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。
/ X3 W4 I5 }" A2 b9 m* A这一辑是对话框，题材是三维，在三维中和二维有些差异。, ^( r) m7 e$ D- V7 F
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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下面还是来看程序代码吧：8 T+ `! r4 s5 \6 f5 H
;;;简易3D法兰绘制
& i, j) @8 D: B0 K; `6 V;;;使用时必先保证D盘的example文件夹里有flange.dcl和flange.sld2 K+ N9 i+ Z& e0 a1 x. h2 J3 p% i
(defun c:flange ()
4 `# e; }6 H2 k (setq index (load_dialog "d:\\example\\flange.dcl"));加载对话框
+ Y8 \ z' r5 P (if (< index 0) (exit))
) r9 o1 m7 m" Z# w! Z2 z* _ (setq next 2)
. u, g5 E4 a3 s, m (while (>= next 2)! E7 D y* a( v# I! K/ p9 w8 y8 |& B2 x
(if (not (new_dialog "flange" index));初始化对话框+ w; i) E1 Y3 l! x& x n
(exit)2 e! I m3 _) p
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(show "key_image" "d:\\example\\flange.sld")
7 I5 d* \+ E* h b (set_tile "key_D"(rtos 100 2 2));初始化控件6 q/ x6 a$ v6 ?" v0 c" D
(set_tile "key_M"(rtos 50 2 2))" C3 o' v6 C9 v0 V) X. P+ c
(set_tile "key_N"(rtos 25 2 2))4 C1 v6 A! O1 i# t- f1 Y
(set_tile "key_H"(rtos 50 2 2))$ B* W% f9 C5 s; a
(set_tile "key_T"(rtos 20 2 2))
5 v8 K" S1 O$ \4 d (action_tile "accept" "(getdata) (done_dialog 1)" );accept动作
; X# `3 s* A- ^5 J1 E (action_tile "cancel" "(done_dialog 0)" );cancel动作! C; _- F F7 E
(setq next (start_dialog));显示对话框
$ @/ P( `: @/ q R) H% i5 h; I (cond
7 g9 Y9 d; |, ?/ E" N# C; ? ((= next 1)6 O: F) N: U1 X! }- L, V
(draw)
" O2 F$ j% S" T8 I& P/ f5 w) e )
7 O& v( `$ I) O: t; P1 W! i ((= next 0)
! p0 H/ {# ^4 t: h (prompt "\n取消了法兰绘制")3 m" Z) b3 s% D" T: \4 G$ @+ c5 U1 i' L
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);cond
% Q; b4 ~5 @3 ]/ d! G& \3 X# \ );while1 @, {- }5 I" a. u/ e) s: o
(unload_dialog index);卸载对话框) Y9 G2 }7 {, t& I! F# S2 H8 c+ U
(princ)
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, l2 z- ?$ h0 S9 e' O3 L;;draw
* m) M4 V4 b7 K" T5 Z z9 u(defun draw();/ 1p 2p p0 p1 p2 p3 p4 p5 s1 s2 s3)5 F1 E% ~: ]0 F ?; H7 _
(setvar "cmdecho" 0)
! C6 `- t, Z; f5 K, v7 ^7 F (setvar "osmode" 0)* b" w5 I/ ?( q9 D
(setvar "isolines" 20)/ A! Y9 a( [1 Z- W% `+ m# X
(command "ucs" "" "");在wcs中工作. R: Z- Q2 Q+ J8 D# V# G0 t6 o& t
(setq 1p '(0 0 0), n* }' L0 \7 l6 W5 l
2P (list 0 h 0)
% q# h/ j6 @) B! a6 o p0 (polar 1p 0 (* 0.5 n))
3 E s7 F# |! O% d) I, ? p1 (polar 1p 0 (* 0.5 d))! j+ }3 h/ X& H9 w- B& h
p2 (polar p1 (* 0.5 pi) th)
0 j) g% v5 t% i" M3 E9 k# E; M! b) W p3 (polar p2 pi (* 0.5 (- d m)))9 @8 }/ d P: L+ x. O
p5 (polar p0 (* 0.5 pi) h)
8 R" @) \+ ?% u5 ]" A) v p4 (polar p5 0 (* 0.5 (- m n)))9 i5 l. d7 Y( Q o& |: y! I5 M
3p (polar 1p 0 (* 0.25 (+ d m)))0 m6 Z9 M- v, }. V- s! ]9 g% G
4p (polar 3p (* 0.5 pi) th) P& s+ Y9 Y# ?0 E0 J5 p
)
% ^! G6 J) {$ J/ A (command "pline" p0 p1 p2 p3 p4 p5 "c")
8 j+ K& {( p" P) i (command "revolve" (entlast) "" "y" 360);(entlast)获取最后生成的图元, Y9 J' c* B$ ?) g! d s
(setq s1 (entlast));做三维，常常需要把一些后面用到的对象保存起来" ~8 [; \- i6 J N7 M R; @8 A
(command "ucs" "n" "x" "");ucs绕x轴旋转90度
5 q m! H" `7 G+ M3 l% P: L" U (setq 2p (trans 2p 0 1));;点从wcs转到ucs，这是三维重点
, t3 H$ X8 |/ ^- t4 e4 C (setq 3p (trans 3p 0 1))" n% P |% Z* F0 D3 R! }
(setq 4p (trans 4p 0 1))
4 n; B }' B3 a i (command "cylinder" 3p (* 0.0625 (- d m)) (- th))
; S4 d J k5 \3 Z5 Z/ ^ (setq s2 (entlast))0 Z$ r% Q/ v5 n8 t R! ^
(command "cylinder" 4p (* 0.125 (- d m)) (* 0.2 th)); W/ T6 @- }' N" h
(command "union" s2 (entlast) "")
8 N% Q; \4 y- `" v$ N- m/ j (setq s2 (entlast))
1 Y; L' z+ V( L" h3 L# A# v (command "copy" s2 "" 3p (polar 1p (* 0.5 pi) (distance 1p 3p))); U S/ q3 e/ ^# \
(setq s3 (entlast))
5 [/ P2 b9 i- O+ D (command "copy" s2 "" 3p (polar 1p pi (distance 1p 3p)))
( F# z9 w# a" }9 o/ x+ p (setq s4 (entlast))
( B/ }6 b$ _! T# r* m (command "copy" s2 "" 3p (polar 1p (* 1.5 pi) (distance 1p 3p)))) j; m2 ^* H% e2 T9 C- \& t1 O
(command "subtract" s1 "" s2 s3 s4 (entlast)"")/ T. {3 | k4 |4 D0 \# G0 O2 f; m2 v
(command "VPOINT" '(1 1 1))
, L% e9 h) j0 u) J+ T1 Q# v (command "shade")
- N7 j# Z8 E% s5 h% S! Y* H (command "zoom" "e")& d' f b4 {; ~4 ]
(setvar "cmdecho" 1)
2 y9 S7 @6 w1 C. h2 t) ? (setvar "osmode" 4133) a3 j% Y" c' E( u9 ^/ q2 z& w
(princ)
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;;show函数将file_name幻灯片显示到image_name控件中
8 i: h/ d. K4 Q0 O* O, a" H& D(defun show(image_name file_name / x y)
/ D' k2 u0 i" x$ g# O! K* s% C (setq x (dimx_tile image_name));取得image的宽高) k& B! i4 w; U& B! _
(setq y (dimy_tile image_name)), _& D- f2 \6 ?8 {7 |: E
(start_image image_name);幻灯片处理开始6 O( V6 N7 N: L# f K7 w% J
(slide_image -10 -25 x y file_name);幻灯片处理，(-10 -25)为左上角点
% y3 H3 b4 ]9 W' y3 m4 @ (end_image);幻灯片处理结束5 B2 V# j/ [0 w
)
Z5 @ K- o$ d4 ~;;getdata获取编辑控件的值
+ c7 F+ A! n- N; f(defun getdata()0 A$ m/ W8 N S- a
(setq d (atof (get_tile "key_D")))
0 \$ o+ D: h6 ?" n6 M2 t, A (setq m (atof (get_tile "key_M")))
% t* a7 k% C( D0 a* y! @ (setq n (atof (get_tile "key_N"))); H0 `! @4 e3 r) ^
(setq h (atof (get_tile "key_H")))
$ j M+ I8 w. C0 v: Z) M8 |' G (setq th (atof (get_tile "key_T"))) o# k! A$ I6 G8 M& K
)
6 @2 j* f+ n2 e5 I' K$ a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