用法:将以下代码存成*.lsp文件,在CAD中用APPLOAD命令加载,加载后使用命令:test, 此程序只适合圆柱效果,并不能实现你给的图中的圆锥效果,,,先用用看——块未打散,试用后,再提出相应建议,我再改进 - (defun ChgBlk(ent dist scale / entL ents)
- (setq ents (entget ent))
- (setq pt (cdr (assoc 10 ents)))
- (setq pt (list (- (car pt) dist) (cadr pt) (last pt)))
- (setq ents (subst (cons 10 pt) (assoc 10 ents) ents))
- (setq ents (subst (cons 41 scale) (assoc 41 ents) ents))
- (entmake ents)
- )
- (defun c:test( / ent n r i scale dist)
- (while (and (setq ent (car (entsel "\n选择要阵列的块..."))) (/= (cdr (assoc 0 (entget ent))) "INSERT"))
- (princ "\n选择的不是块!")
- )
- (setq n (getint "\n输入数量(每边除本身以外):"))
- (setq r (getdist "\n输入半径(假设圆柱的半径):"))
- (if (not (and ent n r))
- (exit)
- )
- (setq ang (/ pi 2 n))
- (setq i 1)
- (repeat n
- (setq scale (cos (* i ang)))
- (setq dist (* r (sin (* i ang))))
- (ChgBlk ent dist scale)
- (ChgBlk ent (- dist) scale)
- (setq i (1+ i))
- )
- (princ)
- )
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