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。/ Q* l2 s( m6 O( p
这一辑是对话框，题材是三维，在三维中和二维有些差异。- i* u$ l7 Q8 W- g: {
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：$ C) L7 c6 Z# p" _4 t. u# s
9 t0 N1 J( E+ ^' t0 F3 F! M* U下面还是来看程序代码吧：3 y K# k) D* p( F' v O
;;;简易3D法兰绘制+ n' p: ]$ Z1 \% B
;;;使用时必先保证D盘的example文件夹里有flange.dcl和flange.sld
) X' j4 ^! V: X# }; O(defun c:flange ()
7 Y" u6 ]2 u$ K9 @% v5 x (setq index (load_dialog "d:\\example\\flange.dcl"));加载对话框, j% R# x: m3 U& t7 n
(if (< index 0) (exit)), h# S6 y) A0 Z# x% r# a# S
(setq next 2)
% i$ k( E: t" Y0 h (while (>= next 2)5 b9 P, f1 m; C! g6 u( M
(if (not (new_dialog "flange" index));初始化对话框
/ Q4 g. x% B) P( W (exit)
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(show "key_image" "d:\\example\\flange.sld")
! L, M! b I' G. A4 p8 ~ (set_tile "key_D"(rtos 100 2 2));初始化控件( v1 Y; `, X9 o6 }
(set_tile "key_M"(rtos 50 2 2))2 f& \: s' Y: {+ `% y+ n
(set_tile "key_N"(rtos 25 2 2))% L+ U) w1 j& q6 K
(set_tile "key_H"(rtos 50 2 2))
6 z9 C' n3 m" n/ }' ^4 W' \+ A (set_tile "key_T"(rtos 20 2 2))
; z) D* Y! E5 b& g8 ` (action_tile "accept" "(getdata) (done_dialog 1)" );accept动作+ ]- h# T1 n2 s& ]5 [8 O9 ]
(action_tile "cancel" "(done_dialog 0)" );cancel动作
% ~) R8 _9 u4 g; A7 R$ X! u5 j (setq next (start_dialog));显示对话框 _; ~: ]6 }0 P' G
(cond
2 S& G1 ]8 x% B! c1 n ((= next 1)
( Q; x- n7 `( U (draw)1 ^" V8 r) Z; F- E+ L8 U
); Y7 h4 ~0 d6 ~! @* {3 a) F
((= next 0)* R3 z4 v) D* a: G
(prompt "\n取消了法兰绘制")/ ~" A5 T' w% b
)
7 A. \$ y3 b! l8 x( o; x( `; n) u );cond
, C+ x' M8 o1 t& b i9 A# _8 v );while5 e5 l; x- ^1 k+ ?0 |0 I
(unload_dialog index);卸载对话框
" m- V# M4 r; v" g; M (princ)
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;;draw
' f1 x7 S! F1 ]# q' j) A8 L(defun draw();/ 1p 2p p0 p1 p2 p3 p4 p5 s1 s2 s3): r! j" c6 }( p8 c6 [
(setvar "cmdecho" 0)
`( k0 W1 U8 t2 V6 G: M! Z (setvar "osmode" 0)2 {. o1 ]; ?9 S( `8 a+ A. S
(setvar "isolines" 20)! W: P* M, j! e) {, @9 x& a
(command "ucs" "" "");在wcs中工作
8 _7 `4 Q" c9 v H (setq 1p '(0 0 0)
( k& k0 I) { h 2P (list 0 h 0)1 F2 Y9 J, h" L
p0 (polar 1p 0 (* 0.5 n))2 N5 E# f" A' Y0 W0 I7 m- c
p1 (polar 1p 0 (* 0.5 d))
3 N# m, v5 R% z+ {+ n+ K0 s p2 (polar p1 (* 0.5 pi) th)! l K# l) E" [6 u6 ]& |$ m% z
p3 (polar p2 pi (* 0.5 (- d m)))
8 M" w9 l. ~" h- Y$ O8 [7 ~/ F( x p5 (polar p0 (* 0.5 pi) h)
1 c0 _8 t H! w& U/ h p4 (polar p5 0 (* 0.5 (- m n)))+ t/ P/ C" k( ]# v; ~
3p (polar 1p 0 (* 0.25 (+ d m)))+ T& \- k% s% R, \+ \; N0 c8 V: y
4p (polar 3p (* 0.5 pi) th)9 J( e: {. A3 `/ v [
)% { S8 ^& T& A0 i; L8 G8 O
(command "pline" p0 p1 p2 p3 p4 p5 "c")
+ x- W. \7 a# m# W3 K (command "revolve" (entlast) "" "y" 360);(entlast)获取最后生成的图元8 r3 g& Z, E% u6 w
(setq s1 (entlast));做三维，常常需要把一些后面用到的对象保存起来3 O& R9 K# R8 a" V1 J
(command "ucs" "n" "x" "");ucs绕x轴旋转90度
2 g+ G5 U! `; [. {" _: k (setq 2p (trans 2p 0 1));;点从wcs转到ucs，这是三维重点/ r. `4 U& S# S, B0 H
(setq 3p (trans 3p 0 1))2 T7 ]* a5 w' F6 g7 `* a1 `
(setq 4p (trans 4p 0 1))
6 n" `- v* M( H4 H; I (command "cylinder" 3p (* 0.0625 (- d m)) (- th))! b9 ^3 A" T. t$ ?
(setq s2 (entlast))
+ I2 g# l* a; a7 C% O8 i (command "cylinder" 4p (* 0.125 (- d m)) (* 0.2 th))% r+ h! _. e `8 w, ^% A) e
(command "union" s2 (entlast) "")( F! o; D; D4 I) O1 V- x! ~9 a9 h
(setq s2 (entlast))6 ^- Z& M* {: v" v
(command "copy" s2 "" 3p (polar 1p (* 0.5 pi) (distance 1p 3p)))8 \, S8 w y: \7 P% H
(setq s3 (entlast))
* i8 J5 [, o! {" Q8 O+ U7 P (command "copy" s2 "" 3p (polar 1p pi (distance 1p 3p)))
8 h* \4 w0 U9 o5 C4 A# l( N1 b (setq s4 (entlast))" Z- ]0 G0 @ y" B: K5 H
(command "copy" s2 "" 3p (polar 1p (* 1.5 pi) (distance 1p 3p)))
7 r3 Q) U- N4 h# j (command "subtract" s1 "" s2 s3 s4 (entlast)""); L1 w" z0 b1 d9 U1 n3 t. V
(command "VPOINT" '(1 1 1)); j; z# ? f# z
(command "shade")
1 g7 N6 n# e7 F4 U: N' ^8 h& | (command "zoom" "e")
" a% I4 Q [$ q1 X. ~7 D6 z- o2 \ (setvar "cmdecho" 1)
/ a& w: u) [) T# w- X( c# t0 H (setvar "osmode" 4133)
1 Y( z8 m4 G, S8 }7 C6 c* H (princ)
# n3 @+ [" s8 d, B! Y% W3 Y5 ~)
0 \# ^( w, W+ @; `2 h, h J;;show函数将file_name幻灯片显示到image_name控件中
$ i4 r2 B" U2 X" y& `(defun show(image_name file_name / x y)
. Z6 I; k/ O5 Q- @ (setq x (dimx_tile image_name));取得image的宽高
3 ?$ `6 }6 ?/ Q; W. q& f (setq y (dimy_tile image_name))) b2 K; o$ o3 R) D$ m% K2 ^( N
(start_image image_name);幻灯片处理开始3 Z, y. A% G5 @/ S$ g: B
(slide_image -10 -25 x y file_name);幻灯片处理，(-10 -25)为左上角点
, J5 M7 `6 L) q" [% e. v, [, H (end_image);幻灯片处理结束
* u2 {7 \& E# t7 S; O" i$ X# ^) i) K% U)
, q' {1 K- m0 Q; s2 b2 w# g;;getdata获取编辑控件的值
' [" Y- i h: @# c(defun getdata()1 N5 ~7 V/ {8 G" I4 z K5 F
(setq d (atof (get_tile "key_D")))
+ w$ z5 L/ _7 q) m (setq m (atof (get_tile "key_M")))2 ]2 Z- _! S- y$ K9 Z$ U
(setq n (atof (get_tile "key_N")))
* v8 _3 y7 a; F (setq h (atof (get_tile "key_H")))' j/ `: ?& b. ~- N
(setq th (atof (get_tile "key_T")))' w$ f4 o, J3 ^: {* u- U
) 1 V: e- O' e* C5 o
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 S2 {1 f+ X: X5 i
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发表于 2008-10-30 15:39