基于BIM+GIS的室内外三维一体化系统设计与实现

Design and Implementation of an Indoor and Outdoor 3D Integrated System Based on BIM+GIS

传统的虚拟场景是基于三维GIS平台进行建立的,注重对海量地形数据的组织与调用、多分辨率地形的描述以及多源数据的集成,主要从宏观角度对室外地形环境进行表达,缺少室内空间的相关描述。BIM和GIS两者优势互补,两者的结合能够实现室内外空间的一体化三维表达,实现微观和宏观的结合。基于设计的框架,设计并开发了BIM+GIS室内外仿真原型系统,以OSGEarth SDK为基础,通过C++语言的二次开发,将上述方法进行集成,实现了集成可视化交互、信息交互、交互建模以及分析应用四大应用模块的室内外一体化空间的三维可视化场景,并针对具体应用实现了室内外一体化任务推演。

The traditional virtual scene is built based on a 3D GIS platform,and it focuses on the organization and invocation of massive terrain data,the description of multi-resolution terrain and the integration of multi-source data,mainly expresses the outdoor terrain environment from a macro perspective,but lacks the relevant description of the indoor terrain environment.The advantages of BIM and GIS are complementary,and the combination of the two can achieve the integrated 3D expression of indoor and outdoor space and realize the combination of micro and macro.This paper designs and develops a BIM+GIS indoor and outdoor simulation prototype system.Based on the design framework,on the basis of OSGEarth SDK,through the secondary development of C++,the system integrates the above methods,realizes the 3D visualization scene of indoor and outdoor integrated space that integrates the four application modules of visual interaction,information interaction,interactive modeling and analysis and application,and realizes indoor and outdoor integrated task deduction for specific applications.