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發(fā)表于 2009-4-26 12:43:54
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;;;-----------彈簧的程式----------
* ^6 j0 [& B" C* [0 J(defun c:spring(/) 5 _6 ~% K. W! C
(setq p1(getpoint "基點:"))
5 e$ ^( \. G. y0 ](setq r(getreal "平均半徑:")) ) a$ b$ o9 J/ i j
(setq d0(getreal "直徑:"))
; C, Z* G: j! ^(setq disp(getreal "節(jié)距:"))
+ v! s+ Z# ~, ^& t6 W5 r5 n(setq n0(getint "工作圈數(shù):")) # K% k6 n, `5 t& Z; x
(setq n(getint "細(xì)化段數(shù)(16/20/24/28/32/36/40/48/52/56/60/100):")) 2 t* K% X( D' [
(setq n1(* 1.25 n)) ;支撐圈細(xì)化段數(shù)
* ^8 ~2 b; E. ?/ j* B(setq n1(fix n1)) % L, } {2 Q0 {0 c- X
(setq n2(* n0 n)) ;工作圈細(xì)化段數(shù) , p7 |. j/ W; d9 O
(setq delta(/ (* 2.0 pi) n)) ;單位轉(zhuǎn)角 # Y3 d1 O- m. c# \0 O3 ?* g( z
(setq j(/ disp n)) ;工作圈軸向位移量 8 ~9 l: c; x+ d& r3 }2 G8 G8 J
(setq j0(/ d0 n)) ;支撐圈軸向位移量 ( O! a4 z$ p7 T. _' `' u& E
(setq bb(caddr p1)) , K: B7 m! ]# d6 x/ W
(setq ang 0)
2 ~/ n8 A! \% T* E(setq jj 0) 2 u# ~9 e: D* n' ?$ y' D* Z
(command "ucs" "o" p1)
* a5 _ `7 d( [& |' Q% Q- ?& c(setq pt1(list r 0 0)) . \: }" L2 u q' x6 D
(command "3dpoly" pt1) 8 F, f+ j* @& ]) U! ?& L
(repeat n1 ;繪製下支撐圈 % P' A# b; O8 _& H& ~/ M! R
(setq jj(+ jj 1)) $ i7 }) v6 |" r G# u# G$ p6 f D
(setq ang(+ delta ang)) ' p$ i* d m% D4 J: Q" n+ B
(setq pt(list (* r (cos ang)) (* r (sin ang)) (* j0 jj)))
5 w `* O6 g6 f; R4 n(command pt) $ A' O+ \* \" i5 ^; p
)
* _( U" N8 }; O3 f" e' k' f9 w, q(setq p2(list 0 0 (* j0 jj)))
+ d! _6 w0 @( p C! g(setq g1(* j0 jj)) ;下支撐圈高度 - K2 f* i3 D) V' X n8 k' q! b# U
(setq jj 0) * I. K( A! U7 V& E
(repeat n2 ;繪製工作圈
3 t4 {3 ^' u y ?(setq jj(+ jj 1))
# S/ y( P% E- ]% O& {: G& `6 q& D(setq ang(+ delta ang)) ! c6 u2 ?* Q+ b' M
(setq pt(list (* r (cos ang)) (* r (sin ang)) (+ g1 (* j jj)))) , D3 P: } j- ~" y0 F b, Z! @0 a
(command pt)
0 u, @- v& P7 _) k, ^)
/ S, K0 }" i ?(setq p3(list 0 0 (* j jj)))
' d3 w+ L1 z& ~) M3 ]( {(setq g2(* j jj)) ;工作圈高度
1 g- m2 V" q$ t(setq jj 0) % g( A) M; _5 X2 {
(repeat n1 ;繪製上支撐圈
* ?: N* u% [8 w(setq jj(+ jj 1))
6 y( f0 m* h% \, r1 X% `(setq ang(+ delta ang))
% D5 W# {/ s" u( |6 e(setq pt(list (* r (cos ang)) (* r (sin ang)) (+ g1 g2 (* j0 jj))))
* l8 p, a2 u$ N(command pt) : {2 ^) ]9 f' h6 Q4 t+ L
) 6 U2 B1 v' w3 Q+ }' q* i" }
(setq g3(* j0 jj)) ;上支撐圈高度
* ^1 @ G+ H: Y3 x w9 v(command "") ! i; {0 d; W g1 ?* ?+ m* w' T
(setq e1(entlast))
5 z# Z) ~0 t: `4 Z& c( A(command "ucs" "x" "") ;拉伸彈簧 ) z$ w! y0 M" {: u- ]) R& b
(command "circle" pt1 (/ d0 2)) 4 C) }. i r. M; T1 ~. H' V
(setq e2(entlast))
$ U* A) P, s) X. c3 m* l/ Z( o(command "extrude" e2 "" "p" e1) . j$ L) `8 t8 |1 o
(setq e3(entlast))
1 K% f6 C# E" }2 V) G) ^" b(setq pt2(list r (/ d0 4) 0)) ;磨平
* b2 q+ u! c/ X9 ]3 W U; X(setq py(+ g1 g2 g3 (- 0 (/ d0 4))))
/ A( E! z- m" z# Q7 p( \(setq pt3(list (- 0 r) py 0)) - z4 d% i( K- P1 V4 z
(command "slice" e3 "" "zx" pt2 pt3) # b! M- n9 J1 v* f& `% `
(command "slice" e3 "" "zx" pt3 pt2) 9 e8 m! ?' A/ v. `
(command "ucs" "w")
- M: ?5 q; t0 _! p
$ W# f& F. w- r+ a* b1 Y+ l)
8 N( a+ Z: I3 a) U$ |' `;;;---------end----------彈簧程式結(jié)束,!
! E' X7 ]: \$ B$ d S. Q h3 E兄臺把這個程序載入CAD就可以繪製3D彈簧了 |
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