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- (defun recover_snap ( reactor_object lisp_list / )5 |3 h& ?4 }/ Y; F7 B6 f+ q
- (setvar "osmode" $$mpt_osmode)6 J4 V: F3 w6 q2 u
- (vlr-remove $$mptReactor)
9 S6 |; G+ n% {' ^ - )( C, G+ C4 P9 g2 x3 D, |' B: v4 [
0 H7 U4 ~4 L3 L3 b- (defun mpt ( / a b mx my mz )
- F4 S3 s5 y, p; ~0 @$ ? Y - (while (not (setq a (getpoint "\nFirst Point : "))))* j [9 Y5 o# j. O" l
- (while (not (setq b (getpoint a "\nSecond Point: "))))) u% f* e0 d, h! C
- (setq mx (/ (+ (car b) (car a)) 2.0))
1 o$ t4 }/ J. v3 B - (setq my (/ (+ (cadr b) (cadr a)) 2.0))5 \: f7 ~% k' o& F3 v# E$ T, P' s/ G
- (setq mz (/ (+ (caddr b) (caddr a)) 2.0))
- v( E6 G; I% ?+ @3 q4 ` - (setq $$mpt_osmode (getvar "osmode"))
5 k1 E+ D- U- p& {0 Y" M - (setvar "osmode" 0)
( b$ T/ C8 ~ E- d# R8 Q: I - (setq $$mptReactor (vlr-lisp-reactor data '((:vlr-lispEnded . recover_snap)))). y5 z- _6 o' H" `" T# w/ ~% d0 u
- (setq pt (list mx my mz))
) v8 c# {3 V8 W - )
+ F3 @) |- I+ b; G6 V) I - ;;******************************************************8 k0 O" Z% `5 B3 }
- ;;预定义一些函数, Z; V) `' J" d; \, m
- ;;定义平方函数
) Z; F4 X. ^0 f" ]# F% I- [3 S6 b - (defun sqr (x)+ s3 J5 f: N: R6 E$ j
- (* x x)3 D/ ^( F. L% z. e( {8 x
- )
* ^2 m. R1 D: l6 Z( ~- p& P - , T4 A9 H$ v: y# K- w
- ;;定义求一元二次方程的函数
' {% w4 [/ r8 G; o6 J - (defun roots (a b c / t1 t2 x1 x2)
1 O0 w F! @. N9 [# h o - (setq a (float a) b (float b) c (float c))
; r/ o, u7 l" J) V5 e5 @ - (if (/= a 0)
' s! @" }* U6 J+ Q - (progn! |( w0 w6 Q, o/ l- a% E
- (setq t1 (- (* b b) (* 4 a c)))2 L" t$ L; K$ V( c/ H* E+ r( k! v
- (if (>= t1 0.0)6 s' O2 Q' Q6 H# C
- (progn
: A6 \& h+ T5 e0 J& M - (setq t2 (sqrt t1))
/ z( {3 P- c$ k, K - (setq x1 (/ (- t2 b) (* 2 a)))* s1 Y1 c$ w5 s1 ]8 X# |
- (setq x2 (/ (- 0.0 t2 b) (* 2 a)))
a1 i( C8 w j r- { - (list x1 x2)
- K. s1 Q' c6 g G - )# n1 O0 S4 N! m m6 G% [
- (progn1 w, K& q) E9 s2 S/ p! g: U7 K
- (alert "\n根是复数.")7 ?7 }4 c, p0 c7 P4 A: c
- (setvar "cmdecho" oce)
1 N1 r: H6 ?( X3 A - (quit)
4 s$ S% E) J+ |$ G' R. T - )
! K; e4 {6 ^0 Q) Y6 N - )
- h+ ]: @5 {8 `2 `, X* a - )
& o0 \) \1 C7 N; ?0 Y! w2 @0 E - (progn2 ~% k7 K0 f* x% X8 c
- (if (/= b 0)1 q6 b3 u: V6 D: B3 h
- (setq x1 (list (/ (- c) b) (/ (- c) b))) j, r0 m0 ^- C, D; R
- (progn) r1 S j4 P l P9 G+ J- K8 @# S+ P
- (if (/= c 0), f; |7 }, z$ Y3 s7 c
- (progn
( G& X! R0 L; f3 g7 e- M - (alert "\n无解")6 x9 [& i5 \. q6 {! q& k
- (setvar "cmdecho" oce)
+ }: b9 ?% s. `& } - (quit)! o: Z* O* o) k# q
- )& v" ?5 _5 d9 Q% X, @+ K
- (progn
5 X$ l B1 N& K5 d* J) D4 D2 r - (princ "\n无穷多个解")* W; Z0 I+ A4 `
- (list 0.0 1.0)
/ j* O8 X t( |7 S, T& J$ C - )& \) O3 F) n5 D
- )
7 ^6 n' p/ a: e4 a$ h7 x9 [) g - )3 u8 G* i" Q( t8 e% x" S
- )( {9 g: J% B! C3 u8 S: L- B
- )( K) R' |% S- m6 A. Z5 u
- )
2 v, i7 x% h0 J/ b8 \* d# W* M! n - )/ e2 k ?# t b% G7 x5 X6 f
- ;;;*************************************7 x8 K( g: ^' X9 Z" Y* P3 c
- ;;;取点,并进行座标转换以及判断和坐标交换
6 q7 a) g- u( G( A3 l2 f5 m- F2 r - (defun C:aaa (/ p1 p2 p3 p4 pch pm dm pm1 pm2 k1 k2 k3 k b1 b2 b3 oldmode oce xxx yyy zzz. Q5 ~9 Y- h9 F6 P' R7 x) O
- rmin rmax short1 long1 short2 long2 intp do p23 0.5h yy kk bb sx1 sx2 sy1 sy2)5 ]9 N+ P9 E0 C8 f% I
- ;;(defun C:aaa ()( D2 v, a8 Y) [2 z! V9 O
- (graphscr) z5 q S& i) i, s: a( a
- (setq oldmode (getvar "osmode"))
. ^/ n" \, k8 @0 S2 P - (setq oce (getvar "cmdecho")), ~7 N& j# {$ z: B ?! k& v
- (setvar "cmdecho" 0)
4 F, T$ B" K7 Y$ ? L9 ~$ i - (VL-LOAD-COM)1 R. x5 ]+ S& q6 D7 F! x
- (setq AcadObject (vlax-get-acad-object)
' F7 ^7 C- v f7 u6 ~3 c( o' S - AcadDocument (vla-get-ActiveDocument Acadobject)
8 L. q) M% O( ? - mSpace (vla-get-ModelSpace Acaddocument)- G) C( A1 I6 h4 x
- )
: p1 a2 G1 k6 i3 h' l) b - ;;取点,并进行座标转换-----------------) S C9 n ]! U7 ^: ?* d8 Y
- (setq p1 (getpoint "请输入第一点:\n"))
5 c7 |2 _" A" l @% j5 G - (setq p2 (getpoint "请输入第二点:\n"))1 y4 j; T& z% t' [& c+ T4 Q
- (setq p3 (getpoint "请输入第三点:\n"))# m+ w9 y& g8 i: }
- (setq p4 (getpoint "请输入第四点:\n"))
% \% e6 z) M. }) Y# | - ;;car: Returns the first element of a list* |% }0 B" n/ w
- ;;cadr:Returns the second element of a list
. g6 v1 B8 ~3 M8 C& h7 P - (setq p1 (list (car p1) (cadr p1)))! P9 D( T" {+ L8 I; p! n& \; {
- (setq p2 (list (car p2) (cadr p2)))
6 A( }6 ]6 J, t- M6 Y5 d5 s - (setq p3 (list (car p3) (cadr p3)))2 S; X& o& Q0 C& U8 k% _7 r+ e
- (setq p4 (list (car p4) (cadr p4)))
' z" v6 e# F2 w& L+ @0 m/ @ - ;;定义两矢量之差----------------------* }' H. |: T/ f/ U, H0 ]. {
- (defun sub (x y)
0 f5 ^& N6 F0 [! O B - (list (- (car x) (car y)) (- (cadr x) (cadr y)))0 e& {, u* z0 h( J9 a( m
- )
5 N- Q# a2 |' a - ;;定义矢量之叉积,即二阶行列式之值-----
$ o% O% I7 j! s- }- ^8 ^1 Z. f" u - (defun det2 (p1 p2)3 X5 o Q4 J& |. g9 ^" {9 G
- (- (* (car p1) (cadr p2)) (* (car p2) (cadr p1)))- W4 A) @2 ~5 V& N
- )
0 T2 G8 [" D- A, H2 e - ;;定义三点的行列式,即三点之倍面积-----1 z) Y. Q3 g& c( c$ X
- (defun det (p1 p2 p3)1 i4 T9 B8 f; g9 n$ T
- (+ (det2 p1 p2) (det2 p2 p3) (det2 p3 p1))
1 Y3 H0 A t+ W3 C6 K4 L9 x4 o - )+ u2 z# h/ H: b& s" [; V
- ;;定义没有方向的夹角------------------5 }4 ]& ?' W( C6 V. y
- (defun ang (p1 p2 p3 / x); \- l1 y/ o6 S7 \& s
- (setq x (abs (- (angle p1 p3) (angle p1 p2))))
0 @6 t1 ~! \2 s3 _" u& }: d, y. p - (if (< (abs (sin x)) 1e-8) (setq x 0)% _+ }6 }5 v% i F
- (progn (if (> x pi) (setq x (- (* 2 pi) x)) (setq x x) ) ) ) )# G3 H& x% x, R I! M8 D
- ;;判断点是否在某三点形成的三角形内----* A# ?7 E: ?0 t7 }0 R% V5 r/ [$ }
- (defun inner (p1 p2 p3 p4 / x)+ E, T! N# Y3 ?. i6 X1 x6 C: X
- (setq x (- (* 2 pi) (+ (ang p1 p2 p3) (ang p1 p3 p4) (ang p1 p4 p2))))4 e0 b( [! n7 G- b& K9 d
- (if (< (abs x) 1e-8) (setq x T) ))
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发表于 2010-1-5 09:59
楼主