AutoCAD参数图形库的创建与调用

AutoCAD设计软件的应用技术之一是根据用户需求进行二次开发，结合机械工程图样设计的特点，最基本的扩充需求是建立符合国家标准的标准件和常用零件参数图形库。总结各种开发技术的应用特点和经验，以AutoCAD提供的VBA为二次开发工具，论述创建参数图形的各种方法、构造参数图形库、调用参数图形的相关技术，进而提高机械工程图样设计绘图的效率，扩大AutoCAD的功能。

Establishment and retrieve of AutoCAD parameterized graphics library

One of the applications of AutoCAD software is the secondary development according to the users?requirements. Considering the specialty of mechanical drawings, the most basic expansion requirement is to build up a parameterized graphics library of standard and commonly used parts measuring up the national standards. Based on the applications and experiences of many kinds of developing tools, with VBA component supported by AutoCAD as the secondary developing tool, this paper discusses a sort of methods to create parameterized graphics, associated technologies of building up parameterized graphics library and retrieving the parameterized graphics, with the aim of improving the efficiency of designing the mechanical drawings, expanding the AutoCAD functions.