A Tetrahedronized Irregular Network Based DBMS Approach for 3D Topographic Data Modeling
A Tetrahedronized Irregular Network Based DBMS Approach for 3D Topographic Data Modeling
复制标题
DOI：
10.1007/3-540-35589-8_37
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
Friso Penninga;P. V. Oosterom;B. Kazar
中科院分区：
文献类型：
--
作者：
Friso Penninga;P. V. Oosterom;B. Kazar
地形特征，如物理对象变得更加复杂，由于增加多种土地使用。人们对可持续（城市）发展重要性的认识不断提高，这就需要进行3D规划和分析。因此，地形产品需要扩展到第三维。在本文中，我们开发了一个新的拓扑三维数据模型，依赖于庞加莱代数。内部结构基于简单形网络，这些简单形定义明确，非常适合保持3D数据集一致。更复杂的3D特征基于这种简单的结构，并在需要时进行计算。我们描述了一个商业数据库管理系统上的实现这个3D模型。我们还展示了如何扩展2D可视化工具来可视化这些3D对象。
Topographic features such as physical objects become more complex due to increasing multiple land use. Increasing awareness of the importance of sustainable (urban) development leads to the need for 3D planning and analysis. As a result, topographic products need to be extended into the third dimension. In this paper, we developed a new topological 3D data model that relies on Poincaré algebra. The internal structure is based on a network of simplexes, which are well defined, and very suitable for keeping the 3D data set consistent. More complex 3D features are based on this simple structure and computed when needed. We describe an implementation of this 3D model on a commercial DBMS. We also show how a 2D visualizer can be extended to visualize these 3D objects.