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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
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;;;= 将椭圆转化成多义线 =: E: ~) B' C o8 y
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(defun fcp::ellipsetopline
7 l: u1 H* I u+ d- Z7 g (ellobj / spoint epoint
& P% d8 `2 t! r1 @' _7 D% a str num1 num plineobj8 f9 ^: ^* A/ R' [8 u W: Y0 G5 I
plineobj1 points npoints vpoints
! W7 k, @. Y0 v% }. E 2dpoints
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(setq spoint (list (vlax-safearray-get-element
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num (vlax-variant-value (vla-get-startpoint ellobj))
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(vlax-safearray-get-element num 1), T; ~$ n5 T" N. _$ K& y0 D
(vlax-safearray-get-element num 2)
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/ N/ R, T0 q+ }. n" x4 F* P epoint (list (vlax-safearray-get-element5 s3 W1 E# b; y5 Z5 J) ]! ~
(setq
1 D& k3 n: C9 L' ? num (vlax-variant-value (vla-get-endpoint ellobj))
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)
+ w# a0 Z& ?1 z l) \! W0 J (vlax-safearray-get-element num 1)
5 e- _1 X) @' ?2 R$ J" o (vlax-safearray-get-element num 2)
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(setq plineobj (car (vlax-safearray->list, F$ ~8 i) y, H
(vlax-variant-value (vla-offset ellobj -0.1))- ~" u; k9 L4 F: Q
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(setq
0 x, G* u" N9 | plineobj1 (car (vlax-safearray->list4 I# [# m, g0 Q7 W# s% A0 T6 F
(vlax-variant-value (vla-offset plineobj 0.1))
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(vla-delete plineobj)
$ K$ P' X8 q. i( j4 a) u# C(setq points nil3 I/ T* f: O( a1 M4 r* a
num -19 k9 m9 K+ r \$ S4 q( h" A3 ?
2dpoints nil
# c$ ?9 ^; J( Y3 I7 O, ~) Q)
( j3 C1 X8 D! R4 ^- D8 }; t(setq
5 t+ d8 D4 v3 v7 D/ G+ p) ] points (vlax-safearray->list! [/ g3 N! M: R5 t
(vlax-variant-value (vla-get-ControlPoints plineobj1))) x) h- O9 W: Q
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)
6 c6 p, V. p6 L) R% \(vla-delete plineobj1)! C; X6 r* i" I7 M
(setq npoints nil
! n: I; L. I* R' w num (/ (length points) 3)! m& K. a( U' V
)
+ a6 y* ?7 _! a$ x; h* E(repeat num) D0 B- f: x/ b: ^0 U* D& d# ?
(if (>= (length points) 3)! |0 Q8 x" H: y
(setq npoints (append! k8 h, {: y: X b! A
npoints0 v/ t& Z: _/ K: f9 F4 z8 [" n0 T
(list (list (car points) (cadr points) (caddr points)): B9 Q s( T" e4 v
)
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points (cdddr points)- z5 x. B+ ~& d4 X' n2 ^
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)
0 }# y0 n, u8 X6 d6 |(setq points npoints# P. n) F$ J; s6 T. w
vpoints (list (car points))
/ e9 ?' W: a7 b" R num 1- d' S0 O+ C2 s4 U
)
9 @+ \+ _2 G6 X! r: V4 t' [(if (> (setq str (length points)) 16)& o% j* U( m: g# \6 y: |3 }
(progn
* { |, q% F4 p- c (setq num1 (fix (/ str 16)))
3 s+ v+ B& x0 U |3 }( V (while (< num str)
- i3 F& Q8 N# V; C* v (if (= 0 (rem num num1))
/ H/ Q5 Q- \' z" Z9 b9 T" G# L& p (setq vpoints (append vpoints (list (nth (- num 1) points))))0 f1 I |8 p* Q* c
)
2 K& F5 d2 Y1 | (setq num (+ num 1))+ p5 s9 {/ X$ P" h- i
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(setq points (append vpoints (list (last npoints))))
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( ?! y W0 P `)
! x7 v' [0 s; K; I' z(foreach num points' q" f( G6 v7 @8 _& L
(setq points (subst (vlax-curve-getClosestPointTo ellobj num)
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points& j+ g$ x B4 n* X8 t/ w; D
)
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(princ points)
2 P& y5 O2 I, y" N(setq points (subst spoint4 {8 M5 b1 Q. T& A
(car points)* l& ~/ y4 {* W
(subst epoint (last points) points)' w, A1 U& L2 n
)
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(foreach num points0 v* O+ u& K1 \9 _5 e& r) j1 U' O
(setq 2dpoints
& w3 h5 W5 X1 [6 ~ (append 2dpoints num)
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% l& g! H K" [* J1 X(setq vpoints (vlax-make-safearray) R2 {9 q* y% c7 ?1 I6 V
vlax-vbdouble
4 j4 G7 G7 C' b& W" p: S- x (cons 0 (- (length 2dpoints) 1))0 g l# e, ~; f7 U% _# z+ Y
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)
P4 D O: H: o(vlax-safearray-fill vpoints 2dpoints)2 I' c$ e3 d4 x8 `8 m* Z i
(setq plineobj (vla-addpolyline fcp::mspaceobj vpoints))
. l; `) t; E$ W% g3 p(if (and (= (car spoint) (car epoint))
% y+ b; A Y1 R* ]+ R (= (cadr spoint) (cadr epoint))
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6 S9 S+ i- F8 |2 W. w2 n! P: }: o (vla-put-closed plineobj :vlax-true)
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1 Q# q% D3 \( V" r+ \3 u(vla-put-type plineobj acfitcurvepoly)# `9 K1 d8 p* C7 R, x/ q6 n% f! @
plineobj7 e- w N9 A r2 b5 K! s8 D$ h2 F) o
)
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% M* @9 {& \+ I再配上变量定义：. f9 |+ I! e& A
(vl-load-com)% q0 \: ]0 {$ A; n$ v
(setq fcp::acadobj (vlax-get-acad-object)
0 Z2 ]: C( h% F, x; z3 t" Y fcp::acaddocobj (vla-get-activedocument fcp::acadobj)+ c4 J8 Z9 Z$ f; f% s& m
fcp::mspaceobj (vla-get-modelspace fcp::acaddocobj)
+ X$ U! }, s# b7 c fcp::pspaceobj (vla-get-paperspace fcp::acaddocobj)5 W, A# ?# R* p
fcp::docobj (vla-get-documents fcp::acadobj)3 X# ~& c, U. Q; l" a1 C0 o
fcp::blocksobj (vla-get-blocks fcp::acaddocobj)
9 ]8 P, @1 N5 }. O$ x5 z6 U/ q2 K3 V fcp::layersobj (vla-get-layers fcp::acaddocobj)
1 C) W- J3 |" Q1 [ n8 Y; { fcp::textstyles (vla-get-Textstyles fcp::acaddocobj)
+ y2 t! X4 Y( S4 F& I3 _. }$ s fcp::linetypes (vla-get-linetypes fcp::acaddocobj)
$ v3 ~4 G) N( O7 S8 w3 e1 J8 O fcp::menugroupsel (vla-get-menugroups fcp::acadobj)# {8 Z' z+ v3 n% s
fcp::menugroup (vla-item fcp::menugroupsel 0), i' U1 \: y6 [
fcp::menuobj (vla-get-menus fcp::menugroup)
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发表于 2006-10-11 09:23:40
发表于 2006-10-11 13:25:57