autoCAD lisp通过点选获得面积并求质量，可选择材料密度



无法对多线段图形求质量,需对多线段炸裂后再进行操作，尽量避免重线



图形必须闭合



支持删除内部孤岛面积



命令快捷键platekg-　　AutoCAD lisp obtained through the tap area and seeking quality, you can choose the material density　　unable to multi-line graphics for quality, the need for multi-line burst before doing so, try to avoid heavy line　　graphics must be closed　　 supported the deletion of the internal island area　　Command Shortcut platekg