A Study Of The Application Of GIS For City

In this paper, the related technologies of development of city telecom GIS are studied, and the development prototype of some practical system is given. The engineering background of the prototype is the applied GIS system of Shuangyashan Telecom Branch, which is used to run and maintenance the base establishment of the city telecom network (CTN). Currently, the scale of CTN becomes larger, more anfractuous, so the corresponding portfolio advances rapidly. But the layout, construction, maintenance of CTN and the preservation and management of corresponding data still hold the more comparatively lagging position for many reasons up to the present. GIS system can provide the eximious query, searches, statistic and analyses functions, and it is the tools for the telecom branches to management pipe-networks and equipment, inquire operations.After establishing the prototype system of communication network of GIS, which comprises displaying of the electrical maps, the recording managing and outputting modules of communication devices of electrical maps. The advantages of communication network of GIS are the visual data sustaining to providing assistant decision for users, coexisting of words and images and visualization.The design method of communication between the Oracle database server and the client programs is also studied. For many database application programmes, the division with reason of applied system is so important. In this system, we adopted the Client/Server; in the back, the Oracle database server works, and in the front, the client programs do for the GIS main function, so this is a kind of "fat client". For the reason of the high display quality for GIS graphics, most tasks are configured to the clients.Bringing forward the blocking design thought of geographic information database, which combines the same kind of information to one database blocking; investigating method of organization and management, of the common geographic information and the telecominformation, and combining them altogether; discussing the method of data obtaining and graphics displaying in the GIS; working over the converting of AutoCAD to this system.The city telecom GIS studied in this paper has been put into execution and taken on a good effect, and has bright foreground in engineering applications.