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。# ?" o5 h2 G9 k# R' |4 S. h9 E
这一辑是对话框，题材是三维，在三维中和二维有些差异。5 \* n2 p1 Y K- v4 [
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：
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" y3 N8 h) o7 n3 h下面还是来看程序代码吧：! c0 s* V; t- `. T
;;;简易3D法兰绘制" q% f: [1 k/ n0 u
;;;使用时必先保证D盘的example文件夹里有flange.dcl和flange.sld i" z" n$ |; Q7 f+ m7 D$ }
(defun c:flange ()
$ p* Z0 o/ n: Y0 h1 J* V (setq index (load_dialog "d:\\example\\flange.dcl"));加载对话框* |' E9 o' h1 c' o! F
(if (< index 0) (exit))
9 o- g. U# ~& N1 u! D: |4 j (setq next 2) g4 |3 f; N8 [
(while (>= next 2)( B- s2 s7 c2 w" Q/ q9 ?. ?
(if (not (new_dialog "flange" index));初始化对话框) q, a. @) R! t$ n j
(exit)
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(show "key_image" "d:\\example\\flange.sld")& B2 i6 Q6 w; p. B8 t6 _0 M* y
(set_tile "key_D"(rtos 100 2 2));初始化控件( d. J( F6 J2 s- m
(set_tile "key_M"(rtos 50 2 2))
- ?! W6 c9 W: c' O3 T- m (set_tile "key_N"(rtos 25 2 2))6 O {2 l( d Z& a$ o& l$ U4 T
(set_tile "key_H"(rtos 50 2 2))+ {( p8 V/ R5 ^" M$ w/ @2 M
(set_tile "key_T"(rtos 20 2 2))! n; x, t6 c& G$ X2 z
(action_tile "accept" "(getdata) (done_dialog 1)" );accept动作0 Z2 c l0 y5 t0 H, A
(action_tile "cancel" "(done_dialog 0)" );cancel动作
0 F* w6 I+ Y9 ]5 i (setq next (start_dialog));显示对话框
1 e) P( o0 @" {& u' C7 C (cond; _# y$ P% ]" u
((= next 1)
* ^. V, c% a$ S8 L7 x; R" D (draw)
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((= next 0)
7 m7 _4 g' k$ z (prompt "\n取消了法兰绘制")
: L5 c) g! u) p' A% _! ]9 f )
. @8 X$ ]/ t3 |! ], E );cond
, J) Z" X5 Z* O' { );while* X& L, n. f$ W: ^9 M# O
(unload_dialog index);卸载对话框
4 T r, ?$ s& [' U; q+ M# w (princ)
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;;draw2 \* u2 G0 c& O
(defun draw();/ 1p 2p p0 p1 p2 p3 p4 p5 s1 s2 s3)
3 P Z" x8 [8 G5 ^( | (setvar "cmdecho" 0)3 f {9 g" _3 M
(setvar "osmode" 0)
+ H, Y9 t" p( V+ l3 u (setvar "isolines" 20) \" M# g4 T) \& Q1 A3 W7 H7 w+ }) B
(command "ucs" "" "");在wcs中工作4 S, L, y$ r: n5 u: F( ]
(setq 1p '(0 0 0)
3 H) E5 K- c5 M5 O: A# x 2P (list 0 h 0)( F' J/ i, h$ x2 H1 ?
p0 (polar 1p 0 (* 0.5 n))# n0 H- l% v" B& q' J1 c
p1 (polar 1p 0 (* 0.5 d))
5 a) x! u2 h$ X p2 (polar p1 (* 0.5 pi) th)
_% l# { C0 T8 X p3 (polar p2 pi (* 0.5 (- d m)))1 x6 z: _) }) l- J
p5 (polar p0 (* 0.5 pi) h)6 O5 _. u- z, c; y9 T* ^
p4 (polar p5 0 (* 0.5 (- m n)))
& W3 G" F l$ D" f; A. S! a 3p (polar 1p 0 (* 0.25 (+ d m)))
; j& C- m# _& l: `, b0 u" i6 A q 4p (polar 3p (* 0.5 pi) th)( J7 p7 F- @- _6 c* n8 A% _
)
1 m, g- V& f& v7 ]+ i (command "pline" p0 p1 p2 p3 p4 p5 "c")8 q! }: L7 Q& p5 @5 G( s4 _
(command "revolve" (entlast) "" "y" 360);(entlast)获取最后生成的图元: j5 s: ~% ]. g6 {4 h
(setq s1 (entlast));做三维，常常需要把一些后面用到的对象保存起来; t6 d5 W, A3 Q. k6 j; U
(command "ucs" "n" "x" "");ucs绕x轴旋转90度6 `' D+ y) ]! |4 M# t) }! `
(setq 2p (trans 2p 0 1));;点从wcs转到ucs，这是三维重点0 Z1 c, n! x ], o# d7 ~
(setq 3p (trans 3p 0 1)); Z6 m7 I7 I$ e# r, C" o, K2 v$ h
(setq 4p (trans 4p 0 1))
9 o( y2 M6 i- o; t n (command "cylinder" 3p (* 0.0625 (- d m)) (- th))0 ~7 o" j$ z3 l! H2 c' V
(setq s2 (entlast))
9 I" ~/ W7 }. p2 @( y; S (command "cylinder" 4p (* 0.125 (- d m)) (* 0.2 th))
3 W/ Y/ y, Z8 j$ o (command "union" s2 (entlast) "")& ?' Y* E( S0 z9 N6 l& D3 f+ K) W
(setq s2 (entlast)): _1 O' b1 ^& m% Q |
(command "copy" s2 "" 3p (polar 1p (* 0.5 pi) (distance 1p 3p)))
1 X @' l4 e$ O& ^' e (setq s3 (entlast))
G# w! T4 ~ m& E (command "copy" s2 "" 3p (polar 1p pi (distance 1p 3p)))! Q# \! U, l6 C' H6 _
(setq s4 (entlast))
; [ r5 H2 u% g! y& w$ q (command "copy" s2 "" 3p (polar 1p (* 1.5 pi) (distance 1p 3p)))' ?$ @' S, u6 j, @" x
(command "subtract" s1 "" s2 s3 s4 (entlast)"")
, Z$ A7 E+ B- e: e, D8 x (command "VPOINT" '(1 1 1))
) L7 _! h% d2 ?) j o1 J, u (command "shade")
* n- ]4 T+ i- p (command "zoom" "e")" f r. O: ]3 b/ @
(setvar "cmdecho" 1)7 b9 d: J5 W" i: `
(setvar "osmode" 4133)4 p& T8 W. ~( Q
(princ)
% P, v* _$ w7 z9 f9 q( h. })
2 ` q/ T& p( Z2 z( m;;show函数将file_name幻灯片显示到image_name控件中
9 ?% O9 K: w5 k; I A+ ^$ K, k(defun show(image_name file_name / x y)
, r- `. O! X- _ (setq x (dimx_tile image_name));取得image的宽高
: ^2 P( P# j1 x5 Q8 S4 A (setq y (dimy_tile image_name))
; g7 a; H: X5 i2 v% O (start_image image_name);幻灯片处理开始8 m7 B- ]) M5 d8 Y2 a8 ~+ I) C5 y4 I
(slide_image -10 -25 x y file_name);幻灯片处理，(-10 -25)为左上角点
8 N9 d4 ^2 V& J5 H( M (end_image);幻灯片处理结束+ ^; H* e. l; [/ { X9 W7 P {& F. }
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;;getdata获取编辑控件的值' L4 z" G! N* |4 i% o; T8 A5 v3 i
(defun getdata()$ j' k0 K" U% |. U! p5 Q5 S
(setq d (atof (get_tile "key_D")))
" L% y- |6 q% X! Z) l1 i2 c0 q+ w (setq m (atof (get_tile "key_M")))
7 G" @4 O& |; Y! ^* i' W (setq n (atof (get_tile "key_N")))
- }6 I+ g4 U. ~ (setq h (atof (get_tile "key_H")))$ O' d" Y6 ~/ e0 x. p0 O
(setq th (atof (get_tile "key_T")))' m2 ^ J5 i z& |0 P. ?+ e
) . B6 H+ U, G) V+ b5 Q( Z$ L
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
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发表于 2008-10-30 15:39