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三维地形的生成技术及实现 被引量:11

Generation technique and implementation of three-dimensional terrain
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摘要 概要介绍了三维地形生成的基本技术,结合三维建模软件MultiGenCreator2.4的地形数据库模块,详细讨论了MultiGenCreator2.4中构建地形的四种算法,并以福建省福清地区水口店为研究区域,成功建立了视觉效果较好的三维地形。 Three-dimensional terrain visualization has been paid more and more attentions these years.This thesis mainly generalizes the techniques of three-dimensional terrain visualization,which include acquiring data,transforming projection,simplifying mes,illumination,applying textures to terrain and level of detail.Based on terrain module in MultiGenCreator2.4,terrain is newly generated by posts,then this thesis analyzes four conversion algorithms of three-dimensional terrain visualization in detail.In view of their advantages and disadvantages,this thesis chooses polymesh algorithm and generates a three-dimensional terrain of FuQing area with perfect visual effect.
出处 《测绘工程》 CSCD 2003年第3期10-13,共4页 Engineering of Surveying and Mapping
基金 福州大学科技发展基金项目(2002-XY-16)
关键词 三维地形 可视化 地形转换 地形构建 three-dimensional terrain visualization terrain conversion application implementation
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  • 1顾朝林,段学军,于涛方,孙毅中,陈启宁.论“数字城市”及其三维再现关键技术[J].地理研究,2002,21(1):14-24. 被引量:89
  • 2王永明.地形可视化[J].中国图象图形学报(A辑),2000,5(6):449-456. 被引量:90
  • 3Lee. Ho-Geum Kim. Kyong-Ho Lee. Kiwon. Development of 3 -dimensional GIS tuning on Internet[K]. Korea:GIS Lab/System Engineering Research Inst., 1998.
  • 4David F. Rogers. Procedural Elements For Computer Graphics[C]. Beijing: China Machine Press, 2002, 351-417.

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