轨道交通基础地理信息三维可视化研究

【作者】 江男；

【导师】 陈能；

【作者基本信息】 上海师范大学 ， 自然地理学， 2007， 硕士

【摘要】 随着地理信息系统(GIS)技术的发展,对空间数据的需求也在日益增大。为了更好地满足信息化进程的需要,人们开始由二维GIS应用转向对三维GIS的研究,而如何实现空间数据的三维可视化就成为GIS发展的一个热点。把3D GIS同轨道交通基础地理数据相结合,用GIS技术带动传统产业的发展,提高轨道管理部门的信息化水平,是论文在应用方面的一个创新之处。论文结合“城市轨道交通基础地理信息管理系统”项目,在参与项目建设的过程中,收集并分析相关的数据和文件资料,主要针对轨道交通基础地理数据的三维可视化展开相关研究工作。数据是三维表达的基础,那么空间数据的存储、管理就显得尤为重要。三维数据相对于现有二维空间数据而言,其数据量将增加l00多倍,空间数据库使大数据量的存储变成可能。根据轨道交通基础数据的特点及三维可视化的需要,论文研究轨道交通基础地理数据的分层管理、分段存储及质量控制的管理模式,并在此基础上列出了轨道交通基础地理信息空间数据及属性数据的组织及存储情况。在空间数据有效管理的基础上,在第四章论文重点研究轨道交通基础地理信息三维可视化的几个关键技术。在综合分析和比较不同三维软件平台的优缺点的基础上,论文选用ArcGIS平台,在其三维模块基础上实现城市轨道交通基础地理信息三维可视化工作。然后,论文讨论城市轨道沿线各类基础地理数据(管线数据、地层数据、建筑物及其基础数据)的三维可视化的方法,提出了比较可行的解决方案,初步实现了轨道交通基础地理数据的三维可视化。最后,论文介绍ArcObjects(AO)技术,并利用ArcObjects技术,在ArcGIS的三维应用模块平台上进行开发,实现在三维场景中的轨道沿线各种数据的属性查询。最后,对论文进行总结,指出论文的主要工作内容,并在此基础上,对下一步工作进行展望。更多还原

【Abstract】 In order to meet the growing requirement of various spatial datum and information, people start pay much attention on how to realize the visualization based on 3D GIS. This paper reveals creative way of combining the 3D GIS with the management of basic datum for Urban Metro Transit System (UMTS), trying to improve the development of traditional industry by GIS technology.Under the project of the management of basic datum for UMTS, on the basis of collecting and analyzing relevant datum and materials, the paper research the method of 3D visualization of UMTS.Data is the basis of 3D expression, which makes it important to restore and manage the spatial datum. The quantity of 3D data models is about 100times larger than the one of 2Ds.Spatial data base makes it possible to restore a large quantity of datum. According to the characteristics of the basic datum of Metro Transit and the requirement of 3D Visualization, this paper researches the models of layer management section storage,and quality control, and shows the organization and storage of UTMS’data both in spatial and attribution.Based on the effective management of spatial datum, the forth chapter of this paper mainly studies some key technologies of 3D Visualization of UTMS’basic data. After comparing the advantages and disadvantages of several different 3D soft wares, this paper finally chooses ArcObjects’3D module to display the ability of visualization, and discusses the method of 3D visualization of various basic information (pipeline data, stratum information, architectures and their basic data) alone the urban metros. At the end of this chapter, the paper introduces the ArcObjects, and uses it to develop the UMTS on the platform of ArcGIS’3D module on order to inquire the attribution of all sorts of information alone the metros in 3D scene.The final part is a conclusion that figures out the main work of this paper, and makes a expectation.更多还原