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。* |. N4 Q/ ]# v
这一辑是对话框，题材是三维，在三维中和二维有些差异。9 ~: F3 x% f& |# w$ D5 k1 \
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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- [: ^( t8 H# c# K下面还是来看程序代码吧：
( T5 P$ E$ L. e% G$ k' I;;;简易3D法兰绘制- r+ M* i; {! e$ k) ~1 c
;;;使用时必先保证D盘的example文件夹里有flange.dcl和flange.sld( @; I3 S$ T( L' X
(defun c:flange ()" y" X) B; h' Y& s V: ~+ i4 i
(setq index (load_dialog "d:\\example\\flange.dcl"));加载对话框
3 H; g4 b a2 Z* E" L( Y# _ (if (< index 0) (exit))" o. J9 j8 m. P/ V
(setq next 2)
L. s' j1 z9 I, ` (while (>= next 2)
r- w! [: N' G+ \: _ (if (not (new_dialog "flange" index));初始化对话框
: x9 }+ ^# r) j. x (exit)# _* \1 ]! q6 d+ ?& e7 L
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(show "key_image" "d:\\example\\flange.sld")+ h" L! i; i, z9 J; S/ p
(set_tile "key_D"(rtos 100 2 2));初始化控件6 m* b2 ?: }- Y2 k7 t9 ~
(set_tile "key_M"(rtos 50 2 2))/ n, q) j8 V- q7 W) O
(set_tile "key_N"(rtos 25 2 2)). `5 ^! h4 {8 p) c
(set_tile "key_H"(rtos 50 2 2))& E: v z% f7 c/ X$ U
(set_tile "key_T"(rtos 20 2 2))1 W5 l7 B5 x- D
(action_tile "accept" "(getdata) (done_dialog 1)" );accept动作) L, r7 J4 i/ R( G" e" A3 p1 A2 o
(action_tile "cancel" "(done_dialog 0)" );cancel动作4 V; ?3 B4 P3 d' K4 ^5 j# f& S
(setq next (start_dialog));显示对话框
0 f" c. ]2 d& k* }; s (cond
' b/ u; g1 ` O" T# ~' X ((= next 1): Z" a0 K3 ?6 D2 j
(draw)
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* c1 R' w7 \' t9 M( S P6 q0 N ((= next 0)
* G* u3 y( k" f# ? (prompt "\n取消了法兰绘制")7 s9 [. w$ W o+ H
)
, L# D. w7 P8 g0 u% m" _4 _ );cond
8 O6 d& @+ Y/ H2 c );while/ n+ u; H1 O" d# X
(unload_dialog index);卸载对话框- r$ ?: T4 s* \4 Y" K
(princ)
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- m2 s7 c. J1 x$ Q;;draw/ o! |) ~( K, w6 _1 q! r; A
(defun draw();/ 1p 2p p0 p1 p2 p3 p4 p5 s1 s2 s3)
+ M) A# q/ `+ P* D+ S7 Q3 P (setvar "cmdecho" 0)$ `5 a/ A% h0 e: a) E3 U8 Q
(setvar "osmode" 0)
+ _3 F8 K& B( C \2 @ (setvar "isolines" 20)/ n) }1 z$ ?( _: n5 J
(command "ucs" "" "");在wcs中工作
# d1 q4 Z, d& ^& W M. d (setq 1p '(0 0 0)
% ~6 L3 ^$ m& F( K 2P (list 0 h 0)
9 j) r8 B6 D$ \" T p0 (polar 1p 0 (* 0.5 n))! R, n+ w# ~! x! C1 e3 S; ]
p1 (polar 1p 0 (* 0.5 d))- |# G2 Z. i* j4 Y
p2 (polar p1 (* 0.5 pi) th)0 x1 ~+ b% L+ r" u- C4 A0 m
p3 (polar p2 pi (* 0.5 (- d m)))5 s1 s! Z4 T6 i( I% E
p5 (polar p0 (* 0.5 pi) h)$ K/ l- y5 t3 e# O3 u
p4 (polar p5 0 (* 0.5 (- m n)))
) B0 O9 E7 U, |; Y: V" C 3p (polar 1p 0 (* 0.25 (+ d m)))4 H- U2 _7 e9 n0 F4 j' g1 L
4p (polar 3p (* 0.5 pi) th)
* O7 `4 {( l- J3 E$ J1 v )
2 ^8 X! S8 @. \# Q! M* p$ ~. E: a (command "pline" p0 p1 p2 p3 p4 p5 "c")( X4 d5 A# [$ S& D( m5 y) W1 w
(command "revolve" (entlast) "" "y" 360);(entlast)获取最后生成的图元
( g9 I( R; w7 Q, ] (setq s1 (entlast));做三维，常常需要把一些后面用到的对象保存起来9 Z+ V& U+ e/ i6 r" e& n5 V
(command "ucs" "n" "x" "");ucs绕x轴旋转90度
: V' \- I$ A3 x$ I/ J9 F w (setq 2p (trans 2p 0 1));;点从wcs转到ucs，这是三维重点4 Q4 r; C1 W" i
(setq 3p (trans 3p 0 1))
9 D- _' j2 e) O- ~' N (setq 4p (trans 4p 0 1))
7 ^, B( P9 J4 @ Z (command "cylinder" 3p (* 0.0625 (- d m)) (- th))7 b$ V5 v2 K& H( H. q# ?
(setq s2 (entlast)). b6 U2 m$ d" ]" U2 D( y+ e
(command "cylinder" 4p (* 0.125 (- d m)) (* 0.2 th))0 C, _1 t! W5 ?
(command "union" s2 (entlast) "")
4 ]% x; {- q$ A* `. W { (setq s2 (entlast))
( q7 `! V5 f: I (command "copy" s2 "" 3p (polar 1p (* 0.5 pi) (distance 1p 3p)))
5 Y: N f1 y# E1 N (setq s3 (entlast))
' E* k9 v9 P$ _( S2 D S$ { (command "copy" s2 "" 3p (polar 1p pi (distance 1p 3p)))# e0 o$ {) q: S( o
(setq s4 (entlast))
" R9 ~4 o- @4 a# K* { (command "copy" s2 "" 3p (polar 1p (* 1.5 pi) (distance 1p 3p)))
' G% V' P3 p9 K, x+ E/ r( x* C* q (command "subtract" s1 "" s2 s3 s4 (entlast)"")
7 ~0 b4 k+ a- u3 Z) T2 [7 Q' |9 ` (command "VPOINT" '(1 1 1))- E( L4 h5 M& ~6 L
(command "shade")
$ R' I6 H" Q! t (command "zoom" "e")9 F r8 v4 \* f% j
(setvar "cmdecho" 1)- v. I E, k, \5 |) [
(setvar "osmode" 4133)
# W* S& [# ? x6 N" g9 t& | (princ)
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;;show函数将file_name幻灯片显示到image_name控件中
8 k' ]" M5 m. H& |3 E7 N: A7 l( u5 y(defun show(image_name file_name / x y)
/ z0 Z4 Y$ s2 |4 ?: D (setq x (dimx_tile image_name));取得image的宽高$ Y1 t' [8 }2 d
(setq y (dimy_tile image_name))
7 ?! I0 _6 W' P4 f8 W! O* Q1 l (start_image image_name);幻灯片处理开始
( f& b w& V& N/ d. O (slide_image -10 -25 x y file_name);幻灯片处理，(-10 -25)为左上角点
* X0 F* K+ x9 Z5 F- M$ E! ~( G (end_image);幻灯片处理结束: a3 M2 }9 y, S4 K6 ^9 u
)
' X. Z) a" Z2 ?2 s K; y;;getdata获取编辑控件的值5 p1 I/ p# }" B+ z# f+ I/ c0 R' g
(defun getdata()% y' [+ q/ \# z! l! i4 ?& ~% l
(setq d (atof (get_tile "key_D")))
( Q$ J/ E: t1 P4 D, }8 }' j f8 E (setq m (atof (get_tile "key_M")))
: ^8 a4 i* o4 X% m (setq n (atof (get_tile "key_N")))
0 h m2 C8 k; X' ^% p# H: ^. s (setq h (atof (get_tile "key_H")))5 F! Y+ j2 s/ J2 @0 w
(setq th (atof (get_tile "key_T")))
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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