基于3DMAX城市三维建模与精度的研究

发布时间：2018-01-15 01:21

本文关键词：基于3DMAX城市三维建模与精度的研究　出处：《兰州交通大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着“数字城市”的概念及理论被提出,创建数字三维城市场景已成为研究的热点内容。应用三维虚拟现实技术进行三维数字城市建设,不仅可以在平面上和纵向上表达空间对象,而且可以进行三维空间分析和操作,对地理空间现象的立体显示,给人以真实的感觉。三维建模是数字城市建设中非常核心的一部分内容,有了三维立体模型,我们可以高速、快捷的进行各种决策,商品需求量决定市场的发展,三维数字城市的需求将不断增加。本文具体的研究工作:(1)系统的对AutoCAD结合3DMax建模方法、SketchUP的三维建模方法及SkyIine建模方法进行分析,综合考虑各自建模的优缺点,选用AutoCAD结合3DMax建模方法完成建模工作。(2)三维建模是数字化城市建设中非常重要的一部分内容,为此本文从CAD底图精度,到纹理制作及粘贴精度,到建筑物三维模型高度的精度及地形高度精准性,通过实际采集的数据及相关案例进行了严密的分析,并探讨建模过程中各项工作所应该达到的精度要求。(3)以二维地图自动综合为基础,探讨三维空间数据建模的精细化程度,应用于三维建模。(4)通过使用AutoCAD结合3DMax建模软件构建城市建筑物的三维模型,研究三维建模方法的可行度,并验证精度和精细化程度的分析的切实可行度。城市三维景观的建立,使用户能够在虚拟的环境中,真实、全面的体验各种场景,实时、动态的查询相关信息,并进行资源的共享及交流。通过对数字化城市的管理、建设,方便各个部门对城市的整体规划建设、交通线路运营管理、安全问题的决策,一定程度上提高了城市空间信息的相互分享和共用。
[Abstract]:With the concept and theory of "digital city" being put forward, the creation of digital three-dimensional city scene has become a hot topic of research. The three-dimensional virtual reality technology is applied to the construction of three-dimensional digital city. Not only can the spatial objects be expressed in the plane and longitudinally, but also the three-dimensional spatial analysis and operation can be carried out, and the spatial phenomena can be stereoscopically displayed. 3D modeling is a very important part of the digital city construction. With the 3D model, we can make all kinds of decisions at high speed and quickly. Commodity demand determines the development of the market, and the demand for three-dimensional digital city will continue to increase. The specific research work of this paper is AutoCAD and 3DMax modeling method. The 3D modeling method and SkyIine modeling method of SketchUP are analyzed, and their advantages and disadvantages are considered synthetically. AutoCAD combined with 3D Max modeling method is a very important part of the digital city construction. Therefore, this paper starts with the accuracy of CAD background map. To texture production and paste accuracy, to the height of the building 3D model accuracy and terrain height accuracy, through the actual collection of data and related cases for close analysis. The precision requirement of each work in the process of modeling is discussed. Based on the automatic synthesis of 2D map, the fine degree of 3D spatial data modeling is discussed. The feasibility of 3D modeling method is studied by using AutoCAD and 3DMax modeling software to construct 3D model of urban buildings. And verify the accuracy and precision of the analysis of the feasibility. The establishment of three-dimensional urban landscape, so that users in the virtual environment, real, comprehensive experience of all kinds of scenes, real-time, dynamic query related information. Through the management and construction of the digital city, it is convenient for all departments to make decisions on the overall planning and construction of the city, traffic line operation and management, and safety issues. To some extent, it improves the sharing and sharing of urban spatial information.
【学位授予单位】：兰州交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU984

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