大规模三维地形的生成和漫游  

Large Scale 3D Terrain's Generation and Walkthrough

作　　者：张剑飞[1,2] 王艳涛[1] 程杰[1] 

机构地区：[1]黑龙江科技学院计算机与信息工程学院,黑龙江哈尔滨150027 [2]东北林业大学林业与木工机械工程技术中心,黑龙江哈尔滨150040

出　　处：《哈尔滨理工大学学报》2010年第2期28-30,34,共4页Journal of Harbin University of Science and Technology

基　　金：国家自然科学基金资助项目(60674807);黑龙江科技学院引进人才科研启动项目(06-19)

摘　　要：基于分块分层的地形LOD模型算法,结合视点相关因素,大幅度简化了大规模地形复杂场景,实现了研究区域三维地形可视化的实时绘制.运用多线程处理机制,提高了地形漫游的效率与可视化效果.实验结果表明,文中算法具有处理数据量大、效率高、效果好等特点.Utilizing terrain LOD modeling algorithm based on segmentlayer and incorporating the factor of view-dependent,the paper simplifies the complex scene of large-scale terrain and realize the 3D terrain visualization real-time drawing for researched area.With the aid of multithread-processing mechanism,the efficiency of terrain walkthrough and the visualization effect are enhanced.The experimental result shows that the algorithm has many features,including high-capacity of data processing,high efficiency,fine effect,etc.

关 键 词：三维地形 细节层次模型 视点相关 多线程 漫游 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]