城市建筑三维建模工艺方法研究学士毕业论文.doc

PAGE 1 本科毕业论文（设计） 题目： 城市建筑三维建模工艺方法研究——化石林为例 摘要 数字城市的提出给传统的地理信息系统（GIS）带来的不仅仅是许许多多的机遇，同时也可以看到很多挑战。数字城市的特点在于利用真实的地理位置信息，包括其中的各种自然情况，以及建筑物之间的布局与拓扑关系，来搭建出城市的数字化信息框架，同时在这个信息框架中嵌入人们所需要的相应信息。 随着科技的进步和人们对信息需求的增长，传统的地理信息系统基于二维数据的查询分析功能已经不能满足市场对更直观、更海量的数据的需求，三维可视化的数字城市能够更加直观、更加真实的表达与展现空间信息，特别是随着虚拟现实技术、视景仿真技术以及硬件设备等等各方面的发展，更加加速了三维数字城市和三维GIS的发展。在三维虚拟场景中，能够看到贴近事实的三维景观，并且能够通过动态交互的方式，观察和控制场景，达到与虚拟场景的交互[3]。 由于当前各行业对于构建城市三维GIS研究的高成本、长周期、大手笔且存在许多不足之处，基于GIS行业中三维领域这样的特点，本文就利用传统的软硬件来建立城市三维景观进行一些初步探讨，概述了三维GIS数据的特点及其获取方法，分析了基于3DMAX建立建筑三维模型的技术路线，并以地大东区化石林虚拟场景建立为例详细讨论了基于skyline构建仿真三维场景的实现方法，提出了建立城市三维GIS的作用、意义和发展前景。 关键字：三维，skyline，3DMAX Abstract Digital City However , with the development progress of the times and technology, geography dimensional query analysis and data processing and other information has been greatly failed to meet market and customer needs for massive data analysis , 3D visualization of digital city can provide the city with more real intuitive expression , especially with the development of virtual reality technology such as virtual modeling technology , visual simulation technology and virtual hardware devices and other technologies , and promote the development of 3D digital city and 3D GIS . In the three-dimensional virtual scene , feel the lifelike three-dimensional landscape , and can dynamically interact with , observe and control the scene , to interact with the virtual scene. Based on the characteristics of the various sectors of the current three-dimensional GIS Urban Construction cost , long cycle, generous , this article on how to build using traditional software and hardware 3D City conducted a preliminary study , an overview of the theodolite prism combination in buildings without three-dimensional coordinate data acquisition part of the practical application , analyzed the AUTOCAD and 3DMAX establishment of urban -based 3D landscape technology roadmap , and to produce a digital district, for example detailed discussion of the three-dimensional scene mo