1、 本本 科科 毕毕 业业 论论 文文 地下管线管理信息系统设计与实现地下管线管理信息系统设计与实现 Design and Implementation for the Underground Pipeline Information System 学院名称： 专业班级： 学生姓名： 指导教师姓名： 指导教师职称： 2006 年 05 月 2 Design and Implementation for the Underground Pipeline Information System Abstract Along with the urban development, underground
2、 pipeline has become the live vein of the people and the economic activities, also become the material base of urban survival and development. This paper gives a review on the development of GIS and an analysis on the characteristics of currently popular GIS platform, analysis of the system developm
3、ent pattern and the implement technology, also, determines controls and algorithms for quadratic development. Main content introduced in this paper includes: After analyzing the special demand of Pipeline Information System (PIS), based on the comparative conclusions among three different developmen
4、t modes of GIS, and two popular GIS platforms, with the characteristic of the COMGIS taken into account, a comprehensive solution based on MapObjects to construct the PIS is proposed. Based on the characteristic of the pipeline data, a plan on the encoding and a data organization model are proposed.
5、 Especially, the concept of the geometrical network and the relative network topology analysis are discussed. The accident analysis model, the algorithm to find the shortest path, the buffering analysis, the flow to implement the transect analysis are also introduced. The Dijkstra algorithm is imple
6、mented on basis of Depth-First Traversal. The analysis is given on the design of the information encoding and the spatial database. The main method used within the spatial analysis of PIS is introduced. The comprehensive solution of the constructed PIS is introduced in detail. The implemented functions include data input, data query, spatial analysis, map output, system maintain and so on. To a certain extent, the con
