基于OpenGL的三维地形的生成与简化  

Implementation and simplification of three-dimensional terrain based on OpenGL

作　　者：范乃梅[1] 熊坤[1] 

机构地区：[1]郑州轻工业学院计算机与通信工程学院,河南郑州450002

出　　处：《郑州轻工业学院学报（自然科学版）》2006年第3期84-87,共4页Journal of Zhengzhou University of Light Industry:Natural Science

摘　　要：在Visual C++环境下,以通用标准三维图形函数库OpenGL为工具,通过在位图的灰度值与地形高程之间建立映射关系,快速生成了三维网格地形.为减少高程数据生成地形的巨大数据量,应用LOD技术对生成的网格地形进行简化.An approach to rapidly build a three-dimentional terrain based on bitmap was presented. The method is to create a correspondence between the gray value of bitmap and the height of terrain. It is realized by pro- gramming with Visual C ＋ ＋ and OpenGL. In order to reduce the giant datum of three-dimensional terrain, LOD（level of detail） technique was used to simplify the gridding terrain.

关 键 词：三维地形 三维图形 地形建模 地形模型 OPENGL 灰度等级 三维地形模拟 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论]