尺寸驱动tt

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5 n- d- v& N6 f& m% R尺寸驱动tt;;;编写: BDYCAD
& v; o& B! `0 C' |/ C" q;;;时间: 2005-03-18
8 L$ G; K, M/ m# |; P/ d;;;开发用时  26分钟
3 d$ f0 ^9 r" f% o  {;;;功能: 尺寸驱动
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1. (defun c:tt(/ BLB EP ESPL N-EP N-SP NEW-T SD SD-DXF SEA SEB SP SS1 SS2 SS3)
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2.   (setq SD (entsel "\n选择驱动尺寸:"))
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3.   (if SD
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4.     (PROGN
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5.       (SETQ SD-DXF (ENTGET (CAR SD)))
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6.       (WHILE (NOT (wcmatch (CDR (ASSOC 0 SD-DXF)) "*DIM*"))
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7. (setq SD (entsel "\n选择驱动尺寸:"))
   
8. (SETQ SD-DXF (ENTGET (CAR SD))))
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9.       (SETQ SP (CDR (ASSOC 13 SD-DXF))
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10.      EP (CDR (ASSOC 14 SD-DXF))
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11.      ESPL (DISTANCE SP EP)
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12.      SEA (ANGLE SP EP)
    
13.      SEB (ANGLE EP SP)
    
14.      NEW-T (getdist "\n新的长度:"))
    
15.       (while (eq nil NEW-T)
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16. (setq  NEW-T (getdist "\n新的长度:")))
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17.       (if NEW-T
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18. (progn
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19.       (setq BLB (* 0.5 (abs (-  NEW-T ESPL))))
    
20.       (if (> ESPL NEW-T )
    
21. (setq N-SP (POLAR SP SEA BLB)
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22.        N-EP (POLAR EP (+ PI SEA) BLB))
    
23. (setq N-SP (POLAR SP SEB BLB)
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24.        N-EP (POLAR EP (+ PI SEB) BLB))
    
25. )
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26.       (setvar "osmode" (logior (getvar "osmode") 16384))
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27.       (setvar "cmdecho" 0)
    
28.       (vl-cmdf "_.undo" "_group")
    
29.       (SETQ SS1 (SSGET "C" (POLAR SP (+ PI (* 0.25 PI)) 0.4)(POLAR SP (* 0.25 PI) 0.4))
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30.      SS2 (SSGET "C" (POLAR EP (+ PI (* 0.25 PI)) 0.4)(POLAR EP (* 0.25 PI) 0.4))
    
31.      )
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32.       (IF SS1
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33. (COMMAND "STRETCH" (SSGET "C" (POLAR SP (+ PI (* 0.25 PI)) 0.4)(POLAR SP (* 0.25 PI) 0.4))
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34.    ""SP N-SP))
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35.       (IF SS3
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36. (COMMAND "STRETCH" (SSGET "C" (POLAR EP (+ PI (* 0.25 PI)) 0.4)(POLAR EP (* 0.25 PI) 0.4))
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37.    ""EP N-EP))
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38.       (vl-cmdf "_.undo" "_end")
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39.       (setvar "osmode" (logand (getvar "osmode") 49151))
    
40.       (PRINC"\n编写:BDYCAD\n尺寸驱动程序运行完毕, 欢迎使用.谢谢!")))
    
41.       )
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42.     )
    
43.   (princ)
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44.   )

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yourspace

我试了,可以驱动,很不错,但就是100的长度改成120时,结果尺寸值并非120,不知为什么,请楼主明示