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。5 `! U/ ~! [) V. x% Z
这一辑是对话框，题材是三维，在三维中和二维有些差异。, c1 T% r0 X) e
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：9 F3 N, y1 }: Y; M, S$ M$ u5 J' P
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下面还是来看程序代码吧：. O+ L, g: R) s1 [
;;;简易3D法兰绘制4 O9 f# s1 M' q+ P1 B# k, p& W
;;;使用时必先保证D盘的example文件夹里有flange.dcl和flange.sld
5 {4 z4 u' X0 x# m1 \$ p" b' v7 f(defun c:flange ()
: t0 U/ ]7 f2 w) ] q (setq index (load_dialog "d:\\example\\flange.dcl"));加载对话框
( ]1 B: E1 }$ C+ \ ?# u( M$ ~/ C (if (< index 0) (exit)); ]+ V3 T+ y9 w4 ?- \5 c' O" V
(setq next 2)2 n4 r2 L) z( M" O& |% o
(while (>= next 2)6 Z4 K- \5 b* M% k6 v, k* q
(if (not (new_dialog "flange" index));初始化对话框+ T6 e1 U8 {7 ^
(exit)
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(show "key_image" "d:\\example\\flange.sld")
2 @4 i5 z3 Z* T% C/ Y (set_tile "key_D"(rtos 100 2 2));初始化控件2 s: w0 [7 k# J% w- E6 L
(set_tile "key_M"(rtos 50 2 2))7 P* X$ ^$ r$ \: M5 a \/ B8 U7 F! r
(set_tile "key_N"(rtos 25 2 2))+ G( N& N9 y# h M/ \
(set_tile "key_H"(rtos 50 2 2))
+ {* o4 w- s8 B8 I+ P1 H% v% B0 Z (set_tile "key_T"(rtos 20 2 2))
6 V0 Q8 u3 M2 c- }$ h' n (action_tile "accept" "(getdata) (done_dialog 1)" );accept动作
/ L# X8 u* E5 F/ L* U" D e- W (action_tile "cancel" "(done_dialog 0)" );cancel动作
. H5 z( |2 Q, r7 }6 y9 E (setq next (start_dialog));显示对话框 f2 U* a# N3 R! J- W4 L0 T
(cond# b! F+ w2 z: @( r/ ]
((= next 1)( b$ X' I9 N2 y8 O/ Q m7 {7 ]
(draw)# `* F& X c: a0 d' Q
)
* x1 ?* k O: A0 P ((= next 0)! b. J" E) Y0 X. W$ q
(prompt "\n取消了法兰绘制")
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);cond
5 B9 r O( F2 [6 I% D );while0 G" s- Z' M# U- V( a6 K* k* N- z
(unload_dialog index);卸载对话框
9 t) ]- \3 G& M (princ)
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/ n3 Z# j& \( M;;draw8 z. a) P7 i) K" N
(defun draw();/ 1p 2p p0 p1 p2 p3 p4 p5 s1 s2 s3)
2 H2 ?2 F# [6 i6 l% I (setvar "cmdecho" 0)
3 u: N& i% b" a3 K! w (setvar "osmode" 0)0 J- y# ]8 q+ [0 X
(setvar "isolines" 20) c/ F8 z. J( V' O5 `
(command "ucs" "" "");在wcs中工作( I3 q9 Q. a4 y
(setq 1p '(0 0 0)1 x2 ~/ a; z) d( i1 d
2P (list 0 h 0)
, ]* g4 s! w! Q* `$ s4 B4 |: i l p0 (polar 1p 0 (* 0.5 n))
" v9 |. d: K6 s5 O5 ~) K2 Z- P p1 (polar 1p 0 (* 0.5 d))
' z- y, u. l9 [+ h, ]' J% U p2 (polar p1 (* 0.5 pi) th)" T& a0 b: H5 E% c+ j
p3 (polar p2 pi (* 0.5 (- d m)))
: T! V# C5 q r! U: ?1 ^1 t; F- k p5 (polar p0 (* 0.5 pi) h)3 w- J7 ^) W- M" Q" G
p4 (polar p5 0 (* 0.5 (- m n)))/ w7 Q( V+ I* i; b
3p (polar 1p 0 (* 0.25 (+ d m)))( V& N# }2 x2 @* h) M3 O
4p (polar 3p (* 0.5 pi) th)9 h0 `* s; X; Y. }
)- }3 Y7 I/ @+ p* ?' b
(command "pline" p0 p1 p2 p3 p4 p5 "c")
9 v. ~- M# D9 B X (command "revolve" (entlast) "" "y" 360);(entlast)获取最后生成的图元
. D; X: n( j# A1 r5 [: P0 f* Y" M (setq s1 (entlast));做三维，常常需要把一些后面用到的对象保存起来
# [6 a$ v6 F! J2 ]* ]- W/ ?0 z (command "ucs" "n" "x" "");ucs绕x轴旋转90度" d, _ c( e" ^2 c8 O& D
(setq 2p (trans 2p 0 1));;点从wcs转到ucs，这是三维重点9 o9 E; i, \/ D% M! Z8 O
(setq 3p (trans 3p 0 1))
2 ^3 Y5 }8 c* h+ o( i7 X (setq 4p (trans 4p 0 1))& ^2 y: b/ Z, C& P! Z
(command "cylinder" 3p (* 0.0625 (- d m)) (- th))8 z l4 `, d: a# d. I3 M: ?
(setq s2 (entlast))
+ o+ c& S7 R% K" M. N! R (command "cylinder" 4p (* 0.125 (- d m)) (* 0.2 th))
) C: b2 G. G3 W; m& x6 s (command "union" s2 (entlast) "")
8 Y+ |: v j* C (setq s2 (entlast))! p- u: a* I7 j# R* B
(command "copy" s2 "" 3p (polar 1p (* 0.5 pi) (distance 1p 3p)))
% q' H9 ^" G/ Y3 `* v; @ (setq s3 (entlast))
+ x6 x! T8 A1 R' I (command "copy" s2 "" 3p (polar 1p pi (distance 1p 3p)))6 Y& V! O3 a( V( _! C
(setq s4 (entlast))% d2 {+ d2 X7 _6 t m ]8 O9 f
(command "copy" s2 "" 3p (polar 1p (* 1.5 pi) (distance 1p 3p)))! M8 `$ T6 a& l- t7 X
(command "subtract" s1 "" s2 s3 s4 (entlast)"")
1 h% ]" m7 F8 a (command "VPOINT" '(1 1 1))
& {' A" s% |6 c (command "shade")" z$ |3 E' K# d
(command "zoom" "e")5 k. F% H; P/ _: u5 _
(setvar "cmdecho" 1)3 R! |0 S, D. D" b' q. f
(setvar "osmode" 4133)
; N* c% e1 I" g (princ)
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;;show函数将file_name幻灯片显示到image_name控件中
" I9 d3 e g& z3 t. n* ](defun show(image_name file_name / x y)7 w# K4 A" b+ d" m9 q
(setq x (dimx_tile image_name));取得image的宽高
9 i$ U; s9 U9 O6 S (setq y (dimy_tile image_name))( C5 n9 o0 X7 d# _/ U/ d
(start_image image_name);幻灯片处理开始, F/ `2 l% H' `4 d: Y
(slide_image -10 -25 x y file_name);幻灯片处理，(-10 -25)为左上角点, O2 U1 P) F2 p9 g) c
(end_image);幻灯片处理结束
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1 P8 O7 ]6 R* u, @2 z( o;;getdata获取编辑控件的值6 N# N' }% O5 [5 v( {
(defun getdata()
; ~# w( P; N$ {# l; s Q (setq d (atof (get_tile "key_D")))
! o4 M& P9 @# q9 ~/ r, }( [ (setq m (atof (get_tile "key_M")))
8 i+ U3 b0 ?, g* i5 s (setq n (atof (get_tile "key_N")))
5 @5 ^: M3 M/ [ (setq h (atof (get_tile "key_H")))! w, Z6 i- W4 B& g) K2 x0 Y P% b0 U
(setq th (atof (get_tile "key_T")))
1 F0 ?0 Q1 p0 C4 t! U)
0 @ I2 w. x& l' O& l& c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8 U& {, V; _5 n4 G+ H3 X" \0 u
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发表于 2008-10-30 15:39