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3#
樓主 |
發表于 2006-5-23 18:03:33
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只看該作者
Re: 請教怎么用autocad 畫漸開線!
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(defun C:jkx ()
2 H" D! v/ }& K+ X+ V& f( q(setq pi1 (/ pi 180))
" ^$ j4 @& @" @, Q(setq po0 (getpoint " \n 請輸入中心點:"))
! W* ^* W& H0 r4 L: x2 R {(if (= po0 nil)
1 _# Y" t' Q1 M* [+ |0 Y(setq po0 (list 0 0 0))0 P+ R: ?9 O4 V& M5 F
)
9 v/ W' e2 s1 N( b! D1 W(SETQ d (GETREAL "\n 請輸入分度圓直徑:"))' s3 |! v s6 x7 ?; ^7 g0 J
(if (= d nil)
1 Z* Q" i1 W0 @6 f9 Y(setq d 100)
* G" U/ S5 ~* Z)
3 t0 p$ k0 j r: i/ d(setq step (getreal "\n 漸開線精細度(0<精細度<=10):"))9 x& {: F5 x! V0 k$ [
(if (= step nil)
) Q; F I3 w z9 c(setq step 1)) S7 o3 M- M+ ~- q2 h
)
# t9 p6 g" l! X( _7 Y: a(setq rd (/ d 2))
; @" @0 N1 K1 ?5 w# b4 I(setq os (getver "osmode"))% J7 a: Y6 T! b- M( _2 S% z
(setvar "osmode" 0)
5 }/ N/ v k z+ G0 {2 p8 u3 Q$ }(command "UCS" "OR" po0)' c/ Y% Z8 x" W r
(command "CIRCLE" "0,0" rd)( p" g) V# p# ?0 ^9 t
(SETQ R (* rd (COS (* PI1 20)))) ;標準齒輪分度圓的壓力角為20度. d) f. q* F# i* ?) C8 w
(SETQ ST 0)
$ Q) l3 g! p8 O1 E. p* o(SETQ STR (* PI1 ST))
. X$ u6 P, ]9 }$ G _! i8 W(SETQ X (* R (+ (COS STR) (* STR (SIN STR)))))
; S( P7 ~ {# @3 `, \(SETQ Y (* R (- (SIN STR) (* STR (COS STR)))))
; b0 L7 L: \) G8 e. m8 p! {# ](SETQ XY (LIST X Y))" B& a! O% h$ H
(COMMAND "PLINE" XY)- K) J4 J6 ]' j
(SETQ ST (+ st step))% c$ O7 C+ ?: ]% L
(WHILE (<= ST 80) ;齒輪上的漸開線壓力角不會超過80度* _* K/ x" y* C+ n' T, Z) ~
(SETQ STR (* PI1 ST))
) q4 t) l7 I- o(SETQ X (* R (+ (COS STR) (* STR (SIN STR))))); {; f3 e& c; N" y
(SETQ Y (* R (- (SIN STR) (* STR (COS STR)))))3 C" D' z$ |1 E7 s! G4 N5 s
(SETQ XY (LIST X Y))
7 A, \! ^& o& y(COMMAND XY)0 l: ^ I. w, H6 d; R d
(SETQ ST (+ st step))8 S8 I4 }3 d) n$ C* p
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(command "")4 `- g" k' Q7 o4 q
(setvar "osmode" os)$ n0 e/ k9 c! m6 R4 H% C; q. ^
(command "UCS" "P")
5 Q( v+ y6 B/ A g' V- ])
; z* [- y" A) C2 N3 l0 q0 X' R有人用autolisp寫的,不知道怎么用,能給點提示嗎? |
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