摘要
随着地球科学的发展,大量观探测数据不断出现,要求各种数据场在同一可视化环境中有层次、直观地显示。本文提出制作三维地球仪作为可视化显示环境,在此基础上分别介绍了基于经纬度的三角划分方法和基于单位球上的Renka三角划分两种不同建模方法,并对Renka算法作出改进,建立了地形数据与图形空间的映射关系。此模型已在VisualC++/OpenGL环境下编程实现.
With the development of the earth and space sciences, all kinds of observational data sets need to visualizing in a common environment. The article introduced two diverse methods of three-dimensional global modeling, i.e the triangle division method based on the geological coordinates and Renka triangle division method base on the unit sphere. Improvements are made on Renka algorithm, and the mapping of terrain data and graphics space. The model is programmed on Visual C++/OpenGL.
出处
《计算机辅助工程》
2004年第3期14-17,共4页
Computer Aided Engineering
