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。
2 H8 a. Y. f% S2 c6 O这一辑是对话框，题材是三维，在三维中和二维有些差异。
) |% g! N' j6 i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：1 m! B. N' |5 k; ]
3 [. J- {5 G& H0 y7 Y! r, H& ~) d下面还是来看程序代码吧：% g3 D3 \) `. B5 k" s+ j9 n
;;;简易3D法兰绘制+ g: H% g3 q4 I3 H
;;;使用时必先保证D盘的example文件夹里有flange.dcl和flange.sld
- r/ k2 ~# {* q7 K- y(defun c:flange ()+ u' O- I z; h
(setq index (load_dialog "d:\\example\\flange.dcl"));加载对话框
! T4 o. Z: ^ x8 } (if (< index 0) (exit))
0 ?" [- Q. I7 H2 H6 n- [ Z# x (setq next 2)
$ [- H+ b0 g c/ X! { (while (>= next 2)
& E# E$ P; [% A- G- B, } (if (not (new_dialog "flange" index));初始化对话框
0 {* Y$ x- N5 g (exit)
3 r. Y* X. P+ G! L' z% y )
% D+ d& Q U2 B& W3 ^ (show "key_image" "d:\\example\\flange.sld")
& [) Z$ @+ c+ @# m% L+ V2 D (set_tile "key_D"(rtos 100 2 2));初始化控件
8 V: z7 U) W/ l% F (set_tile "key_M"(rtos 50 2 2))
0 U( C# z4 ^3 ~$ F3 E5 ?- g# x (set_tile "key_N"(rtos 25 2 2))6 x& ^ h' [ Q1 u3 [
(set_tile "key_H"(rtos 50 2 2))# s O. ^; E2 } V8 f3 k# L- I" j" M
(set_tile "key_T"(rtos 20 2 2))0 U$ X, d% x7 @7 ]3 V' S, k
(action_tile "accept" "(getdata) (done_dialog 1)" );accept动作2 `8 T2 q8 y- d/ m+ Z) b+ ^
(action_tile "cancel" "(done_dialog 0)" );cancel动作& _. b( S6 Z9 K# U8 I: |+ X, B
(setq next (start_dialog));显示对话框
, ]4 i# W3 D# [ (cond7 W# s$ \& ?0 \6 `8 g3 y
((= next 1)3 x0 D8 o: X) j$ D+ {' }
(draw)
7 R5 ]0 ^* u* s0 _* S9 M* e )
0 S" F7 ^# m4 B9 w$ B0 |$ O ((= next 0)) a* a% N0 K9 T. }' u- w! v5 _1 S
(prompt "\n取消了法兰绘制")
1 M7 B8 b$ d& ]; M% G. \( K )
9 ]( z2 L3 @, b );cond: m% @/ H. e' F3 G- L- {4 h
);while
! K9 M- v" |0 U/ O- h( J# |& t (unload_dialog index);卸载对话框- m* r$ f! u$ `4 a9 s( `6 ^
(princ)
0 F# q4 G9 ^8 V. _# J. Y/ K )- d) o1 {% B1 _8 v! A+ B! u& b
;;draw
0 L. \! n$ h7 _8 ?(defun draw();/ 1p 2p p0 p1 p2 p3 p4 p5 s1 s2 s3)
% e, @( s# j: V. I7 L* F (setvar "cmdecho" 0)$ Z. ^, i# H: \4 I4 | L( k+ u' \
(setvar "osmode" 0)( z& Z9 i( V$ A7 ^+ g- M' ]
(setvar "isolines" 20)
! H, P- f( ]7 t) ^ (command "ucs" "" "");在wcs中工作, [& o& P6 L$ Z) \3 C% A; h2 l
(setq 1p '(0 0 0)
% N) J* t4 ?( K3 a) F( t 2P (list 0 h 0) E3 D0 A i9 S( |+ F' m. l
p0 (polar 1p 0 (* 0.5 n))
- D) Z0 H6 D! h. [ p1 (polar 1p 0 (* 0.5 d))0 y' S! |1 t% d" f* @
p2 (polar p1 (* 0.5 pi) th)$ l( d0 z5 V f; E. P" ~) t! }
p3 (polar p2 pi (* 0.5 (- d m)))
2 b& J4 V) ?; n# t* Z7 M3 [ p5 (polar p0 (* 0.5 pi) h)
( ]6 J3 M( F/ ^: d p4 (polar p5 0 (* 0.5 (- m n))). ?, K, \( P5 o, y
3p (polar 1p 0 (* 0.25 (+ d m)))6 d4 ]6 n5 Q' K! o8 G6 ~' B d& [
4p (polar 3p (* 0.5 pi) th)- I" f. R5 @6 ~1 H" N! G- e
)
7 K; Y8 S) {- J' S6 S; A3 B+ d (command "pline" p0 p1 p2 p3 p4 p5 "c")
# a0 h5 _0 ]1 B" ] (command "revolve" (entlast) "" "y" 360);(entlast)获取最后生成的图元) M/ w! G% ?# ^# Y. B
(setq s1 (entlast));做三维，常常需要把一些后面用到的对象保存起来& u4 c6 y; j8 T7 I. j; |* A
(command "ucs" "n" "x" "");ucs绕x轴旋转90度9 h% I8 v7 R) b7 x
(setq 2p (trans 2p 0 1));;点从wcs转到ucs，这是三维重点$ ?1 I7 C' m5 z
(setq 3p (trans 3p 0 1)), j( L( } [7 [- ]6 h8 y( I
(setq 4p (trans 4p 0 1))5 A5 |/ O7 w, V4 n) J
(command "cylinder" 3p (* 0.0625 (- d m)) (- th))
' q2 T6 ^7 s _1 {' p, q2 o (setq s2 (entlast))
3 S q4 R1 w" e v! v5 q/ S% { (command "cylinder" 4p (* 0.125 (- d m)) (* 0.2 th))
9 H) u4 p+ |4 K# E8 \1 X (command "union" s2 (entlast) "")
! m6 O9 a* H- q8 t2 r2 i; f (setq s2 (entlast))
) w; y) V; F; r/ S (command "copy" s2 "" 3p (polar 1p (* 0.5 pi) (distance 1p 3p))) \. y: j- n; U" j/ p
(setq s3 (entlast))
( C- \- a+ J2 Z (command "copy" s2 "" 3p (polar 1p pi (distance 1p 3p)))+ s! O" L) T' k. c3 T3 V
(setq s4 (entlast))
, V. T% A0 q# i" L, c" x (command "copy" s2 "" 3p (polar 1p (* 1.5 pi) (distance 1p 3p)))
$ D% I8 i7 n' ^* m& V3 E# S( E5 ^ (command "subtract" s1 "" s2 s3 s4 (entlast)"")
( B% _, R' X. s. g' V (command "VPOINT" '(1 1 1))
" z, E" g2 E' X4 [1 U* i (command "shade")
- k/ |5 v9 M3 C% [3 l( _ (command "zoom" "e")) c @$ _& x! N U6 d- M2 I, u- b; _; t
(setvar "cmdecho" 1)6 b2 a% U4 m& F4 H3 U
(setvar "osmode" 4133)0 Z- V3 C6 [. i9 A K2 A' i9 o
(princ)
# s/ H9 |% Y4 E)
( F$ w1 X3 t; }& p2 @;;show函数将file_name幻灯片显示到image_name控件中5 a) G- L, b! i7 h& ? N# N
(defun show(image_name file_name / x y)0 F+ z) G: \" q) w+ i6 c, R! E# e
(setq x (dimx_tile image_name));取得image的宽高
/ B4 l# r' p- I" | (setq y (dimy_tile image_name))
" G9 h" {1 u) y' F L (start_image image_name);幻灯片处理开始$ u5 S) t3 g2 ~' J1 D( U1 O) D
(slide_image -10 -25 x y file_name);幻灯片处理，(-10 -25)为左上角点
2 l/ v" { L' g3 _6 M6 T. H6 r (end_image);幻灯片处理结束2 E) R8 G! T; ]- a7 R6 Y5 y3 U) N
)
/ N S0 k7 M4 L% N9 e;;getdata获取编辑控件的值
2 j9 A- i' k3 r2 h' q8 D v(defun getdata()
- t9 ~) ]3 a9 v- _. Z (setq d (atof (get_tile "key_D")))2 X; ~: I% j1 B9 h; ~( n7 k
(setq m (atof (get_tile "key_M")))- T5 H* m, S& l, S6 M- `
(setq n (atof (get_tile "key_N")))& d( [% e/ I, a, N0 \
(setq h (atof (get_tile "key_H")))5 O+ M, U+ ~4 w" t# x
(setq th (atof (get_tile "key_T"))): O9 p3 M3 E- ^/ S' e- E8 y4 l
)
( C' i. g) [3 D+ {, c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
) Z0 D1 J1 W' O( `. _% p! F8 c
, r- ]1 ?1 m: J
|
发表于 2008-10-30 15:39