城市排水管网三维建模及可视化研究

发布时间：2018-06-10 02:39

本文选题：排水管网 + 三维建模　；参考：《云南大学》2013年硕士论文

【摘要】：城市排水管网担负着城市污水和雨水的输送、处理和排放任务,是城市基础设施的重要组成部分,被称为城市的生命线。近年来,随着城市建设速度的加快,城市范围不断扩大,排水管网数量急剧增加,排水管线的空间结构也越来越复杂。传统的基于图纸的管理方式已不能满足现代城市管理的需要。城市排水管网具有典型的空间分布特性,许多城市已将GIS技术应用于排水管网的管理中,实现了排水管网的可视化和信息化管理。但目前大部分排水管网GIS都是二维的,即通过点、线、面等二维模型来表达城市排水管网,对排水管线的空间分布缺乏三维的展示,无法表达排水管线的三维空间分布以及管线之间复杂的位置关系。借助三维可视化技术对排水管线进行三维建模及可视化,可更为直观地展示管线的三维空间分布情况及管线间的空间拓扑关系,为市政部门的排水管网规划设计、建设与维护提供直观、便捷的信息管理支持。管线三维可视化研究已经成为当前3DGIS研究的热点。本文主要研究城市排水管网的三维建模及可视化问题。论文首先分析了城市排水管网管理的现状以及存在的问题,阐述建立排水管网三维GIS的现实意义。详细介绍当前主流的三种管线三维建模及可视化技术,并对各自的优缺点进行对比分析。分析城市排水管网的特点以及数据结构,将现有二维排水管网数据转化成方便进行三维建模及可视化的三维数据。基于ArcGIS平台和SketchUp软件,建立三维排水管网模型,并通过等高线数据创建三维地形场景。最后将昆明市部分三维排水管网数据和地形数据加载到ArcScene中,实现了排水管网的三维显示、管线定位、管线属性查询、飞行等功能。本文采用ArcGIS结合SketchUp的方法,对排水管网数据进行三维建模,基于ArcScene实现了排水管网的三维展示及基本的GIS功能。
[Abstract]:Urban drainage pipe network, which is an important part of urban infrastructure, is responsible for the transportation, treatment and discharge of urban sewage and Rain Water, and is called the lifeline of the city. In recent years, with the acceleration of urban construction, the urban scope is expanding, the quantity of drainage pipe network is increasing rapidly, and the spatial structure of drainage pipeline is becoming more and more complex. The traditional management method based on drawing can no longer meet the needs of modern urban management. Urban drainage pipe network has typical spatial distribution characteristics, and many cities have applied GIS technology to the management of drainage pipe network. The visualization and information management of drainage network are realized. But at present, most of the drainage network GIS is two-dimensional, that is, through the point, line, surface and other two-dimensional model to express the urban drainage network, the spatial distribution of the drainage pipeline is lack of three-dimensional display. It is impossible to express the three-dimensional spatial distribution of the drainage pipeline and the complex position relationship between the pipelines. With the help of 3D visualization technology, the 3D modeling and visualization of drainage pipeline can show more intuitively the distribution of 3D space of pipeline and the spatial topological relationship between pipelines, which can be used for the planning and design of drainage pipe network in municipal departments. Construction and maintenance to provide intuitive, convenient information management support. The 3D visualization of pipeline has become the focus of 3D GIS. This paper mainly studies the 3D modeling and visualization of urban drainage network. Firstly, the paper analyzes the present situation and existing problems of urban drainage network management, and expounds the practical significance of establishing 3D GIS for drainage pipe network. This paper introduces three kinds of pipeline 3D modeling and visualization technology in detail, and compares their advantages and disadvantages. The characteristics and data structure of urban drainage pipe network are analyzed, and the existing 2D drainage pipe network data is transformed into 3D data which is convenient for 3D modeling and visualization. Based on ArcGIS platform and SketchUp software, the 3D drainage pipe network model is established, and the 3D terrain scene is created by contour line data. Finally, some 3D drainage pipe network data and terrain data are loaded into ArcScene to realize the functions of 3D display, pipeline location, pipeline attribute query, flight and so on. In this paper, ArcGIS combined with SketchUp is adopted. The 3D modeling of drainage network data is carried out, and the 3D display of drainage pipe network and the basic GIS function are realized based on ArcScene.
【学位授予单位】：云南大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TU992.2;TP391.41

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