你用不同的面旋转出路径试试
CADghost发表于2004-7-9 11:28:00static/image/common/back.gif你用不同的面旋转出路径试试
那路径是三维的,可是你用旋转,怎么转都只能是转出一个二维曲线.
旋转旋转旋什么转呀？真是的！
先画路径，然后沿着路径拉伸就行了，
这么简单的题你都不愿意动脑筋！
楼上的不标准的
看看这个
在CAD下载里有这个LISP程序
14楼你要看清楼主的主题，
他并不是要画像你这种弹簧，
再说这种弹簧简单的很，不用加载LISP程序同样也很容易就画出来！
不信你看，这个是没有加载LISP程序直接用拉伸的，
难道也像你所说的不标准吗？？？？我看不见得！！
兄弟啊！不要随便对别人的作品下结论！
关键就是路径的画法了！
到底路径怎么画呀？？？？？？？？？？？？？？？？？？
老大们别卖关子了。快说吧。我都急死了。
对呀!说来说去也没说,
怎么画的?用什么命令?
(defun shuru () <BR> (setq zhijing (getREAL "公称直径:"))<BR> (setq luoju (getreal "螺距:"))<BR> (SETQ QUANSHU (GETREAL "螺纹有效圈数:"))<BR> (SETQ JINGDU (GETint "每转切割次数:"))<BR> (setq QIDIAN (getpoint "输入起始点:"))<BR>)<BR>(defun JISUAN () <BR> (setq H (* 0.8660254 luoju))<BR> (setq D2 (- zhijing (* 2 0.375 H)))<BR> (SETQ LD2 (* D2 PI))<BR> (SETQ LUOXUANJIAO (ATAN (/ LUOJU LD2)))<BR> (SETQ LXJ (* 180 (/ LUOXUANJIAO pi)))<BR> (setq banjiao(atan(/ luoju zhijing)))<BR> (setq djxc (sqrt(+ (expt luoju 2) (expt zhijing 2)))) <BR> (setq pyj (+ banjiao luoxuanjiao))<BR> (setq pianyi (* (sin pyj) djxc))<BR> (setq pianyi (/ pianyi 2.0000))<BR> (SETQ SL (fix (* (+ 1 QUANSHU) JINGDU ))) <BR> (SETQ FD (/ 360.0000 JINGDU)) <BR> (SETQ BC (/ (* 1.0000 LUOJU) JINGDU))<BR> (setq bc (- bc)) <BR>)<BR> (defun draw () <BR> (setq pt1 (polar QIDIAN PI (/ LUOJU 2.0000)))<BR> (SETQ PT1 (POLAR PT1 (* 1.5 PI) (+ (* 0.1250 H) (/ ZHIJING 2.0000))))<BR> (setq pt2 (polar pt1 0 (* luoju 0.375 (cos LUOXUANJIAO))))<BR> (SETQ PT2 (POLAR PT2 (* 0.5 PI) (* 0.750 H)))<BR> (setq pt3 (polar pt2 0 (* 0.25 LUOJU (cos LUOXUANJIAO))))<BR> (setq pt4 (polar pt1 0 (* LUOJU (cos LUOXUANJIAO)))) <BR> (setq pt5 (polar QIDIAN pi (* 2.00 LUOJU QUANSHU)))<BR> (setq pt7 (polar pt5 0 (* 2 LUOJU))) <BR> (setq pt7 (polar pt7 (* 1.5 pi) (/ ZHIJING 2))) <BR> (setq pt6 (polar pt5 0 LUOJU))<BR> (SETQ PT6 (POLAR PT6 (* 0.5 PI) (* 0.50000 ZHIJING))) <BR> (SETQ PT8 (POLAR PT1 0 (* 0.5 LUOJU)))<BR> (SETQ PT9 (POLAR PT8 (* 0.5 PI) (* 0.8 ZHIJING))) <BR> (SETQ MV (POLAR QIDIAN 0 (/ ZHIJING 2.0000)))<BR>;制做齿条并转角<BR> (command "pline" pt1 pt2 pt3 pt4 "c" )<BR> (command "extrude" "last" "" ZHIJING "" )<BR> (setq SS (ssget pt1)) <BR> (rotate3d ss PT9 PT8 90)<BR> (COMMAND "MOVE" "Previous" "" QIDIAN MV )<BR> (rotate3d ss "" PT8 PT9 90)<BR> (rotate3d ss "" PT9 PT8 LXJ)<BR> (SETQ YD (POLAR QIDIAN 0 (/ LUOJU 2.0000)))<BR> (COMMAND "MOVE" "Previous" "" QIDIAN YD ) <BR>;制做光杆<BR> (SETQ PT0 (POLAR QIDIAN 0 LUOJU))<BR> (COMMAND "LINE" PT5 PT0 "")<BR> (COMMAND "rectang" PT6 QIDIAN)<BR> (COMMAND "revolve" "LAST" "" PT5 qidian "")<BR> (command "zoom" "e")<BR>;布尔运算<BR> (SETQ PT (POLAR PT4 0 pianyi))<BR> (SETQ SQ pt6)<BR> (while (/= SL 0) <BR> (SETQ SS (SSGEt pt))<BR> (setq pta (polar pt 0 bc))<BR> (command "copy" ss "" pt pta)<BR>; (prin1 pt)<BR> (COMMAND "subtract" sq "" ss "") <BR>; (setq zanting(getstring))<BR> (setq SS (ssget pt6))<BR> (ROTATE3D SS PT5 qidian FD ) <BR> (setq PT pta) <BR> (SETQ SL (- SL 1))<BR> )<BR> (setq pta (polar pt 0 bc))<BR> (COMMAND "ERASE" PT "")<BR>)<BR>(defun C:3DLW ()<BR> (arxload "geom3d.ARX" NIL)<BR> (shuru)<BR> (SETQ SSs (GETVAR "OSMODE"))<BR> (SETVAR "OSMODE" 0)<BR> (SETQ SNM (GETVAR "SNAPMODE"))<BR> (SETVAR "SNAPMODE" 0)<BR> (SETQ PICKB (GETVAR "PICKBOX"))<BR> (SETVAR "PICKBOX" 0)<BR> (setq cmd (getvar "cmdecho"))<BR> (setvar "cmdecho" 0)<BR> (JISUAN)<BR> (SETQ GD (* 60 ZHIJING))<BR> (SETQ CT (POLAR QIDIAN PI (* LUOJU QUANSHU)))<BR> (COMMAND "ZOOM" "C" CT GD)<BR> (draw)<BR> (SETVAR "OSMODE" SSs)<BR> (setvar "cmdecho" cmd)<BR> (SETVAR "SNAPMODE" SNM)<BR> (SETVAR "PICKBOX" PICKB)<BR>)<BR>(princ "\n\tC: 3DLW 为绘制命令")<BR>(princ)
加载后就可以画了!