基于ArcGIS Engine的数字城市系统平台搭建研究

发布时间：2018-07-21 13:59

【摘要】：随着数字城市的发展，数字城市系统在许多方面都面临严峻的挑战。例如如何协调解决信息孤岛问题，大范围三维场景浏览显示问题，服务范围不均衡问题，重复开发问题，服务资源相对匮乏问题等。本文在分析数字城市面临的诸多问题的基础上，试图找出一条能够解决上述问题的途径。首先，对数字城市的相关概念、数字城市的发展和数字城市开发平台等研究背景进行了阐述，并对数字城市系统的功能、网络结构等进行了设计；其次，对数字城市系统涉及到的缓存机制、内存机制、Peer to Peer网络模型和OpenAPI等关键技术进行了研究；然后，基于ArcGIS Engine在.Net环境下对设计的数字城市系统平台予以实现；最后，对研究内容进行了总结，并指出数字城市系统有待进行研究的技术。论文研究的主要内容有：1.数字城市基础地理信息空间数据和三维模型数据的磁盘缓存的创建以及三维数据缓存的内存管理。2.数字城市系统的网络拓扑结构的设计与实现3.磁盘缓存的传输与共享。4.数字城市系统平台的功能、用户界面和交互方式的设计与实现。5.数字城市系统的地理信息资源与互联网资源的结合。论文的创新之处在于提出在三维数字城市系统平台上根据数据类型分别同时使用C/S结构（客户端—服务器结构）和混合式P2P结构（混合式对等网络结构）来有效管理数据流并同时均衡网络载荷；侧重对数字系统的用户界面及交互方式的设计并结合第三方组件库进行系统平台的美化，，增强用户友好度；设计磁盘缓存的传输与共享并在对等网络结构的基础上通过.NET的远程通道技术并结合数据压缩开源库予以实现；采用以Open API为代表的互联网资源与数字城市地理信息资源的结合有效解决数字城市系统在服务方面资源相对匮乏问题。论文设计并实现的数字城市系统平台经过测试初步解决了当前数字城市系统应用所面临的问题，同时也存在许多不足，将在今后的研究中进一步完善。
[Abstract]:With the development of digital city, digital city system is facing severe challenges in many aspects. For example, how to coordinate and solve the problem of information island, the problem of large scale 3D scene browsing and displaying, the problem of service scope imbalance, the problem of repeated development, the problem of relative scarcity of service resources, and so on. Based on the analysis of many problems faced by digital city, this paper tries to find a way to solve these problems. Firstly, the related concepts of digital city, the development of digital city and the research background of digital city development platform are expounded, and the function and network structure of digital city system are designed. The cache mechanism, memory mechanism, Peer to Peer network model and OpenAPI are studied. Then, the digital city system platform based on ArcGIS engine is implemented in .Net environment. This paper summarizes the research content and points out the technology to be studied in digital city system. The main content of the thesis is: 1. The creation of disk cache for digital city basic geographic information spatial data and 3D model data and the memory management of 3D data cache. The design and implementation of the network topology of digital city system. Disk cache transfer and sharing. 4. 4. Design and implementation of function, user interface and interactive mode of digital city system platform. 5. The combination of geographic information resources and Internet resources in digital city system. The innovation of this paper is that the C / S structure (client-server structure) and hybrid P2P structure (hybrid peer-to-peer network structure) are used simultaneously according to the data type on the 3D digital city system platform. Managing data flow and balancing network load at the same time; It emphasizes on the design of user interface and interaction mode of digital system and beautifies the system platform with the combination of third-party component library to enhance the user friendliness. The transmission and sharing of disk cache is designed and implemented through .NET remote channel technology and data compression open source library on the basis of peer-to-peer network structure. The combination of Internet resources represented by Open API and geographic information resources of digital city is used to solve the problem of relative shortage of service resources in digital city system. The digital city system platform designed and implemented in this paper has solved the problems in the application of the digital city system after testing, and at the same time, there are many shortcomings, which will be further improved in the future research.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：P208

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