校园三维地理信息系统的建模与可视化研究

发布时间：2018-04-24 15:42

本文选题：三维地理信息系统 + 数据模型　；参考：《大连理工大学》2013年硕士论文

【摘要】：随着三维地理信息系统的迅速发展,传统建立在二维平面的基础上的校园影像地图,已经不能满足学校对外招生宣传、校园导航、信息化管理的多元化功能需求。利用最新的三维建模和可视化技术,实现最先进的校园三维地理信息系统,以更形象更直观的方式逼近校园的实景,呈现校园信息是目前高校三维建设的重点及热点内容。本论文概括了校园地理信息系统的研究现状和地理信息系统的基本知识,对地理信息系统中的关键技术进行了分析研究；阐述了三维地理信息系统中空间数据类型、空间数据的获取方式、空间数据的数据模型及其相应的一些数据结构,为校园三维地理信息系统的建立打下了理论基础。文中以3D MAX为基础,对校园的建筑物及景区进行模型建立。详细论述了规则地物建模、不规则地物建模、花草植被建模、其他辅助设施模型的建模过程,成功建立相应模型,还对其进行了纹理贴图。最后详细分析了可视化的理论基础,介绍了三维模型的光照理论、几何变换原理、投影变换原理、视口变换理论,最后以OpenGL为可视化工具实现了校园三维地理信息系统的可视化漫游。
[Abstract]:With the rapid development of 3D GIS, the traditional campus image map, which is based on two-dimensional plane, can not meet the needs of the diversified functions of the school's external enrollment propaganda, campus navigation and information management. Using the latest 3D modeling and visualization technology, the most advanced 3D GIS on campus is realized, which approaches the real scene of the campus in a more visual and visual way. Presenting the campus information is the focus and hot content of the 3D construction in colleges and universities at present. This paper summarizes the current situation of campus GIS research and the basic knowledge of GIS, analyzes the key technologies of GIS, expounds the spatial data types in 3D GIS. The way of acquiring spatial data, the data model of spatial data and some corresponding data structures lay a theoretical foundation for the establishment of campus 3D GIS. Based on 3D MAX, the model of campus buildings and scenic spots is built. The modeling process of regular ground object modeling, irregular ground object modeling, flowers and vegetation modeling, other auxiliary facilities model is discussed in detail. The corresponding model is established successfully, and the texture mapping is carried out. Finally, the theory foundation of visualization is analyzed in detail, and the illumination theory, geometric transformation principle, projection transformation principle, view port transformation theory of 3D model are introduced. Finally, OpenGL is used as a visualization tool to realize the visual roaming of the three-dimensional GIS on campus.
【学位授予单位】：大连理工大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP391.41;P208

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