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
& l! }; K% o# J4 g
$ I) U) N& P8 `: t3 J M7 R0 h; o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：' ?( V- l' A; S+ G! P+ l( K
一、齿轮轮齿渐开渐开线
$ a/ b" T0 w( T, R
% v1 l. f5 I" v- (defun c:gear(/)
, m1 Y1 q# P1 b$ k7 o# Q& ]* P - (0 }( U) d/ ]7 {; u0 u `. d
- setq
. [, w# ?/ X9 ~6 V2 a5 w% M- {; r+ } - p0 (getpoint"输入齿轮中心p0: ")7 h/ W5 J3 b) F; m& h: t& y
- m (getreal"输入齿轮模数M: ")# v7 `4 n0 V0 ?4 Q
- z (getint"输入齿轮齿数Z: ")
; X. E2 A9 E+ h3 t' I& b - ha 12 |# r5 ^/ ]0 \& a
- c 0.25
# n* r3 E: ]5 I - a (/ pi 9)
8 |) v$ o, j; P - ra(/ (* (+ z (+ ha ha)) m) 2)/ D5 K; k* m0 A/ x# [2 [. z
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
8 S; q2 i; d7 p9 p - r(/ ( * m z) 2)8 R) c" W9 a5 E$ |( A. ?
- rb ( * r (cos a))
' Z9 K3 h, X0 Z% g - ri rb
+ c" K0 |1 d3 T( I/ | - ang 0
1 B5 r+ v, T+ w" w, U - g (polar p0 ang rb). t" ]$ x; Q- L* o% ]% C
- ), Q& l% N6 {- O5 X0 Y- l$ B. `
- (command "circle" p0 ra)
5 C3 u( d6 k! I: j. z5 |* s - (command "circle" p0 rf)
. h0 K+ q9 t8 S: t7 U! s& j - (command "circle" p0 r)( ] V5 v, W# J, E
- (command "line" g)
: O* C1 S/ l/ O, G0 e -
4 `) |. s+ Q6 s! _4 d - (while (< ri ra)
! h9 v9 b4 A8 u - (setq
8 E# @+ P; P/ H$ j4 v& U* K - ang ( + ang(/ pi 360))( ?: ]1 J% @* f4 D( h
- ri ( / rb (cos ang))
- ^4 Z. j4 ~8 o# P% w9 d - cta ( - (/ (sin ang) (cos ang)) ang)
7 B, R3 X& w) _7 k0 r& E2 s. { - g(polar p0 cta ri)' u" s2 V0 V" h$ Q- u- y
- )
5 v/ h6 `, [9 z$ p6 C* t$ d - : V0 m: g# O4 y+ d
- (command g). W4 S( I1 \. Q. S" J) o
- )
! @1 U* D4 e! ]2 U* H* v; P - (command ) - ^0 F# \4 |) L
- )
7 k' J5 E; V5 i! \
3 G9 K$ `' ^/ p5 o1 E
' a3 p& C p0 \( J
8 D3 E2 X7 l( U$ V, g二、螺旋源程序% ?# v9 W1 x$ \+ o- Q3 W2 v
, a7 |9 N8 Y9 L! y L( P s- }- (defun errMsg (s)
) Q% A; a5 e8 P6 G% W. m9 _ - (if (/= s "function cancelled") (princ (strcat "
8 D8 a+ v$ i5 y$ T; f5 N - Error: " s)))
( u% d* X. c- V) u2 h - ; 当命令执行时出现错误
; w3 I, c- L! [- Z - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C5 b3 n# x; s: B1 Q% ?
- (setvar "osmode" osmold)
* i9 g7 @$ g+ ^8 i8 V - (setq *error* olderr) ; 恢复旧的错误处理( T0 r8 f' p" \& c7 J+ E- U
- (princ)
% q0 \, e3 J- I# n c, a" h& W0 } - )
2 A+ I: H1 \! y$ L - $ B+ ^$ c) Y1 W, I5 Y: _
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle * _4 [5 B- `0 M
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
x) |7 `. p* @! r$ K' @& b - ;-------------------------------------------------------------------4 a6 @* d$ x. z m! V7 }
- ; 获取公制外径大小、螺距总长7 s- F/ V& x0 E6 V
- ; 然后计算一系列几何点
- v+ c. J% _4 \) W1 k - ; 并且关闭对象捕捉、命令回显& l. w+ E F& k/ |! K/ Q
- ;-------------------------------------------------------------------9 k# x& y G5 s' `/ F
- (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))
8 @# v" n! n1 m) c( L; S - (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)) ' m. D' Q0 { N0 W0 J- n# Y
- (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 V1 K% k! p! ? b$ 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)) 5 s4 _! E3 n! Q3 t' ]/ 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)) 6 A: J) t" W4 j' z6 w9 z0 y
; G! X% B, _5 p/ {4 f- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值; I g: u% h. d3 E0 M
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
6 |4 p: ~# \* I. z( r - (setvar "osmode" 0) ; 关闭对象捕捉 7 m f& I _+ A/ d9 ?$ j! v
- (setvar "cmdecho" 0) ; 关闭命令的回显4 e4 F3 o/ f) m% ~
- - a3 J8 P" Q9 d: e7 p
- (setq innerdiafactor 1.5) ; 设置内径系数2 U$ g0 P! w) ]# ^
- (initget 7) ; radmid 必须非零、非空、非负
% N! g/ K/ }( S& y9 w3 d# [ - (setq radmid (getdist "
r! p i0 d8 q - 公制外径: ")). w% U' M8 c% ~. l4 V4 \/ R
- (initget 7) ; threadpitch 必须非零、非空、非负
* O" X0 v6 D" T( _/ _# N6 g) n4 U. f - (setq threadpitch (getreal "0 q0 D' ?/ J2 [" _
- 螺距: "))
8 }3 c/ K5 K! L! ?. G* T, q, i - (initget 1) ; ptStart 必须非空
& F, H3 V* h4 t# A8 U* w - (setq ptStart (getpoint "
/ k$ }7 k9 W- j6 ^8 t. S - 起始点: "))
8 P1 n f: v, A" I0 | - (initget 3) ; threadlength 必须非零、非空、非负5 Y% {5 p1 K% S0 L" |4 N+ I
- (setq threadlength (getdist "
2 c# {. P5 s% U" n5 k - 螺纹总长(Y方向): "))8 D9 C B: V% i( S" l4 |' h
- ( r. ~5 |2 _1 B9 @
- ; 对公制外径添加公差. O) K: I% i1 n9 {$ g7 T% H
- (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置) E: ^- ^) T, p" l" G
- (if (<= radmid 6) (setq order 1)
. }3 d) s7 s( M" Q, M - (if (<= radmid 10) (setq order 2)9 r6 ]( [8 R7 _1 |
- (if (<= radmid 18) (setq order 3)
) M+ T- J9 @3 ^) ~/ x4 o2 H - (if (<= radmid 30) (setq order 4)
5 U' L. o2 e; p8 ]* m7 s* S - (if (<= radmid 50) (setq order 5)
% L+ D$ a3 ~6 ]& e+ S/ Z4 {- Z. X - (if (<= radmid 80) (setq order 6)
2 B' J/ z/ h1 Q0 x# b# S2 ^ - (if (<= radmid 120) (setq order 7). ?( {5 s1 v$ }# \8 F: g
- (if (<= radmid 180) (setq order 8)
6 t- _9 Z- A- X9 q2 A+ l - (if (<= radmid 250) (setq order 9)5 P F: f4 K5 P. u& f( ]- q
- (if (<= radmid 315) (setq order 10)/ y L4 z r; J' @) M
- (if (<= radmid 400) (setq order 11)
|' D! u6 n* R' F {; V% p: |+ c y - (if (<= radmid 500) (setq order 12)
1 B/ H% S- d, u" u; o4 s - )))))))))))))
/ r3 z% [/ T5 C+ N; v - # h# R, W; L6 w: H* T m
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带8 k7 W" Q7 o4 {6 k) e
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))7 _, B, `: [5 V! n& X" w; D
- (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))7 S4 m" f) j* Q7 E0 s" `( B
- )))+ G3 \" t1 A% m
-
/ X( e& _* g* C8 r9 o& M- D - (setq h (* 0.866025 threadpitch)) ; 计算齿高
+ w! @+ D; H! q6 k: J - (setq radouter (+ radmid (/ h 4))) ; 计算外径
3 L* x, Z3 v, ^+ l0 [, T6 T - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径% B/ P1 \* i, e* c9 n
- (setq threadangle (+ 30 0)) ; 计算齿顶角; N1 ~5 T: n1 ]. E& B5 y) ]
- ( h/ P& k. A3 z1 h- q1 S: ^
- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数; x; m$ Q! {! c: q
- & `5 l4 v6 [ G$ G/ t# T2 t. K
- (princ "" H; L* G0 u) P3 S5 n
- 三维螺纹创建完成")
7 r) `' c( V2 b' h( m0 f1 K - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值% w$ _3 \" E5 H
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
2 L8 I o1 w6 y, ?& M. g - (princ)$ }# Z1 g7 T. J# x
- )
. P) p* I& g+ C- w' E
5 Z4 b, O& Y1 w- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
M/ N! W! S5 l& p - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)6 s; h" W+ a( P" i5 b% Z
0 Z4 p8 C7 c( A" x5 b/ N- ;(command "undo" "begin") ; 开始undo步骤$ g+ ]* Z" V' m# c% x" l
# K2 K/ h1 N: a6 ?( Z- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)
# }0 Q* w+ B$ o - pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
. m! e9 K; c2 E* s: c - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
9 z( {0 j) L4 N3 \* V5 K X7 x - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)' g7 o! \9 {, k- `+ W
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
5 o& S- Y% j% u3 A9 h4 r: d! Q - ang (angle pttmp1 pttmp3)
6 l1 Q& h* k4 e9 r7 D" O - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)( \# k: J3 ]3 P% B7 N0 S
- pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
. g7 Y1 w" d: Q$ F9 _; U - pt3a (polar pt1a ang radouter)
% i* x7 l* M7 ?+ g) P) i, T5 [9 C - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
1 J0 b4 ^/ D) w. {, s: j) w - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0)) t) J! ]4 S$ v
- pt3b (polar pt1b ang radouter)
/ D0 |+ ?- e' ~, d# V; ~# c - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)( l2 T, Z7 i% Y) V9 a$ m5 K4 V
- pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)- h! k, D" Q6 j* U; W
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))- [# K" u* H$ P: A; R/ u$ I
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
$ A; W$ [8 R1 |' |, M" ?4 h - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)) `1 W F8 x% M
- pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)7 q' H# ^2 F- e8 T+ g5 ?
- pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))0 X t. J/ D8 p; \
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch), s& r0 G* R3 _
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
. e1 x' |& A4 c9 h" M: H - )
+ J" S. f, g3 j+ K; j8 k - $ A# r1 S8 y1 {4 r& i( ^% V
- ;-------------------------------------------------------------------
1 a, U* g& ?/ L" k6 e! i* k8 [9 d - ; 绘制两个倒置的并偏移1/2螺距的圆锥
6 t: t% W7 W2 L. t* {* e - ; 这两个圆锥都以中剖面剖分' t' n9 a; N. c
- ; 进行并集运算0 J1 o( e- M$ N$ M9 J) C
- ;-------------------------------------------------------------------
9 x3 g4 s# ]* O R% |# \; Z5 U
5 z+ r; Y4 S' [, X- (SETQ startcone "order")# G- v/ G2 P |% k: c) ? D- q8 i
- (SETQ endcone "Y")
9 c3 n8 }" b" x+ @' } - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b). x: k+ _, D) i0 L! A A
- 3 D8 g. q0 X( y5 Z& K& r' y
- (princ "
' V* p: u6 l# X, K5 H - 正在绘制三维螺纹，请等待")2 c1 v4 F1 U! j$ e9 ^; a+ _' x2 Z9 N; t
- (command "pline" pttmp1 pttmp5 pttmp6 "c")) [' j. O6 H9 r. O k
- (command "revolve" "l" "" pttmp5 pttmp6 "")
# l) g* w9 c' G( T' I3 b - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
, g4 G, A5 v0 |1 @$ B - (command "slice" "l" "" pt1a pt3a pt1az pttmp3) O/ v* M9 R, b
- (setq tstmp (ssadd (entlast)))
" b3 C) _7 e6 {9 W% M0 X* | - (command "pline" pttmp3 pttmp9 pttmp10 "c")! X/ o9 c. _3 |
- (command "revolve" "l" "" pttmp9 pttmp10 "")
& @: d& F# q3 f7 r; L* ? - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
( j0 e. r/ Y. y3 o" u - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
* M* n2 d4 w$ i2 A - (setq tstmp (ssadd (entlast) tstmp))
% P1 H: @ o K6 O - (command "union" tstmp "")
. B4 S- e- e% A, B - 4 J% d% R7 X* H7 U8 z! h/ g$ H' m7 t
- ;-------------------------------------------------------------------
5 U/ y, W: C! k; D2 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. d3 @ H- h: e/ c8 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: M2 Y. S7 k4 a) u4 ]8 J6 y Q
- ; 在最后一步被切除
; ?$ G, b$ u& q" `$ Z1 l- ?7 P1 } t - ;-------------------------------------------------------------------! X2 ^# v" I1 g w+ C- S. a5 N
- * q% r9 R0 m4 |4 K0 e1 X
- (command "slice" tstmp "" "xy" ptStart "b")
4 @& z6 E9 H, U& z - (setq tstmp (ssadd (entlast) tstmp))$ {) n N; _8 t, Q) n4 @
- (command "mirror" "l" "" pttmp1 "@10<0" "y")+ P- c% Q4 k% H1 l# v6 O" c. `
- (command "union" tstmp "")* M0 o: i! q9 \& |
- & {! w* D1 D; M7 [% M7 D
- ;-------------------------------------------------------------------, C" D) ?% w( T$ j" [: g0 x
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间） J0 W2 l7 |7 E+ _: {
- ; 得到的实体再切除到指定的螺旋高度
" N0 ]/ g4 D0 g9 Y - ;-------------------------------------------------------------------
. s4 \" s& O+ ]# I; W( H) T& E5 |
% K8 A2 r. u- P4 N; K- (setq e (entlast))! g3 a& t: W, I+ l+ `! i7 K
- (command "array" tstmp "" "r" ttal 1 threadpitch)
7 ~6 W5 b4 S1 R# ? - (repeat (1- ttal)
7 k- D8 X( g" U. _3 _# k* H - (setq e (entnext e)
$ p6 d# I) j9 c! N; v3 G& p; h - tstmp (ssadd e tstmp)
5 F6 E' ~4 Q) n! f( [ - )
5 I7 ~( W- k/ X4 V) t3 D - )& Y" w- M2 K! i* A! |5 e" i* B# a: t( G
- (command "union" tstmp "")* o" l6 d0 j8 \% l0 D+ A
* G) a) i5 D: C- Z- ; 若开始创建45度的圆锥4 c7 T2 X1 O5 A' j& u X
- (if (/= startcone "order")
. e3 L* W3 u" \1 u1 A - (progn (setq e (entlast))2 X6 U5 j, \* b
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart))): Z e# C! z* `
- (command "union" "l" e "")
`- X7 h/ {+ i, Z {; c - )
6 r# I5 Q$ [, m3 _ h - )( {) |0 U3 j% a) t$ L" }
- * a6 O% J; N$ H% A
- (command "slice" "l" "" "zx" pttmp11 pttmp12)( Z! H: g9 T# B. i g2 j$ r+ j
- (command "slice" "l" "" "zx" pttmp12 pttmp11)
( u- y r' y. ?3 `+ W - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) 1 _7 O; @ r# ^ l: [& o- F- U
( E" R# O: p/ z4 \" v* I- ; 创建最小直径的圆柱体，然后与螺旋作交集7 V- o( x$ U9 \9 P0 r' ]2 r
- (setq e (entlast))
6 k; i. ?1 b" d - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
/ B1 ?+ R/ Q" I3 L$ s% d - (command "union" "l" e "")
7 ^- e0 _7 K, t1 P - (setq tstmp (entlast))
! H$ X( ?4 `3 ~" }3 N - 9 s5 u: j5 b% K8 o
- ; 创建中空的圆柱体4 t+ Y" o/ {3 }5 }5 \# ]5 c
- (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
( j" u- F: @4 ]. B7 r - (setq e (entlast)); ]. P" p- s) E" E% c; [/ a
- " C" k, f% U( R# A6 h4 h! z
- ; 若最后创建45度的圆锥
# b+ S( J4 u5 l- @1 V - (if (/= endcone "order")
" K' w9 w* P) [1 U& ~- Q/ ^& W$ \ - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) 8 [4 Y6 ]- T; {1 x1 m
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
9 H8 p9 p& s5 X! D - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
( U) b/ i4 Q0 Z; C - (command "union" "l" e "")
/ b8 E8 s1 ?7 t: y - (setq e (entlast))
8 j6 y; o. o; L: N4 B - )" e/ U* M6 T' S
- )
$ \2 b1 C n$ k) d
+ C6 |. k( H, x0 p- ; 从大圆柱中减去小直径圆柱% |( ]1 y3 a) t6 Y) K/ c
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))1 W$ ] h& `& [0 q8 D
- (command "subtract" "l" "" e "")
& n- I. v- _/ [9 {$ S - (setq e (entlast))/ L9 C" T. Z- T1 W
- - i0 j) S8 L$ h Z' |% {6 V
- ; 从螺旋中减去圆柱8 i% D8 X# K# W U* K& ~
- (command "subtract" tstmp "" e "")
3 w" u% U3 E8 C8 P) y# y - 8 \, T, H9 a8 u! C
- ; 如果螺旋长度为负然后镜像) C0 D) s6 c2 `- {' V7 O
- (setq e (entlast))
2 A: O! }8 q, J7 ~+ K! m9 A2 { - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))! G" ?; ~6 }. E- A- \& [
- Z0 f7 B: U1 C
- (command "zoom" "p")
9 h/ r. l! c4 v% O! B6 j1 T - ; (command "undo" "end") ; 结束undo步骤. ]# H# C d5 N5 _# d! x
- )% s( _/ {* Q4 z* f( z4 K0 A. S
; c6 d7 F7 |. Y7 p- ;;;---------------------------------------------------------------------------------------------------------------------;
9 Z9 ?( I9 G' o - (arxload "geom3d" nil)
( @$ W! @& G& f% @! c/ V8 F - (princ "% P. _' q1 H5 G$ z. H
- 3DThread 已加载。 ")
/ m' b" I/ u3 |( f, D - (princ)6 R D- v! n* O8 K& `8 J
/ U! q5 v6 N$ }4 a" J6 h& r$ Y: }7 \4 H
& e) n" S- u' ?% H
三、弹簧源程序
\8 w0 S! Q- \. L' \- (defun errMsg (s) ; 当命令执行时出现错误
1 Y6 p9 D q* ~- \2 u& H. _5 @: ^1 V - ; 例如用户按下了CTRL + C4 t( }# U8 |# o$ Q3 q
- (if (/= s "Function cancelled")4 e( g& X- r$ E9 [- H
- (princ (strcat "
; |* z. D) V( a9 l( r - Error: " s))0 Q! Y% ^0 A( ~8 H2 E
- )8 O, b8 z( ^4 c( e7 O
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值! P- W& C3 S4 z( n6 P; m
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值. i9 h5 z6 s9 c# I% q
- (setq *error* olderror) ; 恢复旧的错误处理
g1 K0 \# R, E- J - (princ): b" @) [7 h6 B8 C
- )
4 X. x- M ~5 d* c! z+ J
9 A$ e4 E$ B2 j( `" i- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
/ \2 u5 `" I3 z! e. M - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv). B5 }& [; V0 s* h6 ^
- . v; ]7 l% Y% [" P3 l8 I
- (setvar "blipmode" 0) ; 关闭 blipmode 3 w! C( I* e* b7 `2 @" Y7 k+ ^
- (setvar "cmdecho" 0) ; 关闭 cmdecho4 s9 {1 I+ D' u1 H* \ w% Z& C
- (setq Pi2 (* 3.14159265 2))
8 P/ Z, F( ?/ ^ - (setq aGrw (/ Pi2 lr))- i# r0 c$ _$ e5 `* U1 o- O
- (setq dhGrw (/ bhfac lr))
! a( p; k8 _4 c* U. S! u - (if bvfac (setq dvGrw (/ bvfac lr)))
( K: v) ^" p7 p - (setq angle 0.0); }2 j5 c6 K2 S% l) ]' I
- (if bvfac" a) u/ O5 Y2 i9 S' V1 j
- (setq distnc strad dv 0.0)' j$ |. v" R) U r* T
- (setq distnc 0.0)
9 }! {: z! P2 [ - )$ _) L r" b. h- Y
- (if bvfac
3 p) M2 k+ L) j3 ^9 v - (command "3dpoly") ; 开始绘制弹簧
1 W6 a+ W/ b* Y9 W- v+ j3 T - (command "pline" cntPoint) ; 从基点开始绘制弹簧5 l9 O- I+ t$ |( u" R
- )
& c8 t# j1 h5 l6 U6 h+ E4 q - (repeat nRepeat & z0 r$ O& i. c* o
- (repeat lr % O$ \6 c: _- [) |& V/ G/ H5 W
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))
7 O9 y- N! y. ^7 M- _, {. M - (setq distnc (+ distnc dhGrw))
: U$ E$ v& M& z3 S& |7 |# W - )& O a2 T5 ?/ k
- )+ R* R$ V; m/ n, o S
- (if bvfac* r, G. u# j9 y7 J% `. I2 S0 m
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
4 o C5 l+ g5 o9 y2 n3 h" j - dv (+ dv dvGrw)
) p, [. v$ B: Y2 K' J; _ - )( C. O/ E) p) N& L* Y N- [5 W
- )
, @! f8 T% A$ ?9 S0 [7 f - (command tp) ; 继续输入下一点+ K3 C, r) Q' ~6 G& \6 w
- )
4 H% W( \* @$ d# W6 p - ) * X8 ~6 v/ J0 }& h
- (command "") ; 输入结束
# L% P0 C W4 T! p5 | - (princ)7 K/ ~: x" }6 T4 u8 K- G" B) l
- )
# K! F4 a9 P. ]8 ^ - $ p$ o. M4 K3 D" E C6 P3 d
- ;;;1 {6 D, b) v: N$ C5 [7 Z
- ;;; 生成三维弹簧函数调用接口
& B- M1 @3 ~! t+ w0 t# ~ - ;;;
4 _ F" t* C2 d9 Q- R. q. n' A - : I6 e% H: ^& U
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
3 |( |# F; p" n - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
) F4 @6 j. e: W* v5 H; q( ] - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复6 f" a4 H) z/ h) R
- (setvar "cmdecho" 0) ; 关闭 cmdecho
' Y1 }9 K# U! ]8 d$ L - (initget 1) ; cntPt 必须非空
3 d e7 s0 A7 g; m - (setq cntPt (getpoint "/ b" b# P& _4 J/ _
- 请输入底部中心点: "))
! ]$ [$ m2 T) I7 d+ D" O% o4 e - (initget 7) ; RottCnt 必须非零、非空,不可忽略9 B) b$ n1 J2 E- c) i; d6 s) O; D
- (setq RottCnt (getint "4 ^/ ~% s" R e+ R
- 旋转的圈数: "))" R2 a3 F) Z. I/ J
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略/ Q6 b( z; z9 U
- (setq bgnRdtn (getdist cntPt "
0 M) m7 v$ h# B# O% p& ~ M+ v - 起始半径: ")) e3 G3 [8 U0 W. Z# E; t: S
- (initget 1) ; cf 必须非零、非空
+ r4 t! d1 V8 C9 B- V! y, }4 ^ - (setq horiGrw (getdist "
. c0 j: V+ s" d; C! J9 [ - 每一圈的水平增长距离: "))7 K. @. z. b7 W) _0 R1 I0 K
- (initget 3) ; cf 必须非零、非空
2 N2 r+ ^# a ?0 @! ^6 x/ [ - (setq vertGrw (getdist "
: t* R( F; v. ~3 T j - 每一圈的垂直增长距离: "))$ c" f V& J& ]. c
- (initget 6) ; ptCntPerCircle 必须非零、不可忽略
$ m' A0 ~$ e% m& x - (setq ptCntPerCircle (getint "
" U$ L& T/ n8 V' O" x - 每一圈的插值点数<35>: "))
3 e1 A, U7 j2 U3 Y( x, I - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) 0 s* {4 y1 W) A* T! V, b4 e6 W! p
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
) R4 m# U# { a9 l% B - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值' ?7 W, ^/ [: K! T5 ] d
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
% Q( Z Y& j8 e - (setq *error* olderror) ; Restore old *error* handler
) a, j8 ?& I' I# ^) p/ X( \( N - (princ)
. X5 j' Z6 C) m' ? - # l" X( ~6 ?( M& m% P* k
- )
: k' a; X5 g4 p4 n( f$ S
|
发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
