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;;;-----------彈簧的程式---------- ( \0 P4 _8 L( s! [2 u! s- k6 S" J(defun c:spring(/)( h2 K. A/ J( g; w6 l (setq p1(getpoint "基點:")) 9 O, U0 v3 t5 O S1 [3 m" h(setq r(getreal "平均半徑:"))0 u/ Z- B8 k0 k. k: p (setq d0(getreal "直徑:"))3 \6 j1 y" W% x8 U7 ? (setq disp(getreal "節距:")) & G O+ e# [; r; d+ L8 r- V& i(setq n0(getint "工作圈數:")) 7 O7 V' ?* G8 X6 l3 x( e(setq n(getint "細化段數(16/20/24/28/32/36/40/48/52/56/60/100):")) - g) z1 E, Z! g& p/ b( D5 {5 \: ](setq n1(* 1.25 n)) ;支撐圈細化段數 ( {; i7 c, K8 M! d(setq n1(fix n1)) 1 J7 u& ~: L( a* X: {! P(setq n2(* n0 n)) ;工作圈細化段數$ M$ u2 ?/ m+ ^5 T8 J (setq delta(/ (* 2.0 pi) n)) ;單位轉角 1 _# o% K0 K0 G0 E& u$ j6 P(setq j(/ disp n)) ;工作圈軸向位移量5 ]7 E" z3 K# s0 F$ i" I# n8 Z (setq j0(/ d0 n)) ;支撐圈軸向位移量 , c$ i& h( j, s2 E) A(setq bb(caddr p1))2 Z2 |9 k3 w) S& ?! C5 o# {9 z2 Z (setq ang 0) # }! w2 F! M i* Q8 v(setq jj 0)) k' U$ H; K. z" Z+ X (command "ucs" "o" p1) ) H: [+ p1 z+ D* b(setq pt1(list r 0 0)) 5 w5 f3 Y, Q! ~8 t(command "3dpoly" pt1)$ l0 [& h: f' V (repeat n1 ;繪製下支撐圈 6 A4 \1 l7 i$ s h# ^# v- \(setq jj(+ jj 1)) [& b" t% P! J' T6 F8 f: H( V(setq ang(+ delta ang))8 |/ c- [ Y g3 ~* ]7 Q$ M (setq pt(list (* r (cos ang)) (* r (sin ang)) (* j0 jj))) , ^! E9 l" y. K0 A! f4 Q' {3 `& N(command pt)2 h& Z( l5 l- D0 W, {* \ ) - F4 W: [ M0 t8 N, R( ?0 W4 S(setq p2(list 0 0 (* j0 jj))) 8 c6 L$ |4 m( P4 n(setq g1(* j0 jj)) ;下支撐圈高度. ^9 O. K' I5 Y) w# L/ d' V (setq jj 0) # J9 _' D7 s# z5 G(repeat n2 ;繪製工作圈3 ]4 h( ?/ o: E4 z3 J (setq jj(+ jj 1)) 0 _+ h( N' A0 b0 F0 A(setq ang(+ delta ang))8 L2 k8 l" [6 R9 ~5 I ` (setq pt(list (* r (cos ang)) (* r (sin ang)) (+ g1 (* j jj))))7 R. r" Y$ O6 _! L! a$ k) h3 K (command pt) 1 s7 u6 [9 a. i1 r& }) & I* x+ m6 q9 U$ K( H(setq p3(list 0 0 (* j jj))) + F! o# W' W2 s: _(setq g2(* j jj)) ;工作圈高度8 Y& W0 Z$ G3 Q& t8 G+ r (setq jj 0) 2 y* [5 Q/ [7 k(repeat n1 ;繪製上支撐圈 , K: v+ F( [0 Z- p, D$ R(setq jj(+ jj 1))0 o$ E" F4 m2 J0 u/ ]9 ^ (setq ang(+ delta ang))( g3 R- y; |& x (setq pt(list (* r (cos ang)) (* r (sin ang)) (+ g1 g2 (* j0 jj)))) 1 q7 v% e) m6 n0 b+ s, t* h(command pt)1 I& q% x0 D8 @9 Y/ o3 [& B )% Y# {/ A# X; _ (setq g3(* j0 jj)) ;上支撐圈高度 8 G$ n. C' s& z(command "") 4 C5 r1 u9 O; H, i, ?/ C: ?8 S(setq e1(entlast)), G9 z9 L; Z6 P: H6 ? (command "ucs" "x" "") ;拉伸彈簧 1 A, [. h" s2 F0 z }(command "circle" pt1 (/ d0 2))- ]6 |" |$ O7 R1 H (setq e2(entlast)) . U6 H; q8 e F/ M(command "extrude" e2 "" "p" e1): J6 r0 K! ?( h8 I2 A; O, x (setq e3(entlast)) ! Y6 a/ A# |& i0 L! s(setq pt2(list r (/ d0 4) 0)) ;磨平 0 i! B" @' c0 d u% Z c7 ~(setq py(+ g1 g2 g3 (- 0 (/ d0 4)))) $ x" s4 j- o8 ]3 K: F$ C; V5 e5 Y(setq pt3(list (- 0 r) py 0)) % x/ {! Q: Q. ]2 Y5 s0 @(command "slice" e3 "" "zx" pt2 pt3) % a1 [9 c+ h% m C% T C2 ~(command "slice" e3 "" "zx" pt3 pt2) & p# G' O& N8 a, U3 ](command "ucs" "w") + N! F. p- i/ f% N, ]9 h* ^! _" @0 V3 ` ); ~ A8 q+ V: ~+ a( U4 [" l ;;;---------end----------彈簧程式結束!?. P9 z, Y* l3 A! W 兄台把這個程序載入CAD就可以繪製3D彈簧了 |
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