【作者】 谢波；

【导师】 岳建平；

【作者基本信息】 河海大学 ， 大地测量学与测量工程， 2006， 硕士

【摘要】 三维可视化研究是地理信息系统应用研究的重要发展方向,该研究有一个共同特点,就是对现实环境进行逼真的描述和表达。即:在计算机环境下,应用计算机图形图像学的理论和方法快速生成一系列相同或相关信息的图像以便于信息处理,从而提高对二维或三维空间关系和空间问题的理解。 本文研究了线路三维可视化模型,对实现该模型的关键技术进行了论述,探讨了三维可视化在线路施工测量中的应用,研究了一套从模型建立、系统输入、动态显示等三维可视化的实现方法。 本文研究主要内容如下: 1.根据当前数字地面模型和线路设计模型的三维可视化研究现状及发展趋势,对线路三维可视化的整体模型进行了研究,从理论上探讨了线路三维可视化的数据模型与数据结构、算法、空间分析、三维表面动态模型以及三维模型交互等内容。 2.分析了线路工程施工测量实时动态控制的原理与方法,并对线路施工测量实时动态控制的具体实现进行了研究。 3.开发了线路工程施工测量实时动态三维可视化控制系统。介绍了系统开发平台的选择、系统功能框架结构、开发的关键技术、主要功能的实现示例。更多还原

【Abstract】 Three-Dimensional visulization research is the important development direction of geographic information system.Lively description and the expression to the realistic environment is the common characteristic.Namely:Under the computer environment and by using the computer graphic image theory and method to produce a series correlative image for the information processing,thus enhances understanding to the two-dimensional or the three-dimensional space relations.This article make reserch on three-dimensional model of road and analysise to realized this model essential technology and discussed three-dimensional visualization in the road construction survey,and proposed theory of the modelling,the system input,the dynamic demonstration, the inquiry and realization method.This article studies the content to be main as follows:1.Based on the current situation and tendency of visualization,the author make research on three dimensional visualization overall model,discusse the three dimensional visualization data model and construction,the algorithm,the spatial inquiry and analysis,the three dimensional surface model.2.Studied the application of elementary theory and the method of special analysise,proposed real-time dynamic control elementary theory and the method,and make research on how to realize it.3.Developed system of realtime and dynamic control of survey in road construction.Introduced the choice of system platform,the system functional frame construction,the demonstration of main function.更多还原