三维河床地形可视化浏览系统研究与实现

Research and Implementation of Visualization Browse System on 3D Riverbed Terrain

主要讨论了如何利用改进的离散数据网格化方法快速实现离散地形数据预处理。详细介绍了在综合运用改进的离散数据网格化算法、三维地形建模、真实感图形绘制、三维坐标查询以及人机交互等三维可视化相关技术的基础上,利用OpenGL基本函数编程技术开发三维河床地形可视化实时浏览系统的具体过程。通过三维河床地形可视化浏览系统,可以直观、真实地表达河床地形的三维信息及综合特征,为河床演变分析提供了一个科学有效、简便直观的可视化分析途径。

This thesis mainly discussed how to make use of the improved arithmetic of discrete data gridding to quickly realize discrete data pretreatment. It detailedly introduced the entire exploitation process of the three - dimensional riverbed terrain visualization real - time browse system using OpenGL based on the related techniques of three - dimensional visualization including the improved arithmetic of discrete data gridding, three - dimensional terrain modeling techniques, the implementation theory of the third dimension graphics, the query techniques of three - dimensional coordinates and the interaction between person and computer. The three - dimensional riverbed terrain visualization real - time browse system can reveal the information and synthetical character of 3D riverbed terrain directly, providing a scientific ,valid, easy and direct way for riverbed evolvement analysis.