CAD工程数据库与应用程序之间的接口管理系统

随着IC-CAD技术的飞速发展,开发以数据库为核心的集成化CAD系统已日益受到用户青睐。由于库的物理存贮格式与各应用程序内的数据格式有差异,使得这类集成化系统有一个繁重的任务,即每个应用程序与库之间必需有一个接口程序去实现数据格式间的转换。通常,这种接口程序是在应用程序与库集成时由人工编制的。对于一个复杂的工程设计自动化系统,这部分工作量相当大。本文在分析了接口程序的一般结构和功能之后,介绍了一个工程库与应用程序间接口的自动生成开发工具。描述了该系统的结构、功能和实现。

An Interface Management System Between CAD Engineering Data Base and Application Programs

With the rapid development of IC CAD, the integrated CAD system based on data base is increasingly being appreciated by the user. Because of the disparity between the physical storage form of the base and the data format in different application programs, a tough job for the integrated system is to develop an interface program to convert data format between each application program and the data base. Usually,this interface program is. manually written when the application programs and data base are integrated. But, for a complex engineering automation system, the amount of the job is enormous. An automatic generation and development tool for the interface between the engineering base and application programs is introduced in the paper. The structure, function and implementation of the system are also described.