到这一辑为止，我就把LISP编程的各种技术向大家展示了一遍，如果自己下去琢磨，一到七辑都能看懂，也能自己编写出一些小程序，我就很高兴了。6 b6 u( J0 L( w l
这一辑是对话框，题材是三维，在三维中和二维有些差异。
( `! z6 f6 M- s; b. u1 b! L, Y对话框大家都熟悉，是VB的强项，LISP和C++是通过驱动DCL语言定义的对话框文件来实现的，Auto里有base.dcl和acad.dcl，事先都定义好了，稍改一下属性，按需组合各控件就能做出来，善于模仿的人并不觉得它难，而关键是如何来驱动对话框，这就需要掌握对话框操作函数，下面的流程对理解对话框很重要：; |$ n% u8 b) m+ t8 b9 H
3 F, i( a. _3 {! b& t! p
下面还是来看程序代码吧：
3 u5 i c+ V: T' G* x) M;;;简易3D法兰绘制
3 ?: W6 @) O; [# z3 {;;;使用时必先保证D盘的example文件夹里有flange.dcl和flange.sld% E7 q; g! `8 h% i0 w8 y( y
(defun c:flange ()
7 K2 h2 J/ [4 n9 c' \5 j7 ^8 k (setq index (load_dialog "d:\\example\\flange.dcl"));加载对话框
2 C. j' r" v, c# Z7 N (if (< index 0) (exit))
& \) R3 h' L7 Y3 H" k8 B, G (setq next 2)$ Z9 ?) }, A9 P% s, Y! r
(while (>= next 2). T9 C: Y2 S! x4 T+ a
(if (not (new_dialog "flange" index));初始化对话框
2 J% u) \0 D+ K4 y4 P J3 a* w (exit)
7 f5 j8 n: ^" Q! R- E5 A* } )
$ _; X5 w: y: [6 y$ Q (show "key_image" "d:\\example\\flange.sld"). L$ }( k3 @" o* p, `
(set_tile "key_D"(rtos 100 2 2));初始化控件
& D/ w- s) J$ f0 n (set_tile "key_M"(rtos 50 2 2))7 z7 p/ W+ t$ f4 m- n$ k1 j# @1 D, x) \
(set_tile "key_N"(rtos 25 2 2))* J! r( h6 v6 f6 x1 [
(set_tile "key_H"(rtos 50 2 2))- S W/ b0 J; ^7 ^4 T( D/ i
(set_tile "key_T"(rtos 20 2 2)) K) S2 E( @; U: b. M
(action_tile "accept" "(getdata) (done_dialog 1)" );accept动作
S3 b; p2 \0 X3 ^# V+ ^ (action_tile "cancel" "(done_dialog 0)" );cancel动作
- _" h5 H, Z+ S* T+ ?( J7 A: g( } (setq next (start_dialog));显示对话框
6 v- U0 a* S& h8 q; Y G (cond. X* v, W+ Z0 t! f/ d6 [
((= next 1)5 E; Y6 N, O0 ^3 a' M
(draw)) [) I# e" q4 X0 f ]
)
, X" [( P/ ^# h" [6 X: \4 c# t1 H; J ((= next 0)3 F7 F0 m5 S! S2 s7 _6 n
(prompt "\n取消了法兰绘制")
9 Z$ W/ k( I9 ~! X )' n, }- s0 k+ b
);cond+ J! \3 w( F* ?, w/ Y
);while. B7 n0 Z+ g& G9 \6 \/ r) Z/ Q
(unload_dialog index);卸载对话框/ o$ o# @( y; }
(princ)/ w# }7 D* d- w
)
0 B) B8 J0 ?5 m# j7 G5 G% \;;draw7 e7 e; b, J2 c) I9 n1 d6 w" K
(defun draw();/ 1p 2p p0 p1 p2 p3 p4 p5 s1 s2 s3)
/ y$ v' b7 K9 h- k5 n8 \ (setvar "cmdecho" 0)
! N3 B/ E* x- I (setvar "osmode" 0)
% x# p" G; R) C, X& t% I (setvar "isolines" 20)) D. q6 E/ m6 B. P r
(command "ucs" "" "");在wcs中工作
( f) Y1 O/ k. B (setq 1p '(0 0 0)0 F( f, T8 U1 G# Y
2P (list 0 h 0)& b; ^, X5 r/ i/ l1 J+ l2 j
p0 (polar 1p 0 (* 0.5 n))3 d- t- W0 T- Q0 B
p1 (polar 1p 0 (* 0.5 d))
9 G, B. i# }- d8 \, F p2 (polar p1 (* 0.5 pi) th)
4 p5 R$ A5 E" x% s" Z/ ^' F+ ^/ a p3 (polar p2 pi (* 0.5 (- d m)))
9 _- b3 w) M+ R/ T$ Q% p, m% `3 F p5 (polar p0 (* 0.5 pi) h)% {$ c g# P2 {: I
p4 (polar p5 0 (* 0.5 (- m n)))
. V5 v0 |" b% M* u2 k0 R 3p (polar 1p 0 (* 0.25 (+ d m)))
) T4 Y7 E3 }( I- n1 W 4p (polar 3p (* 0.5 pi) th)
: r, l% _% r% g )
3 q& |7 B6 E# Z9 l5 } (command "pline" p0 p1 p2 p3 p4 p5 "c")6 w9 Z. I" g; _ S. X( [
(command "revolve" (entlast) "" "y" 360);(entlast)获取最后生成的图元4 J# P- a8 U0 s0 }, J9 X
(setq s1 (entlast));做三维，常常需要把一些后面用到的对象保存起来
' O$ ?: v S+ j( i0 w: d1 V& [1 d (command "ucs" "n" "x" "");ucs绕x轴旋转90度- \# s( F/ J Y: a* j$ \
(setq 2p (trans 2p 0 1));;点从wcs转到ucs，这是三维重点9 H: `( `! a# Z9 \( O
(setq 3p (trans 3p 0 1))
; o5 V/ \: c% d; { (setq 4p (trans 4p 0 1))
" o+ n0 A$ A" w (command "cylinder" 3p (* 0.0625 (- d m)) (- th))4 }+ N$ k% t5 U0 q3 ^
(setq s2 (entlast)); E- A6 g6 e. T5 D2 O- i4 l
(command "cylinder" 4p (* 0.125 (- d m)) (* 0.2 th))
& @; H. k* I' w (command "union" s2 (entlast) ""): F2 Q F! P7 u. k
(setq s2 (entlast))
P. X, {3 |) j (command "copy" s2 "" 3p (polar 1p (* 0.5 pi) (distance 1p 3p)))
# @9 i9 _" a0 R& W7 b; x7 x n: T- O' @ (setq s3 (entlast))3 e/ B/ i- \) O: R# Q( P- l- I
(command "copy" s2 "" 3p (polar 1p pi (distance 1p 3p)))6 X' c5 O/ G2 i9 h/ A$ x
(setq s4 (entlast))
, E7 D% p0 `' w8 A) `* `! w (command "copy" s2 "" 3p (polar 1p (* 1.5 pi) (distance 1p 3p)))
- O# Q" W) O& V$ L/ M, B- X$ ]" s (command "subtract" s1 "" s2 s3 s4 (entlast)"")
: s X( V6 o+ c y! g! Z (command "VPOINT" '(1 1 1))$ Q+ b v+ J9 T, t) l: ?% i( \, ]
(command "shade")
$ E/ M, N& }9 ?8 k (command "zoom" "e")
: {: t; `$ A: R (setvar "cmdecho" 1)
* v. n% n2 s& ~3 H (setvar "osmode" 4133), o3 h2 m: E# a. g: c n8 @" D
(princ)! O7 O" Y( x& k0 b( c$ M; J
)
4 u8 _* Q- r0 [, e$ h9 S0 y;;show函数将file_name幻灯片显示到image_name控件中$ U, k/ n4 [9 d8 D3 x
(defun show(image_name file_name / x y)
~* G7 N. o& M3 }0 B (setq x (dimx_tile image_name));取得image的宽高: i6 p5 [7 J0 L8 G; {, D& J5 n
(setq y (dimy_tile image_name))
3 E* c" W) j G4 q% z! i7 ?4 E4 [ (start_image image_name);幻灯片处理开始# z- g* K" A" J2 M2 v0 j
(slide_image -10 -25 x y file_name);幻灯片处理，(-10 -25)为左上角点* a7 i) C( J0 |8 O( h+ M1 w
(end_image);幻灯片处理结束
; }* S0 v- e2 n$ K6 ?! E$ U# L) ' r4 B+ q6 M: q( F
;;getdata获取编辑控件的值9 Y/ S1 d9 m3 \/ N3 ]. ?, e
(defun getdata()" a7 T4 X( j# x( W4 X7 ~) ?* v
(setq d (atof (get_tile "key_D")))
, Y$ E2 ~4 J" `" p) N (setq m (atof (get_tile "key_M")))
) I$ `& A# V% X9 D (setq n (atof (get_tile "key_N"))); I; R5 Z3 q$ X+ }
(setq h (atof (get_tile "key_H")))3 [$ n- n3 Z: ?7 m2 T
(setq th (atof (get_tile "key_T")))2 i( e+ }, t- Z3 r I1 `
)
8 S3 p- n! m2 `6 }( |使用该程序时要有example文件夹，放在D盘根目录下，附在下面压缩包里
. w7 h" a' t( _3 y4 k% T' H4 v& ?
- Q# ]0 H' {: x% v( G0 m6 P
( I( n8 c, n5 a3 ~' z |
发表于 2008-10-30 15:39