摘要
介绍了面向对象的设计思想和对象的抽象机理在电网CAD(PWCAD)系统中的应用以及ObjectARX编程技术。通过分析电网结构的知识特点入手 ,阐述了通过利用AutoCAD核心数据库的开放结构和ObjectARX提供的基类及类的继承、派生机制定义电力系统专业对象的过程 ,以及建模系统的数据交换技术 ,并给出了电力系统中元件类的具体定义方法 ,由此建立了PWCAD的对象模型。实现了电网CAD与外部数据库之间的数据交换 ,即图形数据库的一体化。
Considering Object oriented design, abstract mechanism of object and technology of procedure design in ObjectARX are introduced.By analyzing characteristics of power network, the puper it elaborates process of definition special object by using of open structure of AutoCAD inner database , base class provided by ARX and mechanism of calss inheritance and derivative. The class definition of elemens is also given in power system as well. Technology of data exchange is also elaborated. On this base ,object models of power CAD are constructed.Date exchange between PWCAD and the external database is also realized.
出处
《重庆大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2003年第2期123-126,共4页
Journal of Chongqing University
