摘要
改进可重用性三维(3D ) 当模特儿并且简化自然景色重建的复杂性，这份报纸为通用 3D GIS 论述一个 3D 模型数据库。在它的可扩展的功能建筑学的介绍以后，在 3D GIS 的任何重建的景色由模型的含蓄的空间时间的层次的结论伴随了为通用，几个关键问题详细被讨论例如 3D 模型和相关检索和负担方法的存储和管理，象为进一步按需的开发的接口一样。最后，这个模型数据库的有效性和可行性在铁路操作的 3D 可视化系统的开发通过它的应用程序被证明。
To improve the reusability of three-dimensional （3D） models and simplify the complexity of natural scene reconstruction, this paper presents a 3D model database for universal 3D GIS. After the introduction of its extensible function architecture, accompanied by the conclusion of implicit spatial-temporal hierarchy of models in any reconstructed scene of 3D GIS for general purpose, several key issues are discussed in detail, such as the storage and management of 3D models and related retrieval and load method, as well as the interfaces for further on-demand development. Finally, the validity and feasibility of this model database are proved through its application in the development of 3D visualization system of railway operation.
基金
Supported by the National Natural Science Foundation of China (No.40871212, No.40671158)
the National High Technology Research and Development Program of China (No.2008AA121600)
