GIS was initially focused on 2D dataset, and its capability in 3D data creation and processing is quite limited (Zhu et al. 2019), covering the entire lifecycle of a construction project, including plan, design, construction, operation, and dismantling (Volk, Stengel, and Schultmann 2014 Azhar 2011).Д«IM can benefit GIS by providing detailed 3D building models.

BIM has been widely used in the Architecture, Engineering and Construction/Facility Management (AEC/FM) domain (Zhu et al. The former refers to virtual 3D building models with rich building information and the latter means the process of producing and processing these models (Eastman et al. A bridge model is used to validate the proposed method, and a Web GIS-based bridge management system is developed to demonstrate a possible usage of the transformed shapefile model.Д«IM refers to Building Information Model or Building Information Modelling. This paper develops algorithms to interpret the commonly used profiles of swept solid for the transformation of IFC into shapefile. Compared with Brep, the transformation of swept solid is more challenging as each type of profile for swept solid defined in IFC has to be properly interpreted and converted. Among all the solid modelling methods used by IFC, Brep and swept solid are the most often used two methods. In addition, the use of different coordinate systems also contributes to the geometry transformation issue. IFC generally represents 3D objects using boundary representation (Brep), swept solid, constructive solid geometry (CSG), clipping and mapped representation, while shapefile only uses Brep. However, this transformation is difficult due to the different modelling methods used by IFC and shapefile. The underlying data transformation from Industry Foundation Classes (IFC) to shapefile enables GIS to use the rich building information.

For GIS, BIM is a promising source of three-dimensional (3D) building information that can be used in the study of smart city, green building, big data, etc. Integration of Building Information Modelling (BIM) and Geographic Information System (GIS) can benefit both the Architecture, Engineering and Construction/Facility Management (AEC/FM) domain, and the geospatial industry.

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