摘要
基于可视化编程处理软件FME(feature manipulation engine),设计了语义信息过滤和几何信息提取与处理的方法,实现了IFC(industry foundation classes)至LOD2(level of detail 2)以及LOD3细节层次下CityGML(city geography markup language)的模型转换,并通过实验验证了该方法.结果表明:本文提出的方法能够根据表达尺度的需求,有效地将结构复杂的IFC模型转换为不同细节层次的CityGML模型,实现不同比例三维地图中建筑模型的可视化,避免了重复建模.
The aim of this study is to improve the interoperability,integrability and shareability of the IFC and CityGML standards.This involves the conversion of 3D spatial models from IFC to CityGML format in levels of Detail 2 and 3 using feature manipulation engine(FME)to map appropriate feature types between the two formats based on experimental data.The result shows that the conversion can be adopted to generate CityGML models in different levels of detail from a complex IFC model to accomplish the visualisation of a building in various scale 3D maps efficiently.At the meantime,the conversion contributes to avoidance of redundant modelling of the same building.
出处
《扬州大学学报（自然科学版）》
CAS
北大核心
2017年第3期26-30,共5页
Journal of Yangzhou University：Natural Science Edition
基金
The University of Melbourne Infrastructure Engineering Research Project(2017-s1-cv47 41)
