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：
( @ c& q( w4 w3 }7 @一、齿轮轮齿渐开渐开线
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- (defun c:gear(/)
/ Y! Q9 P* L q y' {7 I3 R! z - (
Q& `! F" F8 R+ [9 a - setq' j) l# n! ~9 p1 R6 C% _
- p0 (getpoint"输入齿轮中心p0: ")
$ F/ V, Z& B$ t8 N+ s - m (getreal"输入齿轮模数M: ")
- w. D9 v. _- O7 {0 A/ X o: Q - z (getint"输入齿轮齿数Z: ")
% t3 A& g% s. }. N - ha 1: T: P6 H) k/ W
- c 0.25
1 Q5 e0 {* Z7 c: u" a/ v4 j/ Q - a (/ pi 9)
2 O. q. Q0 X( W5 |; G# N4 M. T; |. o - ra(/ (* (+ z (+ ha ha)) m) 2)4 H0 h7 }. h$ U S8 W- ~2 s; L1 b4 i
- rf(/ (* (- z (+ (+ ha ha) c)) m) 2)2 ?$ I* q0 N6 I# D& P
- r(/ ( * m z) 2)9 k( J5 `, J/ A- \+ Z' C. O O8 Q# X
- rb ( * r (cos a))
7 v9 C; q4 f+ k& } - ri rb/ b+ L5 {/ {. l+ n0 B
- ang 0* v& v H* Y* X( l( g' V7 D! p
- g (polar p0 ang rb)
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! G% X+ ?/ \" ?, l, F - (command "circle" p0 ra)' Q8 J H$ \+ z1 h4 Q
- (command "circle" p0 rf)
f, ~6 S! W+ _9 |; W8 p5 J$ } - (command "circle" p0 r)5 z. A( I3 H) g& G
- (command "line" g)7 L- k) u+ C+ e7 A* N r0 b
- 4 j4 G1 c" k& D1 s: l: g3 v8 d# {6 B9 E, p
- (while (< ri ra)
& k& K2 o; }7 s8 A - (setq
, @2 Q! [0 a) v" i: }- U) v0 I% | - ang ( + ang(/ pi 360))
0 T" w0 i, B' r) I* m2 G* m - ri ( / rb (cos ang))
& c" O! b, C) b8 ~2 x* t+ P _4 C - cta ( - (/ (sin ang) (cos ang)) ang), e+ O& Y/ |8 Y% N0 Q, K$ }
- g(polar p0 cta ri)8 j: b/ K0 Z) C) P( b
- )
1 k$ I9 N( k" E9 \/ ^
! o2 x5 {0 ?, R& A- (command g)
7 D0 H& ?7 b( e) x. V4 ]7 [ - )0 U& k. f9 M3 g$ G A
- (command )
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1 T S z* o; K: U9 \+ `二、螺旋源程序9 N" v7 U K2 D h
0 A" `& `' i# h1 b- (defun errMsg (s)
& E4 m& U! N& D; x, i - (if (/= s "function cancelled") (princ (strcat "
* T9 x1 \) j9 Y( N. D - Error: " s)))
4 {& ^8 c/ J" t: f( o+ L) E' C - ; 当命令执行时出现错误0 y3 W3 F5 E7 Z6 ]0 N& J% {
- (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C# T$ b8 B8 g b& C+ k0 r
- (setvar "osmode" osmold)- F* A% X5 j- J. [ ]' Z2 }8 u
- (setq *error* olderr) ; 恢复旧的错误处理0 H* E1 X5 J/ r) z# a
- (princ)
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; N% I" k% W$ \ - ( r) l0 R) Q" X" X1 m" e1 W5 m/ M7 x6 n
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle 1 I' \8 `* S8 K& ~, J, r5 }3 w. E
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)
( }& Z! v! U8 O - ;-------------------------------------------------------------------5 l1 ?* c* W/ y9 X* `7 Q' l
- ; 获取公制外径大小、螺距总长' R* R8 H$ C' C' E% L9 e. T0 ~
- ; 然后计算一系列几何点# j6 x( A3 ^6 ?+ T( `, u6 a
- ; 并且关闭对象捕捉、命令回显* ?& k. y3 C" G4 H
- ;-------------------------------------------------------------------
) t2 @0 b0 {. p* r$ l+ L2 S - (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))
7 G0 H3 r. Q+ o% K: Q2 E: s& j1 \/ 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))
' @% c. G; V+ P2 X3 w - (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)) $ t1 E3 J$ D7 f8 D
- (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))
% I/ j) c. u7 t# | - (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)) 5 t; m/ `6 W3 P% b
- 3 S& g5 @' f+ @! Y8 ?
- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值9 b9 e, S3 n; ^2 X' b. I. e4 f1 N
- (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值
7 C' r- z. D6 e, V - (setvar "osmode" 0) ; 关闭对象捕捉 # z& P2 v) @7 z2 R# u* w
- (setvar "cmdecho" 0) ; 关闭命令的回显" u; Y3 h& g& K" f+ W
- 1 Q8 y& S" b0 L) T1 r- K
- (setq innerdiafactor 1.5) ; 设置内径系数) N9 b# b# p: o" f( `* z4 @4 j
- (initget 7) ; radmid 必须非零、非空、非负
5 F5 W: C# t7 W. X+ y5 Z - (setq radmid (getdist "/ W2 c; M2 W5 {8 a) Q2 t* i
- 公制外径: "))
! ?6 Y! R {& ~( W- `) X5 h - (initget 7) ; threadpitch 必须非零、非空、非负
! V p6 c) [' S% @) L5 J - (setq threadpitch (getreal "; k N0 [; r$ }- I# t' g
- 螺距: "))
( h' m% m) u# } - (initget 1) ; ptStart 必须非空
) v, E" c& [ h$ G# |8 z- A1 r - (setq ptStart (getpoint "" Y4 S0 T' }/ E3 I1 i
- 起始点: "))
8 A- ]: P) l. I& | - (initget 3) ; threadlength 必须非零、非空、非负9 p% m* j2 c6 b' H/ c$ `# @
- (setq threadlength (getdist "" h' T! w, W W1 m
- 螺纹总长(Y方向): "))1 I8 N1 w d# p( ?" H% R
) C. ]" ~9 l0 w, d9 x$ [- ; 对公制外径添加公差
9 F5 t: U' \8 l2 a- Q6 x - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置
6 ^. G. z+ C. R+ p - (if (<= radmid 6) (setq order 1)" N8 l8 A; L+ Z' Y
- (if (<= radmid 10) (setq order 2)
% l8 O* h) u* \& y0 a - (if (<= radmid 18) (setq order 3)% \& a8 K6 v; d; p. d5 j2 H6 o
- (if (<= radmid 30) (setq order 4)
" ]" f8 n+ Y+ \) i - (if (<= radmid 50) (setq order 5)
, V( y& [% T# J; ~2 I - (if (<= radmid 80) (setq order 6)
7 O' F5 w. J, W/ M3 c6 b. H - (if (<= radmid 120) (setq order 7)! I- B$ [- |* D/ o8 O4 H* z- v/ W5 Z
- (if (<= radmid 180) (setq order 8)
/ P$ u7 O; t! \" T( M6 } - (if (<= radmid 250) (setq order 9)
1 V% [/ Q9 B9 S4 H1 j - (if (<= radmid 315) (setq order 10), x) \4 T, J* P$ a5 T4 z
- (if (<= radmid 400) (setq order 11)
/ X* ]- C7 h: v3 V q - (if (<= radmid 500) (setq order 12)
- \2 B- a3 O! e' f - ))))))))))))). D" X- O( f4 ~
: X j' m1 r3 {% ^- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带# Z8 v: P, D) I2 O
- (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))
Z, k0 E$ a4 d4 \* V - (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))
0 ]) r; e! z6 R3 _4 r6 `7 s+ I - )))
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- (setq h (* 0.866025 threadpitch)) ; 计算齿高 C6 L2 G. K7 B2 w2 i2 m+ a
- (setq radouter (+ radmid (/ h 4))) ; 计算外径
: l; s+ i$ C. p; g* u7 S - (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径- S7 q( R. @9 W' N& M/ b
- (setq threadangle (+ 30 0)) ; 计算齿顶角
# D6 f+ b; l+ F+ E2 m) n, D" |* n
8 Q( X* M( H. h; J: L! N' ]+ V- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数
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# t+ L! @3 c9 M; ~; Z2 l; i+ t3 u+ U- (princ "
2 `' ~7 n0 k. x2 U+ }4 C* H - 三维螺纹创建完成")
' U% l" H3 q0 r - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值
# M3 x* M/ _% v8 h5 y+ j7 @6 @: H - (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值! ?+ }" U. P! b* n- ~$ M: [
- (princ)" p5 g6 }3 r [0 E" D) V
- )
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" m9 X4 X3 E( o* X5 u0 j% ` ?- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
4 P# m9 `$ v% c' h- z& S! e( q - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
% Y& j+ F2 W/ s3 q' s - . U7 L. K1 j3 |& b' _
- ;(command "undo" "begin") ; 开始undo步骤
# A* s- l5 W6 {9 K3 U u
3 W8 d6 H) c( L+ ~1 p9 p/ _- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)) @8 K; a- I, c
- pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))
) N" G2 |( I+ `3 U$ L - pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0)) B3 n. j$ L- f# Y+ X
- pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
" s! T& C5 a( W1 S, J1 ^ - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
3 b2 Z( B) e T" E - ang (angle pttmp1 pttmp3)
# c! W& h# f* M8 E - pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
# |0 p% B' z/ C# f5 ~. A% g - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
5 y% C# `7 z# F1 e( ]+ O' L, M - pt3a (polar pt1a ang radouter)7 M/ H' e4 T' M
- pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
4 T) Y* D1 q _0 A q* Q+ D - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))
" O0 N) _6 Z0 V% G( S R - pt3b (polar pt1b ang radouter)/ m2 P! S2 _0 i
- pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
+ y0 ?0 t+ h/ c9 o/ h$ {/ R$ V - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)
3 o: \. B3 W: [" m y1 ~5 k( Y - pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart)). E" {/ X9 g- L# r! h3 p7 ?
- pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)
( Y0 {* a! p9 m, O* R" q( a% e - pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
4 J( M2 [7 H/ A; }: I - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
2 L- s( J' A% s6 e/ N - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3)), P# S& u& K4 j7 c; A% c
- pttmp11 (polar ptStart (/ pi 2.0) threadpitch)7 ]# Y$ Q# p) n( z; z. B
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))
" s2 C# Y2 M9 \5 i. X - ). ?2 X6 G' ] _: }& O
- 2 @9 k- U- R& K7 p0 ]/ I4 v3 J
- ;-------------------------------------------------------------------
# D# D" x" I/ ]5 U2 f - ; 绘制两个倒置的并偏移1/2螺距的圆锥
$ ]; D! F, X t" Y U - ; 这两个圆锥都以中剖面剖分
# |+ }( r% S, U5 Y! R - ; 进行并集运算
( o6 @% i- T* [4 K0 M - ;-------------------------------------------------------------------' M3 B# S) t! s
- C9 h, L. F' o: V. z+ g' Y$ I
- (SETQ startcone "order") _4 Q8 [" Z9 r+ m I# I
- (SETQ endcone "Y")
1 [* j$ t3 H$ R n - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)7 z! R5 `* E+ r7 z: @
5 H& d+ J4 D0 z; j4 h; [- (princ "
8 T! B% @* I: X7 [ - 正在绘制三维螺纹，请等待")2 _& w$ ?4 M J
- (command "pline" pttmp1 pttmp5 pttmp6 "c")/ \5 l6 H2 r! i4 N2 t+ o
- (command "revolve" "l" "" pttmp5 pttmp6 "")8 ~$ i- s' n4 F$ [% L' s4 E
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
( E2 W. Q# k' x- V; s - (command "slice" "l" "" pt1a pt3a pt1az pttmp3); S+ W1 l4 }" O+ h
- (setq tstmp (ssadd (entlast)))/ p" G! l# F. J7 q7 H
- (command "pline" pttmp3 pttmp9 pttmp10 "c")3 _5 a# F) q9 X) L7 U
- (command "revolve" "l" "" pttmp9 pttmp10 "")
% k! A6 B% l) C/ T, t - (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
$ }2 p- b$ K/ c& ~4 ]) ~( L' B - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)- z+ I% O( r; D" l2 V- w) c$ ~
- (setq tstmp (ssadd (entlast) tstmp))2 r2 Y" }& N8 ^, f% c
- (command "union" tstmp "")
8 M* n% o3 B% \! t' U - 6 E6 t1 u$ q' w0 ~* P! {
- ;-------------------------------------------------------------------
' Z% s- b; _9 A3 [- t6 b! G - ; 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 [7 [8 v- o# q0 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
1 q4 o: j8 j F - ; 在最后一步被切除
" K4 |: |& ?* \( a" ]: p - ;-------------------------------------------------------------------8 B0 U! B' T# a, l4 i* d1 A
- 6 h) m( r: Y$ S/ O" a7 I# V/ k
- (command "slice" tstmp "" "xy" ptStart "b")% ]! n3 U- G9 }8 S$ E0 f- `
- (setq tstmp (ssadd (entlast) tstmp))
" \5 Z b/ o7 s9 K# Q+ [& c+ G - (command "mirror" "l" "" pttmp1 "@10<0" "y")
; I8 o7 ~& K' w - (command "union" tstmp "")
$ i# i1 [. \5 |# {# B$ I2 R6 R - * \# }" ]& ?/ u6 V
- ;-------------------------------------------------------------------( \) N0 ~! \! ^
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间） Y# I/ M% B) d) I8 M5 g2 @
- ; 得到的实体再切除到指定的螺旋高度& W+ o7 C! `. f; x# f0 y, w1 l3 W# H
- ;-------------------------------------------------------------------
, L+ \8 H/ h o4 P5 L - 6 t- e6 a2 a* S* A
- (setq e (entlast))1 n$ O; y1 @+ O& D2 u& v- v
- (command "array" tstmp "" "r" ttal 1 threadpitch)
" H# P2 Y5 c" C G* F" I4 V; s - (repeat (1- ttal)
6 p) k8 Z7 L0 n# T - (setq e (entnext e)
( z# q$ x: C& c* q& U - tstmp (ssadd e tstmp)
1 S0 I7 I# `4 K+ j - )# R$ ?6 _" Y" o8 f; q
- )- N9 _! X' v* Z: h- [8 v2 ~
- (command "union" tstmp "")1 c$ T: I6 J$ I( ]. x& `, r4 W8 w
E2 ]: A9 f$ `3 }! S9 D) Y- ; 若开始创建45度的圆锥
& L- v; S& Z* \3 F' ~3 C - (if (/= startcone "order")2 o) d$ a9 I" Y1 l# g: {
- (progn (setq e (entlast))7 Q' O6 c, n1 k& B+ L
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart))); S2 X$ r* ^9 b' H8 s) H- _% A
- (command "union" "l" e "")
$ u" c1 Q( m2 N/ s9 B7 L( Z+ l - )
1 d/ D8 N1 E% i. q - ); q8 l& E0 [- r6 E: G% U
# e* I+ O8 j3 c$ o0 S+ C3 z- (command "slice" "l" "" "zx" pttmp11 pttmp12)& \ ]) J7 K1 g- P3 k9 r C
- (command "slice" "l" "" "zx" pttmp12 pttmp11)+ O) V" ~5 M3 g" F$ L% W
- (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) & X1 U% t& D. O1 m
- ) O0 z- H8 _* j1 L& d" {# H, N* |
- ; 创建最小直径的圆柱体，然后与螺旋作交集4 `8 G( ~! W* r+ L" y$ i
- (setq e (entlast))+ F" _1 e- M' @$ k) t1 V
- (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
% F* B- J( n3 I; j' x* ? - (command "union" "l" e "")
1 ~% c0 I) e' ]0 p/ k6 C - (setq tstmp (entlast))
( v& v. l" M9 }# b7 V+ Y
v, v( P7 \! S- ; 创建中空的圆柱体
7 w& l' N* @+ C& d% @: p$ k7 |# c& l - (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia
6 q6 ]5 Y( [. v& [& n7 L - (setq e (entlast))" P9 p! V0 J) ?
- # r) f5 }& g" a! p
- ; 若最后创建45度的圆锥/ o, L' C# A9 U2 }7 g2 j% |
- (if (/= endcone "order")
8 u4 x% Q9 K6 h: e - (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart)))
& T! | G! |# ~0 n" z5 l8 [4 q - (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart)))
! A" ?0 h9 Q' L! ~ B" v - (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart)))
4 f2 Y# g& j4 _0 N4 ? - (command "union" "l" e "")
% n8 M' b- S( ?0 `9 Y5 t - (setq e (entlast))
4 W8 f. H8 t& X+ i. _ - )$ {8 ?: m- e! {" M" r* y5 @4 z
- )5 ^* s3 M- B" q: l# ^, e8 ^
+ S2 w0 n0 a6 e: \- ; 从大圆柱中减去小直径圆柱6 o1 ~2 w; l" Q! ]" y0 D* _
- (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))8 N* c1 {- P+ G% X
- (command "subtract" "l" "" e "")1 J- v9 o& [0 J. _
- (setq e (entlast))
( u" c+ f8 f7 m3 m/ F
) [% X4 F& v$ ?4 B* s: s9 C- ; 从螺旋中减去圆柱
) S& [7 P0 u6 }! Q8 F. f; o( L - (command "subtract" tstmp "" e "")
$ Q" l. y2 c6 x2 m/ X
5 K6 G4 q* d8 S7 ^- ; 如果螺旋长度为负然后镜像3 t+ S6 n: Z- O6 Q6 j4 D
- (setq e (entlast))
& p2 u) d- C% V* c" v8 w - (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))* t4 l( \) I# Z( w% }/ N( t3 r2 P
- & t @% N2 N( x* _7 W
- (command "zoom" "p")2 P+ b& a A; p' B- Y
- ; (command "undo" "end") ; 结束undo步骤% E% b* ]7 Q! t3 @7 v E
- )
; o/ O. ^# O% J - 6 Q6 V4 b( K& K4 p! {/ _$ A" N' Q
- ;;;---------------------------------------------------------------------------------------------------------------------;$ I6 R/ i( B/ p# x& w& t0 a/ f0 Y) m
- (arxload "geom3d" nil)
4 l1 L% Y. h# P: ]% v9 } - (princ "
- n$ |; E% @/ }! } - 3DThread 已加载。 ")
, d& ?2 Z5 Z9 X6 P - (princ)
( F2 x9 }3 R! ~3 e5 y
3 {: G5 x$ A$ ]- e& x4 h) F
+ @& k6 e" |0 p* @! X三、弹簧源程序* T; i0 S ^- n- J+ z' H9 Q% `
- (defun errMsg (s) ; 当命令执行时出现错误
" V) t1 |4 @. @# j+ w, g5 \ - ; 例如用户按下了CTRL + C
4 J/ o" M# b" `1 d4 g+ O( n9 a - (if (/= s "Function cancelled")
# H0 q5 X$ q- H3 P - (princ (strcat "4 a7 Q& C! Z" t( ]0 K
- Error: " s))
" I& g( J' w2 i - ), l( L& q4 }% |1 M9 j% i5 x- X
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
- U9 o; {, j, c& c - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值1 _9 Q) J3 z$ _- [+ Y
- (setq *error* olderror) ; 恢复旧的错误处理# V$ G8 w' k7 y7 I- p
- (princ)/ |% q" c) p" j* m. \+ x5 Y: Q% h
- )0 e, G$ e+ G/ I+ e# b
- 7 x k, L% G& `. t
- (defun spring (nRepeat cntPoint bhfac lr strad bvfac- D. Z. Z) S5 h5 l% p ^
- / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
9 { S, x+ X0 m' \% Q' I - 9 @% A0 ?' } x
- (setvar "blipmode" 0) ; 关闭 blipmode ' {5 H6 ^' R5 v
- (setvar "cmdecho" 0) ; 关闭 cmdecho
+ C( o2 D5 k8 G3 r - (setq Pi2 (* 3.14159265 2))
4 l( J' p0 m1 O7 @1 T o# m - (setq aGrw (/ Pi2 lr))
) W' @; k& u R5 K - (setq dhGrw (/ bhfac lr))4 z1 s5 B1 C& ^1 H" G1 x. j
- (if bvfac (setq dvGrw (/ bvfac lr)))) m/ ]( T# H r% ]6 g; d7 `! ^
- (setq angle 0.0)
7 h* }+ i' m3 i- K. N+ @; w - (if bvfac
' k- B6 \; B; m; ]" c, T3 B - (setq distnc strad dv 0.0)5 X& R9 ] K- q9 J( j5 w3 @+ J; b/ s
- (setq distnc 0.0)
2 @7 ]7 J4 ?: d6 x - )$ s8 ?6 o5 J) V% z* o
- (if bvfac
9 R* ^* ^2 f9 h. c" [7 R - (command "3dpoly") ; 开始绘制弹簧
! V7 J Q- [5 K9 j- F) \ - (command "pline" cntPoint) ; 从基点开始绘制弹簧
3 z! Y3 n% {- A7 m% X8 P& u/ ^- v - )
6 L7 F4 D- G4 _. C5 a* E, {! } - (repeat nRepeat
; f4 @' }5 N- i$ A - (repeat lr $ A4 g0 P0 x" ~ w
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))2 v [* z1 X( z, F6 `
- (setq distnc (+ distnc dhGrw))
3 k4 c: N4 W+ i7 W) {! z' N - )
0 P9 S# l) u: I0 n) { - )8 A- `! T0 I" b# \+ F- ?1 Q7 f
- (if bvfac. u1 \6 S( o' P( b
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))# ~' t9 Y ~7 h. o& ~( i
- dv (+ dv dvGrw)4 D/ O/ D0 H7 `4 [5 d* S* J: V
- )2 N4 ^5 S! U5 M5 Q7 r$ E
- )* [7 K5 q P0 u1 w o
- (command tp) ; 继续输入下一点3 v3 n3 k* v4 K
- )
E) s7 Z# m- b$ P) r - ) * Y) e. b |8 w
- (command "") ; 输入结束/ v- Z/ ?5 l: J/ t, b9 G* e
- (princ)
6 _# b7 K U! y4 D* _ - ) # Y* x0 @! E2 v, e/ z$ Y8 }
- # x% {2 I$ A' o: ]0 p
- ;;;$ ^8 F* P" m$ i$ s
- ;;; 生成三维弹簧函数调用接口
: S- B1 R8 R! X6 I& Y* l& m; T - ;;;1 v' t' w2 G7 c
- 1 V+ x; B! D, w' d
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle) ! T3 m D/ [+ u0 D
- (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复8 I* L. t, q% u5 j# D N/ p( C
- (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复
- ^# y( D( l( N. D: a/ d- S8 P - (setvar "cmdecho" 0) ; 关闭 cmdecho 0 D4 y2 ^$ ]3 O$ s
- (initget 1) ; cntPt 必须非空( |* P1 W: x0 U8 g1 y& F7 `
- (setq cntPt (getpoint "7 q! w' N1 {1 z1 A8 F3 _& ]
- 请输入底部中心点: "))
" h, I. D# P- V: M3 @ Y1 B' ^ - (initget 7) ; RottCnt 必须非零、非空,不可忽略
, g3 |+ \, _$ V* P+ k, i - (setq RottCnt (getint "
/ V4 M+ a# l% G/ R - 旋转的圈数: "))
/ ~9 b4 z3 m6 Q4 n M - (initget 7) ; bgnRdtn 必须非零、非空,不可忽略9 y0 k# C( I2 A
- (setq bgnRdtn (getdist cntPt "
: W( G/ b8 s/ O) j, z - 起始半径: "))
) O( d0 k1 S- v$ e6 N1 X - (initget 1) ; cf 必须非零、非空# a% s- }' e: I: S
- (setq horiGrw (getdist "
, t- o( a: d: [; Z9 e0 s2 Y - 每一圈的水平增长距离: "))
# e: k+ H$ N+ D) @0 i; `/ a, u$ B - (initget 3) ; cf 必须非零、非空9 K: M$ N5 e. Y" A- |+ G2 P
- (setq vertGrw (getdist ", O9 x, b# e6 z) p, g6 |9 I
- 每一圈的垂直增长距离: "))
8 P+ N3 }' ?0 K: b - (initget 6) ; ptCntPerCircle 必须非零、不可忽略4 ~* z/ t2 @9 t( N, m
- (setq ptCntPerCircle (getint "* B; C; e g$ I& M
- 每一圈的插值点数<35>: "))
5 C- W! b9 p- ^& S3 G- I! J - (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35)))
. k8 y; N# s0 \" p' E - (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw); R5 T; \; @" I3 ?- z S2 c. Q
- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值# [; F; h% E" y' @
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值
- B3 |8 \# f' H, P- k - (setq *error* olderror) ; Restore old *error* handler" S! T& D( }+ [: Q5 W) h
- (princ)
% d* a4 x. ?: O - . z& Z' L% ?8 @9 |* j/ O2 h
- )
+ [( Q7 @, y0 l
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
