三维地形可视化及其实时显示方法概述  

The Outline of 3D Terrain Visualization and Real-Time Display Techniques

作　　者：张俊霞[1] 

机构地区：[1]河海大学交通与海洋工程学院,南京210098

出　　处：《计算机辅助工程》2001年第2期45-49,共5页Computer Aided Engineering

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。本文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阐述。最后对这一领域的前景进行了展望。D terrain visualization and real-time display has become increasingly interesting in recent years, because it has wide application. This paper presents the concepts of three dimensional terrain visualization, then gives the concepts and descriptive techniques of digital terrain model. Different from other three dimensional terrain visualization and real-time display techniques, this paper place emphasis on some typical data simplification algorithms: LOD(Level Of Details), and multiresolution model. The n this paper conducts 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 实时显示 计算机图形学 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]