[讨论]转换矩阵的简单用法 小时钟

yxp

特点：
1  几乎不占用CPU的使用率，运行过程 CPU 处于 1～2%的使用率
2  时钟的背景图案和指针可以自己重画，用源码里的专用函数生成
3  调用 grvecs 函数绘图，不产生对象图元
4  按ESC 、双击、右键退出
......
高飞鸟的转换矩阵难以理解，这个程序主要是为了试验转换矩阵，完善后可以作为屏幕保护。
A 为二维平移、缩放的转换矩阵函数； B 为二维旋转转换矩阵函数；如果有平移缩放、又有旋转，应该如何表示？
实验了一下 A.B 的矩阵相乘好像不对。

目前缺少循环退出代码，没有键盘反应器...  得考虑用多线程技术

2. ;;===========================================
   
3. ;;原创: yxp  2010-7-2
   
4. ;;===========================================
   
5. (vl-load-com)
   
6. (defun c:tim( / *error*)
   
7. (defun *error*(s)(princ "\n时钟退出"))
   
8. (setvar "cmdecho" 0)
   
9. (command "zoom" "c" "0,0" "22")
   
10. (setq sssc (/ (getvar "VIEWSIZE") 21)
    
11.        pxy (getvar "VIEWCTR")
    
12.        *con* t)
    
13. (while *con* ;;如何用应器或grread来终止循环???
    
14.   (command "delay" "1000")
    
15.   (command "showtime")
    
16. )
    
17. (setvar "cmdecho" 0)
    
18. (princ)
    
19. )
    
20. 
    
21. ;;创建鼠标双击和右键的反应器
    
22. (vlr-mouse-Reactor nil
    
23.         '((:vlr-beginDoubleClick . timestop)
    
24.           (:vlr-beginrightclick . timestop)))
    
25. (defun timestop (r p)(setq *con* nil)(princ)) ;;回调函数为终止循环
    
26. 
    
27. ;;屏幕显示时钟
    
28. (defun showtime()
    
29.   (redraw)
    
30. ;;获取当前时间
    
31.   (setq stim (getvar "date")  dan (/ pi 30)
    
32.         stim (* 86400.0 (- stim (fix stim)))
    
33.         hh (fix (/ stim 3600))
    
34.         mm (fix (/ (- stim (* hh 3600)) 60))
    
35.         ss (fix (- stim (* mm 60) (* hh 3600)))
    
36.         hh (if (>= hh 12)(- hh 12) hh))
    
37.    ;;显示表盘2
    
38.    (grvecs (clockback2)(MAT:Scaling pxy sssc))
    
39.    ;;显示时针
    
40.    (grvecs (sshour)(MAT:Rotation '(0 0) (- (* dan hh -5) (* dan (/ mm 12)))))
    
41.    ;;显示分针
    
42.    (grvecs (ssminu)(MAT:Rotation '(0 0) (* dan mm -1)))
    
43.    ;;显示秒针
    
44.    (grvecs (sssec)(MAT:Rotation '(0 0) (* dan ss -1)))
    
45. )
    
46. 
    
47. (vlax-add-cmd "showtime" 'showtime);;因为command函数和lisp的异步执行
    
48. 
    
49. 
    
50. 
    
51. ;;==================================================
    
52. ;;比例缩放矩阵，本函数来自偶像-高飞鸟
    
53. ;;==================================================
    
54. (defun MAT:Scaling ( Cen scale / s)
    
55.   (setq s (- 1 scale))
    
56.   (list
    
57.     (list scale 0. 0. (* s (car Cen)))
    
58.     (list 0. scale 0. (* s (cadr Cen)))
    
59.     (list 0. 0. scale (* s (caddr Cen)))
    
60.     '(0. 0. 0. 1.)
    
61.   )
    
62. )
    
63. 
    
64. ;;==================================================
    
65. ;;二维旋转变换矩阵，本函数来自偶像-高飞鸟
    
66. ;;==================================================
    
67. (defun MAT:Rotation ( Cen ang / c s x y)
    
68.   (setq c (cos ang) s (sin ang))
    
69.   (setq x (car Cen) y (cadr Cen))
    
70.   (list
    
71.     (list c (- s) 0. (- x (- (* c x) (* s y))))
    
72.     (list s    c  0. (- y (+ (* s x) (* c y))))
    
73.     '(0. 0. 1. 0.)
    
74.     '(0. 0. 0. 1.)
    
75.   )
    
76. )
    
77. 
    
78. 
    
79. ;;表盘坐标数据的生成程序
    
80. ;;表盘中心为 0,0 点，高度不超过 20，用 Line 画好后用本程序生成代码
    
81. (defun c:getlinexy()
    
82. (setq ss (ssget '((0 . "LINE"))) n 0 ptq '())
    
83. (if ss (progn
    
84.   (repeat (sslength ss)
    
85.      (setq dxf (entget (ssname ss n))
    
86.            n (1+ n)
    
87.            ptq (cons (mapcar '(lambda(n)(gdxf n dxf)) '(62 10 11)) ptq))
    
88. )))
    
89. (setq f (open "e:\\coor.txt" "w"))
    
90. (mapcar '(lambda(x)(princ x f)(princ "\n" f)) ptq)
    
91. (close f)
    
92. (princ)
    
93. )
    
94. 
    
95. 
    
96. ;;表盘1
    
97. (defun clockback1()
    
98. (apply 'append '(
    
99. (52 (0.15 -8.603) (-0.033 -8.603))
    
100. (52 (-0.033 -8.603) (-0.183 -8.761))
     
101. (52 (-0.183 -8.761) (-0.27 -8.864))
     
102. (52 (-0.27 -8.864) (-0.27 -9.267))
     
103. (52 (-0.27 -9.267) (-0.13 -9.398))
     
104. (52 (-0.13 -9.398) (0.141 -9.398))
     
105. (52 (0.141 -9.398) (0.265 -9.267))
     
106. (52 (0.265 -9.267) (0.265 -9.128))
     
107. (52 (0.265 -9.128) (0.128 -9.004))
     
108. (52 (0.128 -9.004) (-0.27 -9.004))
     
109. (252 (9.633 -9.588) (9.687 -9.534))
     
110. (252 (9.687 -9.534) (9.796 -9.534))
     
111. (252 (9.796 -9.534) (9.849 -9.588))
     
112. (252 (9.849 -9.588) (9.849 -9.695))
     
113. (252 (9.849 -9.695) (9.795 -9.748))
     
114. (252 (9.795 -9.748) (9.633 -9.748))
     
115. (252 (9.633 -9.533) (9.633 -9.861))
     
116. (252 (9.306 -9.532) (9.524 -9.75))
     
117. (252 (9.307 -9.75) (9.522 -9.534))
     
118. (252 (9.198 -9.535) (9.038 -9.859))
     
119. (252 (9.038 -9.859) (8.986 -9.859))
     
120. (252 (8.982 -9.531) (9.09 -9.75))
     
121. (52 (-9.153 -0.394) (-8.97 -0.394))
     
122. (52 (-8.97 -0.394) (-8.821 -0.236))
     
123. (52 (-8.821 -0.236) (-8.734 -0.133))
     
124. (52 (-8.734 -0.133) (-8.734 0.27))
     
125. (52 (-8.734 0.27) (-8.873 0.401))
     
126. (52 (-8.873 0.401) (-9.144 0.401))
     
127. (52 (-9.144 0.401) (-9.268 0.27))
     
128. (52 (-9.268 0.27) (-9.268 0.131))
     
129. (52 (-9.268 0.131) (-9.132 0.006))
     
130. (52 (-9.132 0.006) (-8.734 0.006))
     
131. (52 (9.134 0.001) (9.268 -0.133))
     
132. (52 (9.268 -0.133) (9.268 -0.265))
     
133. (52 (9.268 -0.265) (9.133 -0.399))
     
134. (52 (9.133 -0.399) (8.866 -0.399))
     
135. (52 (8.866 -0.399) (8.733 -0.265))
     
136. (52 (8.733 0.265) (8.868 0.401))
     
137. (52 (8.868 0.401) (9.133 0.401))
     
138. (52 (9.133 0.401) (9.264 0.267))
     
139. (52 (9.264 0.267) (9.264 0.133))
     
140. (52 (9.264 0.133) (9.134 0.001))
     
141. (52 (9.134 0.001) (8.999 0.001))
     
142. (52 (-0.001 9.265) (0.134 9.401))
     
143. (52 (0.134 9.401) (0.399 9.401))
     
144. (52 (0.399 9.401) (0.533 9.267))
     
145. (52 (0.533 9.267) (0.533 9.129))
     
146. (52 (0.533 9.129) (0.401 9.001))
     
147. (52 (0.401 9.001) (0.134 9.001))
     
148. (52 (0.134 9.001) (-0.002 8.856))
     
149. (52 (-0.002 8.856) (-0.002 8.601))
     
150. (52 (-0.002 8.601) (0.535 8.601))
     
151. (52 (-0.534 8.6) (-0.267 8.6))
     
152. (52 (-0.533 9.267) (-0.4 9.4))
     
153. (52 (-0.4 9.4) (-0.4 8.6))
     
154. (200 (-10.3 -10.3) (-10.3 10.3))
     
155. (200 (-10.3 10.3) (10.3 10.3))
     
156. (200 (10.3 10.3) (10.3 -10.3))
     
157. (200 (10.3 -10.3) (-10.3 -10.3))
     
158. (206 (-10.5 -10.5) (-10.5 10.5))
     
159. (206 (-10.5 10.5) (10.5 10.5))
     
160. (206 (10.5 10.5) (10.5 -10.5))
     
161. (206 (10.5 -10.5) (-10.5 -10.5))
     
162. (4 (10.0 0.0) (9.5 0.0))
     
163. (4 (-10.0 0.0) (-9.5 0.0))
     
164. (4 (0.0 -10.0) (0.0 -9.5))
     
165. (4 (0.0 10.0) (0.0 9.5))
     
166. (4 (-10.0 -10.0) (-10.0 10.0))
     
167. (4 (-10.0 10.0) (10.0 10.0))
     
168. (4 (10.0 10.0) (10.0 -10.0))
     
169. (4 (10.0 -10.0) (-10.0 -10.0))
     
170. (2 (0.0 0.0) (0.0 0.0))
     
171. (2 (-0.132 0.132) (-0.18 0.048))
     
172. (2 (-0.18 0.048) (-0.18 -0.048))
     
173. (2 (-0.18 -0.048) (-0.132 -0.132))
     
174. (2 (-0.132 -0.132) (-0.048 -0.18))
     
175. (2 (-0.048 -0.18) (0.048 -0.18))
     
176. (2 (0.048 -0.18) (0.132 -0.132))
     
177. (2 (0.132 -0.132) (0.18 -0.048))
     
178. (2 (0.18 -0.048) (0.18 0.048))
     
179. (2 (0.18 0.048) (0.132 0.132))
     
180. (2 (0.132 0.132) (0.048 0.18))
     
181. (2 (0.048 0.18) (-0.048 0.18))
     
182. (2 (-0.048 0.18) (-0.132 0.132))
     
183. )))
     
184. 
     
185. ;;表盘2
     
186. (defun clockback2()
     
187. (apply 'append '(
     
188. (52 (0.15 -8.603) (-0.033 -8.603))
     
189. (52 (-0.033 -8.603) (-0.183 -8.761))
     
190. (52 (-0.183 -8.761) (-0.27 -8.864))
     
191. (52 (-0.27 -8.864) (-0.27 -9.267))
     
192. (52 (-0.27 -9.267) (-0.13 -9.398))
     
193. (52 (-0.13 -9.398) (0.141 -9.398))
     
194. (52 (0.141 -9.398) (0.265 -9.267))
     
195. (52 (0.265 -9.267) (0.265 -9.128))
     
196. (52 (0.265 -9.128) (0.128 -9.004))
     
197. (52 (0.128 -9.004) (-0.27 -9.004))
     
198. (70 (0.217 5.847) (0.271 5.9))
     
199. (70 (0.271 5.9) (0.381 5.9))
     
200. (70 (0.381 5.9) (0.433 5.847))
     
201. (70 (0.433 5.847) (0.433 5.74))
     
202. (70 (0.433 5.74) (0.38 5.686))
     
203. (70 (0.38 5.686) (0.217 5.686))
     
204. (70 (0.217 5.902) (0.217 5.573))
     
205. (70 (-0.109 5.903) (0.109 5.685))
     
206. (70 (-0.108 5.685) (0.107 5.9))
     
207. (70 (-0.218 5.899) (-0.378 5.575))
     
208. (70 (-0.378 5.575) (-0.429 5.575))
     
209. (70 (-0.434 5.904) (-0.325 5.685))
     
210. (52 (-9.153 -0.394) (-8.97 -0.394))
     
211. (52 (-8.97 -0.394) (-8.821 -0.236))
     
212. (52 (-8.821 -0.236) (-8.734 -0.133))
     
213. (52 (-8.734 -0.133) (-8.734 0.27))
     
214. (52 (-8.734 0.27) (-8.873 0.401))
     
215. (52 (-8.873 0.401) (-9.144 0.401))
     
216. (52 (-9.144 0.401) (-9.268 0.27))
     
217. (52 (-9.268 0.27) (-9.268 0.131))
     
218. (52 (-9.268 0.131) (-9.132 0.006))
     
219. (52 (-9.132 0.006) (-8.734 0.006))
     
220. (52 (9.134 0.001) (9.268 -0.133))
     
221. (52 (9.268 -0.133) (9.268 -0.265))
     
222. (52 (9.268 -0.265) (9.133 -0.399))
     
223. (52 (9.133 -0.399) (8.866 -0.399))
     
224. (52 (8.866 -0.399) (8.733 -0.265))
     
225. (52 (8.733 0.265) (8.868 0.401))
     
226. (52 (8.868 0.401) (9.133 0.401))
     
227. (52 (9.133 0.401) (9.264 0.267))
     
228. (52 (9.264 0.267) (9.264 0.133))
     
229. (52 (9.264 0.133) (9.134 0.001))
     
230. (52 (9.134 0.001) (8.999 0.001))
     
231. (52 (-0.001 9.265) (0.134 9.401))
     
232. (52 (0.134 9.401) (0.399 9.401))
     
233. (52 (0.399 9.401) (0.533 9.267))
     
234. (52 (0.533 9.267) (0.533 9.129))
     
235. (52 (0.533 9.129) (0.401 9.001))
     
236. (52 (0.401 9.001) (0.134 9.001))
     
237. (52 (0.134 9.001) (-0.002 8.856))
     
238. (52 (-0.002 8.856) (-0.002 8.601))
     
239. (52 (-0.002 8.601) (0.535 8.601))
     
240. (52 (-0.534 8.6) (-0.267 8.6))
     
241. (52 (-0.533 9.267) (-0.4 9.4))
     
242. (52 (-0.4 9.4) (-0.4 8.6))
     
243. (2 (0.0 0.0) (0.0 0.0))
     
244. (2 (-0.132 0.132) (-0.18 0.048))
     
245. (2 (-0.18 0.048) (-0.18 -0.048))
     
246. (2 (-0.18 -0.048) (-0.132 -0.132))
     
247. (2 (-0.132 -0.132) (-0.048 -0.18))
     
248. (2 (-0.048 -0.18) (0.048 -0.18))
     
249. (2 (0.048 -0.18) (0.132 -0.132))
     
250. (2 (0.132 -0.132) (0.18 -0.048))
     
251. (2 (0.18 -0.048) (0.18 0.048))
     
252. (2 (0.18 0.048) (0.132 0.132))
     
253. (2 (0.132 0.132) (0.048 0.18))
     
254. (2 (0.048 0.18) (-0.048 0.18))
     
255. (2 (-0.048 0.18) (-0.132 0.132))
     
256. (70 (1.045 -9.945) (1.024 -9.746))
     
257. (1 (10.0 0.02) (9.5 0.02))
     
258. (1 (10.0 -0.02) (9.5 -0.02))
     
259. (1 (8.67 4.983) (8.237 4.733))
     
260. (1 (8.65 5.017) (8.217 4.767))
     
261. (1 (5.017 8.65) (4.767 8.217))
     
262. (1 (4.983 8.67) (4.733 8.237))
     
263. (1 (0.02 10.0) (0.02 9.5))
     
264. (1 (-0.02 10.0) (-0.02 9.5))
     
265. (1 (-4.983 8.67) (-4.733 8.237))
     
266. (1 (-5.017 8.65) (-4.767 8.217))
     
267. (1 (-8.65 5.017) (-8.217 4.767))
     
268. (1 (-8.67 4.983) (-8.237 4.733))
     
269. (1 (-10.0 0.02) (-9.5 0.02))
     
270. (1 (-10.0 -0.02) (-9.5 -0.02))
     
271. (1 (-8.67 -4.983) (-8.237 -4.733))
     
272. (1 (-8.65 -5.017) (-8.217 -4.767))
     
273. (1 (-5.017 -8.65) (-4.767 -8.217))
     
274. (1 (-4.983 -8.67) (-4.733 -8.237))
     
275. (1 (-0.02 -10.0) (-0.02 -9.5))
     
276. (1 (0.02 -10.0) (0.02 -9.5))
     
277. (1 (4.983 -8.67) (4.733 -8.237))
     
278. (1 (5.017 -8.65) (4.767 -8.217))
     
279. (1 (8.65 -5.017) (8.217 -4.767))
     
280. (1 (8.67 -4.983) (8.237 -4.733))
     
281. (70 (2.079 -9.781) (2.038 -9.586))
     
282. (70 (3.09 -9.511) (3.028 -9.32))
     
283. (70 (4.067 -9.135) (3.986 -8.953))
     
284. (70 (5.878 -8.09) (5.76 -7.928))
     
285. (70 (6.691 -7.431) (6.557 -7.283))
     
286. (70 (7.431 -6.691) (7.283 -6.557))
     
287. (70 (8.09 -5.878) (7.928 -5.76))
     
288. (70 (9.135 -4.067) (8.953 -3.986))
     
289. (70 (9.511 -3.09) (9.32 -3.028))
     
290. (70 (9.781 -2.079) (9.586 -2.038))
     
291. (70 (9.945 -1.045) (9.746 -1.024))
     
292. (70 (9.945 1.045) (9.746 1.024))
     
293. (70 (9.781 2.079) (9.586 2.038))
     
294. (70 (9.511 3.09) (9.32 3.028))
     
295. (70 (9.135 4.067) (8.953 3.986))
     
296. (70 (8.09 5.878) (7.928 5.76))
     
297. (70 (7.431 6.691) (7.283 6.557))
     
298. (70 (6.691 7.431) (6.557 7.283))
     
299. (70 (5.878 8.09) (5.76 7.928))
     
300. (70 (4.067 9.135) (3.986 8.953))
     
301. (70 (3.09 9.511) (3.028 9.32))
     
302. (70 (2.079 9.781) (2.038 9.586))
     
303. (70 (1.045 9.945) (1.024 9.746))
     
304. (70 (-1.045 9.945) (-1.024 9.746))
     
305. (70 (-2.079 9.781) (-2.038 9.586))
     
306. (70 (-3.09 9.511) (-3.028 9.32))
     
307. (70 (-4.067 9.135) (-3.986 8.953))
     
308. (70 (-5.878 8.09) (-5.76 7.928))
     
309. (70 (-6.691 7.431) (-6.557 7.283))
     
310. (70 (-7.431 6.691) (-7.283 6.557))
     
311. (70 (-8.09 5.878) (-7.928 5.76))
     
312. (70 (-9.135 4.067) (-8.953 3.986))
     
313. (70 (-9.511 3.09) (-9.32 3.028))
     
314. (70 (-9.781 2.079) (-9.586 2.038))
     
315. (70 (-9.945 1.045) (-9.746 1.024))
     
316. (70 (-9.945 -1.045) (-9.746 -1.024))
     
317. (70 (-9.781 -2.079) (-9.586 -2.038))
     
318. (70 (-9.511 -3.09) (-9.32 -3.028))
     
319. (70 (-9.135 -4.067) (-8.953 -3.986))
     
320. (70 (-8.09 -5.878) (-7.928 -5.76))
     
321. (70 (-7.431 -6.691) (-7.283 -6.557))
     
322. (70 (-6.691 -7.431) (-6.557 -7.283))
     
323. (70 (-5.878 -8.09) (-5.76 -7.928))
     
324. (70 (-4.067 -9.135) (-3.986 -8.953))
     
325. (70 (-3.09 -9.511) (-3.028 -9.32))
     
326. (70 (-2.079 -9.781) (-2.038 -9.586))
     
327. (70 (-1.045 -9.945) (-1.024 -9.746))
     
328. (206 (0.0 10.5) (-2.183 10.271))
     
329. (206 (-2.183 10.271) (-4.271 9.592))
     
330. (206 (-4.271 9.592) (-6.172 8.495))
     
331. (206 (-6.172 8.495) (-7.803 7.026))
     
332. (206 (-7.803 7.026) (-9.093 5.25))
     
333. (206 (-9.093 5.25) (-9.986 3.245))
     
334. (206 (-9.986 3.245) (-10.442 1.098))
     
335. (206 (-10.442 1.098) (-10.442 -1.098))
     
336. (206 (-10.442 -1.098) (-9.986 -3.245))
     
337. (206 (-9.986 -3.245) (-9.093 -5.25))
     
338. (206 (-9.093 -5.25) (-7.803 -7.026))
     
339. (206 (-7.803 -7.026) (-6.172 -8.495))
     
340. (206 (-6.172 -8.495) (-4.271 -9.592))
     
341. (206 (-4.271 -9.592) (-2.183 -10.271))
     
342. (206 (-2.183 -10.271) (0.0 -10.5))
     
343. (206 (0.0 -10.5) (2.183 -10.271))
     
344. (206 (2.183 -10.271) (4.271 -9.592))
     
345. (206 (4.271 -9.592) (6.172 -8.495))
     
346. (206 (6.172 -8.495) (7.803 -7.026))
     
347. (206 (7.803 -7.026) (9.093 -5.25))
     
348. (206 (9.093 -5.25) (9.986 -3.245))
     
349. (206 (9.986 -3.245) (10.442 -1.098))
     
350. (206 (10.442 -1.098) (10.442 1.098))
     
351. (206 (10.442 1.098) (9.986 3.245))
     
352. (206 (9.986 3.245) (9.093 5.25))
     
353. (206 (9.093 5.25) (7.803 7.026))
     
354. (206 (7.803 7.026) (6.172 8.495))
     
355. (206 (6.172 8.495) (4.271 9.592))
     
356. (206 (4.271 9.592) (2.183 10.271))
     
357. (206 (2.183 10.271) (0.0 10.5))
     
358. (4 (0.0 10.0) (-1.045 9.945))
     
359. (4 (-1.045 9.945) (-2.079 9.781))
     
360. (4 (-2.079 9.781) (-3.09 9.511))
     
361. (4 (-3.09 9.511) (-4.067 9.135))
     
362. (4 (-4.067 9.135) (-5.0 8.66))
     
363. (4 (-5.0 8.66) (-5.878 8.09))
     
364. (4 (-5.878 8.09) (-6.691 7.431))
     
365. (4 (-6.691 7.431) (-7.431 6.691))
     
366. (4 (-7.431 6.691) (-8.09 5.878))
     
367. (4 (-8.09 5.878) (-8.66 5.0))
     
368. (4 (-8.66 5.0) (-9.135 4.067))
     
369. (4 (-9.135 4.067) (-9.511 3.09))
     
370. (4 (-9.511 3.09) (-9.781 2.079))
     
371. (4 (-9.781 2.079) (-9.945 1.045))
     
372. (4 (-9.945 1.045) (-10.0 0.0))
     
373. (4 (-10.0 0.0) (-9.945 -1.045))
     
374. (4 (-9.945 -1.045) (-9.781 -2.079))
     
375. (4 (-9.781 -2.079) (-9.511 -3.09))
     
376. (4 (-9.511 -3.09) (-9.135 -4.067))
     
377. (4 (-9.135 -4.067) (-8.66 -5.0))
     
378. (4 (-8.66 -5.0) (-8.09 -5.878))
     
379. (4 (-8.09 -5.878) (-7.431 -6.691))
     
380. (4 (-7.431 -6.691) (-6.691 -7.431))
     
381. (4 (-6.691 -7.431) (-5.878 -8.09))
     
382. (4 (-5.878 -8.09) (-5.0 -8.66))
     
383. (4 (-5.0 -8.66) (-4.067 -9.135))
     
384. (4 (-4.067 -9.135) (-3.09 -9.511))
     
385. (4 (-3.09 -9.511) (-2.079 -9.781))
     
386. (4 (-2.079 -9.781) (-1.045 -9.945))
     
387. (4 (-1.045 -9.945) (0.0 -10.0))
     
388. (4 (0.0 -10.0) (1.045 -9.945))
     
389. (4 (1.045 -9.945) (2.079 -9.781))
     
390. (4 (2.079 -9.781) (3.09 -9.511))
     
391. (4 (3.09 -9.511) (4.067 -9.135))
     
392. (4 (4.067 -9.135) (5.0 -8.66))
     
393. (4 (5.0 -8.66) (5.878 -8.09))
     
394. (4 (5.878 -8.09) (6.691 -7.431))
     
395. (4 (6.691 -7.431) (7.431 -6.691))
     
396. (4 (7.431 -6.691) (8.09 -5.878))
     
397. (4 (8.09 -5.878) (8.66 -5.0))
     
398. (4 (8.66 -5.0) (9.135 -4.067))
     
399. (4 (9.135 -4.067) (9.511 -3.09))
     
400. (4 (9.511 -3.09) (9.781 -2.079))
     
401. (4 (9.781 -2.079) (9.945 -1.045))
     
402. (4 (9.945 -1.045) (10.0 0.0))
     
403. (4 (10.0 0.0) (9.945 1.045))
     
404. (4 (9.945 1.045) (9.781 2.079))
     
405. (4 (9.781 2.079) (9.511 3.09))
     
406. (4 (9.511 3.09) (9.135 4.067))
     
407. (4 (9.135 4.067) (8.66 5.0))
     
408. (4 (8.66 5.0) (8.09 5.878))
     
409. (4 (8.09 5.878) (7.431 6.691))
     
410. (4 (7.431 6.691) (6.691 7.431))
     
411. (4 (6.691 7.431) (5.878 8.09))
     
412. (4 (5.878 8.09) (5.0 8.66))
     
413. (4 (5.0 8.66) (4.067 9.135))
     
414. (4 (4.067 9.135) (3.09 9.511))
     
415. (4 (3.09 9.511) (2.079 9.781))
     
416. (4 (2.079 9.781) (1.045 9.945))
     
417. (4 (1.045 9.945) (0.0 10.0))
     
418. )))
     
419. 
     
420. ;;时针
     
421. (defun sshour()
     
422. (apply 'append '(
     
423. (1 (0.115 -0.4) (-0.115 -0.4))
     
424. (1 (0.06 3.7) (0.2 3.7))
     
425. (1 (0.2 3.7) (0.0 4.5))
     
426. (1 (0.0 4.5) (-0.2 3.7))
     
427. (1 (-0.2 3.7) (-0.06 3.7))
     
428. (1 (0.06 3.7) (0.115 -0.4))
     
429. (1 (-0.115 -0.4) (-0.06 3.7))
     
430. )))
     
431. ;;分针
     
432. (defun ssminu()
     
433. (apply 'append '(
     
434. (70 (0.128 5.902) (0.078 6.172))
     
435. (70 (-0.128 5.902) (-0.078 6.172))
     
436. (70 (0.0 6.172) (0.0 6.552))
     
437. (70 (-0.078 6.172) (0.078 6.172))
     
438. (70 (-0.128 5.902) (0.128 5.902))
     
439. (70 (-0.115 -0.7) (0.115 -0.7))
     
440. (70 (0.115 -0.7) (0.025 5.902))
     
441. (70 (-0.115 -0.7) (-0.025 5.902))
     
442. )))
     
443. ;;秒针
     
444. (defun sssec()
     
445. (apply 'append '(
     
446. (115 (-0.115 -1.0) (0.115 -1.0))
     
447. (115 (0.0 7.906) (0.0 8.4))
     
448. (115 (-0.206 7.7) (-0.178 7.597))
     
449. (115 (-0.178 7.597) (-0.103 7.522))
     
450. (115 (-0.103 7.522) (0.0 7.494))
     
451. (115 (0.0 7.494) (0.103 7.522))
     
452. (115 (0.103 7.522) (0.178 7.597))
     
453. (115 (0.178 7.597) (0.206 7.7))
     
454. (115 (0.206 7.7) (0.178 7.803))
     
455. (115 (0.178 7.803) (0.103 7.878))
     
456. (115 (0.103 7.878) (0.0 7.906))
     
457. (115 (0.0 7.906) (-0.103 7.878))
     
458. (115 (-0.103 7.878) (-0.178 7.803))
     
459. (115 (-0.178 7.803) (-0.206 7.7))
     
460. (115 (-0.115 -1.0) (-0.025 7.501))
     
461. (115 (0.115 -1.0) (0.025 7.501))
     
462. )))
     
463. 
     
464. 
     
465. (defun gdxf(n x)
     
466. (cond ((= n 62) (cdr (assoc n x)))
     
467. ((or (= n 10)(= n 11))(setq xx (cdr (assoc n x)))
     
468.   (list (atof (rtos (car xx) 2 3)) (atof (rtos (cadr xx) 2 3))))
     
469. ))
     

;;===========================================<br /> ;;原创: yxp  2010-7-2<br /> ;;===========================================<br /> (vl-load-com)<br /> (defun c:tim( / *error*)<br /> (defun *error*(s)(princ "\n时钟退出"))<br /> (setvar "cmdecho" 0)<br /> (command "zoom" "c" "0,0" "22")<br /> (setq sssc (/ (getvar "VIEWSIZE") 21)<br />        pxy (getvar "VIEWCTR")<br />        *con* t)<br /> (while *con* ;;如何用应器或grread来终止循环???<br />   (command "delay" "1000")<br />   (command "showtime")<br /> )<br /> (setvar "cmdecho" 0)<br /> (princ)<br /> )<br /> <br /> ;;创建鼠标双击和右键的反应器<br /> (vlr-mouse-Reactor nil<br />         '((:vlr-beginDoubleClick . timestop)<br />           (:vlr-beginrightclick . timestop)))<br /> (defun timestop (r p)(setq *con* nil)(princ)) ;;回调函数为终止循环<br /> <br /> ;;屏幕显示时钟<br /> (defun showtime()<br />   (redraw)<br /> ;;获取当前时间<br />   (setq stim (getvar "date")  dan (/ pi 30)<br />         stim (* 86400.0 (- stim (fix stim)))<br />         hh (fix (/ stim 3600))<br />         mm (fix (/ (- stim (* hh 3600)) 60))<br />         ss (fix (- stim (* mm 60) (* hh 3600)))<br />         hh (if (>= hh 12)(- hh 12) hh))<br />    ;;显示表盘2<br />    (grvecs (clockback2)(MAT:Scaling pxy sssc))<br />    ;;显示时针<br />    (grvecs (sshour)(MAT:Rotation '(0 0) (- (* dan hh -5) (* dan (/ mm 12)))))<br />    ;;显示分针<br />    (grvecs (ssminu)(MAT:Rotation '(0 0) (* dan mm -1)))<br />    ;;显示秒针<br />    (grvecs (sssec)(MAT:Rotation '(0 0) (* dan ss -1)))<br /> )<br /> <br /> (vlax-add-cmd "showtime" 'showtime);;因为command函数和lisp的异步执行<br /> <br /> <br /> <br /> ;;==================================================<br /> ;;比例缩放矩阵，本函数来自偶像-高飞鸟<br /> ;;==================================================<br /> (defun MAT:Scaling ( Cen scale / s)<br />   (setq s (- 1 scale))<br />   (list<br />     (list scale 0. 0. (* s (car Cen)))<br />     (list 0. scale 0. (* s (cadr Cen)))<br />     (list 0. 0. scale (* s (caddr Cen)))<br />     '(0. 0. 0. 1.)<br />   )<br /> )<br /> <br /> ;;==================================================<br /> ;;二维旋转变换矩阵，本函数来自偶像-高飞鸟<br /> ;;==================================================<br /> (defun MAT:Rotation ( Cen ang / c s x y)<br />   (setq c (cos ang) s (sin ang))<br />   (setq x (car Cen) y (cadr Cen))<br />   (list<br />     (list c (- s) 0. (- x (- (* c x) (* s y))))<br />     (list s    c  0. (- y (+ (* s x) (* c y))))<br />     '(0. 0. 1. 0.)<br />     '(0. 0. 0. 1.)<br />   )<br /> )<br /> <br /> <br /> ;;表盘坐标数据的生成程序<br /> ;;表盘中心为 0,0 点，高度不超过 20，用 Line 画好后用本程序生成代码<br /> (defun c:getlinexy()<br /> (setq ss (ssget '((0 . "LINE"))) n 0 ptq '())<br /> (if ss (progn<br />   (repeat (sslength ss)<br />      (setq dxf (entget (ssname ss n))<br />            n (1+ n)<br />            ptq (cons (mapcar '(lambda(n)(gdxf n dxf)) '(62 10 11)) ptq))<br /> )))<br /> (setq f (open "e:\\coor.txt" "w"))<br /> (mapcar '(lambda(x)(princ x f)(princ "\n" f)) ptq)<br /> (close f)<br /> (princ)<br /> )<br /> <br /> <br /> ;;表盘1<br /> (defun clockback1()<br /> (apply 'append '(<br /> (52 (0.15 -8.603) (-0.033 -8.603))<br /> (52 (-0.033 -8.603) (-0.183 -8.761))<br /> (52 (-0.183 -8.761) (-0.27 -8.864))<br /> (52 (-0.27 -8.864) (-0.27 -9.267))<br /> (52 (-0.27 -9.267) (-0.13 -9.398))<br /> (52 (-0.13 -9.398) (0.141 -9.398))<br /> (52 (0.141 -9.398) (0.265 -9.267))<br /> (52 (0.265 -9.267) (0.265 -9.128))<br /> (52 (0.265 -9.128) (0.128 -9.004))<br /> (52 (0.128 -9.004) (-0.27 -9.004))<br /> (252 (9.633 -9.588) (9.687 -9.534))<br /> (252 (9.687 -9.534) (9.796 -9.534))<br /> (252 (9.796 -9.534) (9.849 -9.588))<br /> (252 (9.849 -9.588) (9.849 -9.695))<br /> (252 (9.849 -9.695) (9.795 -9.748))<br /> (252 (9.795 -9.748) (9.633 -9.748))<br /> (252 (9.633 -9.533) (9.633 -9.861))<br /> (252 (9.306 -9.532) (9.524 -9.75))<br /> (252 (9.307 -9.75) (9.522 -9.534))<br /> (252 (9.198 -9.535) (9.038 -9.859))<br /> (252 (9.038 -9.859) (8.986 -9.859))<br /> (252 (8.982 -9.531) (9.09 -9.75))<br /> (52 (-9.153 -0.394) (-8.97 -0.394))<br /> (52 (-8.97 -0.394) (-8.821 -0.236))<br /> (52 (-8.821 -0.236) (-8.734 -0.133))<br /> (52 (-8.734 -0.133) (-8.734 0.27))<br /> (52 (-8.734 0.27) (-8.873 0.401))<br /> (52 (-8.873 0.401) (-9.144 0.401))<br /> (52 (-9.144 0.401) (-9.268 0.27))<br /> (52 (-9.268 0.27) (-9.268 0.131))<br /> (52 (-9.268 0.131) (-9.132 0.006))<br /> (52 (-9.132 0.006) (-8.734 0.006))<br /> (52 (9.134 0.001) (9.268 -0.133))<br /> (52 (9.268 -0.133) (9.268 -0.265))<br /> (52 (9.268 -0.265) (9.133 -0.399))<br /> (52 (9.133 -0.399) (8.866 -0.399))<br /> (52 (8.866 -0.399) (8.733 -0.265))<br /> (52 (8.733 0.265) (8.868 0.401))<br /> (52 (8.868 0.401) (9.133 0.401))<br /> (52 (9.133 0.401) (9.264 0.267))<br /> (52 (9.264 0.267) (9.264 0.133))<br /> (52 (9.264 0.133) (9.134 0.001))<br /> (52 (9.134 0.001) (8.999 0.001))<br /> (52 (-0.001 9.265) (0.134 9.401))<br /> (52 (0.134 9.401) (0.399 9.401))<br /> (52 (0.399 9.401) (0.533 9.267))<br /> (52 (0.533 9.267) (0.533 9.129))<br /> (52 (0.533 9.129) (0.401 9.001))<br /> (52 (0.401 9.001) (0.134 9.001))<br /> (52 (0.134 9.001) (-0.002 8.856))<br /> (52 (-0.002 8.856) (-0.002 8.601))<br /> (52 (-0.002 8.601) (0.535 8.601))<br /> (52 (-0.534 8.6) (-0.267 8.6))<br /> (52 (-0.533 9.267) (-0.4 9.4))<br /> (52 (-0.4 9.4) (-0.4 8.6))<br /> (200 (-10.3 -10.3) (-10.3 10.3))<br /> (200 (-10.3 10.3) (10.3 10.3))<br /> (200 (10.3 10.3) (10.3 -10.3))<br /> (200 (10.3 -10.3) (-10.3 -10.3))<br /> (206 (-10.5 -10.5) (-10.5 10.5))<br /> (206 (-10.5 10.5) (10.5 10.5))<br /> (206 (10.5 10.5) (10.5 -10.5))<br /> (206 (10.5 -10.5) (-10.5 -10.5))<br /> (4 (10.0 0.0) (9.5 0.0))<br /> (4 (-10.0 0.0) (-9.5 0.0))<br /> (4 (0.0 -10.0) (0.0 -9.5))<br /> (4 (0.0 10.0) (0.0 9.5))<br /> (4 (-10.0 -10.0) (-10.0 10.0))<br /> (4 (-10.0 10.0) (10.0 10.0))<br /> (4 (10.0 10.0) (10.0 -10.0))<br /> (4 (10.0 -10.0) (-10.0 -10.0))<br /> (2 (0.0 0.0) (0.0 0.0))<br /> (2 (-0.132 0.132) (-0.18 0.048))<br /> (2 (-0.18 0.048) (-0.18 -0.048))<br /> (2 (-0.18 -0.048) (-0.132 -0.132))<br /> (2 (-0.132 -0.132) (-0.048 -0.18))<br /> (2 (-0.048 -0.18) (0.048 -0.18))<br /> (2 (0.048 -0.18) (0.132 -0.132))<br /> (2 (0.132 -0.132) (0.18 -0.048))<br /> (2 (0.18 -0.048) (0.18 0.048))<br /> (2 (0.18 0.048) (0.132 0.132))<br /> (2 (0.132 0.132) (0.048 0.18))<br /> (2 (0.048 0.18) (-0.048 0.18))<br /> (2 (-0.048 0.18) (-0.132 0.132))<br /> )))<br /> <br /> ;;表盘2<br /> (defun clockback2()<br /> (apply 'append '(<br /> (52 (0.15 -8.603) (-0.033 -8.603))<br /> (52 (-0.033 -8.603) (-0.183 -8.761))<br /> (52 (-0.183 -8.761) (-0.27 -8.864))<br /> (52 (-0.27 -8.864) (-0.27 -9.267))<br /> (52 (-0.27 -9.267) (-0.13 -9.398))<br /> (52 (-0.13 -9.398) (0.141 -9.398))<br /> (52 (0.141 -9.398) (0.265 -9.267))<br /> (52 (0.265 -9.267) (0.265 -9.128))<br /> (52 (0.265 -9.128) (0.128 -9.004))<br /> (52 (0.128 -9.004) (-0.27 -9.004))<br /> (70 (0.217 5.847) (0.271 5.9))<br /> (70 (0.271 5.9) (0.381 5.9))<br /> (70 (0.381 5.9) (0.433 5.847))<br /> (70 (0.433 5.847) (0.433 5.74))<br /> (70 (0.433 5.74) (0.38 5.686))<br /> (70 (0.38 5.686) (0.217 5.686))<br /> (70 (0.217 5.902) (0.217 5.573))<br /> (70 (-0.109 5.903) (0.109 5.685))<br /> (70 (-0.108 5.685) (0.107 5.9))<br /> (70 (-0.218 5.899) (-0.378 5.575))<br /> (70 (-0.378 5.575) (-0.429 5.575))<br /> (70 (-0.434 5.904) (-0.325 5.685))<br /> (52 (-9.153 -0.394) (-8.97 -0.394))<br /> (52 (-8.97 -0.394) (-8.821 -0.236))<br /> (52 (-8.821 -0.236) (-8.734 -0.133))<br /> (52 (-8.734 -0.133) (-8.734 0.27))<br /> (52 (-8.734 0.27) (-8.873 0.401))<br /> (52 (-8.873 0.401) (-9.144 0.401))<br /> (52 (-9.144 0.401) (-9.268 0.27))<br /> (52 (-9.268 0.27) (-9.268 0.131))<br /> (52 (-9.268 0.131) (-9.132 0.006))<br /> (52 (-9.132 0.006) (-8.734 0.006))<br /> (52 (9.134 0.001) (9.268 -0.133))<br /> (52 (9.268 -0.133) (9.268 -0.265))<br /> (52 (9.268 -0.265) (9.133 -0.399))<br /> (52 (9.133 -0.399) (8.866 -0.399))<br /> (52 (8.866 -0.399) (8.733 -0.265))<br /> (52 (8.733 0.265) (8.868 0.401))<br /> (52 (8.868 0.401) (9.133 0.401))<br /> (52 (9.133 0.401) (9.264 0.267))<br /> (52 (9.264 0.267) (9.264 0.133))<br /> (52 (9.264 0.133) (9.134 0.001))<br /> (52 (9.134 0.001) (8.999 0.001))<br /> (52 (-0.001 9.265) (0.134 9.401))<br /> (52 (0.134 9.401) (0.399 9.401))<br /> (52 (0.399 9.401) (0.533 9.267))<br /> (52 (0.533 9.267) (0.533 9.129))<br /> (52 (0.533 9.129) (0.401 9.001))<br /> (52 (0.401 9.001) (0.134 9.001))<br /> (52 (0.134 9.001) (-0.002 8.856))<br /> (52 (-0.002 8.856) (-0.002 8.601))<br /> (52 (-0.002 8.601) (0.535 8.601))<br /> (52 (-0.534 8.6) (-0.267 8.6))<br /> (52 (-0.533 9.267) (-0.4 9.4))<br /> (52 (-0.4 9.4) (-0.4 8.6))<br /> (2 (0.0 0.0) (0.0 0.0))<br /> (2 (-0.132 0.132) (-0.18 0.048))<br /> (2 (-0.18 0.048) (-0.18 -0.048))<br /> (2 (-0.18 -0.048) (-0.132 -0.132))<br /> (2 (-0.132 -0.132) (-0.048 -0.18))<br /> (2 (-0.048 -0.18) (0.048 -0.18))<br /> (2 (0.048 -0.18) (0.132 -0.132))<br /> (2 (0.132 -0.132) (0.18 -0.048))<br /> (2 (0.18 -0.048) (0.18 0.048))<br /> (2 (0.18 0.048) (0.132 0.132))<br /> (2 (0.132 0.132) (0.048 0.18))<br /> (2 (0.048 0.18) (-0.048 0.18))<br /> (2 (-0.048 0.18) (-0.132 0.132))<br /> (70 (1.045 -9.945) (1.024 -9.746))<br /> (1 (10.0 0.02) (9.5 0.02))<br /> (1 (10.0 -0.02) (9.5 -0.02))<br /> (1 (8.67 4.983) (8.237 4.733))<br /> (1 (8.65 5.017) (8.217 4.767))<br /> (1 (5.017 8.65) (4.767 8.217))<br /> (1 (4.983 8.67) (4.733 8.237))<br /> (1 (0.02 10.0) (0.02 9.5))<br /> (1 (-0.02 10.0) (-0.02 9.5))<br /> (1 (-4.983 8.67) (-4.733 8.237))<br /> (1 (-5.017 8.65) (-4.767 8.217))<br /> (1 (-8.65 5.017) (-8.217 4.767))<br /> (1 (-8.67 4.983) (-8.237 4.733))<br /> (1 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(-8.66 5.0) (-9.135 4.067))<br /> (4 (-9.135 4.067) (-9.511 3.09))<br /> (4 (-9.511 3.09) (-9.781 2.079))<br /> (4 (-9.781 2.079) (-9.945 1.045))<br /> (4 (-9.945 1.045) (-10.0 0.0))<br /> (4 (-10.0 0.0) (-9.945 -1.045))<br /> (4 (-9.945 -1.045) (-9.781 -2.079))<br /> (4 (-9.781 -2.079) (-9.511 -3.09))<br /> (4 (-9.511 -3.09) (-9.135 -4.067))<br /> (4 (-9.135 -4.067) (-8.66 -5.0))<br /> (4 (-8.66 -5.0) (-8.09 -5.878))<br /> (4 (-8.09 -5.878) (-7.431 -6.691))<br /> (4 (-7.431 -6.691) (-6.691 -7.431))<br /> (4 (-6.691 -7.431) (-5.878 -8.09))<br /> (4 (-5.878 -8.09) (-5.0 -8.66))<br /> (4 (-5.0 -8.66) (-4.067 -9.135))<br /> (4 (-4.067 -9.135) (-3.09 -9.511))<br /> (4 (-3.09 -9.511) (-2.079 -9.781))<br /> (4 (-2.079 -9.781) (-1.045 -9.945))<br /> (4 (-1.045 -9.945) (0.0 -10.0))<br /> (4 (0.0 -10.0) (1.045 -9.945))<br /> (4 (1.045 -9.945) (2.079 -9.781))<br /> (4 (2.079 -9.781) (3.09 -9.511))<br /> (4 (3.09 -9.511) (4.067 -9.135))<br /> (4 (4.067 -9.135) (5.0 -8.66))<br /> (4 (5.0 -8.66) 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(-0.115 -0.4))<br /> (1 (0.06 3.7) (0.2 3.7))<br /> (1 (0.2 3.7) (0.0 4.5))<br /> (1 (0.0 4.5) (-0.2 3.7))<br /> (1 (-0.2 3.7) (-0.06 3.7))<br /> (1 (0.06 3.7) (0.115 -0.4))<br /> (1 (-0.115 -0.4) (-0.06 3.7))<br /> )))<br /> ;;分针<br /> (defun ssminu()<br /> (apply 'append '(<br /> (70 (0.128 5.902) (0.078 6.172))<br /> (70 (-0.128 5.902) (-0.078 6.172))<br /> (70 (0.0 6.172) (0.0 6.552))<br /> (70 (-0.078 6.172) (0.078 6.172))<br /> (70 (-0.128 5.902) (0.128 5.902))<br /> (70 (-0.115 -0.7) (0.115 -0.7))<br /> (70 (0.115 -0.7) (0.025 5.902))<br /> (70 (-0.115 -0.7) (-0.025 5.902))<br /> )))<br /> ;;秒针<br /> (defun sssec()<br /> (apply 'append '(<br /> (115 (-0.115 -1.0) (0.115 -1.0))<br /> (115 (0.0 7.906) (0.0 8.4))<br /> (115 (-0.206 7.7) (-0.178 7.597))<br /> (115 (-0.178 7.597) (-0.103 7.522))<br /> (115 (-0.103 7.522) (0.0 7.494))<br /> (115 (0.0 7.494) (0.103 7.522))<br /> (115 (0.103 7.522) (0.178 7.597))<br /> (115 (0.178 7.597) (0.206 7.7))<br /> (115 (0.206 7.7) (0.178 7.803))<br /> (115 (0.178 7.803) (0.103 7.878))<br /> (115 (0.103 7.878) (0.0 7.906))<br /> (115 (0.0 7.906) (-0.103 7.878))<br /> (115 (-0.103 7.878) (-0.178 7.803))<br /> (115 (-0.178 7.803) (-0.206 7.7))<br /> (115 (-0.115 -1.0) (-0.025 7.501))<br /> (115 (0.115 -1.0) (0.025 7.501))<br /> )))<br /> <br /> <br /> (defun gdxf(n x)<br /> (cond ((= n 62) (cdr (assoc n x)))<br /> ((or (= n 10)(= n 11))(setq xx (cdr (assoc n x)))<br />   (list (atof (rtos (car xx) 2 3)) (atof (rtos (cadr xx) 2 3))))<br /> ))<br />

源码:

yxp

(setq continue t)
(while continue
  .......
)
如何实现按键或移动鼠标结束 while 循环？
如果用 grread 函数，会使得 while 暂停等待设备输入.
用对象反应器怎么实现.....

xiabin68

高手，，，，，，，，

阿霸jun

顶一个！！

hpy

能实现这个，佩服！

Gu_xl

可以使用这种结构来做：

1. (defun c:tt ()
   
2.   (setq loop t)
   
3.   (while loop
   
4.     (setq gr (grread t 15))
   
5.     (if (or (= 3 (car gr)) ;_ 鼠标左键结束
   
6.              (= 2 (car gr))  ;_ 按键结束
   
7.        )
   
8.       (setq loop nil)
   
9.       (progn
   
10.         (command "delay" 1000)
    
11.         (showtime)
    
12.         )
    
13.       )
    
14.     (command "zoom" "1x") ;_ 产生鼠标移动效果
    
15.     )
    
16.   (princ)
    
17.   )

(defun c:tt ()<br />   (setq loop t)<br />   (while loop<br />     (setq gr (grread t 15))<br />     (if (or (= 3 (car gr)) ;_ 鼠标左键结束<br />              (= 2 (car gr))  ;_ 按键结束<br />        )<br />       (setq loop nil)<br />       (progn<br />         (command "delay" 1000)<br />         (showtime)<br />         )<br />       )<br />     (command "zoom" "1x") ;_ 产生鼠标移动效果<br />     )<br />   (princ)<br />   )

yxp

Gu_xl 发表于 2013-7-3 09:31
可以使用这种结构来做：

感谢G版。
但是 (grread t 15) 在 while 循环中必须要移动鼠标才能返回数据，如果鼠标不动，循环将会终止处于等待状态；即使 (grread nil 15) 也不行。不知道有没有驱动鼠标产生一个微移的API，放在循环里看看效果。

我的想法是将这个 while 死循环挂在一个图元对象反应器里(比如自动保存事件)，反应器被激活后，开始运行时钟屏保。再用grread来判断键盘和鼠标的输入状态，终止反应器。
（算了，反应器的规则不能在回调函数里使用command、entget、entmod、选择集操作.... 本问题宣布CAD无解）