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发表于 2006-10-12 20:52:13
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来自： 中国广东广州
《转贴》AUTOLISP程序$ t' G/ a, x* E# M
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;;;======================& x6 c( v, S ?
;;;= 将椭圆转化成多义线 =
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2 n1 T0 G. U* y" L; T) q(defun fcp::ellipsetopline
' ~$ U3 P5 }! g+ Y0 ~' t (ellobj / spoint epoint- G, @5 Z5 z E4 T2 l% V/ c4 n
str num1 num plineobj
4 n T+ E! x1 Y2 e+ ?9 I plineobj1 points npoints vpoints
0 a* x) z5 c1 j: r7 J0 k9 G" h 2dpoints+ m$ P% j8 S; ~- f- r3 n
)( l0 r2 |- R+ F; M
(setq spoint (list (vlax-safearray-get-element
* o5 P: U8 Y V, ~# A# X (setq
* M4 e3 y0 P" s2 S+ s num (vlax-variant-value (vla-get-startpoint ellobj))) s; {; `* c/ ~# }+ g1 A2 l8 u" q6 P7 k
)
7 v6 f# ?; K% k5 f- x3 z% z 0
& `' n( M$ o7 P: v )
0 U; H" ^7 a; @+ h' ]4 g (vlax-safearray-get-element num 1)8 ]% G9 h0 l; c* ?
(vlax-safearray-get-element num 2)
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epoint (list (vlax-safearray-get-element1 ^# l# _( B, N$ n
(setq& ]6 q! q3 d# N' i. s3 \2 o
num (vlax-variant-value (vla-get-endpoint ellobj))# `) m: g! M& {, ?" t9 E* S9 V" E
)4 |5 _- F& {0 V
0
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% `9 o7 d( d/ s! T/ P/ f% w7 R% n* O5 v, h (vlax-safearray-get-element num 1)1 ^) o6 k- ]2 C: Q/ s
(vlax-safearray-get-element num 2)
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)
- Z, _4 g& q- L1 H- M1 ~' K(setq plineobj (car (vlax-safearray->list
9 H. r1 z, Y- c# V: x$ m( d (vlax-variant-value (vla-offset ellobj -0.1))
/ e7 M+ k) Q! H0 W% Y' C )- D: u/ W7 u7 g
)
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(setq
6 I r6 k6 R! s- { plineobj1 (car (vlax-safearray->list, `" U- T+ p0 T; C
(vlax-variant-value (vla-offset plineobj 0.1))
* N' h" Z4 G1 Q9 L) T )
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* n% c) R6 x( _* \7 _; p)
0 d/ C; n4 m) U. ^) K! M7 g0 @! d(vla-delete plineobj)% a; l1 f& N: U) ~5 s
(setq points nil2 U% C2 X3 ^+ e+ d( O
num -1
! d# z3 h1 H+ h% t- H! @8 u 2dpoints nil
]' Y/ m* g6 a7 d& z) I4 \)
, }8 d& W8 e/ l2 i5 K3 `(setq
( {# a5 O1 u0 W" S points (vlax-safearray->list
/ u& I' n; V: I# b1 E& S (vlax-variant-value (vla-get-ControlPoints plineobj1))
: H2 Z' j+ _$ n$ r6 T )
$ R. q' R6 A* _& \0 t% M)
" ]' Q9 d: J' R7 O+ ~(vla-delete plineobj1)4 A: N4 f/ x' K+ _" L# o% D
(setq npoints nil& y) f( i( o d+ {
num (/ (length points) 3)
7 j' Y5 v5 ~5 R6 N0 E); ^% Y* z" i* H3 M0 Z' Z0 t+ x
(repeat num w$ u S, b# I/ [: T
(if (>= (length points) 3)
' [6 `2 p$ h# C$ C (setq npoints (append+ Y! a. v# U7 o6 ?' S0 O
npoints+ N9 Q& Z7 _* }/ W
(list (list (car points) (cadr points) (caddr points))
+ ~3 A9 [ z: m: } )
/ F& J- F# q" e- `; }2 S0 R )
' u9 ]( }' u. w3 @# ?! R8 E& h& Q points (cdddr points)
7 s: S6 }- M: g0 ]5 F Z )
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)3 ` R( L* v9 D/ Q' P' F
(setq points npoints
\1 _6 k# ^6 S: Y4 F ^9 ^ vpoints (list (car points))4 L. Q& X/ E4 e' e5 C, L. J
num 1, U9 e# p6 L9 Q9 j
)
2 z2 b! k5 a$ a4 _; M(if (> (setq str (length points)) 16)* V* X& U6 O7 I+ n
(progn
4 e+ p; W1 x5 x (setq num1 (fix (/ str 16)))
$ B }9 G* o ?& y0 U9 T0 q (while (< num str)
# b( Q$ Z+ D6 n/ g! s (if (= 0 (rem num num1))
8 C- `1 ~- S+ G (setq vpoints (append vpoints (list (nth (- num 1) points)))): I1 C1 z! K) D: \, v( D1 ~
); z3 n; `- D2 Z
(setq num (+ num 1))5 @4 E4 \0 }7 O' f3 U
)) t2 k' |4 Z8 H* G6 k( l9 G/ T: p( r
(setq points (append vpoints (list (last npoints))))
N( I/ H. e6 `$ C* R" g) q )0 O b0 U2 a- r6 [
)
% n% c6 y& G- d: O(foreach num points
3 P9 L! T) Z! q. g% i _ (setq points (subst (vlax-curve-getClosestPointTo ellobj num)
! N& `4 C, l+ S8 w num5 a$ o/ s* e; \. A% j' C0 i2 Y
points9 X, L2 c- y! c% @# y6 y- k
)
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(princ points)
. ^* B. K3 `' ~) o7 {4 \(setq points (subst spoint
. g) Z% b! h, Q/ n" { (car points)) W+ h: `+ u5 L
(subst epoint (last points) points)9 h( [& S- @1 ]# x1 I' H
)
8 N6 n: U! z3 L* N9 F" u3 L)
6 J4 l! ]! q. `) H3 t1 a& C(foreach num points
- ?, V2 {4 m! X, {- L5 x% G (setq 2dpoints
$ [0 {2 O4 _( K2 L- J8 [ (append 2dpoints num)' e! {$ B0 x3 W3 M5 W4 Y& v: V
)
5 G! z8 L- t; n) p' L)
9 C2 K5 J' t! W7 D(setq vpoints (vlax-make-safearray0 I% F) R2 x- j4 B' \
vlax-vbdouble
: m% U* X( b# S& {3 S) T$ R6 b$ \* S (cons 0 (- (length 2dpoints) 1)); a! a2 ]# J0 Q5 O
)0 _" T, ~3 M" ]5 M. a+ L4 }. Y
)5 \1 X. ]! m: Y
(vlax-safearray-fill vpoints 2dpoints)5 J O5 i$ M' s2 `* k& j7 F6 V# {
(setq plineobj (vla-addpolyline fcp::mspaceobj vpoints))
- I4 ?! j2 E# c7 q+ f(if (and (= (car spoint) (car epoint))4 H+ T' G6 n7 [* J, w1 D+ m
(= (cadr spoint) (cadr epoint))! F& Z/ n( H* r
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(vla-put-closed plineobj :vlax-true)8 J# l- V% n) ^
)+ G: ]% J- P4 s4 @) `
(vla-put-type plineobj acfitcurvepoly)2 N3 I% @) x4 a1 H3 C
plineobj
& [- f! i% c3 O% ?/ E7 }& ]" \% k! V). n/ ?1 [$ k' s
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再配上变量定义：. g! o/ [- ~& Y# w, n
(vl-load-com)6 H! W; |" O2 S
(setq fcp::acadobj (vlax-get-acad-object)
4 }: V8 R% W# ~5 _7 ~ fcp::acaddocobj (vla-get-activedocument fcp::acadobj)+ P: [2 e6 ^ ~! o& |
fcp::mspaceobj (vla-get-modelspace fcp::acaddocobj)# b, o* w1 v+ F z' \- W* ?
fcp::pspaceobj (vla-get-paperspace fcp::acaddocobj)
* d9 Y6 A( I: Z3 S r0 n8 i fcp::docobj (vla-get-documents fcp::acadobj)8 o t5 w q% L7 e& }) e' r
fcp::blocksobj (vla-get-blocks fcp::acaddocobj)7 \1 v- w$ U. s! ^. r; ]
fcp::layersobj (vla-get-layers fcp::acaddocobj)+ ]# ]( N! i5 \* L3 t/ ~
fcp::textstyles (vla-get-Textstyles fcp::acaddocobj)
, t8 E" s2 s$ O fcp::linetypes (vla-get-linetypes fcp::acaddocobj)9 k" u( ^) w- b
fcp::menugroupsel (vla-get-menugroups fcp::acadobj): m7 K. a7 W: [
fcp::menugroup (vla-item fcp::menugroupsel 0)/ T4 }& W1 @. |, {
fcp::menuobj (vla-get-menus fcp::menugroup)* ~" M# O2 _ e7 O, M6 A
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发表于 2006-10-11 09:23:40
发表于 2006-10-11 13:25:57