| GKS在国家水质管理信息系统中的应用 |
| 摘要点击 809 全文点击 901 修订日期：1993-08-20 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 水质管理 信息系统 图形核心系统 图形管理系统 |
| 英文关键词 water quality managementg graphics kernal system National Water Quality Management Information System |
|
| 中文摘要 |
| 图形核心系统(GKS)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了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(NWQMIS)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。 |
| 英文摘要 |
| GKS(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. |
|
|
|
