三维地形可视化及其实时显示方法概论  

作　　者：张俊霞[1] 

机构地区：[1]河海大学海洋及交通工程学院,南京210098

出　　处：《电脑与信息技术》2001年第3期33-36,共4页Computer and Information Technology

摘　　要：由于三维地形可视化及其实时显示有着广阔的应用背景 ,近来越发受到人们的关注。文章给出了三维地形可视化的概念 ,描述了数字地面模型的概念和表示方法 ,重点介绍了可视化及其实时显示中数据简化方面的典型方法 :层次细节方法 ,多分辨率模型方法。并进一步对三维地形的真实性研究作了简述。最后对这一领域的前景进行了展望。Three dimensional terrain visualization and realtime display has become increasingly interesting in recent years because it has wide application backgrounds. This paper presents the concepts of three dimensional terrain visualization, then gives the concepts and descriptive techniques of digital terrain model. Among three dimensional terrain visualization and realtime display techniques, this paper plays emphasis on some typical data simplification algorithms:LOD(Level Of Details), and multiresolution model. Then this paper makes a further discussion on the research of three dimensional terrain reality. At last,the potential applications of this field are predicated.

关 键 词：三维地形可视化 数字地面模型 计算机图形学 地理信息系统 实时显示 

分 类 号：P208[天文地球—地图制图学与地理信息工程] TP391.41[天文地球—测绘科学与技术]