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。
9 |2 F5 h9 g, h+ O) t, h( K这一辑是对话框，题材是三维，在三维中和二维有些差异。+ P$ E$ f) \7 F) J, ?& R5 |# x
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：; x! A# j9 X( S: `/ V% A6 `! c
;;;简易3D法兰绘制
. U! W) u- e4 N;;;使用时必先保证D盘的example文件夹里有flange.dcl和flange.sld
. r3 f" d5 X# K8 V4 \. E6 p4 x(defun c:flange ()
+ f% c4 f0 @. N7 t7 L. I (setq index (load_dialog "d:\\example\\flange.dcl"));加载对话框2 ^8 r7 p H( h. K8 Y2 U
(if (< index 0) (exit)). W& t% y' h e* G; ~6 h% L
(setq next 2)
7 V/ g# U! l. c( c; T% T. i (while (>= next 2)0 z, A3 e0 h' p, X- h) i- \, T
(if (not (new_dialog "flange" index));初始化对话框
0 b5 S; F, f* t (exit)
# o _- W4 J6 e& u7 y )
5 L3 \* M! d+ @& U9 k% k (show "key_image" "d:\\example\\flange.sld")
/ h* g# ^) u) K% G8 F. g/ N (set_tile "key_D"(rtos 100 2 2));初始化控件
" a5 X4 B% J# H3 r7 c6 ]- n& u (set_tile "key_M"(rtos 50 2 2))
$ v$ t* x. X5 K1 Q% G, } (set_tile "key_N"(rtos 25 2 2)). y" o$ P+ @' S6 \( l3 c/ Q7 ~5 s
(set_tile "key_H"(rtos 50 2 2))
3 h: i* w2 z1 @/ G( Z! j (set_tile "key_T"(rtos 20 2 2))
7 T ?7 C3 F8 T- W (action_tile "accept" "(getdata) (done_dialog 1)" );accept动作
, F: a7 I+ S. P( H. e (action_tile "cancel" "(done_dialog 0)" );cancel动作- d& b# I4 ?3 h( ~5 O
(setq next (start_dialog));显示对话框+ `. I+ ~4 q2 c1 U
(cond% V$ X, U3 D( a! |
((= next 1)
2 ~$ V: b( F p" q1 i% d7 H (draw)' A3 q" N, y; Q* r
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((= next 0)9 ?% d4 Q8 e: F, ]% O1 O
(prompt "\n取消了法兰绘制")
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) `0 `: i5 e `1 E: o, x+ T );cond
6 d) s' F6 [" j$ | );while
$ |, ? y4 S1 z* Q/ ~8 C! P (unload_dialog index);卸载对话框" G4 U: K* ?/ |6 U
(princ). A: I7 j% |5 T1 ~. f8 \) S- H
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;;draw" C, L M& B% F! a
(defun draw();/ 1p 2p p0 p1 p2 p3 p4 p5 s1 s2 s3)# ^ s3 I- Y/ F- H z
(setvar "cmdecho" 0)
& V- K/ Q' a6 P& K4 O6 x (setvar "osmode" 0)3 N6 F! P. v. ?, `' r; z
(setvar "isolines" 20)$ ^ K$ @6 M$ ~3 _2 r
(command "ucs" "" "");在wcs中工作
) n6 C# p3 t3 `! \" T2 B! ` (setq 1p '(0 0 0)
, n; ~* F7 {+ G3 d0 ^5 \ 2P (list 0 h 0): J; \. [" a4 n8 B
p0 (polar 1p 0 (* 0.5 n))
; F( F- U+ |; W, v p1 (polar 1p 0 (* 0.5 d))' l% n% J1 F! T, _& V6 B+ ?
p2 (polar p1 (* 0.5 pi) th)
$ b- F$ ? M# m3 b p3 (polar p2 pi (* 0.5 (- d m)))
4 {4 \( I1 \9 f$ j: K7 T8 n+ l p5 (polar p0 (* 0.5 pi) h)
7 o9 b/ I) Y$ l- \- ?/ G p4 (polar p5 0 (* 0.5 (- m n)))
! M8 p: ~- }+ X$ r. r+ s5 U 3p (polar 1p 0 (* 0.25 (+ d m)))
8 l( h. q4 Z( D 4p (polar 3p (* 0.5 pi) th)3 O) l: w7 \' L/ }/ s
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(command "pline" p0 p1 p2 p3 p4 p5 "c")
$ ~) b+ b& c9 O! l& c6 x; ^, _- @ (command "revolve" (entlast) "" "y" 360);(entlast)获取最后生成的图元( p, D! |7 J0 q3 l
(setq s1 (entlast));做三维，常常需要把一些后面用到的对象保存起来0 K' P) V+ f! z5 f3 K
(command "ucs" "n" "x" "");ucs绕x轴旋转90度* X/ u4 I5 d* Q
(setq 2p (trans 2p 0 1));;点从wcs转到ucs，这是三维重点8 F) T- q/ F8 h& K+ e$ w
(setq 3p (trans 3p 0 1))) g& q! l1 h6 g0 v
(setq 4p (trans 4p 0 1))
% F: |2 c/ Q, C, d4 _) \- {5 D (command "cylinder" 3p (* 0.0625 (- d m)) (- th))
. Q3 i/ P4 z) J6 g C) Z (setq s2 (entlast))) q- z) w. q$ x0 {7 Q1 h
(command "cylinder" 4p (* 0.125 (- d m)) (* 0.2 th))$ t$ M2 m- T9 ?5 r: H
(command "union" s2 (entlast) "") k+ g3 P3 J4 f! m$ ~) [7 n
(setq s2 (entlast))5 W8 o3 J" |& N) ^
(command "copy" s2 "" 3p (polar 1p (* 0.5 pi) (distance 1p 3p))): o: G' e- e* x/ Z& s
(setq s3 (entlast))
) V9 p; a, V7 F (command "copy" s2 "" 3p (polar 1p pi (distance 1p 3p)))
) }. f: i4 w# j3 b" s (setq s4 (entlast))
9 }9 |5 D. N# @1 c (command "copy" s2 "" 3p (polar 1p (* 1.5 pi) (distance 1p 3p)))
9 A# A1 V3 S2 h9 s5 \$ J# h (command "subtract" s1 "" s2 s3 s4 (entlast)"")' D0 b( _8 U! {6 ^$ x7 {8 q
(command "VPOINT" '(1 1 1))
* J1 ~ X7 N; q6 [" w% k5 e (command "shade")
: {5 H: ~8 }/ l& G& P; Y5 Z (command "zoom" "e")
+ b- C/ c' R4 f& P# }* l (setvar "cmdecho" 1)
) @! A2 i. J! k7 r (setvar "osmode" 4133)
$ y" Z x" u* a9 A1 V0 x (princ)
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& ]0 v; E0 ^2 z0 I) |# I;;show函数将file_name幻灯片显示到image_name控件中
: X% H! ~' R# E- T. X8 T" H* V* }(defun show(image_name file_name / x y)
7 Q) O" z+ w% j) _; u (setq x (dimx_tile image_name));取得image的宽高
$ W( \4 ~ {7 z& m3 t (setq y (dimy_tile image_name))' w2 ^& R$ Y8 K/ K8 [' |7 w
(start_image image_name);幻灯片处理开始
8 i$ w3 G# d4 ?8 W (slide_image -10 -25 x y file_name);幻灯片处理，(-10 -25)为左上角点( j+ k6 X5 V7 S# i' H. t; \0 L3 q+ J
(end_image);幻灯片处理结束6 D9 `0 ^6 I0 F* k( F' y3 j
)
; K6 Y5 C+ C* H, R2 |;;getdata获取编辑控件的值6 t1 V' b+ f" r& L
(defun getdata() C. J) m3 t5 f
(setq d (atof (get_tile "key_D"))). Z9 g5 o4 }) C, T" U
(setq m (atof (get_tile "key_M")))
( F* [$ _: m% I4 ?* J0 f8 Z (setq n (atof (get_tile "key_N")))
! Q ^; ^' G x& D (setq h (atof (get_tile "key_H")))
# y6 O; N1 u. n$ q (setq th (atof (get_tile "key_T")))
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1 p: B& Q2 i5 R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 b2 i }- X' c' f
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发表于 2008-10-30 15:39