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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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：) [0 O: u0 D* n/ X* z m9 t& I
一、齿轮轮齿渐开渐开线
4 x' Z* l% _5 I/ S) L+ T# |. i1 V- + S9 w% a4 E4 |% I3 G
- (defun c:gear(/)
! C" {, W6 }5 Y8 z - (7 R% N8 h+ i6 v6 L( ~. ]# Y
- setq* ^0 u% S# ]4 g/ l1 g$ c i5 Q
- p0 (getpoint"输入齿轮中心p0: ")" Z! V! K/ }! b4 f1 N
- m (getreal"输入齿轮模数M: ")
2 r: I; a4 b8 I/ G; J - z (getint"输入齿轮齿数Z: ")/ |8 c5 z( H" X; Q
- ha 16 k4 m1 g5 k) Q+ x7 F
- c 0.25
+ t: P4 ~+ Y$ Q* ~# S+ } - a (/ pi 9)0 b0 R7 e. Y7 B; `- n
- ra(/ (* (+ z (+ ha ha)) m) 2)8 Z) w0 s- [4 j8 m, y
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)
9 p5 N1 s! ?! A6 g2 z/ J' { - r(/ ( * m z) 2)
- [$ |7 o2 w8 K* @, i- @ - rb ( * r (cos a))3 X6 U7 z: r/ o; B2 I
- ri rb) b6 V+ v; Y& H2 w7 Q( T! H
- ang 0* |/ Q& N+ x6 W& I' \ z
- g (polar p0 ang rb)/ T( \0 h% ^2 h( Y$ q
- )
% f& ^6 e" G1 p7 ] - (command "circle" p0 ra)8 ~( S6 n+ M* O! _# a2 |5 U
- (command "circle" p0 rf)
& d$ F9 ~# r* n, P. h! Y+ ^0 g7 w - (command "circle" p0 r)
/ t0 @# z6 O& g( K2 _1 F - (command "line" g)
7 J$ z: U/ J( \* i0 r( l -
' U2 K5 z2 h# x. o d - (while (< ri ra)- c( E/ V( d# E3 ^$ P
- (setq$ U/ e# a+ L# f/ p
- ang ( + ang(/ pi 360))" [* V7 c$ J: a, M! c* O, B
- ri ( / rb (cos ang)) }+ g, R* E8 g) d4 m* _
- cta ( - (/ (sin ang) (cos ang)) ang)
}2 z' d% s2 }$ [9 S - g(polar p0 cta ri)' V2 ~7 q5 @+ q% `3 r4 g
- )8 |2 z; T; [8 P* C6 h# r5 C, r5 y0 Z
2 ~0 F( F" N0 r3 K" T1 f- (command g)( F5 J1 t, @9 |) o
- )' E8 V4 y1 z5 T$ k9 m& J* x
- (command )
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, m1 o' F. @+ U- ~二、螺旋源程序
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- (defun errMsg (s)
4 Z( h$ |" y# ? - (if (/= s "function cancelled") (princ (strcat "
* e8 y+ [; K' t/ w2 y! S - Error: " s)))" |+ `! k( _8 R/ A
- ; 当命令执行时出现错误$ D( g7 u9 ]3 i9 d g- ]
- (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C
) k% O+ p% L7 M/ y! z - (setvar "osmode" osmold)% \* `8 l @6 D
- (setq *error* olderr) ; 恢复旧的错误处理
: \2 c- U8 h9 n5 B - (princ)
2 }3 O! E" ~8 w$ f: _) [2 z$ V4 [ - )
- P4 l" Z1 i; Q4 c/ t
% s/ v5 [4 S4 s1 |& ] E, i- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle
1 U, Q/ o5 |) I, Z2 K - ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
* D: h% r4 z: b! x0 V0 | - ;-------------------------------------------------------------------/ Y* P& s' l9 L, y
- ; 获取公制外径大小、螺距总长$ r, L6 |8 D' U* l
- ; 然后计算一系列几何点
9 o) Q; |8 a" }& Z" F$ \+ N - ; 并且关闭对象捕捉、命令回显3 S) m+ x% W# ]- S9 ?0 G' C$ s
- ;-------------------------------------------------------------------
6 E; f$ S! _! A. Z - (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 h _* K" u8 G/ n7 B - (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)) ; p" v( Q u( Z( p1 h
- (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)) , u( Z- |6 E# Y" t. R; p1 Y5 \
- (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 ?2 \3 R7 a \2 J, t5 H6 g - (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))
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; q) K% }! }$ e4 I( ]- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
) G6 x- U; g2 u. `; L% \0 W' \* i - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值9 L3 `' P6 Y3 N
- (setvar "osmode" 0) ; 关闭对象捕捉 - l6 |4 g T8 z, G
- (setvar "cmdecho" 0) ; 关闭命令的回显
; {) G. W+ R5 X6 t \
! i! }' A, q& |- (setq innerdiafactor 1.5) ; 设置内径系数! y" E) n! L# ~+ w) n
- (initget 7) ; radmid 必须非零、非空、非负
* V( z3 s( r/ p( p8 n, I* W2 G r - (setq radmid (getdist " V/ `) T; \$ f( V
- 公制外径: "))8 S4 V5 c Q- |7 b9 v
- (initget 7) ; threadpitch 必须非零、非空、非负! O4 O4 H; Z- {
- (setq threadpitch (getreal "+ X% S7 M5 D" Y: |- ~. i
- 螺距: ")); h1 b; `; b4 s+ p& _
- (initget 1) ; ptStart 必须非空( z2 u L5 ^% N5 W8 m6 I# I9 L& {
- (setq ptStart (getpoint "
, J8 p! K) h8 ]! ~# Y: P' n - 起始点: "))
& S% j9 U! U& @. V# t& X0 j; g - (initget 3) ; threadlength 必须非零、非空、非负4 {/ O v( }" I6 ^( m' l
- (setq threadlength (getdist "+ k" z7 h- W" X) h
- 螺纹总长(Y方向): "))4 K3 n; T$ k8 @( z3 \* Z
- ; K% [3 b: u4 j
- ; 对公制外径添加公差
0 A6 U- ~% H5 y- i+ E - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置, I- c5 F5 y" p) [4 B Z) K7 j
- (if (<= radmid 6) (setq order 1)
: _" n" a5 k+ t, ~3 N - (if (<= radmid 10) (setq order 2). C+ f5 m: r/ M @/ l
- (if (<= radmid 18) (setq order 3)
e- q# p U; Y- H7 L" | - (if (<= radmid 30) (setq order 4)
% ?% b: j ~8 P; H - (if (<= radmid 50) (setq order 5)
, \* M& j" T6 v% P6 g - (if (<= radmid 80) (setq order 6)) q D* g( M% z' V3 y& A5 E
- (if (<= radmid 120) (setq order 7)( g0 @( |5 ~1 z" q
- (if (<= radmid 180) (setq order 8)
% e& ~6 v5 R5 T+ ^3 H# t - (if (<= radmid 250) (setq order 9)
( W, A+ S1 T: V7 Q6 y6 w& S* V# r( d - (if (<= radmid 315) (setq order 10)" j6 f9 [: H& d* `, L+ j7 A
- (if (<= radmid 400) (setq order 11)( z/ _1 [7 \, W' K+ ]
- (if (<= radmid 500) (setq order 12)
# _9 }' H1 U( m4 h% e _ - )))))))))))))& o$ p, X' ~' V
- 3 D4 T$ D( ]$ @# s) C( t
- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
0 |( ^+ I! _& X3 Y5 \+ Z) e) ? - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
, f: c8 h2 Y/ M5 D$ r! Z9 d8 [ - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
% K3 i" D3 ~% p1 ~- |8 S5 T) z9 ? - )))1 D) }9 G, Z# z: b' f- Y: f; E4 v
-
, F; ~; I: M A1 B( n - (setq h (* 0.866025 threadpitch)) ; 计算齿高! k- l" T3 i( r" ?
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
. }& ^/ M, C# p& r - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径- F, r' J7 ~- c, w" S; t
- (setq threadangle (+ 30 0)) ; 计算齿顶角
) h! t7 `3 n' v8 [+ [- D+ L) L. b - . L8 }. ?# _0 g" S3 i9 Q$ j
- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数, p" L# X1 i9 A& v& b& @3 B6 t
- - u/ N% d& s6 v. ~# @+ s
- (princ "
4 X+ n& n# C1 y8 m - 三维螺纹创建完成")
+ J; O( W/ C2 I. A, v - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值' `) p8 e( u: W; h" ~
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
& {' c- K: b8 @! B* s - (princ)
- O @* b% [4 P: ?; V - )- B" n/ I- W u
- 8 ?8 L: ^( R% R
- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
: K. V/ p& e5 y7 \% x# { - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)# J; o$ i) x' Y3 u
. B- p2 p- v# X! ?- ;(command "undo" "begin") ; 开始undo步骤1 v2 V) x, L! e% s5 ?+ c/ B p
- 4 E- X, s+ k2 u+ L
- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)
* ~* Z7 v; j4 j9 {( O$ \ - pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
/ J* k: @; T6 A$ b - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
1 \; Q4 j* B8 Y, n - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)1 C0 D1 S/ s+ ~8 y1 ~" u3 d
- pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))) w+ Q B0 E, @4 M! ]
- ang (angle pttmp1 pttmp3)$ L, F6 t% U& ]7 d4 ~
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
& ` ~. ^+ o. t% e# N# E E - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0)); ?9 x5 c0 D7 R2 n1 k. x* M
- pt3a (polar pt1a ang radouter)! b% ^& ]" G) H! D5 Y
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
4 _7 e( h- L5 L - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0)). H4 f7 F6 r) v( e) o7 ~
- pt3b (polar pt1b ang radouter)
. H$ T k& A! K: E9 m/ } - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
4 O4 } t" V3 K - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
4 M: \( N% y0 ]( W1 l; Y - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))$ a. c7 L/ x# k7 h3 b5 M8 p
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
+ i* d9 l% x( c, S' K ? - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
\' ~& {$ C6 ?4 N! o9 p8 H8 M - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
0 E( e7 t4 _1 C& [$ b - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))3 j9 b" B3 j N7 Q
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch)2 ~0 i$ A+ r$ ?& W; s
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))8 O5 H; K" \6 S7 u
- )
+ O7 ?+ M1 v( Q
* l6 H% s5 }0 \0 G( C$ j1 h' u- ;-------------------------------------------------------------------
" U3 P8 u! D; H* w) j& Y - ; 绘制两个倒置的并偏移1/2螺距的圆锥
. t- g8 F/ C. {7 @# ^ - ; 这两个圆锥都以中剖面剖分
# t$ k, S: a$ @1 e1 A3 Z$ O - ; 进行并集运算 o) S3 Z; o' E: }- a( C- w
- ;-------------------------------------------------------------------
% p" L) y" v# P( E - 4 P1 ]6 \* o2 e" F: m a' ~
- (SETQ startcone "order")
1 }! I# K" ?' c$ s7 _7 B9 \/ T+ Q( K - (SETQ endcone "Y")
8 x- k1 t0 @7 k* j& c# f - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)1 Y% o" |9 j! @& U
- . N6 h2 u% e5 B1 \
- (princ "* x& v0 N! V y7 L
- 正在绘制三维螺纹，请等待")
[% j" D5 c+ |8 }" N |) h - (command "pline" pttmp1 pttmp5 pttmp6 "c"), F* f$ T- f X Z9 x
- (command "revolve" "l" "" pttmp5 pttmp6 "")1 {; e+ G3 C) t( M, C& _* }5 U6 p0 E$ @( j
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)6 K' x/ y7 c- F2 U
- (command "slice" "l" "" pt1a pt3a pt1az pttmp3)% `; k" x) p7 l; P& \5 L$ h
- (setq tstmp (ssadd (entlast)))
" r% R& k6 T' o& \, C4 W - (command "pline" pttmp3 pttmp9 pttmp10 "c")
, j' M5 s: O; X1 P# R% u - (command "revolve" "l" "" pttmp9 pttmp10 "")! M/ M) O2 c% \
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)& W( X6 e$ O* e0 @
- (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)8 |" W# i& ~" F3 E1 [0 y
- (setq tstmp (ssadd (entlast) tstmp))6 O, f# S' V% w& k4 O
- (command "union" tstmp "")- h0 W9 g4 v! V5 J
- ) f$ s3 }& a' ?8 I! [% z D2 ^
- ;-------------------------------------------------------------------, o! w1 p1 m7 d8 s" s( c; 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2 A' j: w8 A0 E$ j! |
- ; 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% W* U. \ g) S' \9 U
- ; 在最后一步被切除6 ~, M8 R2 F R* V# {$ e- ^
- ;-------------------------------------------------------------------
% W7 P' p, C3 K ], C9 [
3 W) A+ z! j, r- _$ g- (command "slice" tstmp "" "xy" ptStart "b")
6 x) E5 C& Q+ E5 ]& u# G+ L - (setq tstmp (ssadd (entlast) tstmp))
" ^- O0 X) W4 \8 g) R, W - (command "mirror" "l" "" pttmp1 "@10<0" "y")4 N) w5 O$ L% ~1 }% n' M1 {; U
- (command "union" tstmp "")
/ d( v, a( a/ S7 Z1 I) H5 H$ d - 7 j; r3 F2 G' u% `/ I1 J: z& R
- ;-------------------------------------------------------------------& ?: g7 Y1 ?/ x d) Q
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）% C& K. _% H# X
- ; 得到的实体再切除到指定的螺旋高度
! G, V9 u- ~) |/ |6 D+ v( s - ;-------------------------------------------------------------------
% \! _, m+ \+ ~" x
5 D$ s6 I* q z3 ?( V- (setq e (entlast))5 `5 u/ l# R0 m) R
- (command "array" tstmp "" "r" ttal 1 threadpitch)
/ O2 y5 k" X- @+ u- Y' m4 Q - (repeat (1- ttal); l% i* P& `, s+ h) o2 F) [) h1 }
- (setq e (entnext e)
! {& Z, M0 `4 |6 |$ h0 X' o - tstmp (ssadd e tstmp)( {, r% J5 `5 P1 p4 P* a' @/ d
- )6 ]0 C) |# ^$ a
- )' @. L! K. e6 X* f# e
- (command "union" tstmp "")
0 t7 G9 `* n2 l- y) @% _7 @
) d; g; ]. a n$ T. p. W/ n% f6 l- ; 若开始创建45度的圆锥$ N+ O b- F* c1 L) `& Q( y
- (if (/= startcone "order")
7 g7 D' v9 X' f7 v+ G+ }# ^ - (progn (setq e (entlast))
: Z$ @5 @3 `6 w0 V- O) L - (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))
; K5 i9 q4 t& K1 p% s - (command "union" "l" e "")
# Q9 c- k' |0 {1 N: e( c* M% e - )3 V' m* n! |, r( g
- )+ O) f1 M0 F1 T8 ?7 ~6 P% |: G
- ' `3 n a, B t1 d
- (command "slice" "l" "" "zx" pttmp11 pttmp12)
. F: d3 y8 D) X/ }; c" R9 C - (command "slice" "l" "" "zx" pttmp12 pttmp11)
9 ~; o, M' Y+ |4 D" O; ` - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart)))
?/ p) c5 m3 Z! g1 P m6 w
) q$ u: h' r! H6 ^ _" N- ; 创建最小直径的圆柱体，然后与螺旋作交集
' O' V; L c1 W - (setq e (entlast))7 h, S$ I! H/ \* s: R# M; i& u
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
$ }7 ^! ]: m. e* _7 p - (command "union" "l" e "")
) P: G: h. m1 E2 f* i, m$ b( X - (setq tstmp (entlast))
5 R h# k8 I$ N0 ^7 V; d - 5 @0 X: b! g( m" ~2 {/ r5 _
- ; 创建中空的圆柱体
$ z$ a3 U7 t2 H+ F% Y" x7 l - (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia6 J! I' M& a- w" W" Y
- (setq e (entlast))
- ]- K- M7 _- I! ?3 y) H
$ _0 D' y/ a- O4 Y1 k) h! y: @- ; 若最后创建45度的圆锥; l k! e. s/ X0 ^
- (if (/= endcone "order")
& w0 u7 D5 d, K" | - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) 7 Q4 Q M- m8 p! ^: W3 i
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
- G t" j7 O2 I2 T/ F+ u - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))- j" ~0 x6 ]: e$ D5 E6 o6 |9 a
- (command "union" "l" e "") 9 M* N1 y6 Y* d9 q5 q, o+ C% ^
- (setq e (entlast))- ^- f2 W Q/ I. Q/ e7 {# e
- )
% R/ L: N0 W' ~* [& B - )
% h. e7 A$ a9 l$ T( Y - : o X6 x9 r# m4 B8 _
- ; 从大圆柱中减去小直径圆柱6 M' t; |$ [0 h1 }# R* ]
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))/ g0 s8 S; N. |2 U
- (command "subtract" "l" "" e "")$ Z: f8 Q0 c& X I
- (setq e (entlast)). o& S% P$ b: D# f+ J* P7 U l
- $ |+ ^' `1 l$ k! I5 h7 N
- ; 从螺旋中减去圆柱6 N. ]! r: A( C
- (command "subtract" tstmp "" e "")
% G% k7 I) ?) W" l* f - , R" m L0 D$ g- I' A" y. B+ X" l! ?
- ; 如果螺旋长度为负然后镜像
D" G+ _7 d: [( N - (setq e (entlast))
8 y K3 ~% d) l. _& x& a* F3 O - (if (< threadlength 0) (mirror3d e "zx" ptStart "y")) J5 W5 L l K3 F/ I( ^
q* J' x/ Y; c7 h) A" c6 N- (command "zoom" "p")
1 ~$ ~; u6 m. ?. E - ; (command "undo" "end") ; 结束undo步骤7 ~6 \5 K2 b! t+ w, u
- )
: ?4 ?! ?+ w) L/ g: g$ g& Y" J
! g I+ G- p- _. n0 y) i- ;;;---------------------------------------------------------------------------------------------------------------------;% Z' i4 v* k+ w6 h" ]
- (arxload "geom3d" nil)3 C0 J+ U, l" L( X& D
- (princ "
/ c: _5 D3 _/ s- s D$ Z, V - 3DThread 已加载。 ")
7 t7 J. ~% X) L6 U) n2 P5 m1 f - (princ)
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三、弹簧源程序
) M& y* a; k4 @- (defun errMsg (s) ; 当命令执行时出现错误 . K% Y' ]. L, \8 W
- ; 例如用户按下了CTRL + C
! I7 F e0 D7 \, S4 N( l5 ] - (if (/= s "Function cancelled")
1 E- K/ ^- L5 _ m O - (princ (strcat "
) i* g, |' d8 |2 C - Error: " s))
$ J* z1 w5 c# F6 N: U0 F. g - ), ]; h' }$ d7 {" m
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值+ o7 U$ u4 K* C
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
$ `7 N' v+ g B& V0 w4 I! M# i - (setq *error* olderror) ; 恢复旧的错误处理
- C Y! N" i7 j+ m - (princ)" f2 o; o& R% I& t8 {
- )
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8 l% F% ^; ~. q) y {8 ]$ V2 C) W- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
! [; F1 }( r# @" w+ g8 i) a# a - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
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- (setvar "blipmode" 0) ; 关闭 blipmode * k9 `: t K" X1 q7 U& f" e
- (setvar "cmdecho" 0) ; 关闭 cmdecho
6 H/ r2 M! o( K - (setq Pi2 (* 3.14159265 2))
2 [/ Z& e+ Z( O7 s+ f+ ] - (setq aGrw (/ Pi2 lr))3 @6 P/ z G6 K! u3 ?! V
- (setq dhGrw (/ bhfac lr))
. b" R1 W; N) g: M3 W! N+ T - (if bvfac (setq dvGrw (/ bvfac lr)))
4 D( a0 s; c9 L - (setq angle 0.0)3 ?+ r1 |( Y1 {6 l
- (if bvfac7 G/ f: d7 |' `0 s8 N3 X5 L
- (setq distnc strad dv 0.0)# S1 `' n: s' r% O$ Y; Z7 c5 v
- (setq distnc 0.0)* r( w7 _& q- `
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" Z" P; d9 {0 p& u& c3 c) t - (if bvfac
' p) ?8 Z: |: a& e5 h. }& o - (command "3dpoly") ; 开始绘制弹簧. X' M0 c6 |( t5 i- E
- (command "pline" cntPoint) ; 从基点开始绘制弹簧6 k! @* g: M" @: Y3 g' b/ H
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9 k# a9 m* r! U3 }1 s& @% b - (repeat nRepeat & _+ g# j- `+ Q; K( `- J
- (repeat lr - p0 v- W, v$ Y- x3 x8 J4 |
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))5 a$ O2 Z6 @% q$ O$ X; l
- (setq distnc (+ distnc dhGrw))
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- )
2 h2 Y! K9 _" h' j/ k8 F - (if bvfac1 W8 N6 J. k D* L1 B2 k. m
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))! j' O$ z w9 v0 H! J' O+ J; P2 ]5 J
- dv (+ dv dvGrw)
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- )
5 k( J. P+ e2 a - (command tp) ; 继续输入下一点
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4 R# B7 j' T8 Y( k - (command "") ; 输入结束
& f5 l7 H* L" z' Z5 [/ T5 z - (princ)$ M" r" B h% S& H
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. z8 F* b1 J2 t1 f) ^: m- ;;;
4 e% q7 L" M* ?: { - ;;; 生成三维弹簧函数调用接口1 N4 k; j; _ g* P, Z
- ;;;
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" ^; Y! V. K$ z$ _0 z, r- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
; x5 y. p/ H/ \7 h - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
* V* k) T" p0 y _9 l1 H, e - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复0 k6 d& w; B' R g" }
- (setvar "cmdecho" 0) ; 关闭 cmdecho + p" {1 V" I1 u* Z" }
- (initget 1) ; cntPt 必须非空
( ]5 l( E1 X3 j; n - (setq cntPt (getpoint "
* e# ^" o1 `" x; b/ A - 请输入底部中心点: "))
5 z$ {& A& o1 |% t - (initget 7) ; RottCnt 必须非零、非空,不可忽略 j2 j3 W, t( l+ ^; y; a
- (setq RottCnt (getint "
5 V/ M- _8 R$ g% H+ P& O$ w( e' v - 旋转的圈数: "))5 B2 V# I. X- E( X# E0 K |6 z h
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
& Y- _4 R( K+ ] - (setq bgnRdtn (getdist cntPt "
( ^/ s) [, I1 w4 C - 起始半径: "))
# A- t" f7 Z9 l& e - (initget 1) ; cf 必须非零、非空
1 m0 e+ C" o, Z: E - (setq horiGrw (getdist "5 a% \1 R' {& s( L
- 每一圈的水平增长距离: "))
( o5 P; }" J+ G( Z" r/ |( E& E - (initget 3) ; cf 必须非零、非空
+ r$ m2 z, z0 e, {$ V4 ^6 b - (setq vertGrw (getdist "5 b q0 V5 I h7 F2 j$ U+ |0 Z
- 每一圈的垂直增长距离: "))
: L) j+ k$ Q/ W4 w I - (initget 6) ; ptCntPerCircle 必须非零、不可忽略* [4 c0 `' o/ M/ m0 }3 Y- u
- (setq ptCntPerCircle (getint "
4 B! e9 V) A9 T& |0 L - 每一圈的插值点数<35>: "))' T: A/ I( e7 N* _& ?
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
7 t+ J% n1 _6 r0 k$ h6 u1 ?' i6 P - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
# j+ M' z8 \) ]/ b8 S - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值2 q; R1 A( S% M2 c; M- U5 O
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
* ]$ Y0 F) D& O, L( N, E. K - (setq *error* olderror) ; Restore old *error* handler
& [1 ~8 e2 m" l: m4 K4 z - (princ)& C& B/ V7 {) [
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- )
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
