基于Unity3D的地下三维管线自动化建模设计研究

The Research on Automatic Modeling and Design of Underground 3D Pipeline Based on Unity3D

针对城市地下管线探测成果信息化过程中遇到大量数据的三维建模问题,本文结合北京某区地下管线三维模型建设工作,提出使用Unity3D引擎连接地下管线数据库来自动化生成三维标准模型的方法,完成各种管线模型的生成和单体化,实现地下管线的三维可视化,并用.obj格式导出存储。测试结果表明:北京某区的地下管线数据管线种类15种,数据库记录总数为209450条,生成的单体模型总数为387695个,生成的三维管线模型纹理、材质符合相关数据标准,说明以Unity3D引擎为载体的地下管线自动化建模系统准确可靠且对大范围的地下管线数据仍可运行,可为其他城市地下管线自动化建模的开展提供参考。

In order to solve the problem of 3D modeling of a large amount of data in the process of informatization of urban underground pipeline exploration results,this paper proposes a method to automatically generate 3D standard models by connecting the underground pipeline database with Unity3D engine in combination with the construction of 3D models of underground pipelines in a certain area of Beijing,so as to complete the generation and monomer of various pipeline models,and realize the 3D visualization of underground pipelines export and store in obj format.The test results show that there are 15 kinds of underground pipeline data pipelines in a certain area of Beijing,the total number of database records is 209450,and the total number of single models generated is 387695.The texture and material of the 3D pipeline models generated meet the relevant data standards,indicating that the underground pipeline automatic modeling system based on Unity3D engine is accurate and reliable,and can still operate for a large range of underground pipeline data.It can provide reference for the development of automatic modeling of underground pipelines in other cities.