| 基于LOD的三维地形数据的组织与实时绘制 |
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| 引用本文： | 王强.基于LOD的三维地形数据的组织与实时绘制[J].教育技术导刊,2008,7(4):44-46. |
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| 作者姓名： | 王强 |
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| 作者单位： | 中国地质大学信息工程学院 湖北武汉430074 |
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| 摘 要： | LOD(Levels of Details,细节层次)是解决大规模地形实时渲染的一项关键技术。将LOD应用于三维数字地球中,针对LOD在实时地形绘制、纹理与高程数据映射等方面进行了分析,在采用数据分块、动态LOD技术、动态纹理等技术的基础上实现了海量数据的快速漫游,得到实时显示效果。
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| 关 键 词： | LOD 地形 实时显示 四叉树 |
Study of Real-Time Rendering for 3D Virtual Earth terrain Based on the LOD Algorithm |
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| Wang Qiang.Study of Real-Time Rendering for 3D Virtual Earth terrain Based on the LOD Algorithm[J].Introduction of Educational Technology,2008,7(4):44-46. |
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| Authors: | Wang Qiang |
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| Abstract: | LOD is one of solutions to the real-time visualization of large-scale terrain.In this paper,we applied LOD into Web 3D Digital Earth which developed by the Java Applet technology,analysis of the real-time terrain rendering,texture mapping and elevation data,achieved a rapid roaming of massive terrain data based on the technology of data block,dynamic LOD and texture,achieved better real-time display. |
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| Keywords: | LOD Terrain Real-Time Display Quadtree |
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