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东西还很不完善,可为了帮助理解相关线的话题只好先拿出来看看
 - (defun c:guan (/ guanr guand huanr lineroad road
- n num roadn ptsta ptend cylimax
- cylimin
- )
- (princ "欢迎使用ago圆管输入截面拉伸版:")
- (princ "\n路径只限于直线、弧线和圆")
- (princ "\n 请输入圆管直径")
- (if (/= exguanr nil)
- (princ exguanr)
- )
- (princ ":")
- (setq guanr (getreal))
- (princ "\n 请输入壁厚")
- (if (/= exguand nil)
- (princ exguand)
- )
- (princ ":")
- (setq guand (getreal))
- (princ "\n请选择路径:")
- (setq road (ssget))
- (setq num 0)
- (if (= guanr nil)
- (setq guanr exguanr)
- (setq exguanr guanr)
- )
- (if (= guand nil)
- (setq guand exguand)
- (setq exguand guand)
- )
- (setq guanmaxr (* 0.5 guanr))
- (setq guanminr (- guanmaxr guand))
- (command "undo" "be") ; 定义返回点
- (setvar "cmdecho" 0) ; 关闭命令提示
- (setq osn (getvar "OSMODE")) ;记忆捕捉
- (setvar "OSMODE" 0)
- (command "ucs" "s" "sl" "y") ; 记忆UCS
- (command "ucs" "w")
- (setq n 0)
- (while (< n (sslength road)) ; 定义循环
- (setq roadn (ssname road n))
- (setq n (1+ n))
- (cond
- ((= (cdr (assoc '0 (entget roadn))) "LINE") ;路径为直线
- (setq lineroad roadn)
- (setq ptsta (cdr (assoc '10 (entget lineroad))))
- (setq ptend (cdr (assoc '11 (entget lineroad))))
- (command "cylinder" ptsta guanmaxr "c" ptend)
- (setq cylimax (ssget "l"))
- (command "cylinder" ptsta guanminr "c" ptend)
- (setq cylimin (ssget "l"))
- (command "subtract" cylimax "" cylimin "")
- (setq guanss (cons (ssget "l") guanss))
- (setq num (1+ num))
- )
- ((= (cdr (assoc '0 (entget roadn))) "ARC") ;路径为弧线
- (setq arcroad roadn)
- (command "ucs" "ob" arcroad)
- (command "ucs" "x" "90")
- (setq pt (list (cdr (assoc '40 (entget arcroad))) 0 0))
- (command "circle" pt guanmaxr)
- (command "extrude" (ssget "l") "" "p" arcroad)
- (setq cylimax (ssget "l"))
- (command "circle" pt guanminr)
- (command "extrude" (ssget "l") "" "p" arcroad)
- (setq cylimin (ssget "l"))
- (command "subtract" cylimax "" cylimin "")
- (setq guanss (cons (ssget "l") guanss))
- (setq num (1+ num))
- )
- ((= (cdr (assoc '0 (entget roadn))) "CIRCLE") ;路径为圆
- (setq cirroad roadn)
- (command "ucs" "ob" cirroad)
- (setq huanr (cdr (assoc '40 (entget cirroad))))
- (command "torus" "0,0,0" huanr guanmaxr)
- (setq cylimax (ssget "l"))
- (command "torus" "0,0,0" huanr guanminr)
- (setq cylimin (ssget "l"))
- (command "subtract" cylimax "" cylimin "")
- (setq guanss (cons (ssget "l") guanss))
- (setq num (1+ num))
- )
- )
- )
- (command "ucs" "r" "sl") ; 返回UCS
- (command "undo" "e") ; 定义返点
- (setvar "cmdecho" 1) ; 打开命令提示
- (setvar "OSMODE" osn) ;恢复捕捉
- (princ "总共绘制")
- (princ num)
- (princ "根")
- (princ exguanr)
- (princ "*")
- (princ exguand)
- (princ "的圆管")
- (princ)
- )
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