虚拟三维景观规划模型及场景的研究与实现

发布时间：2018-05-14 18:50

本文选题：景观规划 + SketchUp　；参考：《西安科技大学》2017年硕士论文

【摘要】：虚拟三维景观规划作为虚拟仿真技术的一个重要应用领域,具有极大的应用价值和发展空间。虚拟三维景观规划模型及场景的建立可以真实的反应规划的科学性、合理性,对规划设计师与用户进行沟通及修改规划有着积极的意义。本文通过多方面对比,选取SketchUp、3dsMax作为建模及纹理贴图软件,结合VR-Platform作为开发平台,设计并实现了以黑渭河湿地公园为背景的虚拟三维景观规划演示系统。在虚拟三维景观规划制作中,将主要集中在三维地形、三维景观模型、模型优化、虚拟三维景观规划漫游系统生成四个方面:(1)经过详细研究ArcGIS、SketchUp建模方法及3dsMax贴图方法,采用ArcGIS和SketchUp建立三维地形,在3dsMax中采用位图贴图方式和UVW贴图坐标对三维地形模型进行贴图。(2)通过对比多种三维建模软件,选取SketchUp制作三维景观模型,采用手绘线、多边形建模的方法,完成了景观小品的建模,通过曲面平整、推拉等工具,完成道路、河流、建筑物等三维景观模型的制作,并把三维景观模型与三维地形进行贴合。(3)通过研究三维模型优化方法,从精简模型个数、精简模型面数和优化贴图三个方面对模型进行优化处理,通过3dsMax进行纹理贴图及烘焙,提高场景的运行效率和真实感。(4)利用VR-Platform平台建立虚拟三维景观规划场景,通过制作相机和添加碰撞检测等实现漫游功能,通过连接数据库,可以实现信息的查询,通过添加音乐、特效等使观察者在进行漫游时具有沉浸感。本文建立的虚拟三维景观规划模型及场景具有真实感,场景演示速度较快,实现规划者与决策者能够更加直观地观察规划设计方案,帮助规划者与决策者更加清楚的确认方案的合理性,提高规划的合理性、科学性。
[Abstract]:As an important application field of virtual simulation technology, virtual 3D landscape planning has great application value and development space. The establishment of virtual 3D landscape planning model and scene can truly reflect the scientificity and rationality of planning, which has positive significance for planning designers and users to communicate and modify the planning. This paper selects SketchUpup 3dsMax as modeling and texture mapping software, and combines VR-Platform as development platform to design and implement a virtual 3D landscape planning demonstration system based on Heiwei River Wetland Park. In the production of virtual 3D landscape planning, it will mainly focus on three dimensional terrain, three dimensional landscape model, model optimization, virtual 3D landscape planning roaming system generation four aspects: 1) after the detailed study of ArcGIS-SketchUp modeling method and 3dsMax mapping method, Using ArcGIS and SketchUp to build 3D terrain, using bitmap mapping method and UVW mapping coordinate in 3dsMax to map 3D terrain model. Through comparing many kinds of 3D modeling software, SketchUp is selected to make 3D landscape model, and hand-drawn line is used. Polygon modeling method, completed the landscape sketch modeling, through surface leveling, push-pull tools, completed the road, rivers, buildings and other three-dimensional landscape model making, Combining 3D landscape model with 3D terrain, this paper studies the optimization method of 3D model, optimizes the model from three aspects of reducing the number of models, reducing the number of model surfaces and optimizing the map, and carries out texture mapping and baking through 3dsMax. The virtual 3D landscape planning scene is built by using VR-Platform platform, the roaming function is realized by making camera and adding collision detection, and the information query can be realized by connecting the database. By adding music, special effects and so on, the observer has a sense of immersion in roaming. The virtual 3D landscape planning model and scene established in this paper are realistic, and the scene demonstration speed is faster, so the planners and decision makers can observe the planning and design scheme more intuitively. Help planners and decision makers to clearly confirm the rationality of the program, improve the rationality of planning, scientific.
【学位授予单位】：西安科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TU17;TU986

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