城市三维景观构建方法与应用

发布时间：2018-07-03 06:40

本文选题：城市 + 三维景观　；参考：《西安科技大学》2015年硕士论文

【摘要】：城市三维景观模型构建方法中,3Ds MAX软件建模方法最常用,所建模型美观,但数据量大、建设周期长。而CityEngine采用规则语句可快速构建大范围的城市三维景观场景,但模型逼真度不高,且对特殊、复杂、规律性不强的城市景观构建表达能力不强。本文采用CityEngine与3Ds MAX结合方式,依据城市三维模型质量评价体系分析各类模型精度,确定出适合不同表达精度城市景观的模型构建方法,分别构建实验区城市建筑、道路等三维景观,并在ArcGIS Engine组件开发环境下建立城市三维景观可视化管理信息系统,实现实验区城市景观的三维浏览、查询、空间量测等管理功能。针对CityEngine与3Ds MAX结合构建实验区城市三维景观模型及建立可视化管理信息系统,其关键技术总结如下:视距的远近或目标地物重要性大小不同,需要采用不同的细节层次结构表达;通过插值法与嵌入特征条件约束的方法可有效解决点、线、面状地物与起伏地形的匹配问题;CityEngine与3Ds MAX构建城市三维景观模型的方法,能够高质、快速地构建大范围城市三维景观;CityEngine构建的城市三维景观模型可利用Geodatabase中的空间数据,准确、快捷地构建城市三维景观可视化管理信息系统。
[Abstract]:Among the three dimensional landscape modeling methods, 3DS Max is the most commonly used one. The model is beautiful, but it has a large amount of data and a long construction period. The CityEngine can quickly construct a wide range of urban 3D landscape scenes by using the rule statement, but the model fidelity is not high, and the ability to express the special, complex and irregular urban landscape is not strong. In this paper, the method of combining CityEngine with 3DS Max is used to analyze the accuracy of various models according to the quality evaluation system of urban 3D model, and the model construction method suitable for different expression precision of urban landscape is determined, and the urban buildings in the experimental area are constructed separately. The 3D landscape, such as road, and the visual management information system of urban 3D landscape are established under the ArcGIS engine component development environment to realize the management functions of 3D browsing, querying and spatial measurement of the urban landscape in the experimental area. According to the combination of CityEngine and 3DS Max to construct 3D landscape model and establish visual management information system in experimental area, the key technologies are summarized as follows: distance of sight or importance of object is different. It is necessary to express different levels of detail, and the problem of matching points, lines, surfaces and undulating terrain can be effectively solved by means of interpolation and embedding feature constraints. The method of constructing urban 3D landscape model by using CityEngine and 3DS Max can effectively solve the problem of matching points, lines, surfaces and undulating terrain. The urban 3D landscape model can be constructed quickly and qualitatively. The 3D landscape model can use the spatial data in Geodatabase to construct the visual management information system of 3D landscape accurately and quickly.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU984.1

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