摘要
与陆地地形建模相比,水下地形的多分辨率建模是一个逆向的过程,它通过较为少量但非常有价值的数据来建立水下地形的拓扑结构。本文提出了一种对地形原始三角边的参数曲线描述方法,在此基础上根据对原始三角形的兴趣值通过分形的方法进行细化,研究实现了不同细化程度的相邻三角形公共边上的无缝连接,并开发实现了基于OpenGL的水下地形可视化应用系统。
Compared with modeling on ground terrain, modeling on underwater terrain is a converse process. It takes a few but valuable data to establish topological structure. This paper introduces a method to describe the edge of original triangle with parametrical curve, and then fractionize the original triangle by fractal according to its interested value. Through research the gapless link of two original triangles is achieved which share same edge and have different interested values. An underwater terrain visualization system based on OpenGL is also achieved.
出处
《系统仿真学报》
CAS
CSCD
2003年第3期326-328,共3页
Journal of System Simulation
关键词
MRM
水下地形
参数曲线
可视化
MRM(Multi-Resolution Modeling)
underwater terrain
parametrical curve
visualization
