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: J6 ]4 t- m$ @3 ]% |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：2 x5 Q3 J$ m: {. [' c( ~1 c
一、齿轮轮齿渐开渐开线2 U7 p( l& ~: v. J0 t- n- F& g3 v/ V
( F1 H0 c, ?0 [/ H" d- (defun c:gear(/)
: X& U2 l; N% e5 S - (
! |5 o8 O$ r6 @& y2 s - setq
3 ^/ `2 }1 f5 Z7 o5 ^8 y - p0 (getpoint"输入齿轮中心p0: ")
$ I. x% d U) M1 { - m (getreal"输入齿轮模数M: ")
# B# b% D% o7 ]4 E3 Z - z (getint"输入齿轮齿数Z: ")
) x) l5 L& S: y- H - ha 11 t; x" i3 q' z% J q( J
- c 0.25
6 t- i2 [! E/ ^+ C* ^ - a (/ pi 9)
. R# ?) b1 Y6 s7 O - ra(/ (* (+ z (+ ha ha)) m) 2)
. x7 b$ @7 k4 k: r5 Y4 C! {. U - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
% l; H6 M0 f# \, v/ N7 A- D. h" N - r(/ ( * m z) 2)/ j7 ?4 O8 _. n2 f
- rb ( * r (cos a))1 o7 o/ v) X1 K9 @
- ri rb
6 U" D, ?1 X V# _ - ang 0
! Y# M+ |* U* x* C. s3 j. v - g (polar p0 ang rb)
" U! p$ }8 w3 u! v7 b! l5 o - )
$ u# z7 c6 T! y - (command "circle" p0 ra)( F3 g$ ~, H' L i) e
- (command "circle" p0 rf)
N( J% V8 q: o2 c* O0 g# H - (command "circle" p0 r)* Q5 d: [* g0 ^* H2 c% |* _
- (command "line" g)# j% W' y6 Z" k0 f U
-
s+ Q! O5 \9 \. P0 w - (while (< ri ra)" u. A4 f6 Z8 m" O% Z! {3 ?
- (setq
3 O( H* ^7 O' Z( T- C/ i* R - ang ( + ang(/ pi 360))
. V. C8 f+ G; q# C5 Z* J, P - ri ( / rb (cos ang))9 v/ t/ |( |5 H4 @$ _! S) b
- cta ( - (/ (sin ang) (cos ang)) ang)
5 o Q: @! a% O. Q - g(polar p0 cta ri)
' X( i2 W" G1 s4 X) j6 D - )
7 V( U7 h* n4 b9 c
: x3 p6 U! H, ^# G; B. @7 o/ j- (command g)% P$ i. e$ h8 M
- )
8 l7 ~9 J2 h' }* V2 a - (command ) % D% j- Y& L+ d# [# d. A( H0 P
- )
0 E( S8 z G1 {& b5 o
) t- j, \4 E$ b5 }4 \8 _2 r0 Q6 q6 B% t
二、螺旋源程序
' }" Q* B$ a5 c, l4 q m& s: {
, N) K1 N, I+ h- (defun errMsg (s)( I' v2 z A6 q' t/ v! G) r
- (if (/= s "function cancelled") (princ (strcat "
' e$ @4 \# N9 ?2 } - Error: " s)))& l+ E4 s3 x+ T2 e% _: H9 z
- ; 当命令执行时出现错误
' H% a5 p. y+ v n8 p9 S# g( C - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C4 @2 M0 ?, e0 R1 _ i% q0 I7 J
- (setvar "osmode" osmold)6 }: r* _' J& }" K% {3 k
- (setq *error* olderr) ; 恢复旧的错误处理
9 H) R4 G- Z' Q4 U& ~0 X - (princ)* m4 T) G k& f! O
- )
7 t& A2 S9 N0 {9 ~* j C$ ^ - 9 a' c* }' _1 p
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle
0 g |* I) F$ ^4 ^, m - ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
" }0 u1 @+ f y8 a. \# k - ;-------------------------------------------------------------------# ~+ f# l# T2 m+ G
- ; 获取公制外径大小、螺距总长
/ r: J+ D: J4 P7 Z - ; 然后计算一系列几何点$ U- {2 \# X: [" Y
- ; 并且关闭对象捕捉、命令回显
* ^& Z8 [8 _# d: b8 ]) M9 Y$ x" k - ;------------------------------------------------------------------- b; M. u: N2 A% L
- (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)) 0 g. T4 B' K; w: F6 Y
- (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)) - n+ ~) [4 }0 `
- (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, m+ s* ^1 p" P* J - (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))
5 x. t5 K) m3 S. S% P( v, i* R - (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))
6 O O) J! @8 B1 k: J9 q - ; ?4 W4 o* B/ v4 c
- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
+ `6 G& y+ s( u' Q - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值) v' g9 C! x# [6 B( N
- (setvar "osmode" 0) ; 关闭对象捕捉
?/ |% I1 b) [: v) J6 h - (setvar "cmdecho" 0) ; 关闭命令的回显
) L* n; g) v0 Q - 9 J, ~0 l2 r# X% z
- (setq innerdiafactor 1.5) ; 设置内径系数
& M J( d7 w x! ] - (initget 7) ; radmid 必须非零、非空、非负1 P/ F5 z- S4 I Q
- (setq radmid (getdist "% G; x' Z2 I/ k; f0 }8 U
- 公制外径: "))
% ]6 R8 K9 c5 m( b# V% r - (initget 7) ; threadpitch 必须非零、非空、非负
5 C x' m5 k. A) H1 Y& E - (setq threadpitch (getreal "
7 Q( w( N ]8 @1 Z - 螺距: "))
, }( n8 [; ?3 p% l4 I8 H - (initget 1) ; ptStart 必须非空
; M% {: q2 Y1 c- S3 M - (setq ptStart (getpoint "
1 H. n8 v% p, O M - 起始点: "))0 d4 ~9 g. ~$ p9 T
- (initget 3) ; threadlength 必须非零、非空、非负- Q6 J+ ~+ d7 Z6 `
- (setq threadlength (getdist "
( Z X/ _: F- ~1 A - 螺纹总长(Y方向): "))
$ \/ t- e. }. p6 R! x+ E1 j& L - 3 K3 r, u) B+ W# B
- ; 对公制外径添加公差
# L' S) j+ i% `3 b - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置, f: V0 D; Q0 S
- (if (<= radmid 6) (setq order 1)0 P9 G- n4 p6 L& ~+ M, g! w/ C
- (if (<= radmid 10) (setq order 2)& X. K$ C% A$ g* x( `
- (if (<= radmid 18) (setq order 3)
/ \( B, t# K# P' Q' Q8 z - (if (<= radmid 30) (setq order 4)- S6 t7 d* i1 m7 J |
- (if (<= radmid 50) (setq order 5)
/ `& i1 u: n5 r( f4 i - (if (<= radmid 80) (setq order 6)% A5 R X$ u& G! X
- (if (<= radmid 120) (setq order 7)
! D6 f- p( M$ }3 f/ p5 z - (if (<= radmid 180) (setq order 8)- m; D. w6 ], Y9 M9 F/ A/ \
- (if (<= radmid 250) (setq order 9)
7 b: y, I3 q* J& ^* r( F - (if (<= radmid 315) (setq order 10) _# I3 M# `+ K6 K, [- ?" J
- (if (<= radmid 400) (setq order 11)* M/ p% T. t9 J# I* a! b5 |
- (if (<= radmid 500) (setq order 12)
! d: `$ D: [1 Q, K - )))))))))))))" s- o7 R7 _7 t+ [0 a
- Y) O4 I/ @. O- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带. `* g |3 T. M- E
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))9 l O2 ~+ @# w% u
- (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))" K, J' I+ ~, c
- )))8 R& P3 r3 ~" D" \3 }! I
- ) b# ?5 V/ P, A$ i/ y4 A
- (setq h (* 0.866025 threadpitch)) ; 计算齿高# l# h+ p6 ?; \, e
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
) t# D" Y1 s$ {) L, A: i - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径* d3 p! s9 H5 q M% q/ S
- (setq threadangle (+ 30 0)) ; 计算齿顶角
7 ?5 j% q8 b% ]. r+ b" ?2 W
2 \, X5 B. T; m- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数& ^& B$ m$ X! @! u! D7 }# N
8 y' t; ]" T0 y, z4 R; c- Q2 O- (princ "# M! E! W+ W; D8 x9 n( n7 `
- 三维螺纹创建完成")
# }/ S$ k G0 ~ - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值: T3 K9 [* ?: @8 Z& ?( b+ w
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值1 O) o6 g- \) k; l( y/ X3 N
- (princ): y8 `9 A8 Z0 s+ j& z; F3 y/ i
- )! q+ p0 t% d9 j o) g
. H( @2 U& i( p" Y8 L- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a3 u Q0 }4 ]& D. r2 w# r* r$ F
- pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone), r5 @5 {0 ^) G; {. W
- % L. C9 ~* s% y0 ]( l
- ;(command "undo" "begin") ; 开始undo步骤' ]; T6 H) [3 F; ^" k: f1 V0 C, {# ]
- . |0 S2 ~, R' t+ |+ o8 u0 t. m
- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3). R$ u" n: g) E
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
7 f$ g6 ~: z7 e2 O3 j+ Z, e. r3 s - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
2 o6 g6 f5 d7 H - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
9 b& l& p! B" Y: y - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
" L6 J5 U* Y Z2 t' n# x+ ^ - ang (angle pttmp1 pttmp3)
8 S1 E* l$ R p! v - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)* ~7 \$ `* z* F' ~8 u
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
: ?& k! v6 ]/ ?- Q; L. z" _* ^ A6 U8 U9 } - pt3a (polar pt1a ang radouter)
/ \% ~+ K8 l# N1 | - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)" k% a m# c G9 u$ E
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))) x; b6 m: ~; W5 W
- pt3b (polar pt1b ang radouter)# i0 l9 z: @: Y/ D" T
- pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
- l- i4 }. D& Q' ]' Y - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
2 P$ I* w" S% a& X. ` - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
4 ~/ |) s8 @- f - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)7 m. V0 F f; b* p- q$ P/ p
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
) M8 s c6 T' W: J3 l - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil); A5 n5 x7 j6 M9 [6 s
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))" |8 Z! E4 ?8 u# a0 C
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch): E- B' T# z( y0 s# A( ^- N* S; l) _
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))0 I3 K# x. { M+ v8 n
- )7 f3 H" {1 b/ u$ ]/ A m
) K! H/ c% J- ]# P2 o% Z: Z- ;-------------------------------------------------------------------- e7 g5 s) n( f- t$ m
- ; 绘制两个倒置的并偏移1/2螺距的圆锥
- | t4 t5 b( b$ S! g - ; 这两个圆锥都以中剖面剖分6 a0 L; w+ J) T5 t/ P" ]; Q
- ; 进行并集运算3 m3 G9 H. M& ?- R( A" e3 u
- ;-------------------------------------------------------------------
0 j+ e' Q5 ~1 M9 d - : v9 `. I* r ^$ B1 ]( Y
- (SETQ startcone "order")
0 y$ O2 l) B+ ]" {' d2 x - (SETQ endcone "Y")+ m) Z$ J' o) a$ f4 ^
- (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)5 l9 v6 V+ f5 a4 s7 a0 L
- 5 }6 K' Z9 I; I: V( F2 x- ?
- (princ "
3 f3 O+ }- ?# N$ e: N - 正在绘制三维螺纹，请等待")
$ a9 W' x; Q$ I1 c - (command "pline" pttmp1 pttmp5 pttmp6 "c")! W8 q% p9 A' o m) ]
- (command "revolve" "l" "" pttmp5 pttmp6 "")5 ?! g! _4 U! r: X0 u9 l
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
; C- W2 b# A+ E& N3 @! z+ \6 q/ E - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
% R/ a0 P! A- g& T - (setq tstmp (ssadd (entlast)))
: M5 W$ g* i, } - (command "pline" pttmp3 pttmp9 pttmp10 "c")
+ }! Z- o+ |! m% f+ p* ?/ v - (command "revolve" "l" "" pttmp9 pttmp10 "")
% i* d$ ~4 l5 d$ i7 {3 E Z - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
6 K6 f" g) ~9 A2 o3 O - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
3 D. _( Y* ?' m& B1 i7 Z- R - (setq tstmp (ssadd (entlast) tstmp))
$ `+ b4 e M! W; G' H6 j - (command "union" tstmp "")
0 |- S% n' h0 z4 X8 ~0 b* Q
0 H8 V8 {: s' e; D: ^- ;-------------------------------------------------------------------
6 E0 W; v3 L4 T8 S' c5 m0 Y8 ~ - ; 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 ?0 I2 X3 _9 L
- ; 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+ c, [) o+ r/ @
- ; 在最后一步被切除' U3 I( ?9 H8 T
- ;-------------------------------------------------------------------
/ @0 D2 H9 D! F( D; B2 T4 r* b0 O - 1 T( }3 _$ f* v: ~1 E- X
- (command "slice" tstmp "" "xy" ptStart "b")# Z% B( h2 \! P2 U- @5 R
- (setq tstmp (ssadd (entlast) tstmp))9 k! y: k2 J* K$ `' H! R( @
- (command "mirror" "l" "" pttmp1 "@10<0" "y")) T7 `; {, u) U& Z6 j
- (command "union" tstmp "")& C( T9 y- o" N: [3 W% P
3 B$ L9 I8 C. A6 J, Z9 X- ;-------------------------------------------------------------------
6 y" _# q& E4 g9 p. Q: v$ s; K - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）
( p9 q D! u( J' L - ; 得到的实体再切除到指定的螺旋高度) D, o( x, Y" @5 ~. q5 J8 ], ?
- ;-------------------------------------------------------------------5 u/ B1 ~" Q: i6 |$ _. L, I
- " o& I9 v* y: K5 h0 @! ?% ~$ U# v
- (setq e (entlast))+ S4 G9 i6 g" Z# q
- (command "array" tstmp "" "r" ttal 1 threadpitch)0 Y* g- K4 r" c3 \' P
- (repeat (1- ttal)7 Q$ S. s0 p# U5 H
- (setq e (entnext e)
0 a& a9 O$ N F. D - tstmp (ssadd e tstmp)
7 q* t$ v! z" s7 y1 ~* z, C - )7 B( I& ~6 m- ^1 V9 S# K
- )
" S: e/ J/ y4 P- g5 H - (command "union" tstmp "")6 r$ r; ^ D9 l" y% b$ Q( `2 i! j" S
- ' s: f3 I8 i1 h/ q% v& X1 {
- ; 若开始创建45度的圆锥8 ?' d: J+ ~8 R* l& z
- (if (/= startcone "order")/ `$ v9 Z2 P; V( v/ n2 j& A
- (progn (setq e (entlast))9 A; g1 R* u- W* H D) q1 K
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart))): H- E$ C+ J9 J" S; T) ]
- (command "union" "l" e "")6 e2 e2 P6 u) ]# Y& W) H
- )
+ R2 \* [% `2 [: Z - )
3 k$ f9 @5 O4 b: P2 i `+ W, |9 f" j
/ a4 v; H9 P8 ], u& @% e0 F& H- (command "slice" "l" "" "zx" pttmp11 pttmp12)% Z: [6 B3 j- g! O7 y
- (command "slice" "l" "" "zx" pttmp12 pttmp11)
1 G) Q- U2 A7 ?+ X- _+ ~1 y - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart)))
4 \# a& A1 I% y9 L: u - ) Q G; X- [/ n- q; M
- ; 创建最小直径的圆柱体，然后与螺旋作交集! ? L$ S6 O( T% ]
- (setq e (entlast))
8 {" w2 j% N$ m5 J0 ` - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
0 P: i9 l# U% @! \1 ? - (command "union" "l" e "")
P& i0 M3 M2 s4 i9 v3 `3 e, Z - (setq tstmp (entlast))
' {5 c1 y4 h: z+ z! p0 ~ - , ^% L+ Z) q9 X+ [+ z+ Q" _9 d
- ; 创建中空的圆柱体6 s- B0 {8 c$ N+ \$ o7 ^: A
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
1 U0 ^; f) U/ R( G/ B8 @ - (setq e (entlast))
5 O! { C3 t% ^! u% W0 B; A - 1 c3 P* u% q* k0 S4 U* M
- ; 若最后创建45度的圆锥
) `8 o. q+ x4 N E4 j0 X - (if (/= endcone "order")
$ D3 x6 K3 n9 m2 d3 m. H7 L" s - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) ' G' w7 n( a: r& |6 U0 g+ E
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
& x- N( f) j4 U$ O: }" I0 c - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
) U7 d/ j7 u( B - (command "union" "l" e "") 1 {) E. f$ {+ l( u
- (setq e (entlast))# w6 ^' S r: d7 |
- )
" {7 K) ^0 ]+ M3 i: m - ). T Q" [9 W p) x; ~5 ?3 N
- 0 K# [3 {0 T& F9 g( e1 v4 W! [
- ; 从大圆柱中减去小直径圆柱7 c. r! K/ J/ Q
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
( ^2 E5 l2 @: H4 {7 ~ - (command "subtract" "l" "" e "")8 g) i5 N+ ~2 a4 s8 `
- (setq e (entlast))* {- `' E3 t+ p$ Y$ P2 s3 Q* W
. y& m8 d3 n [- ; 从螺旋中减去圆柱
) Y. W* |& T) q! C3 S" C - (command "subtract" tstmp "" e "")
6 a* D" ?" w% E - % `1 w* W8 N; R8 \. z! M1 t2 Z
- ; 如果螺旋长度为负然后镜像
4 e' u# ] H0 R" m$ x6 u - (setq e (entlast)) p' l6 R* t0 O) p4 z* r/ b2 f7 v
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
5 i4 ~( p9 r: ]* _& p. l
3 r6 p; t$ K$ n1 ]" L. A1 Y% t- (command "zoom" "p")
9 L: Y; e6 t! r. R0 Z* a, ] - ; (command "undo" "end") ; 结束undo步骤$ y/ K% u* m5 q P( \6 F' x8 X/ `
- )
; v5 r: l/ J! d" G( G% _ - * q7 {- H' Y& |7 j% Q3 c3 K. A
- ;;;---------------------------------------------------------------------------------------------------------------------;+ O" t: i& G/ c
- (arxload "geom3d" nil)
0 T8 r6 G5 P1 q6 x9 I# y5 `' p - (princ ", c* d" ?2 o: u6 X4 y- e: X
- 3DThread 已加载。 ")
# g+ }8 A8 r) H ?' J1 R, S( r - (princ)3 x9 a1 O/ p- Y& N. p
( s5 s7 k) q1 S- z& A z! x5 h3 w6 K! |+ w
三、弹簧源程序
3 K9 Y3 n3 X; a3 |6 O% C- (defun errMsg (s) ; 当命令执行时出现错误 ) C2 m: m1 ?, B7 l' o4 Y, q
- ; 例如用户按下了CTRL + C
8 p; c) `/ `4 i5 Y3 }# b1 x& w# H - (if (/= s "Function cancelled")
: z% m5 W( {; J& z3 `: ~, c - (princ (strcat "
; p$ p: ^4 u, i4 _% s - Error: " s))' L, E5 T/ N0 I) X* ]
- )
, y. }* A6 ]" T# e7 @; d6 w - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
" a" [4 ]! x$ j6 N* T3 G - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
+ ?. ?: [+ f. V4 N - (setq *error* olderror) ; 恢复旧的错误处理
. e$ P Y p( L2 ^8 { - (princ)
0 G; n" H0 m, h) \9 }6 P; ~" h/ W( B - )
8 V' w% {; _# O - C( ^* N0 w. Y% l- P$ j% {; g
- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
* V9 F$ ^: t+ N. r* Q: J - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
0 r& Z/ b1 Z' ^. J; C F - 3 y$ f& N: z) x' }* L
- (setvar "blipmode" 0) ; 关闭 blipmode
* K p0 ?/ u; ~2 v1 H - (setvar "cmdecho" 0) ; 关闭 cmdecho
+ a( }; t* L! R$ H1 |6 j - (setq Pi2 (* 3.14159265 2))+ D! t" _6 h/ }
- (setq aGrw (/ Pi2 lr))
8 F/ z& ~+ h% ] K3 [ - (setq dhGrw (/ bhfac lr))
2 S3 R3 z4 q E5 K2 E9 g J - (if bvfac (setq dvGrw (/ bvfac lr)))7 Y; Z9 Q: {3 t3 p0 [" O
- (setq angle 0.0)1 ~! J3 Y9 o* f
- (if bvfac
* q. k; ]0 G! O+ Q - (setq distnc strad dv 0.0)
: b, q! B& c# ?8 P) _' M - (setq distnc 0.0)
+ ]% Y, J: P, U8 s ^ - )3 {7 y/ i. K( G6 N0 J
- (if bvfac
* ^7 A) U2 {1 k) ]6 I - (command "3dpoly") ; 开始绘制弹簧
" H% N3 e$ E2 C. k! J' G( ~9 r - (command "pline" cntPoint) ; 从基点开始绘制弹簧8 L. @7 d+ f: G" m% Z- k
- )
5 ]/ {) c- u) a2 T - (repeat nRepeat 5 |# o- e" c0 N: w0 x# [$ R" b
- (repeat lr
: Q* z U {* u9 I! Y - (setq tp (polar cntPoint (setq angle (+ angle aGrw))
. U* E* a0 P, ~ - (setq distnc (+ distnc dhGrw))1 l1 C# H1 i" @$ G
- )5 X e N% P5 }/ X# x" ~. e' [
- )
) ~# ~- O: E) a. T6 i; S I - (if bvfac
7 P( [3 Z2 K6 G$ o$ E - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp))): H; J. Z4 s4 ~" C
- dv (+ dv dvGrw)
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- )4 _& ~5 }) H- ?+ p
- (command tp) ; 继续输入下一点 z: M& w! T0 X$ l' v/ k1 ~
- )
! B5 V' t7 }" x" Z% d3 \" ]% ` - ) * N1 a5 r" n# S; G. j) Z
- (command "") ; 输入结束
- J. h+ |' w% }8 L- B+ o5 ? - (princ)2 m6 y/ C: g/ X/ f
- ) ' j- `6 K" d4 P# g
: b) Y. ?( E' a4 s& z/ K7 _- ;;;
8 R0 W( }; Y9 K! q* e8 s$ T0 u - ;;; 生成三维弹簧函数调用接口5 R3 Z) l2 X- d0 d6 p
- ;;;
# p& n7 ^6 w7 G/ G - * \* p- g! a1 r. b4 D0 [( F2 u
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) 1 Q( B. d% `; k7 H+ ]% b' I; w
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
2 H Z2 U! _- F/ t, Z - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复5 L# x$ G$ C+ I+ R- H, z1 L- q
- (setvar "cmdecho" 0) ; 关闭 cmdecho
7 X1 d% d, s, e! |' F; w - (initget 1) ; cntPt 必须非空- r y5 b9 m o# w9 @ ]* q2 v
- (setq cntPt (getpoint "% B' d2 p( V2 N# s
- 请输入底部中心点: ")); M5 H" |) {1 g
- (initget 7) ; RottCnt 必须非零、非空,不可忽略$ t2 |& x8 v+ u: u. M4 e
- (setq RottCnt (getint "9 d( i$ {8 r% c
- 旋转的圈数: "))& ?, g- e: p& t2 a0 p
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
0 V2 c7 N0 \1 L, m0 K - (setq bgnRdtn (getdist cntPt "
3 U/ N. R0 @2 r) E! S - 起始半径: "))6 m% D: r) C, B- U, A9 l6 w x
- (initget 1) ; cf 必须非零、非空8 q% A9 Q. m- N9 g7 _% _2 m( p
- (setq horiGrw (getdist "
( X8 _- q" o6 {; v! ?4 V# Q# X - 每一圈的水平增长距离: "))1 E7 t, d8 p) x; b$ i% K3 t3 x
- (initget 3) ; cf 必须非零、非空" r _# H" v: _1 N Y
- (setq vertGrw (getdist "
) r0 X- G2 O0 f8 z. l' p L - 每一圈的垂直增长距离: "))) z2 ?3 l3 f. a
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略/ _2 u# v4 |# Y6 J
- (setq ptCntPerCircle (getint "
% Q$ _. R" L1 t& U& O, _ - 每一圈的插值点数<35>: "))
0 {2 T/ O6 h# n! K0 v ~& {5 d - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
8 e, Q5 Q0 S3 y {$ Q - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
( q" Z1 @; L" w% g) _1 N4 \) K! R: u& u - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值! y9 ]6 F4 }* b' c" A( b
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值8 f5 c! e5 ]8 [' A
- (setq *error* olderror) ; Restore old *error* handler
, G0 w( H0 x; D0 E4 w - (princ)
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- )
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
