[1]吴红燕,张学全.基于 VR 的管网三维自动建模研究[J].计算机技术与发展,2019,29(10):1-5.[doi:10. 3969 / j. issn. 1673-629X. 2019. 10. 001]
　WU Hong-yan,ZHANG Xue-quan.Research of 3D Automatic Pipe Network Modeling Based on VR[J].,2019,29(10):1-5.[doi:10. 3969 / j. issn. 1673-629X. 2019. 10. 001]
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基于 VR 的管网三维自动建模研究()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
29
期数:
2019年10期
页码:
1-5
栏目:
应用开发研究
出版日期:
2019-10-10

文章信息/Info

Title:
Research of 3D Automatic Pipe Network Modeling Based on VR
文章编号:
1673-629X(2019)10-0001-05
作者:
吴红燕1 ; 张学全2
1. 武昌理工学院 信息工程学院,湖北 武汉 430223; 2. 武汉大学 资源与环境学院,湖北 武汉 430079
Author(s):
WU Hong-yan 1 ; ZHANG Xue-quan 2
1. School of Information Engineering,Wuchang University of Technology,Wuhan 430223,China; 2. School of Resource and Environmental Sciences,Wuhan University,Wuhan 430079,China
关键词:
虚拟现实; 地下管网; 三维自动建模; 四叉树瓦片; 三角构网
Keywords:
virtual reality; underground pipe network; 3D automatic modeling; quad-tree tile; mesh construction
分类号:
P302
DOI:
10. 3969 / j. issn. 1673-629X. 2019. 10. 001
摘要:
针对现有三维管网虚拟仿真系统中模型衔接效果较差和需要人工参与等问题,提出了一种基于 VR 的管网三维自动建模方法,能够快速构建大范围地下管网三维虚拟场景。 首先对二维矢量管网数据进行数据采样和四叉树瓦片分割,将建模参数信息存储到对应的 XML 瓦片索引文件中。 其次,根据场景漫游,动态加载管网瓦片建模信息进行快速三角构网和纹理贴图,实时构建三维管道和接头模型。 最后依次遍历视野内的所有瓦片进行建模,构成大范围地下管网 VR 场景。 在开源三维 GIS 平台 WorldWind 中进行了实验验证,结果表明该方法能够快速自动构建地下管网三维模型并流畅地实现大范围虚拟仿真。
Abstract:
Aiming at the problems of poor model connection and manual participation in the existing three-dimensional pipe network simulation system,we propose a VR-based 3D automatic modeling method for pipe network,which can quickly build a large-scale underground pipe network 3D virtual scene. Firstly,data sampling and quad-tree tile segmentation are carried out for 2D vector pipe network data,and the modeling parameter information is stored in the corresponding XML tile index file. Secondly,according to the scene roaming,the tiles in the viewing extent is dynamically loaded and the pipe network model including pipe and joint model are automatically constructed by mesh triangulation and texture mapping. Finally,all the tiles in the viewing extent are modeled in turn,which forms a large-scale 3D pipe network VR scene. The experimental verification is carried out in the open source 3D GIS platform named WorldWind,which shows that the method can quickly construct the 3D model of underground pipe network and smoothly realize large-scale 3D scene simulation.

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更新日期/Last Update: 2019-10-10