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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( z: ~1 N7 L' b/ {8 a% d% t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：' Y' g4 p- P. h
一、齿轮轮齿渐开渐开线$ H7 ~0 s2 E8 X
- 1 `; q9 W0 A& u V( m
- (defun c:gear(/)
$ T' p6 u- H+ A$ d: w' R2 Y - (
9 V1 J$ }' x6 N7 x- J - setq
5 Q6 [9 ?# f5 C" X" ?; n( ^( F - p0 (getpoint"输入齿轮中心p0: ")
2 N# I% X* S* n% |$ j! n( k - m (getreal"输入齿轮模数M: ")
" x/ M% g7 _5 N( ]4 b - z (getint"输入齿轮齿数Z: "): ]& R/ U* v' l$ Z
- ha 16 l, S4 @: q- Y2 y7 d
- c 0.254 \' m/ e8 q' \7 ~
- a (/ pi 9)" D4 ?/ `& ~6 Z/ M$ X
- ra(/ (* (+ z (+ ha ha)) m) 2)
7 h* W0 A. I7 {$ P R - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
$ s- }. W% C2 @! F' Y - r(/ ( * m z) 2)
5 U4 }3 v7 x ] - rb ( * r (cos a))
, l3 E: `% p6 ?: E6 v6 z - ri rb+ y5 r3 A2 K4 A$ P' ?
- ang 0
6 ~( b0 A: y; v; J9 h - g (polar p0 ang rb)
8 ^! p0 l+ U& z1 A. s- _ - )
2 z1 e' O) L8 q3 U - (command "circle" p0 ra) r3 J& Z9 r W' @: r3 M; E3 J
- (command "circle" p0 rf). ~/ A4 a' e; j" H+ W: _
- (command "circle" p0 r)* G0 B& d& w" z$ i0 t
- (command "line" g)0 x6 Z. g' v. L' _$ H+ E1 B
- - [3 M' u- G/ K( ~
- (while (< ri ra)6 _" ?0 G9 n. c W
- (setq
" Q3 E- ?7 e+ r! P' }, k$ {3 { - ang ( + ang(/ pi 360))% x" ?8 u7 U- q+ `1 k2 J) ?
- ri ( / rb (cos ang)) s t5 m# l( u, Z+ ^
- cta ( - (/ (sin ang) (cos ang)) ang)
# G" r% h- Q# ]) W* b2 \ - g(polar p0 cta ri)" f/ a( F/ U: ]9 _; P+ L8 r7 @
- )2 [) w- G i9 N
- l n5 Y! v; o* S1 D' u7 G t- (command g)/ z" F1 C' V( ]
- )% N% S$ l9 i' E1 z
- (command )
$ o5 i8 x$ E8 N) n' c. M+ Y. T - )& d3 I( _6 k9 P1 b6 H
! I# F5 A$ Y3 W8 P ? b6 Q
4 m! i1 k* y7 C* w/ X7 ^" k D二、螺旋源程序4 ?( Q. `. C, G+ r& r3 X
3 P s7 g$ V, s6 g2 B( z- (defun errMsg (s)
7 K; r/ |4 j @3 K- Y - (if (/= s "function cancelled") (princ (strcat "
$ J! u+ K3 g5 ? - Error: " s)))! M0 J% X! q* ?9 ~: @' M T& }
- ; 当命令执行时出现错误% `! H- M8 ^. k
- (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
5 {8 I: r0 E" p2 L1 A - (setvar "osmode" osmold)& n6 \% T! r" ^# |! {$ O4 u' A
- (setq *error* olderr) ; 恢复旧的错误处理
z9 L+ {( h2 s6 y: g6 S - (princ)
; B) s8 E3 u' g! y3 r& u - )
* k2 |# ~/ Z1 E+ f4 w - # V, n! K7 t( G6 Q
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle
+ Z% |& J- A- S7 q6 o# L0 _ - ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
3 p/ ]0 w' n# {" W - ;-------------------------------------------------------------------. y+ x9 ]3 M9 j+ f" G
- ; 获取公制外径大小、螺距总长
0 T7 ]( V; ~5 a1 u+ X& Y - ; 然后计算一系列几何点
* U9 a- W. _5 v$ j C8 W* J o6 j - ; 并且关闭对象捕捉、命令回显- D" E R' M6 y2 G$ z* Y+ X
- ;-------------------------------------------------------------------
6 }3 `1 h7 M0 c7 t! `, g2 u - (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)) + D- N! M. r4 i7 G
- (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)) 7 @8 ?& @* O; c" P! \5 `8 X" U
- (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))
# V# |0 T) @' j* `2 z4 `8 ~/ `4 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))
: h$ r& ~: q* s: k2 _* Z - (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)) C B) p- M: r' I
- 2 c5 O8 n( V9 l# Y
- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
# S4 ?: ^ z% u4 i0 m; u - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值( v& r" r" T1 z7 F! j: s
- (setvar "osmode" 0) ; 关闭对象捕捉 + P' V T: a) {$ G3 g
- (setvar "cmdecho" 0) ; 关闭命令的回显
' _9 B4 U8 I0 Y2 g7 Z' _ - 2 P, @$ [1 }' U# q
- (setq innerdiafactor 1.5) ; 设置内径系数* ~ G; a/ J1 G
- (initget 7) ; radmid 必须非零、非空、非负
6 R. k! q8 P! k9 D' j - (setq radmid (getdist "
+ I- Z1 F& L f - 公制外径: "))
6 _( F7 n+ z) D" C - (initget 7) ; threadpitch 必须非零、非空、非负& @% l; C' `' f# S+ d) m
- (setq threadpitch (getreal "
; A" Y* I \- d- C# b% [, G5 D1 Q: e - 螺距: "))
0 {6 `0 y5 z+ Q - (initget 1) ; ptStart 必须非空5 l5 a% Z. }+ W5 @7 W
- (setq ptStart (getpoint "" z8 f1 N( [; Z8 k" y
- 起始点: "))6 @# u; k. P$ Q. v
- (initget 3) ; threadlength 必须非零、非空、非负
- `+ g1 e8 ]1 {# v8 u1 v, I+ b; ? - (setq threadlength (getdist "
$ k3 c' ^ Q' Z3 p* V- ? - 螺纹总长(Y方向): "))
; C. m, z6 e. F5 \/ q$ w$ {4 X; i
) z$ |) z! h$ P2 \$ D5 X: R! U- ; 对公制外径添加公差
7 T1 ~; C5 ~6 ^. @, |; Y% Q( U5 X - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
$ S( s& |% r* o" T - (if (<= radmid 6) (setq order 1)7 y2 j( W% ~2 w
- (if (<= radmid 10) (setq order 2)3 J7 U' y% |/ }: e6 F& }
- (if (<= radmid 18) (setq order 3)
! |( Q! f8 t$ f - (if (<= radmid 30) (setq order 4)( V2 H& o- }% |% U8 S
- (if (<= radmid 50) (setq order 5)
4 J8 h" |' I2 E - (if (<= radmid 80) (setq order 6)
: E, I2 T- t) g9 c/ \ - (if (<= radmid 120) (setq order 7)
* Y/ ?# N* i- \6 o) A. c - (if (<= radmid 180) (setq order 8)* T4 V' Z# E% _: W& F
- (if (<= radmid 250) (setq order 9)
; l( p+ A, Z) h - (if (<= radmid 315) (setq order 10)
( ]: ^1 o' K, M/ L - (if (<= radmid 400) (setq order 11)/ i w6 @5 \6 l5 a
- (if (<= radmid 500) (setq order 12)% ^% Y: f3 [$ |# D5 y
- )))))))))))))
* \0 d4 D. {1 y- E5 p% p4 }
2 I# \2 N0 l: a+ x4 w0 U- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带( R& \6 v/ Y. g
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
' K: q, J# o% E3 E0 I; f( ? - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
9 o y, H3 P) i' f) O - )))
, J3 N1 k! y6 [* H0 w: ~ - 7 @) O! ^1 Y4 R+ r! u6 [8 X4 g2 {
- (setq h (* 0.866025 threadpitch)) ; 计算齿高. y; E( X/ b5 \) l
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
! M3 f8 G5 z4 C# O+ A8 I6 L, R - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径8 v' c4 |) n8 ~1 J0 ~: }
- (setq threadangle (+ 30 0)) ; 计算齿顶角' b& v) G* g: e1 k- H8 I! V' z% z
: O% ] d+ \% N- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数$ V# O( R& x J
5 Y3 v' `& O7 r2 h9 t% t- (princ "
# F0 w- Z3 o8 P4 v - 三维螺纹创建完成")# v( s9 ^( f" y v6 R* `* U9 }/ u
- (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值: T, S3 a% T9 H* T
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
?& i1 u& A+ ^- M; j0 I& D1 c- Z - (princ)7 w3 P9 o: I; i9 \( p
- )
& d4 v' {% [1 l& s4 j
. V. s& V6 u, F& H6 i( _- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
! j; B& J% s% z/ @- d - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)# I. ^9 R; A5 K& T! u+ b6 E
- 3 o% a# O' w- Y5 K z
- ;(command "undo" "begin") ; 开始undo步骤
" ]5 e! J5 N+ s* [, i - $ ^4 t/ W- q c, b! o( w# z% l, w
- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)9 Q& C/ ?9 o y5 Q* g, v0 K
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
5 t8 a) O% M* o4 [1 ~! P! b - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
1 X% m, t. p# K, h% ^8 { - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
. Z! U; D7 H/ B" ?" k - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))) [( g Q4 f9 E7 C3 \9 N
- ang (angle pttmp1 pttmp3)* Q2 m3 ^5 P- A# @; I( _
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
4 {, }" K9 T/ [5 b! L, @ - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))& W, z. i# o2 C8 P4 y
- pt3a (polar pt1a ang radouter)# A4 j( ]. t* N+ K" B( }5 N
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
$ N* M* q! Z* t' ` - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))( h; W; ]( {5 e# D
- pt3b (polar pt1b ang radouter)
- t9 Q6 ?8 B1 D) F, j' ~7 @, j - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)6 g8 C+ R( `4 S1 k
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)6 z8 j! g/ z, J9 \+ ^1 p2 ^
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
4 @: K; H5 a- k9 q) l. d4 ?9 M - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
6 M" [" _/ i/ _% r - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
: p: {- v- C8 V8 z9 l" P - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
. g. h: c: K1 K& H, \ - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
2 o. ^4 y( r# |6 m- h - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)
- _8 u1 [7 c9 S* [9 R - pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))0 ~( P" ~. b5 w
- )
6 Q1 m' z3 C6 n# s8 G1 z
# f; |- n! F& c- s- ;-------------------------------------------------------------------
! K- L* Q5 G6 S) Z; S7 M+ } - ; 绘制两个倒置的并偏移1/2螺距的圆锥
j$ }6 M1 L) ?! p - ; 这两个圆锥都以中剖面剖分( W" f6 D' s2 n, \/ [2 T; d- a4 F
- ; 进行并集运算3 i8 a! N2 r8 u" [: p
- ;-------------------------------------------------------------------8 G, W4 b( a" ?" r- j: P
7 k/ `3 q+ a9 _& o7 W' g- (SETQ startcone "order") y# [" P9 C6 U
- (SETQ endcone "Y")
% v! {# I7 [2 D; i! L" ^7 r/ A C - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)9 m6 i( ~- K8 v, s* s
- * N: J# W. a( Z7 q9 |2 Z
- (princ "# R2 b! H/ }. X8 P
- 正在绘制三维螺纹，请等待")0 ]: W, L2 M8 [; B5 H0 F; N
- (command "pline" pttmp1 pttmp5 pttmp6 "c")
; W; \1 `5 v' x$ P# {, \ - (command "revolve" "l" "" pttmp5 pttmp6 "")
% \( Z7 c* a. c9 E - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
9 m/ a+ y% U" _7 r# |! E - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)$ w$ J* S# U# N$ l# a" _
- (setq tstmp (ssadd (entlast)))
' Q# M1 g$ S* U/ V, r0 |4 U1 t - (command "pline" pttmp3 pttmp9 pttmp10 "c")7 n* y/ ?; l1 c) w7 q% _
- (command "revolve" "l" "" pttmp9 pttmp10 "")& t9 _: L" k& X# h1 n8 Q
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
+ O# |& u) B( F; G; X: Z- }! H - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)& ~- q+ Y; n4 y+ F
- (setq tstmp (ssadd (entlast) tstmp))
5 j% e- a) n& q' @ - (command "union" tstmp ""), ^% @( u/ I1 m9 s: X8 ~) J
8 G& M) S9 H8 W2 O- ;-------------------------------------------------------------------
; l! Y! C- D6 W4 Z6 R - ; 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
5 v% h5 g+ L; n8 o2 Y - ; 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
) J' h8 b5 o1 J. e b* o' q9 j' g! } - ; 在最后一步被切除7 m6 x* w$ S1 _- |" \# P: m; I i
- ;-------------------------------------------------------------------
2 B C1 D) g% `0 R+ X - : J5 y) U: {: `6 y* Q0 M0 f" x( W
- (command "slice" tstmp "" "xy" ptStart "b")
9 b7 J w; l0 P2 c9 w/ E2 ?/ ^9 t - (setq tstmp (ssadd (entlast) tstmp))
. S7 h0 j7 w6 n, f) G - (command "mirror" "l" "" pttmp1 "@10<0" "y")
$ A3 z/ v7 K K9 M. z$ W4 I - (command "union" tstmp "")
/ g( `& O- u4 f8 [* m& x - 9 Q9 H) F5 y Y! m+ [5 }
- ;-------------------------------------------------------------------
0 T! v% S; x! Q8 |$ r& \9 @* g - ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）
% \4 A. E2 q( }, M5 Y - ; 得到的实体再切除到指定的螺旋高度# _. n, v) X) p9 J7 P
- ;-------------------------------------------------------------------
7 S) m. @* A1 r/ E3 w+ P# D
( c2 l" l# @. k, W- (setq e (entlast))
, B [6 f4 N1 J8 h; ? - (command "array" tstmp "" "r" ttal 1 threadpitch)0 M X2 d K7 B. S
- (repeat (1- ttal)
, \. N9 U" ]: z+ l - (setq e (entnext e)) N+ H& o7 E4 v7 P* S2 ~0 @
- tstmp (ssadd e tstmp)
; j8 [. a" N w4 S - )( _% d( {) B4 k
- )
" s/ _' U: F9 E1 a/ g - (command "union" tstmp "")! S1 t) F; |; _4 a" {. y" ]
- ; i& n$ R2 ]1 {0 H0 j
- ; 若开始创建45度的圆锥
6 Y$ w" N( O8 B2 q+ N/ f4 | - (if (/= startcone "order")
% u" R! E8 X6 | - (progn (setq e (entlast))% W9 g) X6 @4 W
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
0 Z( U0 g7 S& X+ k9 d - (command "union" "l" e "")
* I$ }" h: L6 h2 h- ?* b/ I: K$ I - )
7 B0 r4 y9 E8 {$ [% W9 N6 ^: z: g9 [# ? - )4 ]6 D, Q, @. k6 h G
- ( Z% Q: P7 K: H3 g; x
- (command "slice" "l" "" "zx" pttmp11 pttmp12)
' t! V5 @: }5 o - (command "slice" "l" "" "zx" pttmp12 pttmp11)" P$ c3 ]9 b3 Q A1 A
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart)))
1 B$ ?, @$ y3 [5 Y8 P) F4 D1 S
; @1 L' U6 r$ C) i$ M0 [- ; 创建最小直径的圆柱体，然后与螺旋作交集
! l6 H/ a, P; C - (setq e (entlast)) h! A, C5 m; v: ^
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
! k- R- U1 }5 \( I' i. O - (command "union" "l" e "")
+ T# D4 Q! V% o - (setq tstmp (entlast))& X2 ~* E9 T, m3 F
- L) \" J4 r' U- ; 创建中空的圆柱体+ u8 i/ ]# z# r9 p) [& ~9 @
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia( \9 E" m- g1 u/ U V5 p) V
- (setq e (entlast))
/ N- a3 y) b2 L- \9 s* B& i2 v
8 N6 S2 [' F2 F" q$ c: [( F B& w4 h- ; 若最后创建45度的圆锥2 K& ~9 u! R. ~7 {! g9 p7 F
- (if (/= endcone "order")
+ a+ d3 c0 x! D* `! V9 n1 s. M( | - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) % v) E2 {& ~" _, @9 O
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
3 Y/ H1 X! \1 n8 v) i- L - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
9 M4 F: P! X) ~4 z& d - (command "union" "l" e "")
/ B( `- h' `1 x: F Q* b# l% l - (setq e (entlast))0 I( c" n% r0 B' E2 B
- )
; E' g2 R! z6 j Q1 D: h/ ~ - )
1 U; g3 [. a' ~3 ^) S8 ^7 v7 y( f0 k - / y) \7 q; a+ e7 ?9 a5 }3 t- K
- ; 从大圆柱中减去小直径圆柱
3 `; G7 W( m( ^" r4 O8 `, S - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))3 l. ~5 E* h3 P# B' M
- (command "subtract" "l" "" e "")
7 @$ \( [* f7 {2 Z, n - (setq e (entlast))
& P R! [$ X/ x8 B7 a - ( J" I) R5 e; ?- G" C
- ; 从螺旋中减去圆柱
- g% Q, P# A' z - (command "subtract" tstmp "" e "")
& | q" V0 L+ b# z, g$ w! v - 7 L7 n. D% s3 a3 v* l; |
- ; 如果螺旋长度为负然后镜像9 b& s( S9 S9 M5 P; a6 D2 u+ e7 G
- (setq e (entlast))
6 O, @ k$ w8 W. q1 b - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
$ \! L6 p* Q7 r2 P0 o2 M
7 G( S2 W5 P2 d! K- (command "zoom" "p")( R4 \: L+ @/ w) }8 c1 P
- ; (command "undo" "end") ; 结束undo步骤
! @( S/ R t e) X" l - )
# `" y$ d" R4 h: i4 r - % t" C# F7 d) B( {5 N
- ;;;---------------------------------------------------------------------------------------------------------------------;
9 [ M" A4 R' c3 @, p# s4 F7 E. G - (arxload "geom3d" nil)/ U, c( n* _3 x" ~$ z! J, O
- (princ "
* ?1 _. i7 t% s) \' T: X - 3DThread 已加载。 ")) e4 i3 }6 K' k, _
- (princ)
& Y: I: Y& B- M. O
: R) p3 t( U& H- X _5 ]% L( L( `- \3 e4 O& i4 |1 O$ c2 |- k
% Q" D* Z0 }2 U: f( ]* {" G三、弹簧源程序
" k* ]! x p/ h2 R- (defun errMsg (s) ; 当命令执行时出现错误 % S T5 ^0 r& C: S' B9 ^7 w
- ; 例如用户按下了CTRL + C
- X7 X" Q2 A0 Q - (if (/= s "Function cancelled")% b. e; e, n3 H* l: n$ h' L! i
- (princ (strcat ": z& V* O, Z$ Q) A7 `& |" ~) S
- Error: " s))" e6 P% O4 ^+ H1 ~8 p6 u/ C% }* Z" a
- )# X+ Y2 [, A: _0 N
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
, [ }/ @- @3 v, O3 j) S+ o - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值8 y+ @" \$ @; F" O/ k u
- (setq *error* olderror) ; 恢复旧的错误处理
# T/ s4 j0 B/ @ W - (princ)! [, y2 ^4 A$ a4 D: X' i
- )6 T2 _) E) L9 l' o" X
" r: O/ z: H$ g' N: n- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
; G9 {5 e9 b \: z4 ]- I - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)# v+ c: ^9 x. }% H9 |5 S
- 9 a8 ~4 V, y0 B8 K6 X5 q2 y5 m+ r W
- (setvar "blipmode" 0) ; 关闭 blipmode
) s2 k( @% b) C5 q1 m% z - (setvar "cmdecho" 0) ; 关闭 cmdecho- n6 K- l3 t V$ w, {4 B
- (setq Pi2 (* 3.14159265 2))) b" p% O/ c0 o$ U
- (setq aGrw (/ Pi2 lr))
! `/ U; ?7 \3 y, |4 G$ T5 m - (setq dhGrw (/ bhfac lr))- q1 c( }+ R. L6 F- ]+ g
- (if bvfac (setq dvGrw (/ bvfac lr)))
# i* k1 a7 @' D" [6 u - (setq angle 0.0)' _7 `' _, d0 d I3 W
- (if bvfac+ P" M: d/ \) J7 h
- (setq distnc strad dv 0.0)
* n( d* M. j+ r+ |, z3 F3 p - (setq distnc 0.0)7 l: b, N l2 L i# |# `
- )9 P* |% `, |5 _# M6 T9 B _+ t3 }
- (if bvfac / E" n$ y, w9 ]" A) d; s" E
- (command "3dpoly") ; 开始绘制弹簧0 q4 ~. a5 }5 j7 c* N: {
- (command "pline" cntPoint) ; 从基点开始绘制弹簧
- V4 V/ f0 |$ y5 E4 A - )
$ _ H4 m$ h( |/ R+ k2 h - (repeat nRepeat ; {1 L D6 T5 Q& z+ ?
- (repeat lr
( [' Z0 s# u" U! \ - (setq tp (polar cntPoint (setq angle (+ angle aGrw))
6 t {/ Z5 e! v7 b0 y5 ~0 x& \ - (setq distnc (+ distnc dhGrw))+ ?+ B( P: I5 w, H
- )
0 T4 F4 \' @8 k/ _+ a0 ~ - )
- d. _. e9 m3 w9 S' y0 R - (if bvfac
6 n; ?( y: B" Y$ ]% s# s - (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
$ C* O V* W, q/ F; a$ r - dv (+ dv dvGrw)9 q+ G l) G; {8 `9 _
- )
( u6 I; O* Z, ~ b" C - )8 v1 n, w* t9 U9 D/ T& w' D
- (command tp) ; 继续输入下一点
* N8 u/ e4 E6 K) w - )1 F" T/ E! P& ]# Z# T$ h8 q2 S
- )
, E& T7 U9 r* I! ?) I! F# |( P0 c - (command "") ; 输入结束
# J/ l' {7 `) X X4 y, r - (princ): o3 m8 z2 h/ e2 s3 D& ?
- ) ? G1 X9 M3 ^' b- \; S! L
- : ?# x7 v- x+ z8 B
- ;;;: Q; r+ w0 t' O& x+ J
- ;;; 生成三维弹簧函数调用接口3 S ^$ L# f# o; k( C! S
- ;;;
# | X5 g; Z. v
3 D: E* _5 Z' L* V- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) * s0 I- L! J) w4 H* b
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
/ j/ \# Q. d8 v( w0 E% U9 E& Z$ \ - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复* Y6 V- C, `+ k2 Q6 T. @
- (setvar "cmdecho" 0) ; 关闭 cmdecho
5 ^% ~; {1 x6 o' u3 E. K* D - (initget 1) ; cntPt 必须非空
& m" X0 `: W# d9 q+ B - (setq cntPt (getpoint "
0 K7 a6 V% {8 y* p - 请输入底部中心点: "))
! c( l: `1 ?7 I; o6 a$ \* X - (initget 7) ; RottCnt 必须非零、非空,不可忽略
% v5 C g2 S' H9 |5 Z' \0 o- U, z - (setq RottCnt (getint "
2 a5 p7 ?; _& N/ o - 旋转的圈数: "))5 r9 c" |( Z9 V) a4 ]
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略* y7 E% K; p. E, O5 O* Y
- (setq bgnRdtn (getdist cntPt "' b* O9 C, o/ F
- 起始半径: "))( I n' ~. l+ D9 w; a: j% I
- (initget 1) ; cf 必须非零、非空1 t( B8 m9 S! x) w- x
- (setq horiGrw (getdist "
0 c) j' \7 M. z9 ~; w- G& R# F, F8 [ - 每一圈的水平增长距离: "))
1 Q/ x- k9 }0 m - (initget 3) ; cf 必须非零、非空
, t; Z, `' p4 Y6 u0 h, d' j - (setq vertGrw (getdist "
" F* P( }' X/ v- F/ p - 每一圈的垂直增长距离: "))
! H- r* r; l' n( K# ~ - (initget 6) ; ptCntPerCircle 必须非零、不可忽略& Y0 m, W7 c" F3 l
- (setq ptCntPerCircle (getint "! I! _2 x ^% ]
- 每一圈的插值点数<35>: "))/ d5 y% Z$ r* _& e
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
: ?. ^2 Y# u; Q% f* f+ f+ E3 n! P - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
% _6 o8 `8 n5 \, |7 W* U; f8 v/ [ - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
" t0 h5 n& X9 K+ ]* `2 u; Y4 S+ H - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值# V+ g& s7 e4 m& I# t
- (setq *error* olderror) ; Restore old *error* handler# Q& E3 _* `6 M' x
- (princ)
* a4 z [" B/ T7 P R, { - l4 _2 Z7 J/ f( s9 F
- )
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
