Webgis In The Building Control System Study

With the development of computer and network technology, the Geographical Information System was impacted on, GIS is particularly the expansion of the scope of application. The urgent need of simple and inexpensive geographical information system led to the birth of WebGIS. The Web GIS is the organic wedge bonding of the GIS and the Internet, it makes the GIS expand from expert system to the square aspect noodles of the society and become a popularized information tool.Henan constructs the market turnkey system mainly by the platform,managing the important progress and relevant business enterprises and professional technical personals. GIS used in the different geographical distribution of construction management to be effective in improving management efficiency, detailed level.Based on the above background. This paper analyzed the WebGIS technology development status, and the traditional spatial database characteristics and needs, studied the storage mechanism of spatial data integration and attribute data , brings forward a data model with Objected-Oriented organization mode and discusses spatial data organization, the structure of Infrastructure Objects, O/R Mapping mode,And discussed the operation and data retrieval methods of the data, for the systems more concerned with the buildings object. Design of a Multi-scale mapping, so in general the accuracy of maps describing the details of construction work to achieve better results.