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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0 @- a1 }7 }" {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：, o' y; F% _7 h' u% n/ S7 l5 H/ N" S
一、齿轮轮齿渐开渐开线1 W5 _8 h; P' c3 Y( [: P0 t& k
- P1 p9 v7 o% T2 r$ W, N- (defun c:gear(/)
2 ^" i7 @1 ?) j' G# w$ t4 l" Y - (4 k2 O' I* e' g$ w6 v7 c* X0 A6 W
- setq) I! s( h% v, z9 X
- p0 (getpoint"输入齿轮中心p0: ")" ]. T9 F% z5 `' X; a4 M
- m (getreal"输入齿轮模数M: ")/ t8 o/ J5 K, A& |
- z (getint"输入齿轮齿数Z: ")/ c( W1 R- X; Y5 Z% B
- ha 16 s: k2 ]0 j* H" U W# ]) F% m0 x
- c 0.25% H% ~; w& }9 P! A+ {, |& I
- a (/ pi 9)4 U6 \/ a" j; s, [" x& |3 S7 O0 n
- ra(/ (* (+ z (+ ha ha)) m) 2), Y4 c4 g4 V3 @$ c& Q
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
5 E# k3 {3 ~' w/ Y+ ^ - r(/ ( * m z) 2)
1 I5 p8 s! j4 P& H& p - rb ( * r (cos a))
' w5 H: Z. Z& { - ri rb: d& m+ y2 i p) O) h
- ang 0
7 {0 b6 Y% C; L- a - g (polar p0 ang rb)
8 l. W0 f1 V: W- F ~( l# a - )
! ~8 @; x1 A: b1 ^# G5 M1 O C5 \ - (command "circle" p0 ra); p8 H5 Q, }- j, [: o, u3 h7 K
- (command "circle" p0 rf)- s5 \* D& N) d: r( O3 {3 k9 U4 s
- (command "circle" p0 r)
* c4 G: `; k3 e3 R' s' C1 h - (command "line" g)/ H, E9 x k4 w. {$ h e
- ! N8 V( f5 q5 c& z2 T
- (while (< ri ra)4 u( V) X. h. g2 A# t
- (setq; r! [7 Z1 [) Z5 T$ z
- ang ( + ang(/ pi 360))
5 p4 `% m) e& u7 s8 o - ri ( / rb (cos ang))
2 o% o& X) B, T# l! } - cta ( - (/ (sin ang) (cos ang)) ang)' v; L9 q) f3 Q8 \9 x
- g(polar p0 cta ri). z6 f; F$ B. J6 x3 M# a$ v v
- )
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# q ~' |1 Q$ Y# L- (command g)
* {) k0 [, ~) b - )
8 `: e- h% l) e3 q1 F - (command )
) h' F7 |1 ~) R. ?% v1 c - )
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8 o7 w: W+ `2 f- m4 X
' W/ n8 ]; w& n' P% U- F5 l二、螺旋源程序4 v* |& m. g$ C( D+ k e
& m9 G2 s/ D! `; L4 C- (defun errMsg (s)5 c& H/ i |) y# t
- (if (/= s "function cancelled") (princ (strcat ". p; c0 H2 E8 ` I' f {
- Error: " s)))% f) b- n$ w: r& m8 F
- ; 当命令执行时出现错误' L$ ~9 ^" T# q6 {
- (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C9 E2 j" F4 K; h0 [ O3 ] J
- (setvar "osmode" osmold)
4 s" P- h: @) H - (setq *error* olderr) ; 恢复旧的错误处理
9 {6 J& q6 F6 e- ]5 U( c - (princ)" ]/ x& |, j5 {; G4 y
- )" w* k: R! H& z2 e
- " ]9 [; n% o8 p7 F, I
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle ' ?% E& q- W5 B! v3 a$ w, t
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
7 t' `3 S3 Z8 s+ s, i1 d7 G0 G, c6 ^ - ;-------------------------------------------------------------------
5 p9 C/ x9 t5 t - ; 获取公制外径大小、螺距总长
9 j4 m; x2 p, ^ - ; 然后计算一系列几何点: B8 C3 T9 G- e" _3 L+ }) b' e
- ; 并且关闭对象捕捉、命令回显
& a' L5 c# [- _ - ;-------------------------------------------------------------------
1 l4 a9 b, O e - (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)) 5 ]! Y! \& p; l9 V) `) 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))
- G* m' q5 K0 _0 P$ `0 t - (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))
' a- z. T/ ]+ B3 J: Y' o) T - (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))
6 ~- O' {7 E0 Q. x+ P# X 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)) - t% g/ F, Y+ h- ?
- ! a4 G8 Z& v: I' A. [
- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
$ |. k) H* C0 ?0 V; \" C, @' @ - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值/ B! c, B( ?6 g" Q" E e
- (setvar "osmode" 0) ; 关闭对象捕捉 / C- o& V9 K2 T" m3 c
- (setvar "cmdecho" 0) ; 关闭命令的回显$ [+ F: E+ q- l2 K; d6 a
- : B+ K. `7 n: V
- (setq innerdiafactor 1.5) ; 设置内径系数
, J7 Z/ z: i' v" r5 N& a) K - (initget 7) ; radmid 必须非零、非空、非负
) W/ H2 X" k6 ^6 U8 ^9 N* H9 S* l" J& y/ l - (setq radmid (getdist "
0 L4 ~6 E9 l. l9 E - 公制外径: "))
a) h$ r n) a/ q4 I8 @ - (initget 7) ; threadpitch 必须非零、非空、非负/ m7 X( { Q/ W8 P5 J$ h- }
- (setq threadpitch (getreal "
" G( B i8 x& `5 u* j M+ s7 t/ J - 螺距: "))
! K# ~8 r, R5 y+ S: S - (initget 1) ; ptStart 必须非空0 B* y) q4 i; L. S7 v6 Y' w; s
- (setq ptStart (getpoint "9 P* M0 }5 j; X. E/ d/ k
- 起始点: "))6 Q G) D" Z/ {4 d
- (initget 3) ; threadlength 必须非零、非空、非负( v5 E G0 I' H( B
- (setq threadlength (getdist "* Y' I% v7 J& B7 r" D; D
- 螺纹总长(Y方向): "))
6 L; c3 O3 s$ y) L7 `3 V
8 J7 x3 w* [9 L. T" R- W1 T- ; 对公制外径添加公差
( k6 C" v) ~! W! \, S) q1 I0 m - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置* K. y6 Y% H# N0 z4 u7 q! t
- (if (<= radmid 6) (setq order 1). e% A% _) J- [% W
- (if (<= radmid 10) (setq order 2)1 w. X. E+ q4 @ W0 |
- (if (<= radmid 18) (setq order 3)1 d$ j( G) d+ H. I0 z
- (if (<= radmid 30) (setq order 4)* B" g0 y! t' s0 T i8 C( F) A1 }/ i
- (if (<= radmid 50) (setq order 5) c% b0 G+ H! H( M
- (if (<= radmid 80) (setq order 6)# j6 m8 K- Q, N# I. H6 \
- (if (<= radmid 120) (setq order 7)
5 Y, L$ }) ]5 L1 R! q - (if (<= radmid 180) (setq order 8)* p( }# l1 b: g9 E
- (if (<= radmid 250) (setq order 9)
1 z# J" f% Y% W6 o - (if (<= radmid 315) (setq order 10)
; H# P) I. M% B+ o" V5 ~- p. r$ n - (if (<= radmid 400) (setq order 11)
9 h" L t3 ?9 f# F6 ~* P f - (if (<= radmid 500) (setq order 12)
+ @3 D( k( u4 I& [1 ~0 U; Q7 N - ))))))))))))) a, @ q$ \: @0 }% j. N
- 8 @( T# M7 O$ m4 e. j' N/ _( V
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
9 V8 \( I1 J$ X7 Y/ R- T, ` Q: D - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
) n4 X$ n$ a* k/ B; G: b - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
. R% ]$ ~/ z+ @ - )))
6 ]* t; W% A5 L3 Z -
1 S8 o& i. e8 S0 r/ v" z& G - (setq h (* 0.866025 threadpitch)) ; 计算齿高$ B6 X3 v. ^9 Y7 Z& V4 P9 n
- (setq radouter (+ radmid (/ h 4))) ; 计算外径/ N1 X9 U7 v2 b$ `
- (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径
* S+ _' {) O B0 w7 @+ R - (setq threadangle (+ 30 0)) ; 计算齿顶角
8 _8 P* h' i8 G6 K, w% E/ D- \2 g
8 j. ?( p! }6 H. g( Y4 o, r- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数
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- (princ "4 S0 L) l0 w: v% C4 b: `
- 三维螺纹创建完成"); w# h, Q7 R0 y
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
2 t# B( i2 E, x0 G: m - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值 ?$ m' @2 R8 e: e( m
- (princ)
X2 Q. B! G h4 b - )
* u( {5 t* j# c& b0 F - ! O4 m4 Y* e) V$ ~
- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
& K2 h( v1 y9 e, d - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
' G, h. |# W) h1 w1 J* K9 i3 r H
s3 r% y8 y( g4 U. |% v. S/ D- ;(command "undo" "begin") ; 开始undo步骤
# w7 C8 q3 A4 q0 m" _- R, Y
( ~. l% s8 T( Q9 w5 T$ T I- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3): f6 w) E' \% v$ }9 j
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))' j- v2 U# m$ v. F2 C3 z! y
- pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))% X: C. ?7 M8 E7 l, z
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)3 S- b# y" I/ B$ B! W, v1 B
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))1 }% R* u# G% k! y2 e2 ~
- ang (angle pttmp1 pttmp3)
- R0 K, v& C4 @ - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)4 c9 Y& j9 N- t4 Y) k
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))5 R+ S: B/ X% v+ m/ a0 h. b0 l, c8 F
- pt3a (polar pt1a ang radouter)9 o: ~2 l8 F; k
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)9 Y- v- ^; ~. v- m5 F( \
- pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))8 C4 F6 ?" Q' K z0 a
- pt3b (polar pt1b ang radouter)) T0 L2 P. Z7 W3 B+ X# d
- pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
^& V3 `/ g6 A) L7 m2 a% q1 S - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)/ D1 f1 e5 H2 G! {+ [
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
, B, H! r }& i* G* z( A4 L) b - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
1 R/ l$ l! q) X! ~7 k$ C - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)8 _4 w' f* g+ }+ j
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
! ?% o3 e4 C& t8 ~6 i- d" X4 ] - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
* b ^2 \1 D! b+ L - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
4 u- s- ?7 v( P$ W$ j - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))' T8 m( S8 k! Q( u
- )
% \5 Q, P# ]+ w6 I; I( v - 1 `0 ^- ?( ~1 ?) [5 ]
- ;-------------------------------------------------------------------
0 e. n9 t/ S7 Q- v' k6 F: U2 Q - ; 绘制两个倒置的并偏移1/2螺距的圆锥 q9 L. r- M+ l, a! ?
- ; 这两个圆锥都以中剖面剖分: h& ?9 K3 _2 q2 o3 h* j% ~4 p! ^
- ; 进行并集运算0 h v( y! f/ u# H
- ;-------------------------------------------------------------------
) \2 ?3 V4 ~4 L2 I9 A - ) T/ L5 m6 O5 U4 y
- (SETQ startcone "order"). X) S7 L9 x. }7 a& F
- (SETQ endcone "Y")
Q+ d; w9 W! K m# ~' Q9 E - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)/ ~! ?, V4 n, g5 V. t) _5 I& p" H
- N+ I! C9 ^2 F" O- (princ ": D# a; A/ i' @) m$ e% j; w
- 正在绘制三维螺纹，请等待")
1 H7 o, t6 s0 ~. G) E% q% O4 y, M r - (command "pline" pttmp1 pttmp5 pttmp6 "c")
3 P% d% m2 @2 N% Z7 V% v) y1 e) H - (command "revolve" "l" "" pttmp5 pttmp6 "")3 F3 t$ Y0 V3 E& |& o2 B
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)2 M8 F( u8 ]2 t" d) z" a
- (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
' c; {! Y- ]6 d( o - (setq tstmp (ssadd (entlast)))
7 |/ n/ A4 i/ l6 @( o - (command "pline" pttmp3 pttmp9 pttmp10 "c")
, c# ^! L4 K# e; s - (command "revolve" "l" "" pttmp9 pttmp10 "")
: l! d2 U$ e0 t - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
1 ^$ e( |+ ]1 R4 Z - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
1 i0 t5 \. H; g - (setq tstmp (ssadd (entlast) tstmp)) h1 u" h- x$ F" G. N, `
- (command "union" tstmp "")# j4 x$ [# Y/ B2 i4 A8 Z g
: Z- p: r5 q) \$ e- ;-------------------------------------------------------------------
% M1 w3 p- A9 M& m& B - ; 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! J( ^; H- M. F0 z. V
- ; 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
! ]4 _9 U9 G0 e, A. ~ - ; 在最后一步被切除# A1 W( g8 t I1 @7 F) ?. e
- ;-------------------------------------------------------------------
+ A: I+ F; X0 t b; `) q* | - I" h5 k1 z% D6 A
- (command "slice" tstmp "" "xy" ptStart "b")9 K: s8 M* t4 N O7 G- F7 v8 B8 v
- (setq tstmp (ssadd (entlast) tstmp))8 O% n9 B L: R9 L* F
- (command "mirror" "l" "" pttmp1 "@10<0" "y")
1 C9 P6 A+ G+ q+ m0 n7 N# D - (command "union" tstmp "")9 Y' ^: Y3 Z4 r! K+ w6 h: f" h
- 8 b7 O( e/ i$ d6 |% E" z; q: U
- ;-------------------------------------------------------------------" ?, }0 B3 v& \; d8 N6 r0 v
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）
) X7 w$ ]5 s/ o7 H& V - ; 得到的实体再切除到指定的螺旋高度" _' g7 g. _ q6 E- x; F
- ;-------------------------------------------------------------------( C* ?/ T2 V7 f) j8 L
- : A+ `% o- v% X( q. q
- (setq e (entlast))
/ O( i5 R# B" m) A- v$ Z+ E& d( @ - (command "array" tstmp "" "r" ttal 1 threadpitch)
( r w: n) A9 s$ Z9 y - (repeat (1- ttal)$ f7 J0 ?9 _( X+ h3 @1 f
- (setq e (entnext e)9 S& |- Q% C b
- tstmp (ssadd e tstmp)2 ^; n( j$ A" @; l) j2 [
- ). A6 ]# t* n3 h
- )+ x; k9 @% I+ u
- (command "union" tstmp "")
& K3 `1 w0 [. F. Z; g" z - 6 Y" r! R. h q4 u0 G0 N' o
- ; 若开始创建45度的圆锥
4 U8 f3 ^8 |9 R2 g - (if (/= startcone "order")
1 Z- D3 E5 O: q3 v" y, _ - (progn (setq e (entlast))
W" K' {" V2 Q - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))# Y2 T7 S& E' J) [: c% q% C6 @
- (command "union" "l" e ""), }' r# C K3 r: `5 f8 w& j0 j# s# H
- )
2 ~6 B( }- e: |3 c* t - )- ^( f' z* h8 o7 i# I) N
- ) G/ ? k; v8 F0 l
- (command "slice" "l" "" "zx" pttmp11 pttmp12)
. X( c9 T4 X! _' E& g6 Z# h - (command "slice" "l" "" "zx" pttmp12 pttmp11)5 n/ p( W$ v5 `# x1 Q
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) 4 p( v. V) l* q9 ^5 N5 ^
' Y! Y: J6 S4 l& U" b7 k- ; 创建最小直径的圆柱体，然后与螺旋作交集+ b& v) M0 U+ C7 _5 F6 a' f+ ~
- (setq e (entlast))
4 _$ [/ s" Q4 { - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
4 M+ r F$ g. S9 ^0 e4 i/ ]" \ - (command "union" "l" e "")
, Y2 e: p& Q# J3 h - (setq tstmp (entlast))8 C0 M4 l/ h6 |9 O9 F
- / X4 \$ g x3 _! t) v
- ; 创建中空的圆柱体% R( b4 V) M* d; ]
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia9 j# |- Y1 z; y) J' J, e4 K
- (setq e (entlast))
2 {9 C% N3 O6 p$ W
7 B$ f9 G" o+ _" n/ B- ; 若最后创建45度的圆锥
( M6 W x" `1 n- S, F- h - (if (/= endcone "order")/ y9 `' e$ t: J; F- n
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) Y8 |, N2 v& r. ]7 Y9 W
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) 1 U7 i/ [& a- q, Q7 x0 ]
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
9 _+ z, p; ?6 o" o0 i - (command "union" "l" e "") 7 S g, M1 k! n: O
- (setq e (entlast))8 @/ L" B9 o9 t2 w7 E+ j8 M
- )' C; W7 h* }1 e8 H& A
- )" Z( q* F0 r, d! P* o" \% c
- ) \! a8 I3 v+ ]+ I" w2 G
- ; 从大圆柱中减去小直径圆柱
; }: E. v& h" ~2 ^; U- D" p' T; X - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))8 }- e1 _5 z5 C2 J/ b* O% v* {, I
- (command "subtract" "l" "" e "")$ h8 _% E1 J, T2 N( I7 Y! _/ Z
- (setq e (entlast))+ J1 D$ m2 L+ R
. H+ |; D" w6 I: W% m0 J# Z5 Q- H- ; 从螺旋中减去圆柱
" I8 W9 L" h1 g4 Z - (command "subtract" tstmp "" e ""); j6 ^: h5 v c8 p% y
- / _! I) Z4 d( x
- ; 如果螺旋长度为负然后镜像' M P. b- t. n; r
- (setq e (entlast)); E' X. ?. o/ ] g- C5 S
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
+ E! h7 A! K( i) v8 T& k
+ ~7 i# N4 D, B3 T4 M* f, }+ S- (command "zoom" "p")
0 @8 l- Z6 F+ x4 x& U) f+ o+ ] - ; (command "undo" "end") ; 结束undo步骤
& Z# O, C9 V0 r, O! Q6 f6 k) Y7 C( o - )
O* p( w Q ]! G
+ `8 h& {' D) w9 @, [- ;;;---------------------------------------------------------------------------------------------------------------------;
- t, \0 b! w7 q9 }# p$ l - (arxload "geom3d" nil). ]5 N0 s1 {' t- R$ B8 [
- (princ "+ Y! ~6 U4 z5 h7 `0 {3 w
- 3DThread 已加载。 ")2 l& R4 O! X9 Z1 j5 I/ x) w n: \4 K
- (princ)& R9 J: ^) [) r; a1 C% I
% W% {3 [; D/ @
) D \9 ^8 h, ~
- j9 e# V5 t8 j' t三、弹簧源程序
/ K; u0 G" B2 H( C7 l- (defun errMsg (s) ; 当命令执行时出现错误
7 g* D- k+ m3 i9 X- Q* C) R - ; 例如用户按下了CTRL + C- m W2 o: q3 w+ B8 y
- (if (/= s "Function cancelled")
2 m& U) F9 c0 k8 r4 j - (princ (strcat "
8 `0 G) _$ r1 `* C - Error: " s))* I/ h! q7 s2 s; `: L: X
- )+ F* d1 q6 J* \2 U( b9 T& _
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值" C# J$ Z2 ]8 H" I9 C. M4 H
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
- h, W/ [# N L - (setq *error* olderror) ; 恢复旧的错误处理
) X8 Q5 r& x# O5 J0 f$ }3 u - (princ)
" E% i7 e/ n! i# t" D$ z! A% Z- O8 E. I - )
2 A" O7 n3 M, v6 T! A - + p% h7 z! e4 D$ W9 Q8 w5 G
- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
A4 g* P" M- X1 u) F% r! b& I9 |2 u - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv) ?! ~* r, t" w1 J" J T0 [8 g
; }1 K4 }. R+ H1 t- (setvar "blipmode" 0) ; 关闭 blipmode
* M* k1 t+ E- H2 J9 L - (setvar "cmdecho" 0) ; 关闭 cmdecho
% f- a2 e& c+ M5 y - (setq Pi2 (* 3.14159265 2))
+ @+ h1 d6 m; X* T! U, D - (setq aGrw (/ Pi2 lr)): z7 r4 C# v9 a) K* f5 R9 S% X
- (setq dhGrw (/ bhfac lr))3 B7 ?7 p3 G1 a7 j5 u, z; E8 S
- (if bvfac (setq dvGrw (/ bvfac lr)))
& N' H7 r4 V# q5 g- U$ L - (setq angle 0.0): G) e! r# D, `$ ~( N2 N
- (if bvfac8 i( t& b( m' X5 I7 z4 z
- (setq distnc strad dv 0.0)
4 F! `2 X$ o* z4 d- _8 d - (setq distnc 0.0)% A* {" n6 P% C
- )
3 w# o8 [! u+ v& e - (if bvfac
7 i) H6 I5 G) S- S$ p$ ~6 X - (command "3dpoly") ; 开始绘制弹簧: L. ^; s0 k3 Z6 M
- (command "pline" cntPoint) ; 从基点开始绘制弹簧8 c- N, _4 U0 C
- ). R) N$ z) G @: ~3 D
- (repeat nRepeat / o# z4 z ^5 X1 t/ C
- (repeat lr ) x. g& B: Q: W+ _: U& J K7 c6 a5 L
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))6 v' ?" U2 N7 M; [! m7 }- o
- (setq distnc (+ distnc dhGrw))7 B. O/ j1 H' w: D( o+ J; X
- )
& s/ o+ S* z, P# V% i' H* w - )( m4 b* Z# o" s% ?0 y6 {
- (if bvfac& e9 n; W6 X" i( V+ M" l* j
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
/ X& L1 I, }, E, @2 V - dv (+ dv dvGrw)
1 k# g9 e. p1 l( Z - )
' E+ o z; c H/ ^/ s- T. }; N - )
& d0 n- \# {4 K% a5 P9 D; H) F4 W - (command tp) ; 继续输入下一点' j5 }0 s* ]+ T& R2 S
- )+ N0 Y4 m5 d- R2 V6 t% Y
- ) 1 C, }" }& {4 s/ v& }* M& i6 q
- (command "") ; 输入结束: ^! O- M+ n# ^$ f: \% g
- (princ)/ c3 |: i$ M, z: N6 L$ r
- ) 0 r) ]; }# f) r9 r T" R: k- ?
& J4 t# X/ X$ r' t3 {- ;;;
2 h N& R( _0 K9 u - ;;; 生成三维弹簧函数调用接口
1 ?4 e* ?" w; j3 B" K - ;;;
?/ ]) X; q# Q3 _: r S2 A
5 V; q0 ?3 Q% }" }- P% z2 f- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
6 J5 T( Q, ]9 V - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复# j$ a: H8 P( c: P# a& \* z
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
; o+ q: D7 A) e - (setvar "cmdecho" 0) ; 关闭 cmdecho
' X! G- U# ?8 M# U7 R - (initget 1) ; cntPt 必须非空
- Y9 m4 k# X; I6 H - (setq cntPt (getpoint "4 g" S# u/ u) R4 o: }$ s0 N3 b
- 请输入底部中心点: ")): Q K: ?& ]8 q% ~" ~
- (initget 7) ; RottCnt 必须非零、非空,不可忽略
; H4 L) U2 [, f+ v - (setq RottCnt (getint "* h2 ]# ]$ i4 A
- 旋转的圈数: "))9 o' B3 o) k8 \5 n% t$ l
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略 r9 O9 {% q8 W3 U4 I( X
- (setq bgnRdtn (getdist cntPt "
3 F6 |* L& H% ? - 起始半径: "))
) M N! i, k! [; `# t% x - (initget 1) ; cf 必须非零、非空4 \" C5 @& u A& k, M
- (setq horiGrw (getdist "' e7 T0 }0 t% O: J/ U
- 每一圈的水平增长距离: "))% v7 ~" X; F9 [ K i
- (initget 3) ; cf 必须非零、非空
- f. A3 o) i# |3 E2 v5 l0 ~ - (setq vertGrw (getdist "
v5 _& n( y0 J - 每一圈的垂直增长距离: "))7 E' J# I! K" K& a. x2 d
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略# M0 {- e$ q6 } E2 j* u) @
- (setq ptCntPerCircle (getint ". K7 X) O! S1 ]+ K
- 每一圈的插值点数<35>: "))+ c. L4 q+ t- ~8 l+ _1 ]: ]8 F% N: |2 p7 t
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
; ^0 q* @% H: ~8 ^% H9 C - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
9 f* ~$ `7 M9 s( E' j; s - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
8 h5 `+ G' i+ a" { - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值! o Y9 n1 z8 z- v0 Y y: C
- (setq *error* olderror) ; Restore old *error* handler
/ t; v$ ?- h" L- o' D) m4 z2 W) y - (princ)
4 K# S7 [+ Z' q
$ W- L" r/ E" P! c) q# v- )
3 y$ n9 m- J; u) \( B
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
