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! Y4 E. Q; i6 M
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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：
6 h$ P6 E4 x9 M" E一、齿轮轮齿渐开渐开线5 m! ?7 C# s0 Q6 R+ B7 U# |
/ ]4 B3 n. d6 r1 z7 A; o- (defun c:gear(/)3 f$ z+ k& N: `0 T+ H" q
- (* G0 b( ?2 [4 M- V, s, l; e D
- setq0 S( q) j& e6 {1 Q- j
- p0 (getpoint"输入齿轮中心p0: ")+ z4 c* Q8 \9 a; o4 w& G% E$ w
- m (getreal"输入齿轮模数M: ")9 Y, o3 Y1 h& D
- z (getint"输入齿轮齿数Z: ")$ E5 G" a; K; ? n: z
- ha 1
! D! O/ G" p( Z" u. C - c 0.25
! {* R7 [4 h6 X: D - a (/ pi 9)
; q3 ~) o9 Z0 o, p# f - ra(/ (* (+ z (+ ha ha)) m) 2)( i' A( F8 O4 N( P
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)2 i+ F5 i$ O9 P! ^6 K; |2 X
- r(/ ( * m z) 2)4 t g) c, T6 O L. c
- rb ( * r (cos a))
! K* ]# b* M" G4 ^; ]7 J6 t; y - ri rb
9 Y7 ~& o0 j9 R1 z - ang 0
4 Z+ w8 R; W2 P6 |" G: m) _) x/ U. Q5 L - g (polar p0 ang rb)
v* [! Z- g( E% p9 [6 M - )8 h3 c% Y, ]) I, |* E0 z. Z2 g# R
- (command "circle" p0 ra)5 n& d3 Y: p) m
- (command "circle" p0 rf)# ?* J, {9 v. g- }4 }; ^" _
- (command "circle" p0 r)
) O* e/ P9 {/ d* y% ?- N( R7 Z4 f - (command "line" g)
3 Q4 F% S* [7 q - $ \0 _! I" d5 z# q' p/ b0 M: e: v
- (while (< ri ra)5 `! h- |" r: o0 w- p
- (setq: I* K& D b" Y
- ang ( + ang(/ pi 360))
) t& E0 n4 [- R4 ?% U0 f3 J - ri ( / rb (cos ang))
: @- C* I0 e2 m4 { - cta ( - (/ (sin ang) (cos ang)) ang)
# T& E* _0 H' ^- ^$ M- e - g(polar p0 cta ri), @; J! T- |9 J6 c5 g$ w
- )! f' X1 c$ b0 m+ ?+ ]
0 Y c) U' C |' S/ ~4 Y- (command g)
) j5 _* q! }* J( Z7 A4 u1 i - )
* u- d1 P( a7 n+ U6 o7 E2 g - (command )
, X! C9 s: P; \ H& c - )% v7 b( Z, u/ c) l
, k6 a1 D' T; l& l3 S9 }/ ]9 h" y: u2 @7 _( T9 V; h
! m; a! d/ I3 Z9 P
二、螺旋源程序
| X' p! E |. c- C
& i, g1 h, y, E8 J, V) r- (defun errMsg (s)
4 C3 V d8 l2 T! U - (if (/= s "function cancelled") (princ (strcat "
* `# q* C9 @, \. G5 ? - Error: " s)))
0 N) {& u g K* O- _" r* w+ ~ - ; 当命令执行时出现错误
# `2 A* H9 H' c - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
: w. A7 e- c0 I - (setvar "osmode" osmold)
I9 b# a) w3 Y8 o! @% i - (setq *error* olderr) ; 恢复旧的错误处理
; ]3 l: Z* f5 I. D2 {; `4 U - (princ)
6 b# f0 [) g) A3 j4 y( G - )* K% e; x% G9 ^& b* [' f
- + G, O$ @: H* Z4 n
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle 1 e5 {: F9 _: G0 v
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
9 {" r# Z6 P$ ]/ e1 h: V8 I - ;-------------------------------------------------------------------# o0 o5 J5 u& C& m
- ; 获取公制外径大小、螺距总长. [* ?0 E0 a: U+ h. K7 i1 Z! v$ _
- ; 然后计算一系列几何点
3 K1 P* }* \6 r1 M: j+ | - ; 并且关闭对象捕捉、命令回显7 D' M+ V, T" t" m. g
- ;-------------------------------------------------------------------6 I; L6 C" T7 v5 d) n6 o
- (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))
% Q1 l3 @2 `: j3 b) A# W% O - (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)) , U, o$ g5 |* c* J* r- c
- (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. e | L& \# ~& }, ]& @
- (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))
; i+ n' T3 M9 I! p - (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)) + u% n. m8 M U6 P4 G' P
9 k/ B' L5 Q v2 E4 n$ l% n- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
! j0 w7 _$ q8 m- D* B. w - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
$ i5 O8 q+ }! j! M/ S) d - (setvar "osmode" 0) ; 关闭对象捕捉
! j: r k5 z; J - (setvar "cmdecho" 0) ; 关闭命令的回显
' Q- B1 I- T" R$ W
1 B# [* o2 V L! N- (setq innerdiafactor 1.5) ; 设置内径系数
( @/ k9 ?. k d1 D x - (initget 7) ; radmid 必须非零、非空、非负/ s9 x- X6 G6 ^1 L
- (setq radmid (getdist "
: l" H+ g+ m Q. \$ @# H: C - 公制外径: "))
9 @/ W4 L: k) A6 A$ J2 F, n$ b$ M - (initget 7) ; threadpitch 必须非零、非空、非负
) W# l F5 U% _" I8 l a+ ]2 t - (setq threadpitch (getreal "2 C9 V& O$ C" N, m
- 螺距: "))8 M; ]7 s9 y3 z$ I/ |# {$ \3 D* |
- (initget 1) ; ptStart 必须非空% u5 t; Y5 C ^8 E
- (setq ptStart (getpoint "8 c. M U& D, {
- 起始点: "))
6 s5 ^$ ^! v4 D, ?6 R# l" z# `9 W+ T - (initget 3) ; threadlength 必须非零、非空、非负
: W. J5 M3 N M& ^0 k+ o" w c - (setq threadlength (getdist ". r: p- h H) \# E
- 螺纹总长(Y方向): "))
; Y+ ~2 r7 }# S4 U: y4 V - * ^1 m7 v9 h+ N$ K6 I
- ; 对公制外径添加公差/ _! b# U& Z6 M$ }
- (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
2 R. ]; n) {; Q$ E& W3 p2 U8 T% G! c - (if (<= radmid 6) (setq order 1)$ Y8 N9 \2 c- D2 |
- (if (<= radmid 10) (setq order 2); L7 b4 X, p6 _( a
- (if (<= radmid 18) (setq order 3)
8 u7 q R6 e) ^ z! H. w - (if (<= radmid 30) (setq order 4)6 L. `1 {/ |' r( m
- (if (<= radmid 50) (setq order 5)* [7 p5 h) L: Q8 d4 h
- (if (<= radmid 80) (setq order 6)
# G9 L: C7 ?6 y. p - (if (<= radmid 120) (setq order 7)
& @. M1 S' d" R9 |" [ - (if (<= radmid 180) (setq order 8)
* y- M# h$ }: ^$ }. \5 M - (if (<= radmid 250) (setq order 9)
9 A5 ^8 R7 p& R# N - (if (<= radmid 315) (setq order 10)+ e5 q$ e4 M/ d5 N# {
- (if (<= radmid 400) (setq order 11)
! R' [% G* f; W1 y/ ? - (if (<= radmid 500) (setq order 12)/ J4 y. B; [1 z2 C% j# v( |+ i6 O
- )))))))))))))
@' G# r' n% [( d: Q - 8 R# H6 E6 Y: d( x6 t
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带% h8 Y5 [0 X& E0 p
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))4 O3 l5 q& x. K* T" I
- (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))3 s: C+ Z- p$ w X
- )))
/ Q$ y, ?4 _5 y) G/ \# D - ; b/ J1 y) \% G& F
- (setq h (* 0.866025 threadpitch)) ; 计算齿高& j, r( M8 [2 u: t+ H1 f! y
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
8 L8 t! G% \. Y. M - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
, q8 O! e! i% l6 C- t/ T - (setq threadangle (+ 30 0)) ; 计算齿顶角
+ D$ Q+ k' d2 |# {1 h- ?3 B
2 V. ?7 N4 T; ~1 N- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数
, D) A4 ?- ^7 P& p7 y6 q
. _( J) K+ ^' X3 K r. s- (princ "
4 W0 K2 H1 D" {) d - 三维螺纹创建完成")) ~4 d) ~; F" _$ ]# \9 \
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
! ?1 R% D( Q) Y; }) V$ A - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值7 [5 m( A# B- {- m, A! k3 [& v! b
- (princ)
3 _$ F" e+ {' b4 U$ a% J - )$ y; s$ X2 N9 J. W9 v
- ( x2 Y" S: a% k5 Y% N! G! C
- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
; t7 v9 V6 l4 v5 |$ U! `* [4 j: B - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
/ x p# O8 o4 ?! i1 U0 y" D
& W2 q: T6 G4 C+ [2 _! t l" I& ~3 _- ;(command "undo" "begin") ; 开始undo步骤0 P+ X( h6 T$ h. L" W
6 J. ]; K7 M: @- S# @# j- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)6 r- H$ Y" L# \8 l% W5 o
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
8 J" R+ Q$ e+ U! ?/ U+ _ - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
! r, |5 \3 h: C4 ]( S5 n7 F( h - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)" z- q) c; c: x2 j
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
% x0 {6 f/ }7 T - ang (angle pttmp1 pttmp3)( ^- M* U% |; p7 J0 c( ~# U3 C
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
3 R" s6 a, ~5 ~; F& Q/ O9 C2 @ - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
, r8 T1 [ R# X. e- n! c: v0 @: U; o - pt3a (polar pt1a ang radouter)
, h; o# f8 u1 o1 {+ P" u( J# I - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)& o7 W5 d) n& I! E6 l8 g
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0)); B2 q* a! |2 R# D" ?! m" K
- pt3b (polar pt1b ang radouter)
% z4 n8 i4 w+ f' F! g) } - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
9 p* u/ S: y. {$ V# X - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)* }2 e+ _5 |& S: F$ s
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
: s1 X/ Y/ V3 u/ e6 a - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)3 w0 ~ a) V( _
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
; l6 H, h4 a: s' m2 B - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
6 R, `! K4 B4 M. F - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
$ H+ i2 c( y& _1 N - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
0 d3 I# x, e1 x+ ?0 y0 i - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
3 C; o# A/ ^9 }* H9 i/ O( a - )
$ d6 O% l1 O9 {8 d2 n
0 }! X) K* j- [0 B8 o- ;-------------------------------------------------------------------
0 t8 ~( j; [- v' W8 X - ; 绘制两个倒置的并偏移1/2螺距的圆锥, [3 T8 V6 U: d0 }! ~
- ; 这两个圆锥都以中剖面剖分
- V* f7 W# ?) t e' i! Q - ; 进行并集运算
' Y- S: }# Q/ U - ;-------------------------------------------------------------------3 u* @% m4 ]$ l0 p8 z# c$ W
& P _ B3 J! `- (SETQ startcone "order")
. ~/ l+ N( [# X+ \% B - (SETQ endcone "Y")
: ^: @+ a3 q2 a6 X# h s u - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)" u, V( ^' B' y# x
- 1 J$ ~" b' U# s, r; P, `
- (princ "
5 O' W6 j! Y8 x3 C' b; w - 正在绘制三维螺纹，请等待")
. B2 ~4 I7 A* Y1 ^/ w& y" g - (command "pline" pttmp1 pttmp5 pttmp6 "c")
+ Z( J" X& g; L - (command "revolve" "l" "" pttmp5 pttmp6 "")$ a' g2 K1 t% l; X- P5 Z
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
) {9 H$ N; ~% A8 f - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)# a1 F( q, B) n
- (setq tstmp (ssadd (entlast)))/ |9 e# e$ C1 D& \' C u
- (command "pline" pttmp3 pttmp9 pttmp10 "c")
/ |) {" ?& n* a - (command "revolve" "l" "" pttmp9 pttmp10 "")2 S5 {9 c6 L, E; c! d y
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
5 u. x* m/ D6 N" w - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3) e6 j7 L4 c2 o& |
- (setq tstmp (ssadd (entlast) tstmp))4 I& d# n- T& {! e3 i
- (command "union" tstmp "")
0 |# U. u5 Y- b" T, L - - N) k7 J2 a P6 A* ]$ ~+ o
- ;-------------------------------------------------------------------
# C* t, Y6 b/ M0 ]4 [; v7 ? - ; 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
0 W/ v6 W$ P% r! g+ ?* N ~+ N2 V$ W - ; 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7 }6 E7 Z. o. F# \0 K( b+ v
- ; 在最后一步被切除: c. a' p& J( N. K# I( b- ]
- ;-------------------------------------------------------------------
9 w/ K) ]: o6 Q$ r% U9 z - 4 V8 {5 `* c4 \
- (command "slice" tstmp "" "xy" ptStart "b")
; `& K$ a a) o* V5 m* Y - (setq tstmp (ssadd (entlast) tstmp))3 P) ]: ^7 T; e" V3 |$ k( w
- (command "mirror" "l" "" pttmp1 "@10<0" "y")
5 V0 P, Y9 _7 {) Q$ j; r% y - (command "union" tstmp "")5 B! Y2 k6 E& N& w& |5 U) f( a
- : w" ~. a' m# \
- ;-------------------------------------------------------------------
+ ]2 [* N% `8 y; { - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）& z1 W! n! F; T# R) |
- ; 得到的实体再切除到指定的螺旋高度4 O0 K: G, t8 L0 t% O9 ^. x- V
- ;-------------------------------------------------------------------
4 H( c5 o' t4 ?- b5 C
' k) v n% r S3 [% `- (setq e (entlast))! A; b% P0 L+ B$ z- P
- (command "array" tstmp "" "r" ttal 1 threadpitch)
/ p" s' b: D r( L$ X - (repeat (1- ttal): o% ]1 m+ A$ X, b* z% w
- (setq e (entnext e)
1 x. t% F9 K* Z8 z. D% ~ - tstmp (ssadd e tstmp)
2 D) m2 o, b( ~) \/ V - )
1 i8 v: h0 ]$ C, ^* L - )
( |; v; ^% d2 c M w- M - (command "union" tstmp "")2 @' q0 U- L! d) J
& [& R2 h# ^* K: ~& V) ?+ x- ; 若开始创建45度的圆锥
1 @3 R s6 n: Q0 ` - (if (/= startcone "order")
- _% K. ]4 B- { - (progn (setq e (entlast))
* x% z4 C0 y, u$ g - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
7 T3 Y; }4 Y4 d) a/ h - (command "union" "l" e "")$ U. n" M( i, `; ^3 x0 s- |
- )% f0 z9 u' v! ?: ?
- )
0 V7 E& f7 X9 C- i3 j* [) | - $ h1 L+ b, `8 T! f) J: M
- (command "slice" "l" "" "zx" pttmp11 pttmp12)- G6 s9 L s( ` }
- (command "slice" "l" "" "zx" pttmp12 pttmp11)
5 V; s( Z* j% F - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) 4 Y8 J- S( Z( |* R6 ^7 d+ t- H
- ) i: _+ E8 E# p3 K5 J: M$ W
- ; 创建最小直径的圆柱体，然后与螺旋作交集% U* _5 M$ @) F
- (setq e (entlast))8 e1 I2 R3 }+ |6 x. N" q
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
8 u4 E6 t) C( Q& B7 i* P - (command "union" "l" e "")
8 B, `2 Q+ j- W- G* V. [' N/ g - (setq tstmp (entlast))
4 w) t' @5 `" ]4 y - - S" T" q! S! p7 n7 f
- ; 创建中空的圆柱体( b7 X L. X1 Y) d: o
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia9 d2 _: H" J- N6 O1 {4 c9 W+ P
- (setq e (entlast))# M- o3 _0 Z- l2 o( {7 I4 p
) d% z: l0 Y* |# T' S4 M0 d- ; 若最后创建45度的圆锥; t2 H# Q7 x6 c# P. z
- (if (/= endcone "order")
( L8 r$ t9 [3 A - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) 2 H& `- x2 Z2 d2 H- @& A% M* }: {
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) % n& f7 V7 s( O% N6 L
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))8 O( U" w; s4 y2 Z
- (command "union" "l" e "")
3 {7 b( N. ` t. u1 m, y D5 k7 V - (setq e (entlast))+ j: V0 d$ h; V2 r3 O j8 f
- )' a0 W6 S V8 [0 Q
- )
! Y3 O: A$ Y. m0 O' b9 g% D - ) G: g: w" R1 `& o$ B% `
- ; 从大圆柱中减去小直径圆柱
& V0 U/ X/ M8 S - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
% W7 Q- x& I q7 S, v - (command "subtract" "l" "" e "")6 v3 Q3 V3 i; p" |) U
- (setq e (entlast)) k2 k( b; I# k3 ^* Q; |( Q
+ Y. W3 L( m4 u; @% A' S- ; 从螺旋中减去圆柱
. d* U6 N0 A |9 K1 F - (command "subtract" tstmp "" e "")2 q+ P' \8 j& p8 y
' s- R7 t# ^7 `8 ~- ; 如果螺旋长度为负然后镜像
, ?8 `2 P$ h" V& Y$ L - (setq e (entlast))
# L7 i4 J6 T5 }$ o+ f - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))4 ?: _+ O2 l z7 F2 L. P+ V3 ^
% e' m) F8 o# L' A- (command "zoom" "p"); G1 i+ \2 p3 c( P
- ; (command "undo" "end") ; 结束undo步骤
+ o- g( L! V+ H+ w, U - )5 `/ |; W, ]( t, t# z# G0 ~. X
- & q! C) u8 Z& L$ Y# a. i
- ;;;---------------------------------------------------------------------------------------------------------------------;2 X; A0 M0 ]1 ^9 p+ p d5 b
- (arxload "geom3d" nil)
+ Y4 l/ k0 w o$ m% d" D - (princ "9 s$ A% r# x7 A* R$ i; Z X" b1 P
- 3DThread 已加载。 ")
9 v7 V- E$ K0 Q: J: E3 Z - (princ)
m3 v2 A/ u" i! _3 D& Y. O' _
& I; k: ~4 C6 K/ y
# n; n& ^0 u& g6 B W三、弹簧源程序- k+ P. h# g) f# k
- (defun errMsg (s) ; 当命令执行时出现错误
1 e, N# W$ D3 O2 R3 g - ; 例如用户按下了CTRL + C- F2 t6 q: }8 x' L
- (if (/= s "Function cancelled"): s* m! u H! z3 a r
- (princ (strcat "
& `' a! @' [; Z9 Z0 Z; u3 K - Error: " s))
a7 [ @/ L+ Q1 \2 e' U, ]4 q - )
1 F; r: s! v7 W, g3 J( ~! D - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值3 P4 x9 S! O8 M& z. t7 q
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
7 l2 c# a. Y8 F - (setq *error* olderror) ; 恢复旧的错误处理9 S2 ]2 C4 C; I3 C& t2 v
- (princ)8 d! M6 g$ d# J1 N$ u
- )
+ A- S% L3 a& H0 L% g: t - - }2 v4 s; p5 y3 T
- (defun spring (nRepeat cntPoint bhfac lr strad bvfac# n# A3 @! r! ^. Y [* Z( g
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
1 q9 G1 j8 Y. S) a" U - * R- Y! T, J1 @$ I
- (setvar "blipmode" 0) ; 关闭 blipmode
% N0 }. F! M% C' G* B3 M1 n - (setvar "cmdecho" 0) ; 关闭 cmdecho
v P. `( j# ?! L - (setq Pi2 (* 3.14159265 2))- D1 Z! M4 K$ q' q3 h
- (setq aGrw (/ Pi2 lr))% ]5 _" ^, P* m) u* x! f9 j
- (setq dhGrw (/ bhfac lr))
( i7 W. j2 h. | - (if bvfac (setq dvGrw (/ bvfac lr)))! q$ E3 o, e2 k7 y
- (setq angle 0.0)
' V- i x0 V! F, N+ m: _$ } - (if bvfac/ [/ P" C7 P# A
- (setq distnc strad dv 0.0)- w. H+ k* R5 }# S q# F8 q
- (setq distnc 0.0)
; L# u+ ^2 m# X5 c - )
, b8 _5 z Z c" [4 a* } - (if bvfac
0 J; C) c2 ?0 p - (command "3dpoly") ; 开始绘制弹簧9 B/ |9 ~0 x4 `" A7 u* U
- (command "pline" cntPoint) ; 从基点开始绘制弹簧
) p! m8 [7 V- c7 h. c! { - )
3 I% J- C, T' x/ ^; `% n5 E - (repeat nRepeat 6 r8 H8 _& P1 i$ ^( [
- (repeat lr 9 L) C- E, d' w
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))9 R$ N2 M( c- g
- (setq distnc (+ distnc dhGrw))% j& f4 j! V' x! i5 x
- )
% {0 T2 Q' g2 d5 \4 q& ` - )
. e$ T$ f9 e" l; M1 l% \" s - (if bvfac
, W; Q8 G' _% M - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))5 }- m6 h0 ~0 R& f& {
- dv (+ dv dvGrw)
% k% L2 c- J7 B. q - )
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- (command tp) ; 继续输入下一点, e* o8 K& L$ z1 Y
- )
8 |+ |" r& O- s/ C# _6 M: L! X: S" H - )
- N4 A0 \( G- o) _) S* C - (command "") ; 输入结束
) ?* @* ^: e2 t - (princ)! w; y- z( @! k5 V
- )
8 o8 f0 |8 J8 Q* _ - % Z& U. b+ e2 {
- ;;;( b' ~/ y* Q" o) s
- ;;; 生成三维弹簧函数调用接口+ r/ q" D$ [7 ]1 E- @' V# P
- ;;;
# X% j1 E$ Q9 L2 k/ @" {7 i$ m - 7 _( Z: S$ U* v6 o' x
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
. L6 ^% o" G) _7 { - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
# L% ^4 k9 E9 S% `5 X8 T5 K - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复% b A7 { i/ G4 v
- (setvar "cmdecho" 0) ; 关闭 cmdecho 5 Q: T% ?' @ h; J; C: z8 A# a
- (initget 1) ; cntPt 必须非空
% Z4 _7 D4 ~1 X - (setq cntPt (getpoint "" I4 ?5 i4 I; f" ~
- 请输入底部中心点: "))
7 F& M: M2 ?, x2 I4 g; U; g: ^ - (initget 7) ; RottCnt 必须非零、非空,不可忽略& l- s% x0 N3 s( E1 @' A6 p. C. E
- (setq RottCnt (getint "% \( c0 }0 |% C# B1 V
- 旋转的圈数: "))
% J% A8 m9 I n% p m2 Q# A - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
# g8 I {4 o5 L. `: S - (setq bgnRdtn (getdist cntPt "
g' T/ m; k- ` ?8 l - 起始半径: "))
" w- v, M1 G9 G* l4 _- Q6 U0 {2 A - (initget 1) ; cf 必须非零、非空
8 c0 f9 r5 i3 g - (setq horiGrw (getdist "
2 b$ F) I: h* x5 A* R8 y - 每一圈的水平增长距离: "))! l5 n1 x3 T9 k6 }* p
- (initget 3) ; cf 必须非零、非空" \4 ^: t# F) L1 f" p7 {- x d3 q: n1 ~9 \
- (setq vertGrw (getdist "- K' d& k0 h' W4 ]
- 每一圈的垂直增长距离: "))
! y, t- W. u/ y/ `7 Y# e - (initget 6) ; ptCntPerCircle 必须非零、不可忽略
; p1 S' H" Z: C* T9 ] - (setq ptCntPerCircle (getint " H8 _: K7 e- e5 B& B7 E
- 每一圈的插值点数<35>: "))
9 G/ A% y5 v5 C; @$ c' E: \ - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) ! q! B7 V. }: m( x$ _
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
( Q8 U( k- v) m; f- j - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
4 x. G+ Z% ~! U2 i& @ - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
+ P! T+ i3 ?. l- P - (setq *error* olderror) ; Restore old *error* handler$ D% P3 l l. O
- (princ)( ?5 f9 N1 h" ?% [- d
- 7 I- x, J4 x+ R% R1 a
- )
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
