摘要
介绍了地理图形信息系统设计编程的思路与方法。重点阐述了地理图形信息系统中图形文件结构的设计、实体目录链表的建立方法及其作用、屏幕上选择图形的区域选图算法及其实现等图形系统设计时的一些关键技术。
A basic idea and methodology for designing and programming the geographic information system. It stresses on some key technology of graphic systems design, such as the design of graphic file's construction, the creation method and function of entity index chains, the algorithm and realization of regional graph selection on the screen.
出处
《现代电力》
1994年第4期56-61,共6页
Modern Electric Power
基金
铁道部基金
关键词
地理图形信息系统
区域选图
图形汉化
实体
geographic information systems, regional graph selection, Chinese-realization of graph, entity
