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5 K0 Y' ?+ b. s1 d/ v
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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：) k3 Y# n% d: P8 l
一、齿轮轮齿渐开渐开线4 Y, y. q/ U+ T, x3 D3 I" U/ x% X
: n- a/ u$ t. h$ c* r& G. p8 q- C- (defun c:gear(/)( l$ v6 C( B( U% e c
- (
% \2 U6 m) }; A/ y7 S8 T - setq) Y$ h* W. j) N9 t. t) _. Z
- p0 (getpoint"输入齿轮中心p0: ")
G1 Q) }4 Z) J' b K ?0 E2 R# k - m (getreal"输入齿轮模数M: ")9 J; J: h& h, j/ l8 Q
- z (getint"输入齿轮齿数Z: ")
; Q0 T5 e+ m; w, j, Z4 m - ha 1
$ {; W' o/ Z$ c% I* F) [! Z3 `" v - c 0.25* y- M& q( i9 W4 I
- a (/ pi 9)
1 q% Y' O2 m) S- d - ra(/ (* (+ z (+ ha ha)) m) 2)
( z# ~" r0 ~; n5 T - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
; s- ^* l7 S1 G' Q# C - r(/ ( * m z) 2)
2 K; @; C- N: B& r( T6 f$ W" k) H - rb ( * r (cos a))
% s3 f9 Q4 \: h1 o0 u) k - ri rb* H$ M c+ S9 O" A v. H
- ang 07 n8 k' L& ]9 [2 r" Q" {: `5 A
- g (polar p0 ang rb) ~. P4 f1 N9 n' U' E+ h) J1 t
- )
( \1 w6 q; u" m3 ]% Q4 s$ ]$ R - (command "circle" p0 ra)) u: G& y) J3 S3 E# m7 ~
- (command "circle" p0 rf)" w. `6 l% I0 E& M* C* F
- (command "circle" p0 r)2 @) M- k, f1 C& d( U! n) _
- (command "line" g)6 G g, m3 p. p4 N9 [' t) l
- & R; l8 b* z1 p$ i
- (while (< ri ra)8 p1 C2 V/ D" G
- (setq' q& U( e9 ?& r$ y& P
- ang ( + ang(/ pi 360))" f5 ^9 F# l2 v2 C, J
- ri ( / rb (cos ang))
7 Z) a! P, V; F - cta ( - (/ (sin ang) (cos ang)) ang)
) s/ F3 k) F& a" ]+ d0 W - g(polar p0 cta ri)2 Q. T3 }5 A* ^( ^6 v2 q6 _
- )
" X4 ]6 [- _5 h1 s' Y$ X5 g! I
/ _4 S3 e/ |: Q- (command g)2 h: ]5 S0 [' O. P& M
- )8 S- Z1 W/ L# i/ {2 K2 \. X
- (command )
/ W1 _& H% i. {8 H; c W - )+ M! c- s4 ]# V3 `" P
( U# R' U# v: N, O" V2 y3 r# O0 h, f% ` T8 Y) s
4 |0 }# X& I6 }6 E4 c c# |二、螺旋源程序: H3 y4 |9 k! e
+ \( s \. Z# n( C3 S
- (defun errMsg (s)& D y( Q/ l( k
- (if (/= s "function cancelled") (princ (strcat "
, S! l/ V6 s* v: `. O' m% w/ U {) B% o u - Error: " s)))
7 [# U+ [( L) B- B1 E0 l - ; 当命令执行时出现错误
1 t8 v# Q8 I6 [ g' U+ L& x6 |' Q - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C5 w* I0 W, Q9 x( y
- (setvar "osmode" osmold): X/ ], T: K. J" e8 J8 Y
- (setq *error* olderr) ; 恢复旧的错误处理' p) b F, G3 M" X8 a
- (princ)' f& J. @" o! v R5 a
- )
: W4 \) m2 @0 K - 7 X+ F) f# i8 `* S
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle , O2 G9 v/ v, l+ W6 N) F
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
4 s8 f- y# A; Y+ X- | - ;-------------------------------------------------------------------
5 Q) G1 w0 l; e% x. M$ u - ; 获取公制外径大小、螺距总长" i2 h$ I* D. ^8 ~
- ; 然后计算一系列几何点$ b {7 k- D& X, c1 W
- ; 并且关闭对象捕捉、命令回显
9 a& q. k$ N$ A/ A6 D - ;-------------------------------------------------------------------# }# v7 V5 {9 u; W+ H. Y2 ~5 G' V3 R: h
- (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)) 4 G1 S& k6 J& n9 B8 R$ B S, |" f
- (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))
0 s$ Y. k! b# _4 ^ {( x( ] - (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))
1 m6 [; }* _+ S: u A- U - (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)) 1 x2 \9 u- d0 f5 Q: a3 q: [9 `4 ~1 l; h
- (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)) : Z$ E n. d$ t, L# U. Y. i
# G- h: Q* R6 M0 n7 |6 T- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值) ?' f2 t$ P/ C, z% R
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值# E5 a) ]$ F. p9 _7 `8 V4 _& N
- (setvar "osmode" 0) ; 关闭对象捕捉
4 ~4 b/ A3 | z+ g# y" \ - (setvar "cmdecho" 0) ; 关闭命令的回显- n T$ R$ _) r
5 Y3 g: P( T' ^4 W- (setq innerdiafactor 1.5) ; 设置内径系数
* H' m" t7 K8 J- C) {: w - (initget 7) ; radmid 必须非零、非空、非负9 o+ @3 s0 q; K' L* A
- (setq radmid (getdist "
) r, j. l. [! q' G' k7 T3 Q- l - 公制外径: "))1 |) _' N& L1 ?$ T5 P, R
- (initget 7) ; threadpitch 必须非零、非空、非负, o& O3 R4 L1 R" S7 U& J
- (setq threadpitch (getreal "
) q4 r1 f6 r- g9 {: ~( y( I - 螺距: "))
. C" z& ^! X m; I: ~! ] - (initget 1) ; ptStart 必须非空
# j& S5 {5 v1 ?; o4 g9 d S - (setq ptStart (getpoint "( S ?" Z. T& H6 N8 V) K
- 起始点: "))
% \( u E$ |5 E - (initget 3) ; threadlength 必须非零、非空、非负# K( D7 Y' a x- ]! {# D
- (setq threadlength (getdist "$ ?7 _/ r+ T" D9 D, J
- 螺纹总长(Y方向): "))
. Y1 y2 E% Y1 ^) V - / j5 s* A/ A; H0 u& l$ K
- ; 对公制外径添加公差
8 @3 d5 A9 p, g% s0 R0 f - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置, Z* m0 `: |5 V: Q/ K
- (if (<= radmid 6) (setq order 1)& M6 d8 y3 Q y s
- (if (<= radmid 10) (setq order 2)2 |# R% h3 Y) V5 P- w+ K% A
- (if (<= radmid 18) (setq order 3)
4 N3 `, y1 \# V. @ - (if (<= radmid 30) (setq order 4)
* C" u; @+ Z' y: ]" N9 | - (if (<= radmid 50) (setq order 5)( X4 W z6 x, I. `& B% }
- (if (<= radmid 80) (setq order 6)4 x) S ]7 r1 ]- X) Q0 a
- (if (<= radmid 120) (setq order 7)- I1 Y p0 ~! q$ M- {8 p* d! F6 B
- (if (<= radmid 180) (setq order 8)
' i2 s1 Z1 z& R" } - (if (<= radmid 250) (setq order 9); I& {4 T# ~) c3 }) c( }) q
- (if (<= radmid 315) (setq order 10)
$ y- _3 |; J: `9 E - (if (<= radmid 400) (setq order 11)
. Y- N! q) {% v0 r) R - (if (<= radmid 500) (setq order 12)4 J% q: }$ n9 m1 x: g& ~6 s* H2 m
- )))))))))))))
2 k$ g' |1 `# f% Z - ! r& F9 V4 x' U c3 k' v8 v
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
! a5 @) B) _* D+ T - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
! V5 @: I) o& V& x: q' a - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))6 y$ b4 k% B# P& ~
- )))7 s0 J: ]. P/ O
- $ f3 G4 o$ O% P
- (setq h (* 0.866025 threadpitch)) ; 计算齿高
, X' X2 I# X8 A/ a - (setq radouter (+ radmid (/ h 4))) ; 计算外径
. K" |* O/ x! d - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径. p: }( [7 L* z3 u
- (setq threadangle (+ 30 0)) ; 计算齿顶角" u% |1 y' g9 R" l) e
* a# a7 _; }; Q+ f- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数. W2 L# _% }5 u
- + y$ E- e" d. ?( y, K
- (princ "
4 c5 ]- F0 m) y1 @6 w - 三维螺纹创建完成")
9 A1 [; H& a: `" t - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
0 F* S2 C$ S8 k- I - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
4 [$ r9 @1 D$ d' o - (princ)# r6 g3 w; ]! I, a2 w+ [# H+ h
- ) _2 H( {8 s: ^1 B0 A
- 5 @" b8 X4 z2 P3 L0 g
- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
8 x( j! I4 o# Q0 y6 F) R - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
% Y0 c `! Y: I) F1 u - ' p% E( }/ C4 a& |
- ;(command "undo" "begin") ; 开始undo步骤
' }, F( z; c) o0 x1 Y6 c - 8 I( t" s4 t) r; F0 |
- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)$ K4 y; x' l% s W& o) x
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
! m) b0 C2 f+ ~5 a0 E - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))! y6 `1 Z! U7 w3 p* Q( s
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
, a Z4 H. F. R( ~: t; u - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
# ~3 w; H" h0 }) I& Z - ang (angle pttmp1 pttmp3)
* S9 Q( b4 k0 n8 b - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
6 N3 u) g9 i3 E9 ]# l2 | - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
0 Y2 s4 y. R- R& y' {% K - pt3a (polar pt1a ang radouter)
, p @! z8 C% d7 W! q - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
" z/ V2 E* s2 n6 ]# l- W4 v - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))5 y9 p# { [9 y: P2 Q5 V, S6 L
- pt3b (polar pt1b ang radouter)
- L+ a" U' r0 e* T! X: {. O' S, ] - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)2 {9 S1 a: |* Z ?2 \; i6 X, q
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
; x; ]( X1 u g" Y1 O7 J0 X7 C - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))- o, x( \0 f# r5 V! @# ]
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)% ]2 L4 D/ n, a& g
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
- X7 A @5 t% O$ w& y# A4 O - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
' f: W7 t( v9 O: U s - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
: t( v" D7 R7 \! T1 X# ? - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
. n( H& y% R( g6 ~ - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
" V5 E5 T; |1 `0 s5 p - )
4 Q6 m7 [6 ]$ s8 F - . T9 C+ O6 q8 R% S2 r6 \0 P# t
- ;-------------------------------------------------------------------# e2 i6 K7 ]- ?1 r) K* i/ A
- ; 绘制两个倒置的并偏移1/2螺距的圆锥3 M6 R; h- U: {0 ^3 s" E* J) x+ J0 D" A
- ; 这两个圆锥都以中剖面剖分
; R% W* k6 N0 T# v$ D, z - ; 进行并集运算
" Y; Y6 m% a. R - ;-------------------------------------------------------------------
( a0 W; Y9 E& V: x& Y8 y2 \7 _) c
* q0 w' p/ H4 h- (SETQ startcone "order")
* M/ F. ]% }; L - (SETQ endcone "Y")2 z2 I$ {2 C. s1 F
- (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)
" Y% Q% Z' V* s$ N$ {% L% o
6 A) ?* `; n3 n1 |" Q6 j; ]. v- (princ "
% h1 A0 U( w: C- z* \; O+ Z - 正在绘制三维螺纹，请等待")2 A1 @, ?" o2 s& g3 l1 g
- (command "pline" pttmp1 pttmp5 pttmp6 "c")
5 n. y$ m, O) A* h. D - (command "revolve" "l" "" pttmp5 pttmp6 "")
: V/ _+ f6 x+ z* N: D9 ^8 O - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
8 Z4 q$ \/ g, o% T1 U - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)
' L5 i3 n& T% x$ i M: t - (setq tstmp (ssadd (entlast)))
$ J2 {. p$ ]7 q - (command "pline" pttmp3 pttmp9 pttmp10 "c") Q# k/ a" F+ D
- (command "revolve" "l" "" pttmp9 pttmp10 "")3 M0 }9 \; b* g: y# k$ \7 \4 S4 J
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
' [8 \4 V9 x0 r- E7 R2 @ - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)& Z; g7 [' T5 s% u4 L. q9 ~
- (setq tstmp (ssadd (entlast) tstmp))
. ]- Z6 r, P! D) C3 _ - (command "union" tstmp "")
6 Z3 R+ ?: o9 c' e0 E6 U
_1 S: R& \, @. N, ^- ;-------------------------------------------------------------------
0 o( I! z: S1 v/ l# a+ N' `% D - ; 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; i: G1 F/ ^& ^7 Z- I9 }5 m
- ; 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: H# h! v) C2 v: W6 C9 E( x9 s
- ; 在最后一步被切除, O8 T6 T$ y9 O# z: ^+ |
- ;-------------------------------------------------------------------# E% }7 b1 M# d6 n0 F q1 A+ f
- ' i1 W; X0 T2 g) Q' z+ E! S
- (command "slice" tstmp "" "xy" ptStart "b")
1 _1 V4 T! J; \+ y* y - (setq tstmp (ssadd (entlast) tstmp))+ H5 R+ g( ^4 ]) j; z8 V
- (command "mirror" "l" "" pttmp1 "@10<0" "y")
6 O" o: A+ V. h - (command "union" tstmp "")3 X& a5 W8 K# r6 h
- 5 S& S* f+ F* r4 H: o
- ;-------------------------------------------------------------------6 j( B" y& y* u0 [# G5 B
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）( }& c; n6 K9 M0 w3 d$ j1 |# \
- ; 得到的实体再切除到指定的螺旋高度
4 y# w- D# `9 u, a# W6 C, i - ;-------------------------------------------------------------------! m) C6 g3 l: q* f
3 A- |2 {; \& ^* m- (setq e (entlast))
% J p8 L# x0 N6 T - (command "array" tstmp "" "r" ttal 1 threadpitch)
$ D a7 j" ~$ F: n& D! a - (repeat (1- ttal)
0 h6 Q4 d9 i- G! z7 {. m - (setq e (entnext e)$ i$ h: V) i" g4 f+ f" C6 h( K
- tstmp (ssadd e tstmp)
9 |" w' h* Q* e1 F/ t. ]' i - )( a! A3 R5 a7 F! M5 k' Z1 z6 s/ q
- )$ C, g3 K" w, P7 I% W
- (command "union" tstmp "")
" F6 r) @2 U; i8 R) E
4 C+ s0 v7 R( u2 k* [9 \# A" G& k- ; 若开始创建45度的圆锥5 H$ |" ]' q8 ] y! c+ v! c+ E
- (if (/= startcone "order")
" G" I- i; p; r: Z) C3 ~/ F - (progn (setq e (entlast))
+ i4 m- x- n* z2 Y. ? - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
8 D/ {" K* @, _) n - (command "union" "l" e "")- ~( B! h i6 W7 Z- n3 \8 Z2 W5 c
- )& }( j8 _# U( O4 p# U* v
- ). j9 [ Q/ k+ m' W6 g
- , X! H9 W' t/ ]# Y+ X# f
- (command "slice" "l" "" "zx" pttmp11 pttmp12)
, d: N7 ]- S8 a# Q6 t: M - (command "slice" "l" "" "zx" pttmp12 pttmp11)
2 D3 E. O6 Z* l, z - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) ! M; |/ r# H( O, I
- Q( H0 m3 R# G, d9 t7 Q3 ]- ; 创建最小直径的圆柱体，然后与螺旋作交集- j2 x; A7 W7 r0 N
- (setq e (entlast))
0 U$ o$ x- \# a1 i - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
r4 i- H$ L/ B6 q& e - (command "union" "l" e "")
; c- O. | t3 P% K' ?% V - (setq tstmp (entlast))
6 a" m; x/ x3 C1 h# m: r! v [ - # S6 f0 ^7 ]6 A4 T* i
- ; 创建中空的圆柱体4 J2 c; R8 ]' `6 j( X
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
G) R( m, q$ [5 e0 S6 k Q - (setq e (entlast))
. ?6 d! F4 Y# J. L3 l% m8 G! n1 r& u
3 p0 p' B+ f; }7 i- ; 若最后创建45度的圆锥
4 a& O- v9 s" Z& U3 p5 a. Y - (if (/= endcone "order")
& f, f$ Y, i. A6 Y5 d- ^6 J3 P' M8 w - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) 2 \" z8 g& P& n5 u8 N
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
% i$ Q0 m* r u - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))& V$ ^- A+ z. S$ h! P5 S
- (command "union" "l" e "")
' u$ [4 a4 z9 R& p) Z2 W - (setq e (entlast)): Z; e# ?( p6 ^
- ). j9 |" x) {7 H. S; a
- )
. ? o; j3 O) Q8 v2 B! V. y% S
% @; h: s" ?" z0 U4 S1 t, L* L- ; 从大圆柱中减去小直径圆柱
. M/ `! z7 T8 v/ P# K6 B - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
7 T0 j0 D% [* ^$ G! L& ? - (command "subtract" "l" "" e "")0 e+ Y5 o4 g& I. W! T0 M
- (setq e (entlast))2 Q: ]0 Y) l" p2 S2 e
" Y' w9 @) i1 ~* K9 o8 J- ; 从螺旋中减去圆柱
7 g8 Q, A; s u( m* f8 b - (command "subtract" tstmp "" e "")6 W: R# T( I# t
# A$ a. O G9 J/ U: l- ; 如果螺旋长度为负然后镜像7 D& L6 i' p' r7 Q7 L% X
- (setq e (entlast))
8 O2 i: r5 H2 ? - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
2 ^1 o+ S( H( d! R( z
4 v B8 s" U: H; w% q- (command "zoom" "p")
) I) X) M+ z" k$ Z2 x - ; (command "undo" "end") ; 结束undo步骤
5 T' m0 i* ?" ~% N8 C5 J - )
& m# F2 d' {3 s' I8 C - : j/ v3 H3 v. `" H& x: @! n
- ;;;---------------------------------------------------------------------------------------------------------------------;
- O V( t* s; X8 p2 u - (arxload "geom3d" nil)
7 W! n! y7 J! W- U% h, o - (princ "
$ L, w% v1 f% W! g9 O2 }1 J: {9 M6 z - 3DThread 已加载。 ")
, W& Y1 I6 R s6 K4 u5 ?! X - (princ)
& w9 j9 ^* T' g9 l$ K
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三、弹簧源程序
: @$ ?& L# L/ Z) p- (defun errMsg (s) ; 当命令执行时出现错误
2 ?% r0 R! h# L8 k4 X' W - ; 例如用户按下了CTRL + C% X8 z; U) [' |! i
- (if (/= s "Function cancelled")
+ o# o. W, p+ k- I% ]! S6 D - (princ (strcat "
. W7 z/ L- n$ s) G' R1 \$ @ - Error: " s))
' M: l0 W3 J) ?0 V! H) k; d; {0 N - )( a" o. L: k9 l4 @- X) `+ o; \+ n0 P! b
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
8 g4 w2 ?! U# `: R& S - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值& i$ e! n7 D) ^, ^$ K$ h
- (setq *error* olderror) ; 恢复旧的错误处理3 m0 ~# U$ `) D F: E$ }
- (princ)
+ K K/ ~5 Q) n4 B* d - )" p& b4 h) S/ c# v* }: Y0 K( x
( v6 Z6 _7 u2 J4 `9 @- w- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
* K. y1 t4 M5 T/ A: ?9 P/ L - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)% c0 v% L8 F; Q; j$ e+ b, Y
! N2 w7 z T& u; |- (setvar "blipmode" 0) ; 关闭 blipmode 2 D2 x9 S% T j+ n F H5 Z
- (setvar "cmdecho" 0) ; 关闭 cmdecho
6 o9 Z3 w# q0 @% B: e, [ - (setq Pi2 (* 3.14159265 2))
. O, Q: S, t1 g* U' q0 J - (setq aGrw (/ Pi2 lr))
- ~0 t% C& B3 G; y) W' Z - (setq dhGrw (/ bhfac lr))
) V% o' u# w: O# `. @" L% O9 ] - (if bvfac (setq dvGrw (/ bvfac lr)))) T6 e, b" S1 Z, E8 W# Y# B) c
- (setq angle 0.0)- _( x# l( l( B1 C
- (if bvfac7 Z- {; N; z# Z# c) W
- (setq distnc strad dv 0.0)* v: w. }9 o1 P
- (setq distnc 0.0)
9 g+ z( h) ~) R8 C2 i4 z - ), a* ^/ U) p# C0 ~% r4 g; N
- (if bvfac
& Z2 Z8 ~; K" x- ]& u* c+ s& q5 H; g - (command "3dpoly") ; 开始绘制弹簧
E7 m0 C3 ?+ a - (command "pline" cntPoint) ; 从基点开始绘制弹簧( g- q5 l7 G6 v0 g
- )
( V+ f& q0 u2 D4 a - (repeat nRepeat
3 c' G3 M1 b( u I" H - (repeat lr ( [: ^# B6 T" m. j
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))
1 \. w1 a1 s, Z7 H% x - (setq distnc (+ distnc dhGrw))
. i; k& z, ^/ ~. U! C - )
( ^* r6 [( a6 n - )5 w% g2 L: K2 ]9 d2 e
- (if bvfac5 l+ w5 }6 `+ i
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
+ {0 L9 b* ^* v4 w. O/ t" y - dv (+ dv dvGrw)1 \3 U' b* U4 U3 {
- )
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/ y' n- H& I: o8 X E) l4 C+ ^ - (command tp) ; 继续输入下一点
; l6 q* X8 L9 W N - )
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5 `3 r/ i& w7 F! f - (command "") ; 输入结束0 Q9 n6 o& @5 f
- (princ)
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- ;;;
) W: f# W" @( [) v - ;;; 生成三维弹簧函数调用接口) L+ b- L% r5 j; ]% G9 C, A
- ;;;
& v% a8 G/ R' ]3 `% Y1 ~4 a/ c! T+ }
) A/ J/ c g- T1 e4 z9 I/ T- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) - n/ H& z6 X& M. W! q
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复$ N+ \. W6 v5 R2 h3 o
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
( ~8 g% C, ]6 ~( }/ d - (setvar "cmdecho" 0) ; 关闭 cmdecho 6 ]9 _, A- e! g9 H5 Q1 u N
- (initget 1) ; cntPt 必须非空
- n9 S3 s5 A- C; d - (setq cntPt (getpoint "
( h( A4 d0 T1 ^7 C, f2 u- [ - 请输入底部中心点: "))5 Y0 H2 F7 ~* m2 q4 h
- (initget 7) ; RottCnt 必须非零、非空,不可忽略9 {6 k3 t, F3 Y5 F2 |0 k
- (setq RottCnt (getint "
5 t, g) m4 i# t5 \+ c+ R% o, k1 C) T - 旋转的圈数: "))4 p1 j: N0 l7 ? p
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
- Y' j8 n: W3 p5 m( J - (setq bgnRdtn (getdist cntPt "
- p, m+ j8 I9 n* U - 起始半径: "))
+ c+ R$ ]$ w' ]7 U: K+ f- s - (initget 1) ; cf 必须非零、非空
1 M# S$ i& K: ^! k: U* Y - (setq horiGrw (getdist "2 N% P2 R& e1 y
- 每一圈的水平增长距离: "))' K; G! u# a( j
- (initget 3) ; cf 必须非零、非空
; t: g" F* f* | - (setq vertGrw (getdist "9 i! H( N+ o6 o" `* B( M" C* N
- 每一圈的垂直增长距离: "))
: a; q6 ^4 a: k { - (initget 6) ; ptCntPerCircle 必须非零、不可忽略) L* \$ p2 t5 Y' D. O9 F
- (setq ptCntPerCircle (getint "
' q: j1 B" N, Q* _; g2 j - 每一圈的插值点数<35>: "))6 F3 X- |$ `) i2 s' B3 B( u' V4 N
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
: M! N! L6 G) v - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)& ^. I0 z. C. X5 P1 q; X( c$ A3 Y- L# P
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
: `! b1 b8 Y, j7 r' z) i# } - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
+ v- y8 t: e( c/ |- b - (setq *error* olderror) ; Restore old *error* handler+ b5 [. z- M) M, r7 c" a. c
- (princ); h! i# `* `/ N1 I* V5 j. k. l1 |
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
