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。
0 C0 i/ R9 C7 z5 ]- k这一辑是对话框，题材是三维，在三维中和二维有些差异。
' W: Q2 f0 k) P& O/ i1 N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：- Q$ K3 [9 ]$ y3 z1 b. X% w$ B8 M; U
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下面还是来看程序代码吧：
4 d+ _0 x$ B9 P9 w9 r! Z3 X2 h' N+ b9 u;;;简易3D法兰绘制
, t' {% @* G4 u$ W! ^/ J' Q7 h0 P;;;使用时必先保证D盘的example文件夹里有flange.dcl和flange.sld7 V; m, \ C0 e$ c3 N1 T3 x7 l7 G
(defun c:flange ()0 _: | x- `0 x8 z
(setq index (load_dialog "d:\\example\\flange.dcl"));加载对话框
, H9 o7 Z: T+ S' e (if (< index 0) (exit))
T) g5 ^6 [) \ L, J0 M% M (setq next 2)2 Q9 B, K3 S" e& Q% M+ n
(while (>= next 2)9 v( ] K1 { X( b2 s# m
(if (not (new_dialog "flange" index));初始化对话框$ X3 [5 g% \, w0 Q; W
(exit)
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(show "key_image" "d:\\example\\flange.sld")& [, R2 d5 _. r" w! n. Y
(set_tile "key_D"(rtos 100 2 2));初始化控件
. K, Q. T! O% g (set_tile "key_M"(rtos 50 2 2))
: c8 x0 ?! W5 | c8 X) @ (set_tile "key_N"(rtos 25 2 2))
t2 c) @1 s2 S- e) b U6 x (set_tile "key_H"(rtos 50 2 2))
" s0 L/ t f3 ~( K (set_tile "key_T"(rtos 20 2 2))
4 |& V) ^% G+ C6 @2 [) ~5 H (action_tile "accept" "(getdata) (done_dialog 1)" );accept动作* ^5 ~- b2 b3 z& B" N8 Z; A: M
(action_tile "cancel" "(done_dialog 0)" );cancel动作
+ O5 T {7 W+ Q5 S3 V+ q5 | (setq next (start_dialog));显示对话框! [: K( x* ~% `8 u
(cond
. j/ @0 [) O$ F4 r8 L ((= next 1). y5 S* m4 E# l5 W( c; S0 u; F/ C
(draw)
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((= next 0)% `: S9 J% Q2 Y6 z
(prompt "\n取消了法兰绘制")
/ R4 z# w+ u( t8 ~- F3 n )
6 P& m* e5 \. b- L' C: [) Z );cond; |* x5 y' o9 ?0 }
);while; m% ?4 ^3 ^/ k2 v$ S! Y. Y. C( W
(unload_dialog index);卸载对话框
* |2 D6 d- l! N1 d( X o F/ e (princ)# b+ j }2 C. r# X/ Z# C9 {6 `5 a$ n
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;;draw* M1 n3 D# H$ v' s: o d* E
(defun draw();/ 1p 2p p0 p1 p2 p3 p4 p5 s1 s2 s3)
* d1 G- K! A; c/ P2 |8 e4 j (setvar "cmdecho" 0)
- \4 o2 [/ m, u+ s/ p (setvar "osmode" 0), m. T* @& X$ l2 u/ V! U+ n+ f+ G
(setvar "isolines" 20)
0 d7 B* U6 H/ k7 O5 |4 f% b+ C; q% y (command "ucs" "" "");在wcs中工作, r7 K) q7 s* i* U k" p6 M
(setq 1p '(0 0 0)" Y4 C6 W" U: e; B1 c; T
2P (list 0 h 0)
' H; S& X; ^3 N p0 (polar 1p 0 (* 0.5 n))
* s e: T' t/ L' v! M$ A p1 (polar 1p 0 (* 0.5 d))4 F5 b9 ^( u% A- Y
p2 (polar p1 (* 0.5 pi) th)
2 Q3 m3 ^+ \! `# z- G+ t4 ? p3 (polar p2 pi (* 0.5 (- d m)))
" S/ F" N" n/ w+ j4 J F4 ` p5 (polar p0 (* 0.5 pi) h)7 Q, |. E( [' F B
p4 (polar p5 0 (* 0.5 (- m n))) z8 n9 {: U" N
3p (polar 1p 0 (* 0.25 (+ d m)))
% D$ y) {' v/ i7 U3 O3 z 4p (polar 3p (* 0.5 pi) th)4 _* U3 h' R" f
)
% F7 _1 e9 _0 e) ~. D3 T; r7 d (command "pline" p0 p1 p2 p3 p4 p5 "c")
0 U2 Y$ t; M o( ? (command "revolve" (entlast) "" "y" 360);(entlast)获取最后生成的图元
% u- \/ ]+ V( |- b" i* a (setq s1 (entlast));做三维，常常需要把一些后面用到的对象保存起来, v4 \/ [6 _+ T
(command "ucs" "n" "x" "");ucs绕x轴旋转90度% y5 o" \* u1 p/ a+ _
(setq 2p (trans 2p 0 1));;点从wcs转到ucs，这是三维重点
1 |% p( m9 f4 Y8 w4 W U (setq 3p (trans 3p 0 1))
2 i# e" D$ V$ I" N (setq 4p (trans 4p 0 1))
% f2 i9 ?& B* l. r (command "cylinder" 3p (* 0.0625 (- d m)) (- th))0 {4 x# x. s$ c' p: a; v. x3 k
(setq s2 (entlast))1 L& {. I4 a" M$ |) k
(command "cylinder" 4p (* 0.125 (- d m)) (* 0.2 th))' b! q. Q* t# T5 e& b8 F R3 [
(command "union" s2 (entlast) "")4 X# }$ k5 U$ n& L# c9 I
(setq s2 (entlast))2 Z3 A$ J% ~) [$ E$ W9 A6 i
(command "copy" s2 "" 3p (polar 1p (* 0.5 pi) (distance 1p 3p)))9 V( f {2 K( k$ G0 W* y& ~2 F
(setq s3 (entlast))9 q1 {( i6 u/ L) h/ S
(command "copy" s2 "" 3p (polar 1p pi (distance 1p 3p)))' g2 h3 Y( `9 b* q
(setq s4 (entlast))9 L9 s# `- `& y' L
(command "copy" s2 "" 3p (polar 1p (* 1.5 pi) (distance 1p 3p)))
4 N% \3 c, X8 ^. x (command "subtract" s1 "" s2 s3 s4 (entlast)"") Q J5 h0 d% r" Z: ~* R( H
(command "VPOINT" '(1 1 1))
( ~9 e, U5 j( G (command "shade")
8 [& _0 N! H$ n' B# q- r% j (command "zoom" "e")
' u. W' y$ f. T( X) p (setvar "cmdecho" 1) z! _" l& y3 ~
(setvar "osmode" 4133)8 Y% R: O" Z# k
(princ)' h6 A6 Z+ W2 t7 l7 x2 W
)9 u F( S) R: [" D! t3 R
;;show函数将file_name幻灯片显示到image_name控件中
1 W1 E7 M$ E5 g7 p# E% F(defun show(image_name file_name / x y)
; g" @2 P2 K3 g4 G# e6 e' p |6 E (setq x (dimx_tile image_name));取得image的宽高& U0 r4 v" k a* {
(setq y (dimy_tile image_name))
; h5 p' `9 ]( c: Z (start_image image_name);幻灯片处理开始, v8 r9 D4 N/ g1 D: u. U
(slide_image -10 -25 x y file_name);幻灯片处理，(-10 -25)为左上角点3 J/ j. n4 a1 O5 V% |
(end_image);幻灯片处理结束
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, I* e }2 `$ {4 a* a8 ]" c3 s;;getdata获取编辑控件的值
+ `# C1 x" ?" c2 K(defun getdata()
0 B" p. k2 ?4 _: E (setq d (atof (get_tile "key_D")))
& G. g0 C9 K9 @/ f) B (setq m (atof (get_tile "key_M")))
7 W _4 T9 A N8 _7 O (setq n (atof (get_tile "key_N")))7 J" z9 F+ H4 h4 p+ H$ F& v; |0 E: R
(setq h (atof (get_tile "key_H")))
5 P% U1 f. ~- T (setq th (atof (get_tile "key_T")))
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$ H$ p& T- {: e1 q5 {& U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$ \8 S% y7 i5 ]
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发表于 2008-10-30 15:39