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' |& d" `4 d) W$ H, |( K: _
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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：
. `% R- P2 v* W一、齿轮轮齿渐开渐开线
1 N0 _$ @1 I" X4 z! K }. w
" p0 A# w7 j6 f, l8 P* C) u7 S2 Y- (defun c:gear(/)
7 g; S/ @* [8 S2 \+ I; q: T - () A9 g L; `6 ^
- setq
6 @$ B& b# O1 J( b+ r - p0 (getpoint"输入齿轮中心p0: ") P0 b( c& K0 p, ]
- m (getreal"输入齿轮模数M: ")1 w. ^( C' {- W2 p; X
- z (getint"输入齿轮齿数Z: "): e. I8 F; V; L4 M9 \$ s+ y5 y4 f1 K
- ha 1
9 p1 |4 y$ x% K - c 0.25
9 N1 x* x* V1 y* X2 t) M - a (/ pi 9)
, K- X0 M8 _. _* R - ra(/ (* (+ z (+ ha ha)) m) 2)% ]1 {4 q7 s7 a" v3 p8 u
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)0 P% L8 f! o) [, `% O
- r(/ ( * m z) 2)1 h; H f) [0 Y% b! Q9 f
- rb ( * r (cos a)). n! g- f, z8 m" R; o4 g
- ri rb
" U4 C: |' W O8 j# } W8 `- X - ang 01 i- x& Z% S$ [4 w
- g (polar p0 ang rb)
8 W( _+ u; w: k0 A2 B9 B - )
: d$ ]$ w* Y0 | - (command "circle" p0 ra)+ Y$ J, E/ M2 w3 P6 ?
- (command "circle" p0 rf)
* }+ q2 l' P: m8 B0 R% y - (command "circle" p0 r)
' z$ f& h' g( j4 @# L - (command "line" g)
1 J2 C, c, P4 v1 d2 X' T |. y; s - / O6 f* {; i! l& W
- (while (< ri ra)8 N* C/ q# ?4 [
- (setq
- n8 ?9 Y& [2 J! L) f - ang ( + ang(/ pi 360))+ L& b. R& b9 _; V, L: w! b" e7 n( q
- ri ( / rb (cos ang))2 d. N E8 b2 z$ k3 b0 `
- cta ( - (/ (sin ang) (cos ang)) ang)
9 H' K1 a f+ v" N- f& R$ a5 y - g(polar p0 cta ri)0 s. v9 V* ~" `( a
- )
9 |/ U' ^7 v2 e/ {0 x - ! ~. q& F. j7 y3 D' b* \5 W
- (command g)/ K7 R5 }" g3 {, l: R
- )
# G6 E+ Y; B9 g$ M1 D+ K3 h4 ?( ? - (command ) ) a7 G, r% V5 W n- k7 I! M& R
- )
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# a0 |5 [% n$ V: ^ y5 M9 P
3 f3 r t7 P. k- s2 G二、螺旋源程序
/ Y6 s. M, n+ ], ^4 r6 j" @9 A2 R8 m5 w% s6 ]+ l
- (defun errMsg (s)
, s) E$ s: z4 D5 t* w - (if (/= s "function cancelled") (princ (strcat "
, |$ q$ U, O. E. k( ?' [/ g - Error: " s))). M$ Z4 @$ I$ h5 v8 \5 V7 x
- ; 当命令执行时出现错误
v# T- u; M. y$ W4 A3 F. @6 `( n - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
) ] k1 r( E" A) Y1 B" a - (setvar "osmode" osmold)* j- W# M3 _7 P4 ]5 t* b
- (setq *error* olderr) ; 恢复旧的错误处理; S/ _7 _, d# |/ K$ [4 y
- (princ)5 {' { \9 s7 q
- )$ m, z [) \7 g y1 s" @3 t3 v& i
+ B; b0 F/ O7 @, P9 ^- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle , C5 {. r0 c% G4 v
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)1 f% V- B( n* u, n7 \
- ;-------------------------------------------------------------------
( C) D2 _3 z: {$ [ |! K - ; 获取公制外径大小、螺距总长
: m2 k- g5 g7 O - ; 然后计算一系列几何点: D0 ]% a' J# k0 t
- ; 并且关闭对象捕捉、命令回显
6 |% }1 s* i' i4 b8 I4 } - ;-------------------------------------------------------------------
# ^' E1 S( b, W# E2 X ~ z - (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))
* o: y" M: v" g% o2 g - (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))
+ w" R% K3 e, b" e' s- z7 u( ] - (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))
( x9 A m$ w) g7 Z1 I$ l7 D _' S - (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)) " c' ]9 B' V- p' _; K
- (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))
2 S6 t, o) x' G- j
+ k& E; V7 e" p( A/ k @- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值3 S: ?5 A) r5 H* ?6 b f. B! S
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
/ d5 i0 X9 g: ^2 p, C - (setvar "osmode" 0) ; 关闭对象捕捉 . N! w4 r+ n5 u5 Y! L+ v, V
- (setvar "cmdecho" 0) ; 关闭命令的回显
$ b% d, f% k4 `& G: ^& Q8 R - / Q6 H( I6 d' w
- (setq innerdiafactor 1.5) ; 设置内径系数/ Z8 B) h. p3 D- K- r% g
- (initget 7) ; radmid 必须非零、非空、非负
& p8 a8 u1 s5 }+ X8 K* [! ? - (setq radmid (getdist "# P- d {0 m8 O- T; k
- 公制外径: "))
" c+ I: M. p( T9 S U - (initget 7) ; threadpitch 必须非零、非空、非负
9 b3 p9 {( e m3 U& b7 a* l - (setq threadpitch (getreal ". J# {2 m* r& w m
- 螺距: "))* ^. ~+ e/ i8 ~ w9 G5 P) `
- (initget 1) ; ptStart 必须非空
4 k2 Y8 A+ A: U& ` - (setq ptStart (getpoint "
# E1 M* J" s5 W8 U% F - 起始点: "))2 B% C \) Q, g) ?' j
- (initget 3) ; threadlength 必须非零、非空、非负; H$ W6 C* ^6 H( p, R
- (setq threadlength (getdist "! a) E0 S+ F! r! B* }
- 螺纹总长(Y方向): "))
; q( D# t( C+ D! b8 L+ n& r
$ \/ x; ~& E$ u& R- ; 对公制外径添加公差" l y7 r" o- Z7 W* X% I
- (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置2 t4 [' O' w0 D
- (if (<= radmid 6) (setq order 1)! q* }* J: y) v
- (if (<= radmid 10) (setq order 2)2 r! H& `9 o9 M( t2 Q
- (if (<= radmid 18) (setq order 3)
2 j! Z( ?0 v+ c" ~- g; G - (if (<= radmid 30) (setq order 4)+ W+ Y; I4 T; A& g; Z$ `
- (if (<= radmid 50) (setq order 5)
9 E, W# W. P" o3 p1 `1 f6 Z2 t - (if (<= radmid 80) (setq order 6)
/ q0 Q' _3 o$ u/ r* C: q/ h' R7 x - (if (<= radmid 120) (setq order 7)
( h/ R- L( N0 M( v' f W - (if (<= radmid 180) (setq order 8)
' m% S# x C2 v6 I. H: s - (if (<= radmid 250) (setq order 9)
8 Z/ b( N* A. `* z. S4 } - (if (<= radmid 315) (setq order 10)' ^0 R: C& L$ y8 C$ H& T
- (if (<= radmid 400) (setq order 11)
0 G1 b; n% {* N - (if (<= radmid 500) (setq order 12)
$ C* q7 a6 t! P4 X) p( T - )))))))))))))+ \6 @ Q1 _$ Y, [) X. d
; h0 O) {3 I( U8 ~+ P5 F5 o- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
7 i5 r7 E5 T* ^0 I/ Z" l - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
) C: |/ M, \, R) O( K - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))7 ]# v, |, b3 ?' U5 M
- )))3 z6 w, B) M$ n6 g( q; V9 g( d9 I
- # m" y& Q9 F4 y
- (setq h (* 0.866025 threadpitch)) ; 计算齿高
7 s/ |/ A8 a. P* c! \- ` - (setq radouter (+ radmid (/ h 4))) ; 计算外径" c9 ^. S& b, L- L6 e! r
- (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
/ R* P# [- l! t2 }. _' f - (setq threadangle (+ 30 0)) ; 计算齿顶角
3 a5 k, f0 M2 s0 f) A" x) k6 D
) P2 o- h0 x/ @, d; P7 a6 R" y3 ~- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数+ T0 G) I: {) n2 _
- " X0 B) M4 g- T6 r' H& H0 D; M
- (princ "
4 Z' b2 X: m0 m - 三维螺纹创建完成")/ p( k, `1 z' ?) f! O9 x
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
5 b2 ~8 i7 a& ` - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
) D4 S, ]! B) N( v9 I$ a - (princ)
' d V* L; n5 @# Z# k; _! I - )
9 C! a* ?; f& m! U - - L; h' b! D. u! X$ a* P
- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
8 c6 g- W' F3 M* e - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
0 H# z$ L3 u$ }" r( a; @* C! w. e - " P. f0 m8 v1 a" V$ J" i
- ;(command "undo" "begin") ; 开始undo步骤, f" s9 k/ ]7 S+ x
- . V5 K$ V! O* t3 Y0 y' y: @
- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)4 l8 p9 s9 T2 L' [, V
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))9 W2 ~! N5 L' h- q) ?2 v4 |1 p/ H
- pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))8 t5 G5 C& l1 V: t
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)& A1 ^) _, |, p3 Z
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
, n! x. {, j( X6 o9 a" T. @ - ang (angle pttmp1 pttmp3)
0 C5 P& X; S2 e+ C& J0 i8 _8 d - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
9 O4 G7 i h! s - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
5 T; b4 O0 h% d' ^+ [ - pt3a (polar pt1a ang radouter)
8 l, ?( }8 e& s* C+ \ - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
4 a/ |) x5 o) q - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))
* q- {: G, t5 ]5 @" x9 D - pt3b (polar pt1b ang radouter)
! P" h! u) X8 R3 h" S5 j3 T! v+ Y - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)/ m7 ^. J* n$ E
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
. V9 q1 C4 r$ P5 { - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
* k A! w) c | - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
- ~ d$ O& Y9 j - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
" B/ g& ]2 O+ s* q" l" u: I - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
- u! I1 y2 w4 `2 B ^' Q( d - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
: S4 U- w7 f3 z, u - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
+ \$ A$ @, @7 L1 N& M. X- o4 j - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength)) Q- C4 n0 [2 f
- )
9 m8 i( z! L! k4 J( Z, f - * V# p. r# @' I" y8 H7 _8 o1 ~
- ;-------------------------------------------------------------------
, }% c+ `. w5 p& \! E - ; 绘制两个倒置的并偏移1/2螺距的圆锥7 z, p8 [. `+ Q% g/ J. _
- ; 这两个圆锥都以中剖面剖分, w+ z" H, J( G) Z4 W
- ; 进行并集运算" {; E+ ]0 y( Z8 b
- ;-------------------------------------------------------------------/ d. ]9 G2 W1 {6 ~3 u) N
- / _8 x" i( _( K1 T
- (SETQ startcone "order")$ b: b$ \; |; c y+ B
- (SETQ endcone "Y")
% e& v4 E& `( B - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b). K- y$ J* G3 l2 k
- 1 }5 _ V4 f! O! _2 C) O" t! Z
- (princ "
8 V2 J5 d) m# D7 N1 H9 c - 正在绘制三维螺纹，请等待")' L; u5 |$ b( E# Y1 S3 Y5 ^
- (command "pline" pttmp1 pttmp5 pttmp6 "c")
0 A/ c9 B- T+ t- U7 W9 l p - (command "revolve" "l" "" pttmp5 pttmp6 "")
( N! U& t3 X# |; o2 z2 w - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5); |% u5 o; Q. K
- (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
2 k0 y1 m5 I" N+ B( D - (setq tstmp (ssadd (entlast)))
0 _) r# B* z+ g - (command "pline" pttmp3 pttmp9 pttmp10 "c"); f% {9 H6 G- p$ Z' W# u
- (command "revolve" "l" "" pttmp9 pttmp10 "")
Y) F* G2 K2 B% X$ \! P - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
# E: K+ o! f" P3 D8 [" j& U - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
+ H' g3 B5 ?0 g" Y8 f9 G2 b - (setq tstmp (ssadd (entlast) tstmp))
. q7 N8 w, Q* T" x$ k# | - (command "union" tstmp "")& c" T$ n% @& h
. ^8 j% l: r" _- w+ P; g$ y4 p. L; [- ;-------------------------------------------------------------------
, g& b% H" b4 e& Z! T) 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% m/ T. X6 j) E
- ; 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
: y% Y- Q6 L( P. n - ; 在最后一步被切除
& h/ X- q' V! T - ;-------------------------------------------------------------------, h3 U6 y0 I w- \# ?2 ^
' m1 k8 _& x; r9 V4 H7 e- (command "slice" tstmp "" "xy" ptStart "b")
- |. U/ L4 r/ h$ H - (setq tstmp (ssadd (entlast) tstmp))7 i" i; e' V7 x
- (command "mirror" "l" "" pttmp1 "@10<0" "y")! o& g" C8 P& k0 }% u _
- (command "union" tstmp "")' _1 g! I8 M) Q# L, ]
- X P0 J- o2 u- [" s- ;-------------------------------------------------------------------
# p8 V1 T3 ?9 e; F5 w6 r) x! Q - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）) f: E5 h3 \# y8 s/ K* B0 F
- ; 得到的实体再切除到指定的螺旋高度; _. x1 A" x$ {; }5 V
- ;-------------------------------------------------------------------
' D) W9 B/ f/ |! n" C - * ]- Z: G$ h7 r& N y
- (setq e (entlast))
+ K( S1 Z' u m/ e - (command "array" tstmp "" "r" ttal 1 threadpitch)1 n2 V9 ?. q' P: K6 K( c) k( p
- (repeat (1- ttal)
5 B+ A0 }$ F* a, G2 H1 c7 f; r- j - (setq e (entnext e)
. f- P H4 n. H2 `2 \4 K$ H - tstmp (ssadd e tstmp)
. ^, | e2 x+ ?( X- D& `2 h. m5 K - )
. s/ r O6 h6 n! y& d' B) A. b - )
" \7 b) m+ D5 W7 u ]8 i) f - (command "union" tstmp "")
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1 g0 r. G# q! U5 h6 ?( ^" s$ D- ; 若开始创建45度的圆锥& B" `) g2 a; [) c- D
- (if (/= startcone "order")
' a' i% S' [9 m( V- _4 {$ z! O - (progn (setq e (entlast))0 Z8 w) Q, }8 Y
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))+ n; R3 Q( s* r7 M& g
- (command "union" "l" e "")
+ I; l: \" u; [ - )
- Y/ `; i Q9 U% W7 z - )
2 t4 p( s9 ]' z, F# k - , t8 T, u, k0 A( E; q
- (command "slice" "l" "" "zx" pttmp11 pttmp12)- T, ~5 `! b+ r7 a8 w! }" g
- (command "slice" "l" "" "zx" pttmp12 pttmp11)( O; s% V+ a( Y) |4 o
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart)))
( B. _8 M/ j, K; [6 z# w' d - * b! `* Q2 v" g$ o
- ; 创建最小直径的圆柱体，然后与螺旋作交集* i& Y. R5 F8 f; f* }
- (setq e (entlast))
/ L" a. E) U1 f+ I! y - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))* Z9 j \! B* y; H2 I+ N" v
- (command "union" "l" e "")# W, H: ?( c0 e, O) w8 j
- (setq tstmp (entlast))
1 O: a0 z/ }0 c/ c
7 O: B) R" I( t+ y- ; 创建中空的圆柱体( i" j* m- _% z
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia9 ?& J3 Z# _% ^1 Y Z6 g2 f
- (setq e (entlast))7 N7 g8 O1 S0 W [) G0 ^: e/ S
- ; g) d; q) v Z- W
- ; 若最后创建45度的圆锥
& K% u( n# M0 H0 {6 S8 s2 g - (if (/= endcone "order")0 F" _9 B( {9 M% j
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart)))
, d6 U! C# _4 [7 H8 Y" w% A - (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) ) F5 r. M$ h% [8 f0 w
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
: C9 ^% Z& I! h9 Z" F - (command "union" "l" e "")
) D/ B" S1 ?/ k7 I, X s3 [ - (setq e (entlast)) H1 ~( }* G m0 I) \
- )
1 V( {. y( u/ Q) Y" R6 W+ s - )
# B* |; t3 _0 D% y& J# d - - G5 L+ ?7 Y) C$ ]6 v' o8 ^( y j
- ; 从大圆柱中减去小直径圆柱
& r; n+ y n6 J7 l - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))& N, o7 x& }; B* E" q
- (command "subtract" "l" "" e "")" A& j( G( U0 d2 C- q O! M) Z
- (setq e (entlast)). O9 y/ ?4 a# B6 [; I
- 5 j5 n% |. K2 }- z! h; m6 l- w4 o
- ; 从螺旋中减去圆柱
, d* _1 U5 p1 P5 h; ?* c - (command "subtract" tstmp "" e "")! F1 @% n/ F9 q; J7 ?; o2 l4 w
0 S" e4 U: g* W7 Y' T$ S/ z- ; 如果螺旋长度为负然后镜像
( q4 O- G! W. b1 r" L - (setq e (entlast))
. l" A; l0 S' i' x" L - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))) P, t& U% x9 d2 S6 `0 m1 z
- 3 m: Q- r1 W7 w+ K/ M4 L
- (command "zoom" "p")! g. {6 A' x7 h# q) Y' P8 |0 p- g8 r' x0 f
- ; (command "undo" "end") ; 结束undo步骤! P4 x& g: j2 s! Z3 D( W
- )
6 s# s& t( M/ S) L9 M
& T; m8 u$ }1 U- ;;;---------------------------------------------------------------------------------------------------------------------;
1 \ M& T0 S/ x! \1 ? - (arxload "geom3d" nil)
3 Z" k' j. |' K$ w" I7 y4 B - (princ "
2 j5 Y& m( y) k - 3DThread 已加载。 "), b0 u; L' S3 X& j
- (princ)! [+ `7 Z9 Z+ @6 E( ?
( u* J8 G% `: R$ X6 R2 Q
- s; S' O; p$ y9 J8 Q0 L$ o三、弹簧源程序
% d: t( E& Z# s- Y$ z7 N3 @; ^- (defun errMsg (s) ; 当命令执行时出现错误 2 w9 `, O8 P" o; s1 @4 \: ~
- ; 例如用户按下了CTRL + C* f+ p1 d3 H2 N* E$ i [. N1 C
- (if (/= s "Function cancelled")# \4 o6 j% g* s/ ~ V$ g/ Y% ^
- (princ (strcat "
2 F; l+ O9 X& w - Error: " s))
# Y) J/ }5 o4 J2 p) }4 h+ t - )3 o2 F3 W/ s& a
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
. X7 @3 j( V0 K. ?5 n1 o$ [ - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
" a; g- T7 T, p8 M7 {5 J3 U6 m5 D - (setq *error* olderror) ; 恢复旧的错误处理5 g' r5 g1 l) {+ a
- (princ)$ x8 w9 J9 g* K+ t& i9 A: S
- )
+ t0 g+ ^7 d* S1 [5 |6 f
+ T% W) J7 w) Z7 g5 H0 V- (defun spring (nRepeat cntPoint bhfac lr strad bvfac% @1 C) p" R& T3 y/ W3 l
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
, G4 r% Q" c- o; t% i
+ n2 C' Q) z8 m- (setvar "blipmode" 0) ; 关闭 blipmode
9 n- _& ]3 E* }* L. V8 l- w - (setvar "cmdecho" 0) ; 关闭 cmdecho; Z' @! p2 e! q' ^% g
- (setq Pi2 (* 3.14159265 2))0 Z! x& Z/ q. w4 b2 h/ P& \$ F0 k
- (setq aGrw (/ Pi2 lr)) \) j# ~6 |9 ^) X3 Q0 J
- (setq dhGrw (/ bhfac lr))
+ O" T& J2 P Z# K - (if bvfac (setq dvGrw (/ bvfac lr)))3 e6 B; x4 O2 T+ g9 ?
- (setq angle 0.0)
/ R3 `0 z, A& r - (if bvfac
/ M' M4 M/ }1 s8 x4 l( W9 ~ - (setq distnc strad dv 0.0)
5 f$ y' B. e: m7 g# s - (setq distnc 0.0)
0 ]: h( r4 a5 d- k+ w - )6 E& s# Y( j3 P1 L$ |0 U9 m9 Y
- (if bvfac 7 R" s/ J) F0 j- V4 I3 S
- (command "3dpoly") ; 开始绘制弹簧
: G6 ]7 o a: _0 H$ \ - (command "pline" cntPoint) ; 从基点开始绘制弹簧
1 m* D" |3 } {2 q8 v5 M% }" b - )
) h5 z* a n& K+ l - (repeat nRepeat
% h5 {3 N% {! j9 x9 K. y - (repeat lr
! t# k7 ?+ t0 W) y1 b - (setq tp (polar cntPoint (setq angle (+ angle aGrw))0 _5 |( H1 d3 d6 X7 v& L
- (setq distnc (+ distnc dhGrw))' ?$ ]3 ?6 s, c% g* w# L
- )
( T9 {6 M+ w3 h Y! Z# L - ); U9 Q& f j. v+ ]: q% M' D8 i* u
- (if bvfac
) x5 ?& ` x# m7 x- O - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
9 R% \8 s+ T* c7 o - dv (+ dv dvGrw)
8 v9 U7 V U R3 s' {0 G) Y1 ?" K - )
% ]5 b3 [# I! k - )6 Y: Q5 b, o; Y
- (command tp) ; 继续输入下一点
6 y6 g" a! R: m8 h, B - )2 r) B. E9 U+ }- }
- ) . m! }- K- T( i( o0 g5 d0 {
- (command "") ; 输入结束! L- {2 W7 K; {7 X- c* _
- (princ)
& C" S3 y: U8 H* R- M2 L - ) - G* A$ l9 e3 n( N+ O) X
5 G8 v% G& Z: l- ;;;
7 W9 H4 t: ^) J) ]. g - ;;; 生成三维弹簧函数调用接口/ `& c" R0 f% ]1 A8 i7 m
- ;;;
" y- E( _5 Y& d- Z/ P8 {9 O - " V; l3 B" M' X% j
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
6 l. {2 d# r$ l. p - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复0 z4 _9 A3 q" @# s& z" Y. J
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
) q7 ]7 Z- @! T: U+ q& H3 X - (setvar "cmdecho" 0) ; 关闭 cmdecho $ l# p% H! J O$ u( n2 n
- (initget 1) ; cntPt 必须非空
( j; R" k/ ?1 c6 c - (setq cntPt (getpoint "
, O8 R! s% D i% m! K - 请输入底部中心点: "))
$ b) c {% R& t) [; I" x2 [ - (initget 7) ; RottCnt 必须非零、非空,不可忽略
( a6 x- `% x( S) s% `% y - (setq RottCnt (getint "5 G) _( ]/ A4 e
- 旋转的圈数: "))
3 T) W8 N ?. g9 Q y6 S* Z - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略$ Q* k6 b: C3 y7 F0 a$ w5 w
- (setq bgnRdtn (getdist cntPt "
9 z1 n+ A4 d: D7 P( M( ^4 o - 起始半径: "))
& j, J' ?# I- X5 W$ D9 b- @ - (initget 1) ; cf 必须非零、非空
4 I9 j1 e* D0 k0 { t' Y+ I - (setq horiGrw (getdist "
$ G9 }. _9 p6 F8 N - 每一圈的水平增长距离: "))
8 A9 {/ u& j0 h: R - (initget 3) ; cf 必须非零、非空
% z1 g3 ?7 ?5 W4 ` - (setq vertGrw (getdist "
% R8 A! e: @6 t6 d; a' b3 `* p e - 每一圈的垂直增长距离: "))
7 _, U: ]# L8 B& k - (initget 6) ; ptCntPerCircle 必须非零、不可忽略: K. U4 b, a( l
- (setq ptCntPerCircle (getint "* k ]1 ]2 ]$ g6 M# V
- 每一圈的插值点数<35>: "))9 T1 {2 b% p/ M( L( c
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
8 P# m# G d$ y7 o - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
, w9 Y: N& r6 b$ h0 b0 `# ?2 _7 ^ - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
: V A. l) g% w. m - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
, [. Y, U! Y: G1 H - (setq *error* olderror) ; Restore old *error* handler. s7 @- `! P* Q
- (princ)
; G. |1 i. j8 T$ [ - ; F5 @/ a: g+ P$ v$ t8 t0 I- f
- )
+ v; ~+ n. K- V8 m! b" c
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
