基于Skyline的城市三维地理信息系统的设计与实现-大地测量学与测量工程专业论文.docxVIP

Subject : Design and Realization of City Three-dimensional Geographic Information System Based on Skyline Specialty : Geodesy and Survey Engineering Name : Luo Shuaiwei (Signature) Instructor: Meng Lumin (Signature) ABSTRACT City is the center of socio-economic, 80% of Gross Domestic Product (GDP) is concentrated in city，China put forward the initiative of rural urbanization in recent years, urbanization has become a big trend of social development , the citys position has become increasingly prominent in our society . Today the city is not only a human gathering place but an organic whole, so we have to use technology to change the city, in this case, the three-dimensional geographic information system came into being as the Means of realization of the digital cities. In recent years, the digital city is becoming the focus of attention, while the citys three-dimensional geographic information systems as an important component of the Digital City, has become the focus of the work of the surveying and mapping. I built Chaoyang New District Three-dimensional geographic information systems from the theory of the Digital City, this system can provide users with different uses of three-dimensional geographic information services, and provide urban management department with the urban development in this stage as a reference, and provide decision-making for the city planning and management department; I built Chaoyang New District geospatial database, users can query the attribute data of each unit conveniently; It also can provide users with comprehensive geographic information services, including browsing the urban landscape, various three-dimensional analysis, query the information you need. In this paper I determine the technology and methods of geographic information systems,from the perspective of building the citys three-dimensional Geographic Information System and in accordance with the principles of geographic information systems development, ba