几个有用CAD小程序.docx

1.计算所有线段总长度(加载后只需框选所有线段便可得出这些线段的总长度)(defun c:LL ()(setvar cmdecho 1)(setq en (ssget (list (0 . spline,arc,line,ellipse,LWPOLYLINE))))(setqi 0)(setqll 0)(repeat (sslength en)? (setqss (ssname en i))? (setqendata (entgetss))? (command lengthen ss )? (setqdd (getvar perimeter))(setqll (+ ddll))? (setqi (1+ i)))? (princ 所选线条总长为：)(princll)(princ))2.标注所有线段(加载后只需框选所有线段便可得标注这些线段)(defun c:LLL ()(COMMAND UCS )(setvar cmdecho 1)(SETVAR OSMODE 0)(setq ? ?AcadObject ? (vlax-get-acad-object)? ?AcadDocument (vla-get-ActiveDocumentAcadobject)? ?mSpace ? ? ? (vla-get-ModelSpaceAcaddocument));;选取需要测量的样条曲线、圆弧、直线、椭圆(setq en (ssget (list (0 . spline,arc,line,ellipse,LWPOLYLINE))))(setqi 0);;获取系统参数textsize(setqshh (getvar textsize))(setqstr_hh (strcat \n文字高度 (rtosshh 2) : ))(setqhh (getdiststr_hh))(while hh(setvar textsize hh)(setqhh nil));;输入标注文字高度;;循环开始(repeat (sslength en)? (setqss (ssname en i))? (setqendata (entgetss))? (command lengthen ss )? (setqdd (getvar perimeter))? (princ (strcat \n长度= (rtosdd 2)))? ;;寻找代表图层的字符串? (setqaa (assoc 0 endata))? ;;获取图层名称? (setq aa1 (cdraa))? ;;判断线条种类? (cond? ? ((= aa1 SPLINE)? ? ;;如果是spline? ? (progn? ? (setqarcObj (VLAX-ENAME-VLA-OBJECT ss))? ? (setq startPnt1 (vla-get-ControlPointsarcObj))? ? (setq p1? ? ? ?(vlax-safearray-list (vlax-variant-value startPnt1))? ? )? ? (setq x1 (car p1))? ? (setq y1 (cadr p1))? ? (setq z1 (caddr p1))? ? (setq pp1 (list x1 y1 z1))? ? (repeat (- (/ (length p1) 3) 1)? ? ? ;;循环，寻找最后一个控制点? ? ? (setq p1 (cdddr p1))? ? ? (setq x2 (car p1))? ? ? (setq y2 (cadr p1))? ? ? (setq z2 (caddr p1))? ? )? ? (setq pp2 (list x2 y2 z2))? ? )? ? )? ? ((= aa1 LWPOLYLINE)? ? ;;如果是LWPOLYLINE? ? (progn? ? (setqarcObj (VLAX-ENAME-VLA-OBJECT ss))? (setq startPnt1 (vla-get-Coordinates arcObj))? (setq p1? ? ? (vlax-safearray-list (vlax-variant-value startPnt1))? )? ? (setq x1 (car p1))? ? (setq y1 (cadr p1))? ? (setq z1 (caddr p1))? ? (setq pp1 (list x1 y1 z1))? ? (repeat (- (/ (length p1) 3) 1)? ? ? ;;循环，寻找最后一个控制点? ? ? (setq p1 (cdddr p1))? ?