求langjs做的封闭区域求面积函数的修改
lang大师这个函数里面如何把m2,和d转化成m来输入，我自己增加设置（setq m3 （/ m2 1000000））就提示函数错误，求解;;; 框选封闭区域面积到excel by:langjs
;;; ＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
(defun c:qq (/ d ent f i lst m2 obj pt ss txt x y)
(defun maketext (txt pt) ; 生成文字子函数
(entmake (list '(0 . "TEXT") (cons 62 1) (cons 10 pt) (cons 40 10) (cons 1 txt) '(41 . 0.8)))
)
(setvar "cmdecho" 0)
(vl-load-com)
(setq ss (ssget) ent (entlast))
(command ".region" ss "")
(setq ss (ssadd)lst nil)
(while (setq ent (entnext ent))
(if (= (cdr (assoc 0 (entget ent))) "REGION")
(setq obj (vlax-ename->vla-object ent) pt (vlax-safearray->list (vlax-variant-value (vla-get-centroid obj)))
m2 (rtos (vla-get-area obj) 2 2) d (rtos (vla-get-perimeter obj) 2 2) lst (cons (list pt m2 d) lst)
)
)
)
(command ".undo" "")
(setq lst (vl-sort lst (function (lambda (x y)(< (car (car x)) (car (car y)))))))
(setq lst (vl-sort lst (function (lambda (x y)(> (cadr (car x)) (cadr (car y)))))))
(setq f (getfiled "指定输出文件路径" "" "xls" 1) f (open f "w"))
(write-line "编号\t周长(mm)\t面积(mm2)" f)
(setq i 1)
(foreach x lst
(setq pt (car x) m2 (cadr x) d (caddr x))
(maketext (strcat "A" (itoa i)) (list (car pt) (+ (cadr pt) 20)))
(maketext (strcat "L=" d "mm") pt)
(maketext (strcat "S=" m2 "mm2") (list (car pt) (- (cadr pt) 14)))
(write-line (strcat (strcat "A" (itoa i)) "\t" d "\t" m2) f)
(setq i (1+ i))
)
(close f)
(princ)
)
)
本帖最后由 Gu_xl 于 2013-5-28 08:56 编辑
(while (setq ent (entnext ent))
(if (= (cdr (assoc 0 (entget ent))) "REGION")
(setq obj (vlax-ename->vla-object ent) pt (vlax-safearray->list (vlax-variant-value (vla-get-centroid obj)))
m2 (rtos (vla-get-area obj) 2 2) d (rtos (vla-get-perimeter obj) 2 2) lst (cons (list pt m2 d) lst)
)
)
)
===>
(while (setq ent (entnext ent))
(if (= (cdr (assoc 0 (entget ent))) "REGION")
(setq obj (vlax-ename->vla-object ent) pt (vlax-safearray->list (vlax-variant-value (vla-get-centroid obj)))
m2 (rtos (/ (vla-get-area obj) 1000000) 2 2)
d (rtos (/ (vla-get-perimeter obj) 1000) 2 2) lst (cons (list pt m2 d) lst)
)
)
)
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