Research On The Architecture Of City - Level Map And Service Interface Development

Since the concept of Digital Earth put forward, with the change of Internet technology development and people’s needs, the application of GIS technology has gradually shifted from providing software services to provide geographic information services shift to online. Numerous domestic and foreign Internet companies by providing business Internet map service, and enhance public awareness of geographic information technology, but also led to the rapid development of the geographic information industry.This paper analyzes the current status of geographic information services at home and abroad, foreign geographic information services to the United States for the lead, not only government departments to provide a wealth of basic geographic information services, commercial mapping services such as Google Maps are also leading the trend. Since the submission of the country since the construction of digital cities, all levels of government to invest in construction geospatial framework service, and formed by the national, provincial and municipal governments to build public-facing "tianditu" geographic information service platform, and on this basis By calling the interface on the establishment of various specialties applications. Then introduce "tianditu.Kunming," Design and Implementation of the overall framework needed for these technologies.Secondly, the paper studies the digital map data production methods and processes of the municipal world map. According to documents National Mapping Geographic Information Bureau established, making the corresponding level of map data, make full accordance with national standards established by Mapping and Geographic Information Bureau. Finally, the electronic map slices provide services, not only to ensure that the loading speed of map data, but also to ensure the safe use of the data.Finally, the basic geographic data through access to "tianditu.Kunming" to provide and call the relevant service interface, the development of housing security geographic information systems, demonstrating the advantages of geographic information and services "tianditu.Kunming" to offer, implement safeguards Relevance housing information and geographical information, based on the geographical information systems to achieve grid, visual management of affordable housing.