GKS在国家水质管理信息系统中的应用

图形核心系统是开发图形应用软件的一组核心功能描述，它独立于设备和各种高级语言，自８０年代中期被ＩＳＯ正式批准为第一个计算机图形学国际标准以来，世界上各大计算机厂商纷纷推出ＧＫＳ不同级别的实现版本，广大用户也不断将自己的图形应用开发平台转向ＧＫＳ。本研究结合国家水质管理信息系统的需求，以ＧＫＳ为起点，完成了ＮＷＱＭＩＳ图形管理系统的设计与实施，有效地支持了其应用功能的实现。

Application of GKS in National Water Quality Management Information System

KS(Graphics Kernel System),the first ISO international standard for computer graphics,was used to construct a graphic application system with a higher efficiency of development and a stronger implantability of programs.This paper also deals briefly with the position of GKS in various applieations, major functions and the principles of developing such a graphic system. The reasonable functions of graphics were arranged to closely meet the requirements of the national information system on water quality management. The software structures of the graphic system,and the schemes of designing a general graphics and a geographic graphics, were also described along with a general evaluation on the effeCtiveness of GKS application in developing graphic systems.