【摘要】 论述AutoCAD2 0 0 0图形数据库结构 ,以及利用ObjectARX实现实体的创建、实体的访问和定制的一种方法 ,并通过具体的程序实例来说明 ,实践表明采用这些方法对图形库的建立非常有效更多还原

【Abstract】 This paper introduce the structure of the AcDbDatabase and the methods of how to create, to access and to custom the AutoCAD entities. At the same time, the relevant programme is presented. The practice shows that the mentioned methods are useful to construct the AcDbDatabase.更多还原