本帖最后由 作者 于 2007-10-27 20:09:55 编辑
我们在CAD制图时,经常会遇到这种情况:希望只改变尺寸,就能使所画的图形的外形发生相应的变化!下面这个LSP是BDYCAD所写的!加载以后,好像只能修改用DLI命令标注的图形(图形好像还要闭合)!对于用DOR命令标注的尺寸就无能为力了!这个LSP程序BDYCAD经过心血编写!在公布有所保留!(我想别人经过心血所得东西,是不可能免费公开的!我们能理解)现在我把他公布的部分贴出来!看看大家有没有办法像PRO/E中那样只需修改尺寸,图形的外形就会随尺寸变化! 具体操作的链接地址:http://www.mjtd.com/Codes/ArticleShow.asp?ArticleID=1020 ;;;编写: BDYCAD ;;;时间: 2005-03-18 ;;;开发用时 26分钟 ;;;功能: 尺寸驱动 (defun c:tt(/ BLB EP ESPL N-EP N-SP NEW-T SD SD-DXF SEA SEB SP SS1 SS2 SS3) (setq SD (entsel "\n选择驱动尺寸:")) (if SD (PROGN (SETQ SD-DXF (ENTGET (CAR SD))) (WHILE (NOT (wcmatch (CDR (ASSOC 0 SD-DXF)) "*DIM*")) (setq SD (entsel "\n选择驱动尺寸:")) (SETQ SD-DXF (ENTGET (CAR SD)))) (SETQ SP (CDR (ASSOC 13 SD-DXF)) EP (CDR (ASSOC 14 SD-DXF)) ESPL (DISTANCE SP EP) SEA (ANGLE SP EP) SEB (ANGLE EP SP) NEW-T (getdist "\n新的长度:")) (while (eq nil NEW-T) (setq NEW-T (getdist "\n新的长度:"))) (if NEW-T (progn (setq BLB (* 0.5 (abs (- NEW-T ESPL)))) (if (> ESPL NEW-T ) (setq N-SP (POLAR SP SEA BLB) N-EP (POLAR EP (+ PI SEA) BLB)) (setq N-SP (POLAR SP SEB BLB) N-EP (POLAR EP (+ PI SEB) BLB)) ) (setvar "osmode" (logior (getvar "osmode") 16384)) (setvar "cmdecho" 0) (vl-cmdf "_.undo" "_group") (SETQ SS1 (SSGET "C" (POLAR SP (+ PI (* 0.25 PI)) 0.4)(POLAR SP (* 0.25 PI) 0.4)) SS2 (SSGET "C" (POLAR EP (+ PI (* 0.25 PI)) 0.4)(POLAR EP (* 0.25 PI) 0.4)) ) (IF SS1 (COMMAND "STRETCH" (SSGET "C" (POLAR SP (+ PI (* 0.25 PI)) 0.4)(POLAR SP (* 0.25 PI) 0.4)) ""SP N-SP)) (IF SS3 (COMMAND "STRETCH" (SSGET "C" (POLAR EP (+ PI (* 0.25 PI)) 0.4)(POLAR EP (* 0.25 PI) 0.4)) ""EP N-EP)) (vl-cmdf "_.undo" "_end") (setvar "osmode" (logand (getvar "osmode") 49151)) (PRINC"\n编写:BDYCAD\n尺寸驱动程序运行完毕, 欢迎使用.谢谢!"))) ) ) (princ) ) |