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。. L3 u( q6 m, G! ?; Y
这一辑是对话框，题材是三维，在三维中和二维有些差异。
& u3 }5 w. ?3 W1 R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：- x2 G- w6 Z7 n5 c# Y- k
7 y# U# |9 e" o( a; i下面还是来看程序代码吧：- }; ~" m7 f+ }; q2 ?
;;;简易3D法兰绘制7 ]& \# }9 q4 @9 e
;;;使用时必先保证D盘的example文件夹里有flange.dcl和flange.sld# x6 N4 F& F1 T6 J p' x- x4 g
(defun c:flange ()7 V- ]/ K0 r4 K! a9 M: F
(setq index (load_dialog "d:\\example\\flange.dcl"));加载对话框6 x2 y% L' x: B/ n; S
(if (< index 0) (exit))
: G1 p4 F& G) _9 G9 ~' F (setq next 2)3 Y4 z! V$ _% d: |9 p; w: a4 i
(while (>= next 2)
6 R z/ }/ d: B' l0 K (if (not (new_dialog "flange" index));初始化对话框
. s$ V9 a/ b/ Q) D9 X G7 v (exit)
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$ ^ T/ \- P# ]3 S (show "key_image" "d:\\example\\flange.sld"), s/ Z( p& | I$ c! D: Q& O1 _
(set_tile "key_D"(rtos 100 2 2));初始化控件
) C0 R) u/ n8 l6 h (set_tile "key_M"(rtos 50 2 2))* l# o# B" J) M$ ? X& W
(set_tile "key_N"(rtos 25 2 2))
: p. \+ B! ]3 [: B% q. s (set_tile "key_H"(rtos 50 2 2))
/ d2 k/ f: F7 p$ j) H) B (set_tile "key_T"(rtos 20 2 2))7 i) I6 f; n" h4 ~5 P# y. @- \
(action_tile "accept" "(getdata) (done_dialog 1)" );accept动作5 K9 p4 T& R% H3 |
(action_tile "cancel" "(done_dialog 0)" );cancel动作* i: R* z. ~. N; i# p& Y. r
(setq next (start_dialog));显示对话框
8 W2 P" |0 G% r( R( \ (cond
/ I: M9 s- ^8 I3 i; B3 ` ((= next 1)
! S& V$ g9 F u) i# O (draw)* }. O( U- W6 P* n
)4 V; M" R. p. A$ R
((= next 0)
0 m* ]) t5 F K (prompt "\n取消了法兰绘制")
- b! Q; q. E- H4 [* o. R/ `: y )
) ]. U' ~& K* X );cond
" j7 ^# j n. T) o );while
0 l5 \4 H' K4 X. n4 Q* `; ? (unload_dialog index);卸载对话框/ B9 K# ^2 K1 q, R; Z+ @+ [6 H
(princ). D( a4 J' Z4 T5 N6 d& H
)
1 E4 d8 o; G8 I" }& F;;draw# D8 i9 L3 z7 N; I
(defun draw();/ 1p 2p p0 p1 p2 p3 p4 p5 s1 s2 s3)% Z% \# `( m! l* G% R: A
(setvar "cmdecho" 0)
@* o. L q: Y: U4 t1 \ (setvar "osmode" 0)6 L! f, `8 O" U( S
(setvar "isolines" 20)
) Y: E* @9 r" p" \/ q5 E& ~ (command "ucs" "" "");在wcs中工作$ g K6 u" ^, p; _. P
(setq 1p '(0 0 0)
3 }% c- R3 e6 a6 W C% s) O 2P (list 0 h 0)! n3 t" n) Y9 S/ f1 C% G |
p0 (polar 1p 0 (* 0.5 n))
3 @) t0 a% J ] p1 (polar 1p 0 (* 0.5 d))
3 `/ l$ o% ~7 @* A- u6 R, V p2 (polar p1 (* 0.5 pi) th)' ?' a1 X0 }" S6 w5 p. }; X, D+ {- F
p3 (polar p2 pi (* 0.5 (- d m))), C: H N" Z0 K; d e! B
p5 (polar p0 (* 0.5 pi) h)1 k$ S) j; q0 l( F- M+ H9 V I6 n3 V
p4 (polar p5 0 (* 0.5 (- m n))), Z; X3 ~& ~- c/ x
3p (polar 1p 0 (* 0.25 (+ d m)))
! M& u/ y; Q! y; M% [. \& K& P 4p (polar 3p (* 0.5 pi) th)
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(command "pline" p0 p1 p2 p3 p4 p5 "c")0 P, m1 s3 _' b2 f
(command "revolve" (entlast) "" "y" 360);(entlast)获取最后生成的图元% W4 n. A. i4 O1 W/ _0 P
(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 g7 R$ X2 M4 @% M" D
(command "ucs" "n" "x" "");ucs绕x轴旋转90度
' L. M& U( z. z! g (setq 2p (trans 2p 0 1));;点从wcs转到ucs，这是三维重点
) L' x0 |0 V9 p! F0 t5 h+ m! I (setq 3p (trans 3p 0 1))5 v7 ^! I$ a \1 U' f' f
(setq 4p (trans 4p 0 1))
: W2 a3 K! x7 S (command "cylinder" 3p (* 0.0625 (- d m)) (- th))
+ ~5 j: ], l' R5 c' j, P1 \7 J! k (setq s2 (entlast))
/ B+ j; t' t# j0 p4 | (command "cylinder" 4p (* 0.125 (- d m)) (* 0.2 th))
& h. ^. \* n) ^* t8 f3 f (command "union" s2 (entlast) "")4 t0 ^! V8 u& L9 W7 d
(setq s2 (entlast))
2 D" _3 ` Q: g3 D4 A [: c$ F. V' M (command "copy" s2 "" 3p (polar 1p (* 0.5 pi) (distance 1p 3p)))
. d+ k0 G! U! r/ }" [( P (setq s3 (entlast))
, m, H: I' X3 [) Q+ A+ ]7 K (command "copy" s2 "" 3p (polar 1p pi (distance 1p 3p)))) y5 A' v4 j! b
(setq s4 (entlast))
+ t% @, j: |0 ?2 t- b+ V& }5 y B1 G (command "copy" s2 "" 3p (polar 1p (* 1.5 pi) (distance 1p 3p)))* c. f0 ]. b4 t# n1 k+ e# Z5 _
(command "subtract" s1 "" s2 s3 s4 (entlast)"")# q6 X2 V; ~2 [
(command "VPOINT" '(1 1 1)) O D+ o2 \# r: o z1 F: c5 e
(command "shade")4 e, U) y- s9 O
(command "zoom" "e")
! c" `4 |1 y9 j1 `2 Y f3 L (setvar "cmdecho" 1)9 X- q c# K j9 T$ Z0 {
(setvar "osmode" 4133)3 j$ l) s3 _& g7 J* V0 X8 p
(princ)
' i1 c! R7 F& U' Y& [+ B: u)
5 V- R" J$ V z" I4 H1 t;;show函数将file_name幻灯片显示到image_name控件中
" r& Y- g+ Z6 a* B$ }. V- |(defun show(image_name file_name / x y)' ~- E* y( Y, ~0 ^2 f' O# J$ e. g
(setq x (dimx_tile image_name));取得image的宽高
" e# X8 B4 ^7 q# i" P$ D. \* Z (setq y (dimy_tile image_name))0 G, e1 L( u- W: R9 _* n
(start_image image_name);幻灯片处理开始3 T7 D6 b- h1 }: w
(slide_image -10 -25 x y file_name);幻灯片处理，(-10 -25)为左上角点
2 m O, H3 ? a: h2 y! f (end_image);幻灯片处理结束
9 j; v) p; f; Z( i)
$ ]7 f2 a$ J u6 @# o;;getdata获取编辑控件的值
, z8 f& s+ F2 i) F2 v# A(defun getdata()+ \: x2 u; K6 O1 \. F
(setq d (atof (get_tile "key_D")))
* K# W0 j+ i7 T1 o3 n (setq m (atof (get_tile "key_M")))
, D& I" {2 g7 X- O. |/ o9 \9 u (setq n (atof (get_tile "key_N")))
% Y! @+ G8 R8 @" b (setq h (atof (get_tile "key_H")))1 k3 s- q( t+ p4 J: L/ N0 n
(setq th (atof (get_tile "key_T")))
. _) b7 s# e0 `, d5 n- J) e)
- v, h) _0 ?% K/ W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