基于OpenGL的虚拟地表系统的实现

OpenGL是一种多平台的3维图形开发标准,是从事3维图形开发工作的必要工具,其稳定性、可靠性、可扩展性等特点赋予了其强大的生命力和应用前景.OpenGL在生物、医学、地质、大气等领域已有很多成功的应用.本文就如何利用VC＋＋结合OpenGL来开发虚拟的地表系统进行了详细地介绍,其中重点介绍了VC＋＋中OpenGL的参数设置、高程数据的获取、地形的建模,在OpenGL中模型的渲染,纹理的映射.为了使观察者有身临其境的感觉,虚拟的地表建立后,笔者还为系统添加了飞行模拟功能.

Realization of Virtual Terrain System Based on OpenGL

OpenGL is a multi-platform standard for development of three-dimensional models.It is a powerful facility for three-dimensional graphics development.Since its stability,credibility and expansibility,it was widely and successfully used in biology,physic,geology and atmosphere domain.This paper addresses the process of realize virtual terrain system by OpenGL based on Visual C++.It emphasizes the parameter setting of OpenGL in Visual C++,acquisition height data,creating terrain model,rendering model and texture mapping OpenGL.In the end the flying simulation module is added to system.