有下面一段漸開線程序：
; h9 w8 D( K; {) F- v;;;begain suprgear.lsp , a) s% A% y- ?& R7 t, }/ \& c
;*************************************************
$ u& z/ L) L$ _9 z/ ~/ o* ~;SPURGEAR.LSP - a lisp program by Tony Hotchkiss " {3 L! j8 o' c8 T( n* v- R
;-------------------------------------------------
, k _3 S4 e+ W& G' W) e' H$ c8 f; This routine draws a spur gear using joined
6 {% b% g4 U! Y; polylines. It lets you use any pressure angle 3 y8 G ]' q" x o' Z4 W
; to design the gear teeth.
: Z, i3 i @) Z; R4 [! {9 h;************************************************* ( b4 Y1 I. b2 w
(defun err (s) / C0 \* j' N- V3 n7 y1 U
(if (= s "Function cancelled") % n3 T7 z+ I% e. w
(princ "\nSPURGEAR - cancelled: ")
% }3 O; @/ ]7 D) g; V(progn (princ "\nSPURGEAR - Error: ") (princ s) 4 u6 G: b ~) g4 Y
(terpri)) 3 X, {* E1 j* }
); if
7 N9 Q& M3 X9 K' U; @(resetting) , k) h. n1 l2 s/ n, ~6 Q! p
(princ "SYSTEM VARIABLES have been reset\n") 8 I# o ?9 q0 p
(princ) ) k0 C- E) Y5 e( Y6 y9 G0 H3 D
); err
s4 q+ I0 o2 i/ r* l) T; |9 A8 u- F8 A+ \
(defun setv (systvar newval)
# H7 K/ A3 o, P. j# ]3 {(setq x (read (strcat systvar "1"))) " A. i3 `9 k: o- ?/ d0 B4 ^- q* j
(set x (getvar systvar)) ! x, k, E' g' C9 U/ z
(setvar systvar newval)
( U# v9 x' H9 u/ J); setv
; {- |* X0 X& ?6 q- u! s7 o- l8 Q& ]* B: t; |
(defun setting () / a+ z- b$ z, Z
(setq oerr *error*) ; \' w# b4 R8 `% D
(setq *error* err) . _' t1 `: `$ M4 G) J8 v
(setv "CMDECHO" 0) , Y5 C' I; r) ^! B% x
(setv "BLIPMODE" 0)
, Y/ c/ C- `, L/ h6 O. y); end of setting
9 I1 r5 c" ~7 c5 I* z(defun rsetv (systvar) k* d2 n1 X# a. c, D& x8 m
(setq x (read (strcat systvar "1")))
& X- g6 l) L) q1 n5 c. ^) l(setvar systvar (eval x))
( B0 b9 H) V* I; @. V) K); restv " P4 g4 ^1 T/ R. {7 F7 `* R
(defun resetting ()
/ U; S) ~* N+ c% q- C(rsetv "CMDECHO")
* n0 `7 I0 b, _- w. t" y0 F(rsetv "BLIPMODE")
8 e2 z8 V; O! F2 A6 o0 L(setq *error* oerr)
/ e u: s; P# I9 w3 T! f* i$ i, C1 p4 q); end of resetting
]5 `' V* [+ W7 ^. E: U- p1 P/ f, r; k
(defun dxf (code ename) 1 q/ `5 @+ o8 ^3 a# i0 ]% R- o
(cdr (assoc code (entget ename)))
2 o5 F) V+ Q8 f/ \! H); dxf
1 q1 d8 ~, t, _2 \! H$ t8 }' D! n; q6 Y2 i% m% k
(defun spurgear (/ D N phi DO RO A B DR DB inv-plst p1
- {/ | ^$ G3 `% U) t6 Mtrimcode invent p0 p curvent linent linent2 ent2 p2) ! Z6 O! j6 y1 _; R
(setq D (getreal "\nPitch diameter: ")
3 u$ s+ y( {2 s0 H5 I& l0 iN (getint "\nNumber of teeth: ")
, O7 ? h, v0 ]( O+ Aphi (getreal "\nPressure angle: ")
n- B: R" Y' G( w8 v% Q) ~phi (* (/ phi 180) pi) ; Pressure angle
" G8 L; _- @: j/ E& LDO (* D (+ (/ 2.0 N) 1.0)); Outside diameter
0 B) o/ h: d! B$ `9 j3 \! {. U+ ARO (/ DO 2.0) ; Outside radius
+ S% T$ a' F, `6 vA (/ D N) ; Addendum
, w3 s. x V4 VB (* 1.25 A) ; Dedendum 7 b3 ~4 }1 g* B7 R
DR (- D (* B 2.0)) ; Root diameter V/ {* _2 m0 w8 x' \/ F
DB (* D (cos phi)) ; Base circle dia.
! e4 g* \. `( B7 G9 iinv-plst (involute DB N phi);involute points & n+ K% q0 X. J# s
trimcode nil 3 N& o" |$ ~9 d/ G: u4 U1 g8 b
); setq
4 U! g. H6 u' A, F(command "ZOOM" (list 0 (- B)) # y" s2 Y$ E% [0 Q3 n' X
(list RO (/ RO 1.5))
, L, k6 V# H2 l. X" O+ h4 s6 A); command 0 X# E2 b$ O% U' k$ F
(setq invent (draw-inv inv-plst)); Draw involute.
) ~5 b/ w' F6 n$ t: K2 I7 L(setq p0 (car inv-plst)
" H. J" s$ H% E0 P2 M! I7 S. Utrimcode (ext-trim p0 DR D);trim or extend 3 W" R" w$ A+ s: d) v q& A) y
); setq ; the involute. 4 O6 |) [3 O9 y" \ ~& x7 s
(if (and trimcode (= trimcode 0))
* M* Z- Y: P) _2 j2 g. k) C" x# x(progn ; Joins the involute to the extension. 3 H1 K/ P+ ^7 B' {/ V% X
(setq p (list (/ DR 2.0) 0))
0 @# D$ E3 n1 S(command "PEDIT" p "Y" "J" invent "" "X")
- x7 b" u: V7 K) x! ](setq curvent (entlast)) - n3 w+ s: e7 l
); progn
0 s1 U9 ~" {0 W4 }( u7 G(setq curvent (entlast))
( o2 x& ]: d4 l8 d/ x& {); if 6 u5 f2 _, o, j- G7 J
(if (null trimcode) (setq curvent invent))
4 Z. q. ~2 D# u" c(setq linent (draw-top-line D DB N RO)); top line. $ N0 y* Y. P, G
(command "COPY" linent "" "0,0" "0,0") ' O0 ]$ h$ j* F( \3 C
(setq linent2 (entlast))
; _. C# j" S4 K; R5 M/ I- |(setq ent2 (mir-it curvent linent)); mirror curve $ o# e w: |5 v2 P K
(command "PEDIT" curvent "J" linent ent2 "" "X") 4 s8 _6 F2 j+ i! M4 S
(segment DR N linent2) ; Finish the job! 0 y2 j9 K# s1 P( ~! r
(setq p1 (list (- RO) (- RO)))
+ V) w$ j3 k! ^: l3 |(setq p2 (list RO RO)) ( ]: _$ H0 }) ]
(command "ZOOM" p1 p2) 7 O& V% m' ^% e) O- q/ x# W; F
(prompt "\nConverting to POLYLINE, please wait...")
) I. @9 i; {- Y ~(command "PEDIT" (entlast) "J" "C" p1 p2 "" "X") 5 h5 e* W: x" q6 Q$ E7 D! E: L7 t
(prompt "\nAll done!")
3 [/ M+ f* ^3 Z); spurgear
/ B2 y) W9 V T% C) F g* r
2 `4 g6 ~1 d- B; t1 p W(defun involute (DB N phi / numer denom frac theta2max 9 q. K& D. j8 q9 a0 D, h
thetamax theta-inc theta plist RB xval yval p)
5 y/ g, J1 Q# C7 B0 U9 j(setq invfact 3)
* g- O9 o/ C8 M" `7 O(setq numer (+ N 2.0)
9 @' ]# r$ z! m4 `! P3 fdenom (* N (cos phi))
) E$ H( f: t! z- s" W% h1 ofrac (/ numer denom) 2 O- g# Y8 Z4 J5 q
theta2max (- (* frac frac) 1)
7 K1 _2 E; g9 H1 Q# {( Vthetamax (sqrt theta2max) . T j1 @" d# z- O m. L
theta-inc (/ thetamax (float invfact))
+ H" \! ?3 Y1 m8 J5 s% Itheta 0
) h2 V s. C- O/ W* zplist nil
/ `7 I3 x' g9 G0 G O# JRB (/ DB 2.0) 0 j F% L8 }5 u. S
); setq
( }. m0 c2 V5 i3 |- O(repeat (1+ invfact) $ l* J4 L; t3 a! c5 g/ ]1 V7 i
(setq xval (do-x RB theta)
+ b# f4 w+ b% a: Pyval (do-y RB theta)
9 V' B& o! N" ]p (list xval yval)
4 {3 ^+ X: M' L; H# rplist (append plist (list p))
& d! M7 h9 K* P8 l) \5 i); setq $ s( J! ~" k& P$ g/ C4 G3 B
(setq theta (+ theta theta-inc)) ( B' m, m. u* Y5 f0 C o6 P
); repeat
, e; r( Q( A* W$ f: m* N; nplist
0 T1 S5 F0 x* @); involute & f( h) o7 x- i2 |, j
' l- T. y! u! V' `
(defun do-x (RB theta) 4 I% V! H9 I) `- L, R5 Y
(* RB (+ (cos theta) (* theta (sin theta)))) . ^0 X# i( ~, q) c" S: `
); do-x . U0 i3 P, d Q; u) J/ [& K3 _( H, n
; e: x8 h) `0 Q3 v6 @6 W(defun do-y (RB theta)
2 t: j9 I8 a8 `7 @(* RB (- (sin theta) (* theta (cos theta)))) / x2 L6 {- P* R, G; f' C
); do-y
/ i+ Y2 u; n, N4 h$ k2 T# K
% n( c) g# ~# W9 ~& O1 s(defun draw-inv (inv-plst / dirpt plist p) ! E* [" H( \* i) l* x
(command "PLINE" (nth 0 inv-plst)) 0 S4 r1 M5 Y3 I$ O
(setq dirpt (polar (nth 0 inv-plst) 0 1)) 2 q: Z! O0 h8 \* s( A+ z( r
(command "A" "D" dirpt) + b' Z2 N* t7 ]# ?. c" m$ r( h
(setq plist (cdr inv-plst))
7 x% g3 O4 G; I3 \. r8 y7 j. D(foreach p plist (command p)) % e e6 K5 P" h) r
(command "") ; S$ s6 J1 h% J2 R
(entlast) 7 ^) B. B! z9 H% E( J% K. }- e1 O
); draw-inv , S- R, R4 e! r. t1 e1 F K% S
! J! |0 o2 N. @ W! T. @6 X(defun ext-trim (p0 DR D / trimcode dist endr)
: {9 [! _3 D4 ]3 a9 m2 {(if (> (car p0) (/ DR 2.0)) ; Extends the involute $ T; H4 z/ I3 ~7 }
(progn
0 ^" s% c- y6 E2 [5 Y(command "LINE" (list (/ DR 2.0) 0) p0 "")
) `* [' @) ~: G) ?8 O& _(setq trimcode 0) + @& v, K% E9 K
); progn 1 K+ K; l* F! M* i+ m* `' ]5 }
); if / ]; \! ?! q( m9 n$ l. w0 F3 @: P
(if (< (car p0) (/ DR 2.0)) ; Trims the involute
# P- N2 A" [- ?3 D7 ?5 R+ E" n(progn
8 Q% s6 U+ B" _5 D5 E7 x/ [(command "CIRCLE" "0,0" "D" DR); Root circle / _9 e" l3 x5 H: k8 U
(setq dist (- (/ D 2.0) (car p0)))
- b" D- q5 q- `6 Y/ e/ O' t(command "ZOOM" p0 0 t, P* c4 _( t
(polar p0 0.6 dist)) v# R; m6 I# R$ g) r
(setq endr (entlast))
* e0 _( X) \* Y(command "TRIM" endr "" p0 "") 7 g, {! T M( z- s4 P
(command "ZOOM" "P")
% R0 \0 T0 M8 z: m(entdel endr) $ E; {- W, N3 B6 E! m0 c
(setq trimcode 1)
) q' k, x$ a! O- {8 J); progn 1 B3 f6 s4 T. h* n2 [' p% j; {0 d/ F
); if
4 M$ ^4 K; S2 Z+ w4 k( F9 Gtrimcode
c" J4 G* j1 b' i3 Y/ L); ext-trim
- k, l# F9 t9 z7 i
1 C2 n0 [2 @6 U(defun draw-top-line (D DB N RO / theta-p xp yp alpha : N+ u. Q$ r, |* x9 u f9 h
beta tang angend inv-endpt lend) i! f) ^. Q" |/ P1 E
(setq theta-p (sqrt (- (* (/ D DB) (/ D DB)) 1.0)) 2 C% h2 N: i$ w! N) ^
xp (do-x (/ DB 2.0) theta-p); This section 3 F( O1 S0 ~% i: t; E
yp (do-y (/ DB 2.0) theta-p); sets up angles - ~* T% C4 b& y& y4 n4 S/ |9 D
alpha (atan yp xp) ; for drawing a
4 i/ J# W9 X6 K6 Iabeta (angle (list 0 0) (last inv-plst)) 9 r. v% N' Z7 P: o
beta (- abeta alpha) ; line across the
, z4 u4 y1 y" c% N2 q1 z; p$ ltang (/ pi N) ; top of a tooth 6 e. e; y8 d1 O/ f: B a9 U* i8 \
angend (- (+ alpha tang) beta)
5 s& ?6 ] u7 o! p: _! \1 Cinv-endpt (last inv-plst); This also creates , \/ U y/ i; d/ w
lend (polar (list 0 0) angend RO); the tooth
4 B& l2 X' g7 A" C& @) _6 y); setq ; thickness.
I8 l- K7 M- L0 a1 Y4 y& H(command "LINE" inv-endpt lend ""); Draws the line / G8 h8 R4 L/ T; v1 b! Q
(redraw) ( H! J2 t" z) d& }9 `
(entlast) # {! G3 J4 N+ F% p$ ]7 s
); draw-top-line
3 X* \6 l1 o2 K8 V8 {! u" I3 N/ |- g+ m6 q% Y/ x: N7 D* H
(defun mir-it (cvent linent / pt) 7 d' i7 \; K4 {1 u
(setq pt (dxf 11 linent)) 0 A3 G2 F u) f4 _. ?5 @- f# ~
(command "MIRROR" cvent "" "MID" pt "0,0" "") $ K* n5 ?6 L& H2 W4 Y1 G9 w
(entlast) 4 N% _, G4 D5 N* C4 y+ w2 o
); mir-it 9 C* i# R( @, x
( [5 ^' h. t# U! O6 o8 V$ x$ T(defun segment (DR N en / p1 p2 ang dist midp p0 pang
7 r9 `, S4 r) O1 ]: b) N8 x! _pang2 p p3 ent3 entl1 entl2 en1 en2) # w. U8 Z( N' x$ U
(setq p1 (dxf 10 en)
7 X# H2 A3 Q- C' V% z- Fp2 (dxf 11 en) 5 z S2 G: Z0 m( z/ m
ang (angle p1 p2)
1 Q4 `0 E( V: R% ^5 A! D; }+ u, rdist (/ (distance p1 p2) 2.0)
2 {# M' [* f6 X' fmidp (polar p1 ang dist) , r% C; N$ C: b7 p ~
p0 (list 0 0)
8 k4 P2 B6 _2 M5 R2 a8 ?pang (angle p0 midp) 1 n7 I+ H. U# j# v1 G, ?/ r
pang2 (/ pi N) 7 @ h3 u m Z4 s
p (polar p0 pang (/ DR 2.0)) r% i- t' a, \& @' v; ~9 w
p1 (polar p0 (- pang pang2) (/ DR 2.0))
# U+ T' S2 ] J" q, l2 `5 g- {p2 (polar p0 (+ pang pang2) (/ DR 2.0)) 1 r5 t0 S! y8 J! b9 V
p3 (polar p0 (+ pang pang2 pang2) (/ DR 2.0)) 7 Q: v) o3 ^9 H9 V d. w1 `# C3 i
ent3 (entlast); This is the tooth p-line + _. W/ A+ }& N) f0 N4 J( P& V2 X
); setq ) j9 k0 J6 y( S7 ?2 {; B1 t
(command "ZOOM" "W" p3 p1)
! H4 v& G. l% y+ B5 ]1 Q k(command "CIRCLE" "0,0" "D" DR) ;Root circle , P- j2 ?& |. I* l- j9 ^4 f- ]4 O5 g
(command "TRIM" ent3 "" p ""); Trim the root circle 4 ~* u( }) h& x$ i6 {9 s
(command "ZOOM" "P") % p3 m4 p# C6 a' a
(command "LINE" p0 p1 "") ! u8 s' ^, T1 e
(setq entl1 (entlast)) % ~9 ?. Z: {; M* O2 B% `1 H
(command "LINE" p0 p2 "")
# `: K- ]8 i0 ](setq entl2 (entlast))
" B4 t7 G! T4 N! z- `( Y2 S! m(command "TRIM" entl1 entl2 "" p3 "") 2 O+ }0 }$ _0 ]' L n4 Q
(entdel entl1) 6 `1 M5 v. d; |, i8 n
(entdel entl2) * Z: h/ ^, R8 V( Q* g( i
(entdel en)
, ^* l& v3 E- @0 e( A9 z, d1 d(command "ZOOM" "W" p3 p1)
" j- M6 _. B- W4 [4 m% [. S* ^(command "PEDIT" p1 "Y" "X")
- m, p/ a- ]+ k! ]$ w" Y(setq en1 (entlast))
; b3 Q$ P# L j; X* [) l3 \' |(command "PEDIT" p2 "Y" "X")
5 P6 M2 d- I! x1 n0 ](setq en2 (entlast))
6 v0 ~% x3 z7 q, F- X# ](command "PEDIT" en1 "J" midp en2 "" "X") 3 @7 F" n }4 e5 B: G. A; \
(command "ZOOM" "P")
' }+ s1 F; M+ }7 v7 f: t& y' Z(command "ARRAY" p1 "" "P" "0,0" N "360" "Y")
) s) g7 ^* J+ \); segment
4 ^% w2 M) _" p* w$ Y3 Z' m
3 r( J" ?& U3 c: q$ D% `(defun c:sg () ( E1 d, u8 Q8 S
(setting)
6 S" q6 b1 P+ T H; v(spurgear) - k. j! S/ D. C' Y
(resetting)
$ v/ ^" x# I# C" y(princ) ' S7 O. g* i7 L/ u. u9 f ^2 S! n
); c:sg
2 g9 [2 z3 N& Q0 Y/ F' f- y$ K O* i- `6 J f( X" e
(prompt "\n**SPURGEAR.LSP Loaded!") - |! R- S4 h8 i; N8 H* F
(prompt "\n Enter 'SG' to start") ( M% W4 g+ Z. c% F3 m8 j
;;;end suprgear.lsp
2 _( K. ]+ e! K% Y6 Z; e; M打開CAD圖形后點擊“工具”菜單→AutoLISP→加載→找到自己所存的* i. ]; H9 {% V+ w: A
".LSP"文件位置點“加載”,、點“關閉”,。在CAD環(huán)境下“命令”狀態(tài)欄里輸* }# X( o- ^$ m
入“什么”命令后才能按提示使用? |
發(fā)表于 2007-10-20 03:42:53
QQ好友和群
收藏
淘帖
問題專業(yè)，描述清楚
伸手黨/灌水/看不懂
樓主
