| 城市三维地质数据管理与服务系统框架研究 |
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| 引用本文： | 朱良峰,吴信才,刘修国.城市三维地质数据管理与服务系统框架研究[J].地球科学与环境学报,2004,26(1):69-75. |
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| 作者姓名： | 朱良峰 吴信才 刘修国 |
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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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| 基金项目： | 国家九五重中之重科技攻关项目(96 B02 03 05) |
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| 摘 要： | 城市地质数据的数字化管理与服务是“数字城市“工程的重要内容,3D GIS将在未来的城市数字化建设中扮演核心角色.介绍了3D GIS的发展现状及应用前景,详细讨论了基于3D GIS构建的城市地质数据管理与服务系统的设计思路和结构功能.三维数据结构的研究是3D GIS的核心问题并成为当前制约3D GIS深入发展与应用的瓶颈,由于缺乏对三维地质数据进行有效管理与可视化表达的三维数据模型,当前GIS的三维地质建模能力与三维空间分析能力都极为薄弱.在分析城市三维地质数据多种建模方法的基础上,采用一种基于TIN和TEN的混合数据结构来构建城市地质数据建模系统.针对城市三维地质数据的特点,探讨了城市三维地质海量数据的采集与管理、城市三维地质数据信息的Web发布等重要问题,力求为系统功能的最终实现提供完整的解决方案.
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| 关 键 词： | 三维地理信息系统(3D GIS) 城市地质 地质数据 信息系统 网络地理信息系统 三维地质建模 |
| 文章编号： | 1672-6561(2004)01-0069-07 |
| 修稿时间： | 2003年4月23日 |
Study on the framework of management and service system for urban 3D geological data |
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| ZHU Liang-feng,WU Xin-cai,LIU Xiu-guo.Study on the framework of management and service system for urban 3D geological data[J].Journal of Earth Sciences and Environment,2004,26(1):69-75. |
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| Authors: | ZHU Liang-feng WU Xin-cai LIU Xiu-guo |
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| Abstract: | Management and service of urban geological data is one of the most important tasks in the project of Digital City, and 3D GIS will play a key role in setting up digital cities. This paper introduces the research status and the future application about 3D GIS. The authors design a management and service system for urban geological data based on 3D GIS, and discuss the frame of system designs, structures and functions. The study of 3D data structure is the core of all the questions during the exploitation of 3D GIS. Because we have not discover an effective 3D data structure to describe 3D geological data, today's GIS has the shortage to the management and spatial analysis of 3D data, and it is almost impossible to the visualization of very complex 3D geological data. Based on the review of current 3D geology modeling related to 3D geological data, the authors give a new data structure to describe the urban data. It is a kind of hybrid data structure based on TIN and TEN, and we think it is an efficient way to solve the current problem. For the characteristics and requirement of urban geological data, the paper further discusses some key problems met in the carrying out of the system, such as the data acquisition, management of very large-scale database, the broadcast of urban geological information through Web, etc. All above present the feasible and complete way to the implementation of the system. |
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| Keywords: | 3D GIS urban geology geological data information system Web GIS 3D geology modeling |
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