【作者】 徐志扬；

【导师】 丁贤荣；

【作者基本信息】 河海大学 ， 水文学及水资源， 2006， 硕士

【摘要】 本文研究应用ArcGIS技术解决河床演变分析问题的方法,构建基于ArcGIS平台的河床演变分析系统。 以河床演变分析基本方法为基础,从剖析ArcGIS空间分析技术入手,较系统地研究了该平台下的河床演变分析方法。主要包括:DEM、TIN空间插值分析解决河道断面分析与河道特征地形提取;DEM空间叠加分析与空间量算解决河道冲淤分析;TIN坡度分析解决河道边坡风险分析。 紧密结合ArcGIS Engine技术与河床演变分析方法,研究了河床演变分析系统的设计与集成。主要包括:河道地形数据管理、河道地形可视化表达及河床演变分析各功能模块的设计。重点研究了ArcGIS Engine三维功能下的河道地形三维显示与渲染,复杂河道工程对象的三维建模。针对ArcGIS Engine结构特点,研究了系统开发过程中ArcGIS Engine功能的封装,提升系统开发效率。 从研究结果来看,ArcGIS技术与河床演变分析有较好的结合点,能较系统地解决河床演变分析多方面问题,具有较好的应用前景。采用ArcGIS Engine底层接口开发河床演变分析系统,技术上具有一定的先进性,并且在分析上具有很大的灵活性,能最大程度地满足专业需求。ArcGIS Engine提供的功能在河床演变分析中有着更加广泛应用的潜力。更多还原

【Abstract】 The paper tries to find a better method to solve the problem of analyzing riverbed evolution using geographic information system, and builds a riverbed evolution analysis system based on ArcGIS.Based on basic methord of riverbed evolution analysis and started with analyzing ArcGIS technology in spatial analysis, the paper systemically researches the method of riverbed evolution analysis.It includes: DEMYTIN spatial difference analysis solving the problem of river section analysis and characteristic terrain extract, DEM spatial analysis solving the problem of riverbed scour-silting, TIN slope analysis solving the problem of river slope risk analysis.Closely combined the methord of riverbed evolution analysis with the ArcGIS Engine technology, the paper researches the design and integration of riverbed evolution analysis system. It includes: the management of river channel terrain data, the visualized expression of river channel terrain and models of riverbed evolution analysis. Especially it researches 3D expression and render of river channel terrain, 3D modeling of complex river project substance using the 3D technology of ArcGIS Engine. Based on the characteristic of ArcGIS Engine framework, the paper also researches encapsulation of ArcGIS Engine function in the progress of system development to improve the efficiency.The results show that ArcGIS technology shares a well-knit point with riverbed evolution analysis. It has bright future in application to analyze riverbed evolution using geographic information system because it can solve many problems in the analysis of riverbed evolution systemically. And to explore th e system of riverbed evolution by ArcGIS Engine interfaces has outstanding advantages. It not only possesses advanced technology but also solves the problems flexibly which can satisfy to professional needs to a great extent. And ArcGIS Engine has more wide application potential in riverbed evolution analysis because of its powerful function.更多还原