The Study Of Urban Underground Pipeline Network Management Information System

The underground pipeline is the importance part of the city infrastructure .which likes " nerve" and" blood vessel" in the human body, carrying the work of delivering the information and transporting the energy day and night. It is material foundation of the city on which existence and development relies, which called "the life line" of the city. The diagram paper, data of the underground pipeline are important foundation information of the city planning construction. Controlling and touching the pure city present condition of the underground pipeline is the city oneself demand of the economic social development. It is also the demand of preventing disaster and coping with the important trouble of abrupt. It is the need of " making people the center", " the science development view", " the construction of socialism diapason society" , which supports the city life line to circulate normally and plays an important role in the assurance of city people normal produce, life and the society development, having profound history meanings.The article sets out from the medium small city and combines the actual work, which developed "The city tube net geography information system of Texas" using VC++ basing on MapObjects component. The article analyzed the importance of this work and studied its realistic meaning. Basing on actual circumstance, from the diverse of the data most electronics maps of city have various formats currently. Among them, the data of CAD of the company of Autodesk has the very big proportion , the format of Arclnfo also has the certain proportion. How to make the various data to be shared in a system . The article expounded the data organization method and data structure to elaborate a geography information system, and discussed some concrete functions to carry out the method and the process in detail, giving the code. The end in the article concludes the theory and prospect.