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- g1 z5 c( E# {5 m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：
, _3 C. b) T0 D( x- w4 t% ]4 q/ {一、齿轮轮齿渐开渐开线6 U. x3 N, h L& c& C
7 `/ B! d. z5 e# p! K: N- (defun c:gear(/)* O0 |4 _) y$ ^3 ]5 w" Z3 N! F* j8 W
- (+ E" o" {2 g' n
- setq
: t2 _9 W. j4 X# c5 W$ y7 ~ - p0 (getpoint"输入齿轮中心p0: ")$ [' R0 _/ B7 c% U
- m (getreal"输入齿轮模数M: ")0 i4 i V. }' j/ H1 m5 q1 Z! R" D4 c
- z (getint"输入齿轮齿数Z: ")
+ ~5 b2 s3 `( }' } - ha 1$ J0 g/ k/ I% ~0 A9 @2 g
- c 0.25& `1 t# P! ]2 b! B5 l
- a (/ pi 9)# E9 H1 x; S( {# x
- ra(/ (* (+ z (+ ha ha)) m) 2)
2 ? Q k$ ?/ n( X+ b - rf(/ (* (- z (+ (+ ha ha) c)) m) 2)# R7 z) ^- f8 w* `
- r(/ ( * m z) 2) i9 M* b! M8 @, d; A
- rb ( * r (cos a))
0 H. D# ^ D; s2 b( x - ri rb0 B* `' H: E- p2 j/ C: V( d
- ang 0) x/ K- h0 m) c& i i& Y$ l* h
- g (polar p0 ang rb)5 h" ?' i7 Y/ _" C
- ), ~9 r% ]0 n: ?2 q4 x1 B
- (command "circle" p0 ra): [+ l" [* K) q& m* Z
- (command "circle" p0 rf)
0 e$ ^% r) A( ], { - (command "circle" p0 r)
( S- P3 f1 Q' |- c - (command "line" g)5 `0 W' U5 _! Z- n
- 6 Q) x* @! ?; @3 u( P& z* F
- (while (< ri ra)8 b" j( s# G1 g2 B/ ]
- (setq" p2 h! |/ H6 v- `* F, Q7 ^6 r
- ang ( + ang(/ pi 360))8 r7 f" q% D! f( o- Q# n
- ri ( / rb (cos ang))0 V8 K. F0 ~0 y, c4 ? Q) J
- cta ( - (/ (sin ang) (cos ang)) ang)
8 W- d% V K& J, Q N - g(polar p0 cta ri)5 d* S$ y% ~2 C
- )+ K( {: |7 U5 L- v8 |* F
- 3 y2 L u. J, ]. K9 V$ t
- (command g)
; g6 T; `; t6 z! C. L8 { - )! Z2 d: Q0 i- |
- (command ) v8 t1 \, A# N5 }; |2 @$ l* z( q5 a
- )% A; t- P y* x2 k% d; H( H" O
3 g5 w6 [! K+ I j. p
4 a' f! j* L1 ~
) J: [/ J+ r8 @; g! @9 `$ p二、螺旋源程序! O% k, [ q. n: o
0 P& c- J" {. W, h$ ^/ L
- (defun errMsg (s)
7 s' O& c4 F$ _) S8 E: b' j g5 o - (if (/= s "function cancelled") (princ (strcat "
. w' t/ q8 e0 t8 E - Error: " s)))
( E. k( L; @5 o7 V( e - ; 当命令执行时出现错误
- A4 Q8 E% {* X, j7 ~; v- D/ b - (setvar "cmdecho" ocmdold) ; 例如用户按下了CTRL + C6 t6 t, S2 y) N9 y1 q
- (setvar "osmode" osmold)2 A' S: j4 y& [7 b" L( ]% R- o
- (setq *error* olderr) ; 恢复旧的错误处理/ v' `" V5 [$ f: l+ t
- (princ)
0 }$ E) e' ~5 X9 a8 r6 E& V - )/ ], X# l& Q: n- v/ U$ ?
- 6 m) z% O" e) N' z" j
- (defun c:3Dthread (/ radouter threadpitch threadlength threadangle + y+ Y6 D# ?4 _$ p
- ptStart innerdiafactor radmid radinner ocmdold osmold 4H 5H 6H h6 g6)8 H# B5 V, d; d- b/ B$ \
- ;-------------------------------------------------------------------
7 p0 S/ o# {( X* K2 @ - ; 获取公制外径大小、螺距总长: `5 ~# y7 O' d3 H3 Y7 I* W
- ; 然后计算一系列几何点
7 B2 B4 S& K, r/ s- b" r - ; 并且关闭对象捕捉、命令回显
3 {( H# O: H& W - ;-------------------------------------------------------------------- F& m$ ]- Q; \
- (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)) % ~) V; x7 b6 B+ e! i7 W4 v
- (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)) L! y' A( x% o; ]: f
- (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))
% |; D2 I7 I, E( _# W7 P - (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)) , m9 v4 o: f) M" F- v+ f/ U
- (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)) + V$ L6 z/ I# T y: E& D
! w" S3 Q1 L& w2 L; D, _- (setq osmold (getvar "osmode")) ; 保存调用前的osmode系统变量值
- U |4 s, i* j% m6 s+ f - (setq ocmdold (getvar "cmdecho")) ; 保存调用前的cmdecho系统变量值% j' L4 @) x) V6 v
- (setvar "osmode" 0) ; 关闭对象捕捉 # b; F7 G/ H* i2 r6 _
- (setvar "cmdecho" 0) ; 关闭命令的回显
, m) x+ I Z- J9 h; {
: V( n3 m' L4 }. ~- (setq innerdiafactor 1.5) ; 设置内径系数
! [& _ a _* L0 H2 H7 G - (initget 7) ; radmid 必须非零、非空、非负
- I1 {. @- `9 ?+ q5 Q1 e) c2 ~3 c, B% ?( | - (setq radmid (getdist "6 O% \" A- j; o% ^& J4 n/ ?% ?
- 公制外径: "))5 s: g% J) G# q/ ^
- (initget 7) ; threadpitch 必须非零、非空、非负! g' l( C( f5 \
- (setq threadpitch (getreal "
" C# Y6 x, N' p) P# Q+ a - 螺距: "))# {. W2 N* S, B( |# B) D% C
- (initget 1) ; ptStart 必须非空
( Z1 b5 I ~, Z - (setq ptStart (getpoint "( |7 j; ~; ^* c \) M, f# ^
- 起始点: "))3 Z$ i, D& X* S5 G+ v/ O
- (initget 3) ; threadlength 必须非零、非空、非负
" c8 U! [2 V& O# A/ d - (setq threadlength (getdist "' [% W2 M* f! ~+ O
- 螺纹总长(Y方向): "))
: z( B" c! S# U: q k r - / f3 q/ b3 a2 }" w1 _
- ; 对公制外径添加公差
! q* o% V* n$ E2 a - (if (<= radmid 3) (setq order 0) ; 根据公制外径确定公差带中位置- b! X$ r: C1 m
- (if (<= radmid 6) (setq order 1)
( F m3 n, j& d' H+ c9 e - (if (<= radmid 10) (setq order 2)2 i& x" F [" [/ I6 P6 {/ m4 u6 {7 F
- (if (<= radmid 18) (setq order 3)
' w0 T G7 A' Y. L( Y$ K - (if (<= radmid 30) (setq order 4)' |9 T% a* O: \ J
- (if (<= radmid 50) (setq order 5). o- W7 ~% Q7 Y# ~8 I0 T1 T' x
- (if (<= radmid 80) (setq order 6)& y# o$ C5 g) J0 L7 x% A5 B4 Y- Z+ s
- (if (<= radmid 120) (setq order 7)
Z8 t5 z9 T0 P$ x8 Q4 i2 z# { - (if (<= radmid 180) (setq order 8)
$ q9 O) @# e, x4 J - (if (<= radmid 250) (setq order 9)+ j+ @1 R7 P @# G* F, \) |
- (if (<= radmid 315) (setq order 10)! w4 D+ |4 j+ }/ v: O
- (if (<= radmid 400) (setq order 11)- m* E6 D& y# ~
- (if (<= radmid 500) (setq order 12)- w8 a* i* U5 a# x/ G/ M
- )))))))))))))
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- (if (< threadpitch 0.25) (setq radmid (+ radmid (nth order 4H))) ; 根据螺距确定公差带
, A( {* v; j6 ?2 p# O* N - (if (< threadpitch 0.35) (setq radmid (+ radmid (nth order 5H)))% n0 w) J! d: \ q i' v
- (if (>= threadpitch 0.35) (setq radmid (+ radmid (nth order 6H)))7 B5 b$ e/ H& [0 _6 B3 ? t
- )))
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- (setq h (* 0.866025 threadpitch)) ; 计算齿高2 L L& {0 C, f6 K s$ P# v p& Z
- (setq radouter (+ radmid (/ h 4))) ; 计算外径8 I* u) A7 o0 r9 k; \. s5 N
- (setq radinner (- radouter (* h innerdiafactor))) ; 计算内径2 y# v- b# G+ V3 u- A% ?) S
- (setq threadangle (+ 30 0)) ; 计算齿顶角
' f9 P' T: r( \+ }; k - * m6 [) Y; f/ G( q% q
- (auxithread radouter radmid radinner threadpitch threadlength threadangle ptStart) ; 调用绘制三维螺纹的子函数/ n |/ f5 K$ t! \6 z- x w2 E- i
- 7 D8 O* K* u6 x
- (princ "5 l0 j5 I9 b) T! T
- 三维螺纹创建完成")
. S6 i$ O6 n5 `( m# X) q5 G( z2 B - (setvar "osmode" osmold) ; 恢复调用前的osmode系统变量值+ g) R! o! y( e4 J
- (setvar "cmdecho" ocmdold) ; 恢复调用前的cmdecho系统变量值
1 c/ p3 ~5 _ n& o' _ - (princ)7 M# R% H0 f! _' L
- )) _' Y. s& r A$ }
- 5 r# }5 J! E: f& F, Z
- (defun auxithread (radouter radmid radinner threadpitch threadlength threadangle ptStart / ttal pt1z ang pt1a
! b/ D* Q( x: ^3 ]: P: U* Q - pt1az pt3a pt1b pt1bz pt3b pttmp1 pttmp2 pttmp3 pttmp4 pttmp5 pttmp6 pttmp7 pttmp8 pttmp9 pttmp10 pttmp11 pttmp12 tstmp startcone endcone)
/ i" b" y7 h6 v; @% \# z3 m$ f0 ] - " B* C T" E& L" `/ D6 C' d
- ;(command "undo" "begin") ; 开始undo步骤! Y2 _5 P, c5 q' v
7 Z) n; H% S6 l" R- (setq ttal (+ (fix (/ (abs threadlength) threadpitch)) 3)
% ^2 C! C$ ]' f - pttmp1 (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (caddr ptStart))4 b# e- g* b* t, V& ^$ f/ Z; G
- pt1z (list (- (car ptStart) (/ radouter 2.0)) (cadr ptStart) (+ (caddr pttmp1) 1.0))
+ S# {$ W/ n& m9 r - pttmp2 (polar pttmp1 (/ (* threadangle pi) 180.0) 1)
7 l5 p( E7 R/ S) }) B& e1 T/ r - pttmp3 (list (+ (car pttmp1) radouter) (+ (cadr pttmp1) (/ threadpitch 2.0)) (caddr ptStart))
( m+ _* d/ D- z/ a+ W9 Z' e1 d - ang (angle pttmp1 pttmp3)+ c% u% p6 k0 \* z1 N1 D. P
- pt1a (polar pttmp1 (+ ang (/ pi 2.0)) threadpitch)
1 }1 D1 y3 N8 [# |) ?, | - pt1az (list (car pt1a) (cadr pt1a) (+ (caddr pt1a) 1.0))
1 Z8 ^( X; t4 | - pt3a (polar pt1a ang radouter)
: S# J1 ^- }$ l* C3 T0 G - pt1b (polar pttmp1 (- ang (/ pi 2.0)) threadpitch)
; p. H3 S! J4 V/ \: ~ d - pt1bz (list (car pt1b) (cadr pt1b) (+ (caddr pt1b) 1.0))9 `4 u( U, P7 b9 K: N* W( h
- pt3b (polar pt1b ang radouter)
5 m5 k1 H) ?( p- } - pttmp4 (polar pttmp3 (/ (* (- 180 threadangle) pi) 180.0) 1)
7 p: k4 z. [6 s: X - pttmp5 (inters pttmp1 pttmp2 pttmp3 pttmp4 nil)7 Z I, W& N9 g' J F5 D) S
- pttmp6 (list (car pttmp5) (cadr ptStart) (caddr ptStart))
( G$ Z2 N$ G8 ]& n4 T' a0 F - pttmp7 (polar pttmp1 (/ (* (- 360 threadangle) pi) 180.0) 1)) B3 C" T e* Y0 |. q
- pttmp8 (polar pttmp3 (/ (* (+ 180 threadangle) pi) 180.0) 1)
3 x$ [4 Q' p# D, c' o! H" J - pttmp9 (inters pttmp1 pttmp7 pttmp3 pttmp8 nil)
% r8 ^ j! P$ U8 K/ \+ e - pttmp10 (list (car pttmp9) (cadr pttmp3) (caddr pttmp3))
P5 _3 f6 X+ b% m- i. Y( V/ h - pttmp11 (polar ptStart (/ pi 2.0) threadpitch)# K8 J, o3 K5 B3 r. I
- pttmp12 (polar pttmp11 (/ pi 2.0) (abs threadlength))5 Q! S4 B- u, H$ [
- )* C& Z8 S/ n- G- Y4 ?
$ O6 ~' h8 S/ j% l! |9 {- ;-------------------------------------------------------------------
; q6 H: \' k$ P# M }/ g. c - ; 绘制两个倒置的并偏移1/2螺距的圆锥% J( _% x* K0 }# r: }
- ; 这两个圆锥都以中剖面剖分
" Q$ ~3 g' l# S/ h& ` - ; 进行并集运算0 w! ^' W; v& P6 r
- ;-------------------------------------------------------------------
& i$ b6 Y9 a) z. }8 Y4 c - 8 D- [! {2 ^0 A! z }
- (SETQ startcone "order"), ]) `) g$ n; f; F) q1 }) o( k' x
- (SETQ endcone "Y")
* U. i! R8 Q9 X T7 B+ P - (command "zoom" "w" (list (car pt1a) (+ (cadr pt1a) (abs threadlength)) (caddr pt1a)) pt3b)
" \4 b2 \* a8 u+ ?
& @. Q; x5 O. u$ I: E- (princ "
8 \$ B( V( ?' V* f - 正在绘制三维螺纹，请等待")
7 H) w* _# F R- x& I& ]/ l - (command "pline" pttmp1 pttmp5 pttmp6 "c")
# [8 b7 D+ o3 N - (command "revolve" "l" "" pttmp5 pttmp6 "")( `( ~8 c) K1 U% ?* U
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp5)
% r& G5 ^5 `' {+ {6 W - (command "slice" "l" "" pt1a pt3a pt1az pttmp3)* S! {% V- _+ l; \) v- B# m' g+ [
- (setq tstmp (ssadd (entlast))). a. w2 D' u# E7 ?/ I
- (command "pline" pttmp3 pttmp9 pttmp10 "c")
' l6 ~; c$ F# S- \0 R9 Y2 z - (command "revolve" "l" "" pttmp9 pttmp10 "")1 k3 s/ y) e( p. W b
- (command "slice" "l" "" pttmp1 pttmp3 pt1z pttmp9)
" c# x9 D9 ?9 R/ K# E - (command "slice" "l" "" pt1b pt3b pt1bz pttmp3)
7 r( {* ]+ h0 g4 L - (setq tstmp (ssadd (entlast) tstmp))
% q* X* I- \. P6 T9 u K - (command "union" tstmp "")
5 E% O5 Z' k7 b5 ]- @ - ) K, [/ h' M }- `) `6 m# g1 u
- ;-------------------------------------------------------------------
" y6 P4 s1 y) Y, o - ; 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
* r! v% S. h: N - ; 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( m- |5 I8 q - ; 在最后一步被切除# P% u$ f/ R+ V$ k* m
- ;-------------------------------------------------------------------0 V+ v9 v8 { _ d. `+ a
- 0 E& d% G5 j2 h( H
- (command "slice" tstmp "" "xy" ptStart "b")
+ L7 b# k, A' E9 I8 j2 U' Y - (setq tstmp (ssadd (entlast) tstmp))
+ V8 V/ o) g9 ^ - (command "mirror" "l" "" pttmp1 "@10<0" "y")
5 \3 F( p: j2 @0 C- B; v8 L/ x - (command "union" tstmp "")
6 ] I, O" n( O1 K+ n/ x2 W) @
% \9 O* l( @7 \5 |/ Y3 z t7 e- ;-------------------------------------------------------------------: i& t7 t5 K" r* D7 d
- ; 螺旋进行阵列操作，然后再作并集（可能会耗费一定时间）
, }7 D/ n$ X+ w1 O8 ? - ; 得到的实体再切除到指定的螺旋高度
- f$ U# j' x# \. ?0 J2 E* g - ;-------------------------------------------------------------------' v8 i* J% ]. o
- 1 v6 `; B$ B `) l% u" E4 g1 D/ i
- (setq e (entlast))( i; C1 u9 o9 b% a( K& _1 a% ]' \
- (command "array" tstmp "" "r" ttal 1 threadpitch)% u9 P* h! k. _( D0 K; r/ l
- (repeat (1- ttal)
& D& G# a& }8 h3 U$ l+ K5 ~ - (setq e (entnext e)/ u6 t4 n8 C& H7 K( J0 G
- tstmp (ssadd e tstmp)! B) Z2 z% g# X- e5 Q
- ) C, C! D6 L9 v
- )! S2 ?8 X4 K( X" _* x5 _1 s9 R* |
- (command "union" tstmp "")
7 S( p( X p" f0 }2 w- ]
/ q8 ~* i' q7 K$ j( D1 P- ; 若开始创建45度的圆锥
# N3 [: Y; H: ^4 P - (if (/= startcone "order"); v9 q2 \" Y; p6 R6 W
- (progn (setq e (entlast))9 X/ m m+ Z$ Y1 T
- (command "cone" (list (car ptStart) (+ (cadr ptStart) threadpitch) (caddr ptStart)) "d" radmid "a" (list (car ptStart) (+ (+ (cadr ptStart) (/ radmid 2)) threadpitch) (caddr ptStart)))7 Z h% p, [9 y v
- (command "union" "l" e "")
- F; h; ?( W0 y; B6 R7 { - )$ f6 y7 y+ Q6 K8 B v6 k) w, X
- ), l9 _: O0 [% Q4 O5 a0 ]# [0 X. E
" ~# y" {: O i/ w" Y7 X- (command "slice" "l" "" "zx" pttmp11 pttmp12)
5 k* I1 \* z1 T - (command "slice" "l" "" "zx" pttmp12 pttmp11)
3 ]# o; a& l8 T3 [ - (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) threadpitch) (caddr ptStart))) . P* x6 ]6 Z8 Q
- 4 H3 u2 R' v8 j1 _0 @
- ; 创建最小直径的圆柱体，然后与螺旋作交集
. A' a( z$ } @9 _' H - (setq e (entlast))
) w8 I# V; V( s, g4 X# ]* k - (command "cylinder" ptStart "d" radinner "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))
9 u3 y9 `. k1 Z: M4 a - (command "union" "l" e "")! w; M0 l2 V1 {/ S, G
- (setq tstmp (entlast))
. O3 v7 @ S' P" y' S - 7 A7 @5 O2 Y/ W7 r5 x, x
- ; 创建中空的圆柱体
. c) p" U8 A, K% s8 z" N% ] - (command "cylinder" ptStart "d" radmid "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart))) ; minor dia8 I: {4 K5 S& y6 J) N3 g
- (setq e (entlast))# [9 c9 P( N+ U- s9 N( G
- 1 X. g6 x: _- m4 B0 l( V8 Z% P
- ; 若最后创建45度的圆锥
& P E# s6 N! Q% a - (if (/= endcone "order")! k; a5 ?* p) }5 |9 \2 ?+ m/ Q* I6 _* o
- (progn (command "move" "l" "" ptStart (list (car ptStart) (- (cadr ptStart) (/ (- radmid radinner) 2)) (caddr ptStart))) 6 m4 u" p7 N7 L" A
- (command "cone" ptStart "d" radmid "a" (list (car ptStart) (+ (cadr ptStart) (/ radmid 2)) (caddr ptStart))) ' f% i% W/ `/ J2 E+ x8 p2 b# z
- (command "move" "l" "" ptStart (list (car ptStart) (- (+ (cadr ptStart) (abs threadlength)) (/ (- radmid radinner) 2)) (caddr ptStart))). m$ U j. O; C9 A: R
- (command "union" "l" e "")
$ J; c, Q+ g2 ]8 S - (setq e (entlast))
7 g$ e0 g# R2 c% d6 K7 @ - )
$ i) e/ Z5 e( a' Y' M8 ~8 F& q - )
( X! K$ O: u3 p( `7 A9 f2 L5 S* V - ( L4 R' u Q* `
- ; 从大圆柱中减去小直径圆柱
7 g: W! c5 c- K; O - (command "cylinder" ptStart "d" (* radmid 1.5) "c" (list (car ptStart) (+ (cadr ptStart) (abs threadlength)) (caddr ptStart)))8 ]) n5 X2 \: G) U5 ]
- (command "subtract" "l" "" e "")
" h) ]2 n7 c7 Q1 `4 a - (setq e (entlast)). I% n3 ~) E6 e* e
3 W0 b1 v$ F7 i- ; 从螺旋中减去圆柱5 E9 Y( U% W$ q
- (command "subtract" tstmp "" e "")
2 Q% R: A, w# ^' d( P9 D - * h; E. Z: @$ X: ~0 i6 N
- ; 如果螺旋长度为负然后镜像! f3 N U8 \8 W# ]* N( M
- (setq e (entlast))6 i# @% ?3 r a/ d
- (if (< threadlength 0) (mirror3d e "zx" ptStart "y"))
0 z1 E$ A8 L9 N2 J0 @% ]& q0 c - , ?0 w4 a/ N8 r: D9 y
- (command "zoom" "p")
, r4 c- h) O* p0 V! B - ; (command "undo" "end") ; 结束undo步骤: a% F/ u9 @$ a4 s" z" [' T* `
- )
9 v h; D6 A/ V' h. O. q
. Y* c+ ]! |' r6 ?- ;;;---------------------------------------------------------------------------------------------------------------------;
' Q% s5 X+ ~1 ?1 J - (arxload "geom3d" nil)2 a7 @" E' |2 I; ] G( v2 L: b
- (princ "% ]6 M; B8 w) U+ J6 ~; p
- 3DThread 已加载。 ")! ?0 ^3 U- x8 L! v
- (princ): U. S9 j+ ~6 Q' R3 v9 h C
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! ] G1 O; Z* F; }/ r# b- s/ D三、弹簧源程序
- v* i8 i4 C! i7 c: [8 G' o: X5 W- (defun errMsg (s) ; 当命令执行时出现错误 ' Q+ `8 A. |' ] y
- ; 例如用户按下了CTRL + C2 F! _9 c9 m+ ]! I
- (if (/= s "Function cancelled")
0 @* N* z$ e# N% Z5 O* {9 ] - (princ (strcat "5 j3 b% _& x5 i' a. ^
- Error: " s))
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- (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值9 f* @4 w% J& \8 t+ J L9 m
- (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值0 H7 C% i! G) ~8 O; ~6 v H
- (setq *error* olderror) ; 恢复旧的错误处理, T8 Y' l' g- V X) n4 o
- (princ)
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- (defun spring (nRepeat cntPoint bhfac lr strad bvfac
. B, J4 _2 T, S& E$ h& l, c8 j# Y; _ I - / angle distnc tp aGrw dhGrw dvGrw Pi2 dv)
. T3 k8 d5 R. x* V
+ l ?& m4 h9 M. _8 Z9 m- (setvar "blipmode" 0) ; 关闭 blipmode " d4 R7 P& c1 r% K- S
- (setvar "cmdecho" 0) ; 关闭 cmdecho* H i+ T2 L& _' t2 Q
- (setq Pi2 (* 3.14159265 2))+ }0 E+ U h9 W" s) L
- (setq aGrw (/ Pi2 lr))
& r6 T6 w. j- Q9 J' _9 X: H% g7 F G - (setq dhGrw (/ bhfac lr))% l# }) L( j3 j5 F6 G' ~
- (if bvfac (setq dvGrw (/ bvfac lr)))" m B& C7 E# N2 |
- (setq angle 0.0)
; l/ {5 u) i# w! m5 k - (if bvfac
* B7 _7 C+ W! v& L0 i - (setq distnc strad dv 0.0)3 L; X, M: i, i# P& W
- (setq distnc 0.0)
[( K0 P! ~4 _9 y; @ - )" v9 Q1 y; ]& U9 k2 Y
- (if bvfac
6 b! l5 R% |& u3 y# R1 y' V! S - (command "3dpoly") ; 开始绘制弹簧3 U% N) z. ?7 L% m2 h4 D
- (command "pline" cntPoint) ; 从基点开始绘制弹簧
- L( g- U9 r/ K, y, Z; ^5 L - )
( \0 t8 {% H% g# r# f% n/ [9 K - (repeat nRepeat ; [& w1 |( U- ]5 q4 x$ B9 S! D5 _
- (repeat lr . P/ I( F1 Y H( d) i/ z
- (setq tp (polar cntPoint (setq angle (+ angle aGrw))6 b4 S" }' U% Y8 u" `2 p
- (setq distnc (+ distnc dhGrw)); \4 G, l; w- }8 b, i9 r6 x L. |3 k
- )! k' D" ]$ K; ^% B, N
- )
9 s$ n' |- A [% M - (if bvfac$ `0 K2 h1 l* Y7 `
- (setq tp (list (car tp) (cadr tp) (+ dv (caddr tp)))
& l9 c: o. ^0 O4 M7 u: x$ X+ u - dv (+ dv dvGrw)% \1 n. J" q8 p& M& E4 y1 T
- )& ^: m# Z) M7 m
- )
: E k a8 W6 |5 W. _" J8 x - (command tp) ; 继续输入下一点3 u; T% }& }& V9 n. }' a a! m( E
- )9 C& }7 C4 d$ G
- )
6 a- Q1 G" ~* I - (command "") ; 输入结束% D2 `( a% Z# ^" k
- (princ)
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- 8 p- Z+ J w7 M
- ;;;
9 u, b/ C3 W( I6 f/ T$ e6 S) J - ;;; 生成三维弹簧函数调用接口
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- " [" A% L) h) r8 y
- (defun C:3DSPRING (/ olderror cmdch blpmd cntPt RottCnt horiGrw vertGrw bgnRdtn ptCntPerCircle)
$ ?3 g1 n* a3 i5 i: K3 N6 M# A ?" F - (setq cmdch (getvar "cmdecho")) ; 获取cmdecho值，以便调用结束后恢复
6 c2 x" N1 A# e6 _ - (setq blpmd (getvar "blipmode")) ; 获取blipmode值，以便调用结束后恢复7 W9 z" p1 m' P6 n. g2 ?. G
- (setvar "cmdecho" 0) ; 关闭 cmdecho
7 y7 {8 c6 v7 i1 N; g" W - (initget 1) ; cntPt 必须非空
! a& e* V& d& B) a8 h - (setq cntPt (getpoint "
4 Q% @+ A) O* d- `& N. D - 请输入底部中心点: "))
3 K0 [" B. a& _* c* [1 u - (initget 7) ; RottCnt 必须非零、非空,不可忽略: U1 ?6 `' M* Z+ V- u
- (setq RottCnt (getint "
( ]+ ^. j. v7 y, M9 U( s - 旋转的圈数: "))+ q: o } z% c" J$ S9 V7 W' \
- (initget 7) ; bgnRdtn 必须非零、非空,不可忽略
" o1 m F4 [; C - (setq bgnRdtn (getdist cntPt "
$ l4 x/ P+ R. ]) [ - 起始半径: "))
( Q8 Z: ?) {- s6 q* p1 m9 }4 h% }, } - (initget 1) ; cf 必须非零、非空
( Z) d% s& q$ ^2 Y) k - (setq horiGrw (getdist "5 [; r& I. Q0 ~ w; L. c; C
- 每一圈的水平增长距离: "))
9 r: k: Q# t6 i+ w( J m5 e - (initget 3) ; cf 必须非零、非空
7 t3 G+ P' p3 W0 T0 Z - (setq vertGrw (getdist "
3 q! v# ?8 ~. x) m/ O - 每一圈的垂直增长距离: "))
* n! D$ i- _2 x+ g8 ~' a - (initget 6) ; ptCntPerCircle 必须非零、不可忽略2 ^7 h$ ]6 |' v
- (setq ptCntPerCircle (getint ". Q' C) \( E0 W: L
- 每一圈的插值点数<35>: "))/ H$ T. C# C' E/ m
- (cond ((null ptCntPerCircle) (setq ptCntPerCircle 35))) 1 W) g0 `8 p/ ^8 v# o- `
- (spring RottCnt cntPt horiGrw ptCntPerCircle bgnRdtn vertGrw)
w e; M9 _' W - (setvar "cmdecho" cmdch) ; 恢复调用前的cmdecho系统变量值
* K$ N; W- O" V2 O% g& ] - (setvar "blipmode" blpmd) ; 恢复调用前的blipmode系统变量值( s! X# M% U- r2 t2 ~
- (setq *error* olderror) ; Restore old *error* handler
* w9 u: `: H4 l - (princ)
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* l: t& {( R/ Z+ A! i- {8 D- ) ! U% b2 h8 X0 T! [8 P; f0 n# Z% _: L
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发表于 2006-4-14 13:10
发表于 2006-5-5 10:43
