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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) C8 T% m1 @$ T4 F$ l# M( G5 x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:
/ P( I. E$ _, k一、齿轮轮齿渐开渐开线: e0 B }% ~& i
8 D N" O& b! w* K( J1 N$ }- (defun c:gear(/)& J. q- b, {( B# I- g
- (
% ~3 }0 P2 x: f1 F - setq% j* `( p8 @1 m4 N
- p0 (getpoint"输入齿轮中心p0: ")( O, o# U E9 ?8 u; o- s3 {
- m (getreal"输入齿轮模数M: ")! z6 k% y$ L* C8 \5 X7 ]( E4 X6 H
- z (getint"输入齿轮齿数Z: ")4 {" n3 ]' \( x" V$ O7 I7 e
- ha 1. l W- ]+ [" H: S6 M4 U
- c 0.252 o* s5 Y+ L' W$ n) Y
- a (/ pi 9)3 A' h4 }) {/ M# L9 c2 N% D4 k
- ra(/ (* (+ z (+ ha ha)) m) 2)0 ]$ M/ F1 V l& A& q
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)6 B7 m4 d6 G. Q! X2 d3 q
- r(/ ( * m z) 2)
6 D* l' t1 m/ s( [6 C7 S$ u: w" w - rb ( * r (cos a))# R1 W! E# Z ~/ q
- ri rb- |& a' [& Y" n- r f, y l- X
- ang 0
( ?) H+ H9 \! \7 B, R - g (polar p0 ang rb)
2 Q3 H9 {+ }, O - )$ v( T9 k. u8 s. V+ p: w3 t- x
- (command "circle" p0 ra)& |$ t& w- k$ E( H$ a4 s$ Q
- (command "circle" p0 rf)* i u9 B. K8 J: d8 P; J
- (command "circle" p0 r)
% a* S1 Q1 l% Q( L6 g0 B7 @ - (command "line" g)
8 q2 w6 b. `8 V7 d - ) ]1 i5 } p/ Q( ^/ K9 I
- (while (< ri ra)* i# ?( E3 Z7 x3 z* k2 d% F' ?
- (setq% N, @8 e( [+ i
- ang ( + ang(/ pi 360))) }5 B: P" t, L% w1 S7 ^
- ri ( / rb (cos ang))
" \" H w; G F4 B - cta ( - (/ (sin ang) (cos ang)) ang)
% a- m3 |) X; @% B G0 t - g(polar p0 cta ri)
$ {; O# _2 t: h/ z - )
( E5 I/ Q. m/ m, J( b4 b4 y8 S7 p
5 |3 `9 s3 k/ F- y- (command g)
7 Q/ R# m8 o; r% y - )5 L% h" k- m" f$ X0 c
- (command ) 7 B2 i) x" a1 S# V( [ t2 F4 d
- ); k5 v& H5 |- q1 g
复制代码 * e2 W5 V2 o! W
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二、螺旋源程序
- G A' G% m4 o' R7 z% C* o1 `" Z, i: U* d, f/ h
- (defun errMsg (s)
3 A7 O8 t4 s& ~. l, } - (if (/= s "function cancelled") (princ (strcat "
3 l* \ y" S' r" ^# g+ k: U1 N - Error: " s)))) p4 ^/ F4 d. w% Q
- ; 当命令执行时出现错误7 [4 n' K6 g0 a# d& s; j
- (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
* c% b# g7 Q8 j1 p* \3 B3 I7 @2 F9 {- f - (setvar "osmode" osmold)
' K! _& W2 l% H+ S1 x( `0 {* e - (setq *error* olderr) ; 恢复旧的错误处理& S$ `0 }; }' Q% v$ S! c
- (princ)8 b j: l" P; G2 ?2 B1 t% F
- )
' d+ d7 \5 E8 B1 N F X
3 |4 M5 Q: L: p, t" a- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle + H6 u- J0 i$ z/ P
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
4 V7 A& ]- ]9 A6 i: s( A - ;-------------------------------------------------------------------# O+ I& b9 V3 c
- ; 获取公制外径大小、螺距总长! s) {/ I3 K- u! o9 U
- ; 然后计算一系列几何点 p- |4 |4 H7 ?% a$ y% i1 H
- ; 并且关闭对象捕捉、命令回显# a* y e' r( F$ s+ D. W
- ;-------------------------------------------------------------------- c3 K. _; J5 K% c
- (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)) ( H5 I& |% p" P9 K( _; l6 r
- (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)) ; \; \- K( d+ f+ m# ~% o
- (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))
4 o9 D! l l# Q: q: t5 \ - (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)) % J U" _; H# M7 V) Z6 c
- (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))
3 P9 p& m4 V8 g* r
% Z* S$ T4 f8 j9 h, t1 P* q. R7 H" D- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值- Q E% [% @. c X$ }( r
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
5 V' ^& I8 G- L( X" s/ _2 U - (setvar "osmode" 0) ; 关闭对象捕捉 3 l) D+ {- x( y" K" g( h
- (setvar "cmdecho" 0) ; 关闭命令的回显
0 q% L3 H5 g) h; Q
" Y2 I' {: A3 Q% R* l- (setq innerdiafactor 1.5) ; 设置内径系数3 [, A) z1 \1 Z& N* O5 X& s
- (initget 7) ; radmid 必须非零、非空、非负" t/ w& ?9 |3 ]. _
- (setq radmid (getdist "
/ ^# z% F- d% y! ]$ P. b# ^' X- f - 公制外径: "))
n5 M' N! ~- F5 M1 u, g9 s" Q - (initget 7) ; threadpitch 必须非零、非空、非负) K& }; U7 R8 M0 ^
- (setq threadpitch (getreal "% c% A" L3 z% V" H7 s
- 螺距: "))
5 }" h7 c0 N- u" U% b - (initget 1) ; ptStart 必须非空
4 r7 v8 c2 b' |6 S+ h* E - (setq ptStart (getpoint "/ w- s0 I: K' p$ c7 x F F( z# {
- 起始点: "))
6 b+ a# I# w+ u: Z& _- w4 C9 g# x - (initget 3) ; threadlength 必须非零、非空、非负' b) D+ ^0 O; F. q
- (setq threadlength (getdist "
$ ~$ G+ P* V9 T$ t" E8 P# \) A. K$ F - 螺纹总长(Y方向): "))7 L+ j. b7 Q7 {+ Q8 ^: k
2 N- S2 n( c; ?$ l* S- ; 对公制外径添加公差4 D- i. @) @. B6 g$ g
- (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
) k7 ^+ K% c, K4 R/ I, h6 H - (if (<= radmid 6) (setq order 1) p- |0 P& m$ k1 |7 p
- (if (<= radmid 10) (setq order 2)7 q2 b: F) R6 h' m
- (if (<= radmid 18) (setq order 3). Y' E+ }! M F6 H
- (if (<= radmid 30) (setq order 4)
+ d' w1 o$ Z- a/ Z$ s - (if (<= radmid 50) (setq order 5)
2 k Q; a ]" F) w: Q+ u: P6 X - (if (<= radmid 80) (setq order 6)
+ E% c% s' ]" H0 D7 }) v K, d( {5 V - (if (<= radmid 120) (setq order 7)
]* p- k: p( H7 h6 I - (if (<= radmid 180) (setq order 8)& ]( m6 ]' I% j/ q) j R
- (if (<= radmid 250) (setq order 9)
/ W2 ^+ G( W3 p) `& C - (if (<= radmid 315) (setq order 10)
! J( o3 C0 ?# `2 r - (if (<= radmid 400) (setq order 11)
5 c* f- }( g2 D; I- Q) u( [ - (if (<= radmid 500) (setq order 12)$ ^( I1 V* C4 Z' c
- )))))))))))))
4 E9 E! O9 c) U, O4 w$ y - ! A( m9 q# B6 ]/ o( ?" T
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
k8 V- F6 ]" G/ J( n8 P6 v - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
+ T! t& n3 r5 W- R: g2 l% A - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))0 j( n a/ u: D2 I
- )))
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- (setq h (* 0.866025 threadpitch)) ; 计算齿高
! h6 O6 @/ S9 x- P/ Y) q: I$ I% @ - (setq radouter (+ radmid (/ h 4))) ; 计算外径
/ L( P" W. H, D. ]- g7 F6 U- L- I - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
|" A4 y/ @( T, L: A, B6 P( w - (setq threadangle (+ 30 0)) ; 计算齿顶角! ~ j7 K2 F9 G; P. @, P; R
- ) l1 v' v% [ l$ ]. e {
- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数
( O: I* F& a | t) V( i( ~ - - x1 [; q- c6 F1 ~& z' V
- (princ "5 X" x8 {1 j& j; U" F Y( T! e6 P5 q
- 三维螺纹创建完成")* ]) i/ e' v2 {. ]/ S6 |) b. F) a- w
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值7 K- }' |1 p, |1 U2 A i
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
- T; m$ M' m! d! ^1 S1 o) [ - (princ)+ d/ y6 c& k9 n6 Z& P2 {
- ); P% z9 S& i; f& x* x
- r! n8 g X" I, u; M% @- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
( b% F8 U' E$ H2 `0 R3 e - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)! m3 R% Z0 ?. s; j L! ~
- 4 x& V, i9 E5 w" u6 M
- ;(command "undo" "begin") ; 开始undo步骤5 q3 q5 [6 m7 [0 V, h
, W/ S1 |- D1 _" i- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)! o1 a/ E: i2 B" b. y' g* q' q5 V
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
% J [ D1 k; b - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))7 U) R& U- A/ T5 e/ e" E
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)) t6 L. n9 j5 H o( _6 t1 ~
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))- d1 P2 `& r5 ?+ d8 L
- ang (angle pttmp1 pttmp3)
$ S w8 K7 E. z# h* F( Z0 T( w- U - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)- j6 W. X3 G9 B1 m x
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))8 r0 Y4 A4 E1 x& |
- pt3a (polar pt1a ang radouter)0 ]: V+ x" b7 G4 O4 H S
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)9 v5 ~+ z- i9 k* l+ G
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))
" c: V9 w9 b+ o - pt3b (polar pt1b ang radouter). d' n/ ?4 Q% S" e- Z2 S0 H) z
- pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
' e3 e( S2 e) ]8 \& I* Q9 y" f - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil). J" J, H! |' A9 B. W3 U
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
5 W+ R9 c/ ]* b9 x - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)# C) X# u m& P% f4 z" H
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)0 K" t, @* [+ q6 Q3 _! P
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)3 p7 b$ i, T1 A% ^2 y/ V
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
4 S+ t' `; F @0 {6 z2 C7 l - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)2 q/ e/ C5 n3 t. J( L3 R- e, K
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
; D0 ?- n: Y6 @$ S0 e$ t4 J - )' F% |1 w: r( J% l b& V5 }( ^/ s5 m7 X0 P
- 0 x' S" D# N/ ?; r4 ~
- ;-------------------------------------------------------------------
$ u& O. M8 R" F - ; 绘制两个倒置的并偏移1/2螺距的圆锥
# b6 m+ i8 C' Y - ; 这两个圆锥都以中剖面剖分
4 L8 e' @5 @. j/ R" D - ; 进行并集运算! B2 z* c, X& G2 f1 j5 X3 {. }
- ;-------------------------------------------------------------------
$ _' G) M( d P; e/ K7 X5 ] - m2 X, }& F: z& H' K s/ g+ a' |
- (SETQ startcone "order")7 [3 o" v+ f9 A
- (SETQ endcone "Y") m$ O) M0 g) N: P1 v, V$ n
- (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)7 m) c# J$ e6 o
- ; v* k2 c2 u1 p) Y2 c
- (princ "
8 G- m& k# M3 M9 ^: b- W' k; h - 正在绘制三维螺纹,请等待"): t$ ~: t/ U1 Z* ], X; \8 T
- (command "pline" pttmp1 pttmp5 pttmp6 "c") f. R6 W; M9 y* x" i- p5 b9 I& N# R
- (command "revolve" "l" "" pttmp5 pttmp6 "")
4 w& v3 A, u2 |4 y' D. Q - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
8 J6 P- J1 t3 x' v, Z$ \% W - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
3 w6 Y" r3 P( Z8 F8 j* P8 ?: D - (setq tstmp (ssadd (entlast)))
% ]+ K7 j+ e8 A( Z9 ]" Z: K. q - (command "pline" pttmp3 pttmp9 pttmp10 "c")) A @- A2 T9 z4 z
- (command "revolve" "l" "" pttmp9 pttmp10 "")
! O3 E: X% {. }5 `" u* i S+ R* e4 l - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)8 E b- ^- V" V1 e- h5 g
- (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
( Z, s) { x1 @2 f; g# K - (setq tstmp (ssadd (entlast) tstmp))
- {4 E t. M9 L* l - (command "union" tstmp "")
9 Q2 I' G$ @- F4 X - . N! e A* }; I1 D5 n
- ;-------------------------------------------------------------------* D5 k! c! q5 {+ L$ |2 E- D' ~/ v% e4 `
- ; 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* R; {5 I- ~; ?& d+ 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
) T# C; ~; B) _' g* W - ; 在最后一步被切除
. R. j- L0 F! K# l3 K& o3 J - ;-------------------------------------------------------------------
- z$ w% B# t! j2 t; J* e0 D - ! v7 q7 p; C' U2 ^* ]8 d
- (command "slice" tstmp "" "xy" ptStart "b")
6 J# ^: ]7 S8 w: l; q& K - (setq tstmp (ssadd (entlast) tstmp))8 \/ u( ]( G9 r# G4 \! r
- (command "mirror" "l" "" pttmp1 "@10<0" "y")
" c- i2 }6 C% D" [* f- u) b - (command "union" tstmp "")
. k7 u9 b+ Z3 F) l' Q! k- w
9 u p/ u8 [. ^, C- ;-------------------------------------------------------------------
' H- V' M7 B! N' X - ; 螺旋进行阵列操作,然后再作并集(可能会耗费一定时间)
1 s/ l) p, T: I! x - ; 得到的实体再切除到指定的螺旋高度
8 C* \. G" r( q8 @0 R. }% l9 q - ;-------------------------------------------------------------------
4 c$ u" ` \, P# w4 }; {3 B, G& U1 W - ' D7 ~. I2 {8 W5 ~
- (setq e (entlast))5 I1 K# e/ O/ J; e: j' S
- (command "array" tstmp "" "r" ttal 1 threadpitch)
6 l: @; g# }1 z$ B6 g - (repeat (1- ttal)6 L( C3 d; i0 \8 P! S
- (setq e (entnext e)" H2 A! p" f" R! O0 N: @+ R
- tstmp (ssadd e tstmp), x; G' {) b# f E* D. ]
- ); z. ~6 v s8 N1 V- X
- )
9 M7 u! F/ j1 k. m - (command "union" tstmp "")% [- {. U5 S! \# S+ p
- * u& \: D% d3 P8 i2 f* [
- ; 若开始创建45度的圆锥
# C" L9 E2 S! n; X - (if (/= startcone "order")
, _( R: v2 h$ M& X3 x - (progn (setq e (entlast))% k, K4 m r1 b( y
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
% D; j. n4 ^8 ~: l$ Y - (command "union" "l" e "")$ c, y, g" }4 G1 S% |6 x
- )
# d+ M( d1 D7 m% W. ? - )
1 G* V J+ g9 n3 L) M4 a o7 e' @- e
$ |9 X7 N* f5 f |9 o( G- (command "slice" "l" "" "zx" pttmp11 pttmp12)
6 F2 J% q6 E' [ - (command "slice" "l" "" "zx" pttmp12 pttmp11)/ E, z4 H* c0 r# b- k. `
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) - K! C% m% l! k# P c4 |9 G7 ^/ G
- g7 \& s1 D) M
- ; 创建最小直径的圆柱体,然后与螺旋作交集8 S- ^+ J1 u W# [( ]# Y. i* K
- (setq e (entlast))
& o. r6 H6 [( l) \2 ^' ~ - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))- S) z- j4 f+ ?3 {1 M
- (command "union" "l" e "")8 k* N- A+ E* G- q4 H- n
- (setq tstmp (entlast))/ s7 Y% b6 @2 s) q9 v
$ P. b% H: d! E5 _- ; 创建中空的圆柱体, U$ o1 D7 F$ \; V
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia' ~; G! ?4 y7 X6 V( y6 l) M
- (setq e (entlast))
& Y) Z3 y4 A. U% D& ~0 u4 u+ T6 b$ S
; n# v7 P9 T! ]4 ?3 v- ; 若最后创建45度的圆锥
8 K2 `0 ?# B: a. G" c3 ~. L1 c - (if (/= endcone "order")7 X7 G9 x; {2 G# o( ]
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) 3 f) o: z" A$ I* F* f" P# M
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
# c2 ]9 D; q# U( t& \ - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
3 G' ]( F* S9 w - (command "union" "l" e "")
, K9 |, e; C5 N l8 d! g* R - (setq e (entlast))
+ J" R$ J$ s& J/ `. p - )* D3 h1 z7 b) f0 `
- )
% y: T0 k, q+ Y$ ^4 X. V! w6 P - 2 v, Z6 w' H' X
- ; 从大圆柱中减去小直径圆柱2 W$ A. L& O2 l; a: M
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
2 ?! m2 U* x' n8 S5 x - (command "subtract" "l" "" e "")! X$ d/ ?+ J s6 r: @
- (setq e (entlast)); V) z' g, M0 x; {# }* \/ d
- 1 ~) ]6 x; Y$ v' i
- ; 从螺旋中减去圆柱
W v" y+ i a0 \. F - (command "subtract" tstmp "" e ""). ~% _( m8 g' u. z8 _6 `+ d
/ ^# m! @& G) t. d) D4 x- ; 如果螺旋长度为负然后镜像) W7 R. C) i) v# C
- (setq e (entlast)); ~/ T3 i6 Y, U
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))3 K3 P P2 o1 |7 g; h* e6 a! M
- 3 `& f! s' z ~) W! m& M2 q
- (command "zoom" "p")
! }% E3 a: w" b4 t2 z3 d# |+ f0 Q - ; (command "undo" "end") ; 结束undo步骤9 D0 V3 x# f. H' e. }4 C
- )
5 w# x3 [1 S/ z9 G9 {6 T7 \1 U6 k
" j* p* \" r; j! ]5 k- ;;;---------------------------------------------------------------------------------------------------------------------;3 n% n8 c& x( i6 M& Q7 F: w7 J
- (arxload "geom3d" nil)1 E; `6 g. n- U* H! _) }
- (princ "
: d* ?: _) S) J" X - 3DThread 已加载。 ")# g2 {! O" x9 N1 ?" @1 K
- (princ)
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三、弹簧源程序; g' \9 d2 `# Z! d B: ^
- (defun errMsg (s) ; 当命令执行时出现错误
- A' b! J! t3 h3 d$ l9 d j - ; 例如用户按下了CTRL + C+ m( b5 v; t0 D) M
- (if (/= s "Function cancelled")
# g7 r$ Q) _" r - (princ (strcat "$ ]0 o Y, Q- W+ U8 ?% [' B* r v
- Error: " s))
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- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
3 s2 T+ e6 l. i! C; T - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
j* c. N6 u0 j+ L. p0 Y$ p0 e - (setq *error* olderror) ; 恢复旧的错误处理
- m0 y4 K! D* W2 G5 f - (princ)
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" c( a, a) J: i/ O2 R- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
; d1 X0 I [; s - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)# g% ~. w# k9 j; m0 r' D+ k
6 p% b% ]' I1 ~2 s- (setvar "blipmode" 0) ; 关闭 blipmode
) [; x- e. O Y- F - (setvar "cmdecho" 0) ; 关闭 cmdecho" o+ ^ s" w. g/ E
- (setq Pi2 (* 3.14159265 2))
+ @3 `% [( i6 y# E$ Y - (setq aGrw (/ Pi2 lr))4 X1 M- @+ L: o8 T! J
- (setq dhGrw (/ bhfac lr))2 J j: C& w8 e& s5 I
- (if bvfac (setq dvGrw (/ bvfac lr)))- V+ ~' U9 m6 i, d
- (setq angle 0.0)
) t) @4 ^7 m4 b# P: z - (if bvfac! y5 x z6 A( I( A6 h. S8 a1 Q
- (setq distnc strad dv 0.0)
2 m+ u& P O7 d9 g" J - (setq distnc 0.0)
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4 F: i. i, p; C' Q0 X8 K - (if bvfac . Z! z8 ~* V0 J! n% A8 b/ e
- (command "3dpoly") ; 开始绘制弹簧
$ ]; L G" K. Y5 O$ B V8 S* F - (command "pline" cntPoint) ; 从基点开始绘制弹簧
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- (repeat nRepeat % e4 ]- ]2 g' s
- (repeat lr 1 Z3 A& a+ {) {" ?3 U5 F
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))7 |$ j. [' N* ]/ B! X
- (setq distnc (+ distnc dhGrw)). |* T, ?7 d* k' [! H8 C+ z9 }
- )
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. O& D6 [8 V/ D# B* u" m2 @ - (if bvfac p+ R$ R" Y; h! e# V
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
1 q6 Q3 T) W( E- ]! O) E+ g9 r - dv (+ dv dvGrw)" S# H8 H& ^4 j7 A2 x" N( M
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1 ]. x" y9 E* j; M- x) L7 G# f - (command tp) ; 继续输入下一点
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6 T) Z: |$ A+ Z5 f# }6 K - (command "") ; 输入结束
/ ^3 @: p Z& M2 n: D3 R - (princ)
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- ;;;
- ]* f( q% D; M8 V7 M) j - ;;; 生成三维弹簧函数调用接口* c7 a$ w4 O0 j" l' X0 v6 X6 d
- ;;;; @0 \( N% X, x) i7 |9 ?
$ E4 W: g6 ^* H i1 E) k, n. d: I, ~- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
# X% n9 a( ]% P0 H' a( ]9 U+ g/ ^" _ - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值,以便调用结束后恢复
4 B4 ?" w0 s% ?3 h - (setq blpmd (getvar "blipmode")) ; 获取blipmode值,以便调用结束后恢复9 L; r/ Q" K) c$ P0 |1 U \; X
- (setvar "cmdecho" 0) ; 关闭 cmdecho
, E+ _8 c) r0 i$ j* C, }$ S4 W - (initget 1) ; cntPt 必须非空7 L2 C+ U o8 T* }
- (setq cntPt (getpoint "
7 o, f' W. U7 P9 v# B0 P. ^! o: G - 请输入底部中心点: "))
" Q" l* H' b4 E4 | - (initget 7) ; RottCnt 必须非零、非空,不可忽略7 T" h# B5 R8 R& a1 o
- (setq RottCnt (getint "
' [; J/ }1 n, H - 旋转的圈数: "))
1 k4 t. i% Y, R' a - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略! t b) u8 |; T+ J. x
- (setq bgnRdtn (getdist cntPt "( ^+ e' U) j* O
- 起始半径: "))2 X: c/ q( k4 H
- (initget 1) ; cf 必须非零、非空
0 ^1 }9 L# s: _" O* a% k - (setq horiGrw (getdist "
. g9 l. f1 w" s- F - 每一圈的水平增长距离: "))
& S# F) R. _, c- D3 `% W1 W - (initget 3) ; cf 必须非零、非空
/ A) J+ H3 b+ C - (setq vertGrw (getdist "! z9 C) Q+ \0 T3 U: A
- 每一圈的垂直增长距离: "))! l) ?& L/ Y$ d' b, Y9 R4 x
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略4 G/ L1 h* m* G6 x5 [9 ?! ]- ]
- (setq ptCntPerCircle (getint "
9 Z' m0 S2 Y7 U! p' ~/ c0 ~, n - 每一圈的插值点数<35>: "))( M: c$ f2 g' Y3 Y- x" N0 ], m; V
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) % t6 o* X+ @8 ~6 P
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
" n( V3 R( W9 \& {5 M- p - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值) i: f9 c/ F7 O' k. L. j$ R
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值$ I3 h! s a. P# z4 V, o
- (setq *error* olderror) ; Restore old *error* handler
% A/ c. }6 P; f/ a. E - (princ)) B: r% O3 g& }% e! B% Q/ o
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