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。! K- ~# U8 N* B; E
这一辑是对话框，题材是三维，在三维中和二维有些差异。
9 Z9 w) l( n& i+ E) B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：7 G7 F' c4 |! G! K. J* B' p/ Z
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下面还是来看程序代码吧：% R* K* A7 ~* U6 U7 Y
;;;简易3D法兰绘制+ {8 v3 X* R3 o; h" T
;;;使用时必先保证D盘的example文件夹里有flange.dcl和flange.sld1 P# ^0 {* M; J( C4 G) i
(defun c:flange ()
/ u" l; m, Y9 J: f- |/ W (setq index (load_dialog "d:\\example\\flange.dcl"));加载对话框( @" ^( A) W& D$ N4 s6 E# E0 B
(if (< index 0) (exit))2 B3 g1 P* a+ q) v l% N3 z
(setq next 2)2 j# s0 \0 k. {5 H- R0 U
(while (>= next 2)& v1 D+ G! S5 T6 ?3 g
(if (not (new_dialog "flange" index));初始化对话框
% g- m: R7 j4 O1 M (exit)
* a) s8 {9 ?; n, y* ?* n. E7 T )
" |* u; o( k) l6 g! D2 t5 h (show "key_image" "d:\\example\\flange.sld")
' j' o3 y$ Z c4 O5 X, { (set_tile "key_D"(rtos 100 2 2));初始化控件
* t' g" O& C& e (set_tile "key_M"(rtos 50 2 2))" y' u3 ^" d: w. t
(set_tile "key_N"(rtos 25 2 2))$ Q9 Q. I( h& J4 B& ]% D. q
(set_tile "key_H"(rtos 50 2 2)) d: i* l) T+ m3 C. A+ X8 x. L0 @
(set_tile "key_T"(rtos 20 2 2))
- J- k5 v9 }( f8 u n (action_tile "accept" "(getdata) (done_dialog 1)" );accept动作6 F" I2 x' }; ?% z" m; W i' ~% M- ]1 [
(action_tile "cancel" "(done_dialog 0)" );cancel动作0 Y, c1 Z6 q" N4 m8 {9 A. F' k! v
(setq next (start_dialog));显示对话框+ I. Q3 O$ A3 f V: k
(cond3 k' d1 ?. X3 Z* Y5 j
((= next 1)& h/ y& s( K& B
(draw)
; O4 K" T/ z3 U. d )
, D" ?. g2 y& E4 ] ((= next 0)2 @7 D) n4 b$ h- j- e' h) c
(prompt "\n取消了法兰绘制")
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);cond; M2 g) F3 C) _7 `' L' y
);while G/ ^* V' T7 h$ ]4 G) F% h6 Y' Y* X
(unload_dialog index);卸载对话框
& e, K3 b6 R i4 Y2 E8 ~ (princ)
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6 ~5 w, G( \" c% K) F2 C7 v* H;;draw
7 ~4 b5 y5 A w! f8 O(defun draw();/ 1p 2p p0 p1 p2 p3 p4 p5 s1 s2 s3)
8 h. U$ ]7 P4 }9 }" D (setvar "cmdecho" 0)! C' t* |, f" y
(setvar "osmode" 0)
7 s% R+ ~% C' g+ H4 [! ?4 P7 V, D* W- G2 S (setvar "isolines" 20)3 E2 H! u* @# D
(command "ucs" "" "");在wcs中工作
' R m2 y- X* \# i% o( V/ H- l (setq 1p '(0 0 0)
8 Q! L3 ?$ ^: `/ f7 s& o5 F 2P (list 0 h 0)
' ?3 Z7 c6 K9 z5 U( T p0 (polar 1p 0 (* 0.5 n))
" |, w. d5 @1 c/ ?, N* {3 l p1 (polar 1p 0 (* 0.5 d))
, y. L' X0 H, h# q p2 (polar p1 (* 0.5 pi) th)
2 X, b; {9 A1 `& S8 ^+ T p3 (polar p2 pi (* 0.5 (- d m)))2 O7 m0 p0 s( ^: s9 ^3 H3 X' _* w
p5 (polar p0 (* 0.5 pi) h)8 T2 W! n* m1 ?' B d
p4 (polar p5 0 (* 0.5 (- m n)))/ V, C, P8 ?# z
3p (polar 1p 0 (* 0.25 (+ d m)))
0 [) T4 r! w) i; X 4p (polar 3p (* 0.5 pi) th)1 b% B h/ G$ Z3 k/ u
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(command "pline" p0 p1 p2 p3 p4 p5 "c")
) X! ]2 E+ ?8 Q (command "revolve" (entlast) "" "y" 360);(entlast)获取最后生成的图元
0 t2 Y" q- b0 ]9 ?1 j) V) N (setq s1 (entlast));做三维，常常需要把一些后面用到的对象保存起来
" p, a7 Z" d0 u) f (command "ucs" "n" "x" "");ucs绕x轴旋转90度' ?, b! S6 Y' X
(setq 2p (trans 2p 0 1));;点从wcs转到ucs，这是三维重点
/ u/ H/ q- a# W5 w$ R8 s (setq 3p (trans 3p 0 1))% v8 v3 a' K- S8 w* i% L5 z
(setq 4p (trans 4p 0 1))
# s8 y* W9 u! B2 T (command "cylinder" 3p (* 0.0625 (- d m)) (- th))
+ e3 s B' R+ D5 v F (setq s2 (entlast)) r) S1 { I& U4 I8 s3 M% t
(command "cylinder" 4p (* 0.125 (- d m)) (* 0.2 th))
/ r! f& ?7 o; p$ A% z (command "union" s2 (entlast) "")
. w4 ]! ?& j" `! k( h (setq s2 (entlast))3 Z0 A; n3 d" n: \
(command "copy" s2 "" 3p (polar 1p (* 0.5 pi) (distance 1p 3p)))
4 L3 v4 C* t& e" U) r3 h* y (setq s3 (entlast))2 c: g1 |) n- t4 O2 q
(command "copy" s2 "" 3p (polar 1p pi (distance 1p 3p)))- n) h/ q) u) P* w0 ?
(setq s4 (entlast))9 f# E: P8 _# \5 |( V2 I
(command "copy" s2 "" 3p (polar 1p (* 1.5 pi) (distance 1p 3p)))/ [! s8 F0 f) y# [& E/ ]8 K! y9 F
(command "subtract" s1 "" s2 s3 s4 (entlast)""), [1 R7 q/ y5 ^+ N4 x V9 f
(command "VPOINT" '(1 1 1))9 ?4 |3 F) D @. t8 \
(command "shade")
& K. N% H2 Q) u8 D( y$ D+ m- V (command "zoom" "e")
3 D- `- m& p# o: w. o+ t; M% ] (setvar "cmdecho" 1)
) N B# E, S$ S$ _ (setvar "osmode" 4133)9 {3 N5 R0 a, q
(princ)
2 A) i/ D- l( ?- h; d)
% p. K9 F; h+ e; e+ U J;;show函数将file_name幻灯片显示到image_name控件中
' }: ]5 F+ y7 q# \# S4 G$ L# j(defun show(image_name file_name / x y)
1 I: Y9 m5 ^8 m' k" v G, i (setq x (dimx_tile image_name));取得image的宽高+ R! v/ ? v7 u: W
(setq y (dimy_tile image_name))0 B2 P9 e3 W% n1 u# u z2 h
(start_image image_name);幻灯片处理开始
! N5 e1 j3 q! X+ D$ s (slide_image -10 -25 x y file_name);幻灯片处理，(-10 -25)为左上角点" F# m& ^& {; i- u' Z
(end_image);幻灯片处理结束
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;;getdata获取编辑控件的值
, X- d ?6 o! Z% f2 `. m2 F* ~(defun getdata()
3 K+ j. M* t7 O Q (setq d (atof (get_tile "key_D")))
, c+ m- B8 b1 a) N (setq m (atof (get_tile "key_M")))4 p! Z0 n) Y' J, z3 x4 t
(setq n (atof (get_tile "key_N")))/ N" S* G0 n+ X' {1 ?' Y* G6 p6 j
(setq h (atof (get_tile "key_H")))1 |+ M7 L H" ^1 G D- v
(setq th (atof (get_tile "key_T")))7 t! O( N+ `$ O
) + Z' l& }& q6 I4 S5 Q$ Y( r V
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