A Study Of Graphic Realization Of Geographic Information System For City Communication Network

From the view of the Conununication Network feature and status quo, it'snecessary to build up a practical City Conunwhcation Network GeographicInformation System(CCNGIS). Based on computer softwar and hardwareplatform, CCNGIS integrates graphic and literal information, realizes the mutualdata process and analysis for spatial data and attribute data, changes manual modeof the managemellt of telecom-data. CCNGIS make the managemeni of telecom-data be more scientific and auomatic.There are two importan points in realizing CCNGIS, one is to visualizespatial data and the other is to realize the management of telecom-data. Thesystem adopts the C1ient/Server mode, builds up the data structure for spatial andattribute date and connects spatial data and attribute data between each other. Tosolve the connection of spatial data and attribule data, this system has a dualarchitecture. In this paper, the author has a research on realization of the graphicfunction.The system uses the C/S structure mode, which is easy to realize. Bothterminals have its own emphasis and the software realization is much different indetail.The paper introduces the technique of graPhic fimctions in the CCNGIS,including the acquirement of spatial data and the realization of graphic fimctions.Research of the former is significan to the sharing of spatial data, and the latterexpounds severa1 fimction modules in this system.The GIS development direction is also studied in the paper, which isWebGIS. The technique is connected with Internet tighly. With the developmentof network technology CCNGIS will contact with web more tighly in the future.The CCNGIS designed in thes paPer is finished in the fOrm of prototype.Wth the optimiZation of the system fimctions and its practical use, themanagemellt level of comrnunication netWrk devices will be elevated to thedigitalized age.