Rendering Vector Data over Global, Multiresolution 3D Terrain
Rendering Vector Data over Global, Multiresolution 3D Terrain
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DOI：
10.2312/vissym/vissym03/213-222
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发表时间：
2003-05
期刊：
影响因子：
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通讯作者：
Z. Wartell;Eunjung Kang;Tony Wasilewski;W. Ribarsky;N. Faust
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文献类型：
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作者：
Z. Wartell;Eunjung Kang;Tony Wasilewski;W. Ribarsky;N. Faust
现代桌面PC能够将2D地理信息系统（GIS）应用程序带入交互式3D虚拟世界的领域。在以前的工作中，我们开发并提出了图形算法和数据管理方法，用于桌面和虚拟现实系统的3D全球地形系统的交互式查看。本文提出了一种多分辨率三维地形与传统GIS矢量数据联合显示的关键数据结构和相应的渲染算法。这种矢量数据传统上用于表示地理实体，如政治边界、道路、河流和地籍信息。
Modern desktop PCs are capable of taking 2D Geographic Information System (GIS) applications into the realm of interactive 3D virtual worlds. In prior work we developed and presented graphics algorithms and data management methods for interactive viewing of a 3D global terrain system for desktop and virtual reality systems. In this paper we present a key data structure and associated render-time algorithm for the combined display of multi-resolution 3D terrain and traditional GIS polyline vector data. Such vector data is traditionally used for representing geographic entities such as political borders, roads, rivers and cadastral information.