "l" "" "zx" pttmp12 pttmp11)
9 P7 {* ?4 c# X+ t# N/ j - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) ' Q' n# a0 Y% E+ G( v) w
- ' C( o) J8 R+ r
- ; 创建最小直径的圆柱体，然后与螺旋作交集3 p, A' U8 B4 f
- (setq e (entlast))" p# R" J+ Y3 V/ a) h6 j; Q; k+ e
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
4 l% e7 g# \5 `3 Z - (command "union" "l" e "")
& _% N, M$ {+ k1 g* y - (setq tstmp (entlast))
: r" [ r& U% g3 ~
1 r/ `/ G! m6 K& r; P- U. A* @- ; 创建中空的圆柱体) E3 B4 V* B5 z! L, K
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
9 W9 F! f% E, }1 E$ ~8 G" Y - (setq e (entlast))
3 ~6 F9 s6 a" y+ S( h: u$ N9 L5 L - 4 ^9 h& t f7 J2 w# _: b
- ; 若最后创建45度的圆锥" N* Z& _2 O+ [- z& o( k
- (if (/= endcone "order")
( r3 t; S K; t D+ ~3 q - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart)))
7 g+ h& x' T# @& i - (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
2 Q% J: |! x2 L- G0 {0 e - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))! \5 L* r4 j% Y. x4 ~9 B% m, n
- (command "union" "l" e "")
( s$ u7 b( j* J4 o+ W5 Q( D) y5 ? - (setq e (entlast))9 _# c/ {, T8 b- R* {, C
- ); B2 c" {0 P* A- H) V
- ); Y8 c/ d1 g! K7 s
- + {' l' h( }# ]6 ^# a q m
- ; 从大圆柱中减去小直径圆柱
) t1 M, {5 \, [, [8 ~! M - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
. Q+ m c _, @; [ - (command "subtract" "l" "" e "")
6 G0 f' a2 M& V9 `% I - (setq e (entlast))4 O n" _9 a7 s2 ]8 a9 s
- 8 Q3 X' y6 K& j O* A3 L- j9 x
- ; 从螺旋中减去圆柱2 O; n& A, h* o& a8 e
- (command "subtract" tstmp "" e "")
: s# s* w$ n" y# {! J; K! s - 3 ]* b; n( e* r4 ~
- ; 如果螺旋长度为负然后镜像
4 U5 Z1 G5 {- T. m) }6 @ - (setq e (entlast))$ v% ^7 r+ H3 ^8 G& P1 h
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
% s: j6 X, o/ R8 C - ' g b, w# o. d9 Z0 ]; M6 s
- (command "zoom" "p")
* x4 \: W1 {+ S% Y; N7 b - ; (command "undo" "end") ; 结束undo步骤
# y' S# r0 ]$ W7 _ - ) J: ` a' b" ~7 K/ `2 I
3 n6 _) R6 r' F! x8 M% b* G5 S0 X- ;;;---------------------------------------------------------------------------------------------------------------------;
, T) p$ [1 u% O) B) ] - (arxload "geom3d" nil)9 m& [/ H, N" P
- (princ "
* a# s) x ?/ C - 3DThread 已加载。 ")
' l- M! k' T9 M, G* W; i - (princ)
4 W9 F4 o h! X
3 W9 q2 l. f. P( w3 y
; d$ T$ E8 w% n' B+ {三、弹簧源程序; \% f6 M1 L: h1 S5 N: w% Z
- (defun errMsg (s) ; 当命令执行时出现错误
) ]! ?2 ]5 m, ? - ; 例如用户按下了CTRL + C9 H0 S0 A6 c9 `) t: v
- (if (/= s "Function cancelled")7 O: N* n7 Z- u0 s3 s
- (princ (strcat "
. t" X3 E* w0 E$ q' S+ k, @ - Error: " s))4 t8 X; W+ t& @) e' ~5 Z+ }
- )& a" z5 O# k7 v! U
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值) N% W, }# y% z ~0 u# C7 x/ }
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
1 a! }0 S5 Z% P: S+ h! F - (setq *error* olderror) ; 恢复旧的错误处理: m4 o1 N Y" \" x
- (princ)+ H+ {* Z& V& O) Z* T; J& z7 ~/ b9 P
- )0 }' J' f, x$ m F8 y5 Q
- 4 F5 }: h) k( C+ ]2 E; i3 Z
- (defun spring (nRepeat cntPoint bhfac lr strad bvfac$ l5 Y& n" L+ A- U$ {! B
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv), M" P9 c) X+ D; o ~) u s
6 @6 Z- o, N( M, u- (setvar "blipmode" 0) ; 关闭 blipmode ! J$ I- j" {0 j. x z2 U
- (setvar "cmdecho" 0) ; 关闭 cmdecho: n+ ~: {; i ^4 p- {7 H
- (setq Pi2 (* 3.14159265 2))
; U, _; U+ X1 I0 c# Z- w4 j- K - (setq aGrw (/ Pi2 lr))
5 l: J$ F4 f) D* z - (setq dhGrw (/ bhfac lr))+ z( n- j5 W2 ]" v- B7 K5 a8 y" W
- (if bvfac (setq dvGrw (/ bvfac lr)))$ R9 j2 d% g( S2 C3 p. }5 Q n
- (setq angle 0.0)
- X+ Q8 e8 x$ W( h) N - (if bvfac
7 u7 P, g, N- h, k - (setq distnc strad dv 0.0)$ g; Y; |9 x, ?6 a; x) e
- (setq distnc 0.0)1 P& \& o, U0 B) Y+ r: F" G7 i
- )
; m, j6 j& c& _2 Y9 ~ - (if bvfac
2 x4 V3 G* w) t; q" ~- ] - (command "3dpoly") ; 开始绘制弹簧
( Q) \& q+ c% w8 A. P; i- G - (command "pline" cntPoint) ; 从基点开始绘制弹簧. c+ ^; B4 D4 y- J: v2 t, Y! P
- )
; P" f% D, Q/ p* `% ` - (repeat nRepeat
2 x: U3 @4 g$ z6 @- H8 ` - (repeat lr
- p) ]- `3 }+ P/ j - (setq tp (polar cntPoint (setq angle (+ angle aGrw)). J R1 a8 r+ N# s% I t
- (setq distnc (+ distnc dhGrw))
' ]; x% V: P m8 X, | - )
+ ]- b6 n6 P% K' u2 r/ {, } - )6 d( \6 K, S% |. s
- (if bvfac
, z* ^5 m, z0 Z6 O n( }6 p. k - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
3 v6 j/ b0 U A Y% M9 m: n - dv (+ dv dvGrw)
6 c, e+ _; y9 w - )
3 |7 ?- l* j& f% z - )
. o- b5 l5 f; R" k6 V* ~) A - (command tp) ; 继续输入下一点1 K3 r P0 `1 {
- )
/ C1 P; a: }' t" G$ C) G - )
" V b0 y1 _: \$ T% n - (command "") ; 输入结束6 z; T A+ N& R" N" a9 {
- (princ)
7 W( q# C" _( D6 f9 ?1 l s - )
' C: T2 m( [% n/ p - : n$ C! T4 A" \/ e5 {
- ;;;
a2 ]$ [3 ^' k - ;;; 生成三维弹簧函数调用接口% n+ c3 K; O) q4 k2 G1 K
- ;;;7 p5 n- z$ \/ ~
! Y0 b" l) @* ]- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) & I( I" b8 o; N# W& M+ @( s& j
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
% @. b8 d! k3 w- H# m' I6 F& N s& ? - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
* H# c3 Q [$ K$ p: A - (setvar "cmdecho" 0) ; 关闭 cmdecho # {- ` p& t9 [2 w3 [3 ^
- (initget 1) ; cntPt 必须非空3 t7 u% V' s, _: }" ]
- (setq cntPt (getpoint "
; L4 L' q8 j" ?+ L) ` - 请输入底部中心点: "))4 S9 C' U* T4 w8 {
- (initget 7) ; RottCnt 必须非零、非空,不可忽略7 A$ ~9 U9 }" H
- (setq RottCnt (getint "
0 T8 G1 x/ N& E1 w# T' E - 旋转的圈数: "))
8 W- `; y0 u+ r - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略 o9 Q# b. U4 ?6 A% s
- (setq bgnRdtn (getdist cntPt "
7 I: P9 `5 C4 S4 V* L7 \$ w! X; ~# s - 起始半径: "))
# k, B5 \$ r% U$ [4 z - (initget 1) ; cf 必须非零、非空5 L. K7 W! ]7 q: a1 Y$ f/ B" o
- (setq horiGrw (getdist "
( u# J1 v& v* T" `- d% L - 每一圈的水平增长距离: "))1 k0 c+ O' l! P) w" V. G: W
- (initget 3) ; cf 必须非零、非空 j" I$ I; F1 D. l/ G
- (setq vertGrw (getdist "
6 R' f& G# x t5 I+ h - 每一圈的垂直增长距离: "))0 ]% y# V4 N3 l+ i' ~2 P3 I
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略
% `9 `( Z+ ]: N3 W+ C1 l - (setq ptCntPerCircle (getint "1 A4 B! M$ @3 ?% E
- 每一圈的插值点数<35>: "))
) N( P/ z5 Z! Z - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) ( h' {3 N1 U2 m) f
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
- i7 J* m9 ?5 N* `3 P( @ - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值4 q1 f) n5 s8 K! f3 Z
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
: j* |; d3 F3 K6 Z4 o - (setq *error* olderror) ; Restore old *error* handler1 b; l" P/ p3 c) u- ^+ ]. K" [; j
- (princ)
. j0 }% b* Y. b2 ^& f - 3 H7 d1 |5 R# I" G
- )
& o* ^6 B3 X, ]$ H8 r9 n0 g
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
