基于CITYGML标准的BIM三维建筑模型转换

BIM 3D Architecture Model Transformation Based on CITYGML Standard

摘要: 随着时代发展，三维地理信息系统(3DGIS)的重点正由室外转向室内，但是室内模型获取较困难，现有方法存在效率过低、成本偏高，模型数据质量不佳等问题。建筑信息模型(BIM)是建筑行业信息化的产物，其数据完整、全面，可以作为潜在3DGIS建筑模型数据的一个重要来源。本文基于GIS的建模标准CityGML与BIM的IFC标准，研究了两种标准的异同点，建立两种标准的对应关系并进行了模型间的转换，将基于IFC的BIM建筑模型转换成了满足CityGML标准的3DGIS模型数据。

Abstract: With the development of the times, the focus of 3D Geographic Information System (3DGIS) is moving from outdoor to indoor. However, the indoor model is difficult to obtain. The existing methods have the problems of low efficiency, high cost and poor quality of model data. Building information model (BIM) is the product of the information of construction industry. The data of BIM is complete and comprehensive, and can be used as a source of potential 3DGIS indoor data. Based on the standards of CityGML and BIM, this paper studies the similarities and differences of the two standards. Furthermore, we establish the corresponding relationship between the two standards and conduct the transformation between the two models, transforming the BIM into the model that meets the CityGML standard.